Abstract: The output oil from a solvent dewaxing unit is controlled so that it is provided as product oil when the wax content of the output oil is within a predetermined limit, or not provided as product oil when the wax content is not within the predetermined limit. The output oil from the dewaxing unit is sampled and solvent in the sample oil is removed. The solvent-free sample oil is chilled to a predetermined temperature. An analyzer receives the chilled sample oil and provides a signal corresponding to the wax content of the sample oil. A network coupled to the analyzer provides a control signal of one amplitude when the signal from the analyzer is within a predetermined limit and of another amplitude when the signal from the analyzer is not within the predetermined limit.

Abstract: A transformer oil processing sequence is disclosed. The process comprises contacting a naphthenic based oil with an oxygen-containing gas in the presence of a permanganate under mild oxidation conditions of temperature and pressure and caustic washing the resultant product. The caustic washed product is then subjected to two pass hydrogenation to provide a transformer oil having superior Doble oxidation resistance values.

Abstract: A transformer oil processing sequence is disclosed. The process comprises contacting a naphthenic based oil with an oxygen-containing gas in the presence of a free radical initiating catalyst under mild oxidation conditions of temperature and pressure, fractionally distilling the resultant product and then hydrogenating the oil.

Abstract: A refrigeration oil processing sequence is disclosed which produces a superior oil without the use of sulfuric acid treating and the resultant sludge problems. The process comprises contacting a naphthenic based oil with an oxygen-containing gas in the presence of a permanganate under mild oxidation conditions of temperature and pressure followed by adsorbent fractionation.

Abstract: A transformer oil processing sequence is disclosed which produces a superior oil without the use of large doses of sulfuric acid and the resultant sludge problems. The process comprises contacting a naphthenic based oil with an oxygen-containing gas in the presence of a catalytic amount of sulfuric acid under mild conditions of temperature and pressure and caustic washing the resultant product. The caustic washed product is then hydrogenated.

Abstract: Disclosed are lubricant compositions containing adducts of an amine with a phosphate ester of the formula: ##STR1## wherein R is hydrogen or alkyl having up to 25 carbon atoms in the chain, R' is hydrogen or alkyl having up to 7 carbon atoms except only one of R and R' can be hydrogen or octyl.

Abstract: A method for manufacturing a semi-fluid lubricant resistant to shear thickening to a controlled apparent viscosity is provided wherein a soap base containing about 14% soap is shear thickened and then diluted with oil to a desired soap content. The use of a soap base containing about 14% soap as opposed to the usual method of using a soap base containing about 5% soap surprisingly results in a finished semi-fluid lubricant which will not appreciably increase in viscosity during the handling and packaging process.

Abstract: Disclosed are lubricant compositions containing adducts of an amine with a phosphate ester of the formula: ##EQU1## wherein R is hydrogen or alkyl having up to 25 carbon atoms in the chain, R' is hydrogen or alkyl having up to 7 carbon atoms except only one of R and R' can be hydrogen or octyl.

Abstract: Described herein is a lubricating composition exhibiting vapor space rust protection, improved oxidation stability and air release properties comprising a mineral lubricating oil containing from 0.02 to 3.0 weight percent vapor space rust inhibitor such as a C.sub.8 -C.sub.10 aliphatic carboxylic acid; 0.001 to 0.3 wt % substituted heterocyclic antioxidant such as benzotriazole; 0.05 to 1.0 wt % of a rust inhibitor such as alkyl-succinic acid/alkyl acid phosphate/phenol; 0.001 to 0.500 wt % polymeric antifoamant such as a polyacrylate; 0.01 to 5.0 wt % of an aryl phosphate such as tricresylphosphate; and 0.01 to 2.00 wt % of a hindered alkyl phenol antioxidant such as 4-methyl-2, 6-di-t-butylphenol.