公开(公告)号：USH708H

公开(公告)日：1989-11-07

申请号：US35847

申请日：1987-04-08

申请人： Youichi Oka ,  Hitoshi Sawada ,  Masao Yokoyama

发明人： Youichi Oka ,  Hitoshi Sawada ,  Masao Yokoyama

IPC分类号： C07B61/00 ,  C07H9/04

CPC分类号： C07H9/04

摘要： A method of producing diacetone sorbose by reacting L-sorbose with acetone in the presence of a ketal formation catalyst in acetone, which comprises: carrying out the reaction while continuously removing water generated in the reaction together with acetone and continuously adding to the reaction mixture dehydrated acetone of which water content is not more than about 100 ppm.

公开(公告)号：US4778882A

公开(公告)日：1988-10-18

申请号：US788433

申请日：1985-10-17

申请人： Youichi Oka ,  Masao Yokoyama ,  Toshiaki Dairaku

发明人： Youichi Oka ,  Masao Yokoyama ,  Toshiaki Dairaku

IPC分类号： C07B41/02 ,  B01J19/18 ,  C07B31/00 ,  C07B41/04 ,  C07B41/12 ,  C07B63/00 ,  C07C67/00 ,  C07H9/04 ,  C07C41/56

CPC分类号： C07H9/04 ,  B01J19/18 ,  B01J2219/00094 ,  B01J2219/00159 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/00182 ,  B01J2219/185 ,  Y02P20/582

摘要： An apparatus and a method for carrying out the dehydration reaction to produce a high boiling compound comprises charging a raw material and an organic solvent into a circulating system including a reactor, a preheater and an evaporator to cause the chemical dehydration reaction, drawing water, formed as a result of the dehydration reaction, together with the solvent in the form of vapor, compressing the vapor, effecting a heat exchange between the compressed vapor and the evaporator, dehydrating the compressed vapor by condensation, removing the dehydrated water out of the system, and returning the remaining solvent to the reactor.

摘要翻译： 进行脱水反应以制备高沸点化合物的装置和方法包括将原料和有机溶剂装入包括反应器，预热器和蒸发器的循环系统中，引起化学脱水反应，形成水 作为脱水反应的结果，与蒸汽形式的溶剂一起压缩蒸汽，进行压缩蒸气和蒸发器之间的热交换，通过冷凝使压缩的蒸气脱水，将脱水的水从系统中除去， 并将剩余的溶剂返回到反应器中。