发明名称 |
Process for the production of glycollic acid esters. |
摘要 |
<p>In a process for producing a glycollic acid ester by the vapor phase catalytic hydrogenation of an oxalic acid diester in the presence of a catalyst and hydrogen gas, the improvement wherein the oxalic acid diester in the vaporous state is contacted with hydrogen gas in the presence of a catalyst composed of Ag or Pd supported on a solid carrier at a temperature of from about 120°C to about 300°C.</p> |
申请公布号 |
EP0057007(A1) |
申请公布日期 |
1982.08.04 |
申请号 |
EP19820100493 |
申请日期 |
1982.01.25 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
MIYAZAKI, HARUHIKO;HIRAI, KOICHI;UDA, TAIZO;NAKAMURA, YASUO;IKEZAWA, HARUMI;TSUCHIE, TAKANORI |
分类号 |
B01J23/00;C07B61/00;C07C67/32;C07C69/675;(IPC1-7):07C69/675;01J23/44;01J23/50;07C67/30 |
主分类号 |
B01J23/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|