DE347154C - Process for decolorizing fluids containing glycerine or crude glycerine - Google Patents

Process for decolorizing fluids containing glycerine or crude glycerine

Info

Publication number
DE347154C
DE347154C DE1919347154D DE347154DD DE347154C DE 347154 C DE347154 C DE 347154C DE 1919347154 D DE1919347154 D DE 1919347154D DE 347154D D DE347154D D DE 347154DD DE 347154 C DE347154 C DE 347154C
Authority
DE
Germany
Prior art keywords
glycerine
decolorizing
fluids containing
crude
oxalic acid
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
DE1919347154D
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.)
ELEKTRO OSMOSE AG GRAF SCHWERIN GES
Original Assignee
ELEKTRO OSMOSE AG GRAF SCHWERIN GES
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 ELEKTRO OSMOSE AG GRAF SCHWERIN GES filed Critical ELEKTRO OSMOSE AG GRAF SCHWERIN GES
Application granted granted Critical
Publication of DE347154C publication Critical patent/DE347154C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D19/00—Recovery of glycerol from a saponification liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Entfärbung von glyzerinhaltigen Flüssigkeiten oder von Rohglyzerin. Bei der Glyzeringewinnung wird bekanntlich in der Weise vorgegangen, daß die glyzerin-und schwefelsäurehaltige Flüssigkeit zunächst mit Bariumkarbonat zwecks Ausfällung der Schwefelsäure behandelt und der Überschuß des Bariumsalzes dann mit Oxalsäure ausgefällt wird. Im Verlaufe dieses ganzen Prozesses ist keine Entfärbung des Glyzerins bemerkbar, diese muß viehmehr durch besondere adsorbierende Mittel, wie Kohle, herbeigeführt werden.Process for decolorizing liquids or fluids containing glycerine Raw glycerine. It is well known that glycerine production is carried out in the manner that the glycerine and sulfuric acid containing liquid initially with barium carbonate Treated for the purpose of precipitation of the sulfuric acid and the excess of the barium salt then precipitated with oxalic acid. In the course of this whole process there is none Discoloration of the glycerine noticeable, this must be due to special adsorbent Means, such as coal, are brought about.

Überraschenderweise hat sich nun gezeigt, daß, wenn man der schwefelsäurehaltigen Glyzerinlösung zuerst Oxalsäure und hierauf Bariumkarbonat zusetzt, neben der Ausfällung der Schwefelsäure bzw. des Bariumsalzes eine Entfärbung bis zu einem gewissen Grade eintritt. Eine starke bleichende Wirkung kann erfindungsgemäß auf Glyzerin ohne die üblichen adsorbierenden Mittel dadurch ausgeübt werden, daß die Oxalsäure in größerer Menge als für die Ausfällung des Bariumsalzes erforderlich, dem glyzerinhaltigen Wasser oder dem Rohglyzerin zugegeben wird. Es wurde beobachtet, daß auf diese einfache Weise eine fast augenblickliche Bleichung hervorgerufen wird. Zweckmäßig wird die Oxalsäure in Pulverform zugegeben.Surprisingly, it has now been shown that if you use the sulfuric acid Glycerine solution first oxalic acid and then barium carbonate added, in addition to the precipitation the sulfuric acid or the barium salt discoloration to a certain extent entry. A strong bleaching effect can according to the invention on glycerine without the usual adsorbent means are exercised in that the oxalic acid in larger amount than required for the precipitation of the barium salt, the glycerine-containing one Water or the raw glycerine is added. It has been observed to be simple on this Almost instantaneous bleaching. The Oxalic acid added in powder form.

Claims (1)

PATENTANSPRUCH: Verfahren zur Entfärbung von glyzerin.-haltigen Flüssigkeiten oder von Rohglyzerin, dadurch gekennzeichnet, daß Oxalsäure als entfärbendes Mittel verwendet wird.PATENT CLAIM: Process for decolorizing liquids containing glycerine or of crude glycerine, characterized in that oxalic acid is used as the decolorizing agent is used.
DE1919347154D 1919-02-13 1919-02-13 Process for decolorizing fluids containing glycerine or crude glycerine Expired DE347154C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE347154T 1919-02-13

Publications (1)

Publication Number Publication Date
DE347154C true DE347154C (en) 1922-01-12

Family

ID=6255913

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1919347154D Expired DE347154C (en) 1919-02-13 1919-02-13 Process for decolorizing fluids containing glycerine or crude glycerine

Country Status (2)

Country Link
DE (1) DE347154C (en)
GB (1) GB144727A (en)

Also Published As

Publication number Publication date
GB144727A (en) 1921-01-27

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