CN115155821A - Sulfide ore activating agent and preparation method thereof - Google Patents
Sulfide ore activating agent and preparation method thereof Download PDFInfo
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- CN115155821A CN115155821A CN202210636504.7A CN202210636504A CN115155821A CN 115155821 A CN115155821 A CN 115155821A CN 202210636504 A CN202210636504 A CN 202210636504A CN 115155821 A CN115155821 A CN 115155821A
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- ammonium chloride
- basic copper
- copper carbonate
- activating agent
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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
- B03D1/002—Inorganic compounds
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
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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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
Abstract
The invention discloses a flotation activator for sulfide ores and a preparation method thereof, belonging to the field of mineral processing flotation. The activating agent consists of 1-2 parts of basic copper carbonate and 2-4 parts of ammonium chloride by mass fraction. Solves the problems of high toxicity of the activating agent copper sulfate of the conventional copper sulfide, great harm to human bodies and water body environment, high price, low activation selectivity, serious metal content and the like; provides necessary guarantee for reasonably and effectively recovering other metal minerals in production, has the advantages of high activation efficiency, low production cost, low toxicity and the like, is green and environment-friendly to environment, has no physical damage to operators, and has no corrosion to flotation equipment.
Description
Technical Field
The invention relates to the technical field of sulfide ore flotation, in particular to a sulfide ore activating agent and a preparation method thereof.
Background
The floatation method is a mineral separation method for separating minerals by utilizing the difference of physicochemical properties of the surfaces of the minerals, and is widely applied to the industry as froth floatation, and is characterized in that under the action of floatation medicaments such as a collecting agent, a regulator, a foaming agent and the like, useful minerals are selectively attached to air bubbles in ore pulp and float to the surface of the ore pulp, and gangue minerals are precipitated to the bottom of the ore pulp to achieve the separation of the useful minerals and the gangue.
The natural floatability of the metal sulfide ore is better, but the composition of general minerals is more complex, and different medicaments are needed to adjust the surface hydrophobicity of the minerals and float the target minerals in stages so as to separate and enrich different metal sulfide ores. Part of the sulphide ores, such as wurtzite, sphalerite, pyrrhotite and the like, have floatability much smaller than other sulphide ores, and the floatability needs to be improved by adding an activating agent.
At present, copper sulfate is mainly used for activating target minerals in industry, inhibitors such as lime, zinc sulfate and sodium sulfite are used for inhibiting non-target minerals, and then foam flotation separation is carried out under the action of xanthate.
Copper sulfate as an activator, however, has the following drawbacks: (1) Copper sulfate belongs to a medium toxicity chemical, and rat orally takes LD 50 :300mg/kg, has certain corrosivity, has great harm to the bodies of workers after long-term contact, has extremely high toxicity to water organisms, and can generate long-term adverse effect on the water environment due to wastewater discharge. And (2) the price of copper sulfate is higher. (3) The selectivity of copper sulphate is not high and excess will activate the inhibited minerals causing the metals in the flotation concentrate to be heavily included. (4) The activation efficiency of the copper sulfate is not high, the activation effect of the copper sulfate is not ideal for refractory zincite and pyrrhotite, and a good index is not achieved. (5) The activation performance of copper sulfate is enhanced along with the enhancement of alkalinity, so that the activation of copper sulfate is generally carried out in a high-alkalinity environment, so that a large amount of lime needs to be added in production, the use amount of lime is increased, the beneficiation cost is increased, the next flotation step needs to use a large amount of sulfuric acid to neutralize the lime in the ore pulp so as to reduce the pH value, or a large amount of activating agent and collecting agent are added to activate and float other sulfide ores, the beneficiation cost is increased, calcium sulfate generated by the reaction of the lime and the sulfuric acid easily blocks pipelines, scales are formed on the surface of equipment, and the continuity of the beneficiation process flow and the recovery rate of gravity separation are seriously influenced; in addition, sulfuric acid can also create corrosion problems for pipelines and beneficiation equipment.
The composite flotation reagent is a new trend of mineral processing and utilization at present, is favorable for exerting the synergistic effect of the flotation reagent, combines the advantages of various reagents, and is better suitable for the complexity of ores to be floated.
