DE19721602A1 - Paste or gel-like high concentrate for amine-containing lubricant solutions in the food industry - Google Patents

Abstract

The invention relates to a highly concentrated paste or gel-like substance for lubricating solutions containing amine, for use as chain lubricants in the foodstuff industry. The inventive concentrate contains at least 30 weight percent of one or several alkylamine compounds. The invention also relates to the production of said concentrate and the use thereof to produce an aqueous lubricating solution for lubricating conveyor belts in the foodstuff industry.

Description

The present invention relates to a paste-like or gel-like high concentrate for an aqueous lubricant solution based on fatty amines.

The invention further relates to a method for producing the high concentrate as well as its use as an aqueous lubricant solution Chain lubricant in the food industry. In particular, it is used for lubricating, cleaning and disinfecting automatic chains and belts lubrication systems used in the filling of food, preferably beverages, in Glass and plastic bottles, cans, glasses, barrels, beverage containers (KEG), Paper and cardboard containers and the like can be used.

In bottle cellars and barrel cellars of beverage companies as well as during bottling of food are used for the transport of the appropriate vessels Usually used plate conveyor belts or other conveyor systems with suitable aqueous lubricant preparations via splash lubrication systems or lubricated and kept clean using automatic belt lubrication systems.

During dip lubrication systems hardly any problems with regard to the users the technical properties in the selection of the lubricant Precipitation of sparingly soluble salts and microbiological deposits that occur in the Nozzles and filters of the central lubrication systems the continuous operation of the  The filling of foodstuffs, especially beverages, can be considerably disruptive, so that the systems are switched off and cleaned after a certain period of operation Need to become.

In addition to soap-based lubricants, mainly lubricants are currently used Base of fatty amines used. DE-A-36 31 953 describes a method for lubricating chain - shaped bottle conveyor belts in Beverage filling companies, especially in breweries, as well as for cleaning the Belts by means of a liquid detergent, which is characterized in that the chain-shaped bottle conveyor belts with belt lubricants Base of neutralized primary fatty amines, which preferably have 12 to 18 carbon atoms have and contain an unsaturated content of more than 10%, lubricates.

From EP-A-0 372 628 are fatty amine derivatives of the formulas

known as a lubricant, wherein
R ^{1 is} a saturated or unsaturated, branched or linear alkyl group with 8 to 22 C atoms;
R ^{2 is} hydrogen; an alkyl or hydroxyalkyl group with 1 to 4 carbon atoms or -A-NH ₂ ;
A is a linear or branched alkylene group with 1 to 8 carbon atoms; and
A ^{1 represents} a linear or branched alkylene group with 2 to 4 carbon atoms.

In addition, DB-A-39 05 548 lubricants based on N- alkylated fatty amine derivatives known to have at least one secondary and / or contain tertiary amine.

DE-A-42 06 506 discloses:
Soap-free lubricants based on amphoteric compounds, primary secondary and / or tertiary amines and / or salts of such amines of the general formula (I), (IIa), (IIb), (IIIa), (IIIb), (IIIc), ( IVa) and (IVb)

