NL7201773A - - Google Patents

Info

Publication number
NL7201773A
NL7201773A NL7201773A NL7201773A NL7201773A NL 7201773 A NL7201773 A NL 7201773A NL 7201773 A NL7201773 A NL 7201773A NL 7201773 A NL7201773 A NL 7201773A NL 7201773 A NL7201773 A NL 7201773A
Authority
NL
Netherlands
Application number
NL7201773A
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
Priority to CA133,519A priority Critical patent/CA962698A/en
Priority to GB573872A priority patent/GB1346737A/en
Application filed filed Critical
Priority to NL7201773A priority patent/NL7201773A/xx
Priority to FR7205027A priority patent/FR2171910B1/fr
Priority to DE2207184A priority patent/DE2207184B2/en
Priority to BE779549A priority patent/BE779549A/en
Publication of NL7201773A publication Critical patent/NL7201773A/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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • 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
    • C07C51/50—Use of additives, e.g. for stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
NL7201773A 1972-01-31 1972-02-10 NL7201773A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA133,519A CA962698A (en) 1972-01-31 1972-01-31 Process for purification of acrylic acid
GB573872A GB1346737A (en) 1972-01-31 1972-02-08 Process for purification of acrylic acid
NL7201773A NL7201773A (en) 1972-01-31 1972-02-10
FR7205027A FR2171910B1 (en) 1972-01-31 1972-02-15
DE2207184A DE2207184B2 (en) 1972-01-31 1972-02-16 Process for cleaning acrylic acid
BE779549A BE779549A (en) 1972-01-31 1972-02-18 ACRYLIC ACID PURIFICATION PROCESS

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CA133,519A CA962698A (en) 1972-01-31 1972-01-31 Process for purification of acrylic acid
GB573872A GB1346737A (en) 1972-01-31 1972-02-08 Process for purification of acrylic acid
NL7201773A NL7201773A (en) 1972-01-31 1972-02-10
FR7205027A FR2171910B1 (en) 1972-01-31 1972-02-15
DE2207184A DE2207184B2 (en) 1972-01-31 1972-02-16 Process for cleaning acrylic acid
BE779549A BE779549A (en) 1972-01-31 1972-02-18 ACRYLIC ACID PURIFICATION PROCESS

Publications (1)

Publication Number Publication Date
NL7201773A true NL7201773A (en) 1973-08-14

Family

ID=32046140

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7201773A NL7201773A (en) 1972-01-31 1972-02-10

Country Status (6)

Country Link
BE (1) BE779549A (en)
CA (1) CA962698A (en)
DE (1) DE2207184B2 (en)
FR (1) FR2171910B1 (en)
GB (1) GB1346737A (en)
NL (1) NL7201773A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3641996A1 (en) * 1986-12-09 1988-06-16 Basf Ag METHOD FOR SEPARATING ALDEHYDES FROM (ALPHA), (BETA) -OLEFINICALLY UNSATURATED CARBONIC ACIDS
CA2001397A1 (en) * 1988-10-28 1990-04-28 Tadao Shimomura Method for production of acrylate and acrylate-containing polymer
DE4201697A1 (en) * 1992-01-23 1993-07-29 Basf Ag METHOD FOR PURIFYING RAW ACIDS (ALPHA), (BETA) -MONOETHYLENICALLY UNSATURATED CARBONIC ACIDS
DE4335172A1 (en) 1993-10-15 1995-04-20 Basf Ag Process for the purification of crude (meth) acrylic acid
SG85575A1 (en) * 1993-12-24 2002-01-15 Sumitomo Chemical Co Process for purifying acrylic acid
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
DE19501325A1 (en) * 1995-01-18 1996-07-25 Basf Ag Process for the rectificative separation of (meth) acrylic acid from a mixture containing (meth) acrylic acid
DE19501326A1 (en) * 1995-01-18 1996-07-25 Basf Ag Process for the rectificative separation of (meth) acrylic acid from a (meth) acrylic acid as the main constituent and lower aldehydes as minor constituents in a rectification column consisting of stripping section and rectifying section
US7393976B2 (en) * 2003-11-26 2008-07-01 Rohm And Haas Company Process for manufacturing reduced water content (meth)acrylic acid
DE102005019911A1 (en) 2005-04-27 2006-11-02 Basf Ag Rectifying separation of a liquid II containing acrylic acid and/or methacrylic acid and acrolein and/or methacrolein and acetone, comprises providing the liquid II containing acetone to a rectification column
SG11201507558XA (en) 2013-03-15 2015-10-29 Rohm & Haas Process for purifying (meth)acrylic acid

Also Published As

Publication number Publication date
FR2171910B1 (en) 1977-09-02
FR2171910A1 (en) 1973-09-28
DE2207184A1 (en) 1973-08-23
BE779549A (en) 1972-08-18
GB1346737A (en) 1974-02-13
DE2207184B2 (en) 1980-07-24
CA962698A (en) 1975-02-11

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Legal Events

Date Code Title Description
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed