发明名称 |
NEUTRALIZATION OF TALL OIL SOAP |
摘要 |
<p>The invention relates to a method for improving the separation of water in a tall oil preparation process which comprises: a neutralization step, in which a mixture of tall oil soap and water is neutralized with carbon dioxide; a water separation step, in which the aqeuous phase containing bicarbonate is separated from the tall oil soap; and a cooking step, in which the tall oil soap obtained from the previous step is cooked with sulfuric acid in order to form tall oil, the improvement comprising the fact that, after the neutralization with carbon dioxide but before the water separation step, the pH is adjusted with an acidically reacting substance, such as bisulfite. The invention also relates to a method for the preparation of tall oil, the method comprising the steps stated above.</p> |
申请公布号 |
WO9634932(A1) |
申请公布日期 |
1996.11.07 |
申请号 |
WO1996FI00243 |
申请日期 |
1996.05.03 |
申请人 |
OY POLARGAS AB;AITTA, EERO;VARILA, ELIAS |
发明人 |
AITTA, EERO;VARILA, ELIAS |
分类号 |
C11B13/02;(IPC1-7):C11B13/02;C09F1/001 |
主分类号 |
C11B13/02 |
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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