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Beneficiation method for arsenic-containing lead sulfide ore

A mineral processing method and lead sulfide technology, applied in flotation, solid separation, etc., can solve problems such as the dissociation of galena and arsenopyrite, the quality of lead concentrate, etc.

Inactive Publication Date: 2017-03-22
青海省地质矿产测试应用中心
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Problems solved by technology

However, some galena is closely related to the intercalation of lead alum, arsenopyrite, and pyrite. This part of galena was either replaced by lead alum, or completely wrapped in arsenopyrite, or followed the early fragmentation of pyrite and arsenopyrite. Fissure filling, distributed in veinlets or strips, this part of galena and arsenopyrite is difficult to dissociate as a monomer, which has a certain impact on the quality of lead concentrate

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  • Beneficiation method for arsenic-containing lead sulfide ore
  • Beneficiation method for arsenic-containing lead sulfide ore
  • Beneficiation method for arsenic-containing lead sulfide ore

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Embodiment Construction

[0021] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0022] After the raw ore sample is obtained, the ore material composition analysis is carried out, including the following contents:

[0023] 1. Chemical analysis of raw ore

[0024] The chemical analysis results of raw ore are shown in Table 1

[0025] Table 1 Chemical analysis results of raw ore

[0026] element Pb Zn S As Sb Bi Cu TC content / % 2.52 0.12 1.25 0.38 0.0050 0.0025 0.065 0.11 element K 2 o

Na 2 o

CaO MgO Al 2 o 3

SiO 2

P CaF 2

content / % 3.82 0.21 0.93 0.21 12.46 65.50 0.021 0.11 element Hg Mo co WO 3

Ni sn Cd Ga content / % 0.0082 0.0023 0.0009 0.0016 0.0007 0.0024 element Te Se Th U In Tl Au*10 -6

Ag*10 -6

Content / 10 -6

0.18 43.0

[0027] The che...

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Abstract

Provided is a beneficiation method for arsenic-containing lead sulfide ore. The method comprises the steps that 1, raw ore is ground; 2, ore powder obtained through grinding is subjected to flotation, one time of roughing, two times of scavenging and two times of concentration, so that lead concentrate is obtained; and 3, tailings obtained through scavenging are subjected to flotation grading including one time of roughing, one time of scavenging and one time of concentration, so that arsenic concentrate is obtained. Through the process grading, the lead grade of the lead concentrate is 66.30%, the lead recovery rate is 85.04%, the arsenic grade of the arsenic concentrate is 8.48%, and the arsenic recovery rate is 79.84%.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and relates to a mineral processing method, in particular to a mineral processing method of arsenic-containing lead sulfide ore. Background technique [0002] The results of chemical analysis and process mineralogy of a raw ore show that the main recoverable elements in this ore are Pb and Ag. The ore contains 2.52% lead, 43g / t silver, and 0.38% arsenic as a harmful element. The main lead-containing mineral is galena, and the main arsenic-containing mineral is arsenopyrite. The main recovered minerals in the ore are galena and arsenopyrite. [0003] Most of the galena and arsenopyrite in the ore are relatively coarse in size, mainly distributed between +0.074-1mm, and are easy to dissociate. However, some galena is closely related to the intercalation of lead alum, arsenopyrite, and pyrite. This part of galena was either replaced by lead alum, or completely wrapped in arsenopyrite, or...

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Application Information

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IPC IPC(8): B03D1/018B03B1/00B03D101/06B03D101/02B03D103/02
CPCB03D1/018B03B1/00B03D2201/007B03D2201/02B03D2201/06B03D2203/02
Inventor 赵玉卿刘氘魏明孙晓华熊馨应永朋朱琳郭艳丽董红军
Owner 青海省地质矿产测试应用中心
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