DE1103925B - Process for the production of solutions of oil-soluble basic salts of organic carboxylic and sulphonic acids in hydrocarbon oils that do not gel with water vapor - Google Patents

Description

Process for the preparation of solutions which do not gel with water vapor Oil-soluble basic salts of organic carboxylic and sulfonic acids in hydrocarbon oils It is known that oil-soluble salts of polyvalent metals and organic carbon and sulfonic acids as detergent additives to lubricating oils. In many In some cases it is advantageous to use basic salts. The basicity of the salts is improved not only the cleaning effect of the lubricating oils, but also gives them one so-called "alkaline reserve". This "alkaline reserve" also makes this possible Neutralization of corrosive sulfuric acids in an engine can be formed by burning a sulfur-containing fuel oil, so that prevents corrosive wear and tear on metal parts of the engine.

Oil-soluble basic salts of organic acids are also used in other oils, For example, heating or fuel oils are added to prevent corrosion and clogging of filters to prevent. You will also find light hydrocarbon mixtures, such as anti-corrosive preparations and gasolines. You can also for the production of water-in-oil emulsions, of biocidal products (in particular of fungicides, wood preservatives), of drying agents, of Catalysts applied to substrates and for the production of metal mirrors can be used on smooth surfaces.

Oil-soluble basic salts of organic acids are described, inter alia, in the Belgian patents 532 896 and 543 606, the USA patents 2585 520 and 2671758 and the French patents 1051235, 1079 237, 1096 346 and 1110712. You can use the empirical formula RpMeq - x Me,. Z, can be reproduced. In this formula, RpMeq is a salt of an organic carboxylic or sulphonic acid which is oil-soluble per se, R is an organic carboxylic or sulphonic acid residue, 1-1e is a: metal, p and cq are integers depending on the valence of R and Me. In Me ', ZS, Me' is a metal (the same metal as Me or a different one), Z is any anion or acid residue of such a kind that the compound Me ,. Z, is oil-insoluble per se, r and s are integers depending on the valence of Me and Z. x is any number, which may or may not be an integer.

The oil-soluble basic salt can be of various organic groups Acids derived, such as from sulfonic acids or carboxylic acids. The sulfonic acids can differ from aliphatic, cycloaliphatic, aromatic or alkyl aromatic Derive hydrocarbons. The latter class of acids preferably contains at least 12 carbon atoms in the allyl substituent. Put the petroleum sulfonic acids represent a special group of sulfonic acids. Examples of suitable carboxylic acids are alkylated aromatic carboxylic acids, which have a relatively long alkyl chain contain, like the alkylsalicylic acids, which have 12 or more carbon atoms in the Have alkyl chain, as well as cycloaliphatic carboxylic acids, such as petroleum naphthenic acids.

Me, ZS can e.g. B. a metal oxide, hydroxide, carbonate, sulfide, sulfite or oxalate, and one then says that the basic salt has an oxide, hydroxide, Carbonate, sulfide, sulfite or oxalate basicity.

There can be more than one compound of the type Me, Zs in the basic salt, so that the basic salt z. B. may have partial hydroxide basicity and partial carbonate basicity. The basic salts can be monovalent metals such as sodium; Contains potassium, lithium. Ammonium can also be present, and the term "monovalent metal" is to be understood to include ammonium as well. The basic salts can also contain polyvalent metals, such as the alkaline earth metals (especially calcium), magnesium, zinc, lead, aluminum, copper, nickel, tin, cobalt and manganese. The basicity of the basic salts can be expressed by the formula in which M is the number of metal equivalents (Me-f -, \ 1e ') and E is the number of equivalents of the organic acid R which are contained in a certain amount of the basic salt.

Solutions of oil-soluble basic salts of organic acids in hydrocarbon oils sometimes have a tendency to gel when they come into contact with water vapor come.

The oils used are liquid hydrocarbons and their mixtures, such as Benzene, toluene, xylene, pentane, heptane and petroleum fractions from gasoline to lubricating oil fractions, into consideration.

