BE643942A - - Google Patents
Info
- Publication number
- BE643942A BE643942A BE643942DA BE643942A BE 643942 A BE643942 A BE 643942A BE 643942D A BE643942D A BE 643942DA BE 643942 A BE643942 A BE 643942A
- Authority
- BE
- Belgium
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
-
- 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
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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR928802A FR1359885A (fr) | 1963-03-21 | 1963-03-21 | Procédé de fabrication d'acide acrylique glacial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE643942A true BE643942A (es) | 1964-06-15 |
Family
ID=8799784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE643942D BE643942A (es) | 1963-03-21 | 1964-02-18 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3432401A (es) |
| JP (1) | JPS4827292B1 (es) |
| BE (1) | BE643942A (es) |
| DE (1) | DE1468956A1 (es) |
| ES (1) | ES296656A1 (es) |
| FR (1) | FR1359885A (es) |
| GB (1) | GB1055532A (es) |
| LU (1) | LU45409A1 (es) |
| NL (1) | NL6401921A (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2020172A1 (es) * | 1968-10-08 | 1970-07-10 | Asahi Chemical Ind |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3493471A (en) * | 1967-12-01 | 1970-02-03 | Dow Chemical Co | Acrylic acid purification |
| US3527677A (en) * | 1969-03-06 | 1970-09-08 | Goodrich Co B F | Process for dehydration of aqueous acrylic acid solutions by extractive - azeotropic distillation with 2-ethylhexanol or 2-ethylhexylacrylate |
| BE786398A (fr) * | 1971-07-21 | 1973-01-18 | Basf Ag | Procede de preparation de l'acide acrylique anhydre |
| DE2241714A1 (de) * | 1972-08-24 | 1974-03-28 | Basf Ag | Verfahren zur abtrennung von acrylsaeure aus den reaktionsgasen der propylenoder acroleinoxydation |
| US4021310A (en) * | 1972-12-22 | 1977-05-03 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Method for inhibiting the polymerization of acrylic acid or its esters |
| FR2394512A1 (fr) * | 1977-06-14 | 1979-01-12 | Rhone Poulenc Ind | Procede de separation d'acide acrylique a partir de ses solutions dans le phosphate de tri-n-butyle |
| US4820385A (en) * | 1988-02-18 | 1989-04-11 | Monsanto Company | Purification of alkyl glyoxylate in a continuous column by azeotropic distillation |
| US6084127A (en) * | 1997-02-28 | 2000-07-04 | Nippon Shokubai Co Ltd | Method for recovering acrylic acid |
| US6982026B2 (en) * | 2001-03-15 | 2006-01-03 | Tate & Lyle Ingredients Americas, Inc. | Azeotropic distillation process for producing organic acids or organic acid amides |
| US6926810B2 (en) * | 2001-03-15 | 2005-08-09 | A. E. Staley Manufacturing Co. | Process for obtaining an organic acid from an organic acid ammonium salt, an organic acid amide, or an alkylamine organic acid complex |
| US6984293B2 (en) * | 2001-03-15 | 2006-01-10 | Tate & Lyle Ingredients | Azeotropic distillation of cyclic esters of hydroxy organic acids |
| US20030150705A1 (en) * | 2002-01-08 | 2003-08-14 | Deshpande Sanjeev D. | Acrylic acid recovery utilizing ethyl acrylate and selected co-solvents |
| TWI254648B (en) * | 2002-05-01 | 2006-05-11 | Rohm & Haas | Process for manufacturing high purity methacrylic acid |
| CN113784943A (zh) | 2019-04-29 | 2021-12-10 | 埃科莱布美国股份有限公司 | 含氧氨基酚化合物和防止单体聚合的方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1668380A (en) * | 1923-12-28 | 1928-05-01 | Distilleries Des Deux Sevres | Continuous process for the dehydration of volatile fatty acids |
| US1915002A (en) * | 1929-03-19 | 1933-06-20 | Us Ind Alcohol Co | Process of obtaining fatty acids in anhydrous state from aqueous solutions |
| US2033978A (en) * | 1932-04-01 | 1936-03-17 | Dreyfus Henry | Concentration of lower aliphatic acids |
| FR1169740A (fr) * | 1956-03-22 | 1959-01-05 | Solvay Werke Gmbh | Procédé de concentration d'acide acrylique aqueux |
| US3337740A (en) * | 1962-02-13 | 1967-08-22 | Deering Milliken Res Corp | Process for separating acrylic acid from impurities |
-
1963
- 1963-03-21 FR FR928802A patent/FR1359885A/fr not_active Expired
-
1964
- 1964-02-12 LU LU45409D patent/LU45409A1/xx unknown
- 1964-02-18 BE BE643942D patent/BE643942A/xx unknown
- 1964-02-20 ES ES0296656A patent/ES296656A1/es not_active Expired
- 1964-02-25 DE DE19641468956 patent/DE1468956A1/de active Pending
- 1964-02-27 NL NL6401921A patent/NL6401921A/xx unknown
- 1964-03-18 US US352829A patent/US3432401A/en not_active Expired - Lifetime
- 1964-03-19 JP JP39015066A patent/JPS4827292B1/ja active Pending
- 1964-03-19 GB GB11743/64A patent/GB1055532A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2020172A1 (es) * | 1968-10-08 | 1970-07-10 | Asahi Chemical Ind |
Also Published As
| Publication number | Publication date |
|---|---|
| LU45409A1 (es) | 1964-04-13 |
| FR1359885A (fr) | 1964-04-30 |
| JPS4827292B1 (es) | 1973-08-21 |
| US3432401A (en) | 1969-03-11 |
| DE1468956A1 (de) | 1969-01-02 |
| NL6401921A (es) | 1964-09-22 |
| ES296656A1 (es) | 1964-05-01 |
| GB1055532A (en) | 1967-01-18 |