AT104756B - Process for the recovery of hydrocarbons, namely paraffin and oils, from waste cleaning agents. - Google Patents

Process for the recovery of hydrocarbons, namely paraffin and oils, from waste cleaning agents.

Info

Publication number
AT104756B
AT104756B AT104756DA AT104756B AT 104756 B AT104756 B AT 104756B AT 104756D A AT104756D A AT 104756DA AT 104756 B AT104756 B AT 104756B
Authority
AT
Austria
Prior art keywords
recovery
oils
paraffin
hydrocarbons
cleaning agents
Prior art date
Application number
Other languages
German (de)
Inventor
Mieczyslav Ing Bomberg
Original Assignee
Mieczyslav Ing Bomberg
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 Mieczyslav Ing Bomberg filed Critical Mieczyslav Ing Bomberg
Application granted granted Critical
Publication of AT104756B publication Critical patent/AT104756B/en

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  • Fats And Perfumes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Detergent Compositions (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



   Die zum Reinigen und Bleichen von Kohlenwasserstoffen, namentlich Paraffin, Mineralölen usw. gebrauchten Mitteln, wie Silikaterden, Bleicherden, Knochenkohle u. dgl. absorbieren neben den Verunreinigungen auch grosse Mengen des zu reinigenden Stoffes. So enthalten z. B. die bei der Paraffinoder Ölreinigung entstehenden Abfallprodukte bis   70%   an reinem Paraffin oder Öl. Man hat zwar schon versucht, diese Stoffe wiederzugewinnen, indem man sie aus den Abfallprodukten mit den bekannten Lösungsmitteln extrahiert. Dieses Verfahren ist aber teuer und umständlich, da auch das verwendete 
 EMI1.2 
   auszuschmelzen,   wozu auch Wasser oder Wasserdampf und hoher Druck   benutzt wurden.

   Hiedurch   kann aber nur eine unvollkommene Wiedergewinnung der Paraffine oder Öle erzielt werden, da die Absorptionskraft der Bleicherde durch Wassereinwirkung unter selbst hohen Temperaturen   (180 )   und hohen Drucken (10   Atm.)   nicht oder nur unvollkommen überwunden wird. Die dabei ausgeschiedenen Harze und Farbstoffe werden ilberdies sogleich vom Paraffin oder Öl aufgenommen und können nur ausserordentlich schwer daraus wieder entfernt werden. 



   Gemäss der Erfindung wird nun die Absorptionskraft der Bleicherde vollständig überwunden und eine glatte Trennung von Reinigungsmittel und Kohlenwasserstoff bewirkt. Dies geschieht dadurch, dass das   Reinigungsmittel mit wässerigen Alkalilöbungen   einige Zeit unter Druck erwärmt wird. Hiebei 
 EMI1.3 
 Produkt ist wesentlich reiner, als das nach anderen Verfahren erhaltene, da die Harze und Farbstoffe in der Lauge bleiben und nicht in das Paraffin oder Öl gehen. Es kann natürlich in der üblichen Weise noch weiter raffiniert oder gebleicht werden. 



   Zur   Ausführung   des Verfahrens dient ein gewöhnlicher druckfester Kessel. Die Erwärmung kann durch direkte Beheizung oder durch Einleiten von Dampf erfolgen. 
 EMI1.4 
 diesem Druck acht Stunden gehalten. Nach Abkühlung desselben wird das Paraffin von der   Oberfläche     abgeschöpft.   Sein Gewicht beträgt   160 leg,   d. h. 32% vom Silikat. Da die   Rückstände   vor dem Entparaffinieren 36% Paraffin erhalten haben, so ist also die praktische Ausbeute an   rückgewonnenem   Paraffin   90%.   Das Produkt war gelb und konnte in üblicher Weise mit Schwefelsäure zu weissem Paraffin raffiniert werden. 



   Infolge der Einfachheit des Verfahrens und der verwendeten Apparatur, sowie auch infolge der Billigkeit der verwendeten Chemikalien und der grossen Ausbeute bedeutet das Verfahren einen grossen technischen und wirtschaftlichen Fortschritt. 



