【発明の名称】金属硫化物の製造方法 - Merck Patent Gesellschaft Mitt Beschlenktel Haftung

Title:

【発明の名称】金属硫化物の製造方法

Document Type and Number:

Japanese Patent JP3487600

Kind Code:

B2

Abstract:

A process for the preparation of metal sulphides includes reacting corresponding metal oxides at temperatures between 500 and 1500° C. in a stream of gaseous CS2 characterized in that the CS2 is generated from elementary carbon and gaseous H2S by reaction at temperatures between 900 and 1500° C. upstream of the metal oxide. The process furnishes metal sulphides of high purity, thus being of specific usefulness in optical glass materials, for, e.g., fiber optics.

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Inventors:

Kinsman, Barry, Edward
Honey, richard

Application Number:

JP50125495A

Publication Date:

January 19, 2004

Filing Date:

May 25, 1994

Export Citation:

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Assignee:

Merck Patent Gesellschaft Mitt Beschlenktel Haftung

International Classes:

C01B17/20; C01F7/70; C01F17/00; C01G1/12; C01G15/00; C01G17/00; C01G19/00; C03C1/00; (IPC1-7): C01B17/20; C01F7/70; C01F17/00; C01G1/12

Domestic Patent References:

JP4357112A
JP2192420A
JP5440295A

Attorney, Agent or Firm:

Nobuyuki Kaneda (2 others)

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