PROCESS FOR PREPARING POLYMERIZATE BEING SUITABLE FOR PREPARATION OF DIMERIC FATTY ACIDS BY MOLECULAR DISTILLATION PROCESS
- 专利权人:
- SCHWARZ WALTER ING. CSC.;SVOBODA VLADIMIR;LIST JAROSLAV ING. CSC.;NOVAK BOHDAN ING.;JIROUSEK ANTONIN ING.;KULTOVA IRENA ING.;ZEMAN IVO ING. CSC.;BEZPALEC JAN ING.;KUTIL JAROSLAV
- 发明人:
- SCHWARZ WALTER ING. CSC.,SVOBODA VLADIMIR,LIST JAROSLAV ING. CSC.,NOVAK BOHDAN ING.,JIROUSEK ANTONIN ING.,KULTOVA IRENA ING.,ZEMAN IVO ING. CSC.,BEZPALEC JAN ING.,KUTIL JAROSLAV
- 申请号：
- CS19890000822
- 公开号：
- CZ281587(B6)
- 申请日:
- 1989.02.08
- 申请国别(地区):
- 捷克
- 年份:
- 1996
- 代理人:
- 摘要：
This method of producing a polymerisate suitable for preparing dimeric fatty acids by molecular distillation from this polymerisate is based on the catalytic polymerisation of a mixture of fatty acids containing 65 to 97 parts by weight of monoenoic and/or dienoic fatty acids, mainly fatty acids of non erucic rapeseed oil and/or refinery fatty acids, 0.5 to 2.5 parts by weight of water, and 2 to 8 parts by weight of a catalyst based on bentonite. The polymerisation is performed at a temperature of 250 to 270 degrees C, the pressure in the reaction zone increases during the reaction at least to 1 MPa. The termination of the polymerisation is indicated by achieving a viscosity of at least 160 mPa.s (at 40 degrees C after removing the catalyst). Then it is cooled to 100 to 200 degrees C and filtration, or possibly a further decrease of the pressure to remove volatile parts.
- 来源网站：
- 中国工程科技知识中心
