发明授权
- 专利标题： Treatment of tall oil soap
- 专利标题（中）： 处理妥尔油皂
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申请号： US702493申请日： 1996-11-29
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公开(公告)号： US5891990A公开(公告)日： 1999-04-06
- 发明人: Elias Varila , Tellervo Rouvinen
- 申请人： Elias Varila , Tellervo Rouvinen
- 申请人地址： FRX Paris
- 专利权人： l'Air Liquide, Societe Anonyme pour l'Etude et Exploitation des Procedes Georges Claude
- 当前专利权人： l'Air Liquide, Societe Anonyme pour l'Etude et Exploitation des Procedes Georges Claude
- 当前专利权人地址： FRX Paris
- 优先权： FIX940969 19940301
- 主分类号： C11B1/04
- IPC分类号： C11B1/04 ; C11B13/00 ; C11B13/02 ; C09F1/00 ; C07C51/00
摘要：
The invention relates to a method for improving the separation of water in a tall oil preparation process which comprises:a neutralization stage in which a mixture of soap and water is neutralized with carbon dioxide,a water separation stage in which the aqueous phase containing bicarbonate is separated from the soap, anda cooking stage in which the soap obtained from the preceding stage is cooked with sulfuric acid to form tall oil, the improvement comprising the procedure that, after the neutralization with carbon dioxide but before the water separation stage, a second neutralization with sulfuric acid is carried out.The invention also relates to a process comprising the stages presented above for the preparation of tall oil.
公开/授权文献
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