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Monte Shirts Phones & Addresses

  • Washington, UT
  • South Jordan, UT
  • Saint George, UT

Publications

Us Patents

Recovery Of Titanium From Perovskite Using Sulfuric Acid Leaching

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US Patent:
45527300, Nov 12, 1985
Filed:
Aug 27, 1984
Appl. No.:
6/644303
Inventors:
Monte B. Shirts - South Jordan UT
Dale A. Martin - Salt Lake City UT
Allan E. Petersen - Salt Lake City UT
Assignee:
The United States of America as represented by the Secretary of the
Interior - Washington DC
International Classification:
C01G 2300
US Classification:
423 82
Abstract:
A method of recovering titanium from perovskite by leaching with a strong sulfuric acid solution is disclosed. The leaching produces a sulfate solution containing titanium and a calcium sulfate residue when the time and temperature of leaching are controlled as a function of the grind size of the perovskite and concentration of the sulfuric acid. The titanium-containing solution and the calcium sulfate residue are then separated. The titanium in the leach solution is precipitated by heating, as a mixture of titanium sulfates, which are then redissolved in water or dilute acid solution. Titanium dioxide may then be prepared by hydrolysis of the titanium in the resulting aqueous solution.

Recovery Of Titanium From Perovskite By Acid Sulfation

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US Patent:
45620490, Dec 31, 1985
Filed:
Sep 20, 1984
Appl. No.:
6/652391
Inventors:
Monte B. Shirts - South Jordan UT
Dale A. Martin - Salt Lake City UT
Allan E. Petersen - Salt Lake City UT
Assignee:
The United States of America as represented by Secretary of Interior - Washington DC
International Classification:
C01G 2300
C01G 23053
US Classification:
423 82
Abstract:
Titanium is extracted from perovskite ores or concentrates by reaction of e perovskite ores or concentrates with sulfuric acid to form a sulfated residue, dissolving the sulfated residue in water or dilute acid, removing the precipitated calcium sulfate, and recovering the titanium in an aqueous solution.

Recovery Of Arsenic From Flue Dust

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US Patent:
44016328, Aug 30, 1983
Filed:
Feb 11, 1982
Appl. No.:
6/348118
Inventors:
Brent W. Madsen - Bountiful UT
Henry Dolezal - Salt Lake City UT
Philip A. Bloom - Salt Lake City UT
Monte B. Shirts - South Jordan UT
Assignee:
The United States of America as represented by the Secretary of the
Interior - Washington DC
International Classification:
C01G 2800
US Classification:
423 87
Abstract:
Arsenic is recovered from flue dusts by forming an aqueous slurry of the dust, treating the slurry with SO. sub. 2 gas to solubilize arsenic, and precipitating the arsenic as As. sub. 2 O. sub. 3 by means of sulfuric acid.

Production Of Titanium Nitride, Carbide, And Carbonitride Powders

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US Patent:
48123013, Mar 14, 1989
Filed:
Apr 24, 1986
Appl. No.:
6/855276
Inventors:
Charles F. Davidson - Layton UT
Monte B. Shirts - South Jordan UT
Donna D. Harbuck - Salt Lake City UT
Assignee:
The United States of America as represented by the Secretary of the
Interior - Washington DC
International Classification:
C01B 3134
US Classification:
423440
Abstract:
A process for producing substantially oxygen-free titanium carbide, nitride or carbonitride in powder form comprises treating a gas phase reaction mixture of titanium halide, desirably TiCl. sub. 4, a reductant vapor, desirably sodium or magnesium, and a reactive gas capable of furnishing carbon, nitrogen or mixtures thereof at the reaction temperature, desirably nitrogen, methane or ammonia, to a temperature in the range from 500. degree. to 1250. degree. C. , preferably 800. degree. to 1100. degree. C. , whereby the titanium halide is substantially simultaneously reduced and carbided, nitrided or carbonitrided. The process may also be practiced using volatile metal halides of metals such as zironium, hafnium, vanadium, niobium, tantalum and silicon for forming substantially oxygen-free carbides, nitrides or carbonitrides thereof in powder form.

Decomposition Of Chalcopyrite

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US Patent:
39855554, Oct 12, 1976
Filed:
Jan 23, 1975
Appl. No.:
5/543208
Inventors:
Monte B. Shirts - Centerville UT
Walter L. Staker - Salt Lake City UT
Assignee:
The United States of America as represented by the Secretary of the
Interior - Washington DC
International Classification:
C22B 1508
C22B 1512
US Classification:
75117
Abstract:
Chalcopyrite is decomposed by treatment with aqueous acid solution and a metallic reductant to form either metallic copper or copper sulfide, ferrous iron and hydrogen sulfide.
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