CN103949351B - Flotation inhibitor and preparation and use methods thereof - Google Patents
Flotation inhibitor and preparation and use methods thereof Download PDFInfo
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- CN103949351B CN103949351B CN201410204788.8A CN201410204788A CN103949351B CN 103949351 B CN103949351 B CN 103949351B CN 201410204788 A CN201410204788 A CN 201410204788A CN 103949351 B CN103949351 B CN 103949351B
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Abstract
A flotation inhibitor and preparation and use methods thereof relate to mineral separation, in particular to a flotation inhibitor for separating copper and molybdenum bulk concentrates to obtain molybdenum concentrates and copper concentrates, and preparation and use methods thereof. The flotation inhibitor is a liquid organic medicament obtained by chemical reaction of mercaptoacetic acid, gallic acid and sodium hydroxide serving as raw materials. The inhibitor is a liquid organic agent prepared by chemical reaction of pyrogallic acid, thioglycollic acid and sodium hydroxide, can effectively inhibit primary and secondary copper sulfide ores such as chalcopyrite, chalcocite and the like, and can realize effective separation of copper-molybdenum bulk concentrates. The invention not only overcomes the defects of large using amount of common sodium sulfide, severe operating environment and serious pollution, but also has the characteristics of convenient addition, safe use and the like. Provides an effective method with less medicament dosage, convenient use and less environmental pollution for separating the copper sulfide molybdenum bulk concentrate.
Description
Technical field
A kind of depressing agent and preparation and application, relate to a kind of Mineral separation, a kind of copper molybdenum bulk concentrate isolated molybdenum concntrate and the depressing agent of copper concentrate and preparation and application.
Background technology
For a long time, in copper-molybdenum thing separation process, realizing copper-molybdenum thing isolated molybdenum concntrate and copper concentrate frequently with substantial amounts of sodium sulfide as the inhibitor of copper mineral, amount of sodium sulfide typically needs about 30kg/t.It is high that a large amount of use sodium sulfide not only produce processing cost, unnecessary financial burden is caused to enterprise, on the other hand the aqueous solution of sodium sulfide can give out unpleasant toxic gas, this unpleasant gas is exactly the hydrogen sulfide discharged from water, it can make people's nausea and vomiting after being absorbed in a large number by people at once, even dyspnea, suffocate, there is strong intoxicating sense.Sodium sulfide is the biggest to the harm of human and environment.When using sodium sulfide, operator should put on protective garment, wears protective mast, operates very inconvenient.
Summary of the invention
The purpose of the present invention is aiming at the deficiency that above-mentioned prior art exists, it is provided that a kind of can effectively reduce inhibitor consumption, reduces environmental pollution, the depressing agent improving working condition and preparation and make and method.
The present invention is to reach above-mentioned purpose by the following technical solutions.
A kind of depressing agent, it is characterised in that this depressing agent is with TGA, gallic acid, sodium hydroxide as raw material, the organic medicament of liquid obtained by chemical reaction.
A kind of preparation method of the depressing agent of the present invention, it is characterized in that this depressing agent preparation process is in the reactor, by TGA, gallic acid, sodium hydroxide, 1 ~ 2:0.1 ~ 4:1.3 ~ 6.5 mix in molar ratio, react 0.5～24 hour at a temperature of 15～100 DEG C, the organic medicament of liquid that the cooling of products therefrom room temperature obtains is this depressing agent.
A kind of using method of the depressing agent of the present invention, it is characterized in that being used for described depressing agent the separation process of copper molybdenum bulk concentrate, described depressing agent is realized copper-molybdenum thing isolated molybdenum concntrate and copper concentrate as the inhibitor of copper mineral.
The using method of a kind of depressing agent of the present invention, it is characterised in that described copper molybdenum bulk concentrate is that copper-molybdenum raw ore is carried out flotation, the copper molybdenum bulk concentrate obtained.
A kind of using method of the depressing agent of the present invention, it is characterized in that described copper molybdenum bulk concentrate process, first copper-molybdenum raw ore carries out the copper molybdenum bulk concentrate that flotation obtains concentrate in hydrocyclone, carry out floating agent removing, carry out the separation of copper molybdenum bulk concentrate again to roughly select, respectively obtain molybdenum rough concentrate and copper concentrate；Molybdenum rough concentrate carries out the selected molybdenum concntrate that obtains the most again, and separation rougher tailings is copper concentrate.
