CN101816977A - Method for regulating pH value of ore pulp in lead-zinc oxide ore flotation process - Google Patents
Method for regulating pH value of ore pulp in lead-zinc oxide ore flotation process Download PDFInfo
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- CN101816977A CN101816977A CN 201010183526 CN201010183526A CN101816977A CN 101816977 A CN101816977 A CN 101816977A CN 201010183526 CN201010183526 CN 201010183526 CN 201010183526 A CN201010183526 A CN 201010183526A CN 101816977 A CN101816977 A CN 101816977A
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Abstract
The invention relates to a method for regulating the pH value of ore pulp in a lead-zinc oxide ore flotation process. In the method, sodium carbonate is used as a pH regulator to regulate lead-zinc oxide ore pulp so as to regulate the pH value of the ore pulp to between 9 and 11, the pulp is regulated till the time when the pH value of the ore pulp keeps constant, and after that, an inhibitor and a collector are added for flotation. Compared with the prior art, the method has the advantages that: complex ores which contain a large amount of ore slime and inevitable ions and cannot be processed by the conventional process can be processed; the desliming-free flotation of the lead-zinc oxide ore can be realized; and the flotation process is very stable and easy to control.
Description
Technical field
The present invention relates to a kind of beneficiation method of lead-zinc, relate in particular to the method for adjustment of flotation recovery zinc process pH values of pulp in the lead-zinc.
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 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.
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 flotation technology of lead-zinc ore dressing has up to now been studied a lot, and the main technical scheme that adopts is the sulfuration method, and this technology mainly by adding vulcanized sodium to the ore pulp processing of sizing mixing, adopts xanthate class collecting agent or amine collector to carry out flotation then.The method that the sulfuration back adopts xanthate class collecting agent to carry out flotation is only used the plumbous zinc ore of small amounts, and amine collector (being also referred to as the ammonium sulfide method) is all adopted in a large amount of lead-zinc ore dressings.At present, in the lead-zinc oxide ore flotation of the report research both at home and abroad, generally use vulcanized sodium to adjust agent and vulcanizing agent as pH.
Owing to produce a large amount of sludges in the lead-zinc ore dressing process, it produces very adverse influence to floatation process.Therefore usually will carry out removing of sludge, this will cause metal removing and lose with sludge.Therefore, be badly in need of a kind of new lead-zinc sorting technology, can under the prerequisite that does not influence the lead-zinc recovery, eliminate the influence of sludge,, improve the resource utilization of lead-zinc and also simplify production procedure to realize the not desliming flotation of lead-zinc.Based on above-mentioned purpose, special proposition the present invention.
Summary of the invention
The purpose of this invention is to provide pH values of pulp method of adjustment in a kind of lead-zinc oxide ore flotation process.Can under the prerequisite that does not influence the lead-zinc recovery, eliminate the influence of sludge,, improve the resource utilization of lead-zinc and also simplify production procedure to realize the not desliming flotation of lead-zinc.
PH values of pulp method of adjustment in a kind of lead-zinc oxide ore flotation process is adjusted agent with sodium carbonate as pH the lead-zinc ore pulp is sized mixing, and regulates ore pulp to pH9-11, adds collecting agent after the interpolation inhibitor is sized mixing and carries out flotation.
Described lead-zinc ore pulp is mine tailing or the ore pulp of lead oxide zinc ore crude behind ore grinding that has sorted behind the lead-zinc sulfide ore;
Among the present invention, adopt the pH based on sodium carbonate to adjust agent, pH values of pulp is adjusted between 9～11, the time of sizing mixing no longer changes with pH values of pulp and is as the criterion, and adds inhibitor and collecting agent then and carries out flotation.
Adopting sodium carbonate is that main pH adjustment agent is sized mixing, and binding inhibitors uses, and realizes the FLOTATION SEPARATION of valuable mineral and gangue mineral, reduces the influence of sludge to flotation.Compare with traditional handicraft, adopt the present invention can handle the complex ore that contains a large amount of sludges and unavoidable ion that traditional handicraft can not be handled, can realize the not desliming flotation of lead-zinc, and floatation process is highly stable, be easy to control.
The present invention is further described below in conjunction with embodiment.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Embodiment 1
Ore sample is the Yunnan lead-zinc, and the oxygenation efficiency of this sample ore is 85%, adopts conventional dose to carry out the zinc sulphide flotation, and the intact mine tailing of flotation carries out the zinc oxide flotation, and the experiment process of zinc oxide flotation is seen flow chart 1, and flotation results sees Table 2.
Flotation flowsheet is seen Fig. 1, the results are shown in Table 1.
Table 1 sodium carbonate is adjusted the pH values of pulp flotation results
Embodiment 2
Ore sample is the Xinjiang lead-zinc, and the oxygenation efficiency of this sample ore is 68%, adopts conventional dose to carry out the zinc sulphide flotation, and the intact mine tailing of flotation carries out the zinc oxide flotation, and the experiment process of zinc oxide flotation is seen flow chart 1, and wherein oxide ore flotation pH is 9.8; Flotation results sees Table 2.
