METHOD FOR PREPARING NEOPENTYL GLYCOL AT HIGH EFFICIENCY AND APPARATUS FOR PREPARING SAME

Title:

METHOD FOR PREPARING NEOPENTYL GLYCOL AT HIGH EFFICIENCY AND APPARATUS FOR PREPARING SAME

Document Type and Number:

WIPO Patent Application WO/2016/047957

Kind Code:

A1

Abstract:

The present disclosure relates to a method for preparing neopentyl glycol at high efficiency and an apparatus for preparing the same and, more specifically, to a method for preparing neopentyl glycol by introducing a hydroxy pivaldehyde solution and hydrogen into a hydrogenation reactor containing a hydrogenation catalyst, the hydroxy pivaldehyde solution containing 6 to 30 wt% of hydroxy pivaldehyde, 35 to 70 wt% of neopentyl glycol, 10 to 30 wt% of alcohol, and 10 to 30 wt% of water, and to an apparatus for preparing the same. According to the present disclosure, provided can be a method for preparing neopentyl glycol and an apparatus for preparing the same, wherein the need to heat a feed vessel to an entrance of the hydrogenation reactor separately is avoided to enable energy saving, and thus high-boiling point byproducts are not generated in the above section, thereby protecting an activity of a hydrogenation catalyst in the reactor from poisoning by the high-boiling point byproducts, and further improving the hydrogenation reaction yield.

Inventors:

EOM SUNG SHIK (KR)
KO DONG HYUN (KR)
KIM MI YOUNG (KR)
JUNG DA WON (KR)
KIM TAE YUN (KR)
CHOI MIN JI (KR)

Application Number:

PCT/KR2015/009661

Publication Date:

March 31, 2016

Filing Date:

September 15, 2015

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

C07C29/141; C07C29/94; C07C31/20

Foreign References:

KR20010033761A	2001-04-25
EP0484800B1	1995-09-27
US20110098515A1	2011-04-28
US20110184212A1	2011-07-28
KR20060073044A	2006-06-28

Other References: