METHOD FOR MODIFYING TITANIUM SILICON MOLECULAR SIEVES
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United States of America Patent
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Issued Date -
Dec 4, 2014
app pub date -
Mar 18, 2012
filing date -
Oct 31, 2011
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Abandoned
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Abstract
This invention belongs to the technical field of inorganic chemical synthesis, relating to a modification method for titanium-silicalite zeolite (TS-1). The feature of the invention is pretreating on the TS-1, the TS-1 after pretreatment is modified by the mixture of TPAOH and alkali salts, the alkali salts can be the compounds containing lithium, sodium and potassium element, and then the modification is performed at last. The benefit of the invention is universal capable to modify the TS-1 synthesized by any method, specially the TS-1 with low cost one, the modification can enhance the catalytic performance on both gas and liquid phase epoxidation of propylene.
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