Disclosure of Invention
Technical problem to be solved
Overcomes the defects of low selectivity, serious metal content, high toxicity, high price and the like of the existing activator copper sulfate, and provides the sulfide ore flotation activator. The activating agent has the characteristics of good selectivity, high activating efficiency, environmental friendliness, low price, wide application range of pH value and the like. The problems mentioned in the background above are solved.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a sulfide ore activating agent comprises the following raw materials in parts by weight: 1-2 parts of basic copper carbonate and 2-4 parts of ammonium chloride.
Preferably, the feed comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 1 part of ammonium chloride.
Preferably, the feed comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 2 parts of ammonium chloride.
Preferably, the feed comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 3 parts of ammonium chloride.
Preferably, the feed comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 4 parts of ammonium chloride.
Preferably, the feed comprises the following raw materials in parts by weight: 2 parts of basic copper carbonate and 3 parts of ammonium chloride.
Preferably, the feed comprises the following raw materials in parts by weight: 1.5 parts of basic copper carbonate and 2.5 parts of ammonium chloride.
Another technical problem to be solved by the present invention is to provide a method for preparing a sulfide ore activator, comprising the following steps:
1) Weighing 1-2 parts of basic copper carbonate and 2-4 parts of ammonium chloride;
2) And (3) pouring the basic copper carbonate and the ammonium chloride selected in the step (1) into a stirrer to be uniformly mixed, and preparing the sulfide ore flotation activator.
3) The working personnel adjust the pH value of the liquid by adding sulfuric acid, lime or sodium carbonate into the ore pulp according to different mineral requirements, wherein the pH =6-11;
4) After the pH value of the ore pulp is adjusted, preparing a desulfurization activating agent into a solution with a certain proportion, and adding the solution into the raw ore pulp for activation, wherein the dosage of the agent is 50-300g/t;
5) Adding a collecting agent and a foaming agent into the activated ore pulp;
6) Mineral separation is accomplished by froth flotation.
(III) advantageous effects
Compared with the prior art, the invention provides a sulfide ore activator and a preparation method thereof, and the sulfide ore activator has the following beneficial effects:
1) The activator of the present invention is low in toxicity and no corrosionIt is also good. Moderately toxic bluestone, rat oral LD 50 :300mg/kg; basic cupric carbonate is low-toxic, rat oral LD 50 :1350mg/kg; ammonium chloride is also low-toxicity, and is orally administered to rats by LD 50 :1650mg/kg. The method realizes environmental protection, has no physical damage to operators and no corrosion to flotation equipment.
2) The copper and ammonia in the activator can form a complex in the aqueous solution, and the hydrophobicity of the surface of the sulphide ore is enhanced, so that the activator only selectively activates the sulphide ore, and the problems of low selectivity and serious mutual metal content of the conventional activator copper sulfate are solved. The activation effect on the sulphide ore is better than that of copper sulfate.
3) The activating agent can well regulate and control the potential of ore pulp, has strong adaptability to the pH value, can be used in weak acid, neutral and low alkaline environments, and has the pH value of 6-11 in the used ore pulp environment. The dosage of pH value regulators such as sulfuric acid, lime and the like can be reduced in production, and necessary guarantee is provided for the subsequent reasonable and effective recovery of other metal minerals.
4) The production cost is lower than that of copper sulfate, and higher benefits are brought to enterprises.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a sulfide ore activator comprises the following raw materials in parts by weight: 1-2 parts of basic copper carbonate and 2-4 parts of ammonium chloride.
The material comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 1 part of ammonium chloride.
The material comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 2 parts of ammonium chloride.
The material comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 3 parts of ammonium chloride.
The composite material comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 4 parts of ammonium chloride.
The material comprises the following raw materials in parts by weight: 2 parts of basic copper carbonate and 3 parts of ammonium chloride.
The material comprises the following raw materials in parts by weight: 1.5 parts of basic copper carbonate and 2.5 parts of ammonium chloride.
