WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1981000398) HARD GRANULAR ACTIVATED CARBON MANUFACTURED FROM SUB-BITU-MINOUS COAL TREATED WITH SOLID BORIC ACID
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000398    International Application No.:    PCT/US1980/000932
Publication Date: 19.02.1981 International Filing Date: 28.07.1980
IPC:
C01B 31/14 (2006.01)
Applicants:
Inventors:
Priority Data:
62839 01.08.1979 US
Title (EN) HARD GRANULAR ACTIVATED CARBON MANUFACTURED FROM SUB-BITU-MINOUS COAL TREATED WITH SOLID BORIC ACID
(FR) CHARBON ACTIF DUR GRANULAIRE PRODUIT A PARTIR DE CHARBON SOUS-BITUMINEUX TRAITE AVEC DE L'ACIDE BORIQUE SOLIDE
Abstract: front page image
(EN)Hard granular activated carbon is manufactured from sub-bituminous coal by blending to obtain a uniform mixture including the coal, from about 1% to about 10% by weight of solid boric acid and 0 to about 10% by weight of a carbonaceous binder such as pitch, pulverizing the mixture to form fine powder having a moisture content of not less than about 10% and not more than about 25%, by weight prior to compressing the powder into shapes, which are crushed to form 6/20 mesh granules, which are subjected to appropriate heat treatment until activated. The activated granules are suitable for liquid or gas phase applications depending upon the amount of acid used.
(FR)Du charbon actif dur, granulaire, est produit a partir de charbon sous-bitumineux par melange uniforme de charbon, de 1% environ a 10% environ en poids d'acide borique solide et de 0 a environ 10% en poids d'un liant carbone tel que du brai, par pulverisation du melange pour former une poudre fine ayant une teneur en humidite non inferieure a 10% environ et n'excedant pas 50% environ en poids avant la compression de la poudre en formes qui sont broyees pour former des granules de maille 6/20, qui sont soumis a un traitement thermique approprie jusqu'a leur activation. Les granules actives se pretent a des applications en phase liquide ou gazeuse selon la quantite d'acide utilise.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)