GB462182A - Process for the manufacture of isocyanates - Google Patents

Process for the manufacture of isocyanates

Info

Publication number
GB462182A
GB462182A GB24598/35A GB2459835A GB462182A GB 462182 A GB462182 A GB 462182A GB 24598/35 A GB24598/35 A GB 24598/35A GB 2459835 A GB2459835 A GB 2459835A GB 462182 A GB462182 A GB 462182A
Authority
GB
United Kingdom
Prior art keywords
amines
isocyanate
ammonia
phosgene
produced
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
GB24598/35A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB24598/35A priority Critical patent/GB462182A/en
Publication of GB462182A publication Critical patent/GB462182A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14—The ring being saturated

Abstract

Isocyanates are produced by reacting phosgene with halogen salts of primary aliphatic or cycloaliphatic amines under such conditions that the liberated halogen acid is removed from the reaction mixture; this may be effected by passing in a rapid stream of phosgene (which may be mixed with a gaseous diluent) or by effecting the reaction in a liquid diluent which will not dissolve the halogen acid, such as mono- or di-chlorbenzene, toluene or xylene. Suitable amines are butyl, isobutyl, hexyl, dodecyl, octadecyl, oleyl, benzyl, b -phenylethyl, and ac tetrahydroa and b -naphthyl amines, ethylene diamine, mixtures of amines formed by hydrogenating in the presence of ammonia natural fats and oils, or their fatty acids, and hexahydroaniline. Examples describe the reaction of phosgene on the hydrochlorides of octadecylamine oleylamine, benzylamine, the amines from palm kernel fat, cyclohexylamine, b -phenylethylamine, dodecylamine, ac tetrahydro-b -naphthylamine, butylamine, chlorethylamine, naphtheneamines, amines from the acids produced by the oxidation of paraffins or from train oils. Substituted ureas are formed by reacting octadecyl isocyanate with ammonia or octadecylamine, benzyl isocyanate with aniline, cyclohexyl isocyanate with ammonia or water, b -phenyl-ethyl isocyanate with water, and butyl isocyanate with ammonia. b -Chlorethylamine hydrochloride is produced by dissolving ethanolamine in 1.2-4-trichlorbenzene and treating with hydrogen chloride.
GB24598/35A 1935-09-03 1935-09-03 Process for the manufacture of isocyanates Expired GB462182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24598/35A GB462182A (en) 1935-09-03 1935-09-03 Process for the manufacture of isocyanates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24598/35A GB462182A (en) 1935-09-03 1935-09-03 Process for the manufacture of isocyanates

Publications (1)

Publication Number Publication Date
GB462182A true GB462182A (en) 1937-03-03

Family

ID=10214172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24598/35A Expired GB462182A (en) 1935-09-03 1935-09-03 Process for the manufacture of isocyanates

Country Status (1)

Country Link
GB (1) GB462182A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852085C (en) * 1941-07-03 1952-10-13 Basf Ag Process for the production of isocyanates
US2837554A (en) * 1958-06-03 Production of isocyanates
US3188337A (en) * 1953-03-27 1965-06-08 Bayer Ag Preparation of organic isocyanates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2837554A (en) * 1958-06-03 Production of isocyanates
DE852085C (en) * 1941-07-03 1952-10-13 Basf Ag Process for the production of isocyanates
US3188337A (en) * 1953-03-27 1965-06-08 Bayer Ag Preparation of organic isocyanates

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