发明名称 |
Apparatus and method for removing volatile components from viscous liquids |
摘要 |
A devolatilizer apparatus and method for devolatilization of viscous polymer liquids yields polymer products with very low levels of residual volatile components. A stream of liquid polymer is dropped through a first vacuum chamber, thereby removing a portion of the volatile components. The stream is collected at the bottom of the first chamber, and is re-circulated to a manifold and liquid distributor assembly in a second chamber in the same vessel. The stream flows by gravity through the second chamber, which is maintained at a higher level of vacuum than the first chamber. Improved devolatilization is accomplished by exposing the polymer liquid to multiple stages of vacuum in a single vessel. The first chamber may be located generally above the second chamber, but in the same vessel, with the stream falling through the second chamber a first time before re-circulation to the manifold.
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申请公布号 |
US7682484(B2) |
申请公布日期 |
2010.03.23 |
申请号 |
US20060394565 |
申请日期 |
2006.03.31 |
申请人 |
PROCESS DEVELOPMENT SERVICES, INC. |
发明人 |
COWLEY PETER R.;NEWMAN RANDOLPH E. |
分类号 |
B01D1/16;B01D3/06;C08F6/10;C08F6/28 |
主分类号 |
B01D1/16 |
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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