Patent GB-926371-A (GB)
Title: Metal salts phosphorous sulphide-hydrocarbon reaction products
IPC: C07F9/04
Filed: 1959-07-21
Abstract: In the preparation of metal-containing neutralized reaction products of phosphorus sulphide and polymeric hydrocarbons in which the polymer is reacted with from 1 to 50% of a phosphorus sulphide at from 200 DEG  to 600 DEG F., the product hydrolysed at from 300 DEG to 500 DEG F., and the hydrolysed product neutralized with a basic metal compound, the step in which the hydrolysed product is refluxed with a mixture of 0,5 to 2 mols. of water and from 2 to 20 mols. of an alkanol (1 to 3 carbons) per mol. of the basic metal compound, for from 0,25 to 5 hours, then neutralized and heated to remove the water and alkanol.  In modifications part of p  the water-alkanol mixture may be added and refluxed prior to the neutralization, and the remainder of the mixture added to the neutralization step, or alternatively, the reaction product is refluxed with part or all of the alkanol constituent, and the remainder if any and the water, added to the neutralization step. The polymers may be derived from mono-olefine or iso-mono-olefine hydrocarbons or mixtures thereof, of M.W.'s of 150 to 50,000, such as propylenes, butylenes and amylenes, and polybutene, and a mixture of butylenes and isobutylene polymerized in the presence of aluminium chloride, are exemplified. The basic metal compound may be a hydroxide, carbonate, oxide or sulphide of an alkali or an alkaline earth metal, or lead or mercuric oxide.  The products are clear and suitable as lubricating oil derivatives.ALSO:In the preparation of metal-containing neutralised reaction products of phosphorus sulphide and hydrocarbons, in which the hydrocarbon is reacted with from 1 to 50% of a phosphorus sulphide at from 200 to 600 DEG F., the product hydrolysed at from 300 to 500 DEG F., and the hydrolysed product neutralised with a basic metal compound, the hydrolysed product is refluxed with a mixture of 0.50 to 2 mols of water and from 2 to 20 mols of an alkanol (1 to 3 carbons) per mol of the basic metal compound for from 0.25 to 5 hours, then neutralised and heated to remove the water and alkanol.  In modifications part of the water-alkanol mixture may be added and refluxed prior to the neutralisation, and the remainder of the mixture added to the neutralisation step or alternatively the reaction product is refluxed with part or all of the alkanol constituent, and the remainder, if any, and the water added to the neutralisation step.  The hydrolysed phosphorous sulphide-hydrocarbon product may be contacted with adsorbent clay prior to the pretreatment to remove inorganic phosphorus and low molecular weight organic phosphorus compounds.  Hydrocarbons may be monoolefines, lubricating oil distillates, petrolatums or paraffin waxes, olefines obtained by the dehydrogenation of paraffins, aromatic hydrocarbons, or alkylated aromatic hydrocarbons or mono-olefinic or isomono-olefinic polymers or copolymers thereof, for example polybutene with a motor oil base. The basic metal compound may be a hydroxide, carbonate, oxide or sulphide of an alkali or an alkaline earth metal or lead or mercuric oxide.  The products are clear and are suitable as lubricating oil additives.