发明名称 |
PROCESS AND APPARATUS FOR THE CRYSTALLIZATION OF GLUCONODELTALACTONE |
摘要 |
A gluconic acid syrup is introduced into a first crystallization zone 1a which it is brought to traverse under stirring and inside which it is maintained at a constant temperature, the mixture syrup and the gluconodeltalactone crystals emerging from this first zone being brought to traverse a second crystallization zone 1b within which it is subjected firstly to a temperature gradient decreasing globally, possibly modulated then to a substantially constant temperature, the mixture emerging from this second zone being in the form of a crystalline mass rich in gluconodeltalactone crystals from which the latter are recovered. |
申请公布号 |
DE3664769(D1) |
申请公布日期 |
1989.09.07 |
申请号 |
DE19863664769 |
申请日期 |
1986.05.13 |
申请人 |
ROQUETTE FRERES |
发明人 |
LELEU, JEAN BERNARD;LEMAY, PATRICK |
分类号 |
C07D309/30;(IPC1-7):C07D309/00 |
主分类号 |
C07D309/30 |
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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