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1. (WO1991005735) ACTIVE CARBON
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/005735 International Application No.: PCT/GB1990/001606
Publication Date: 02.05.1991 International Filing Date: 17.10.1990
Chapter 2 Demand Filed: 14.05.1991
IPC:
B01D 39/06 (2006.01) ,C01B 31/08 (2006.01) ,C01B 31/10 (2006.01) ,C10B 53/00 (2006.01) ,C10L 9/02 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
39
Filtering material for liquid or gaseous fluids
02
Loose filtering material, e.g. loose fibres
06
Inorganic material, e.g. asbestos fibres, glass beads or fibres
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
31
Carbon; Compounds thereof
08
Active carbon
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
31
Carbon; Compounds thereof
08
Active carbon
10
Preparation by using gaseous activating agents
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
B
DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
53
Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
L
FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K123; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
9
Treating solid fuels to improve their combustion
02
by chemical means
Applicants:
HOLLAND, Kenneth, Michael [GB/GB]; GB
Inventors:
HOLLAND, Kenneth, Michael; GB
Agent:
AUSTIN, Hedley, William; Urquhart-Dykes & Lord Alexandra House Alexandra Road Swansea West Glamorgan SA1 5ED, GB
Priority Data:
8923361.217.10.1989GB
Title (EN) ACTIVE CARBON
(FR) CHARBON ACTIF
Abstract:
(EN) The active carbon is produced by microwave-induced pyrolysis of a carbonaceous material in an atmosphere containing no more than 5 % oxygen so as to inhibit flame generation. The resulting product is treated with an acid (so as to wash out sulphur or metal values), and then activated by treatment with superheated steam and/or carbon dioxide at an elevated temperature.
(FR) On produit le charbon actif par pyrolyse à hyperfréquence d'un matériau carboné dans une atmosphère qui ne contient pas plus de 5 % d'oxygène afin de limiter la génération de flammes. Le produit ainsi obtenu est traité avec un acide (afin d'en éliminer par lavage les valeurs sulfuriques ou métalliques), puis activé par un traitement avec de la vapeur surchauffée et/ou du dioxyde de carbone à température élevée.
Designated States: AU, CA, GB, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
ES2075223EP0496778US5364821DE000069019757AU1990065335