C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 9/00 (2006.01) C07F 9/30 (2006.01) C07F 9/38 (2006.01) C07F 9/48 (2006.01)
Patent
CA 2311950
The invention relates to a method for producing alkali and/or alkaline-earth salts of alkylphosphonous acids and dialkylphosphinic acids from elemental yellow phosphor and alkyl halides, characterised in that the reaction takes place in the presence of aqueous alkali or alkaline-earth hydroxide or mixtures thereof. The invention also relates to the use of the compounds obtained according to the inventive method for producing flameproofing agents, extracting agents and plant protection agents.
L'invention concerne un procédé pour la préparation de sels alcalins et/ou alcalino-terreux des acides alkylphosphoniques et des acides dialkylphosphiniques à partir de phosphore jaune élémentaire et d'halogénures d'alkyle, caractérisé en ce que la réaction s'effectue en présence d'hydroxyde alcalin ou alcalino-terreux aqueux ou de mélanges de ceux-ci. L'invention concerne également l'utilisation des composés préparés selon ce procédé pour la fabrication d'agents ignifuges, de produits d'extraction et de produits phytosanitaires.
Kolbe Gunter
Stelzer Othmar
Weferling Norbert
Clariant Gmbh
Clariant Produkte (deutschland) Gmbh
Fetherstonhaugh & Co.
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