The above-mentioned tendency to gel can increase in the art Difficulties lead. The gelling of a lubricating oil or a heating or fuel oil. in which an oil-soluble basic salt of one of the organic acids mentioned dissolved can lead to clogging of the oil filters. The gelation of solutions Oil-soluble basic salts of organic acids, which are used as biocides or fungicides Products can lead to clogging of the cutting devices, with which the products must be finely divided. In technology it cannot always be prevented that the solutions come into contact with water vapor come, since a solution is actually already in contact with water vapor, when it is in contact with the air.

There is a simple method of determining the above adverse effects Gelability of the solution of an oil-soluble basic salt of an organic Acid in a hydrocarbon oil. Air with a relative humidity of 60% is for 2 hours at 20 ° C and at a rate of 3'L 1 per hour with the help of a capillary tube through 1 cm3 of the oil solution, which is in a test tube 1 cm in diameter. A solution, which under shows no signs of gelation under these conditions, this is also the case in technology do not exhibit. Such a solution is referred to here as a “solution that does not use water vapor gelled «. A solution that undergoes gelation under the conditions described shows, leads to the above-mentioned difficulties also in the art. Such Solution is called "solution that gels with water vapor".

It cannot be said in advance which solutions are more oil-soluble basic salts with organic acids in hydrocarbon oils with water vapor gel. In general, solutions of salts have a tendency to gel Oxide or hydroxylicity stronger than in solutions of salts, which are different Have kind of basicity. For example, have solutions of salts with carbonate basicity generally no tendency to gel with water vapor. The tendency to gel furthermore, with water vapor it generally grows with increasing basicity of the oil-soluble Salt. The tendency to gel sometimes occurs at a basicity of 30011 / o and with a basicity of 500%, in particular a basicity of 600%, stronger. This applies in particular to oil solutions of salts with an oxide or hydroxide base and especially for salts derived from organic carboxylic acids. Furthermore, the tendency to gel also depends on the type of solvent as well on the type of metal and organic acid present in the salt, away. For example, the tendency to gel is often in the case of solutions of basic salts of carboxylic acids stronger than in solutions of basic salts of sulfonic acids.

However, it does not depend on whether a solution gels with water vapor or not on the salt concentration. For solutions with a low salt concentration (e.g. 0.5 percent by weight) gelation can only lead to the formation of small flakes, which can hardly be seen with the naked eye, while solutions of the same Salt in the same solvent with a higher salt concentration (e.g. 5 percent by weight) can become completely stiff. However, from a technical point of view, both are Types of gelation equally undesirable.

It has now been found that the gelling of solutions oil-soluble highly basic Salts of organic carboxylic or sulfonic acids can be prevented in that an organic compound which is present in the hydrocarbon oil is added to the solution is soluble and contains at least one polar group.

Examples of suitable compounds are low and higher molecular weight, monohydric or polyhydric alcohols such as methanol, ethanol, Hexano.l and decanol, higher molecular weight Alkylamines, such as decylamine, higher molecular weight alkylphenols, alkylaromatic carboxylic acids and oxycarboxylic acids, naphthenic acids, aliphatic carboxylic acids, sulfonic acids, phosphoric acids or their salts. Although the invention does not adhere to any particular theory or The idea is to be bound, but it can be said that the effect of the added Compounds is believed to be explained in the following manner. Man can imagine that in a clear solution of a basic salt, its Basicity is, for example, calcium hydroxide basicity in a hydrocarbon oil the basic salt is in the form of micelles in which the calcium hydroxide is for the most part shielded from the oil phase by the olephilic groups basic salt molecules, which extend into the oil phase. A part of Calcium hydroxide groups, however, are not completely shielded by olephilic groups, but is present on the periphery of the micelles and is therefore in direct contact Contact with the oil phase. The micelles can be found in such a clear solution move freely in relation to each other.

However, if the solution comes into contact with water, the micelles can be bonded to one another through the formation of hydrogen bonds, creating molecular aggregates of the type shown below: The mean for this the calcium hydroxide groups, which are in direct contact with the oil phase. In the structure given above, the Ca (OH) 2 groups on the left belong to a different micelle than those on the right. This mutual connection of the micelles creates a cross-linked structure in the hydrocarbon oil, which is why the solution then appears to be gelled.

The compounds which can be used according to the invention not only have to contain a polar group, but also have to be soluble in the oil solution. This means that they contain an olephilic, generally non-polar group. Taking an alcohol (represented by ROH) as an example of such a compound, the addition of such a compound to the solution leads to the formation of molecular aggregates of the type indicated below: The calcium hydroxide groups are now shielded from any water molecules that may be present.

The "binding" of the substances mentioned can either be physical or chemical in nature. If z. B. an oil-soluble organic acid to one Solution of a basic salt, which has hydroxide basicity, is added, the acid reacts with the hydroxyl group of the metal hydroxide. This implementation can by warming or by heating to over 100 ° C.

From the above, it can be seen that the compound added is the desired one Has an effect if it is present in the solution before it is under water vapor Bringing about gelation comes into contact.

The desired effect can therefore not only be achieved by that the basic salt is dissolved in a hydrocarbon oil and then the one gelation preventing compound of the type mentioned is added, but you can also first of all the gelation-preventing compound which is present in the hydrocarbon oil is soluble and contains at least one polar group in a hydrocarbon dissolve and then the oil-soluble basic salt of an organic carboxylic or sulfonic acid Dissolve in this solution or you can use the oil-soluble basic salt of an organic Acid having the group which is soluble in the hydrocarbon oil and has at least one polar group Mix containing compound and then this mixture in a hydrocarbon oil dissolve.

It is known per se that metal-rich complex compounds are more organic Acids can also be produced using so-called promoters, with these compounds are incorporated into the complex compound in question and from this at most by subsequent treatment with an acidic compound, like sulfur dioxide, can in part be removed again. Come as promoters including phenols, naphthols, aromatic oxycarboxylic acids and sulfonic acids into consideration, provided their ionization constant at 25 ° C is greater than 10-10 and their saturated aqueous solution at the same temperature does not have a pH has over 7. By adding such compounds to that used for manufacture of the metal-rich complex used mixture of starting materials can be but gelation of the basic salts thus obtained in the presence of water vapor not avoided, as the following exemplary embodiments will also show. The anti-gelling agents provided according to the invention are only effective if if you add them to the finished basic salt. However, such a measure is in the previously described process for the production of oil-soluble, metal-rich Complex compounds not provided.

Soluble basic salts of organic acids can be found in solvent-free State manufactured, stored and / or brought onto the market. The salts the preparations used z. B. lubricants, heating or Propellant oils or biocidal compositions added, where appropriate .these basic salts mixed with a compound that prevents gelation, which is soluble in an oil and contains a polar group, to be placed on the market, so when using the basic salts for the production of preparations no Difficulties arise in terms of gelation.

Oil-soluble basic salts of organic acids can also often be called so-called Concentrates, d. H. of solutions in which the basic salt is considerably higher Concentration is present than in the mixtures for which the basic salt lasts Ultimately is intended, manufactured, stored and / or placed on the market will. For the reasons explained above and also to avoid gelation of the concentrates themselves, it is important that the gelation of the "concentrate" preventive organic compound which is soluble in an oil and a polar one Group already exists in the "concentrate". The invention is through the the following examples. Unless otherwise stated, the included in the examples, solutions used the basic salt in one concentration of 5 percent by weight. The tendency to gel was determined by determining the gel time measured using the test method given above. Example I This example relates refer to the use of various alkyl salicylates, which are made up of a mixture from mono- and D'-C14 to C18 alkyl salicylic acids.

