GB1346737A – Process for purification of acrylic acid
– Google Patents
GB1346737A – Process for purification of acrylic acid
– Google Patents
Process for purification of acrylic acid
Info
Publication number
GB1346737A
GB1346737A
GB573872A
GB573872A
GB1346737A
GB 1346737 A
GB1346737 A
GB 1346737A
GB 573872 A
GB573872 A
GB 573872A
GB 573872 A
GB573872 A
GB 573872A
GB 1346737 A
GB1346737 A
GB 1346737A
Authority
GB
United Kingdom
Prior art keywords
acrylic acid
purification
purified
8feb
phenylhydrazine
Prior art date
1972-01-31
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
Application number
GB573872A
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.)
Standard Oil Co
Original Assignee
Standard Oil Co
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.)
1972-01-31
Filing date
1972-02-08
Publication date
1974-02-13
1972-01-31
Priority to CA133,519A
priority
Critical
patent/CA962698A/en
1972-02-08
Application filed by Standard Oil Co
filed
Critical
Standard Oil Co
1972-02-08
Priority to GB573872A
priority
patent/GB1346737A/en
1972-02-10
Priority to NL7201773A
priority
patent/NL7201773A/xx
1972-02-15
Priority to FR7205027A
priority
patent/FR2171910B1/fr
1972-02-16
Priority to DE2207184A
priority
patent/DE2207184B2/en
1972-02-18
Priority to BE779549A
priority
patent/BE779549A/en
1974-02-13
Publication of GB1346737A
publication
Critical
patent/GB1346737A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
Abstract
1346737 Purifying acrylic acid STANDARD OIL CO 8Feb 1972 5738/72 Heading C2C [Also in Division C3] Acrylic acid containing aldehydes as impurities is purified by adding one or more of hydrazine, phenylhydrazine, aniline, monoethanolamine, ethylenediamine, glycine or sulphuric acid, and distilling to obtain a distillate of purified acrylic acid. The starting impure acrylic acid may be that obtained by the catalytic oxidation of propylene.
GB573872A
1972-01-31
1972-02-08
Process for purification of acrylic acid
Expired
GB1346737A
(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
GB1346737A
true
GB1346737A
(en)
1974-02-13
Family
ID=32046140
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB573872A
Expired
GB1346737A
(en)
1972-01-31
1972-02-08
Process for purification of acrylic acid
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)
Cited By (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0270999A1
(en)
*
1986-12-09
1988-06-15
BASF Aktiengesellschaft
Process for the separation of aldehydes from alpha, beta-olefinic unsaturated carboxylic acids
EP0372706A2
(en)
*
1988-10-28
1990-06-13
Nippon Shokubai Co., Ltd.
Process for production of acrylate and acrylate-containing polymer
GB2285046A
(en)
*
1993-12-24
1995-06-28
Sumitomo Chemical Co
Purifying acrylic acid
EP0685448A1
(en)
*
1994-05-31
1995-12-06
Rohm And Haas Company
Process for purifying acrylic acid
EP0713854A1
(en)
1994-11-23
1996-05-29
Basf Aktiengesellschaft
Process for purifying crude (meth)acrylic acid
EP0717029A2
(en)
1994-12-14
1996-06-19
BASF Aktiengesellschaft
Process for a rectificative separation of (meth)acrylic acid from a hydrophobic mixture containing crude (meth)acrylic acid
US5637222A
(en)
*
1995-01-18
1997-06-10
Basf Aktiengesellschaft
Process for the fractional separation of (meth)acrylic acid from a mixture containing (meth)acrylic acid
US5759358A
(en)
*
1994-05-31
1998-06-02
Rohm And Haas Company
Process for pure grade acrylic acid
US5855743A
(en)
*
1995-01-18
1999-01-05
Basf Aktiengesellschaft
Process of isolation of (Meth) acrylic acid
EP1535894A1
(en)
*
2003-11-26
2005-06-01
Rohm And Haas Company
Process for manufacturing reduced water content (meth)acrylic acid
US7323590B2
(en)
2005-04-27
2008-01-29
Basf Aktiengesellschaft
Process for rectificatively separating a liquid comprising acrylic acid and/or methacrylic acid
US9517999B2
(en)
2013-03-15
2016-12-13
Rohm And Haas Company
Process for purifying (meth)acrylic acid
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
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
1972
1972-01-31
CA
CA133,519A
patent/CA962698A/en
not_active
Expired
1972-02-08
GB
GB573872A
patent/GB1346737A/en
not_active
Expired
1972-02-10
NL
NL7201773A
patent/NL7201773A/xx
not_active
Application Discontinuation
1972-02-15
FR
FR7205027A
patent/FR2171910B1/fr
not_active
Expired
1972-02-16
DE
DE2207184A
patent/DE2207184B2/en
not_active
Withdrawn
1972-02-18
BE
BE779549A
patent/BE779549A/en
unknown
Cited By (22)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4828652A
(en)
*
1986-12-09
1989-05-09
Basf Aktiengesellschaft
Removal of aldehydes from α, β-olefinically unsaturated carboxylic acids
EP0270999A1
(en)
*
1986-12-09
1988-06-15
BASF Aktiengesellschaft
Process for the separation of aldehydes from alpha, beta-olefinic unsaturated carboxylic acids
EP0372706A2
(en)
*
1988-10-28
1990-06-13
Nippon Shokubai Co., Ltd.
