发明名称 |
NANOMETER-SIZED MOLECULAR SIEVE CRYSTALS OR AGGLOMERATES AND PROCESSES FOR THEIR PRODUCTION |
摘要 |
A molecular sieve comprising crystals or agglomerates of average diameter 100 nanometers or less, which molecular sieve has a crystal or agglomerate size distribution such that the variance in the longest dimension is less than 15 % of the average longest dimension, and which is capable of forming a colloidal suspension, may be prepared by producing a boiling aqueous synthesis mixture of a silica source and an organic structure directing agent in the form of a hydroxide in an amount sufficient to cause substantially complete dissolution of the silica source, and crystallising the solution at 120 DEG C or less. The crystal size may be controlled by selection of an appropriate crystallisation temperature. |
申请公布号 |
WO9308125(A1) |
申请公布日期 |
1993.04.29 |
申请号 |
WO1992EP02386 |
申请日期 |
1992.10.19 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
VERDUIJN, JOHANNES, PETRUS |
分类号 |
C01B39/00;C01B37/02;C01B39/04;C01B39/06;C01B39/48 |
主分类号 |
C01B39/00 |
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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