FR2398037A1 - Procede de separation d'acide methacrylique d'un melange d'esterification - Google Patents
Procede de separation d'acide methacrylique d'un melange d'esterificationInfo
- Publication number
- FR2398037A1 FR2398037A1 FR7821746A FR7821746A FR2398037A1 FR 2398037 A1 FR2398037 A1 FR 2398037A1 FR 7821746 A FR7821746 A FR 7821746A FR 7821746 A FR7821746 A FR 7821746A FR 2398037 A1 FR2398037 A1 FR 2398037A1
- Authority
- FR
- France
- Prior art keywords
- methacrylic acid
- esterification mixture
- methyl methacrylate
- separating
- separating methacrylic
- 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.)
- Withdrawn
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
- C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8799177A JPS5424814A (en) | 1977-07-22 | 1977-07-22 | Separation of methyl methacrylate |
JP8798977A JPS5424812A (en) | 1977-07-22 | 1977-07-22 | Separation of methyl methacrylate |
JP8799077A JPS5424813A (en) | 1977-07-22 | 1977-07-22 | Separation of methacrylic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2398037A1 true FR2398037A1 (fr) | 1979-02-16 |
Family
ID=27305652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7821746A Withdrawn FR2398037A1 (fr) | 1977-07-22 | 1978-07-21 | Procede de separation d'acide methacrylique d'un melange d'esterification |
Country Status (5)
Country | Link |
---|---|
CS (1) | CS214895B2 (nl) |
DE (1) | DE2832202A1 (nl) |
FR (1) | FR2398037A1 (nl) |
GB (1) | GB2001315B (nl) |
NL (1) | NL7807420A (nl) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3161884D1 (en) * | 1980-06-20 | 1984-02-16 | Asahi Chemical Ind | Process for purifying methyl methacrylate |
US4464229A (en) * | 1981-07-09 | 1984-08-07 | Nippon Shokubai Kagaku Kogyo Co. Ltd. | Process for producing acrylic or methacrylic esters |
US4554054A (en) * | 1983-12-09 | 1985-11-19 | Rohm And Haas Company | Methacrylic acid separation |
US4879412A (en) * | 1985-03-14 | 1989-11-07 | Mitsui Toatsu Chemicals, Inc. | Purification process of methacrylic acid |
US5435892A (en) * | 1993-08-30 | 1995-07-25 | Mitsubishi Rayon Co., Ltd. | Process for separating methanol and methyl acrylate or methyl methacrylate |
US6084127A (en) * | 1997-02-28 | 2000-07-04 | Nippon Shokubai Co Ltd | Method for recovering acrylic acid |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1579107A (nl) * | 1967-07-11 | 1969-08-22 | ||
FR2002126A1 (nl) * | 1968-02-17 | 1969-10-03 | Knapsack Ag | |
FR2202876A1 (en) * | 1972-10-10 | 1974-05-10 | Nippon Catalytic Chem Ind | Acrylic or methacrylic esters - by continuous esterification of acrylic or methacrylic acid with methanol or ethanol |
-
1978
- 1978-07-10 NL NL7807420A patent/NL7807420A/nl not_active Application Discontinuation
- 1978-07-11 CS CS464278A patent/CS214895B2/cs unknown
- 1978-07-19 GB GB7830309A patent/GB2001315B/en not_active Expired
- 1978-07-21 DE DE19782832202 patent/DE2832202A1/de not_active Withdrawn
- 1978-07-21 FR FR7821746A patent/FR2398037A1/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1579107A (nl) * | 1967-07-11 | 1969-08-22 | ||
FR2002126A1 (nl) * | 1968-02-17 | 1969-10-03 | Knapsack Ag | |
FR2202876A1 (en) * | 1972-10-10 | 1974-05-10 | Nippon Catalytic Chem Ind | Acrylic or methacrylic esters - by continuous esterification of acrylic or methacrylic acid with methanol or ethanol |
Also Published As
Publication number | Publication date |
---|---|
CS214895B2 (en) | 1982-06-25 |
NL7807420A (nl) | 1979-01-24 |
GB2001315B (en) | 1982-03-24 |
GB2001315A (en) | 1979-01-31 |
DE2832202A1 (de) | 1979-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |