Beneficiation reagent for lead flotation of lead-zinc flotation and preparation method of beneficiation reagent

A lead-zinc and flotation technology, used in flotation, solid separation, etc., can solve the problem of large amount of lime, achieve the effect of small amount of lime, reduce zinc content, and improve quality

Pending Publication Date: 2022-05-10
广东发恩德矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Lime mainly plays the role of pH adjustment and inhibition of pyrite in lead flotation. Since the sulfur grade in the raw ore is 8-12%, part of the lime has the effect of inhibiting pyrite, so the amount of lime is relatively large.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The lead-zinc flotation method of the ore comprises the following steps:

[0023] a. The crushed lead-zinc-silver ore is ground, and the zinc sulfate is put into the grinding process; the amount of zinc sulfate added is 1000 grams per ton of ore; the grinding process is divided into two stages for grinding, and the first stage adopts a grid ball mill Grind the ore to 200 mesh and the ore powder accounts for 50%, and add zinc sulfate in the first stage of grinding; the second stage uses overflow ball milling equipment to continue grinding the powder after the first stage to 200 mesh Grinding products with mineral powder accounting for more than 76%;

[0024] b, put the ground ore in step a into the mixing drum, and add slaked lime and sodium sulfite in the mixing drum to fully stir; wherein, the addition of sodium sulfite is 150 grams per ton of ore; the addition of slaked lime is 1200 grams per ton tons of ore; adjust the pH of the pulp to 9;

[0025] c, in the materi...

Embodiment 2

[0029] The lead-zinc flotation method of the ore comprises the following steps:

[0030] a. The crushed lead-zinc-silver ore is ground, and the zinc sulfate is put into the grinding process; the amount of zinc sulfate added is 800 grams per ton of ore; the grinding process is divided into two stages for grinding, and the first stage adopts a grid ball mill Grind the ore to 200 mesh and the ore powder accounts for 50%, and add zinc sulfate in the first stage of grinding; the second stage uses overflow ball milling equipment to continue grinding the powder after the first stage to 200 mesh Grinding products with mineral powder accounting for more than 76%;

[0031] b. Put the ground ore in the step a into the mixing drum, and add slaked lime and sodium sulfite in the mixing drum to fully stir; wherein, the addition of sodium sulfite is 100 grams per ton of ore; the addition of slaked lime is 1000 grams per ton tons of ore; adjust the pH of the pulp to 9;

[0032] c, in the mat...

Embodiment 3

[0036] The lead-zinc flotation method of the ore comprises the following steps:

[0037] a. The crushed lead, zinc and silver raw ore is ground and processed, and the zinc sulfate is put into the grinding process; the addition amount of zinc sulfate is 900 grams per ton of ore; the grinding process is divided into two stages for grinding, and the first stage adopts a grid-type ball mill Grind the ore to 200 mesh and the ore powder accounts for 50%, and add zinc sulfate in the first stage of grinding; the second stage uses overflow ball milling equipment to continue grinding the powder after the first stage to 200 mesh Grinding products with mineral powder accounting for more than 76%;

[0038] b, put the ore ground in step a into the mixing drum, and add slaked lime and sodium sulfite in the mixing drum to fully stir; wherein, the addition of sodium sulfite is 125 grams per ton of ore; the addition of slaked lime is 1100 grams per ton tons of ore; adjust the pH of the pulp to...

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PUM

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Abstract

The invention relates to the technical field of lead-zinc flotation, in particular to an ore lead-zinc flotation method, which comprises the following steps of: putting ore aggregates obtained in the previous step into a stirring barrel, and adding slaked lime and sodium sulfite into the stirring barrel for fully stirring; adding N, N '-diethyldithiocarbamate and modified dithiophosphate into the stirred material, and continuously stirring; the lead concentrate with the lead concentrate grade being 45-48% is selected from the evenly stirred materials in a floating mode; by means of the lead-zinc flotation method, the lead and silver recovery rate can be increased, zinc contained in lead concentrate is reduced, and the use amount of ethyl, sulfur and nitrogen can be reduced.

Description

technical field [0001] The invention relates to the technical field of lead-zinc flotation, in particular to a beneficiation agent for lead-zinc flotation for lead and a preparation method thereof. Background technique [0002] The traditional method is to add slaked lime as pH adjuster, add odorous sodium sulfide, then add zinc sulfate and sodium sulfite as zinc inhibitor for lead-zinc flotation; finally add ethion and butylammonium black medicine as collector. The production process of the compounded medicament has the disadvantages of large consumption of the medicament and low quality of lead concentrate. [0003] Lime mainly plays the role of PH adjustment and inhibition of pyrite in lead flotation. Since the sulfur grade in the original ore is 8-12%, some lime plays the role of inhibiting pyrite, so the amount of lime is large. SUMMARY OF THE INVENTION [0004] The object of the present invention is to provide a kind of beneficiation agent for lead-zinc flotation f...

Claims

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Application Information

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IPC IPC(8): B03D1/002B03D103/04B03D101/06
CPCB03D1/002B03D2203/04B03D2201/06
Inventor 刘阳宋强温福向仁勇
Owner 广东发恩德矿业有限公司
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