| 发明名称 |
PREPARATION OF ACRYLIC ACID AND ESTERS |
| 摘要 |
<p>A process for preparing acrylic acid and/or esters comprises the steps of: (a) catalytic gas phase oxidation of propene and/or acrolein to acrylic acid to obtain a gaseous reaction product comprising acrylic acid, (b) solvent absorption of the reaction product, (c) distillation of the solvent loaded with acrylic acid to obtain a crude acrylic acid and the solvent, (d) purification of the crude acrylic acid by crystallization and (e) optionally esterification of the crystalline acrylic acid.</p> |
| 申请公布号 |
CA2194900(A1) |
申请公布日期 |
1997.07.13 |
| 申请号 |
CA19972194900 |
申请日期 |
1997.01.10 |
| 申请人 |
MACHHAMMER, OTTO;DOCKNER, TONI;ENGERT, GERD-JUERGEN;PROLL, THEO |
发明人 |
MACHHAMMER, OTTO;DOCKNER, TONI;ENGERT, GERD-JUERGEN;PROLL, THEO |
| 分类号 |
B01D9/02;B01D3/00;C07B61/00;C07C51/235;C07C51/25;C07C51/43;C07C51/48;C07C57/04;C07C57/05;C07C57/055;C07C57/07;C07C69/54;(IPC1-7):C07C57/05;C07C67/08;C07C51/21 |
主分类号 |
B01D9/02 |
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