in which
R is a saturated or mono- or polyunsaturated, linear or branched alkyl radical having 6 to 22 carbon atoms, which may be replaced by -OH, -NH ₂ , -NH-, -CO-, - (CH ₂ CH ₂ O) ₁ - or - (CH ₂ CH ₂ CH ₂ O) ₁ - may be substituted,
R ¹ for hydrogen; an alkyl radical with 1 to 4 carbon atoms, a hydroxyalkyl radical with 1 to 4 carbon atoms or a radical -R ³ COOM
R ² only if M represents a negative charge for hydrogen; an alkyl radical with 1 to 4 carbon atoms, or a hydroxyalkyl radical with 1 to 4 carbon atoms,
R ^{3 is} a saturated or mono- or polyunsaturated, linear or branched alkyl radical having 1 to 12 carbon atoms, which is optionally replaced by -OH, -NH ₂ , -NH-, -CO-, - (CH ₂ CH ₂ O) ₁ - or - (CH ₂ CH ₂ CH ₂ O) ₁ - may be substituted,
R ^{4 represents} a substituted or unsubstituted, linear or branched, saturated or mono- or polyunsaturated alkyl radical having 6 to 22 carbon atoms, which may have at least one amine, imine, hydroxyl, halogen and / or carboxy radical as substituent,
a substituted or unsubstituted phenyl radical which may have at least one amine, imine, hydroxyl, halogen, carboxy and / or a linear or branched, saturated or mono- or polyunsaturated alkyl radical with 6 to 22 C atoms as substituents,
R ⁵ for hydrogen or - independently of R ⁴ - for a radical R ⁴ ,
X⁻ is an anion from the group amidosulfonate, nitrate, halide, sulfate, hydrogen carbonate, carbonate, phosphate or R ⁶ -COO⁻, wherein
R ⁶ for hydrogen; a substituted or unsubstituted, linear or branched alkyl radical having 1 to 20 carbon atoms or alkenyl radical having 2 to 20 carbon atoms, which may have at least one hydroxyl, amine or imine radical as a substituent, or a substituted or unsubstituted phenyl radical, the may have as substituents an alkyl radical having 1 to 20 carbon atoms, and
R ⁷ and R ⁸ each independently represent a substituted or unsubstituted, linear or branched alkyl radical having 1 to 20 C atoms or alkenyl radical having 2 to 20 C atoms, which are at least as substituents
may have a hydroxyl, amine or imine residue, or
a substituted or unsubstituted phenyl radical, which may have an alkyl radical with 1 to 20 C atoms as substituents,
M for hydrogen; Alkali metal, ammonium, an alkyl radical with 1 to 4 carbon atoms, a benzyl radical or a negative charge,
n for an integer in the range from 1 to 12,
m for an integer ranging from 0 to 5 and
l for a number in the range from 0 to 5
stands,
containing alkyldimethylamine oxides and / or alkyl oligoglycosides as nonionic surfactants.

EP-B-629 234 discloses a lubricant combination consisting of

• a) one or more compounds of the formula
  in which
  R ^{1 represents} a saturated or mono- or polyunsaturated, linear or branched alkyl radical having 6 to 22 carbon atoms, which may optionally be substituted by -OH, -NH ₂ , -NH-, -CO-, halogen or a carboxyl radical,
  R ^{2 represents} a carboxyl radical with 2 to 7 C atoms,
  M represents hydrogen, alkali metal, ammonium, an alkyl radical with 1 to 4 carbon atoms or a benzyl radical and
  n stands for an integer in the range from 1 to 6,
• b) at least one organic carboxylic acid selected from single-base or multi-base, saturated or single or multiple unsaturated carboxylic acids with 2 to 22 carbon atoms,
• c) optionally water and additives and / or auxiliaries.

WO 94/03 562 describes a lubricant concentrate based on fatty amines and, if appropriate, customary diluents or auxiliaries or additives, characterized in that it is at least one polyamine derivative of a fatty amine and / or a salt of such an amine, the proportion of said Polyamine derivatives of fatty amines on the total formulation 1 to 100% by weight is.  

According to a preferred embodiment of WO 94/03562, this lubricant concentrate contains at least one polyamine derivative of a fatty amine of the general formula

RA- (CH ₂ ) _k -NH - [(CH ₂ ) ₁ -NH] _y - (CH ₂ ) _m -NH _2. (H⁺X⁻) _n

in which
R is a substituted or unsubstituted, linear or branched, saturated or mono- or polyunsaturated alkyl radical having 6 to 22 carbon atoms, the substituents being selected from amino, imino, hydroxy, halogen and carboxy, or
a substituted or unsubstituted phenyl radical, the substituents being selected from amino, imino, hydroxyl, halogen, carboxy and a linear or branched, saturated or mono- or polyunsaturated alkyl radical having 6 to 22 C atoms;
A represents either -NH- or -O-,
X⁻ represents an anion of an inorganic or organic acid,
k, l, m is independently an integer ranging from 1 to 6;
y in the case of A = -NH- 0, 1, 2 or 3 and
in the case A = -O- 1, 2, 3 or 4,
n is an integer from 0 to 6.

