Title:
DIVIDING WALL COLUMN FOR PRODUCING HIGH-PURITY NEOPENTYL GLYCOL, AND MANUFACTURING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2012/091396
Kind Code:
A2
Abstract:
The present invention relates to a dividing wall column for producing high-purity neopentyl glycol, and to a method for distilling the neopentyl glycol. By using only one column, the dividing wall column has the same effect as when using two columns. Thus, energy and equipment costs may be reduced in the production of the high-purity neopentyl glycol as compared to a conventional process apparatus.
Inventors:
LEE SUNG KYU (KR)
SHIN JOON HO (KR)
LEE JONG KU (KR)
SHIN JOON HO (KR)
LEE JONG KU (KR)
Application Number:
PCT/KR2011/010131
Publication Date:
July 05, 2012
Filing Date:
December 27, 2011
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
LEE SUNG KYU (KR)
SHIN JOON HO (KR)
LEE JONG KU (KR)
LEE SUNG KYU (KR)
SHIN JOON HO (KR)
LEE JONG KU (KR)
International Classes:
C07C29/80; B01D3/14; C07B63/00; C07C31/20
Foreign References:
| JP2000505103A | 2000-04-25 | |||
| US4935555A | 1990-06-19 | |||
| US4855515A | 1989-08-08 | |||
| US4021496A | 1977-05-03 |
Other References:
None
See also references of EP 2660230A4
See also references of EP 2660230A4
Attorney, Agent or Firm:
DANA PATENT LAW FIRM (KR)
특허법인 다나 (KR)
특허법인 다나 (KR)
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Claims: