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The role of collectors:
Change the hydrophobicity of the mineral surface, so that the minerals to float adhere to the bubble surface and float up, so as to achieve the purpose of mineral sorting.
Mechanism of action of collectors:
The role of collector and mineral surface is divided into: physical adsorption, chemical adsorption, and surface chemical reaction. There are various opinions on the specific way, the main of which is:
Physical adsorption of non-polar molecules, electric double-layer adsorption, exchange adsorption of ions of the same name, molecular adsorption, chemical adsorption, adsorption of collector reaction products on the surface of minerals or slurry, and surface chemical reactions.
Classification of collectors:
According to the nature of the collector and the composition and structure of the polar group of the mineral action, the collector is divided into non-polar oil collector and heteropolar ionic collector, which is divided into anionic, cationic and amphoteric collectors, non-ionic ester collectors, and complexing (or chelating) dosage collectors. Non-polar hydrocarbon oil collectors were first used for mineral flotation, as early as 400 AD, until 1898, when whole oil flotation was used in industry. 1925 In 1926, xante and black medicine were used in the flotation of sulfide ores.
In the fifties, China produced liquid ethyl xanthate, solid ethyl xanthate, liquid butyl xanthate and white yante, solid butyl xanthate and No. 25 black medicine, refined soybean oil fatty acids, amyl xanthate and mixed base xanthate, No. 31 black medicine, etc. In the 60s, cationic collectors - mixed aliphatic amines were produced, sodium hydroxamate and new ester collectors were produced on a trial basis. So far, China has been able to produce xanthate, black medicine, sulfur nitrogen No. 9, thiourethane, mixed fatty acids, mixed toluene-arsonic acid, hydroxamic acid, sodium hydroxamate, soybean oil fatty acid sulfated soap, paraffin oxide soap, oleic acid, sodium oleate, dodecamine and other collectors.
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The function of the trapping agent is to maximize the efficiency of useful minerals and improve the flotation rate.
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What does the flotation collector do.
What is the role of flotation collector, flotation machine can make great achievements in the field of mineral processing, mainly relying on the special role of flotation agent. Flotation reagents can be basically divided into five categories: 1. Collectors.
Acting with the mineral surface, it adheres to the mineral surface to enhance the hydrophobicity of the mineral surface, which is conducive to the ore particles to be collected on the bubbles. 2. Foaming agent. During flotation, the foam is the medium through which the ore particles simply float.
3. Inhibitors. It is a kind of medicine that reduces the floatability of minerals. It can form a hydrophilic film on the surface of the ore particles and form a colloidal adsorption film, thereby hindering the interaction between the collector and the mineral surface.
At the same time, the inhibitor can also dissolve the adsorbed collector or the active film that dissolves the mineral to help the collector act from the mineral surface. 4. Activator. It is an agent that eliminates the inhibitory effect, promotes floatability, and makes the surface of the mineral collapse trouser easy to interact with the collector.
In the current production practice, some minerals can not directly adsorb collectors, and activators are often added to change the surface properties of minerals, so that they are conducive to the adsorption of collectors. 5. Media conditioner. Its main function is to adjust the pH value of the slurry (pH value, representing the pH), adjust the role of other agents, eliminate the ionic influence harmful to flotation, and adjust the dispersion and agglomeration of the slurry.
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Summary. Flotation agent refers to the use of various agents to adjust the physical and chemical properties of the selected minerals and flotation medium during flotation, so as to expand the difference in hydrophilicity and hydrophobicity between gold minerals or gold-bearing minerals and gangue, so that they can be better sorted and achieve the purpose of increasing the gold rate.
What does the flotation collector do.
What is the role of TZB-2 collector?
Flotation agent refers to the use of various agents to adjust the physical and chemical properties of the selected minerals and lead mu flotation medium during flotation, so as to expand the differential foci of hydrophilicity and hydrophobicity between Jinhuai Biansen minerals or gold-bearing minerals and gangue stones, so as to make it better sorted and achieve the purpose of increasing the gold rate.
The functions of collectors on mineral surfaces include physical adsorption, chemical adsorption and surface chemical reactions. The adsorption of collectors is closely related to mineral flotation behavior. Within a certain range of collector concentration, with the increase of agent concentration, the adsorption capacity increases, and the flotation rate increases significantly. After the flushing concentration reaches the equivalent value, the ** rate decreases with the increase of concentration and adsorption capacity. When the concentration of harvesting agent is too high, the adsorption capacity can continue to increase, but the flotation rate no longer increases, or even decreases.
