CN105312161A - Preparation method of lead-zinc-sulphur mixing, floating and separating inhibitor - Google Patents

Preparation method of lead-zinc-sulphur mixing, floating and separating inhibitor Download PDF

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Publication number
CN105312161A
CN105312161A CN201510860616.0A CN201510860616A CN105312161A CN 105312161 A CN105312161 A CN 105312161A CN 201510860616 A CN201510860616 A CN 201510860616A CN 105312161 A CN105312161 A CN 105312161A
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zinc
lead
inhibitor
solution
preparation
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CN201510860616.0A
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CN105312161B (en
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陈建华
李玉琼
陈晔
赵翠华
甘恒
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Guangxi University
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Guangxi University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/018—Mixtures of inorganic and organic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/06—Depressants

Abstract

The invention discloses a preparation method of a lead-zinc mixing, floating and separating inhibitor. The method comprises the following steps: (1) taking 1 part of Congo red and 0.3 part of sodium hydroxide to prepare a 30wt% solution, and stirring the solution for 15 minutes at 60 DEG C; (2) taking 3 parts of zinc sulfate, 1 part of sodium hydrosulfite and 0.2 part of pyrogallic acid to prepare a 30wt% aqueous solution, and stirring the aqueous solution for 15 minutes at 20-25 DEG C; and (3) mixing products obtained by the steps (1) and (2), stirring for 10 minutes at 20-25 DEG C to obtain a light red solution, concentrating and crystallizing the red solution to obtain light red powder product which is the lead-zinc mixing, floating and separating inhibitor.

Description

A kind of plumbous zinc sulphur bulk flotation is separated the preparation method of inhibitor
One, technical field
The present invention relates to a kind of preparation method of beneficiation reagent, specifically the preparation method of a kind of zincblende and pyrite inhibitor.
Two, background technology
The floatation process of lead-zinc ore can be divided into two kinds: one to be controling differential flotation process for copper, and two is bulk flotation technique.High for lead content, the unquenchable ore of zinc sulfur mineral, general employing first floats lead, then the technique of floating zinc; The general first inhibiting of plumbous zinc controling differential flotation process for copper, after add collecting agent, be conducive to inhibitor on the one hand in zincblende and pyrite surface absorption, diffeential floatation uses the collecting agents such as selective strong black powder on the other hand, to zincblende and pyrite surface effect more weak, therefore flotation separation of lead zinc ore first process, generally adopts the conventional inhibitor such as zinc sulfate, lime or sodium sulfite just effectively can realize zincblende and pyritous suppression.For the ore that Pb, Zn content is lower, diffeential floatation high cost, general employing bulk flotation technique, namely adds copper sulphate for activation zincblende and pyrite, adds the sulfide mineral that the strong butyl xanthate flotation of collecting ability is whole; The shortcoming of bulk flotation technique is that flotation separation of lead zinc ore difficulty is large, and general medicament is difficult to obtain ideal indicator as zinc sulfate, lime and sodium sulfite etc., sometimes can not be separated even completely.
Three, summary of the invention
The object of the present invention is to provide the preparation method of a kind of pyrite and zincblende inhibitor, bulk flotation can be realized and first add pyrite under collecting agent system and zincblende suppresses.The present invention is directed to plumbous zinc sulphur bulk flotation system, have developed the preparation method that a kind of zincblende closes and pyrite effectively suppresses.
The present invention is achieved through the following technical solutions above-mentioned purpose: a kind of plumbous zinc bulk flotation is separated the preparation method of inhibitor, comprises the steps:
(1) get Congo red 1 part, 0.3 part, NaOH, is mixed with 30wt% solution, stirs 15 minutes under 60 DEG C of conditions;
(2) get 3 parts, zinc sulfate, sodium dithionite 1 part, pyrogallic acid 0.2 part, is mixed with the aqueous solution of 30wt%, stirs 15 minutes under 20-25 DEG C of condition;
(3) product mixing step (1) and (2) obtained, under 20-25 DEG C of condition, stirs 10 minutes, obtain light red solution, after condensing crystallizing, obtain pale red powder product, be described plumbous zinc bulk flotation and be separated inhibitor.
Unless otherwise indicated, percentage of the present invention is mass percent, and each constituent content percentage sum is 100%.
The invention has the advantages that:
For pyrite and the zincblende of bulk flotation system, because mineral surfaces is by activated by copper ions, and be adsorbed with the xanthate molecule of Long carbon chain, general inhibitor is difficult to the suppression realizing pyrite and zincblende.The present invention adopts to be had the Congo red of adsorption activity and has the sodium dithionite of reproducibility to realize the desorb of mineral surfaces collecting agent film, strengthens the suppression of zincblende with zinc complex simultaneously.The present invention has chemisorbed, complexing and electrochemical reduction simultaneously, has associating inhibition to the pyrite of bulk flotation and zincblende.
Four, detailed description of the invention
By the following examples technical scheme of the present invention is described further.
Embodiment 1
Plumbous zinc sulphur bulk flotation of the present invention is separated the preparation method of inhibitor, comprises the steps:
(1) get Congo red 1 part, 0.3 part, NaOH, is mixed with 30% solution, stirs 15 minutes under 60 DEG C of conditions;
(2) get 3 parts, zinc sulfate, sodium dithionite 1 part, pyrogallic acid 0.2 part, is mixed with the aqueous solution of 30%, stirs 15 minutes under 20-25 DEG C of condition.
(3) above-mentioned (1) and (2) is mixed, under 20-25 degree condition, stir 10 minutes, obtain light red solution.After condensing crystallizing, pale red powder product can be obtained.
Embodiment 2
The present embodiment is the application example that plumbous zinc sulphur bulk flotation of the present invention is separated inhibitor.
1, raw mineral materials:
The stanniferous Pb-Zn deposits in Guangxi, ore properties: tin 0.4%, Zn content is 1.8%, plumbous 0.8%, sulfur content is 14%.In ore, essential mineral is galena, marmatite, pyrite, marcasite, magnetic iron ore, cassiterite, calcite, quartz and a small amount of bloodstone etc.
2, regime of agent and operating condition: ore first-selection corase grind ore deposit is to-200 orders 62%, and add sulfuric acid 3kg/t, copper sulphate 400g/t, butyl xanthate 400g/t, No. 2 oily 40g/t, carry out sulphide ore bulk flotation, and mine tailing shaking table selects tin.Sulphide ore bulk concentrate is concentrated into concentration 40%, add flotation separation of lead zinc ore inhibitor 800g/t of the present invention, flotation is carried out after sizing mixing 5 minutes, selected two add flotation separation of lead zinc ore inhibitor 300g/t of the present invention again, scan two and add flotation separation of lead zinc ore inhibitors 4 00g/t of the present invention, through one roughing, four times selected, scan for three times, obtain lead concentrate grade 48%, plumbous containing zinc 4.5%, the index of lead recovery 83%.
Embodiment 3
The present embodiment is the Another Application example that plumbous zinc sulphur bulk flotation of the present invention is separated inhibitor.
1, raw mineral materials:
Burma's Pb-Zn deposits, ore properties: plumbous 0.6%, Zn content is 2.21%, and sulfur content is 5.9%, tin 0.6%.The main valuable constituent of ore is tin, is secondly zinc and lead.Ore essential mineral oil galena, zincblende, cassiterite, tourmaline, pyrite, quartz, feldspar and limonite etc.
2, regime of agent and operating condition: ore ore grinding, to-200 orders 70%, adds water and concentration is adjusted to 35%, adds copper sulphate 250g/t, butyl xanthate 300g/t, No. 2 oily 60g/t, carry out the bulk flotation of plumbous zinc sulphur, and mine tailing re-uses shaking table and reclaims cassiterite.Sulphide ore bulk concentrate the concentration escapes the medicine, adding clear water to concentration 35%, add flotation separation of lead zinc ore inhibitor 1200g/t of the present invention, carry out flotation after sizing mixing 5 minutes, selected two add flotation separation of lead zinc ore inhibitors 4 00g/t of the present invention again, scan two and add flotation separation of lead zinc ore inhibitor 500g/t of the present invention, through one roughing, four times selected, scan for three times, lead concentrate grade 53%, plumbous containing zinc 6.7%, lead recovery 75%.