   Das Verfahren ist auch zur Wiedergewinnung von Fettsäuren und Wasser aus den Reinigungmitteln verwendbar, nur muss hiebei mit sehr schwachen Alkalien und geringem Druck gearbeitet werden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 
 EMI1.1
 



   The agents used for cleaning and bleaching hydrocarbons, namely paraffin, mineral oils, etc., such as silica earths, bleaching earths, bone carbon and the like. Like. In addition to the impurities, they also absorb large amounts of the substance to be cleaned. So contain z. B. the waste products from paraffin or oil cleaning up to 70% pure paraffin or oil. Attempts have already been made to recover these substances by extracting them from the waste products with known solvents. However, this process is expensive and cumbersome, since that is also used
 EMI1.2
   to melt out, for which water or steam and high pressure were used.

   In this way, however, only an imperfect recovery of the paraffins or oils can be achieved, since the absorption power of bleaching earth is not or only imperfectly overcome by the action of water under even high temperatures (180) and high pressures (10 atm. The resins and dyes which are separated out are also immediately absorbed by the paraffin or oil and are extremely difficult to remove from them.



   According to the invention, the absorption power of the bleaching earth is now completely overcome and a smooth separation of cleaning agent and hydrocarbon is effected. This is done by heating the cleaning agent with watery alkali buffers under pressure for some time. At that
 EMI1.3
 The product is much purer than that obtained by other processes, since the resins and colorants remain in the lye and do not go into the paraffin or oil. It can of course be further refined or bleached in the usual way.



   An ordinary pressure-tight boiler is used to carry out the process. The heating can be done by direct heating or by introducing steam.
 EMI1.4
 held this pressure for eight hours. After it has cooled down, the paraffin is skimmed off the surface. Its weight is 160 leg, i.e. H. 32% of the silicate. Since the residues received 36% paraffin prior to dewaxing, the practical yield of paraffin recovered is 90%. The product was yellow and could be refined to white paraffin in the usual way with sulfuric acid.



   As a result of the simplicity of the process and the equipment used, as well as the cheapness of the chemicals used and the high yield, the process represents a great technical and economic advance.



   The process can also be used for the recovery of fatty acids and water from the cleaning agents, only very weak alkalis and low pressure have to be used.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Wiedergewinnung von Kohlenwasserstoffen, namentlich Paraffin und Ölen, ferner Fettsäuren und Wachsen aus den Abfallreinigungsmitteln durch Einwirkung von Druck und Wasser unter erhöhter Temperatur, dadurch gekennzeichnet, dass bei der Druckkoehung ein Zusatz von Alkalien verwendet wird, wobei bei Gegenwart von verseifbaren Substanzen nur sehr geringe, zur Verseifung nicht ausreichende Mengen von Alkali verwendet werden. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the recovery of hydrocarbons, namely paraffin and oils, also fatty acids and waxes from the waste cleaning agents by the action of pressure and water at elevated temperature, characterized in that an addition of alkalis is used in the pressure boil, whereby in the presence of saponifiable substances only very much small amounts of alkali which are not sufficient for saponification are used. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT104756D 1925-05-14 1925-05-14 Process for the recovery of hydrocarbons, namely paraffin and oils, from waste cleaning agents. AT104756B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT104756T 1925-05-14

Publications (1)

Publication Number Publication Date
AT104756B true AT104756B (en) 1926-11-25

Family

ID=3622589

Family Applications (1)

Application Number Title Priority Date Filing Date
AT104756D AT104756B (en) 1925-05-14 1925-05-14 Process for the recovery of hydrocarbons, namely paraffin and oils, from waste cleaning agents.

Country Status (1)

Country Link
AT (1) AT104756B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942654C (en) * 1952-05-29 1956-05-03 Pintsch Oel G M B H Process for the treatment of bleaching earth containing mineral oils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942654C (en) * 1952-05-29 1956-05-03 Pintsch Oel G M B H Process for the treatment of bleaching earth containing mineral oils

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