In the documents referenced above, different classes of Described alkylamine derivatives, which as a lubricating component in soap-free belt lubricants are suitable. Some of these documents state that the amine component in the lubricant concentrates in one Concentration range up to 100 wt .-% can be present. In the However, no lubricant concentrates are specified in exemplary embodiments, which contain more than 40% by weight of the amine component. According to the  Product descriptions make these lubricant concentrates clear aqueous Solutions that are dynamic, for example according to EP-B-629 234 Have a viscosity of less than 300 mPas. The preliminary literature does not contain any Pointing out; amine-based lubricant concentrates in paste or gel form a proportion by weight of amine compounds or amine salts of more than 40 % By weight. Furthermore, the preliminary literature contains no indication that how such concentrate pastes can be produced.

The object of the present invention is to provide lubricant concentrates for Lubricant solutions containing amine as chain lubricants in the Food industry in the form of paste-like or gel-like high concentrates for To provide the amine or amine salt by weight have at least 30% by weight. Such high concentrates have according to the Liquid-aqueous concentrates of the prior art have the advantage that essential less water has to be transported and thus the transport effort sinks. This brings economic and ecological advantages.

The present invention accordingly relates to a pasty or gel-like high concentrate for amine-containing lubricant solutions as chain lubricants in the food industry, containing at least 30% by weight of one or more alkylamine compounds selected from the groups

where the radicals R each denote:
a linear or branched, saturated or mono- or polyunsaturated alkyl radical with 12 to 22 carbon atoms,
X⁻ is an equivalent of an anion from the group amidosulfonate, nitrate, halide, sulfate, hydrogen carbonate, carbonate, phosphate or carboxylate,
m, p, r, y independently of one another an integer in the range from 1 to 6 and
n represents an integer in the range of 1 to 2 + y
and M represents hydrogen or an alkali metal ion.

The paste-like or gel-like high concentrates preferably contain at least 40% by weight of one or more alkylamine compounds from groups A) to E).

The alkylamine compounds which can be used for the purposes of this invention are all known in the art as components of lubricant solutions, such as emerges from the literature cited in the introduction. In the above general formulas 1 to 3 come as substituents R the following radicals in question: n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl, n-undecyl, n-dodecyl, n- Tridecyl, n-tetradecyl, n-pentadecyl, n-hexadecyl, n-heptadecyl, n-octadecyl, n- Nonadecyl, n-eicosyl, n-uneicosyl and n-docosyl as well as the branched chains Isomers of the alkyl radicals mentioned. Instead of the saturated alkyl radicals, R can also the corresponding - mono- or poly-unsaturated alkyl radicals mean the can also be linear or branched. The residues listed above can also be substituted, one or more amine, Imine, hydroxyl, halogen or carboxy groups come into question.

In the formulas, r and m preferably independently represent one another Numbers 2 or 3. In formulas 1a, 1b, 1c, 2a, 2b and 4b are for r and / or m values of 3 preferred, i. H. alkylamine derivatives are preferably used Propylene groups. The index p is preferably 1 or 2, so that it is the amines are acetates or propionates. P is in formulas 3a and 3b preferably for 2, in formulas 4a and 4b preferably for 1.

In the formulas 2a and 2b, y preferably denotes 1, 2 or 3. Accordingly, Triamines (y = 1), tetraamines (y = 2) and pentaamines (y = 3) are particularly preferred.  