Process for production of acrylate and acrylate-containing polymer
EP0372706A3
(en)
*
1988-10-28
1991-10-30
Nippon Shokubai Co., Ltd.
Process for production of acrylate and acrylate-containing polymer
US5210298A
(en)
*
1988-10-28
1993-05-11
Nippon Shokubai Kagaku Kogyo, Co., Ltd.
Method for production of acrylate and acrylate-containing polymer
SG85575A1
(en)
*
1993-12-24
2002-01-15
Sumitomo Chemical Co
Process for purifying acrylic acid
GB2285046A
(en)
*
1993-12-24
1995-06-28
Sumitomo Chemical Co
Purifying acrylic acid
GB2285046B
(en)
*
1993-12-24
1997-12-17
Sumitomo Chemical Co
Process for purifying acrylic acid
CN1117060C
(en)
*
1993-12-24
2003-08-06
住友化学工业株式会社
Process for purifying acrylic acid
EP0685448A1
(en)
*
1994-05-31
1995-12-06
Rohm And Haas Company
Process for purifying acrylic acid
US5571386A
(en)
*
1994-05-31
1996-11-05
Rohm And Haas Company
Process for grade acrylic acid
US5746892A
(en)
*
1994-05-31
1998-05-05
Rohm And Haas Company
Process for pure grade acrylic acid
US5759358A
(en)
*
1994-05-31
1998-06-02
Rohm And Haas Company
Process for pure grade acrylic acid
EP0713854A1
(en)
1994-11-23
1996-05-29
Basf Aktiengesellschaft
Process for purifying crude (meth)acrylic acid
US5961790A
(en)
*
1994-12-14
1999-10-05
Basf Aktiengesellschaft
Separation of (meth) acrylic acid by rectification
US6228227B1
(en)
1994-12-14
2001-05-08
Basf Aktiengesellschaft
Separation of (meth)acrylic acid by rectification
EP0717029A2
(en)
1994-12-14
1996-06-19
BASF Aktiengesellschaft
Process for a rectificative separation of (meth)acrylic acid from a hydrophobic mixture containing crude (meth)acrylic acid
US5855743A
(en)
*
1995-01-18
1999-01-05
Basf Aktiengesellschaft
Process of isolation of (Meth) acrylic acid
US5637222A
(en)
*
1995-01-18
1997-06-10
Basf Aktiengesellschaft
Process for the fractional separation of (meth)acrylic acid from a mixture containing (meth)acrylic acid
EP1535894A1
(en)
*
2003-11-26
2005-06-01
Rohm And Haas Company
Process for manufacturing reduced water content (meth)acrylic acid
US7323590B2
(en)
2005-04-27
2008-01-29
Basf Aktiengesellschaft
Process for rectificatively separating a liquid comprising acrylic acid and/or methacrylic acid
US9517999B2
(en)
2013-03-15
2016-12-13
Rohm And Haas Company
Process for purifying (meth)acrylic acid
Also Published As
Publication number
Publication date
DE2207184A1
(en)
1973-08-23
BE779549A
(en)
1972-08-18
DE2207184B2
(en)
1980-07-24
NL7201773A
(en)
1973-08-14
FR2171910A1
(en)
1973-09-28
FR2171910B1
(en)
1977-09-02
CA962698A
(en)
1975-02-11
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Legal Events
Date
Code
Title
Description
1974-07-03
PS
Patent sealed [section 19, patents act 1949]
1983-09-28
PCNP
Patent ceased through non-payment of renewal fee
