Abstract: A blend of certain xanthates with mercaptan/glycol combinations produce collector compositions which yield improved results in ore flotation.

Abstract: A novel aqueous metal cleaning composition consisting essentially of a Group IA or IIA metal hydroxide and at least one active metal cleaning ingredient of the formula ##STR1## wherein R can be any hydrocarbylene radical having 1 to 6 carbon atoms, X is any H or OH, M is any group IA or IIA metal and n is the valence of M.

Abstract: A composition comprising a mercaptan, an imidazoline and a frother has been found to synergistically increase gold recovery over the recovery achievable with mercaptan and imidazoline alone.

Abstract: Fulvene and hydrocarbyl substituted fulvenes are disclosed as mineral collectors for ore flotation processes, particularly for molybdenum sulfide recovery.

Abstract: The antiknock properties of fuel compositions are improved by adding thereto one or more compounds of the general formula ##STR1## wherein R is a hydrocarbon group, R.sup.1, and R.sup.2 are hydrogen or hydrocarbon groups and R.sup.I and R.sup.II are substituted or unsubstituted arylene groups.

Abstract: Recovery of copper and iron from ores is enhanced by adding beta-mercaptoethanol as a depressant to a froth flotation process. Flotation of sulfides of zinc and lead is reduced.

Abstract: A process for the recovery of molybdenum and copper values from an ore comprising the same is provided which comprises employing an oxazine compound as a collection agent.

Abstract: An extender oil characterized as having a viscosity at 100.degree. F. in a range of about 40 to about 250 SUS and an aromatic content in the range of about 60 to about 85 wt % of the total collector composition of which about 10 to about 20 wt % of the total collector composition is chosen from among benzothiophenes and dibenzothiophenes. The above-described extender oil blended with the tall oil in a ratio of tall oil to extender oil in a range of about 75 wt %: to about 25 wt % to about 25 wt %:about 75 wt %. The extender oil described above blended with a fatty amine in a ratio of fatty amine to extender oil in a range of about 50 wt %:50 wt % to about 10 wt %:90 wt %. The flotation process for recovering phosphates and/or potash employing the compositions described above.

Abstract: S-Allyl-S'-n-butyl-trithiocarbonate and S-benzyl-S'-n-butyl-trithiocarbonate, their use and flotation agents and a process to make these novel compositions are disclosed.

Abstract: Ashless hydrocarbon fuel compositions comprising a hydrocarbon fuel for a combustion engine and bis(disubstituted aminomethyl)phenol. Ashless lubricating compositions comprising a lubricating stock and bis(disubstituted aminomethyl)phenol. Bis(disubstituted aminomethyl)phenols, particularly bis(disubstituted aminomethyl)alkyl phenols as novel compositions of matter.

Abstract: Liquid hydrocarbon fuel compositions are provided containing antiknock quantities of ashless antiknock additives comprising cyclic diamines selected from 1,4-diazacycloalkanes.

Abstract: A flotation agent comprising both an aromatic hydrocarbon oil and a dihydrocarbyl trithiocarbonate improves the collecting and separating efficiency of an ore froth flotation process as compared to using any one of the ingredients of the flotation agent alone. The flotation agent and process are particularly useful for the recovery of molybdenum minerals.

Abstract: Hydrocarbon lube oil or hydrocarbon fuel for a combustion engine containing an amount of substituted dihydro oxazine sufficient to stabilize the hydrocarbon lube oil or hydrocarbon fuel against oxidative deterioration. A method for stabilizing either hydrocarbon lube oil or hydrocarbon fuel for a combustion engine against oxidative deterioration in which an oxidation stabilizing amount of substituted dihydro oxazine is added to the lube oil or the hydrocarbon fuel.

Abstract: Phenol compounds are O-alkylated with olefins in the presence of acid resin catalysts to give aryl alkyl ethers. In a preferred embodiment, the catalyst comprises perfluorosulfonic acid ion exchange resins.

Abstract: A process for recovering copper-bearing mineral sulfides from a froth-floated, metallurgical concentrate by admixing the concentrate with a sufficient amount of N-mercaptoalkyl amide to depress the copper-bearing mineral sulfides during a flotation and recovering the non-floating copper-bearing mineral sulfides from the flotation process. In an embodiment, copper-bearing mineral sulfides are subjected to flotation process in the presence of a flotation agent with recovery of floated metallurgical concentrate containing copper-bearing mineral sulfides and thereafter refloating the metallurgical concentrate with admixing with N-mercaptoalkyl amide depressant to recover the non-floating copper-bearing mineral sulfides.

Abstract: A process for selectively alkylating a phenolic compound in the ortho-position which comprises reacting a phenolic compound with an alkanol in the presence of a boron trifluoride etherate catalyst and optionally in the presence of a solvent such as aqueous and non-aqueous inorganic acids.

Abstract: The octane quality of a fuel for an internal combustion engine is improved by mixing halogenated substituted fulvenes with the fuel for an internal combustion engine.