Patent GB-343948-A (GB)
Title: The manufacture of conversion products of higher paraffin hydrocarbons
IPC: C10M105/52
Filed: 1929-09-11
Abstract: Unsaturated hydroxy derivatives of hydrocarbons obtained by treating halogenated technical mixtures of paraffin hydrocarbons containing more than eight carbon atoms and at least two halogen atoms in the molecule, in an aqueous medium, with caustic alkalies, alkali carbonates or alkaline earths may be used as lubricating and greasing agents for fibres.  In examples, (1) tri-chlorinated hard paraffin, obtained by direct chlorination of hard paraffin of average molecular weight 367 is heated in an autoclave with aqueous sodium hydroxide. The product, which may be added to emulsions used in the textile and leather industries contains hydroxy groups and one chlorine atom per molecule and is unsaturated; (2) tetrachlorinated hard paraffin, obtained by chlorination of hard paraffin of average molecular weight 367 is heated in an autoclave with aqueous sodium carbonate.  The product is saturated and contains three chlorine atoms per molecule: (3) heptachlorinated hard paraffin, obtained by chlorination of a hard paraffin of average molecular weight of 367 is heated in an autoclave with potassium carbonate: (4) the same chlorinated hard paraffin used in example 3 is heated under reflux with aqueous sodium hydroxide: (5) the same trichlorinated hard paraffin used in example 1 is heated in an autoclave with milk of lime: (6) a tetrachlorinated soft paraffin, obtained by chlorinating soft paraffin of average molecular weight 300 is heated in an autoclave with aqueous barium hydrate.ALSO:Unsaturated hydroxy derivatives of hydrocarbons are obtained by treating technical halogenated mixtures of paraffin hydrocarbons containing more than eight carbon atoms and at least two halogen atoms in the molecule, in an aqueous medium, with caustic alkalies, alkali carbonates (bicarbonates being excluded) or alkaline earths.  The products, which still contain halogen when the reaction is effected under mild conditions, may be used as assistants in the textile and leather industries, e.g. as lubricating and greasing agents.  In examples: (1) trichlorinated hard paraffin, obtained by direct chlorination of hard paraffin of average molecular weight 376, is heated in an autoclave with aqueous sodium hydroxide.  The product, which may be added to emulsions used in the textile and leather industries, contains hydroxy groups and one chlorine atom per molecule and is unsaturated; (2) tetrachlorinated hard paraffin, obtained by chlorination of hard paraffin of average molecular weight 367 is heated in an autoclave with aqueous sodium carbonate.  The product is saturated and contains three chlorine atoms per molecule; (3) heptachlorinated hard paraffin, obtained by chlorination of a hard paraffin of average molecular weight of 367 is heated in an autoclave with potassium carbonate; (4) the same chlorinated hard paraffin used in example 3 is heated under reflux with aqueous sodium hydroxide; (5) the same trichlorinated hard paraffin used as example (1) is heated in an autoclave with milk of lime; (6) a tetrachlorinated soft paraffin, obtained by chlorinating soft paraffin of average molecular weight 300 is heated in an autoclave with aqueous barium hydrate.