SU65095A1 - Method of refining lead from copper - Google Patents

Description

With the existing segregation method of freeing Ovintz from copper, on average, about 40% of gold is transferred to copper shells, which is found in the helium obtained from water jacket. The output of the sheep to the slurries 1 is on average 10-25%, and as a result, it is necessary at the refining plants to create special compartments for the processing of the slurries. Melting slips in slip furnaces is sufficient with a southern, technically and economically inefficient operation (as it causes great waste and loss of all valuable metals.

The proposed method of refining lead from copper with the use of sulphides consists in TOIM, that refining is carried out with the help of liquid sodium-ovidiomedate mTeuiHa.

The proposed procedure is free; 1i is made of copper in one Pray. However, due to the fact that all the metals in the nodule are already distributed. not between the TWO and metal phases, but between Metal and sodium matte, it is possible to almost completely save precious metals in the back, where they are from

can be easily, cheaply and without noticeable losses. Laboratory experiments in semiproducts showed that exemption from copper, according to the proposal, is clear, and it gives a recruit with a very small content of copper (hundredths and even thousandths of a percent).

Conventional MEASURES; to the s1vintz in

its werkb — ex: Cu, Sb, As, Sn, Bi, Ag, Au, Cd, Zn, Fe, Ni, Co.

Kzk was detected by experiments, the optimum temperature range, in which the release of the sodium-lead-copper scale shteynol proceeds within 500-700 ° C.

Fishing at the Yellingovka):

15

AsoSs BioSs

4.0

4.2

AgoS

5.6

Sns

8.0

Fes

9.6

Cu.S 10.0

FeS 12.2

CdS 13.0

PbS

8.0

Comparison of equilibrium elasticity: the dissociation of metal sulfide dyes, which are Drimes dv to ovici, with the elasticity of dissociation of lead and copper sulphides, entering the cocTaiB of liquid Steyo (NasS, PbS, CugS), shows that As, Bi, s, , Ag, and Au remain вер in sharper, and Cd, Cu, Zn, partly Sn, and by their violence. The metals of the iron group are rolled into pieces) at -os. Release from copper. Such a dispersion is advantageous, the decomposition of sodium and matte chemical compounds of copper with antimony and mice. 1KOL1, solid solutions in copper, chemical compounds of gold and silver, zinc, etc., allows the As and Sb to be more completely removed by alkaline or Openly, it is Niro Zeniem Saenza, and gold and silver should be divided into subsequent parking. Cadmium, lead, and zinc can be easily captured by dust collection plants during the processing of stein in the converters of smelters: as cold additives. Thus, ved copper-free liquid preeeeo-lead-ice shteyn can not only be obtained in one operation completely by a stainless steel butt, but it is most expedient to distribute the impurities present in the original helium for rational extraction. existing ways.

PRED MET INITIATED AND

The method of affixing CBi-gnts from copper with the use of sul. Foda, about tl i: due to the fact that refining is carried out with the help of a liquid sodium-ovintsov-medpy matte.