Since the lubricant concentrates are preferably adjusted so that they have a pH of about 4 to about 8, preferably from about 5 to about 7 and in particular in the range around 6.5 after the required dilution with water to the application concentration, the alkylamine compounds are used preferably at least partially in salt form. Carboxylate ions are preferably chosen as the associated anions. Carboxylate anions R ¹ -COO are preferred, the radical R ¹ representing H, CH ₃ , C ₂ H ₅ , CH ₂ (OH), CH ₃ CH ₂ (OH), CO (OH) or a group such that H ⁺X⁻ represents malic acid, tartaric acid, citric acid or an acid from the group HOOC- (CH ₂ ) _2/3/4 -COOH. Acetations are particularly preferred.

If desired, in addition to the alkylamine compounds or their salts, the paste-like or gel-like high concentrates can additionally contain a total of about 0.1 to about 15% by weight of sodium and / or potassium salts of carboxylic acids, preferably of carboxylic acids R ¹ -COOH, where R ^{1 is} the has the last meaning given above. The presence of such sodium and / or potassium salts in the lubricant solutions to be prepared from the high concentrates by dilution with water has the advantage that the active substance concentration in the application solutions can be controlled and adjusted by the increased electrical conductivity of the application solutions due to the addition of salt. However, the use of such sodium and / or potassium salts can also bring technical advantages in the preparation of paste-like or gel-type high concentrates by first processing alkylamine derivatives with sodium and / or potassium hydroxide into a homogeneous mass, into which one then, if necessary After adding further alkylamine compounds, the desired amount of acid is incorporated.

For the intended use of the paste-like or gel-like high concentrates As a belt lubricant, it may be sufficient if these concentrates are only one  contain only alkylamine derivative from groups A) to E). Preferably however, mixtures of alkylamine derivatives, for example those of various groups A), B) and C) used. There are high concentrates particularly preferred which is a mixture of alkylamine derivatives of groups B) and C) included.

As auxiliaries and / or additives according to the present invention in particular nonionic and / or amphoteric surfactants, for example alkoxylated fatty amines, fatty alcohols and alkoxylated fatty alcohols. These surfactants can improve the wetting of the chains and plate conveyor belts if this should be necessary in individual cases. In general, surfactant additives Range from 0.1 to 15% by weight, based on the total formulation, for this sufficient.

The invention also relates to a method for producing the lubricant concentrates according to the invention. The procedure depends in detail on whether the alkylamine derivatives to be used are available in highly concentrated form or as pure substances or whether they are only available in the form of aqueous solutions. This also depends on whether the additional use of sodium and / or potassium hydroxide is used in the form of an aqueous alkali metal hydroxide solution or in the form of NaOH or KOH granules. If the alkylamine derivative is in the form of an aqueous solution, NaOH or KOH is preferably used in solid form in order not to unnecessarily increase the water content of the mixture. Conversely, when using pure or highly concentrated alkylamine derivatives, NaOH or KOH in the form of aqueous alkali metal hydroxide solution may be useful in order to obtain a paste-like or gel-like consistency of the end product. For example, you can do the following:

• a) The alkylamine derivative or the alkylamine derivatives are added as an aqueous solution or as a melt in one - preheated if necessary when using a melt
• - Kneader or a similar mechanical mixing unit.
• b) If you are aiming for a sodium and / or potassium salt-containing end product, it is advantageous as the next component sodium and / or potassium hydroxide Add aqueous solution or as a solid and mix through Knead at a temperature between about room temperature and about 60 ° C homogenize.
• c) If the alkylamine derivative and / or the sodium and / or potassium hydroxide as aqueous solution was used and thereby a water content is present which the formation of a final product containing an alkylamine derivative or whose salts would prevent more than 40% by weight are steamed Now - preferably with the application of negative pressure - water so far that after Add the remaining components to the desired final concentration can be.
• d) As the next component, the acid HX is added at least in an amount which is sufficient to add sodium and / or potassium hydroxide neutralize. The alkylamine derivatives are added by further acid addition desired extent to their salts. Do you work without sodium and / or Potassium hydroxide, the acid addition is used directly to form the amine salts. Regardless of the total amount of acid to be added, you control the Acid addition preferably so that the temperature of the reaction mixture by the heat of neutralization does not rise above about 60 ° C. Does that Mixing unit via a cooling device, the acid can under Temperature control can be added relatively quickly. You work without external cooling, the acid is added in portions and the Reaction mixture with continued stirring between each Cool the addition of acid.  
• e) After the acid addition has ended, the mixture is kneaded in a Temperature in the range between about 15 and about 60 ° C until one uniform paste is created. An external temperature control is for this no longer required, so that in the course of this final kneading Reaction mixture adopts room temperature.

