GB486563A - Improvements in or relating to the separation of the constituents of organic-inorganic addition compounds - Google Patents
Improvements in or relating to the separation of the constituents of organic-inorganic addition compoundsInfo
- Publication number
- GB486563A GB486563A GB34132/36A GB3413236A GB486563A GB 486563 A GB486563 A GB 486563A GB 34132/36 A GB34132/36 A GB 34132/36A GB 3413236 A GB3413236 A GB 3413236A GB 486563 A GB486563 A GB 486563A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compound
- addition
- methyl acetate
- ether
- water
- 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.)
- 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
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/60—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
An organic compound is separated from its addition compound with an inorganic compound by reacting with an anhydrous organic addition agent which forms an addition compound with the inorganic compound or reacts exothermically therewith. The organic compound can be recovered, for example, by distillation, absorption or extraction. Addition compounds of aliphatic acids, e.g. acetic, propionic, and butyric, ethers, esters, ketones, amines, and amides with inorganic halides, e.g. halides of Al, B, Sn, Be, Ti, Si, Zr, Hf, Th, Cb, P, Cr, W, S, Ca, Ba, Sr, and Ta, are referred to. Dimethyl ether can be recovered from its addition compound with boron fluoride by adding methyl acetate and distilling off the ether. Alternatively, since the methyl acetate addition compound has the lower boiling point, by regulating the reflux methyl acetate can be recovered therefrom by distilling during continuous addition of methyl ether. In examples: (1) methyl acetate is added to (CH3)2O.BF3 and the ether distilled over at 38-40 DEG C.; (2) propionic acid is added to CH3COOH.BF3 and the mixture distilled at about 27 mm. and 32-35,5 DEG C., pure acetic acid coming over. The Specification as open to inspection under Sect. 91 gives equations for reaction of the addition compound with water to recover the organic compound which may be an alcohol, and for reacting a BF3-water complex with acetic acid which displaces the water. An additional example describes the treatment of BF3.H2O with ethylene at elevated temperature and pressure. A CO pressure of 600-900 atm. is imposed and the mixture heated to 175-180 DEG C. The reaction product gives off some BF3 on heating and on injecting steam gives an aqueous propionic acid condensate leaving a residue of BF3. 2.3-2.5 H2O. A further example describes the formation of a complex by heating CH3OH, BF3, and H2O at 230 DEG C. and 850 atm. CO pressure. The product is distilled while adding water, acetic acid coming over. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US486563XA | 1935-12-13 | 1935-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB486563A true GB486563A (en) | 1938-06-07 |
Family
ID=21955722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34132/36A Expired GB486563A (en) | 1935-12-13 | 1936-12-11 | Improvements in or relating to the separation of the constituents of organic-inorganic addition compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB486563A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2534017A (en) * | 1948-04-23 | 1950-12-12 | Du Pont | Catalyst recovery process |
| US2748145A (en) * | 1953-07-27 | 1956-05-29 | Du Pont | Chalcogenous compolexes |
| US2787529A (en) * | 1945-07-16 | 1957-04-02 | Walter A Winsten | Method for determining boron fluoride ether complex in a composition |
| US3126248A (en) * | 1964-03-24 | Process for producing purified |
-
1936
- 1936-12-11 GB GB34132/36A patent/GB486563A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3126248A (en) * | 1964-03-24 | Process for producing purified | ||
| US2787529A (en) * | 1945-07-16 | 1957-04-02 | Walter A Winsten | Method for determining boron fluoride ether complex in a composition |
| US2534017A (en) * | 1948-04-23 | 1950-12-12 | Du Pont | Catalyst recovery process |
| US2748145A (en) * | 1953-07-27 | 1956-05-29 | Du Pont | Chalcogenous compolexes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bauer | The preparation of fatty acid chlorides | |
| GB486563A (en) | Improvements in or relating to the separation of the constituents of organic-inorganic addition compounds | |
| Henne et al. | Improved preparation of trifluoroacetic acid | |
| US2211160A (en) | Process of recovering maleic anhydride | |
| Thomas et al. | The Preparation of Pure Eleostearic Acids from Chinese Wood Oil | |
| US2098206A (en) | Manufacture of alcohols | |
| US2089127A (en) | Manufacture of glycerol monolactate | |
| Boorman et al. | 145. Investigations of the olefinic acids. Part X. The formation of lactones from Δ α-and Δ β-n-butenoic and-pentenoic acids | |
| Haller et al. | Replacement of the diazo group by the acetoxy group | |
| Baumgarten et al. | The Carbonation and Carbethoxylation of Certain Esters Using Sodium Triphenylmethide Reagent1, 2, 3 | |
| GB793513A (en) | Process for the preparation of ª†-4-chloro-2-methylphenoxybutyric acid and derivatives thereof | |
| GB702823A (en) | Improvements in or relating to continuous fractional distillation | |
| GB744582A (en) | Improvements in and relating to the production of unsaturated acids and esters | |
| Gensler et al. | Synthesis of unsaturated fatty acids: vaccenic acid | |
| Farmer et al. | 225. Properties of conjugated compounds. Part XIX. The Michael reaction applied to a triene ester | |
| DE2251651A1 (en) | PRODUCTION OF ALKINES BY DEHYDROHALOGENATION | |
| GB961062A (en) | Method of separating benzoic acid from the crude product of the oxidation of toluene | |
| GB422564A (en) | Improvements in and apparatus for the manufacture and production of monomethylamine and dimethylamine | |
| Zelinski et al. | Pinacol Rearrangement of sym-p, p'-Dialkoxybenzopinacols | |
| US1971393A (en) | Bromine substituted allylester of 2-phenylquinoline-4-carboxylic acid | |
| Vogel | CCLXIII.—Syntheses of cyclic compounds. Part IV. The catalytic decomposition of suberic acid and the preparation of suberone directly from mixtures of suberic and azelaic acids | |
| Marshall | CCCXX.—Di iso propylmalonic acid and its derivatives | |
| US1488571A (en) | Process of preparing ethylene formochlorhydrin | |
| GB834278A (en) | Process for working up crude formamide | |
| DE704298C (en) | Process for the production and recovery of isopropyl acetate |