A kind of using method of the depressing agent of the present invention, it is characterized in that described copper molybdenum bulk concentrate separation is roughly selected is 2 times, respectively first separation molybdenum is roughly selected, secondary separation is roughly selected, and the concentrate that twice separation is roughly selected merges into molybdenum rough concentrate, and separation rougher tailings is copper concentrate.
The using method of a kind of depressing agent of the present invention, it is characterised in that its copper-cobalt ore is sequentially added into inhibitor, kerosene when roughly selecting；Described secondary copper-cobalt ore is sequentially added into inhibitor, kerosene when roughly selecting.
A kind of using method of the depressing agent of the present invention, it is characterized in that its molybdenum selected be 6 times, be respectively that molybdenum is selected, secondary molybdenum is selected, three molybdenums are selected, four molybdenums are selected, five molybdenums are selected, six molybdenums are selected, each time in the middling recurrence last time beneficiation steps in refining process.
The using method of a kind of depressing agent of the present invention, it is characterised in that the selected middle addition waterglass of its molybdenum and inhibitor；Its secondary molybdenum selected addition inhibitor and kerosene；Its three molybdenum selected addition waterglass and inhibitor；The selected middle addition inhibitor of its four molybdenums and kerosene；Its five molybdenum selected addition inhibitor and kerosene；Its six molybdenum selected addition inhibitor.
A kind of using method of the depressing agent of the present invention, it is characterized in that copper-cobalt ore is roughly selected, the waterglass consumption of selected middle addition is 0-6000g/t copper molybdenum bulk concentrate, the consumption of the inhibitor added is 500-10000g/t copper molybdenum bulk concentrate, and the kerosene consumption of addition is 30-500g/t copper molybdenum bulk concentrate.
A kind of depressing agent of the present invention is the organic medicament of liquid prepared through chemical reaction with pyrogallic acid, TGA, sodium hydroxide, as the inhibitor of copper sulfur mineral in copper-cobalt ore flotation, its inhibitor is primary to Chalkopyrite, vitreous copper etc. and secondary copper sulfide mineral all can effectively suppress, and can effectively realize efficiently separating of copper molybdenum bulk concentrate.The present invention not only overcomes that conventional amount of sodium sulfide is big, severe operational environment, with serious pollution shortcoming, the most also has interpolation convenient, uses the features such as safety.Separate for copper sulfide molybdenum bulk concentrate and provide the effective ways that a kind of dosing is few, easy to use, low in the pollution of the environment.
Accompanying drawing explanation
Fig. 1 is the process chart of the using method of a kind of depressing agent of the present invention.
Detailed description of the invention
A kind of depressing agent, this inhibitor is with TGA, gallic acid, sodium hydroxide as raw material, the organic medicament of liquid obtained by chemical reaction.The preparation of inhibitor is with TGA, gallic acid, sodium hydroxide as raw material, TGA, gallic acid, sodium hydroxide 1 ~ 2:0.1 in molar ratio ~ 4:1.3 ~ 6.5 are mixed, reacting 0.5～24 hour at 15～100 DEG C, the clear liquid prepared is this inhibitor.
The using method of a kind of depressing agent of the present invention, is used for the separation process of copper molybdenum bulk concentrate by described depressing agent, and as the inhibitor of copper mineral, described depressing agent is realized copper-molybdenum thing isolated molybdenum concntrate and copper concentrate.
Before copper-cobalt ore is roughly selected, first the raw ore of copper-molybdenum thing is carried out flotation, obtain described copper molybdenum bulk concentrate.Copper molybdenum bulk concentrate is concentrated in hydrocyclone, removing residue floating agent, then carry out copper-cobalt ore and roughly select.Copper molybdenum bulk concentrate after concentrating adds flotation cell after sizing mixing, and is sequentially added into inhibitor, kerosene stirring flotation, respectively obtains molybdenum rough concentrate and copper concentrate, molybdenum rough concentrate carries out the selected molybdenum concntrate that obtains the most again, and separation rougher tailings is copper concentrate.
It is 2 times that described copper-cobalt ore is roughly selected, and respectively first separation is roughly selected, secondary separation is roughly selected, and the concentrate that twice separation is roughly selected merges into molybdenum rough concentrate, separates remaining mine tailing in roughly selecting pit and is copper concentrate.
Described molybdenum is selected is 6 times, and respectively one time molybdenum is selected, secondary molybdenum is selected, three molybdenums are selected, four molybdenums are selected, five molybdenums are selected, six molybdenums are selected, in the most selected middling recurrence last time beneficiation steps.Concrete concentration times can select as the case may be.Described waterglass and inhibitor can be added during a described molybdenum is selected；The selected middle addition waterglass of a described molybdenum and；Described secondary molybdenum selected addition inhibitor and kerosene；Three times described molybdenum selected addition waterglass and inhibitor；The selected middle addition inhibitor of four times described molybdenums and kerosene；Five times described molybdenum selected addition inhibitor and kerosene；Six times described molybdenum selected addition inhibitor.
Copper-cobalt ore roughly select with time selected during, concrete add described in waterglass time, mixing time is about 2 minutes, and during inhibitor described in addition, mixing time is about 3 minutes, and during kerosene described in addition, mixing time is about 2 minutes.
Copper molybdenum bulk concentrate is sequentially added into by waterglass, inhibitor, the order of kerosene, and is stirred by the present invention respectively, through roughly selecting for twice, selected obtains containing molybdenum more than 45%, containing the molybdenum molybdenum concntrate less than 1.2% for six times.
Embodiment 1
One example of the preparation method of inhibitor of the present invention, comprises the following steps:
In the reactor, 1:0.5:1.7 adds TGA, gallic acid, sodium hydroxide in molar ratio, keeps reaction temperature 50 DEG C reaction 4h, and cooling obtains clear transparent solutions and is this depressing agent.
Embodiment 2
Another example of the preparation method of inhibitor of the present invention, comprises the following steps:
In the reactor, 1.5:0.4:2.3 adds TGA, gallic acid, sodium hydroxide in molar ratio, keeps reaction temperature 70 DEG C reaction 2h, and cooling obtains clear transparent solutions and is this depressing agent.
Embodiment 3
The present embodiment is the application example that described depressing agent separates copper-molybdenum thing in copper molybdenum bulk flotation concentrate.
Certain copper sulfide molybdenum ore raw ore obtains copper molybdenum bulk concentrate after copper molybdenum bulk flotation, bulk concentrate contains molybdenum 0.32%, cupric 22.65%, to size mixing in addition flotation device after copper molybdenum bulk concentrate the concentration escapes the medicine, and be sequentially added into waterglass, inhibitor, kerosene, and stir, through roughly selecting for twice, six times selected, can obtain containing molybdenum 46.15%, the molybdenum concntrate of cupric 0.79%.Add waterglass consumption be 1500g/t to ore deposit, the consumption of the inhibitor of addition be 6500g/t to ore deposit, the kerosene consumption of addition is that 150g/t is to ore deposit.Described inhibitor uses the depressing agent that embodiment 1 or embodiment 2 prepare.
Embodiment 4
Certain copper sulfide molybdenum ore raw ore obtains copper molybdenum bulk concentrate after copper molybdenum bulk flotation, containing molybdenum 0.23%, cupric 25.36%, to size mixing in addition flotation device after copper molybdenum bulk concentrate the concentration escapes the medicine, and be sequentially added into waterglass, highly efficient depressor, kerosene, and stir, through roughly selecting for twice, six times selected, can obtain containing molybdenum 45.82%, the molybdenum concntrate of cupric 0.93%.The waterglass consumption added is 1600g/t, and the consumption of the inhibitor of addition is 7000g/t, and the kerosene consumption of addition is 110g/t.Described inhibitor uses the depressing agent that embodiment 1 or embodiment 2 prepare.
Claims (9)
1. a depressing agent, it is characterised in that this depressing agent is with TGA, gallic acid, sodium hydroxide as raw material, the organic medicament of liquid obtained by chemical reaction；This depressing agent preparation process is with TGA, gallic acid, sodium hydroxide as raw material, TGA, gallic acid, sodium hydroxide 1 ~ 2:0.1 in molar ratio ~ 4:1.3 ~ 6.5 are mixed, reacting 0.5～24 hour at 15～100 DEG C, the clear liquid prepared is this inhibitor.
The using method of a kind of depressing agent the most according to claim 1, it is characterized in that being used for described depressing agent the separation process of copper molybdenum bulk concentrate, described depressing agent is realized copper-molybdenum thing isolated molybdenum concntrate and copper concentrate as the inhibitor of copper mineral.
The using method of a kind of depressing agent the most according to claim 2, it is characterised in that described copper molybdenum bulk concentrate is that copper-molybdenum raw ore is carried out flotation, the copper molybdenum bulk concentrate obtained.
