发明授权
- 专利标题: Process for the preparation of dialkyl carbonates
- 专利标题(中): 制备碳酸二烷基酯的方法
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申请号: US938725申请日: 1978-08-31
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公开(公告)号: US4181676A公开(公告)日: 1980-01-01
- 发明人: Hans-Josef Buysch , Heinrich Krimm , Hans Rudolph
- 申请人: Hans-Josef Buysch , Heinrich Krimm , Hans Rudolph
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX2740243 19770907
- 主分类号: C07C69/96
- IPC分类号: C07C69/96 ; B01J23/00 ; B01J27/00 ; B01J31/00 ; C07B61/00 ; C07C29/128 ; C07C68/06
摘要:
An improved process for the preparation of a dialkyl carbonate by contacting a glycol carbonate with alcohol at an elevated temperature in the presence of an alkali metal or alkali metal compound, the improvement residing in employing less than 0.01 percent by weight of alkali metal and/or alkali metal compound, based upon the weight the reaction mixture.
公开/授权文献
- US5914842A Electromagnetic coupling device 公开/授权日:1999-06-22
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