Title:
プロピレングリコールモノアルキルエーテルの精製
Document Type and Number:
Japanese Patent JP5859730
Kind Code:
B2
Abstract:
The invention is a method of purifying a propylene glycol monoalkyl ether containing carbonyl impurities which comprises contacting the propylene glycol monoalkyl ether stream in the liquid phase with a carbon adsorbent, and recovering a purified propylene glycol monoalkyl ether product. The purification method improves product quality and reduces the amount of carbonyl impurities in the propylene glycol monoalkyl ether.
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Inventors:
Lee, Cyan Min
Lawrence M. Candela
Lawrence M. Candela
Application Number:
JP2010542204A
Publication Date:
February 16, 2016
Filing Date:
November 14, 2008
Export Citation:
Assignee:
Lion Dell Chemical Technology, L.P.
International Classes:
C07C41/58; C07C41/03; C07C43/13
Domestic Patent References:
| JP2005350402A | ||||
| JP58189128A | ||||
| JP7109492A | ||||
| JP2004520309A | ||||
| JP477442A | ||||
| JP6329610A | ||||
| JP5246920A | ||||
| JP7232089A |
Foreign References:
| US20040211658 | ||||
| US3367847 | ||||
| WO1999058483A1 |
Other References:
H.C.CHITWOOD外1名,Journal of the American Chemical Society,1946年,68(4)pp.680-683
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Okimoto Kazuaki
Minako Matsuyama
Ken Matsumoto
Noriyuki Arai
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Okimoto Kazuaki
Minako Matsuyama
Ken Matsumoto
Noriyuki Arai