DE408926C - Process for the production of a highly active carbon - Google Patents

Process for the production of a highly active carbon

Info

Publication number
DE408926C
DE408926C DEF52203D DEF0052203D DE408926C DE 408926 C DE408926 C DE 408926C DE F52203 D DEF52203 D DE F52203D DE F0052203 D DEF0052203 D DE F0052203D DE 408926 C DE408926 C DE 408926C
Authority
DE
Germany
Prior art keywords
production
highly active
active carbon
acids
combustion gases
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
DEF52203D
Other languages
German (de)
Inventor
Dr Otto Ernst
Dr Otto Nicodemus
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Priority to DEF52203D priority Critical patent/DE408926C/en
Application granted granted Critical
Publication of DE408926C publication Critical patent/DE408926C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/30Active carbon
    • C01B32/312Preparation
    • C01B32/342Preparation characterised by non-gaseous activating agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Description

Verfahren zur Herstellung einer hochaktiven Kohle. In der Patentschrift 371691 ist ein Verfahren zur Darstellung hochaktiver hohle beschrieben, dadurch gekennzeichnet, daß -man kohlenstoffhaltige Substanzen -in Gegenwart von Säuren des Phosphors bis zur Verkohlung erhitzt. Bei- dieser Darstellung von aktiver Kohle findet leicht ein Verlust an Phosphorsäure durch Reduktion derselben zu Phosphor und Phosphorwasserstoff statt, welcher insbesondere auch mit Rücksicht auf die mit ,der Anwesenheit der Reduktionsprodukte hervorgerufene leichte Entzündbarkeit bemerkenswert ist. Wir haben nun ein blitter gefunden, diese störende Wirkung auszuschalten, einerseits, indem wir das Verfahren im Drehofen unter Verwendung von Heiz- und V erbrennungsgasen ausführen, anderseits, indem wir diesen Verbrennungsgasen noch zur Vermeidung der unerwünschten Reduktion Sauerstoff hinzufügen. Es --war in keiner Weise vorauszusehen, daß die Verwendung von Heiz- und Verbrennungsgasen, insbesondere auch mit Rücksicht auf ihren Gehalt an reduzierenden Bestandteilen, und weiterhin die Zuführung von Sauerstoff die erwünschte Wirkung der Zurückdrängung der Reduktion haben würde, und der Gedanke der Verwendung der in Frage stehenden Mittel zur Vermeidung einer solchen Reduktion war keineswegs naheliegend. Vorteilhaft macht . sich bei dem Verfahren die trotz inniger-Durchdringung mit Sauerstoff zu-- verzeichnende, Unverbrennlichkeit der mittels Phosphorsäure hergestellten Kohle durch besonders gute Ausbeute geltend.Process for the production of a high-active carbon. In the patent specification 371691 describes a method for the preparation of highly active hollow, thereby characterized in that -man carbon-containing substances -in the presence of acids of phosphorus heated to charring. In this representation of active coal easily finds a loss of phosphoric acid by reducing it to phosphorus and phosphine instead, which in particular also with regard to the with , the presence of the reduction products caused the flammability to be remarkable is. We have now found a blitter to eliminate this disruptive effect, on the one hand, by doing the process in a rotary kiln using heating and combustion gases perform, on the other hand, by using these combustion gases still to avoid the add oxygen to undesired reduction. It - could not be foreseen in any way that the use of heating and combustion gases, especially with consideration on their content of reducing constituents, and continue the addition of Oxygen would have the desired effect of suppressing the reduction, and the thought of using the resources in question to avoid one such a reduction was by no means obvious. Makes beneficial. themselves in the process the incombustibility that can be recorded in spite of the intimate penetration of oxygen of the charcoal produced by means of phosphoric acid due to its particularly good yield.

Claims (1)

PATEN,'r-A\ sPRUcH:-Weitere Ausbildung des ,Verfahrens des Patents 371691 zur Herstellung einer hochaktiven Kohle, dadurch gekennzeichnet, daß man die kohlenstoffhaltigen Substanzen nach Tränkung oder Imprägnierung mit Säuren des Phosphors oder solchen Verbindungen, die während der Verkohlung oder in Gegenwart von Feuchtigkeit in Phosphorsäuren zerfallen, im Drehofen mit Heiz- oder Verbrennungsgasen bis zur völligen Verkohlung erhitzt, vorteilhaft in Gegenwart von überschüssigem Sauerstoff.PATEN, 'r APPLICATION: - Further training of the, process of the patent 371691 for the production of a highly active charcoal, characterized in that one the carbonaceous substances after soaking or impregnation with acids des Phosphorus or those compounds that occur during charring or in the presence decay of moisture into phosphoric acids, in the rotary kiln with heating or combustion gases Heated until completely charred, advantageously in the presence of excess Oxygen.
DEF52203D 1922-06-16 1922-06-16 Process for the production of a highly active carbon Expired DE408926C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF52203D DE408926C (en) 1922-06-16 1922-06-16 Process for the production of a highly active carbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF52203D DE408926C (en) 1922-06-16 1922-06-16 Process for the production of a highly active carbon

Publications (1)

Publication Number Publication Date
DE408926C true DE408926C (en) 1925-01-27

Family

ID=7105264

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF52203D Expired DE408926C (en) 1922-06-16 1922-06-16 Process for the production of a highly active carbon

Country Status (1)

Country Link
DE (1) DE408926C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0188203A2 (en) * 1985-01-15 1986-07-23 Bayer Ag Process for the preparation of active carbons

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0188203A2 (en) * 1985-01-15 1986-07-23 Bayer Ag Process for the preparation of active carbons
EP0188203A3 (en) * 1985-01-15 1987-03-25 Bayer Ag Process for the preparation of active carbons

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