CN101850290A - Method for pretreating ore pulp in lead and zinc oxide flotation process - Google Patents
Method for pretreating ore pulp in lead and zinc oxide flotation process Download PDFInfo
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- CN101850290A CN101850290A CN201010183527A CN201010183527A CN101850290A CN 101850290 A CN101850290 A CN 101850290A CN 201010183527 A CN201010183527 A CN 201010183527A CN 201010183527 A CN201010183527 A CN 201010183527A CN 101850290 A CN101850290 A CN 101850290A
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Abstract
The invention relates to a method for pretreating ore pulp in a lead and zinc oxide flotation process. In the method, after a pH regulator, an inhibitor and a collector are added in turn before the rough concentration of lead and zinc oxides, stirring and pulp regulating are performed respectively, pulp regulating is also performed before the concentration of rough concentrate and before the centralized flotation of middling, and the pulp regulating time is 5 to 20 minutes. When the method is used, a medicament in the ore pulp can fully act with the surfaces of mineral particles and inevitable ions, so the influences of slime and the inevitable ions in the ore pulp on an ore dressing process are avoided; meanwhile, full pulp regulating is performed after the collector is added, the hydrophobic agglomeration of zinc and lead oxide mineral particles is strengthened and micro particle recovery is enhanced; and the pulp regulating is performed before the concentration and the centralized processing of the middling, so the quality of the concentrate is improved without influencing the recovery rate. Compared with the prior art, the method of the invention has the advantages of improving mineral sorting efficiency, promoting the floating recovery of micro lead and zinc oxide ores, and reaching a sorting standard of improving the quality of the concentrate by 5 to 10 percent under a condition of guaranteeing the concentrate recovery rate.
Description
Technical field
The invention belongs to ore dressing field, relate at lead-zinc oxide ore flotation and reclaim the pretreated method of plumbous zinc process ore pulp.
Background technology
The plumbous zinc resource reserves of China are abundant, occupy the second place of the world.But the plumbous zinc ore of China only utilizes high-grade oxide ore and a small amount of sulphide ore at present, and a large amount of low-grade lead-zinc stones can't utilize.Lead-zinc deposit Yunnan Lan Ping lead-zinc bed with China's maximum is an example, at present mainly utilized lead-zinc sulfide ore and a little zinc grade to be higher than 15% lead-zinc, then store up near the mine after a large amount of low-grade lead-zinc exploitations, caused a large amount of wastes of resource.Therefore, the sorting technology of raising the type lead-zinc is the most important approach that guarantees the plumbous zinc resource supply of China.
The hysteresis of technique of preparing is the main cause that causes lead-zinc to be difficult to utilize.Because the contained mineral species of lead-zinc ore is more, ore structural relation complexity, the association component is very unstable, contain a large amount of clays and limonite, and solubility salt mineral, although therefore the research of lead-zinc ore dressing has been carried out a lot of years, still there are a lot of problems in the lead-zinc ore dressing.
The technique of preparing of lead-zinc ore dressing has up to now been studied a lot, but mainly concentrate on the research of employed pH adjustment agent, inhibitor and collecting agent in the lead-zinc oxide ore flotation process, for stirring the correlative study size mixing in the floatation process but seldom, particularly during commercial Application, usually only pay close attention to the influence of dosing in the floatation process, temperature, pH values of pulp etc., ignored and stirred the influence of sizing mixing and bringing in the floatation process.
The present invention adopts stirring to size mixing ore pulp is carried out preliminary treatment for the abundant effect of accelerating oxidation lead-zinc ore floating medicament and mineral.The commerical test result of implementation shows that application of the present invention can improve zinc metal content 5～10%, and the ore dressing of lead-zinc is had important function, so propose the present invention.
Summary of the invention
The purpose of this invention is to provide a kind of mineral that can improve and sort efficient, promote the flotation of micro lead and zinc to reclaim; sorting index is compared with prior art under the condition that guarantees the concentrate rate of recovery, and concentrate grade improves the preprocess method of ore pulp in 5～10% the lead-zinc oxide ore flotation process.The preprocess method of ore pulp in a kind of lead-zinc oxide ore flotation process: for selected lead-zinc slurry, suitable add snack made with traditional Chinese medicines to add medicament after and before rough concentrate is selected and chats concentrates choosing again, ore pulp is carried out the stirring of suitable time and size mixing, strengthen the lead-zinc oxide ore flotation process.
