DD106353A5 - - Google Patents

Info

Publication number
DD106353A5
DD106353A5 DD172115A DD17211573A DD106353A5 DD 106353 A5 DD106353 A5 DD 106353A5 DD 172115 A DD172115 A DD 172115A DD 17211573 A DD17211573 A DD 17211573A DD 106353 A5 DD106353 A5 DD 106353A5
Authority
DD
German Democratic Republic
Application number
DD172115A
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 filed Critical
Publication of DD106353A5 publication Critical patent/DD106353A5/xx

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
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • 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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/22—Accessories
DD172115A 1972-07-19 1973-07-06 DD106353A5 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2235326A DE2235326A1 (de) 1972-07-19 1972-07-19 Verfahren zur reinigung 1,2-ungesaettigter carbonsaeuren

Publications (1)

Publication Number Publication Date
DD106353A5 true DD106353A5 (ja) 1974-06-12

Family

ID=5851016

Family Applications (1)

Application Number Title Priority Date Filing Date
DD172115A DD106353A5 (ja) 1972-07-19 1973-07-06

Country Status (11)

Country Link
US (1) US3893895A (ja)
JP (1) JPS4951217A (ja)
AT (1) AT321878B (ja)
AU (1) AU5802873A (ja)
BE (1) BE802465A (ja)
DD (1) DD106353A5 (ja)
DE (1) DE2235326A1 (ja)
FR (1) FR2193000B3 (ja)
IT (1) IT989913B (ja)
NL (1) NL7310061A (ja)
RO (1) RO62904A (ja)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726252B2 (ja) * 1973-01-23 1982-06-03
JPS5223017A (en) * 1975-08-13 1977-02-21 Toagosei Chem Ind Co Ltd Process for purification of (meth) acrylic acid or its esters
US4358347A (en) * 1982-01-26 1982-11-09 The Dow Chemical Company Removal of trace aldehydes from carboxylic acids
JPS606635A (ja) * 1983-06-24 1985-01-14 Mitsubishi Petrochem Co Ltd １，２−不飽和カルボン酸および／またはそのエステルの精製法
DE3446265A1 (de) * 1984-12-19 1986-06-19 Haarmann & Reimer Gmbh, 3450 Holzminden Verfahren zur reinigung von rohem ss-phenylethylalkohol
JPH0675183B2 (ja) * 1986-02-07 1994-09-21 富士写真フイルム株式会社 ハロゲン化銀カラ−写真感光材料の処理方法
DE3641996A1 (de) * 1986-12-09 1988-06-16 Basf Ag Verfahren zum abtrennen von aldehyden aus (alpha),(beta)-olefinisch ungesaettigten carbonsaeuren
US5196578A (en) * 1987-10-09 1993-03-23 Mitsui Toatsu Chemicals, Incorporated Purification process of methacrylic acid
EP0312191B1 (en) * 1987-10-09 1992-09-16 MITSUI TOATSU CHEMICALS, Inc. Process for purifying methacrylic acid
US5023372A (en) * 1989-05-16 1991-06-11 Betz Laboratories, Inc. Methods and compositions for inhibiting (meth)acrylic acid polymerization
US5208370A (en) * 1992-04-22 1993-05-04 Rohm And Haas Co. Method of reducing impurities in aqueous acrylic monomer solutions
US5358611A (en) * 1993-05-17 1994-10-25 Rohm And Haas Company Method of reducing impurities in aqueous monomer solutions
US5571386A (en) * 1994-05-31 1996-11-05 Rohm And Haas Company Process for grade acrylic acid
US5759358A (en) * 1994-05-31 1998-06-02 Rohm And Haas Company Process for pure grade acrylic acid
US5482597A (en) * 1994-11-23 1996-01-09 Basf Aktiengesellschaft Purification of crude (meth)acrylic acid
US5961790A (en) * 1994-12-14 1999-10-05 Basf Aktiengesellschaft Separation of (meth) acrylic acid by rectification
US5606094A (en) * 1995-01-10 1997-02-25 Baker Hughes Incorporated Acrolein scavengers
DE19501326A1 (de) * 1995-01-18 1996-07-25 Basf Ag Verfahren der rektifikativen Abtrennung von (Meth)acrylsäure aus einem (Meth)acrylsäure als Hauptbestandteil und niedere Aldehyde als Nebenbestandteile enthaltenden Gemisch in einer aus Abtriebsteil und Verstärkerteil bestehenden Rektifiaktionskolonne
DE19536179A1 (de) * 1995-09-28 1997-04-03 Basf Ag Verfahren zur rektifikativen Abtrennung von ungesättigten Carbonsäuren aus Lösungsmitteln
TW524796B (en) * 1997-11-17 2003-03-21 Sumitomo Chemical Co Method for producing acrylic acid
DE19810962A1 (de) * 1998-03-13 1999-09-16 Basf Ag Verfahren der rektifikativen Abtrennung von (Meth)acrylsäure aus einem (Meth)acrylsäure und eine höher als (Meth)acrylsäure siedende organische Flüssigkeit als Hauptbestandteile enthaltenden Gemisch
US6331264B1 (en) 1999-03-31 2001-12-18 E. I. Du Pont De Nemours And Company Low emission polymer compositions
US6277289B1 (en) 1999-07-01 2001-08-21 E. I. Du Pont De Nemours And Company Treatment of aqueous aldehyde waste streams
US20040222154A1 (en) * 2003-05-08 2004-11-11 E.I.Du Pont De Nemours & Company Treatment of non-aqueous aldehyde waste streams
CN105026355A (zh) * 2013-03-15 2015-11-04 罗门哈斯公司 纯化(甲基)丙烯酸的方法
CN103819331B (zh) * 2014-02-28 2015-08-05 山东易达利化工有限公司 一种甲基丙烯酸的脱色和提纯方法
US10239815B2 (en) 2015-02-05 2019-03-26 Nippon Shokubai Co., Ltd. Method for producing acrylic acid
EP4015498B1 (de) 2020-12-18 2024-04-24 Basf Se Verfahren zur kontinuierlichen herstellung von acrylsäure-n-butylester

