DE330942C - Process for the production of a highly active decolorizing carbon - Google Patents

Process for the production of a highly active decolorizing carbon

Info

Publication number
DE330942C
DE330942C DE1919330942D DE330942DD DE330942C DE 330942 C DE330942 C DE 330942C DE 1919330942 D DE1919330942 D DE 1919330942D DE 330942D D DE330942D D DE 330942DD DE 330942 C DE330942 C DE 330942C
Authority
DE
Germany
Prior art keywords
production
highly active
decolorizing carbon
active decolorizing
hydrolysis
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
DE1919330942D
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.)
Zellsloff Fabrik Waldhof AG
Original Assignee
Zellsloff Fabrik Waldhof AG
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 Zellsloff Fabrik Waldhof AG filed Critical Zellsloff Fabrik Waldhof AG
Application granted granted Critical
Publication of DE330942C publication Critical patent/DE330942C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/312—Preparation
    • C01B32/318—Preparation characterised by the starting materials
    • C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Description

Verfahren zur Herstellung einer hochaktiven Entfärbungskohle. Durch Patent 309155 ist ein Verfahren zur Herstellung einer hochaktiven Entfärbungskohle geschützt, welches dadurch gekennzeichnet ist, daß man die bei der Hydrolyse von Zellulose oder zellulosehaltigen Materialien hinterbleibenden Rückstände der Verkohlung unterwirft.Process for the production of a highly active decolorizing carbon. By U.S. Patent 309155 is a method of making a highly active decolorizing carbon protected, which is characterized in that one in the hydrolysis of Cellulose or cellulosic materials left behind by charring subject.

Versuche haben nun ergeben, daß man noch zu wesentlich besseren Ergebnissen kommt und das Verfahren noch wirtschaftlicher gestalten kann, wenn man aus den nach der Hydrolyse hinterbleibenden Rückständen vor der Verkohlung die harzartigen Bestandteile entfernt. Dies kann in bekannter Weise durch verseifende Mittel (Alkalilaugen), vor allem aber-durch Extraktion mit organischen Harzlösungsmitteln (Kohlenwasserstoffe, Alkohol, Ketone usw.) geschehen.Tests have now shown that you can still get much better results comes and the process can be made even more economical if you get out of the the residues left over from hydrolysis before carbonization remove the resinous constituents removed. This can be done in a known manner by saponifying agents (alkaline solutions), but above all - by extraction with organic resin solvents (hydrocarbons, Alcohol, ketones, etc.) happen.

Claims (1)

PATENT-ANsPRUcH: Verfahren zur Herstellung einer hochaktiven Entfärbungskohle nach Patent 309=55 dadurch gekennzeichnet, daß die bei der Hydrolyse der Zellulose hinterbleibenden Rückstände vor der Verkohlung einer Extraktion mit harzlösenden Mitteln unterworfen werden.PATENT CLAIM: Process for the production of a highly active decolorizing carbon according to patent 309 = 55 characterized in that the hydrolysis of the cellulose remaining residues before charring an extraction with resin dissolving Funds are subject to.
DE1919330942D 1919-12-25 1919-12-25 Process for the production of a highly active decolorizing carbon Expired DE330942C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE330942T 1919-12-25

Publications (1)

Publication Number Publication Date
DE330942C true DE330942C (en) 1920-12-21

Family

ID=6193650

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1919330942D Expired DE330942C (en) 1919-12-25 1919-12-25 Process for the production of a highly active decolorizing carbon

Country Status (1)

Country Link
DE (1) DE330942C (en)

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