DE2033522A1 - Breaking oil and fat aq emulsions - using anion active neutral agent - Google Patents
Breaking oil and fat aq emulsions - using anion active neutral agentInfo
- Publication number
- DE2033522A1 DE2033522A1 DE19702033522 DE2033522A DE2033522A1 DE 2033522 A1 DE2033522 A1 DE 2033522A1 DE 19702033522 DE19702033522 DE 19702033522 DE 2033522 A DE2033522 A DE 2033522A DE 2033522 A1 DE2033522 A1 DE 2033522A1
- Authority
- DE
- Germany
- Prior art keywords
- substances
- fat
- agent
- emulsions
- wastewater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000839 emulsion Substances 0.000 title claims description 9
- 150000001450 anions Chemical class 0.000 title abstract 2
- 230000007935 neutral effect Effects 0.000 title description 4
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000002351 wastewater Substances 0.000 claims abstract description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 5
- 239000004094 surface-active agent Substances 0.000 claims abstract description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 4
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 4
- 235000014593 oils and fats Nutrition 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 238000005188 flotation Methods 0.000 claims abstract description 3
- 238000004062 sedimentation Methods 0.000 claims abstract description 3
- 239000000126 substance Substances 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000003995 emulsifying agent Substances 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 238000003776 cleavage reaction Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000007017 scission Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000013543 active substance Substances 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 claims description 2
- 238000005119 centrifugation Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 231100000719 pollutant Toxicity 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000005520 cutting process Methods 0.000 abstract description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002537 cosmetic Substances 0.000 abstract description 2
- 238000005238 degreasing Methods 0.000 abstract description 2
- 238000005555 metalworking Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract description 2
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 238000005202 decontamination Methods 0.000 abstract 1
- 230000003588 decontaminative effect Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000003541 multi-stage reaction Methods 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- -1 Kocks Substances 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 239000007900 aqueous suspension Substances 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 239000002734 clay mineral Substances 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 208000009043 Chemical Burns Diseases 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000001309 chloro group Chemical class Cl* 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- MSNWSDPPULHLDL-UHFFFAOYSA-K ferric hydroxide Chemical compound [OH-].[OH-].[OH-].[Fe+3] MSNWSDPPULHLDL-UHFFFAOYSA-K 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/04—Dewatering or demulsification of hydrocarbon oils with chemical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/04—Breaking emulsions
- B01D17/047—Breaking emulsions with separation aids
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Removal Of Specific Substances (AREA)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Description
Beschreibung der Erfindung: ttMittel zur Entfernung von emulgierten Ölen und Fetten sowie öl- und fettähnlichen Stoffen aus Abwässern bei Verwendung von anionenaktiven und/oder nichtionogenen Substanzen als Emulgatoren, Die Beschreibung der Erfindung: ~Mittel zur Entfernung von emulgierten Ölen aus Abwässern bei Verwendung von nichtionogenen Substanzen als Emulgatoren gern. Akz. P 2014 320.8 wird hier als bekannt vorausgesetzt.Description of the invention: ttmeans for removing emulsified Oils and fats as well as oil and fat-like substances from wastewater when used of anionic and / or nonionic substances as emulsifiers, The description of the invention: means for removing emulsified oils from wastewater when used of non-ionic substances as emulsifiers. Acc. P 2014 320.8 is here assumed to be known.
Das unter dem gen. Akz. beschriebene Mittel läßt sich jedoch nur im trockenen Zustand dem zu reinigenden Abwasser zudosieren, da bei vorhergehender Befeuchtung oder Lösung die die Spaltung der Emulsion und die Phasentrennung bewirkenden Umsetzung vorzeitig ablaufen wUrden. Ferner ist das beschriebene Mittel nur für Emulsionen mit nichtionogenem Charakter einsetzbar.That under the gen. Akz. However, the means described can only be used in add dry state to the wastewater to be cleaned, as with previous Moistening or solution that causes the emulsion to split and phase separation Implementation would expire ahead of schedule. Furthermore, the means described is only for Emulsions with a non-ionic character can be used.
