C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 31/12 (2006.01) B01D 53/02 (2006.01) B01J 20/04 (2006.01) B01J 20/20 (2006.01)
Patent
CA 2138376
Activated carbons for the adsorption of vapors, gases and liquids for a variety of appli- cations prepared from a dry lignite or brown coal treated with at least one of potassium hy- droxide and/or salts thereof and/or sodium hydroxide or salts thereof which are charred and thereafter activated. These activated carbons have increased hexane working capacity of at least 5.4 %.
Borden Ladner Gervais Llp
Calgon Carbon Corporation
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