For selected lead-zinc ore pulp is the mine tailing or the ore pulp of lead oxide zinc ore crude behind ore grinding of lead-zinc sulfide ore flotation.Refer to before lead oxide zinc is roughly selected, add successively all stir respectively after pH adjusts agent, inhibitor, collecting agent and size mixing at the suitable snack made with traditional Chinese medicines that adds.The mixing time of each operation of sizing mixing is 5～20 minutes.
Among the present invention, before lead-zinc oxide ore flotation is roughly selected respectively add the snack made with traditional Chinese medicines dosing after, sized mixing respectively 5～20 minutes, and medicament and the surperficial and unavoidable ion of mineral grain in the ore pulp were fully acted on, thereby eliminate sludge and the influence of ion pair ore dressing process unavoidably in the ore pulp; After adding collecting agent, fully size mixing in addition, can strengthen hydrophobic poly-group between the particle of zinc-lead oxide mineral, help the recovery of micro-size fraction; Size mixing before the choosing selected concentrating again, can under the prerequisite that does not influence the rate of recovery, improve concentrate grade with chats.
Compare with traditional handicraft, adopt the present invention can improve mineral and sort separative efficiency, promote the hydrophobic poly-group of micro lead and zinc, compared with prior art under the condition that guarantees the concentrate rate of recovery, concentrate grade can improve 5～10% to sorting index.
Description of drawings
Fig. 1 is a lead-zinc oxide ore flotation size mixing technology flow process.
Dotted portion is that medicament adds the some schematic diagram among the figure
The specific embodiment
The present invention is further described below in conjunction with embodiment, and can not limit the present invention.
Embodiment 1
Ore sample is the Yunnan lead-zinc, and zinc oxide flotation open circuit flow process is that one roughing primary cleaning once purging selection, cleaner tailings and scavenger concentrate are merged into chats.Roughly selecting after the dosing under the different mixings time zinc oxide sorts and the results are shown in Table 1.
Table 1 is roughly selected after the dosing zinc oxide sorting index under the different mixing time conditions
By table 1 data as can be known, by the proper extension mixing time, help the flotation of zinc oxide to reclaim, its concentrate grade and the rate of recovery all increase, and wherein the rate of recovery can improve about 13%.
Embodiment 2
Ore sample is the Yunnan lead-zinc, and lead-zinc industry flotation flowsheet flow chart and the stirring schematic diagram of sizing mixing is seen Fig. 1, under the identical condition of regime of agent, strengthens chats and concentrates the comparative test result that stir the back and rough concentrate stirs to see Table 2.
Stir the contrast index in table 2 commerical test
As seen from the above table, before rough concentrate is selected with before the chats flotation, add agitator reinforcement stirring, can significantly improve the concentrate grade that sorts.
Claims (2)
1. the pretreated method of ore pulp in the lead-zinc oxide ore flotation process is characterized in that: add pH successively and adjust all to stir respectively behind agent, inhibitor, the collecting agent and size mixing before the lead-zinc ore pulp is roughly selected; And before the selected and chats of rough concentrate concentrated choosing again, stirring was sized mixing, and mixing time is 5～20 minutes.
2. the pretreated method of ore pulp in the lead-zinc oxide ore flotation process according to claim 1 is characterized in that: mine tailing that described lead-zinc ore pulp is the lead-zinc sulfide ore flotation or the ore pulp of lead oxide zinc ore crude behind ore grinding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010183527A CN101850290A (en) | 2010-05-26 | 2010-05-26 | Method for pretreating ore pulp in lead and zinc oxide flotation process |
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| CN201010183527A CN101850290A (en) | 2010-05-26 | 2010-05-26 | Method for pretreating ore pulp in lead and zinc oxide flotation process |
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| CN101850290A true CN101850290A (en) | 2010-10-06 |
