Ronald R Dotson

US Patent:

42785278, Jul 14, 1981

Filed:

Oct 1, 1979

Appl. No.:

6/080758

Inventors:

Ronald L. Dotson - Cleveland TN

Assignee:

Olin Corporation - New Haven CT

International Classification:

C25B 900
C25B 1102

US Classification:

204272

Abstract:

Electrolytic apparatus is described for purifying an aqueous solution of an alkali metal hydroxide containing an impurity of a soluble heavy metal complex comprised of a heavy metal cation and a plurality of anions. For example, an aqueous solution of sodium hydroxide containing a soluble heavy metal complex, such as mercuric polysulfide, [HgS]. sup. + S. sup. -, is charged to the electrolytic chamber of an electrolytic cell. An electric current is employed to reduce heavy metal cations to a separate phase in elemental form, and simultaneously to oxidize anions to a separate phase in elemental form, and to form a slurry of the separate phases in elemental forms in the aqueous solution. The slurry is removed from the electrolytic chamber and the phases of elemental forms are separated from the purified aqueous solution. The purified alkali metal hydroxide solution is sold commercially or otherwise utilized.

US Patent:

51529157, Oct 6, 1992

Filed:

Sep 3, 1991

Appl. No.:

7/753560

Inventors:

Richard W. Ralston - Cleveland TN
Budd L. Duncan - Athens TN
Ronald L. Dotson - Cleveland TN

Assignee:

Olin Corporation - Cheshire CT

International Classification:

C01B 1104

US Classification:

25218636

Abstract:

A process for producing dichlorine monoxide which includes: feeding an aqueous solution of hypochlorous acid containing at least 20% by weight of HOCl to a reaction vessel; maintaining the temperature of the aqueous solution of hypochlorous acid in the range of from about -10. degree. to about +40. degree. C. ; passing an inert gas through the aqueous solution of hypochlorous acid to produce a gaseous mixture comprising dichlorine monoxide, chlorine and inert gas; an contacting the gaseous mixture with dry ice to provide a solid phase of dry ice and dichlorine monoxide.

US Patent:

44526857, Jun 5, 1984

Filed:

May 2, 1983

Appl. No.:

6/490612

Inventors:

Kenneth E. Woodard - Cleveland TN
Ronald L. Dotson - Cleveland TN

Assignee:

OLIN Corporation - New Haven CT

International Classification:

C25B 134
C25B 1100

US Classification:

204252

Abstract:

An electrode for use in an electrolytic cell, and a method for producing same, wherein said electrode comprises an internal copper conductor and an external element of a second metal, at least a portion of each having contact surfaces being held in intimate contact with the other, said conductor and said element each having a conductive coating applied to the contact surface, said conductive coating comprising between about 20 and about 30 percent indium and between about 80 and about 70 percent gallium, whereby the contact resistance between said conductor and said element is reduced.

US Patent:

41893620, Feb 19, 1980

Filed:

Jan 15, 1979

Appl. No.:

6/003151

Inventors:

Ronald L. Dotson - Cleveland TN

Assignee:

Olin Corporation - New Haven CT

International Classification:

C02C 512
C25B 116

US Classification:

204149

Abstract:

An electrolytic process is described for purifying an aqueous solution of an alkali metal hydroxide containing an impurity of a soluble heavy metal complex comprised of a heavy metal cation and a plurality of anions. For example, an aqueous solution of sodium hydroxide containing a soluble heavy metal complex, such as mercuric polysulfide, [HgS]. sup. + S. sup. -, is charged to the electrolytic chamber of an electrolytic cell. An electric current is employed to reduce heavy metal cations to a separate phase in elemental form, and simultaneously to oxidize anions to a separate phase in elemental form, and to form a slurry of the separate phases in elemental forms in the aqueous solution. The slurry is removed from the electrolytic chamber and the phases of elemental forms are separated from the purified aqueous solution. The purified alkali metal hydroxide solution is sold commercially or otherwise utilized.

US Patent:

44655681, Aug 14, 1984

Filed:

Nov 16, 1981

Appl. No.:

6/322000

Inventors:

Ronald L. Dotson - Cleveland TN
Ronald C. Miles - Cleveland TN
Larry D. Carpenter - Cleveland TN

Assignee:

Olin Corporation - New Haven CT

International Classification:

C25G 134

US Classification:

204 98

Abstract:

A process for the electrolytic production of a chloride-free mixture consisting essentially of sodium and potassium nitrates is disclosed. In this process, an anolyte brine comprised of a mixture of sodium and potassium chlorides dissolved therein is electrolyzed in a membrane type electrolysis type cell to produce a mixed alkali metal hydroxide catholyte solution. The catholyte is reacted with nitric acid to form a mixed potassium-sodium nitrate solution. By properly adjusting the ratio of potassium chloride to sodium chloride concentration in the anolyte brine, a final nitrate product containing about from about 40% to about 80% NaNO. sub. 3 and from about 60% to about 20% KNO. sub. 3 by weight can be produced. The resulting product, after drying is suitable for use in many solar panel heat transfer applications.

US Patent:

RE320781, Feb 4, 1986

Filed:

Apr 3, 1985

Appl. No.:

6/719795

Inventors:

Kenneth E. Woodard - Cleveland TN
Ronald L. Dotson - Cheshire CT

Assignee:

Olin Corporation - Cheshire CT

International Classification:

C25B 134
C25B 1100

US Classification:

204252

Abstract:

An electrode for use in an electrolytic cell, and a method for producing same, wherein said electrode comprises an internal copper conductor and an external element of a second metal, at least a portion of each having contact surfaces being held in intimate contact with the other, said conductor and said element each having a conductive coating applied to the contact surface, said conductive coating comprising between about 20 and about 30 percent indium and between about 80 and about 70 percent gallium, whereby the contact resistance between said conductor and said element is reduced.

US Patent:

50629662, Nov 5, 1991

Filed:

Nov 2, 1990

Appl. No.:

7/608416

Inventors:

Ronald L. Dotson - Cleveland TN
Sanders H. Moore - Cleveland TN

Assignee:

Olin Corporation - Cheshire CT

International Classification:

C02F 158
C02F 176

US Classification:

210753

Abstract:

A process for decomposing a solution of a hydroxylammonium compound includes raising the pH of the solution to about 8 or higher and reacting the alkaline solution with a source of hypohalite ions. The process decomposes solutions of hydroxylammonium salts in a manner which produces benign liquid and gas effluents which can be readily disposed of or discharged.

US Patent:

45139040, Apr 30, 1985

Filed:

Jul 29, 1983

Appl. No.:

6/518595

Inventors:

Kenneth E. Woodard - Cleveland TN
Ronald L. Dotson - Cleveland TN

Assignee:

Olin Corporation - Cheshire CT

International Classification:

H01R 1102

US Classification:

228116

Abstract:

An electrode for use in an electrolytic cell, and a method for producing same, wherein said electrode comprises an internal copper conductor and an external element of a second metal, at least a portion of each having contact surfaces being held in intimate contact with the other, said conductor and said element each having a conductive coating applied to the contact surface, said conductive coating comprising between about 20 and about 30 percent indium and between about 80 and about 70 percent gallium, whereby the contact resistance between said conductor and said element is reduced.