DE486075C - Method for improving the adsorption capacity of active charcoal - Google Patents

Method for improving the adsorption capacity of active charcoal

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Publication number
DE486075C
DE486075C DEA40074D DEA0040074D DE486075C DE 486075 C DE486075 C DE 486075C DE A40074 D DEA40074 D DE A40074D DE A0040074 D DEA0040074 D DE A0040074D DE 486075 C DE486075 C DE 486075C
Authority
DE
Germany
Prior art keywords
active charcoal
acid
adsorption capacity
improving
charcoal
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
DEA40074D
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.)
Algemeene Norit Mij
Original Assignee
Algemeene Norit Mij
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 Algemeene Norit Mij filed Critical Algemeene Norit Mij
Application granted granted Critical
Publication of DE486075C publication Critical patent/DE486075C/en
Expired legal-status Critical Current

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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
    • C01B32/354—After-treatment

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Description

Verfahren zum Verbessern des Adsorptionsvermögens von aktiver Kohle Vorliegende Erfindung betrifft eine weitere Ausbildung des durch das Patent 454407 geschützten Verfahrens der Veredelung aktiver Kohle mittels gasförmiger Säure oder säurebildenden Gases. Gemäß vorliegender Erfindung werden hierzu flüssige Säuren, z. B. Schwefelsäure, Phosphorsäure, Salpetersäure, Essigsäure, Zitronensäure, Weinsäure usw., verwendet.Process for improving the adsorption capacity of active charcoal The present invention relates to a further embodiment of the patent 454407 protected process of refining active coal using gaseous acid or acid-forming gas. According to the present invention, liquid acids, z. B. sulfuric acid, phosphoric acid, nitric acid, acetic acid, citric acid, tartaric acid etc. are used.

Die Kohle wird mit einer zur Erzielung des gewünschten Säuregrades erforderlichen= Menge wässeriger Lösung der gewählten Säure behandelt. Dabei wird eine Menge Wasser in die Kohle gebracht, die in. vielen Fällen. durch nachheriges Trocknen zu entfernen ist, während man in anderen Fällen das Nasser in der Kohle belä:ßt und diese unmittelbar in nassem oder lyreiförmigem Zustande verwendet, was die Benetzbarkeit der Kohle verbessern kann.The charcoal is made with a degree of acidity to achieve the desired level required = amount of aqueous solution of the chosen acid treated. It will brought a lot of water into the charcoal, in many cases. through subsequent Drying is to be removed, while in other cases the water is in the coal leaves and uses them immediately in a wet or lyre-shaped state, what can improve the wettability of the carbon.

Die Säurebehandlung kann vorkeilhaft im Anschluß an die Herstellung der aktiven Kohle ausgeführt werden.The acid treatment can be carried out after manufacture the active charcoal.

Im Falbe der Herstiellung von sauren Gemischen aktiver Kohle mit anderen Adsorbentien kann man die Säurebehandlung entweder vor, während oder nach der Mischung vornehmen.In the color of the production of acidic mixtures of active charcoal with others Adsorbents can be acid treated either before, during, or after mixing make.

Der Säuregrad wird zweckmäßig mit Rück-Sicht auf die Verwendungszwecke der aktiven Kohle oder d;es Gemischces gewählt. Er kann zwischen 0,3 und 5 %, bezogen auf das Kohleg ewicht, betragen.The degree of acidity is expediently selected with a view to the intended use of the active charcoal or mixture. It can be between 0.3 and 5%, based on the weight of the coal.

Es war bereits bekannt, daß man durch Zugabe nicht oder schwer flüchtiger Säuren, insbesondere von Phosphorsäure, die Entzündungsfähigkeit von Adsorptionskohlen herabsetzen oder aufheben. kann. Dieses bekannte Verfahren wird durch die vorliegende Erfindung nicht berührt, denn diese beruht auf der Erkenntnis, daß man durch die Behandlung aktiver Kohle mit Säuren das Adsorptionsvermögen der Kohle erheblich steigern kann. Die Erfindung ist nicht auf die Anwendung von nicht oder schwer flüchtigen Säuren, wie Phosphorsäure, beschränkt.It was already known that the addition would not or hardly volatilize Acids, especially phosphoric acid, the inflammability of adsorbent carbons decrease or cancel. can. This known method is supported by the present Invention does not affect, because this is based on the knowledge that one through the Treating active charcoal with acids significantly increases the adsorption capacity of charcoal can increase. The invention does not apply to the non-volatile or difficult to volatilize Acids such as phosphoric acid.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zur Veredelung aktiver Kohle nach Patent 454407 dadurch gekennzeichnet, daß man der aktiven Kohle flüssige Säure einverleibt. z. Gemäß denn Anspruch i behandelte aktive Kohle oder ein Gemisch aktiver Kohle mit anderen Adsorptionsmitteln, z. B. Bleicherde, mit einem Mindestgehalt von o,3 % -freier Säure in der Masse.PATENT CLAIMS: i. Process for refining active coal according to patent 454407, characterized in that liquid acid is incorporated into the active charcoal. z. According to claim i treated active charcoal or a mixture of active charcoal with other adsorbents, e.g. B. Fuller's earth, with a minimum content of o, 3 % free acid in the mass.
DEA40074D 1923-05-09 1923-06-06 Method for improving the adsorption capacity of active charcoal Expired DE486075C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL486075X 1923-05-09

Publications (1)

Publication Number Publication Date
DE486075C true DE486075C (en) 1929-11-08

Family

ID=19786631

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA40074D Expired DE486075C (en) 1923-05-09 1923-06-06 Method for improving the adsorption capacity of active charcoal

Country Status (1)

Country Link
DE (1) DE486075C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2752985A1 (en) * 1977-11-28 1979-05-31 Kureha Chemical Ind Co Ltd Removing malodorous basic components from gases - by contact with a support carrying an acid and or a salt
DE3322652A1 (en) * 1982-06-23 1984-05-24 Toho Beslon Co., Ltd., Tokyo FIBROUS ACTIVE CARBON AND METHOD FOR THE PRODUCTION THEREOF

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2752985A1 (en) * 1977-11-28 1979-05-31 Kureha Chemical Ind Co Ltd Removing malodorous basic components from gases - by contact with a support carrying an acid and or a salt
DE2752985C2 (en) * 1977-11-28 1986-06-12 Kureha Kagaku Kogyo K.K., Tokio/Tokyo Process for removing basic components of unpleasant smell from gases
DE3322652A1 (en) * 1982-06-23 1984-05-24 Toho Beslon Co., Ltd., Tokyo FIBROUS ACTIVE CARBON AND METHOD FOR THE PRODUCTION THEREOF

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