发明名称 |
Process for filtering a cellulose acetate solution |
摘要 |
A process for filtering a cellulose acetate solution comprises the steps of providing a solution of cellulose acetate which is dissolved in an organic solvent; adding to the solution a quantity of loose particulate matter and loose fibers so as to form a mixture; and filtering the solution through pores of a filter medium so as to produce a filtrate of the solution, whereby due to addition of the loose particulate matter and the loose fibers clogging of the pores is reduced relative to the amount of filtrate passing through the pores and the effective filtering time of the filtering medium is thereby increased.
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申请公布号 |
US4132642(A) |
申请公布日期 |
1979.01.02 |
申请号 |
US19770830444 |
申请日期 |
1977.09.06 |
申请人 |
CHEMAP AG |
发明人 |
MULLER, HANS;BUHLER, RUDOLF;RAPSOMANIKIS, NIKOLAS |
分类号 |
B01D37/02;C08B3/22;D01D1/10;(IPC1-7):B01D37/02 |
主分类号 |
B01D37/02 |
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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