DE486075C - Method for improving the adsorption capacity of active charcoal - Google Patents
Method for improving the adsorption capacity of active charcoalInfo
- 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
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
- C01B32/354—After-treatment
Landscapes
- 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)
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)
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 |
-
1923
- 1923-06-06 DE DEA40074D patent/DE486075C/en not_active Expired
Cited By (3)
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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