发明名称 |
METHOD FOR SEPARATION AND COLLECTION OF DIALKYL TIN DIALKOXIDE |
摘要 |
<p>For an alkyltin alkoxide catalyst composition used in carbonate production, there is a problem that the alkyltin alkoxide catalyst composition is thermally decomposed by being heated in the production process, changing into an undistillable alkyltin alkoxide catalyst composition containing a high boiling deactivated component and an active component. The present invention provides a method for separating out and recovering the active component from the alkyltin alkoxide catalyst composition as a useful dialkyltin dialkoxide. According to the present invention, there is disclosed a method in which such an undistillable alkyltin alkoxide catalyst composition containing a high boiling deactivated component and an active component is reacted with an alcohol and / or a carbonate, so as to obtain a reaction liquid containing a product originating from the active component, and then the reaction liquid is subjected to distillation, so as to separate out and recover a dialkyltin dialkoxide from the product originating from the active component.</p> |
申请公布号 |
CA2643271(A1) |
申请公布日期 |
2007.08.30 |
申请号 |
CA20072643271 |
申请日期 |
2007.02.22 |
申请人 |
ASAHI KASEI PHARMA CORPORATION |
发明人 |
BIJANTO, BUDIANTO;MIYAKE, NOBUHISA |
分类号 |
B01J38/00;B01J31/12;B01J31/40;C07C68/00 |
主分类号 |
B01J38/00 |
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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