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US6037292A Compositions having two or more zeolite layers 失效
具有两个或多个沸石层的组合物

Compositions having two or more zeolite layers
摘要:
The present invention is directed towards compositions of two or more zeolite layers. The compositions of the invention include zeolite compositions that are themselves catalytic as well as zeolite compositions used in combination with non-zeolite catalytic materials. The compositions may include a porous support.
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