A preparation method of a sulfide ore activator comprises the following steps:
1) Weighing 1 part of basic copper carbonate and 1 part of ammonium chloride;
2) Pouring the basic copper carbonate and the ammonium chloride selected in the step 1 into a stirrer to be uniformly mixed to prepare a sulfide ore flotation activator;
3) The mineral to be selected contains elements such as tin, iron, sulfur and the like, wherein the pyrite interferes with the gravity separation and flotation of the cassiterite and needs to be removed through flotation. The mineral contains 1-1.5% of tin and about 4% of sulfur, the PH value of ore pulp is changed without adding a regulator after ore grinding, the PH value of the ore pulp is 7, an activating agent is added after stirring and size mixing, stirring is carried out for 5 minutes, then butyl xanthate and pine oil are added, stirring is carried out for 2 minutes, and air flotation is carried out.
4) By adopting the activating agent and the process, the pyrite in the cassiterite can be floated well, and the tin content in the pyrite is low.
The invention has the beneficial effects that:
1) The activator of the present invention is low in toxicity and non-corrosive. Moderately toxic copper sulfate, orally administered LD in rats 50 :300mg/kg; basic cupric carbonate is low-toxic, rat oral LD 50 :1350mg/kg; ammonium chloride is also of low toxicity, and is orally administered to rats LD 50 :1650mg/kg. The method realizes environmental protection, has no physical damage to operators and no corrosion to flotation equipment.
2) The activating effect of the activating agent of the invention on sulphide ore is better than that of copper sulfate.
3) The activating agent has strong pH value adaptability, can be used in weak acid, neutral and low alkaline environments, and the pH value of the used ore pulp environment is 6-11. The dosage of pH value regulators such as sulfuric acid, lime and the like can be reduced in production, and necessary guarantee is provided for reasonably and effectively recovering other metal minerals.
4) The production cost is lower than that of copper sulfate, and higher benefits are brought to enterprises.
The second embodiment:
a sulfide ore activating agent comprises the following raw materials in parts by weight: 1-2 parts of basic copper carbonate and 2-4 parts of ammonium chloride.
The material comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 1 part of ammonium chloride.
The material comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 2 parts of ammonium chloride.
The material comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 3 parts of ammonium chloride.
The material comprises the following raw materials in parts by weight: 1 part of basic copper carbonate and 4 parts of ammonium chloride.
The material comprises the following raw materials in parts by weight: 2 parts of basic copper carbonate and 3 parts of ammonium chloride.
The material comprises the following raw materials in parts by weight: 1.5 parts of basic copper carbonate and 2.5 parts of ammonium chloride.
A preparation method of a sulfide ore activator comprises the following steps:
1) Weighing 2 parts of basic copper carbonate and 3 parts of ammonium chloride;
2) Pouring the basic copper carbonate and the ammonium chloride selected in the step 1 into a stirrer to be uniformly mixed to prepare a sulfide ore flotation activator;
3) The ores to be selected contain valuable metal elements such as lead, zinc, sulfur, iron, silver and the like, wherein the ores contain about 5 percent of wurtzite and more than 0.4 percent of sphalerite, and the content of iron in the wurtzite reaches about 10 percent. Adding lime 2000g/t at the ore grinding stage, wherein the pH value of ore pulp is 8, stirring and mixing, adding an activating agent, stirring for 5 minutes, adding butyl xanthate and pine oil, stirring for 2 minutes, and charging air for flotation.
4) By adopting the activating agent, the iron sphalerite and the sphalerite can be well recovered through the process.
The invention has the beneficial effects that:
1) The activator of the present invention is low in toxicity and non-corrosive. Moderately toxic bluestone, rat oral LD 50 :300mg/kg; basic cupric carbonate is low-toxic, rat oral LD 50 :1350mg/kg; ammonium chloride is also of low toxicity, and is orally administered to rats LD 50 :1650mg/kg. The method realizes environmental protection, has no physical damage to operators and no corrosion to flotation equipment.
2) The activating effect of the activating agent of the invention on sulphide ore is better than that of copper sulfate.
3) The activating agent has strong pH value adaptability, can be used in weak acid, neutral and low alkaline environments, and the pH value of the used ore pulp environment is 6-11. The dosage of pH value regulators such as sulfuric acid, lime and the like can be reduced in production, and necessary guarantee is provided for reasonably and effectively recovering other metal minerals.