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| CN201010183527A Pending CN101850290A (en) | 2010-05-26 | 2010-05-26 | Method for pretreating ore pulp in lead and zinc oxide flotation process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489409A (en) * | 2011-12-26 | 2012-06-13 | 昆明理工大学 | Method for adjusting pH value of ore pulp in flotation process of zinc oxide ore |
| CN103706466A (en) * | 2014-01-10 | 2014-04-09 | 重钢西昌矿业有限公司 | Beneficiation method allowing mohsiteto to be recycled from ilmenite iron beneficiation tailings |
| CN105013618A (en) * | 2015-07-29 | 2015-11-04 | 昆明理工大学 | Heating floatation method for middling pulp in zinc oxide ore |
| CN105689150A (en) * | 2016-04-15 | 2016-06-22 | 中南大学 | Lead-zinc oxide ore flotation inhibitor and application thereof |
| CN106179762A (en) * | 2016-07-15 | 2016-12-07 | 昆明理工大学 | A kind of beneficiation method of low-grade shale zinc oxide ore |
| CN107570326A (en) * | 2017-09-12 | 2018-01-12 | 东北大学 | A kind of method of smithsonite type zinc oxide ore flotation desilication |
| CN109939831A (en) * | 2019-04-03 | 2019-06-28 | 成都市锐晨科技有限公司 | Lead-zinc automation control heats curing system |
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| US3954450A (en) * | 1975-03-26 | 1976-05-04 | The Anaconda Company | Recovery of lead, zinc and iron sulfide |
| SU1837989A3 (en) * | 1991-01-17 | 1993-08-30 | Иhctиtуt "Гиhцbetmet", Aлtaйckий Гophooбoгatиteльhый Komбиhat | Method of flotation for separation of lead-zinc ores and products |
| CN1820853A (en) * | 2006-02-09 | 2006-08-23 | 陈铁 | Beneficiation method for zinc oxide mine |
| CN1986071A (en) * | 2006-12-06 | 2007-06-27 | 山东国大黄金股份有限公司 | Floating process for enriching Cu, Ag, Au, etc from gold sulfide ore cyanizing gold extraction tailing |
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2010
- 2010-05-26 CN CN201010183527A patent/CN101850290A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3954450A (en) * | 1975-03-26 | 1976-05-04 | The Anaconda Company | Recovery of lead, zinc and iron sulfide |
| SU1837989A3 (en) * | 1991-01-17 | 1993-08-30 | Иhctиtуt "Гиhцbetmet", Aлtaйckий Гophooбoгatиteльhый Komбиhat | Method of flotation for separation of lead-zinc ores and products |
| CN1820853A (en) * | 2006-02-09 | 2006-08-23 | 陈铁 | Beneficiation method for zinc oxide mine |
| CN1986071A (en) * | 2006-12-06 | 2007-06-27 | 山东国大黄金股份有限公司 | Floating process for enriching Cu, Ag, Au, etc from gold sulfide ore cyanizing gold extraction tailing |
Non-Patent Citations (2)
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| 《有色金属(选矿部分)》 19881231 刘东 十八碳胺浮选氧化锌矿物的研究与实践 24-26 1-2 , 第6期 * |
| 《矿产综合利用》 19831231 邝镇国 低品位氧化铅锌矿选矿研究 50-54 1-2 , 第4期 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489409A (en) * | 2011-12-26 | 2012-06-13 | 昆明理工大学 | Method for adjusting pH value of ore pulp in flotation process of zinc oxide ore |
| CN103706466A (en) * | 2014-01-10 | 2014-04-09 | 重钢西昌矿业有限公司 | Beneficiation method allowing mohsiteto to be recycled from ilmenite iron beneficiation tailings |
| CN103706466B (en) * | 2014-01-10 | 2016-02-24 | 重钢西昌矿业有限公司 | A kind of beneficiation method of schreyerite iron selection tailings recovery Pd iron ore |
| CN105013618A (en) * | 2015-07-29 | 2015-11-04 | 昆明理工大学 | Heating floatation method for middling pulp in zinc oxide ore |
| CN105689150A (en) * | 2016-04-15 | 2016-06-22 | 中南大学 | Lead-zinc oxide ore flotation inhibitor and application thereof |
| CN105689150B (en) * | 2016-04-15 | 2018-07-06 | 中南大学 | A kind of lead-zinc oxide ore flotation inhibitor and its application |
| CN106179762A (en) * | 2016-07-15 | 2016-12-07 | 昆明理工大学 | A kind of beneficiation method of low-grade shale zinc oxide ore |
| CN106179762B (en) * | 2016-07-15 | 2018-07-24 | 昆明理工大学 | A kind of beneficiation method of low-grade shale zinc oxide ore |
| CN107570326A (en) * | 2017-09-12 | 2018-01-12 | 东北大学 | A kind of method of smithsonite type zinc oxide ore flotation desilication |
| CN107570326B (en) * | 2017-09-12 | 2019-08-20 | 东北大学 | A kind of method of smithsonite type zinc oxide ore flotation desilication |
| CN109939831A (en) * | 2019-04-03 | 2019-06-28 | 成都市锐晨科技有限公司 | Lead-zinc automation control heats curing system |
| CN109939831B (en) * | 2019-04-03 | 2024-04-26 | 成都市锐晨科技有限公司 | Automatic control heating and vulcanizing system for lead zinc oxide ores |
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Application publication date: 20101006 |