If it is desired to prepare a paste-like or gel-type high concentrate which contains one or more alkylamine derivatives from group C) together with those from groups A) and / or B), the procedure is preferably as follows:

• a) The alkylamine or derivatives from group C) are added as an aqueous solution or as a melt in a kneader.
• b) In the presence of sodium and / or potassium salts in the end product is desired, KOH is now added as described above and homogenized.
• c) The mixture with the alkylamine derivative (s) is then added of groups A) and / or B).
• d) As described above, if necessary, water is now steamed until Reaching the desired final concentration.

Now you move as described in the first procedure under d) and e) the reaction mixture with the acid and homogenized until obtaining one uniform paste.

Furthermore, the invention relates to the use of the paste or gel-like high concentrate for the production of an aqueous lubricant solution for lubricating conveyor belts in the food industry Transport of containers or bottles made of glass, plastic-coated glass,  Plastics, in particular polyethylene terephthalate, polycarbonate, polypropylene, Polyethylene naphthalate or polyvinyl chloride, tinplate or aluminum or of painted or plastic-coated containers made of these metals. Here the paste-like or gel-like high concentrates with water on the for Tape lubricant solutions based on amine usual application concentrations be diluted. The amine concentration required on the conveyor belt to adjust, this requires a total dilution with water by a factor between about 1000 and about 10,000. As a rule, the concentrate paste can not apply directly to the conveyor belt, it is recommended to use it one or two-stage application concentration from about 0.002 to about 0.1 % By weight, in particular from about 0.003 to about 0.05% by weight, of alkylamine derivatives to dilute. If you work in two stages, you preferably move to a first Step the pasty or gel-like high concentrate with so much water that one aqueous solution containing alkylamine derivative or its salts in Range from about 1 to about 40% by weight, preferably from about 5 to about 20 % By weight arises. This prediluted solution then has approximately one Concentration of the alkylamine derivatives on; as in the currently commercially available aqueous tape lubricants ("concentrates") are common. These solutions can then, as usual, via automatic belt lubrication systems Conveyor belts are applied, with further water on the Final concentration can be diluted. In this final concentration, the Application solutions preferably contain alkylamine derivatives or whose salts range from about 0.002 to about 0.1% by weight, especially in the Range from about 0.003 to about 0.05% by weight.

If you choose a two-stage dilution, you can for the first Dilution step, put the paste or gel in a mixing vessel, which is mixed with a Stirring device is provided and that required for the first dilution Contains a lot of water. The paste or gel can be added manually  Scooping out of a transport bucket or a transport barrel, preferably however, automatically by pressing the paste or gel out of the Transport containers are made. Alternatively, you can by injecting Water in the transport container is an aqueous solution of the paste or gel Highly concentrated from initially unknown concentration from the Rinse out the transport container. With a sodium and / or potassium salt Product can be the one desired after the first dilution step Adjust the active ingredient concentration using the electrical conductivity. Here The target conductivities are approximately in the range of 0.01 to 10 mS / cm. Values above this require further dilution with water, including below Concentrate values by further entry of concentrate.

