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Patent Searching and Data


Title:
METHOD OF PRODUCING (METH)ACRYLIC ACID OR ESTER THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/142862
Kind Code:
A1
Abstract:
The present invention relates to a method of producing (meth)acrylic acid or ester thereof which includes a step of generating distillation gas from process fluid that comprises (meth)acrylic acid or ester thereof under reduced pressure effected by a reduced pressure device and generating a condensate from the distillation gas using a vertical multitubular heat exchanger, wherein the vertical multitubular heat exchanger has a spray nozzle that can spray droplets having a Sauter mean diameter of 570 to 1500 μm and the average gas flow rate of the uncondensed distillation gas that flows into a relay space from an extraction chamber is 15.0 m/s or less.

Inventors:
NAKAMURA MASANARI (JP)
OGAWA YASUSHI (JP)
Application Number:
JP2019/001268
Publication Date:
July 25, 2019
Filing Date:
January 17, 2019
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C07C51/44; B01D3/10; B01D3/14; B01D3/34; B01D5/00; C07C57/07; F28F9/22
Foreign References:
JP2018008925A2018-01-18
JP2003240482A2003-08-27
JP2003240479A2003-08-27
JP2005325084A2005-11-24
JP2017066130A2017-04-06
JP2000344688A2000-12-12
JPS6311921B21988-03-16
JP2018007446A2018-01-11
JP2019003553A2019-01-10
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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