发明名称 |
PROCEDIMENTO PER CONCENTRARE SOLUZIONI ACQUOSE DI ALCOL PERPERVAPORAZIONE. |
摘要 |
<p>In a process for concentrating an aqueous solution of an alcohol by pervaporation technique, that is by conducting the alcoholic solution onto one side (14a) of a semipermeable membrane (20) located in an enclosed space (14) and by removing from the other side (14b) of the membrane vaporizing permeate which has diffused through the membrane (20) and which is of changed alcohol concentration, the semipermeate membrane (20) is formed of cellulose carbamate. <IMAGE></p> |
申请公布号 |
IT1215483(B) |
申请公布日期 |
1990.02.14 |
申请号 |
IT19870020496 |
申请日期 |
1987.05.13 |
申请人 |
NESTE OY |
发明人 |
ANTERO AHVENAINEN;JOHAN FREDRIK SELIN;KAARINA SAVOLAINEN;JUKKA SEPPALA |
分类号 |
B01D1/00;B01D61/36;B01D71/12;C07C27/00;C07C29/76;C07C31/02;C07C31/08;C07C37/70;C07C39/04;C07C67/00;C08B3/14;(IPC1-7):C07C/ |
主分类号 |
B01D1/00 |
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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