DE664348C - Process for cleaning used lubricating oils, especially those from internal combustion engines - Google Patents

Process for cleaning used lubricating oils, especially those from internal combustion engines

Info

Publication number
DE664348C
DE664348C DEF79873D DEF0079873D DE664348C DE 664348 C DE664348 C DE 664348C DE F79873 D DEF79873 D DE F79873D DE F0079873 D DEF0079873 D DE F0079873D DE 664348 C DE664348 C DE 664348C
Authority
DE
Germany
Prior art keywords
internal combustion
combustion engines
lubricating oils
cleaning used
used lubricating
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.)
Expired
Application number
DEF79873D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PAUL VON FRANKENBERG FA
Original Assignee
PAUL VON FRANKENBERG FA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PAUL VON FRANKENBERG FA filed Critical PAUL VON FRANKENBERG FA
Priority to DEF79873D priority Critical patent/DE664348C/en
Application granted granted Critical
Publication of DE664348C publication Critical patent/DE664348C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
    • C10M175/0016—Working-up used lubricants to recover useful products ; Cleaning with the use of chemical agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Description

Verfahren zur Reinigung gebrauchter Schmieröle, insbesondere von solchen aus Verbrennungskraftmaschinen Die Erfindung betrifft ein Verfahren zur Reinigung gebrauchter Schmieröle, insbesondere von Schmierölen, wie sie in Verbrennungskraftmaschinen Anwendung finden. Es sind bereits Verfahren zur Reinigung von gebrauchten Ülen bekannt, die aber sehr teuer bzw. sehr verlustreich sind.Process for cleaning used lubricating oils, especially those from internal combustion engines The invention relates to a method for cleaning used lubricating oils, in particular lubricating oils such as those in internal combustion engines Find application. Processes for cleaning used oils are already known, but which are very expensive or very lossy.

So kennt man ein Verfahren, bei welchem dem ()I Natronlauge zugesetzt wird. Daraufhin wird das Öl durch Zentrifugalwirkung von den Verunreinigungen getrennt.A process is known in which sodium hydroxide solution is added to () I will. The oil is then separated from the impurities by centrifugal action.

Man kennt auch ein Verfahren, bei, welchem (las 01 mit Wasser behandelt wird, dem auch etwas Natronlauge zugesetzt wird. Ein derartiges Verfahren kann nur als Waschverfahren angesehen werden. Durch sich bildende hrnulsion tritt ein großer Verlust an Ölen auf.A process is also known in which (las 01 is treated with water to which a little sodium hydroxide solution is also added. Such a process can only be regarded as a washing process. A large loss of oils occurs as a result of the emulsion that forms.

Der Erfindungsgegenstand kennzeichnet sich demgegenüber darin, daß denÖlenAlkaliliydroxydlösungen zugesetzt werden. Vor dem Zusetzen dieser Lösungen' wird den Ölen Wasser bis etwa 8 Volumprozent beigemischt. Dabei bildet dieser geringe Prozentsatz an Wasser beim Zugeben der Alkalihydroxydlösungen den Träger für die sich ausscheidenden Fremdstoffe, wie beispielsweise Ülkohle u. dgl. Das Verfahren kennzeichnet sich daher darin, (laß unter gleichzeitigem Erhitzen den r*)len Wasser bis etwa 8 Volumprozent zugesetzt wird, worauf unter ständigem Rühren die Alkalihydrox3-dlösungen beigemischt erden. Die Menge der verwendeten Alkali- !i hydroxydlösungen ist etwa bis zu 5 Volumprozent. Im übrigen richten sich die genauen Mengen sowohl an Wasser als auch an Alkalihydroxydlösungen nach dem Verschmutzungsgrad des Schmieröles.In contrast, the subject matter of the invention is characterized in that Alkali hydroxide solutions are added to the oils. Before adding these solutions' the oils are mixed with water up to about 8 percent by volume. This forms little Percentage of water when adding the alkali hydroxide solutions to the carrier for the foreign matter precipitating out, such as oil coal and the like It is therefore characterized in that (while heating at the same time, let the r *) len water until about 8 percent by volume is added, whereupon the alkali hydroxide solutions are added with constant stirring ground mixed in. The amount of alkali! I hydroxide solutions used is about up to 5 percent by volume. In addition, the exact amounts depend on both water as well as alkali hydroxide solutions according to the degree of contamination of the lubricating oil.

Beispiel: rooo 1 Öl werden beispielsweise mit 301 Wasser vermengt. Das Ganze wird auf etwa 8o bis go° erhitzt. Daraufhin werden der Mischung etwa 301 25°/,ige Natronlauge unter ständigem Rühren beigemischt. Das Ganze läßt man dann absetzen. Die Fremdkörper, wie Kohle u. clgl., die mit dem Öl sich in einem emulgierten Zustand befinden, sind durch die Natronlauge frei geworden, haben das vorhandene Wasser an sich gerissen und sinken infolge dieser Beschwerung zu Boden, während das gereinigte Öl oben abgezogen werden kann.Example: rooo 1 oil is mixed with 301 water. The whole thing is heated to about 8o to go °. The mixture will then be about 301 25% sodium hydroxide solution added with constant stirring. The whole thing is then left drop. The foreign bodies, such as coal and the like, which emulsified with the oil in one State, have become free through the caustic soda, have the existing Water seized and sink as a result of this weighting to the ground while the cleaned oil can be drawn off at the top.

Claims (1)

PATENTANSPRUCH: Verfahren zur Reinigung gebrauchter Schmieröle, insbesondere von solchen aus Verbrennungskraftniaschinen, unter Zusatz von Alkalili@-droxycilöstingen und bei erhöhter Temperatur, dadurch gekennzeichnet, daß nian dem Altöl bis etwa S'Volumprozent Wasser und anschliel,Jend unter ständigemRühren bis etwa 5 Voluniprozent einer Alkaliliydroxycllöstuig von 25 °/, Alkaligehalt beimischt und (las gereinigte Ü1 von den Verunreinigungen trennt.PATENT CLAIM: Process for cleaning used lubricating oils, in particular of those from internal combustion engines, with the addition of Alkalili @ -droxycilöstingen and at elevated temperature, characterized in that nian the waste oil up to about S 'volume percent water and then, Jend with constant stirring up to about 5 volume percent an alkali hydroxyl solution of 25%, alkali content and (the cleaned Ü1 separates from the impurities.
DEF79873D 1935-08-27 1935-08-27 Process for cleaning used lubricating oils, especially those from internal combustion engines Expired DE664348C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF79873D DE664348C (en) 1935-08-27 1935-08-27 Process for cleaning used lubricating oils, especially those from internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF79873D DE664348C (en) 1935-08-27 1935-08-27 Process for cleaning used lubricating oils, especially those from internal combustion engines

Publications (1)

Publication Number Publication Date
DE664348C true DE664348C (en) 1938-08-25

Family

ID=7113357

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF79873D Expired DE664348C (en) 1935-08-27 1935-08-27 Process for cleaning used lubricating oils, especially those from internal combustion engines

Country Status (1)

Country Link
DE (1) DE664348C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821159A1 (en) * 1977-05-16 1978-12-21 Phillips Petroleum Co PROCESS FOR RECOVERING SUBSTANTLY ASH-FREE LUBRICATING OIL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821159A1 (en) * 1977-05-16 1978-12-21 Phillips Petroleum Co PROCESS FOR RECOVERING SUBSTANTLY ASH-FREE LUBRICATING OIL

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