ES228244A1 - A procedure for the manufacture of organic thiophosphates (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Manufacturing method of organic thiophosphates characterized in that it corresponds to the formula ** (See formula) ** where X1 X <ub> 2 and X3 represent each one an oxygen or sulfur atom and where R1 R2 and R3 each represent an organic group chosen from the following: a) Branched or straight chain alkoyl group comprising 2 to 22 carbon atoms and can be replaced by halogens. b) Branched or straight chain alkoyl group comprising from 2 to 22 carbon atoms and at least one ester function or one ether-oxide function. c) An aryl group substituted by one or more straight or branched aliphatic chains having from 1 to 13 carbon atoms, each chain being able to verify one or more ester functions. d) An aryl group substituted at the same time by one or more straight or branched aliphatic chains having from 1 to 18 carbon atoms and by one or more halogen atoms. This procedure consists mainly of reacting a compound or a mixture of compounds of the formula ** (see formula) ** incorporated into a mineral or synthetic oil which is inert at the same time with the latter compounds and for the phosphorous sulfochloride according to such proportions that the oil represents 10 to 90% of the mixture made and eventually in the presence of water with a proportion such as PS Cl3 that the ratio of the number of PS molecules Cl3 with the number of gram equivalents of the compound or the mixture of compounds not exceeding 1/3, the reaction being conducted at a temperature that can range from 60 to 180ºC under atmospheric pressure when the reaction mixture contains molecules of the RXH form and under vacuum of 10 to 200mm. mercury when the reaction mixture contains molecules of the RXH form. (Machine-translation by Google Translate, not legally binding)