Title:
【発明の名称】アクリレートの系から硫黄を除去する方法
Document Type and Number:
Japanese Patent JP2001521919
Kind Code:
A
Abstract:
Broadly, the present invention is directed to a process for the removal of sulfur from an acrylate stream. In particular, disclosed is a process for the recovery and reuse of an acid catalyst employed primarily in the reaction to form acrylic esters. Reaction end components which include the acid catalyst employed in the reaction process, are directed to an extractor for contact with water. Upon contact with water, a phase separation occurs between the acid catalyst/water mixture and other organic matter. The organic matter is sent forward for product purification while the acid/water mixture is recycled to the reaction process. The present invention employs the use of an extractor to aid in the separation of the acid catalyst from the reaction by-products. This removal of acid results in fewer organic sulfur components to be emitted from the reaction process and hence is a more environmentally friendly process.
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Inventors:
Warner, Earl Jay
Gaza, martiniano, junior
Pedraza, Hamelinda
Supplement, carolin
Gaza, martiniano, junior
Pedraza, Hamelinda
Supplement, carolin
Application Number:
JP2000518936A
Publication Date:
November 13, 2001
Filing Date:
October 12, 1998
Export Citation:
Assignee:
Celanese International Corporation
International Classes:
C07C67/58; C07C69/54; (IPC1-7): C07C67/58; C07C69/54
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)