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US Patent Application 20100063323 - Reactor having titanium silicate recycling

Application 20100063323 Filed on September 9, 2008. Published on March 11, 2010

Inventors

Assignee

US Classes

564/259, Preparing directly by reacting carbonyl with hydroxylamine or salt thereof422/234, Including external recycle loop422/189, And means providing discrete sequential reaction stages; e.g., train, etc.422/225Mechanical type stirring means

Attorney, Agent or Firm

Foreign Documents

  • 102008041870.6 DE 09/08/2008

International Classes

C07C 249/08
B01J 19/00
B01J 19/18

Issued Patent Number:

8021632


Abstract text


The invention relates to a plant for carrying out chemical reactions, having a reactor (1), the reaction space of which contains hydrogen peroxide (H2O2) and titanium silicalite (TS-1). The object of the invention is to improve such a plant such that continuous separation and recycling of the active catalyst to the reaction space is possible with a long filter service life. This is achieved in that the reaction space contains a solid silicon source, in that the plant comprises a water takeoff line (3) which is set up for drawing off water in addition to components which are dissolved and/or dispersed therein from the reaction space, in that the water takeoff line (3) leads to a filter (4) which separates off the components which are dissolved and/or dispersed in the water, and in that the plant has a return line (5) which is set up for recirculating to the reaction space components which are separated off by means of the filter (4).

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