The salicylic acids in question were made in a known manner as follows Made: Phenol was mixed with a mixture of C14 to C18 olefins alkylated from mono- and di-C14 to -C18 alkylphenols. The alkylphenols were then converted into sodium alkylphenolates and with carbon dioxide into the corresponding Sodium alkyl salicylates transferred. The reaction product thus obtained always contains some unconverted sodium alkyl phenates. It is therefore acidified so that a mixture of crude alkylsalicylic acids is formed, which, however, is still mixed with a little alkylphenod are contaminated.

These crude alkyl salicylic acids can be purified by it dissolves in 50% aqueous ethanol, this solution is neutralized with NaOH and then extracted with pentane. The so obtained pure sodium alkyl salicylates then acidified, whereby the pure alkylsalicylic acids are obtained. Attempt no. 1 A basic calcium alkyl salicylate with a hydroxyl basicity was used as the basic salt of 330 ° / o used.

A colorless, odorless and tasteless medicinal product served as the solvent Paraffin oil with a viscosity of 25 eSt at 20 ° C and a specific weight (dü) of 0.867, which was made from a Venezuelan crude oil. For this purpose the crude oil was distilled and then with liquid sulfur dioxide extracted until a raffinate is obtained in a yield of 50 ° / m. This Raffinate was then treated seven times with 5% oleum and then with aqueous 1 sodium hydroxide solution neutralized, whereupon the raffinate washed with aqueous alcohol and then treated with an activated lead earth.

To prepare the test solution, calcium chloride was mixed with a Water content of 30 percent by weight dissolved in isopropanol, 3 g of the moist Calcium chloride was used for every 100 cc of alcohol. 461 cc of this Solution were with a solution of 20 g of the pure neutral calcium all, zylsalicyiate mixed in 800 cc of a mixture of 9 parts isopropanol and 1 part benzene. 332 cc of a 0.525N solution of K O H were then added to a mixture with stirring from 9 parts of isopropanol and 1 part of ethanol added. This reaction mixture was then centrifuged and the settling sediment was dispersed in toluene, whereupon the mixture was centrifuged again. The solution thus obtained became whole Treated in the centrifuge for 1 / z hour, producing a solution of basic calcium all; vlsalicylates with a hydroxyl basicity of 330% in toluene.

The medicinal paraffin oil described was added to this solution and then removed the toluene by distillation.

The gelation time of this solution was 10 minutes. A gelation could be achieved by adding 35 percent by weight, based on the basic salt of the corresponding neutral calcium salt. Experiment No. 2 As basic Salts in turn became basic calcium alkyl salicyates with a hydroxide basicity used by 330%.

A mineral lubricating oil was used as the solvent, its viscosity at 60 ° C was 11 cSt.

The test solution was in the under test Zr. 1 described Made with the modification that instead of medicinal paraffin oil the mentioned mineral lubricating oil was used.

The gelation time of the solution was 20 minutes. By an addition of 10 percent by weight, based on the basic salt of the neutral in question Calcium salt, gelation could be prevented.

Experiment No. 3 Basic calcium alkyl salicylates with a basic hydroxide structure of 950% were dissolved in technical grade xylene.

This solution was prepared as follows: 101g of pure calcium neutral alkyl salicylates were made initially dissolved in 250 g of technical grade xylene. While stirring were then simultaneously the following two solutions were added: a) A 14.8 weight percent solution of calcium chloride in methanol and b) a 4.42N solution of sodium hydroxide in Methanol.

The calcium chloride and sodium hydroxide were used in amounts which is 5 or 10141o1 per mole of the salicylic acid present in the calcium alli: yl salicylate corresponded. The methanol and the water were then removed from the by means of distillation Removed reaction mixture and centrifuged the remaining mixture. From the remaining solution, the xylene was separated by distillation. The solid residue consisted of basic calcium alkyl salicylates with a hydroxide basicity of 950%. This residue was then dissolved in xylene.

The gelation time of this solution was 5 minutes. By a previous one Addition of 90 percent by weight of the corresponding free alkyl salicylic acids, based on the alkali salicylic acid contained in the basic salt, gelation could occur be prevented. Experiment No. 4 Basic calcium alkyl salicylates with a hydroxide basicity of 1130% were dissolved in technical grade Xvlol.

