A # oxidant in the leaching of antimony sulfide and antimony-containing anode slimes process, it is necessary to consider the oxidation-reduction equilibrium:

(1)

(2)

(3)

(4)

Also consider the hydrolysis equilibrium as shown in formula (5) in the leaching system.

(5)

Based on the oxidation-reduction equilibrium, the leachate return fraction can be determined:

(6)

Wherein δ-A # key component chlorinating agent excess coefficient;

The equivalent content of pentavalent and trivalent europium in β ( 5 ) and β ( 3 ) -chlorinating agents and leachate.

For strontium sulfide ore:

β ( 5 ) =3.3047αs (7)

For anode mud:

β ( 5 ) = (8)

The content of reactable sulfur in the αs-antimony ore;

M i, α i and X i - i species anode slime metals molecular weight, and the content of the oxidation rate;

The valence of low-priced ions of Z i -i metal after oxidation.

(9)

Wherein αj and η j - metal content and leaching rate of high-valent ions; such as Fe, Cu, Sn, As, etc. may be regarded as metals having high valence chloride;

K j - conversion factor, determined by the atomic weight of 锑 and the corresponding metal and the number of electrons absorbed by a molecular chlorinating agent.

(10)

According to the principle that the leaching system does not produce hydrolysis, the total chloride concentration ([Cl - ] TL ) and the limiting acidity ([H + ] L ) calculated by formula (10) can be calculated to maintain the non-hydrolysis of SbCl 3 in the leaching system. Formula for minimum acidity:

(11)

(12)

In the formula, [Sb 3 + ] T is the equilibrium concentration of ruthenium in the leachate, and can be calculated by the formula (13).

(13)

Where R is the liquid to solid ratio.

Finally, the acidity [H + ] s of the leaching process was calculated based on the content of the acid-consuming compound in the bismuth raw material. A # acidity chlorinating agent should be the limit acidity, acidity consumption and insurance acidity sum [H +] p is:

(14)

The key components of the A # chlorinating agent are all determined.

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