Claims (1)

1. plumbous zinc bulk flotation is separated a preparation method for inhibitor, it is characterized in that, comprises the steps:
(1) get Congo red 1 part, 0.3 part, NaOH, is mixed with 30wt% solution, stirs 15 minutes under 60 DEG C of conditions;
(2) get 3 parts, zinc sulfate, sodium dithionite 1 part, pyrogallic acid 0.2 part, is mixed with the aqueous solution of 30wt%, stirs 15 minutes under 20-25 DEG C of condition;
(3) product mixing step (1) and (2) obtained, under 20-25 DEG C of condition, stirs 10 minutes, obtain light red solution, after condensing crystallizing, obtain pale red powder product, be described plumbous zinc bulk flotation and be separated inhibitor.
CN201510860616.0A 2015-11-30 2015-11-30 A kind of lead zinc sulphur bulk flotation separates the preparation method of inhibitor Active CN105312161B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108636612A (en) * 2018-05-22 2018-10-12 中南大学 A kind of metal sulfide depressing agent and its application
CN109453901A (en) * 2018-07-27 2019-03-12 广西大学 A kind of method for floating of Interfacial complexation zinc sulfide ore
CN111013827A (en) * 2019-12-12 2020-04-17 西藏华泰龙矿业开发有限公司 Beneficiation method for recycling copper-lead-zinc oxide ore with high mud content, high oxidation rate and high sulfur oxide
CN112246445A (en) * 2020-08-27 2021-01-22 中国恩菲工程技术有限公司 Foam sorting activator and application thereof
CN114453142A (en) * 2022-01-14 2022-05-10 张志� Lead-zinc sulfide mineral flotation carbon inhibitor and process

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CN103721857A (en) * 2013-12-31 2014-04-16 广西大学 Method for preparing willemite mineral collecting agent
CN103949351A (en) * 2014-05-15 2014-07-30 北京矿冶研究总院 Flotation inhibitor and preparation and use methods thereof
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US5221466A (en) * 1989-04-20 1993-06-22 Freeport-Mcmoran Resource Partners, Limited Partnership Phosphate rock benefication
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108636612A (en) * 2018-05-22 2018-10-12 中南大学 A kind of metal sulfide depressing agent and its application
CN109453901A (en) * 2018-07-27 2019-03-12 广西大学 A kind of method for floating of Interfacial complexation zinc sulfide ore
CN111013827A (en) * 2019-12-12 2020-04-17 西藏华泰龙矿业开发有限公司 Beneficiation method for recycling copper-lead-zinc oxide ore with high mud content, high oxidation rate and high sulfur oxide
CN112246445A (en) * 2020-08-27 2021-01-22 中国恩菲工程技术有限公司 Foam sorting activator and application thereof
CN112246445B (en) * 2020-08-27 2022-06-10 中国恩菲工程技术有限公司 Foam sorting activator and application thereof
CN114453142A (en) * 2022-01-14 2022-05-10 张志� Lead-zinc sulfide mineral flotation carbon inhibitor and process
CN114453142B (en) * 2022-01-14 2023-11-24 张志� Lead-zinc sulfide mineral flotation carbon inhibitor and process

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