Examples for the production of high concentrates according to the invention

The following chemicals were used

1. Amines "Genamin LA 302 D"

• - Commercial product from Hoechst
• - Nomenclature: dimethyl laurylamine
• - Chemical formula: RN (CH ₃ ) ₂ (C ₁₂ : 70%; C ₁₄ : 25%; C ₁₆ : 5%)
• - Classification: monoamine
• - Active substance content: 99%

"Duomeen O" (commercial product from Akzo)

Nomenclature: N-oleyl-1,3-diaminopropane
Chemical formula: R-NH- (CH ₂

) ₃

-NH _2nd

; (-R = -C ₁₄

: 4%; -C ₁₆

: 12%; -C ₁₈

: 82% classification: diamine
Active substance content: 100%

"Amine 640" (or "Triameen OV") (commercial product from Akzo)

Nomenclature: N-oleylalkyldipropylenetriamine
Chemical formula: R-NH- (CH ₂

) ₃

-NH- (CH ₂

) ₃

-NH _2nd

; (-R = -C _{≦ 16}

: 10%; -C ₁₈

: 88%; -C _{≧ 20}

: 2%)
Classification: triamin
Active substance content: 100%

"Amine 740" (or "Tetrameen OV")

• - Commercial product from Akzo
• - Nomenclature: oleyl tripropylene tetraamine
• - Chemical formula: R- [NH- (CH ₂ ) ₃ ] ₃ -NH ₂ (C _{≦ 16} : 10%; C ₁₈ : 88%)
• - Classification: tetraamine
• - Active substance content: 100%

2. Amphoteric surfactant "Deriphat 160 C" (commercial product from Henkel KGaA)

Nomenclature: Monosodium N-lauryl-β-iminodipropionate
Chemical formula: RN (-CH ₂

-CH ₂

-COOH) -CH ₂

-CH ₂

-COO] ⁻ Na⁺ (-R = -C ₁₂

)
Classification: amphoteric surfactant
Active substance content: 100%

3. Acid components

Acetic acid, 60%
Chemical formula: CH ₃

-COOH

Glacial acetic acid, 100%
Chemical formula: CH ₃ -COOH

Formic acid, 85%
Chemical formula: H-COOH

Glycolic acid, 60%
Chemical formula: CH ₂ (OH) -COOH

Lactic acid, 80%
Chemical formula: CH ₃ -CH (OH) -COOH

Oxalic acid, 71%
Chemical formula: HOOC-COOH

4. Basic components

Sodium and / or potassium hydroxide, 45%
Chemical formula: NaOH, KOH
Sodium and / or potassium hydroxide, 85% (s)
Chemical formula: NaOH, KOH

example 1

110.0 g of amines 640 were placed in a kneader and 52.8 g of glacial acetic acid transferred. Kneading without temperature control gave a homogeneous, well kneadable mass of the practically anhydrous amine acetate with a viscous paste Consistency.

Examples 2 to 4

Paste or gel-like high concentrates of the following composition were produced in a kneader

The procedure was as follows: In the kneader, as far as in the Mixture desired, first the water, then the respective solution of the Amphoteric surfactant Deriphat 160 C and then specified the potassium hydroxide. The Mixture was heated to 40 to 50 ° C and homogenized by kneading. At Example 4, 6% by weight of water, based on the end product, was then evaporated. The further amine components were then added and the mixture homogenized by kneading. After that, the acid was under temperature control added in portions so that the temperature of the mixture is not 60 ° C exceeded. After the acid addition had ended, a pasty mixture was obtained Knead further.

Instead of acetic acid - if necessary by adjusting the water addition - can also other carboxylic acids such as formic acid, glycolic acid, lactic acid,  Oxalic acid and mixtures thereof with one another or with acetic acid are used will.

