发明名称 |
APPARATUS, SYSTEMS, AND METHODS FOR PURIFICATION OF ISOCYANATE MIXTURES |
摘要 |
The present disclosure relates, according to some embodiments, to apparatus, systems, and/or methods for fractionating a feed mixture comprising, for example, one or more isocyanates, light components, solvents and/or heavier components. In some embodiments, fractionating an isocyanate feed mixture may comprise distilling the feed mixture in a non-adiabatic fractionating apparatus comprising a prefractionating section and/or column and a main section and/or column, which comprises a rectification section, a side section, and a stripping section. For example, isocyanates may be separated from light component(s), solvent(s) and/or heavier component(s). A fractionating apparatus may be configured and arranged, in some embodiments, as a dividing wall column. According to some embodiments of the disclosure, apparatus, systems, and/or methods may be energy efficient and/or may have a broad operating range. |
申请公布号 |
EP2342176(A2) |
申请公布日期 |
2011.07.13 |
申请号 |
EP20090793251 |
申请日期 |
2009.10.01 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
MERENOV, ANDREI, S.;BALBO, LUCA;STALLARD, DOUGLAS, A.;PENDERGAST, JOHN, G.;GEHRKE, JOERG-PETER;COLLADO, AMILCAR, R.;HIBBITTS, DAVID, D. |
分类号 |
C07C263/20;B01D3/00;B01D3/14;C07C265/04 |
主分类号 |
C07C263/20 |
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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