DE69312784D1 - Verfahren zur Verringerung von Verunreinigungen in wässrigen Monomerlösungen - Google Patents
Verfahren zur Verringerung von Verunreinigungen in wässrigen MonomerlösungenInfo
- Publication number
- DE69312784D1 DE69312784D1 DE69312784T DE69312784T DE69312784D1 DE 69312784 D1 DE69312784 D1 DE 69312784D1 DE 69312784 T DE69312784 T DE 69312784T DE 69312784 T DE69312784 T DE 69312784T DE 69312784 D1 DE69312784 D1 DE 69312784D1
- Authority
- DE
- Germany
- Prior art keywords
- propyl
- hydrogen
- aqueous monomer
- monomer solutions
- reducing impurities
- 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.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/50—Use of additives, e.g. for stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/872,278 US5208370A (en) | 1992-04-22 | 1992-04-22 | Method of reducing impurities in aqueous acrylic monomer solutions |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69312784D1 true DE69312784D1 (de) | 1997-09-11 |
DE69312784T2 DE69312784T2 (de) | 1998-03-05 |
Family
ID=25359242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69312784T Expired - Fee Related DE69312784T2 (de) | 1992-04-22 | 1993-02-12 | Verfahren zur Verringerung von Verunreinigungen in wässrigen Monomerlösungen |
Country Status (7)
Country | Link |
---|---|
US (1) | US5208370A (de) |
EP (1) | EP0567207B1 (de) |
JP (1) | JP3359368B2 (de) |
AT (1) | ATE156473T1 (de) |
BR (1) | BR9300387A (de) |
CA (1) | CA2088106A1 (de) |
DE (1) | DE69312784T2 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5358611A (en) * | 1993-05-17 | 1994-10-25 | Rohm And Haas Company | Method of reducing impurities in aqueous monomer solutions |
US5759358A (en) * | 1994-05-31 | 1998-06-02 | Rohm And Haas Company | Process for pure grade acrylic acid |
US5571386A (en) * | 1994-05-31 | 1996-11-05 | Rohm And Haas Company | Process for grade acrylic acid |
US6927268B2 (en) | 2000-06-21 | 2005-08-09 | Nippon Shokubai Co., Ltd. | Production process for water-absorbent resin |
TWI529181B (zh) | 2005-02-28 | 2016-04-11 | 贏創德固賽有限責任公司 | 以可更新原料為基之吸水聚合物結構及其生產的方法 |
JP5739600B2 (ja) * | 2007-12-17 | 2015-06-24 | 三菱レイヨン株式会社 | ヒドロキシエチルメタクリレートの製造方法 |
WO2009133813A1 (ja) * | 2008-04-27 | 2009-11-05 | 株式会社日本触媒 | アクリル酸の製造方法ならびにその製造方法を用いた親水性樹脂の製造方法および吸水性樹脂の製造方法 |
EP2970084B1 (de) | 2013-03-15 | 2017-10-18 | Rohm and Haas Company | Verfahren zur reinigung von (meth)acrylsäure |
US9410217B2 (en) | 2014-02-18 | 2016-08-09 | Renmatix, Inc. | Method of reducing a fermentation and/or enzyme inhibitor in a saccharide-containing composition |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2028183B2 (de) * | 1969-06-10 | 1975-09-11 | Rohm And Haas Co., Philadelphia, Pa. (V.St.A.) | Verfahren zur Inhibierung der Polymerisation von Acrylsäure bei der Destillation |
US3725208A (en) * | 1971-08-20 | 1973-04-03 | Nippon Kayaku Kk | Process for purification of acrylic acid from aldehydes by distillation with a reagent |
DE2235326A1 (de) * | 1972-07-19 | 1974-02-07 | Degussa | Verfahren zur reinigung 1,2-ungesaettigter carbonsaeuren |
JPS5944337A (ja) * | 1982-09-06 | 1984-03-12 | Nippon Shokubai Kagaku Kogyo Co Ltd | メタクリル酸の精製方法 |
JPS6121855A (ja) * | 1984-07-06 | 1986-01-30 | ブラザー工業株式会社 | ハンガ−コンベアシステム |
DE3641996A1 (de) * | 1986-12-09 | 1988-06-16 | Basf Ag | Verfahren zum abtrennen von aldehyden aus (alpha),(beta)-olefinisch ungesaettigten carbonsaeuren |
JPH0729977B2 (ja) * | 1986-12-26 | 1995-04-05 | 三井東圧化学株式会社 | メタクリル酸の精製方法 |
EP0312191B1 (de) * | 1987-10-09 | 1992-09-16 | MITSUI TOATSU CHEMICALS, Inc. | Verfahren zur Reinigung von Methacrylsäure |
JP3025122B2 (ja) * | 1992-12-28 | 2000-03-27 | キヤノン株式会社 | 光起電力素子及び発電システム |
JP3062018B2 (ja) * | 1994-11-11 | 2000-07-10 | 新日本製鐵株式会社 | 熱間圧延における板厚制御方法 |
-
1992
- 1992-04-22 US US07/872,278 patent/US5208370A/en not_active Expired - Lifetime
-
1993
- 1993-01-26 CA CA002088106A patent/CA2088106A1/en not_active Abandoned
- 1993-01-29 BR BR9300387A patent/BR9300387A/pt not_active Application Discontinuation
- 1993-02-12 DE DE69312784T patent/DE69312784T2/de not_active Expired - Fee Related
- 1993-02-12 AT AT93301039T patent/ATE156473T1/de not_active IP Right Cessation
- 1993-02-12 EP EP93301039A patent/EP0567207B1/de not_active Expired - Lifetime
- 1993-02-24 JP JP03537193A patent/JP3359368B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69312784T2 (de) | 1998-03-05 |
ATE156473T1 (de) | 1997-08-15 |
CA2088106A1 (en) | 1993-10-23 |
JP3359368B2 (ja) | 2002-12-24 |
EP0567207A3 (de) | 1995-03-08 |
EP0567207B1 (de) | 1997-08-06 |
EP0567207A2 (de) | 1993-10-27 |
JPH05339199A (ja) | 1993-12-21 |
US5208370A (en) | 1993-05-04 |
BR9300387A (pt) | 1993-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |