1
Enoch I Wang, Lifun Lin, William L Bowden: Process for producing manganese dioxide. Duracell, Ronald S Cornell, James B McVeigh, Barry D Josephs, January 11, 1994: US05277890 (40 worldwide citation)

The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particles having such surface features can be manufa ...


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Enoch I Wang, William L Bowden, Paul Gionet: Process for producing manganese dioxide. Duracell, Ronald S Cornell, Edward M Corcoran, Barry D Josephs, February 21, 1995: US05391365 (33 worldwide citation)

The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particles having such surface features can be manufa ...


3
Enoch I Wang, Lifun Lin, William L Bowden: Process for producing manganese dioxide. Duracell, Ronald S Cornell, Edward M Corcoran, Barry D Josephs, September 20, 1994: US05348726 (32 worldwide citation)

The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particles having such surface features can be manufa ...


4
Isao Tanabe, Ryoichi Nagata, Toru Watanabe, Nobuaki Miyamoto: Process for producing manganese dioxide. Isao Tanabe, Mitsui Mining & Smelting, Armstrong Nikaido Marmelstein & Kubovcik, September 6, 1983: US04402931 (17 worldwide citation)

Manganese dioxide having high bulk density, high tap density and high activity for use in batteries can be obtained by decomposing an aqueous solution of ammonia complex of manganese at a temperature of 68.degree. C. or higher than roasting the resulting manganese carbonate in an atmosphere of oxyge ...


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Ebata Shuji C O Mitsubishi Gas, Hirayama Hiroyuki Mitsubishi G, Higuchi Hirofumi Mitsubishi Ga, Kida Koichi Mitsubishi Gas Che: Process for producing manganese dioxide catalyst for the hydration reaction of cyanohydrins.. Mitsubishi Gas Chemical Co, February 13, 1991: EP0412310-A1 (7 worldwide citation)

A process for producing a denaturated manganese dioxide for the hydration reaction of cyanohydrins comprising reacting a permanganate salt and a manganese (II) compound in an acidic aqueous solution at a temperature of 60 DEG C to 150 DEG C is disclosed. The manganese dioxide catalyst obtained by th ...


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Levan Nikolaevich Dzhaparidze, Temuri Alexandrovich Chakhunashvili, Venera Romanovna Mainsuradze, Raul Vladimirovich Chagunava, Zurab Yasonovich Kervalishvili, Nodar Georgievich Sikharulidze, Dali Georgievna Otiashvili, Yauzhe Markovich Dubov, Eduard Alimovich Bogdanov, Georgy Trofimovich Gogoladze, Alla Abelevna Teisheva, Galina Nikolaevna Ryzygraeva, Mikhail Alexeevich Melnikov Eikhenvald, Temuri Valeryanovich Rokva: Electrochemical process for producing manganese dioxide. Steinberg & Blake, January 17, 1978: US04069116 (3 worldwide citation)

Disclosure is made of an electrochemical process for producing manganese dioxide by electrolyzing a solution containing 100 to 200 g/l of manganese sulphate and 20 to 100 g/l of sulphuric acid. The temperature of the solution is 90.degree. to 98.degree. C, and the anode current density is 100 to 300 ...


9
Wang Enoch I, Lin Lifun, Bowden William L: Process for producing manganese dioxide.. Duracell, August 2, 1995: EP0664768-A1

The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particles having such surface features can be manufa ...


10
Levan Nikolaevich Dzhaparidze, Temuri Alexandrovich Chakhunashvili, Venera Romanovna Maisuradze, Raul Vladimirovich Chagunava, Zurab Yasonovich Kervalishvili, Nodar Georgievich Sukharulidze, Dali Georgievna Otiashvili, Alexei Pavlovich Epik: Electrochemical process for producing manganese dioxide. Steinberg & Blake, April 11, 1978: US04083757

An electrochemical process for producing manganese dioxide by electrolysis of a solution of manganese sulphate containing 100 to 150 g/l of manganese sulphate and 20 to 30 g/l of sulphuric acid and having a temperature of from 90.degree. to 95.degree. C at an anodic current density of from 80 to 100 ...