Claims (12)

1. Paste-like or gel-like high concentrate for amine-containing lubricant solutions as chain lubricants in the food industry, containing at least 30% by weight of one or more alkylamine compounds, selected from the groups
where the radicals R each denote:
a linear or branched, saturated or mono- or polyunsaturated alkyl radical with 12 to 22 carbon atoms,
X represents an equivalent of an anion from the group amidosulfonate, nitrate, halide, sulfate, hydrogen carbonate, carbonate, phosphate or carboxylate,
m, p, r, y independently of one another an integer in the range from 1 to 6 and
n represents an integer in the range of 1 to 2 + y
and M represents hydrogen or an alkali metal ion. 2. Concentrate according to claim 1, characterized in that r and m independently from each other 2 or 3 mean. 3. Concentrate according to one or both of claims 1 and 2, characterized characterized in that y is 1, 2 or 3. 4. Concentrate according to one or more of claims 1 to 3, characterized characterized in that p means 1 or 2. 5. Concentrate according to one or more of claims 1 to 4, characterized in that X is a carboxylate anion R ¹ -COO-, the radical R ^{1 being} H, CH ₃ , C ₂ H ₅ , CH ₂ (OH), CH ₃ CH ₂ (OH), CO (OH) or for such a group that H⁺X⁻ represents malic acid, tartaric acid, citric acid or an acid from the group HOOC- (CH ₂ ) _2/3/4 -COOH. 6. Concentrate according to one or more of claims 1 to 5, characterized characterized in that it is at least 40% by weight of one or more Contains alkylamine compounds selected from groups A) to E). 7. Concentrate according to one or more of claims 1 to 6, characterized characterized in that it additionally 0.1 to 15 wt .-% sodium and / or Contains potassium salts of carboxylic acids. 8. Concentrate according to one or more of claims 1 to 7, characterized characterized in that it is a mixture of alkylamine derivatives of groups B) and C) contains. 9. Concentrate according to one or more of claims 1 to 7, characterized characterized in that it is a mixture of alkylamine derivatives of groups A), B) and C) contains. 10. A process for the preparation of the pasty or gel-like concentrates according to one or more of claims 1 to 7, characterized in that

• a) adding the alkylamine derivative (s) as an aqueous solution or as a melt to a suitable mixing device,
• b) if desired, sodium and / or potassium hydroxide is added as an aqueous solution or as a solid and the mixture is homogenized,
• c) if necessary, water evaporates until the desired final concentration is reached,
• d) the acid HX in an amount sufficient to neutralize the sodium and / or potassium hydroxide present and to convert the alkylamine derivatives at least partially into the protonated form, so that the temperature of the mixture does not rise above 60 ° C. and
• e) the mixture is kneaded at a temperature between 15 and 60 ° C until a uniform paste or gel has formed.

11. A process for the preparation of the pasty or gel-like concentrates according to claim 8 or 9, characterized in that

• a) the alkylamine derivative (s) from group C) is given as an aqueous solution or as a melt in a suitable mixing device,
• b) if desired, sodium and / or potassium hydroxide is added as an aqueous solution or as a solid and the mixture is homogenized,
• c) the alkylamine or derivatives of groups A) and / or B) are added
• d) if necessary, water evaporates until the desired final concentration is reached,
• e) the acid HX in an amount sufficient to neutralize the sodium and / or potassium hydroxide present and to convert the alkylamine derivatives at least into the simply protonated form, so that the temperature of the mixture does not rise above 60 ° C. and
• f) the mixture is kneaded at a temperature between 15 and 60 ° C until a uniform paste or gel has formed.

12. Use of a paste or gel concentrate according to one or several of claims 1 to 9 for the preparation of an aqueous Lubricant solution for lubricating conveyor belts in the Food industry used to transport glass containers or bottles, plastic-coated glass, plastics, in particular Polyethylene terephthalate, polycarbonate, polypropylene, polyethylene naphthalate or Polyvinyl chloride, tinplate or aluminum or of painted or  serve plastic-coated containers made of these metals, thereby characterized in that the concentrate before or when applied to the Conveyor belt diluted with water in total by a factor of 1000 to 10,000.