Abstract: An improved sulfonate suitable for waterflooding is formed by sulfonating a blend of two alkyl aromatic feedstocks, one being a high molecular weight monoalkylbenzene while the second is a mixture of normal alkyl aromatic compounds such as monoalkyl benzenes, dialkylbenzenes, and diphenyl alkanes. This feedstock is either sulfonated after blending or before blending to provide a blended non-sulfonate/sulfonate ratio in the range of 0.10 to 0.25. The sulfonate effectiveness of this system increases as the non-sulfonate/sulfonate ratio increases.

Abstract: An anti-microbial composition consisting of ammoniated zinc compounds optionally formulated into surfactant formulations and toilet bars is presented.

Abstract: Sulfonates having an equivalent weight of about 300 to about 600 are saturated with carbon dioxide and injected into a petroliferous formation to improve a waterflood process.

Abstract: This invention is directed to stabilization of analytic standards comprising (a) an oil-soluble metal sulfonate wherein said metal is selected from the group consisting of molybdenum, vanadium, iron, boron, beryllium, tin, silver, copper, magnesium, or mixtures thereof, (b) a normally liquid hydrocarbon diluent and (c) a stabilizing amount of an oil-soluble amine compound.

Abstract: A process for producing oil-soluble anionic metal sulfonates is disclosed wherein an anionic metal acid anhydride or its corresponding hydrate is reacted with an oil-soluble sulfonic acid and a polyamine compound to produce the desired metal sulfonate. The metal constituent of the anionic metal acid anhydride is selected from the group consisting of silicon, molybdenum, vanadium, arsenic, phosphorus, selenium, boron and tellurium.

Abstract: a method for recovering hydrocarbons from a petroliferous formation is disclosed. The method comprises injecting into a petroliferous formation an effective amount of an aqueous mixture which contains about 0.5 to about 25 weight percent of an alkali metal hydrocarbon sulfonate mixture and recovering the displaced hydrocarbons from the formation. An important feature of the method is that the alkali metal hydrocarbon sulfonate mixture is prepared by the process of:a. sulfonating an admixture of (i) an aromatic-containing refinery stream and (ii) a synthetic hydrocarbon sulfonatable feedstock,B. recovering from the reaction mass of step (a) the admixture of hydrocarbon sulfonic acids, andC. converting the hydrocarbon sulfonic acids to the alkali metal salts.A suitable refinery stream is pale oil extract. Suitable synthetic sulfonatable feedstocks include alkaryl hydrocabons.