发明名称 |
CARBOXYLATED CELLULOSE ION-EXCHANGE MATERIALS |
摘要 |
A process for preparing a carboxylated cellulose ion exchange material which comprises heating a mixture of cellulose and citric, isocitric or aconitic acid at a temperature of from about 100 DEG to 160 DEG C. while removing water, and then treating the product with aqueous alkali at a pH of 8 to 11 to hydrolyze cross-linked acid residues; carboxylated cellulose ion exchange materials prepared by the process and their use in removing heavy-metal ions from aqueous solutions such as in industrial effluent treatment and precious metal recovery. |
申请公布号 |
AU5167679(A) |
申请公布日期 |
1980.04.17 |
申请号 |
AU19790051676 |
申请日期 |
1979.10.10 |
申请人 |
PFIZER CORP. |
发明人 |
ROY CARRINGTON;MICHAEL CHRISTOPHER HALL |
分类号 |
B01D15/04;B01J39/22;C02F1/42;C08B3/00;C08B3/12;C08B3/24 |
主分类号 |
B01D15/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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