Patents by Inventor Jay Y. Welsh
Jay Y. Welsh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4450148Abstract: A process of preparing manganite, MnOOH, from an aqueous manganese (II) nitrite solution by a fast batch decomposition in the presence of an "active" solid surface.Type: GrantFiled: September 30, 1982Date of Patent: May 22, 1984Assignee: Chemetals IncorporatedInventor: Jay Y. Welsh
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Patent number: 4448760Abstract: A process of preparing manganite, MnOOH, from an aqueous manganese (II) nitrite solution by a continuous two-step decomposition process in the presence of an "active" solid surface.Type: GrantFiled: September 30, 1982Date of Patent: May 15, 1984Assignee: Chemetals IncorporatedInventors: Jay Y. Welsh, Denis F. DeCraene, Irving Sochol
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Patent number: 4411878Abstract: A process of preparing Mn.sub.3 O.sub.4, by the reduction of higher manganese oxides, using methane as a reducing gas under controlled temperatures.Type: GrantFiled: September 30, 1982Date of Patent: October 25, 1983Assignee: Chemetals IncorporatedInventor: Jay Y. Welsh
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Patent number: 4310494Abstract: A method for thermally decomposing manganese nitrate in an aqueous solution containing alkali and/or alkaline earth nitrates including splashing said aqueous solution containing manganese nitrate to form droplets or sheets of solution, heating said droplets or sheets of solution to partially decompose each droplet or sheet of solution to form manganese dioxide and nitrogen dioxide, and reuniting said droplets or sheets of solution containing manganese dioxide with said aqueous solution containing manganese nitrate; and/or spraying said aqueous solution containing manganese nitrate to form droplets of solution, heating said droplets of solution to fully decompose each droplet to form nonstoichiometric manganese dioxide, and nitrogen dioxide, and recovering said nonstoichiometric manganese dioxide.Type: GrantFiled: December 16, 1980Date of Patent: January 12, 1982Assignee: Chemetals CorporationInventor: Jay Y. Welsh
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Patent number: 4292282Abstract: This invention relates to the recovery of molybdenum, vanadium, and aluminum, as well as of cobalt and nickel, from the residues of hydrodesulfurization catalysts.PRIOR ARTMolybdenum-containing catalysts are used in the petroleum industry for the hydrodesulfurization of hydrocarbons. The hydrodesulfurization treatment consists in contacting petroleum or a petroleum fraction with hydrogen in the presence of a catalyst so as to remove the sulfur as gaseous hydrogen sulfide. The catalysts used for said purpose generally comprise a support material made of alumina containing, as active components, either molybdenum and cobalt or molybdenum and nickel. Sometimes catalysts in which the support consists of silica in place of alumina are also used.The active components, i.e. molybdenum, cobalt and/or nickel, are present as oxides in the fresh catalysts. The percentages of active components are variable. In most cases, these percentages are of about 10-15% for molybdenum oxide (MoO.sub.Type: GrantFiled: April 7, 1980Date of Patent: September 29, 1981Assignee: Societe Europeenne des Derives du Manganese, en abrege Sedema Societe AnonymeInventors: Jay Y. Welsh, Pierre C. Picquet, Pierre D. Schyns
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Patent number: 4276268Abstract: A process for preparing manganese nitrate solution by leaching manganese ore containing manganese dioxide in an aqueous slurry containing dissolved nitrogen dioxide gas. The reaction is controlled by monitoring the pH of the aqueous slurry, and adjusting the relative concentration of the manganese ore containing manganese dioxide and/or the rate of addition of nitrogen dioxide containing gas, to establish and maintain the leaching reaction.Type: GrantFiled: October 9, 1979Date of Patent: June 30, 1981Assignee: Chemetals CorporationInventors: Jay Y. Welsh, Alain Mullier, Pierre C. Picquet
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Patent number: 4250149Abstract: A method for thermally decomposing manganese nitrate in an aqueous solution containing alkali and/or alkaline earth nitrates including splashing said aqueous solution containing manganese nitrate to form droplets or sheets of solution, heating said droplets or sheets of solution to partially decompose each droplet or sheet of solution to form manganese dioxide and nitrogen dioxide, and reuniting said droplets or sheets of solution containing manganese dioxide with said aqueous solution containing manganese nitrate; and/or spraying said aqueous solution containing manganese nitrate to form droplets of solution, heating said droplets of solution to fully decompose each droplet to form nonstoichiometric manganese dioxide, and nitrogen dioxide, and recovering said nonstoichiometric manganese dioxide.Type: GrantFiled: May 15, 1979Date of Patent: February 10, 1981Assignee: Chemetals CorporationInventor: Jay Y. Welsh
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Patent number: 4173617Abstract: A method for the preparation of manganous chloride solutions using copper as a redox intermediate in the reaction between manganese and chlorine. Treatment of manganese-containing materials with a copper solution results in oxidation and dissolution of the manganese and the formation of elemental copper. The copper is in turn dissolved by reaction with cupric or ferric ions, which are then regenerated by chlorine oxidation.Type: GrantFiled: February 23, 1978Date of Patent: November 6, 1979Assignee: Chemetals CorporationInventors: Jay Y. Welsh, Irving Sochol
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Patent number: 4138354Abstract: A method for the preparation of manganese bromide and cobalt bromide using a manganese/cobalt redox system. Elemental manganese is reacted with a solution of cobalt bromide, forming manganese bromide and elemental cobalt. Subsequent reaction of the cobalt with bromine, and alternate additions of manganese and bromine, can be used to produce a wide range of Mn:Co ratios in the solution.Type: GrantFiled: December 12, 1977Date of Patent: February 6, 1979Assignee: Chemetals CorporationInventors: Irving Sochol, Jay Y. Welsh
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Patent number: 4123499Abstract: A method for selectively extracting metal values from manganese bearing ores such as marine nodules. The ore is initially leached to solubilize manganese and other desirable metals as nitrates. The resulting solution is then treated with manganous hydroxide to selectively precipitate metals such as copper, nickel and cobalt. The enriched mixture of metal hydroxides is separated from the manganese nitrate solution, which is decomposed to recover high purity MnO.sub.2.Type: GrantFiled: May 20, 1977Date of Patent: October 31, 1978Assignee: Chemetals CorporationInventors: Jay Y. Welsh, Irving Sochol
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Patent number: 4010236Abstract: A method for reducing the higher oxides of manganese in manganese ore using solid fuel intermixed with an ore bed.Type: GrantFiled: July 21, 1975Date of Patent: March 1, 1977Assignee: Diamond Shamrock CorporationInventor: Jay Y. Welsh
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Patent number: 4000249Abstract: Process for the preparation of alkali metal cyanate by the reaction of urea and alkali metal carbonate. The addition of water to the reaction in an intermediate step activates partially blocked alkali metal carbonate and provides an alkali metal cyanate product of high purity.Type: GrantFiled: January 15, 1976Date of Patent: December 28, 1976Assignee: Diamond Shamrock CorporationInventors: Irving Sochol, Jay Y. Welsh
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Patent number: 3932945Abstract: Hot reduced manganese ore is cooled by blowing air through a layer of ore at velocities greater than 1 meter per second. The use of an inert cooling gas is unnecessary, and air reoxidation of the ore does not occur in the process.Type: GrantFiled: November 11, 1974Date of Patent: January 20, 1976Assignee: Diamond Shamrock CorporationInventor: Jay Y. Welsh