Title:
鉱物からの硫黄の回収方法
Document Type and Number:
Japanese Patent JP4129499
Kind Code:
B2
Abstract:
A sulfurous compound such as a sulfur-rich "float" (concentrate) obtained by flotation of the residue from the leaching of a zinc concentrate is heated at a temperature not lower than the melting point of sulfur but below its boiling point, preferably not higher than 200 DEG C, more preferably not higher than 140 DEG C, and the evolving gas containing sulfur vapor is cooled at a temperature less than the melting point of sulfur, preferably at ordinary temperature, to condense sulfur.
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Inventors:
Yoshiyuki Watanabe
Toyohisa Fujita
Kaoru Saruta
Toyohisa Fujita
Kaoru Saruta
Application Number:
JP2000239675A
Publication Date:
August 06, 2008
Filing Date:
August 08, 2000
Export Citation:
Assignee:
DOWA Metals & Mind Co., Ltd.
International Classes:
C01B17/027; C01B17/00; C01B17/02; C01G9/00; C22B3/08; C22B3/44; C22B7/00; C22B9/02; C22B19/00; C22B19/20
Domestic Patent References:
| JP8224438A | ||||
| JP50061392A | ||||
| JP56169105A | ||||
| JP6171909A | ||||
| JP5171310A | ||||
| JP7090404A | ||||
| JP52106317A | ||||
| JP53142316A | ||||
| JP9501986A | ||||
| JP2001214224A |
Attorney, Agent or Firm:
Kenji Wada
Komatsu Taka
Komatsu Taka