发明名称 |
Method of ion exchange zeolites |
摘要 |
An improved ion exchange method is provided in which an alkali metal cation-containing crystalline metallosilicate zeolite is contacted with an ion exchange medium comprising an ammonium ion, urea and water. The resulting mixture is heated to a temperature sufficient to evaporate the water and solidify the remaining mixture. An ammonium exchanged zeolite having a decreased content of alkali metal is recovered.
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申请公布号 |
US4346067(A) |
申请公布日期 |
1982.08.24 |
申请号 |
US19810278163 |
申请日期 |
1981.06.29 |
申请人 |
EXXON RESEARCH & ENGINEERING CO. |
发明人 |
WACHTER, WILLIAM A. |
分类号 |
B01J29/08;C01B33/20;C01B39/02;(IPC1-7):C01B33/20;C01B33/28 |
主分类号 |
B01J29/08 |
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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