发明授权
- 专利标题: Recovery of glycerine from saline waters
- 专利标题(中): 从盐水中回收甘油
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申请号: US631125申请日: 1984-07-16
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公开(公告)号: US4599178A公开(公告)日: 1986-07-08
- 发明人: George C. Blytas
- 申请人: George C. Blytas
- 申请人地址: TX Houston
- 专利权人: Shell Oil Company
- 当前专利权人: Shell Oil Company
- 当前专利权人地址: TX Houston
- 主分类号: C07C29/74
- IPC分类号: C07C29/74 ; B01D1/00 ; B01D61/44 ; B01D61/54 ; C02F1/04 ; C02F1/469 ; C02F1/58 ; C07C27/00 ; C07C29/76 ; C07C31/22 ; C07C67/00 ; B01D17/00
摘要:
A process for recovery of glycerine from saline waters-containing glycerine comprises evaporating the water to precipitate a major amount of any salts present, separating the liquid phase and diluting it with water to low viscosity, electrodialysing the diluted liquid phase to obtain, (1) a concentrate stream which is recycled to the evaporative step, and (2) a diluate stream which is subjected to fractionation distillation to obtain glycerine as an overhead fraction.
公开/授权文献
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