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 JP2012504643
Kind Code:
A
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:
Mellenov, Andrey S.
Barbo, Luka
Starlard, Douglas A.
Pendergust, John Gee.
Gearch, Jorg-Peter
Corrad, Amilcar Earl.
Hibits, David Day.
Barbo, Luka
Starlard, Douglas A.
Pendergust, John Gee.
Gearch, Jorg-Peter
Corrad, Amilcar Earl.
Hibits, David Day.
Application Number:
JP2011530237A
Publication Date:
February 23, 2012
Filing Date:
October 01, 2009
Export Citation:
Assignee:
Dow Global Technologies LLC
International Classes:
C07C263/20; C07C265/00
Domestic Patent References:
| JP2004155760A | 2004-06-03 | |||
| JP2004155761A | 2004-06-03 | |||
| JP2004143173A | 2004-05-20 | |||
| JP2006206593A | 2006-08-10 | |||
| JP2006510696A | 2006-03-30 | |||
| JP2009120528A | 2009-06-04 |
Attorney, Agent or Firm:
Hiroshi Kobayashi
Eiji Katayama
Norio Omori
Yasuhito Suzuki
Eiji Katayama
Norio Omori
Yasuhito Suzuki