JPS5498718A - Recovery of acrylic acid - Google Patents
Recovery of acrylic acidInfo
- 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
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
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)
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5452038A (en) * | 1977-09-28 | 1979-04-24 | Nippon Shokubai Kagaku Kogyo Co Ltd | Recovery hydroquinone |
-
1978
- 1978-01-19 JP JP375378A patent/JPS5498718A/en active Granted
-
1979
- 1979-01-18 SU SU792713493A patent/SU1169528A3/en active
Patent Citations (1)
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)
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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