发明名称 |
Method for continuous soluble polypropylene recovery from hydrocarbon polymerization media |
摘要 |
Polypropylene is recovered from a dilute solution in spent organic polymerization medium in a process comprising: (1) partial steam stripping of volatile components from said medium to form an aqueous phase and a concentrated, water-insoluble phase containing the soluble polypropylene; (2) separating said concentrated water-insoluble phase and loading it into an evaporator; (3) evaporating the remaining volatile components from the separated said water-insoluble phase leaving fluidized polypropylene which when drawn off and solidified is suitable for commercial use.
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申请公布号 |
US4362865(A) |
申请公布日期 |
1982.12.07 |
申请号 |
US19810235678 |
申请日期 |
1981.02.18 |
申请人 |
STANDARD OIL COMPANY (INDIANA) |
发明人 |
BELLES, BENJAMIN P. |
分类号 |
C08F6/12;C08J11/08;(IPC1-7):C08F6/12 |
主分类号 |
C08F6/12 |
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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