Aufgabe der Zusatzerfindung ist es daher, ein Mittel zu schaffen, welches diesen Beschränkungen nicht unterworfen ist. Das erfindungsgemäße Mittel soll daher folgenden Anforderungen entsprechen: 1. L#'5 soll in sich selbst eine neutrale Reaktion aufweisen, um in dem zu behandelnden Abwasser keine wesentlichen Verschiebungen des pH-Wertes hervorzurufen.The task of the additional invention is therefore to create a means which is not subject to these restrictions. The agent according to the invention should therefore meet the following requirements: 1. L # '5 should in itself be a have neutral reaction to no essential in the wastewater to be treated Cause shifts in the pH value.
2. Es soll sowohl im teigigen Zustand wie auch als wässrige Suspension dosierbar sein. 2. It should be both in a doughy state and as an aqueous suspension be dosed.
3. Es soll sowohl Emulsionen mit anionenaktiven wie solche mit nichtionogenem Charakter bei Raumtemperatur gleich zuverlässig spalten und trennen. 3. There should be emulsions with anion-active as well as those with non-ionic Split and separate characters reliably at room temperature.
4. Es soll die die Verunreinigungen enthaltende Phase in einen Zustand versetzen, der ihre Abtrennung von der Klarwasserphase durch Sedimentation, Flotation, Zentrifugieren oder Filtrieren gestattet. 4. It should bring the phase containing the impurities into one state move, which allows their separation from the clear water phase by sedimentation, flotation, Centrifugation or filtration permitted.
Das erfindungsgemäße Mittel besteht aus einer kohlenstoffhaltigen Substanz, Calciumchlorid, Aluminiumhydroxid, Magnesiumhydroxid Eisen(III)hydoxid und einer oberflächenaktiven Substanz.The agent according to the invention consists of a carbon-containing one Substance, calcium chloride, aluminum hydroxide, magnesium hydroxide ferric oxide and a surfactant.
Ein Charakteristikum der Erfindung besteht darin, daß das erfindungsgemäße Mittel nicht durch einfache Vermischung der vor erwähnten Stoffe hergestellt wird, sondern durch einen stufen8 weisen Aufbau aus kohlenstoffhaltiger Substanz, ferner aus Substanzen, welche Aluminium, Magnesium und Eisen enthalten, aus Salzsäure bzw. einer salzsäurehaltigen Abfallsäure, und der geeigneten oberflächenaktiven Substanz.A characteristic of the invention is that the inventive Agent is not produced by simply mixing the aforementioned substances, but also through a step-by-step structure from carbonaceous substances from substances containing aluminum, magnesium and iron, from hydrochloric acid or a waste acid containing hydrochloric acid, and the suitable surface-active substance.
Als kohlenstoffhaltige Substanz kann Torf, Braunkohle, Steinkohle, Kocks, Ruß und dergleichen verwendet werden. Träger für Aluminium, Magnesium und Eisen sind Tone oder tonartige Mineralien, wie Bentonit, Bauxit, Montmorillonit usw.As a carbonaceous substance, peat, lignite, hard coal, Kocks, carbon black and the like can be used. Carrier for aluminum, magnesium and Iron are clays or clay-like minerals such as bentonite, bauxite, and montmorillonite etc.
Als oberflächenaktive Substanzen kommen vor allem Alkansulfonate, Olefinsulfonate und Phenylsulfonate in Frage.The main surface-active substances are alkane sulfonates, Olefinsulfonate and Phenylsulfonate in question.
Ausgehend von der bekannten Tatsache, daß sich chemische Reaktionen an Kohlenstoffoberflächen sehr intensiv abspielen, wird Tonmineral mit Kohlenstoff vermischt. Auf dieses Gemisch läßt man Salzsäure oder eine salzsäurehaltige Abfallsäure einwirken.Based on the known fact that there are chemical reactions Play very intensely on carbon surfaces, becomes clay mineral with carbon mixed. Hydrochloric acid or a waste acid containing hydrochloric acid is added to this mixture act.
Entsprechend der im Tonmineral enthaltenen Komponenten entstehen hierbei Aluminiumchlorid, Magnesiumchlorid, Eisen(III)chlorid.According to the components contained in the clay mineral are created here Aluminum chloride, magnesium chloride, ferric chloride.