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2414639A (en) * 1940-01-15 1947-01-21 Shell Dev Process for concentrating diolefins utilizing methyl amines as azeotrope formers
US2386365A (en) * 1941-02-28 1945-10-09 Distillers Co Yeast Ltd Manufacture of polymerizable unsaturated acids
US2375036A (en) * 1942-09-08 1945-05-01 Shell Dev Extractive distillation
US2609387A (en) * 1948-12-01 1952-09-02 Monsanto Chemicals Removal of amine inhibitors from unsaturated monomers
US3337740A (en) * 1962-02-13 1967-08-22 Deering Milliken Res Corp Process for separating acrylic acid from impurities
US3344144A (en) * 1962-09-13 1967-09-26 Asahi Chemical Ind Inhibition of polymerization of monomeric compounds containing vinyl groups
US3274231A (en) * 1962-09-13 1966-09-20 Asahi Chemical Ind Compositions and methods of stabilizing unsaturated organic nitriles
US3478093A (en) * 1966-02-19 1969-11-11 Basf Ag Separation of methacrylic acid and acrylic acid
US3639466A (en) * 1967-04-03 1972-02-01 Basf Ag Production of acrylic acid from residues obtained in working up acrylic acid
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
JPS4924898B1 (ja) * 1970-12-26 1974-06-26
US3725208A (en) * 1971-08-20 1973-04-03 Nippon Kayaku Kk Process for purification of acrylic acid from aldehydes by distillation with a reagent

Also Published As

Publication number Publication date
AU5802873A (en) 1975-01-16
BE802465A (fr) 1974-01-17
AT321878B (de) 1975-04-25
US3893895A (en) 1975-07-08
DE2235326A1 (de) 1974-02-07
RO62904A (ja) 1977-09-15
FR2193000A1 (ja) 1974-02-15
FR2193000B3 (ja) 1976-07-02
NL7310061A (ja) 1974-01-22
IT989913B (it) 1975-06-10
JPS4951217A (ja) 1974-05-18

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