Phillips Petroleum Company

Other

Robert M Parlman

Clarence R Bresson

James B Kimble

Lyle D Burns

Charles M Selman

Benjamin R Robles

Tommy L Young

Richard C Doss

Marshall D Bishop

Lawrence M Fodor

Merlin R Lindstrom

Ralph P Williams

Wayne S Stewart

Roy C Lee

George G Dixon

A novel organophilic clay suspension medium prepared by admixing an organophilic clay with a hydrocarbon oil and an activator selected from the group consisting of phenyl hydroxyalkyl ethers and phenylalkanols. Optionally water may be added to the admixture for further improving the suspension medium.

Organophilic clay suspension medium

Carboxymethyl cellulose (CMC) with a moisture content in the range of 12 to 25 weight percent water can be formulated with hydrocarbon oils, anionic surfactants and suspending agents to provide stable suspensions. The suspended CMC does not tend to settle out and/or compact during extended periods of storage.

Stable suspensions of carboxymethyl cellulose and their preparation

The efficiency of metals separation using ore flotation is improved by the use of certain substituted hydrocarbylene trithiocarbonates as suppressants for undesired metals.

Trithiocarbonates as flotation reagents

3-Hydroxytrimethylene sulfides are useful in ore flotation processes as depressants for iron, nickel, lead and/or zinc.

Ore flotation

A process for recovering a metal sulfide mineral from ore by froth flotation using 1-alkyl substituted-2-mercaptoethanol as the flotation agent.

Recovering metal sulfides by flotation using mercaptoalcohols

Metal trithiocarbonates such as Na.sub.2 CS.sub.3 are useful depressant for such sulfided minerals as copper and iron sulfides in molybdenum recovery.

Metal trithiocarbonates as depressants

A composition and process are provided for the recovery of the values of zinc, molybdenum, copper, lead, iron (pyrite), and iron-containing small amounts of gold or uranium, or both, from ores comprising these mineral sulfides. The aqueous composition is the impure form of an alkali metal alkyl trithiocarbonate compound. The process comprises employing said aqueous composition as a collection agent for the above minerals in an ore recovery process. A process for the separation of zinc values from lead values from a ore comprising both is provided by employing an alkali metal alkyl trithiocarbonate compound as a collection agent for zinc. In addition, both a composition and process are provided for the recovery of the values of iron, copper, and lead from ores comprising these values. The composition consists essentially of a dispersant and an impure form of an alkali metal alkyl trithiocarbonate compound. The process comprises employing this composition as a collection agent for the above minerals in an ore recovery process.

Flotation reagents

Trithiocarbonate flotation reagents

A composition and process are provided for the recovery of the values of zinc, molybdenum, copper, lead, iron (pyrite), and iron-containing small amounts of gold or uranium, or both, from ores comprising these mineral sulfides. The aqueous composition is the impure form of an alkali metal alkyl trithiocarbonate compound. The process comprises employing said aqueous composition as a collection agent for the above minerals in an ore recovery process. A process for the separation of zinc values from lead values from an ore comprising both is provided by employing an alkali metal alkyl trithiocarbonate compound as a collection agent for zinc. In addition, both a composition and process are provided for the recovery of the values of iron, copper, and lead from ores comprising these values. The composition consists essentially of a dispersant and an impure form of an alkali metal alkyl trithiocarbonate compound. The process comprises employing this composition as a collection agent for the above minerals in an ore recovery process.

Sodium diethyl dithiophosphate and sodium ethyl trithiocarbonate are used for the flotation of molybdenum and/or copper containing ores. S-allyl-S'-n-butyl trithiocarbonate and N,N-dimethyl-S-benzyl dithiocarbamate are used for the flotation of molybdenum and/or copper containing ores. Sodium isopropyl xanthate and sodium n-butyl trithiocarbonate are used for the flotation of lead.

Ore flotation with combined collectors

Mercapto polycarboxylic acids, especially the trithiocarbonate derivatives thereof and alkali metal salts, are employed as treating agents in mineral recovery operations.

Polycarboxylic acid derivatives and uses

A catalyst system is provided comprising a titanium catalyst component produced by contacting a benzenediazonium tetrafluoroborate with a titanium tetrahalide such as titanium tetrachloride and a cocatalyst. Preferred cocatalysts are organoaluminum compounds. The catalyst system of this invention is broadly suitable for this polymerization of 1-olefins and is particularly suited for the production of high molecular weight ethylene polymers.

Polymerization using benzenediazonium tetrafluoroborate/titanium

S-allyl-S'-n-butyl trithiocarbonate and N,N-dimethyl-S-benzyl dithiocarbamate are used for the flotation of molybdenum and/or copper containing ores. Sodium isopropyl xanthate and sodium n-butyl trithiocarbonate are used for the flotation of lead.

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

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Bartlesville, OK, United States of America

Robert M Parlman