发明名称 |
Process for recovering the light noble products contained in the distillation residues from the processes of production of acrylic acid and its esters |
摘要 |
<p>Recovery of noble light prods. (I) (i.e. acrylic acid monomer, acrylic ester monomer and 1-8C alcohol contained in distillation residues obtd. during the manufacture of acrylic acid or 1-8C acrylic acid ester (II), by thermal cracking of the residues. The process is characterised in that: (a) cracking is carried out, in the absence of a catalyst, on heavy distillation residues from the manufacture of acrylic acid on the one hand and on heavy distillation residues from the manufacture of acrylic acid ester on the other hand, (b) the light fraction from the dissociation reactions is continually vaporised during cracking, and (c) the light fraction is distilled so as to recover (I) after condensation.</p> |
申请公布号 |
EP0717031(A1) |
申请公布日期 |
1996.06.19 |
申请号 |
EP19950402777 |
申请日期 |
1995.12.11 |
申请人 |
ELF ATOCHEM S.A. |
发明人 |
FAUCONET, MICHEL;RICHARD, NORBERT;DELAFIN, PATRICK |
分类号 |
C07C27/00;C07C27/28;C07C29/80;C07C31/02;C07C51/44;C07C51/487;C07C57/04;C07C57/055;C07C57/07;C07C67/08;C07C67/327;C07C67/54;C07C67/60;C07C69/54;(IPC1-7):C07C67/60 |
主分类号 |
C07C27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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