FR2171910B1 - - Google Patents
Info
- Publication number
- FR2171910B1 FR2171910B1 FR7205027A FR7205027A FR2171910B1 FR 2171910 B1 FR2171910 B1 FR 2171910B1 FR 7205027 A FR7205027 A FR 7205027A FR 7205027 A FR7205027 A FR 7205027A FR 2171910 B1 FR2171910 B1 FR 2171910B1
- Authority
- FR
- France
- 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
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)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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 (pl) | 1972-01-31 | 1972-02-10 | |
FR7205027A FR2171910B1 (pl) | 1972-01-31 | 1972-02-15 | |
DE2207184A DE2207184B2 (de) | 1972-01-31 | 1972-02-16 | Verfahren zur Reinigung von Acrylsäure |
BE779549A BE779549A (fr) | 1972-01-31 | 1972-02-18 | Procede de purification de l'acide acrylique |
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 (pl) | 1972-01-31 | 1972-02-10 | |
FR7205027A FR2171910B1 (pl) | 1972-01-31 | 1972-02-15 | |
DE2207184A DE2207184B2 (de) | 1972-01-31 | 1972-02-16 | Verfahren zur Reinigung von Acrylsäure |
BE779549A BE779549A (fr) | 1972-01-31 | 1972-02-18 | Procede de purification de l'acide acrylique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2171910A1 FR2171910A1 (pl) | 1973-09-28 |
FR2171910B1 true FR2171910B1 (pl) | 1977-09-02 |
Family
ID=32046140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7205027A Expired FR2171910B1 (pl) | 1972-01-31 | 1972-02-15 |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE779549A (pl) |
CA (1) | CA962698A (pl) |
DE (1) | DE2207184B2 (pl) |
FR (1) | FR2171910B1 (pl) |
GB (1) | GB1346737A (pl) |
NL (1) | NL7201773A (pl) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3641996A1 (de) * | 1986-12-09 | 1988-06-16 | Basf Ag | Verfahren zum abtrennen von aldehyden aus (alpha),(beta)-olefinisch ungesaettigten carbonsaeuren |
CA2001397A1 (en) * | 1988-10-28 | 1990-04-28 | Tadao Shimomura | Method for production of acrylate and acrylate-containing polymer |
DE4201697A1 (de) * | 1992-01-23 | 1993-07-29 | Basf Ag | Verfahren zur reinigung von rohsaeuren (alpha),(beta)-monoethylenisch ungesaettigter carbonsaeuren |
DE4335172A1 (de) * | 1993-10-15 | 1995-04-20 | Basf Ag | Verfahren zur Reinigung von Roh-(Meth)acrylsäure |
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 (de) * | 1995-01-18 | 1996-07-25 | Basf Ag | Verfahren der rektifikativen Abtrennung von (Meth)acrylsäure aus einem (Meth)acrylsäure enthaltenden Gemisch |
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 |
US7393976B2 (en) * | 2003-11-26 | 2008-07-01 | Rohm And Haas Company | Process for manufacturing reduced water content (meth)acrylic acid |
DE102005019911A1 (de) | 2005-04-27 | 2006-11-02 | Basf Ag | Verfahren der rektifikativen Auftrennung einer Acrylsäure und/oder Methacrylsäure enthaltenden Flüssigkeit |
SG11201507558XA (en) | 2013-03-15 | 2015-10-29 | Rohm & Haas | Process for purifying (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/de not_active Withdrawn
- 1972-02-18 BE BE779549A patent/BE779549A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2207184B2 (de) | 1980-07-24 |
CA962698A (en) | 1975-02-11 |
BE779549A (fr) | 1972-08-18 |
GB1346737A (en) | 1974-02-13 |
NL7201773A (pl) | 1973-08-14 |
DE2207184A1 (de) | 1973-08-23 |
FR2171910A1 (pl) | 1973-09-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |