AT88352B - Process for the production of tanning agent from sulphite cellulose waste liquors. - Google Patents

Process for the production of tanning agent from sulphite cellulose waste liquors.

Info

Publication number
AT88352B
AT88352B AT88352DA AT88352B AT 88352 B AT88352 B AT 88352B AT 88352D A AT88352D A AT 88352DA AT 88352 B AT88352 B AT 88352B
Authority
AT
Austria
Prior art keywords
production
tanning agent
waste liquors
cellulose waste
sulphite cellulose
Prior art date
Application number
Other languages
German (de)
Original Assignee
Deutsch Koloniale Gerb & Farbs
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 Deutsch Koloniale Gerb & Farbs filed Critical Deutsch Koloniale Gerb & Farbs
Application granted granted Critical
Publication of AT88352B publication Critical patent/AT88352B/en

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  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

  

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  Verfahren zur Herstellung von Gerbstoff aus Sulfitzelluloseablaugen. 
 EMI1.1 




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  Process for the production of tanning agent from sulphite cellulose waste liquors.
 EMI1.1

Claims (1)

PATENT-ANSPRÜCHE : i. Verfahren zur Herstellung von Gerbstoff aus Sulfitzelluloseablaugen, dadurch gekennzeichnet, dass man die in bekannter Weise, z. B. durch Zusatz von Kalkmilch oder kohlensaurem Kalk neutralisierte Lauge elektrolysiert, wobei am positiven Pol freie Ligninsulfosäure ent- EMI2.1 PATENT CLAIMS: i. Process for the production of tanning agent from sulphite cellulose waste liquors, characterized in that the in a known manner, for. B. Lye neutralized by adding milk of lime or carbonate of lime is electrolyzed, with free lignosulfonic acid being formed at the positive pole. EMI2.1
AT88352D 1917-08-22 1918-06-01 Process for the production of tanning agent from sulphite cellulose waste liquors. AT88352B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE88352X 1917-08-22

Publications (1)

Publication Number Publication Date
AT88352B true AT88352B (en) 1922-05-10

Family

ID=5642196

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88352D AT88352B (en) 1917-08-22 1918-06-01 Process for the production of tanning agent from sulphite cellulose waste liquors.

Country Status (1)

Country Link
AT (1) AT88352B (en)

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