Nach Ablauf dieser Reaktionen wird das jetzt sauer reagierende Kohlenstoff-/Chlordsalz-Gem.isch mit Calciumhydroxid auf pH 7 eingestellt. Dabei verdrängt das Calcium infolge seiner Stellung in der elektrochem. Spannungsreihe Aluminium, Magnesium und Eisen ausnihren Verbindungen; es bilden sich also Calciumchlorid, Magnesiumhydroxid, Eisen(III)hydroxid.After these reactions have elapsed, what is now reacting sour becomes Carbon / chlorine salt mixture adjusted to pH 7 with calcium hydroxide. As a result of this, the calcium displaces Position in the electrochem. Eliminate the tension series aluminum, magnesium and iron Links; so calcium chloride, magnesium hydroxide and iron (III) hydroxide are formed.
In diese jetzt neutral reagierende pastöse Masse wird die oberflächenaktive Substanz eingearbeitet, die ihren chemischen Charakter nach infolge aller bereits abgelaufenen möglichen Umsetzungen nicht mehr verändert wird.The surface-active substance becomes this paste-like mass, which now reacts neutrally Incorporated substance, which has its chemical character as a result of all already expired possible conversions is no longer changed.
Diese Art der Herstellung des erfindungsgemäßen Mittels besitzt den Vorzug, daß anstelle bereits aufbereiteter Chemikalieü billigste Ausgangsstoffe, teilweise sogar Abfallprodukte verwendet werden können. Ferner zeigt ein Gemisch aus den bei den einzelnen Reaktionen entstandenen Verbindungen bei Verwendung reiner Chemikalien eine wesentlich geringere Spalt- und Trennwirkung als das aus dem beschriebenen Wege hergestellte erfindungsgemäße Mittel.This type of production of the agent according to the invention has the Advantage that, instead of already processed chemicals, the cheapest raw materials, sometimes even waste products can be used. Also shows a mixture from the compounds formed in the individual reactions when using pure compounds Chemicals have a significantly lower splitting and separating effect than that from the one described Ways manufactured means according to the invention.
Infolge des geringen Anteils an kohlenstoffhaltiger Substanz im erfindungsgemäßen Mittel ist eine adsorptive Wirkung des Kohlenstoffes auf die im Abwasser enthaltenen Öl- oder Fettröpfchen mit Sicherheit auszuschließen; die Wirkung des Kohlenstoffes wird vielmehr darin gesehen, daß er eine bestimmte Komponente des erfindungsgemäßen Mittels an seiner Oberfläche anreichert, die dann infolge ihrer punktuellen Konzentration eine# starke Spaltwirkung auf die Emulsion ausgibt.As a result of the low proportion of carbonaceous substance in the invention Means is an adsorptive effect of the carbon on those contained in the wastewater To exclude oil or fat droplets with certainty; the effect of carbon is rather seen in the fact that he is a certain component of the invention Means enriched on its surface, which then as a result of their point concentration # has a strong splitting effect on the emulsion.
Im folgendm sei ein Beispiel für eine Formulierung des erfindungsgemäßen Mittels angegeben: Ruß 7,0 Gew. d# Bentonit 14,0 Ges. % Abfallsäure 60,0 Gew. ß Cacliumhydroxid 10,4 Gew. % Alkansulfonat 8,6 Gew. % Wegen der neutralen Reaktion des Spaltmittels läßt es sich vorteilhaft zur Vorreinigung cyanidischer Entfettungsbäder verwenden, bevor diese entgiftet werden, da im Gegensatz zur saueren Spaltung sich keine Cyanwasserstotfsäure bilden kann. Das Hauptanwendungsgebiet des erfindungsgemäßen Mittels ist jedoch die metallverarbeitende Industrie, wie Betriebe mit spangebender oder spanloser Fertigung, Blech- und Drahtwalzwerke, Röhrenwerke, Profilwalzwerke usw. Auch für die fetthaltigen Abwässer von Kosmetikfabriken ist das erfindungsgemäße Mittel einsetzbar.The following is an example of a formulation of the invention Means indicated: soot 7.0 wt. D # bentonite 14.0 total% waste acid 60.0 wt Calcium hydroxide 10.4% by weight alkanesulfonate 8.6% by weight Because of the neutral Reaction of the cleavage agent can be advantageous for the pre-cleaning of cyanide Use degreasing baths before detoxifying them, as in contrast to acidic baths No hydrocyanic acid can form during cleavage. The main area of application of the agent according to the invention, however, is the metalworking industry, such as Companies with cutting or non-cutting production, sheet and wire mills, tube mills, Profile rolling mills etc. Also for the fatty wastewater from cosmetic factories the agent according to the invention can be used.
