Method for producing antimonous oxide by wet method to improve whiteness
A technology of antimony trioxide and whiteness, used in chemical instruments and methods, inorganic chemistry, antimony compounds, etc.
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[0032] The following examples are intended to further illustrate the present invention, rather than limit the present invention.
[0033] Table 1 Raw ore composition
[0034] name
Sb
Au
Pb
As
Cu
H 2 0
Fuxing, You County, Hunan
54.50
0.67g / t
0.37%
0.49%
0.015%
12.1%
[0035] The flow process of industrialized production of the present invention is as follows:
[0036] Add the chlorinated leaching solution of the above-80 mesh antimony sulfide concentrate (chlorination leaching adopts the chlorination leaching method of the invention patent CN 1041787A) to the antimony sulfide concentrate for primary reduction; pass excessive chlorine gas into the filtrate for oxidation, and the oxidation reaction temperature is 50- 90°C; react until elemental sulfur is precipitated and the solution is bright reddish brown, filter, precipitate for no less than 2 hours, filter, and cool to 10-40°C. The cooled solution ...
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