发明名称 |
PROCESS FOR THE PREPARATION OF SUCCINIC ACID ESTER. |
摘要 |
A process for the production of dialkyl succinate from a bio-succinic acid feedstock comprising the steps of: feeding bio-succinic acid to a point at or near the bottom of a reaction distillation zone column operated at temperatures and pressures to enable esterification of the succinic acid and passing said stream co-currently with upflowing alkanol such that said esterification reaction occurs: removing an overhead vapour stream from at or near the top of the reaction distillation zone column comprising di-ester, alkanol, water of esterification and organic components and passing said stream to an alkanol separation column where the alkanol is separated from the water of esterification and from the organic components; removing a side draw from the alkanol separation column from a point below the feed point thereto, said side draw comprising partially immiscible organic and aqueous phases; passing said side draw to phase separation apparatus where the partially immiscible organic and aqueous phases are separated; passing said organic phase to a column where the dialkyl succinate is separated from residual water and other organic components; and recovering the dialkyl succinate. |
申请公布号 |
MX2015011050(A) |
申请公布日期 |
2016.05.05 |
申请号 |
MX20150011050 |
申请日期 |
2014.12.02 |
申请人 |
JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED |
发明人 |
REED, GRAHAM;GORDON, PAUL;SMIDT, MARTIN LUCAS;FERGUSON, CHRISTOPHER;CAMPBELL, IAN |
分类号 |
C07C67/08 |
主分类号 |
C07C67/08 |
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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