发明名称 |
Active carbon by potassium ion exchange and leaching of carbonaceous material |
摘要 |
A high yield active carbon is obtained from brown coal, lignite and similar carbonaceous materials. The brown coal is converted into a potassium-coal by reaction with an aqueous solution containing potassium ions; the potassium-coal is carbonized (pyrolysed) and the char so produced is leached to remove the bound potassium ions. The potassium-coal can be tabletted or extruded prior to the carbonization. Surface areas of up to 1500 m2/g have been observed in the product. Additional activity can be achieved by subjecting the product to a conventional activation process.
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申请公布号 |
US4039473(A) |
申请公布日期 |
1977.08.02 |
申请号 |
US19760668004 |
申请日期 |
1976.03.18 |
申请人 |
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION |
发明人 |
SCHAFER, HARRY NEIL SCOTT |
分类号 |
C01B31/10;C01B31/12;C01B31/16;(IPC1-7):C01B31/16 |
主分类号 |
C01B31/10 |
代理机构 |
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代理人 |
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地址 |
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