The solution was prepared as follows: 10 g of pure, neutral calcium alkyl salicylates were dissolved in 300 cc of xylene. Then, with stirring, 2 solutions were added at the same time added, namely a) 51.6 cc of a 4.42N solution of sodium hydroxide in methanol and b) 85.1 cc of a 14.8 weight percent solution of calcium chloride in methanol.

The calcium chloride used for this had a water content of 6.5 percent by weight. The reaction mixture was then centrifuged and the remaining solution became the methanol and water along with something Separated xylene by distillation. In this way a clear solution of the basic calcium alkyl salicylates with a hydroxide basicity of 1130 ° / u in xylene obtain.

This solution was allowed to stand in the air for 24 hours, and they was then gelled.

By adding 25 percent by weight of decanol beforehand, based on the basic salt, such gelation could be prevented. Experiment No. 5 Basic calcium alkyl salicylates with a hydroxyl basicity of 245% were used in the already dissolved in the medical paraffin oil described in @Tersuch No. 1.

The preparation of this solution was carried out in the same way as indicated in Experiment No. 1, with the modification that both calcium chloride and potassium hydroxide were used in an amount of 2.5 equivalents per equivalent of the neutral calcium alkyl salicylate.

This solution shows no tendency to gel. Experiment No. 6 Basic Copper alkyl salicylates with an oxide basicity of 870% were already in the experiment No. 1 described medicinal paraffin oil dissolved. This solution was prepared as follows: 10 g of pure alkyl salicylic acids and 8 g of anhydrous Copper chloride was in 80 g of a mixture of 9 parts of isopropanol and 1 part Benzene dissolved. To this solution, a solution of 7.1 gradually became with stirring kg of potassium hydroxide in 200 g of a mixture of 9 parts of isopropanol and 1 part of benzene and 1 part of ethanol was added. The reaction mixture thus obtained was then centrifuged, and the settling sediment was in a gasoline with a boiling range between 60 and 80 ° C dispersed. The mixture thus obtained was centrifuged again and the solvent was separated from the resulting solution by distillation. The remaining solid residue consisted of basic copper alkyl salicylates with an oxide basicity of 870%. This residue was then-in the medical paraffin oil dissolved.

The solution thus obtained showed no tendency to gel. attempt No. 7 Basic copper alkyl salicylates with an oxide basicity of 1400% were found in dissolved in the medicinal paraffin oil described in experiment no.

This solution was prepared as follows: 10 g of crude alkaline salicylic acids were dissolved in 75 cc of technical grade xylene. While stirring gradually became simultaneously two solutions added, namely a) 64 cc of a 20 weight percent solution of anhydrous copper chloride in methanol and b) 44.5 cc of a 4.25N solution of sodium hydrochloride xyd in methanol.

The reaction mixture was then centrifuged and the resulting Solution, the methanol and some xylene were removed by distillation. From the remaining solution, the remaining xylene was separated by means of vacuum distillation. The solid residue consisted of basic copper alkyl salicylates with an oxide basicity of 1400 ° / o. and this residue was dissolved in the medicinal paraffin oil.

The gelation time of the solution was 15 minutes. Through the following However, additives could prevent gelation: a) 6 percent by weight of the corresponding free alkylsalicylic acids, b) 12 percent by weight of the corresponding alkylphenols, c) 15 percent by weight dicetylphenol, d) 5 percent by weight decanol, e) 3 percent by weight Decylamine, f) 3 percent by weight petroleum naphthenic acids with an acid number of 170, g) 5 percent by weight of petroleum sulfonic acids with an acid number of 120, h) 3 percent by weight Dinonyl phosphate, the nonyl groups of which consist of 3,5,5-trimethylhexyl groups.

The percentages by weight relate to the amount of the basic Salt in the solution.

