公开(公告)号：US4315843A

公开(公告)日：1982-02-16

申请号：US153605

申请日：1980-05-27

申请人： Graziano Vidotto ,  Febo Sellan ,  Enzo Bacchetta ,  Sandro Mainardi ,  Giovanni Benussi

发明人： Graziano Vidotto ,  Febo Sellan ,  Enzo Bacchetta ,  Sandro Mainardi ,  Giovanni Benussi

IPC分类号： C08F14/00 ,  C08F6/00 ,  C08F6/06 ,  C08F6/14 ,  C08F6/16 ,  C08F14/06

CPC分类号： C08F6/16

摘要： A process for extracting vinyl chloride monomer from polyvinyl chloride latexes is disclosed, characterized in that the latex is continuously flowed on and along a heat exchange surface in the form of a thin film having a thickness ranging from 0.5 to 1.2 mm, said latex having a temperature between 40.degree. and 70.degree. C. and under a pressure ranging from 45 to 210 mm Hg., and for a time ranging from 10 to 70 seconds. The gaseous vinyl chloride monomer is removed concurrently with the flow of the latex. Suitable apparatus is also disclosed.

摘要翻译： 公开了一种从聚氯乙烯胶乳中提取氯乙烯单体的方法，其特征在于胶乳在厚度范围为0.5至1.2mm的薄膜形式的热交换表面上并沿着其流动，所述胶乳具有 温度在40°至70°C之间，压力范围为45至210 mm Hg，时间范围为10至70秒。 气态氯乙烯单体与胶乳的流动同时被除去。 还公开了合适的装置。