Activated carbon and process for its production

Catalyst – solid sorbent – or support therefor: product or process – Solid sorbent – Free carbon containing

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502417, 502437, B01J 2020, C01B 3112

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active

046423044

ABSTRACT:
Activated carbon is produced from lignite coke. It is characterized by the product of the molasses number times the iodine number divided by 1000 being 350 to 1000 and/or the product of the molasses number times the methylene blue number divided by 10 being 500 to 1200. It is produced by adding aqueous alkali or alkaline earth carbonate solution and/or aqueous alkali or alkaline earth hydroxide solution by means of lance during the steam activation of lignite coke in a rotating tube.

REFERENCES:
patent: 3492244 (1970-01-01), Fujiwara et al.
patent: 3764561 (1973-10-01), Nishino
patent: 3817874 (1974-06-01), Wenherberg et al.
patent: 4039473 (1977-08-01), Shafer
patent: 4082694 (1978-04-01), Wenherberg et al.
patent: 4551155 (1985-11-01), Wood et al.
Ullmanns Encyklopadie der Technischen Chemie 4th, edition-vol. 14--pp. 623-626.
Happe, Chem, Techn. vol. 34--Jun. 192--pp. 298-300.
Bader, Hktivkohle und Chrf Industrielle Anwendung (1980) pp. 71-74.

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