JPS5498718A - Recovery of acrylic acid - Google Patents

Recovery of acrylic acid

Info

Publication number
JPS5498718A
JPS5498718A JP375378A JP375378A JPS5498718A JP S5498718 A JPS5498718 A JP S5498718A JP 375378 A JP375378 A JP 375378A JP 375378 A JP375378 A JP 375378A JP S5498718 A JPS5498718 A JP S5498718A
Authority
JP
Japan
Prior art keywords
acrylic acid
solution
evaporator
distillation tower
dimer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP375378A
Other languages
Japanese (ja)
Other versions
JPS6135977B2 (en
Inventor
Masao Baba
Michito Okane
Takahisa Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Shokubai Co Ltd
Original Assignee
Nippon Shokubai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Shokubai Co Ltd filed Critical Nippon Shokubai Co Ltd
Priority to JP375378A priority Critical patent/JPS5498718A/en
Priority to US06/003,405 priority patent/US4317926A/en
Priority to SU792713493A priority patent/SU1169528A3/en
Priority to DE19792901783 priority patent/DE2901783A1/en
Priority to FR7901403A priority patent/FR2415092A1/en
Priority to GB792038A priority patent/GB2012760B/en
Publication of JPS5498718A publication Critical patent/JPS5498718A/en
Publication of JPS6135977B2 publication Critical patent/JPS6135977B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To recover acrylic acid efficiently by heat decomposition of acrylic acid dimer or polymer which is concentrated in the solution at the bottom of the acrylic acid distillation tower used in the last stage of the formation of an acrylic acid by the gaseous catalytic oxidation of, e.g. propylene.
CONSTITUTION: The gas containing acrylic acid formed by the gaseous catalytic oxidation of propylene or acrolein is led into the distillation tower 2, and the solution at the bottom of the acrylic acid distillation tower is heated to distill out acrylic acid. Then the acrylic acid dimer existing in the residual solution and hydroquinone used as a polymerization inhibitor are heated at the evaporator 7 to decompose the acrylic acid dimer into acrylic acid. A part of the solution taken out is recycled into the evaporator and the remaining part is treated in the evaporator 16 of the second step in the same way as in the first step to separate hydroquenone and to recover acrylic acid.
EFFECT: Considerably increases the yield of the purification of acrylic acid and lowers the cost of the expensive hydroquinone used as polymerization inhibitor.
COPYRIGHT: (C)1979,JPO&Japio
JP375378A 1978-01-19 1978-01-19 Recovery of acrylic acid Granted JPS5498718A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP375378A JPS5498718A (en) 1978-01-19 1978-01-19 Recovery of acrylic acid
US06/003,405 US4317926A (en) 1978-01-19 1979-01-15 Process for preparing and recovering acrylic acid
SU792713493A SU1169528A3 (en) 1978-01-19 1979-01-18 Method of isolating acrylic acid
DE19792901783 DE2901783A1 (en) 1978-01-19 1979-01-18 PROCESS FOR RECOVERY OF ACRYLIC ACID
FR7901403A FR2415092A1 (en) 1978-01-19 1979-01-19 PROCEDURE FOR RECOVERING THE OLIGOMERS OF ACRYLIC ACID OBTAINED IN THE PREPARATION OF THIS COMPOUND BY SIMULTANEOUSLY RECOVERING THE HYDROQUINONE USED AS A POLYMERIZATION INHIBITOR
GB792038A GB2012760B (en) 1978-01-19 1979-01-19 Process for recovering acrylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP375378A JPS5498718A (en) 1978-01-19 1978-01-19 Recovery of acrylic acid

Publications (2)

Publication Number Publication Date
JPS5498718A true JPS5498718A (en) 1979-08-03
JPS6135977B2 JPS6135977B2 (en) 1986-08-15

Family

ID=11565941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP375378A Granted JPS5498718A (en) 1978-01-19 1978-01-19 Recovery of acrylic acid

Country Status (2)

Country Link
JP (1) JPS5498718A (en)
SU (1) SU1169528A3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001058970A (en) * 1999-08-20 2001-03-06 Nippon Shokubai Co Ltd Purification of acrylic acid
JP2005179352A (en) * 2003-11-28 2005-07-07 Mitsubishi Chemicals Corp Method of purifying (meth)acrylic acid
WO2005082827A1 (en) * 2004-02-26 2005-09-09 Mitsubishi Chemical Corporation Method of handling hihgly viscous substance
US7244863B2 (en) 2001-11-20 2007-07-17 Mitsubishi Chemical Corporation Process for producing (meth)acrylic acid compound
JP2007523120A (en) * 2004-02-19 2007-08-16 ストックハウゼン ゲーエムベーハー Resolution of (meth) acrylic acid oligomers under pressure in the fluid phase

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2428338T3 (en) 2003-11-28 2013-11-07 Mitsubishi Chemical Corporation Method to capture (meth) acrolein or (meth) acrylic acid
JP5380434B2 (en) 2008-04-27 2014-01-08 株式会社日本触媒 Method for producing acrylic acid, method for producing hydrophilic resin using the method, and method for producing water-absorbing resin
JP2011529094A (en) * 2008-07-28 2011-12-01 ビーエーエスエフ ソシエタス・ヨーロピア Method for separating acrylic acid contained as main product and glyoxal contained as by-product from gaseous product mixture of C3 precursor compound of acrylic acid
CN107207397B (en) 2015-02-05 2020-10-30 株式会社日本触媒 Method for producing acrylic acid
WO2017023777A1 (en) 2015-07-31 2017-02-09 Novomer, Inc. Production system/production process for acrylic acid and precursors thereof
KR102437695B1 (en) 2017-09-29 2022-08-29 삼성전자주식회사 Bubble generator and washing machine having the same
US11498894B2 (en) 2019-03-08 2022-11-15 Novomer, Inc. Integrated methods and systems for producing amide and nitrile compounds

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452038A (en) * 1977-09-28 1979-04-24 Nippon Shokubai Kagaku Kogyo Co Ltd Recovery hydroquinone

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452038A (en) * 1977-09-28 1979-04-24 Nippon Shokubai Kagaku Kogyo Co Ltd Recovery hydroquinone

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001058970A (en) * 1999-08-20 2001-03-06 Nippon Shokubai Co Ltd Purification of acrylic acid
JP4542214B2 (en) * 1999-08-20 2010-09-08 株式会社日本触媒 Acrylic acid purification method
US7244863B2 (en) 2001-11-20 2007-07-17 Mitsubishi Chemical Corporation Process for producing (meth)acrylic acid compound
JP2005179352A (en) * 2003-11-28 2005-07-07 Mitsubishi Chemicals Corp Method of purifying (meth)acrylic acid
JP2007523120A (en) * 2004-02-19 2007-08-16 ストックハウゼン ゲーエムベーハー Resolution of (meth) acrylic acid oligomers under pressure in the fluid phase
WO2005082827A1 (en) * 2004-02-26 2005-09-09 Mitsubishi Chemical Corporation Method of handling hihgly viscous substance

Also Published As

Publication number Publication date
JPS6135977B2 (en) 1986-08-15
SU1169528A3 (en) 1985-07-23

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