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Title:
イソシアネート混合物を精製するための装置、システム、および方法
Document Type and Number:
Japanese Patent JP5557841
Kind Code:
B2
Abstract:
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.

Inventors:
メレノヴ, Andrei S.
Balbo, Luke
スタル lard, Douglas A.
A ペンダー gust, John G.
ゲアルケ, ジョルグ‐ Peter
コルラド, Amir Karr R.
ヒビットス, David Day.
Application Number:
JP2011530240A
Publication Date:
July 23, 2014
Filing Date:
October 01, 2009
Export Citation:
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Assignee:
Dow Global Technologies LLC
International Classes:
C07C263/20; C07C265/14; C07C263/10
Attorney, Agent or Firm:
Kobayashi 浩
Eiji Katayama
Norio Omori
Yasuhito Suzuki