GB1238902A - - Google Patents

Info

Publication number
GB1238902A
GB1238902A GB4068668A GB1238902DA GB1238902A GB 1238902 A GB1238902 A GB 1238902A GB 4068668 A GB4068668 A GB 4068668A GB 1238902D A GB1238902D A GB 1238902DA GB 1238902 A GB1238902 A GB 1238902A
Authority
GB
United Kingdom
Prior art keywords
manganese
gamma
carbon
manganese dioxide
maintained
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4068668A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1238902A publication Critical patent/GB1238902A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G45/00—Compounds of manganese
    • C01G45/02—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

1,238,902. Gamma manganese dioxide. DOW CHEMICAL CO. 26 Aug., 1968, No. 40686/68. Heading C1A. A gamma manganese dioxide is prepared by reacting an aqueous solution containing 5-30% by wt. of manganese sulphate or manganese chloride with chlorine, the solution being maintained at pH 0À5-3À0, terminating the reaction before formation of permanganate ion in the solution, separating, washing and drying the precipitated gamma MnO 2 . Seed crystals of carbon, gamma manganese dioxide containing occluded carbon, or gamma manganese dioxide may be used, in the proportion 1À5-10% by wt., and the reaction preferably carried out at 25-80‹ C. The carbon seed crystals preferably are particles having a " chain-like " appearance under high magnification. The pH may be maintained by the addition of a neutralizing agent which does not form an insoluble, inseparable precipitate with the manganese salt, e.g. Mg(OH) 2 when manganese sulphate is used; Ca(OH) 2 when manganese chloride is used.
GB4068668A 1968-08-26 1968-08-26 Expired GB1238902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4068668 1968-08-26

Publications (1)

Publication Number Publication Date
GB1238902A true GB1238902A (en) 1971-07-14

Family

ID=10416125

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4068668A Expired GB1238902A (en) 1968-08-26 1968-08-26

Country Status (1)

Country Link
GB (1) GB1238902A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551254A (en) * 1983-06-22 1985-11-05 Mitsui Mining & Smelting Co., Ltd. Macroporous manganese dioxide water purifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551254A (en) * 1983-06-22 1985-11-05 Mitsui Mining & Smelting Co., Ltd. Macroporous manganese dioxide water purifier

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees