Other

Pennwalt Corporation

Elf Atochem North America, Inc.

Atochem North America, Inc.

William J Tuszynski

Glenn T Carroll

Stanley R Sandler

John A Wismer

Michael J Lindstrom

Jeffrey H Yen

Paul J McElligott, Jr

John F Kennoy

Vijay R Srinivas

Ashley D Nevers

Alfred F Felgendreger

Dennis R Stevens

A process for removing sulfur from an organic polysulfide by reaction with an aqueous stripping solution of at least one sulfide salt and/or hydrosulfide salt in a multi-stage, continuous, countercurrent flow, reaction system wherein the sulfur is stripped from the polysulfide into the aqueous stripping solution phase which is separated from the polysulfide organic phase.

Process for removing sulfur from organic polysulfides

A process for dissolving wax, paraffin and/or sulfur deposits in an oil or gas pipeline or well comprises providing at the site of the deposit an acid and a compound which liberates carbon disulfide upon contact with the acid, whereby the deposit is dissolved by the liberated carbon disulfide.

Method for dewaxing oil and gas pipelines or wells

A composition, useful for dissolving sulfur, which comprises a major amount of a disulfide or polysulfide and a catalyst comprising one or more polyalkyleneoxyamines or polyamines, and methods for using the composition in a system to prevent sulfur-plugging, are disclosed.

Polyalkyleneoxyamine catalysts for dialkyl disulfides and/or

An organopolysulfide-impregnated catalyst composition usable to hydrotreat petroleum and other hydrocarbon feedstock is described. Also disclosed are processes for making and using the composition.

Organopolysulfide-impregnated catalyst and methods of preparation and use

A presulfiding agent which is a blend of an alkyl sulfide of the formula R.sub.1 S.sub.x R.sub.2 where R.sub.1 and R.sub.2 are alkyl groups having from 1 to 12 carbon atoms and x is 1 or 2 and an alkyl polysulfide of the formula R.sub.3 S.sub.y R.sub.4 wherein R.sub.3 and R.sub.4 are alkyl groups having from 1 to 20 carbon atoms and y is 2 to 8 provided that the total carbon atoms in R.sub.3 and R.sub.4 do not exceed 30 and y is greater than x, is disclosed herein along with a process employing said agent for sulfiding an oxidic hydrotreating catalyst to form a sulfided hydrotreating agent and a process of hydrotreating a petroleum fraction with such sulfided hydrotreating catalyst.

Presulfiding composition for preparing hydrotreating catalyst activity

Lead is recovered from lead-containing scrap metal in an electrolytic process employing an aqueous solution of C.sub.1-4 alkanesulfonic acid as the electrolyte at a high concentration, scrap lead as the anode, and an electroconductive cathode, impressing an electromotive force across the solution between the electrodes to provide a specified steady-state concentration of lead salt in the electrolyte, and continuing the process to deplete the anode and collect lead at the cathode.

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Milford, PA, United States of America

William J Tuszynski