Von besonde ren Vorteil ist jedoch seine Eigenschaft, auch nichtionogene Emulsionen zu spalten und zwar bei Raumtemperatur.Of particular advantage, however, is its property, including non-ionic To split emulsions at room temperature.
Die Spaltung derartiger Emulsionen gelang bisher nur, wenn das Abwasser auf 90 - 100o C erhitzt wurde, mit nachfolgender Zudosierung entsprechender Spaltmittel.The splitting of such emulsions has so far only succeeded if the wastewater was heated to 90 - 100o C, with subsequent metering of appropriate breakdown agents.
Weitere Vorteile des erfindungsgemäßen Mittels sind: Die Dosierung erfolgt entweder pastös oder als wässrige Suspension; dadurch entfällt für das Bedienungspersonal jede Staubgefahr. Infolge der neutralen Reaktion ist das Personal-auch gegen Verätzungen gesichert.Further advantages of the agent according to the invention are: The dosage takes place either pasty or as an aqueous suspension; this is not necessary for the operating personnel any dust hazard. As a result of the neutral reaction, the staff is also against chemical burns secured.
Das abfließende Klarwasser entspricht mit seinem Restgehalt an petrolätherlöslichen Stoffen den behördlichen Anforderungen. The clear water flowing off corresponds with its residual content of petroleum ether soluble Substances meet the official requirements.
Zur gleichzeitigen Neutralisation von extrem alkalischen Abwässern ist es möglich, dem Mittel an Ort und Stelle Säure in der erforderlichen Menge zuzusetzen. For the simultaneous neutralization of extremely alkaline wastewater it is possible to add acid in the required amount to the agent on the spot.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702033522 DE2033522A1 (en) | 1970-07-07 | 1970-07-07 | Breaking oil and fat aq emulsions - using anion active neutral agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702033522 DE2033522A1 (en) | 1970-07-07 | 1970-07-07 | Breaking oil and fat aq emulsions - using anion active neutral agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2033522A1 true DE2033522A1 (en) | 1972-01-20 |
Family
ID=5775977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702033522 Pending DE2033522A1 (en) | 1970-07-07 | 1970-07-07 | Breaking oil and fat aq emulsions - using anion active neutral agent |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2033522A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082867A (en) * | 1974-06-27 | 1978-04-04 | Amchem Products, Inc. | Oil emulsion removal and recovery of oil |
| US4136217A (en) * | 1977-01-27 | 1979-01-23 | Amchem Products | Removing oil emulsion from articles prior to coating articles and recovering oil from the emulsion |
| DE3418074A1 (en) * | 1984-05-16 | 1985-11-21 | Ralf F. Piepho Abwassertechnik Gmbh, 3015 Wennigsen | Process for the removal of hydrocarbons from water, in particular ground water |
| DE3632360A1 (en) * | 1986-09-24 | 1988-03-31 | Boelsing Friedrich | Process for the selective removal of contaminants from water |
-
1970
- 1970-07-07 DE DE19702033522 patent/DE2033522A1/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082867A (en) * | 1974-06-27 | 1978-04-04 | Amchem Products, Inc. | Oil emulsion removal and recovery of oil |
| US4136217A (en) * | 1977-01-27 | 1979-01-23 | Amchem Products | Removing oil emulsion from articles prior to coating articles and recovering oil from the emulsion |
| DE3418074A1 (en) * | 1984-05-16 | 1985-11-21 | Ralf F. Piepho Abwassertechnik Gmbh, 3015 Wennigsen | Process for the removal of hydrocarbons from water, in particular ground water |
| DE3632360A1 (en) * | 1986-09-24 | 1988-03-31 | Boelsing Friedrich | Process for the selective removal of contaminants from water |
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