Experiment No. 8 Basic ferric alkyl salicylates with an oxide basicity of 900%. were dissolved in technical grade xylene. This solution was made as follows: First, 50 g of pure alkyl salicylic acids were dissolved in 2000 g of technical grade xylene. With stirring, two more solutions were then gradually added at the same time, namely a) a 20 weight percent solution of a total of 64 g of anhydrous ferric chloride in methanol and b) a 4.69N solution of a total of 48 g of sodium hydroxide in methanol.

A total of 150.0 ccm of liquid was added from the reaction mixture Atmospheric pressure and a further 500 ccm of liquid distilled off under vacuum. Of the Distillation residue was centrifuged and the remaining solution became the solvent is distilled off. The solid residue consisted of basic ferric alkyl salicylates with an oxide basicity of 900%, and this residue was in technical Xylene dissolved.

This solution showed no tendency to gel. Experiment No. 9 Basic Ferrialkylsalicylates with a basicity of 1440%. were in technical grade xylene solved.

The solution was prepared as follows: First, 5 g of pure Alkyl salicylic acids dissolved in 250 cc xylene. While stirring were then gradually at the same time two other solutions were added, namely a) 31 cc of a 20 weight percent Solution of anhydrous ferric chloride in methanol and b) 26 ccm of a 4.69 N solution of sodium hydroxide in methanol.

The reaction mixture was then diluted with a further 150 cc of xylene, and there were again 31.5 cc of the ferric chloride solution and 13 cc of the sodium hydroxide solution added at the same time with stirring. The mixture thus obtained was then centrifuged, and the settling sediment in a mixture of 84 parts of xylene and 16 parts Dispersed methanol. The mixture was centrifuged again and from the obtained Solution, the solvents were distilled off. The residue was made up of basic Ferrialkylsalicylaten with an oxide basicity of 1440% together, and this residue was dissolved in technical grade xylene.

The gelation time of the solution was 40 minutes. By a previous one Addition of 2 percent by weight of methanol, based on the solution, caused gelation be prevented. Experiment No. 10 Basic ferric alkyl salicylates with an oxide basicity of 2260 ° / a were dissolved in technical grade xylene.

This solution was prepared as follows: 5 g of the pure alkyl salicylic acids were dissolved in 250 cc of technical grade xylene. Then were gradually stirring two different solutions added at the same time, namely a) 41.5 ccm of a 20 weight percent Solution of anhydrous ferric chloride in methanol and b) 34 ccm of a 4.69 N solution of sodium hydroxide in methanol.

This mixture was diluted with a further 150 cc of xylene and then Another 38.5 ccm of ferric chloride solution and 31.5 ccm of sodium hydroxide solution were added added in the manner described. The reaction mixture was finally centrifuged and removing the methanol from the solution by distillation. That way it was a solution of basic ferric alkyl salicylates with an oxide basicity of 2260% obtained in technical grade xylene.

The gelation time of this solution was 20 minutes. By previous addition of 27 percent by weight of methanol, based on the total solution, gelation could be prevented.

Experiment No. 11 Basic calcium alkyl salicylates with a carbonate basicity of 950% were in the medicinal paraffin oil already described in Example 1 solved.

This solution was made up as follows: 236 g of the crude alkyl salicylic acids were dissolved in 364 g of technical grade xylene and 300 g of ethanol were added to this solution and 208 g calcium hydroxide added. This mixture was heated to 60 ° C and then a stream of carbon dioxide was passed into the solution, with a total of 431 Carbon dioxide measured at 1 atmosphere pressure and temperature of 25 ° C, were used. The alcohol and that formed during the reaction Water was then distilled off and the remaining mixture filtered. To this Way became a solution of basic calcium alkyl salicylates with a carbonate basicity of 950% obtained in xylene. Medical paraffin oil then became this solution added and the xylene removed by distillation.

This solution showed no tendency to gel. Example II In this Examples are naphthenates and petroleum naphthenic acids with an acid number of 170 used. Experiment No. 1 Basic copper naphthenates with an oxide basicity of 1370% was dissolved in technical grade xylene.

