Title:
アンヒドロ糖アルコールを製造するための一体化された連続方法
Document Type and Number:
Japanese Patent JP2005529121
Kind Code:
A
Abstract:
An integrated continuous process is disclosed for the manufacture of high purity, polymer grade dianhydro sugar alcohols, such as isosorbide, by the dehydration of corresponding sugar alcohols. The water vapors evolved during the dehydration are used to separate product dianhydro sugar alcohols from the high boiling byproducts in the reaction mass. The product is recovered from the vapor stream as high purity crystals. The high boiling reaction byproducts are recycled.
Inventors:
Kamresh Kumar Bhatia
Application Number:
JP2003586156A
Publication Date:
September 29, 2005
Filing Date:
April 17, 2003
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
C07B61/00; C07D493/04; (IPC1-7): C07D493/04
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe
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