Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing
Patent
1997-11-20
1999-06-29
Marcheschi, Michael
Compositions: coating or plastic
Coating or plastic compositions
Inorganic settable ingredient containing
106769, 106789, 106782, C04B 714
Patent
active
059163623
ABSTRACT:
A method for producing cement is disclosed. The method has the advantages that a setting time can be shortened as compared with conventional cement, and a manganese slag can be treated at low cost without giving load to environment, by using the manganese slag which has conventionally been subjected to waste disposal, as a cement raw material. The method comprises using, as a part of cement materials, a manganese slag which is an insoluble component formed in extraction step and refining step in a production of electrolytic manganese dioxide comprising extracting a manganese component from manganese-containing ore, refining a manganese-containing aqueous solution obtained, and conducting electrolytic treatment, to produce manganese dioxide.
REFERENCES:
patent: 1462991 (1923-07-01), Taylor
patent: 5421880 (1995-06-01), Young
CA 99:75847, Chou Denki Kogyo Co., Ltd., `Concrete blocks`, corresponds to JP 58014395 B4, Mar. 1983.
CA 83:136405, Umemura et al., `cement product from manganese slag`, corresponds to JP 50022020, Mar. 1975.
Takahara Toshiya
Tokitaka Shinji
Marcheschi Michael
Tosoh Corporation
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