4) The production cost is lower than that of copper sulfate, and higher benefits are brought to enterprises.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The sulfide ore activating agent is characterized by comprising the following raw materials in parts by weight: 1-2 parts of basic copper carbonate and 2-4 parts of ammonium chloride.
2. The sulphide ore activator according to claim 1, comprising the following raw materials in parts by weight: 1 part of basic copper carbonate and 1 part of ammonium chloride.
3. The sulfide ore activator according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 1 part of basic copper carbonate and 2 parts of ammonium chloride.
4. The sulphide ore activator according to claim 1, comprising the following raw materials in parts by weight: 1 part of basic copper carbonate and 3 parts of ammonium chloride.
5. The sulphide ore activator according to claim 1, comprising the following raw materials in parts by weight: 1 part of basic copper carbonate and 4 parts of ammonium chloride.
6. The sulfide ore activator according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 2 parts of basic copper carbonate and 3 parts of ammonium chloride.
7. The sulphide ore activator according to claim 1, comprising the following raw materials in parts by weight: 1.5 parts of basic copper carbonate and 2.5 parts of ammonium chloride.
8. The sulfide ore activator of claim 1, wherein the basic copper carbonate is 98.0% pure and the ammonium chloride is 99.5% pure.
9. The preparation method of the sulfide ore activating agent is characterized by comprising the following steps of:
1) Weighing basic copper carbonate and ammonium chloride according to the weight part ratio of the claims 1-8;
2) Pouring the basic copper carbonate and the ammonium chloride selected in the step 1 into a stirrer to be uniformly mixed to prepare a sulfide ore flotation activator;
the use of any of the above activators in the flotation of sulphide ores; adding an activating agent into the sulfide ore pulp with the pH =6-11; adding the activating agent according to 50-300 g/ton ore.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210636504.7A CN115155821A (en) | 2022-06-07 | 2022-06-07 | Sulfide ore activating agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210636504.7A CN115155821A (en) | 2022-06-07 | 2022-06-07 | Sulfide ore activating agent and preparation method thereof |
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| CN115155821A true CN115155821A (en) | 2022-10-11 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2339455C1 (en) * | 2007-05-11 | 2008-11-27 | Институт Горного Дела Дальневосточного Отделения Российской Академии Наук (Статус Государственного Учреждения) | Method of extraction of valuable components from gold and sulphide ore |
| CN104148186A (en) * | 2014-07-03 | 2014-11-19 | 昆明理工大学 | Mineral processing process for multi-metal sulfide minerals containing secondary copper |
| CN105665152A (en) * | 2016-04-12 | 2016-06-15 | 兰州大学 | Activating agent for flotation of copper-nickel sulfide ores |
| CN108311292A (en) * | 2018-02-08 | 2018-07-24 | 高志 | A kind of sulfide flotation activator and preparation method thereof |
| CN112191369A (en) * | 2020-08-27 | 2021-01-08 | 中国恩菲工程技术有限公司 | Flotation method for copper-nickel sulfide ore |
| 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 |
-
2022
- 2022-06-07 CN CN202210636504.7A patent/CN115155821A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2339455C1 (en) * | 2007-05-11 | 2008-11-27 | Институт Горного Дела Дальневосточного Отделения Российской Академии Наук (Статус Государственного Учреждения) | Method of extraction of valuable components from gold and sulphide ore |
| CN104148186A (en) * | 2014-07-03 | 2014-11-19 | 昆明理工大学 | Mineral processing process for multi-metal sulfide minerals containing secondary copper |
| CN105665152A (en) * | 2016-04-12 | 2016-06-15 | 兰州大学 | Activating agent for flotation of copper-nickel sulfide ores |
| CN108311292A (en) * | 2018-02-08 | 2018-07-24 | 高志 | A kind of sulfide flotation activator and preparation method thereof |
| CN112191369A (en) * | 2020-08-27 | 2021-01-08 | 中国恩菲工程技术有限公司 | Flotation method for copper-nickel sulfide ore |
| 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 |
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