Table 2 Xinjiang lead-zinc oxide ore flotation result
Embodiment 3
Ore sample is the Tibet lead-zinc, and this ore sample oxygenation efficiency is more than 95%, directly enters the zinc oxide flotation behind the sample ore ore grinding, and flotation flowsheet figure sees flow chart 1, and wherein oxide ore flotation pH is 9.6; Flotation results sees Table 3.
Table 3 Tibet lead-zinc oxide ore flotation result
Claims (2)
1. the method that pH values of pulp is adjusted in the lead-zinc oxide ore flotation process is characterized in that: adjust agent with sodium carbonate as pH the lead-zinc ore pulp is sized mixing, regulate ore pulp to pH9～11, add the inhibitor back of sizing mixing and add collecting agent and carry out flotation;
2. method according to claim 1 is characterized in that: described lead-zinc ore pulp is mine tailing or the ore pulp of lead oxide zinc ore crude behind ore grinding that has sorted behind the lead-zinc sulfide ore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010183526 CN101816977A (en) | 2010-05-26 | 2010-05-26 | Method for regulating pH value of ore pulp in lead-zinc oxide ore flotation process |
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| CN 201010183526 CN101816977A (en) | 2010-05-26 | 2010-05-26 | Method for regulating pH value of ore pulp in lead-zinc oxide ore flotation process |
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Cited By (8)
| 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 |
| CN103990547A (en) * | 2014-05-07 | 2014-08-20 | 国土资源部昆明矿产资源监督检测中心 | Mineral separating technology for complex zinc oxide mines difficult to separate |
| CN105689150A (en) * | 2016-04-15 | 2016-06-22 | 中南大学 | Lead-zinc oxide ore flotation inhibitor and application thereof |
| CN106423572A (en) * | 2016-11-30 | 2017-02-22 | 长春黄金研究院 | Lead zinc ore flotation method adopting novel combined inhibitor |
| CN107899751A (en) * | 2017-10-31 | 2018-04-13 | 石全能 | The beneficiation method of high mud lead-zinc |
| 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 |
| CN115921123A (en) * | 2022-10-11 | 2023-04-07 | 昆明理工大学 | Novel galena-chalcopyrite separation composite inhibitor and application thereof |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002070138A1 (en) * | 2001-02-28 | 2002-09-12 | Wmc Resources Ltd | Ph adjustment in the flotation of sulphide minerals |
| CN1799698A (en) * | 2006-01-09 | 2006-07-12 | 昆明理工大学 | Method for reclaiming valuable mineral from concentrated tailings of stannum-contained multi-metal sulphide ore |
| CN1810381A (en) * | 2005-01-28 | 2006-08-02 | 黎东明 | Multi-metal cassiterite sulfurizing tail concentrating method |
| US20080197053A1 (en) * | 2007-02-21 | 2008-08-21 | Arr-Maz Custom Chemicals, Inc. | FROTH FLOTATION PROCESS WITH pH MODIFICATION |
| CN101417266A (en) * | 2008-11-19 | 2009-04-29 | 湖南有色金属股份有限公司黄沙坪矿业分公司 | New flotation technique of lead zinc sulphur ore |
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2010
- 2010-05-26 CN CN 201010183526 patent/CN101816977A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002070138A1 (en) * | 2001-02-28 | 2002-09-12 | Wmc Resources Ltd | Ph adjustment in the flotation of sulphide minerals |
| CN1810381A (en) * | 2005-01-28 | 2006-08-02 | 黎东明 | Multi-metal cassiterite sulfurizing tail concentrating method |
| CN1799698A (en) * | 2006-01-09 | 2006-07-12 | 昆明理工大学 | Method for reclaiming valuable mineral from concentrated tailings of stannum-contained multi-metal sulphide ore |
| US20080197053A1 (en) * | 2007-02-21 | 2008-08-21 | Arr-Maz Custom Chemicals, Inc. | FROTH FLOTATION PROCESS WITH pH MODIFICATION |
| CN101417266A (en) * | 2008-11-19 | 2009-04-29 | 湖南有色金属股份有限公司黄沙坪矿业分公司 | New flotation technique of lead zinc sulphur ore |
Cited By (10)
| 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 |
| CN103990547A (en) * | 2014-05-07 | 2014-08-20 | 国土资源部昆明矿产资源监督检测中心 | Mineral separating technology for complex zinc oxide mines difficult to separate |
| 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 |
| CN106423572A (en) * | 2016-11-30 | 2017-02-22 | 长春黄金研究院 | Lead zinc ore flotation method adopting novel combined inhibitor |
| CN107899751A (en) * | 2017-10-31 | 2018-04-13 | 石全能 | The beneficiation method of high mud lead-zinc |
| 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 |
| CN115921123A (en) * | 2022-10-11 | 2023-04-07 | 昆明理工大学 | Novel galena-chalcopyrite separation composite inhibitor and application thereof |
| CN115921123B (en) * | 2022-10-11 | 2024-04-05 | 昆明理工大学 | Novel composite inhibitor for galena-chalcopyrite separation and application thereof |
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Application publication date: 20100901 |