This solution was prepared as follows: 25 g of the naphthenic acid were added dissolved in 550 g of technical grade xylene. This solution gradually became simultaneous two more solutions added, namely a) a 20 weight percent solution of anhydrous copper chloride in methanol, corresponding to a total of 87 g of the chloride, and b) a 4.42N solution of sodium hydroxide in methanol, accordingly a total of 47 g NaOH.

The greater part of the methanol was by means of distillation from the The reaction mixture was removed and the residue was centrifuged. The remaining Solution was in vacuo to remove residual methanol. of the water and part of the xylene distilled again. The remaining solution was again centrifuged and the remaining Xvlol removed therefrom by vacuum distillation. The solid residue consisted of basic copper naphthenates with an oxide basicity of 1370%, and this residue was then dissolved in technical grade xylene.

The gelation time of this solution was 1 hour. By a previous one Addition of 12 percent by weight of the corresponding free naphthenic acids, based on the amount of naphthenic acids present in the basic salt, a Gelation can be prevented.

Experiment No. 2 Basic copper naphthenates with an oxide basicity of 1370% were already in the medical test described in Experiment No. 1 of Example I. Dissolved paraffin oil.

The solution was prepared in the same way. like it im trying No. 1 of this example is described with the modification that the solid basic Salt is not dissolved in technical grade xylene, but in medical paraffin oil became.

The gelation time of this solution was 8 minutes. By a previous one Addition of 12 percent by weight of the corresponding free naphthenic acids, based on the amount of naphthenic acids present in the basic salt, a Gelation can be prevented. Example III In this example sulfonates of Petroleum sulfonic acids with an acid number of 129 are used.

Basic calcium petroleum @ sulfonate with a hydroxide basicity of 704% were in the medicinal paraffin oil already described in Experiment 1 of Example I. solved.

The solution was made up as follows: 5 g of the petroleum sulfonic acids were dissolved in 50 cc of isopropanol. 143 cc of a 0.4824N solution were added to this solution of calcium chloride in isopropanol and 124.3 cc of a 0.555N solution of sodium hydroxide added in isopropanol. The reaction mixture was then centrifuged and that Sediment was extracted with gasoline (boiling range between 60 and 80 ° C) and with xylene. These extracts were combined and the isopropanol and gasoline by distillation removed. This created a solution of basic calcium petroleum sulfonates obtained with a hydroxide basicity of 704% in technical grade xylene. This solution the medicinal oil was added and then the xylene was distilled severed.

The oil solution thus obtained showed no tendency to gel.

Claims (4)

PATENT CLAIM 1. Process for the production of with steam non-gelling solutions of oil-soluble basic salts of organic carbon or Sulphonic acid in a hydrocarbon oil, characterized in that one to the Solution of an oil-soluble basic salt of an organic carboxylic or sulfonic acid in a hydrocarbon oil, which gels with water vapor, an organic compound adds which is soluble in the hydrocarbon oil and which at least one contains polar group. 2. The method according to claim 1, characterized in that the organic compound to be added is a monohydric or polyhydric alcohol, an alkylamine, an alkylphenol, an alkylaromatic carboxylic or oxycarboxylic acid, a naphthenic acid, an aliphatic carboxylic acid, a sulfonic acid, phosphoric acid or their salts are used. 3. The method according to claim 1 and 2, characterized in that that the oil-soluble basic salt of the organic carboxylic acid has an oxide or hydroxide basicity of at least 300%, e.g. B. of 500 or 600%. 4. Modification of the procedure according to claim 1 to 3, characterized in that either the in soluble in hydrocarbon oil and at least one polar group containing compound and thereon the oil-soluble basic salt of the organic acid in the hydrocarbon oil dissolves or first the oil-soluble basic salt of the organic Acid having the group which is soluble in the hydrocarbon oil and has at least one polar group containing compound mixed and then this mixture in the hydrocarbon oil is resolved. Documents considered-: Australian Patent No. 154 686.