The using method of a kind of depressing agent the most according to claim 2, it is characterized in that described copper molybdenum bulk concentrate separation process, first copper-molybdenum raw ore carries out the copper molybdenum bulk concentrate that flotation obtains concentrate in hydrocyclone, carry out floating agent removing, carry out the separation of copper molybdenum bulk concentrate again to roughly select, respectively obtain molybdenum rough concentrate and copper concentrate；Molybdenum rough concentrate carries out the selected molybdenum concntrate that obtains the most again, and separation rougher tailings is copper concentrate.
The using method of a kind of depressing agent the most according to claim 4, it is characterized in that the described copper molybdenum bulk concentrate that carries out separates that to roughly select be 2 times, respectively first separation copper molybdenum is roughly selected, secondary separation copper molybdenum is roughly selected, the concentrate that twice separation is roughly selected merges into molybdenum rough concentrate, and separation rougher tailings is copper concentrate.
The using method of a kind of depressing agent the most according to claim 5, it is characterised in that its copper-cobalt ore is sequentially added into inhibitor, kerosene when roughly selecting；Described secondary copper-cobalt ore is sequentially added into inhibitor, kerosene when roughly selecting.
The using method of a kind of depressing agent the most according to claim 5, it is characterized in that its molybdenum selected be 6 times, be respectively that molybdenum is selected, secondary molybdenum is selected, three molybdenums are selected, four molybdenums are selected, five molybdenums are selected, six molybdenums are selected, each time in the middling recurrence last time beneficiation steps in refining process.
The using method of a kind of depressing agent the most according to claim 7, it is characterised in that the selected middle addition waterglass of its molybdenum and inhibitor；Its secondary molybdenum selected addition inhibitor and kerosene；Its three molybdenum selected addition waterglass and inhibitor；The selected middle addition inhibitor of its four molybdenums and kerosene；Its five molybdenum selected addition inhibitor and kerosene；Its six molybdenum selected addition inhibitor.
The using method of a kind of depressing agent the most according to claim 8, it is characterized in that copper-cobalt ore is roughly selected, the waterglass consumption of selected middle addition is 0-6000g/t copper molybdenum bulk concentrate, the consumption of the inhibitor added is 500-10000g/t copper molybdenum bulk concentrate, and the kerosene consumption of addition is 30-500g/t copper molybdenum bulk concentrate.
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| CN201410204788.8A CN103949351B (en) | 2014-05-15 | 2014-05-15 | Flotation inhibitor and preparation and use methods thereof |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368451B (en) * | 2014-09-30 | 2017-05-31 | 阿克塞海源矿业有限公司 | Molybdenum floatation process |
| CN104841566A (en) * | 2015-05-06 | 2015-08-19 | 广西大学 | Chalcopyrite inhibitor preparing method |
| CN104815762B (en) * | 2015-05-06 | 2017-03-01 | 广西大学 | A kind of preparation method of tennantite collecting agent |
| CN105312161B (en) * | 2015-11-30 | 2017-06-23 | 广西大学 | A kind of lead zinc sulphur bulk flotation separates the preparation method of inhibitor |
| CN105537002A (en) * | 2015-12-17 | 2016-05-04 | 昆明孚锐特经贸有限公司 | Preparation and application of flotation separation inhibitor for mixed copper sulfide and molybdenum concentrate |
| CN105665149B (en) * | 2016-01-15 | 2018-04-20 | 中南大学 | A kind of preparation method and applications of non-molybdenum sulphide mineral flotation inhibitor |
| US10369577B2 (en) | 2016-10-07 | 2019-08-06 | Cytec Industries Inc. | Compositions and methods for selective separation of minerals from sulfide ores |
| CN106583057B (en) * | 2016-12-15 | 2019-09-13 | 云南健牛生物科技有限公司 | A kind of preparation and application vulcanizing copper-molybdenum separating flotation inhibitor |
| CN108435435B (en) * | 2018-04-20 | 2020-09-04 | 北京矿冶科技集团有限公司 | Environment-friendly copper-sulfur inhibitor and preparation method, use method and application thereof |
| CN108636612B (en) * | 2018-05-22 | 2019-10-18 | 中南大学 | A kind of metal sulfide depressing agent and its application |
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Inventor after: Wang Jinling Inventor after: Wu Guiye Inventor after: Liu Longli Inventor after: Shen Shifu Inventor after: Zhang Jie Inventor after: Li Chongde Inventor after: He Wei Inventor after: Ai Jing Inventor after: Liu Haiying Inventor before: Wang Jinling Inventor before: Liu Longli Inventor before: Shen Shifu Inventor before: Wu Guiye Inventor before: Li Chongde Inventor before: Zhang Jie Inventor before: Ai Jing Inventor before: Liu Haiying |
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