发明名称 |
A PROCESS FOR THE RECOVERY OF LACTIC ACID |
摘要 |
The invention provides a process for producing lactic acid and products thereof from a medium containing an alkaline earth-metal salt of lactic acid, comprising (a) reacting a conjugated base of an alkali metal from a subsequent step with the medium to form a water soluble alkali metal lactate salt and a basic compound of the alkaline earth metal; (b) separating the water soluble alkali metal lactate salt and the basic compound of the alkaline earth metal; (c) splitting the water soluble alkali metal lactate to form a conjugated alkali metal base and a lactic acid product, which product is selected from the group consisting of lactic acid, a derivative thereof and combination thereof; (d) separating the conjugated alkali metal base and the lactic acid product; (e) reusing the separated conjugated alkali metal base or a product thereof in the step (a); and (f) reusing the basic compound of the alkaline earth metal, separated in step (b), or a product thereof to form an alkaline earth-metal salt of lactic acid.
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申请公布号 |
WO9837050(A1) |
申请公布日期 |
1998.08.27 |
申请号 |
WO1998US02695 |
申请日期 |
1998.02.12 |
申请人 |
YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM;EYAL, AHARON, MEIR;WITZKE, DAVID;FISHER, ROD |
发明人 |
EYAL, AHARON, MEIR;WITZKE, DAVID;FISHER, ROD |
分类号 |
C07C51/02;C07C51/41;C07C51/48;C07C51/487;C12P7/56;(IPC1-7):C07C51/487 |
主分类号 |
C07C51/02 |
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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