A kind of selection method of lead-zinc sulfide ore

A lead and zinc sulfide and lead roughing technology, applied in flotation, solid separation and other directions, can solve the problems of low recovery rate of lead and zinc, and achieve the effect of improving grade and recovery rate, reducing dosage and good flotation effect.

Active Publication Date: 2020-04-24
广西华洋矿源材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the invention of the present invention is to provide a method for selecting lead-zinc sulfide ore in view of the above problems, which is used to solve the problem of low recovery rate of lead and zinc in the process of selecting lead-zinc sulfide ore by traditional flotation

Method used

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  • A kind of selection method of lead-zinc sulfide ore
  • A kind of selection method of lead-zinc sulfide ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for selecting lead-zinc sulfide ore, comprising the following steps:

[0029] (1) Raw ore grinding: Finely grind the selected raw ore to obtain a slurry with an abrasive particle size of -80 μm, accounting for 70%.

[0030] (2) Lead flotation: the pulp obtained in step (1) is subjected to one lead roughing, three lead concentration and two lead sweeping to obtain lead concentrate and lead sweeping tailings. During lead flotation, the mass percentage concentration of the pulp is adjusted to 30%, the pH is adjusted to 9, and the lead ore produced in the lead flotation process is returned to the previous step process in sequence.

[0031] The following agents are added during the lead roughing process: lime 1800g / t, calcium hypochlorite 600g / t, zinc sulfate 800g / t, sodium sulfite 400g / t, sodium sulfide 300g / t, dimethyl dicarbonate 20g / t, Ethiazide 60g / t, butyl xanthate 40g / t, aniline black medicine 20g / t, diphenylaminodithiophosphoric acid 20g / t and sodium carbon...

Embodiment 2

[0039] A method for selecting lead-zinc sulfide ore, comprising the following steps:

[0040] (1) Raw ore grinding: Finely grind the selected raw ore to obtain an ore slurry with an abrasive particle size of -80 μm, accounting for 75%.

[0041] (2) Lead flotation: the pulp obtained in step (1) is subjected to one lead roughing, three lead concentration and two lead sweeping to obtain lead concentrate and lead sweeping tailings. During lead flotation, the mass percentage concentration of the pulp is adjusted to 40%, the pH is adjusted to 12, and the lead ore produced in the lead flotation process is returned to the previous process in sequence.

[0042]The following agents are added during the lead roughing process: lime 2000g / t, calcium hypochlorite 1000g / t, zinc sulfate 1000g / t, sodium sulfite 600g / t, sodium sulfide 600g / t, dimethyl dicarbonate 40g / t, Ethiazide 80g / t, butyl xanthate 60g / t, aniline black medicine 40g / t, diphenylaminodithiophosphoric acid 40g / t and sodium carb...

Embodiment 3

[0050] A method for selecting lead-zinc sulfide ore, comprising the following steps:

[0051] (1) Raw ore grinding: Finely grind the selected raw ore to obtain an ore slurry with an abrasive grain size of -80 μm, accounting for 72%.

[0052] (2) Lead flotation: the pulp obtained in step (1) is subjected to one lead roughing, three lead concentration and two lead sweeping to obtain lead concentrate and lead sweeping tailings. During lead flotation, the mass percentage concentration of the pulp is adjusted to 35%, the pH is adjusted to 10, and the lead ore produced in the lead flotation process is returned to the previous step process in sequence.

[0053] The following agents are added during the lead roughing process: lime 1900g / t, calcium hypochlorite 800g / t, zinc sulfate 900g / t, sodium sulfite 500g / t, sodium sulfide 450g / t, dimethyl dicarbonate 30g / t, Ethiazide 70g / t, butyl xanthate 50g / t, aniline black medicine 30g / t, diphenylaminodithiophosphoric acid 30g / t and sodium car...

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Abstract

The invention discloses a selection method of lead and zinc sulfide ore, and belongs to the technical field of beneficiation. The selection method comprises the steps of milling of raw ore, flotationof lead and flotation of zinc, wherein during rough flotation of lead, lime, calcium hypochlorite, zinc sulfate, sodium sulfite, sodium sulfide, dimethyl dicarbonate, ethyl thio carbamate, sodium n-butylxanthate, dianilinodithiophosphoric acid, diphenyl amino phosphorodithioic acid and sodium carbonate are added; during fine flotation of lead, lime, zinc sulfate, sodium sulfite and sodium sulfideare added; during scavenging of lead, lime, calcium hypochlorite, zinc sulfate, sodium sulfite, sodium sulfide, dimethyl dicarbonate, ethyl thio carbamate, dianilinodithiophosphoric acid, diphenyl amino phosphorodithioic acid and sodium carbonate are added; during rough flotation of zinc, lime, copper sulfate, ammonium sulfite, sodium n-butylxanthate and terpenic oil are added; during fine flotation of zinc, lime is added; and during scavenging of zinc, lime, copper sulfate, ammonium sulfite, sodium n-butylxanthate and terpenic oil are added. By adoption of the selection method of lead and zinc sulfide ore, the problem that when a traditional flotation method is used for selecting lead and zinc sulfide ore, the recovery rate of lead and zinc is low is solved.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for selecting lead-zinc sulfide ore. Background technique [0002] Lead and zinc are one of the metals that humans extracted from lead-zinc ore earlier. Lead and zinc are widely used in electrical, mechanical, military, metallurgy, chemical, light industry and pharmaceutical industries. According to the oxidation degree of the ore, lead-zinc ore can be divided into lead-zinc sulfide ore (oxidation rate <10%), lead-zinc oxide ore (oxidation rate>75%) and mixed lead-zinc ore (oxidation rate is 10%-75%) ) three categories. Due to the variety of minerals contained in lead-zinc sulfide ore, the associated components of ore are very unstable, so it is not easy to sort, and the commonly used selection method is flotation; There is the shortcoming that lead and zinc recovery rate are low; Therefore, it is necessary to provide a kind of selection method of lea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B03B9/00B03D101/06B03D101/02B03D101/04B03D103/02
CPCB03B9/00B03D1/018B03D2201/02B03D2201/04B03D2201/06B03D2203/02
Inventor 李文康张宸宇欧西江
Owner 广西华洋矿源材料有限公司
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