GB805029A - Improvements in the recovery of acrylamide from aqueous solution - Google Patents

Improvements in the recovery of acrylamide from aqueous solution

Info

Publication number
GB805029A
GB805029A GB27510/57A GB2751057A GB805029A GB 805029 A GB805029 A GB 805029A GB 27510/57 A GB27510/57 A GB 27510/57A GB 2751057 A GB2751057 A GB 2751057A GB 805029 A GB805029 A GB 805029A
Authority
GB
United Kingdom
Prior art keywords
acrylamide
azeotrope
aqueous solution
water
crystallizes
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
Application number
GB27510/57A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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.)
Filing date
Publication date
Application filed by BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB805029A publication Critical patent/GB805029A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00—Carboxylic acid amides
    • C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/02—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
    • C07C233/09—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to carbon atoms of an acyclic unsaturated carbon skeleton

Abstract

Acrylamide is recovered from aqueous solution by adding excess of an organic solvent which forms an azeotrope with water and in which acrylamide has a greater solubility at the boiling point of the azeotrope than at lower temperatures, distilling off the water azeotropically, cooling the residue, and separating the acrylamide which crystallizes. The process is preferably carried out at reduced pressure and at a temperature below the melting point of acrylamide, preferably between 30 DEG and 50 DEG C. Solvents specified are ethyl, butyl and amyl acetate, benzene, chloroform, dichloroethane and amyl alcohol. The process may be operated continuously or discontinuously. Specification 631,592, [Group IV (b)], is referred to.ALSO:Acrylamide is recovered from aqueous solution by adding excess of an organic solvent which forms an azeotrope with water and in which acrylamide has a greater solubility at the boiling point of the azeotrope than at lower temperatures, distilling off the water azeotropically, cooling the residue, and separating the acrylamide which crystallizes. The process is preferably carried out at reduced pressure and at a temperature below the melting point of acrylamide, preferably between 30 DEG and 50 DEG C. Solvents specified are ethyl, butyl and amyl acetate, benzene, chloroform, dichloroethane and amyl alcohol. The process may be operated continuously or discontinuously. Specification 631,592 is referred to.
GB27510/57A 1956-09-19 1957-09-02 Improvements in the recovery of acrylamide from aqueous solution Expired GB805029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE805029X 1956-09-19

Publications (1)

Publication Number Publication Date
GB805029A true GB805029A (en) 1958-11-26

Family

ID=6722261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27510/57A Expired GB805029A (en) 1956-09-19 1957-09-02 Improvements in the recovery of acrylamide from aqueous solution

Country Status (1)

Country Link
GB (1) GB805029A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196178A (en) * 1962-03-28 1965-07-20 Rohm & Haas Process for purifying acrylamide or alpha-methacrylamide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196178A (en) * 1962-03-28 1965-07-20 Rohm & Haas Process for purifying acrylamide or alpha-methacrylamide

Similar Documents

Publication Publication Date Title
JPS5592400A (en) Purification of stevioside
GB805029A (en) Improvements in the recovery of acrylamide from aqueous solution
GB818211A (en) Manufacture of pure terephthalic acid
GB884184A (en) Improvements in or relating to the production of new compounds from wood
GB810050A (en) Aspirin crystallisation
US2410948A (en) Derivatives of 3, 4-dihydroxy-thiophan and process for the manufacture of same
GB816208A (en) Trimethylolpropane
GB855717A (en) Method of recovering sulfenamides from solution in organic solvents
GB797797A (en) Process for recovering pure isophthalic and terephthalic acid
GB855586A (en) Process for the manufacture and recovery of chlorendic acid
GB746413A (en) Method of recovering para-nitrochlorobenzene
SU136353A1 (en) Method of producing menthol
GB812701A (en) Improvements in or relating to the production of radioactive phosphorus
GB811134A (en) Improvements in or relating to the purification of esters of hecogenin
GB1023856A (en) Method for purifying aqueous solutions of methylbutynol
GB997324A (en) Improvements in or relating to the production of acrylic acid
GB790760A (en) Recovering trimethylolethane
GB826240A (en) Improvements in or relating to the production of methanol and acetic acid from mixtures obtained by the hydrolysis of methyl acetate
GB794618A (en) Pyridine purification process
GB602833A (en) Improvements in or relating to saccharification of cellulosic materials
GB866365A (en) Trimethylolethane
GB748413A (en) Manufacture of fluorinated ketals and acetals
GB799731A (en) A stereoisomer of cycloheximide and the manufacture thereof
FR1163427A (en) Process for recovering reaction solvents
GB754010A (en) Process for recovering fumagillin from an aqueous solution thereof