Therefore, it is necessary to correctly grasp the dosage of collector in the process of selecting the smart one to obtain the best.
Can this medicine be mixed?
How many kilograms should I dose?
It can be mixed, it is recommended that you mix and use it now, and it is safer to do a second dilution. Safety Tips: It is recommended that you follow the product instructions to use the panicle cover for safer use. Because pesticides suffocate the production process, content, and hidden ingredients of the enterprise, please go to the local distributor to seek the ideal insecticide and better solution according to the condition.
Can it be combined with butadiene xanthate, ethyl xanthate, and amyl xanthamine?
Ask? The so-called xanthate, that is, sodium xanthate. It is mainly used as a collector for the flotation of non-ferrous metal ore and rare hail metal ore, and has a strong adsorption effect on pyrite and gold ore.
When it is added to the liquid, the ore particles are adsorbed into larger particles and a large amount of air is attached, so that the whole body floats to the surface of the water and is extracted.
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Flotation reagents are the main factor regulating the flotation of minerals. The dosage is insufficient, the purpose of adjustment cannot be achieved, and the mineral is difficult to be sorted; However, excessive dosage can also cause reactions, which not only reduce the quality of the concentrate, lose selectivity, but also cause waste. In fact, only a small amount of collector can be added to flotation to form a hydrophobic film on the surface of the mineral, and the amount of agent used to inhibit and activate a mineral is also very small.
For this reason, special emphasis should be placed on "moderation" and "selectivity" in practical use. For different ores, due to different properties, the fluctuation range of the dosage of chemicals is also different. Even for the same type of ore, due to the specific conditions of the formation of ore deposits, the content of useful minerals and gangue will be different, and the amount of chemicals required for flotation is also different
The dosage of collector is 20 1500g t. Generally speaking, the dosage of xanthate collector is small, about tens of grams to more than 100 grams per t of ore, and the dosage of fatty acid collector is larger, about a few hundred grams to more than one kilogram per t of ore; The dosage of foaming agent is 20 2000g t; The dosage of activator is 200 1000g t; The combined dosage of inhibitors is 100 200 g t; The medium ridge shelter macro quality adjuster is 500 3000g t. When sorting specific ores, the appropriate dosage range should be selected according to the test results.
In the process of practical application, as long as the material composition of the ore remains unchanged, the dosage of the agent cannot be arbitrarily changed. Precautions in actual production.
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Summary. Jing oil collectors are divided into three categories: fatty jing, lipid ring jing and aromatic jing.
Because they are insoluble in water and cannot be dissociated into ions, they are also called non-polar collectors and neutral oil collectors. This type of collector is mostly used in kerosene, transformer oil, diesel and fuel oil. This is followed by tar, heavy oil, medium oil, etc.
Non-polar minerals with good natural floatability, such as graphite, volatile ore, kerosene, etc., can be used as collectors alone, and are commonly used to improve the separation index when flotating gold. In the flotation of sulfide ore and oxide ore, it can be mixed with other collectors, which can not only improve the flotation index, but also reduce the amount of chemicals.
What collector works well for flotation cobalt?
There are many types of trappers.
Oxide ore collector is generally composed of polar and non-polar groups, the polar group contains atoms such as oxygen and chlorine, and the non-polar group has a large molecular weight.
Anionic collectors are: aliphatic acid and its soaps, oxyparaffin, tal oil, etc.
Collectors that are generally available.
Jing oil collectors are divided into three categories: fatty jing, lipid ring jing and aromatic jing. Because they are insoluble in water and cannot be dissociated into ions, they are also called non-polar collectors and neutral oil collectors. This type of collector is mostly used in kerosene, transformer oil, diesel and fuel oil.
This is followed by tar, heavy oil, medium oil, etc. Non-polar minerals with good natural floatability of the source, such as graphite, volatile drilling, kerosene, etc., can be used as collectors alone, and are commonly used to improve the separation index when flotating gold. In the flotation and separation of sulfide ore and oxide ore, it can be mixed with other collectors of filissure front, which can not only improve the flotation index, but also reduce the amount of agent.
Oxidized paraffin soap.
This kind of collector can be purchased except for tal oil, which is a little less on the market. Paraffin oxide soap is available.
Yes, there are many common trappers that are easy to buy.
In general, flotation can only be carried out as long as there is cobalt sulfide.
Hope mine is helpful to you, hope.
Have a great day.
Thanks for the guidance!
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Dear, hello, I am glad to answer for you, the flotation machine is used in the preparation of lead-zinc ore and the collector is the choice of the flotation machine when the flotation machine flotates the lead-zinc sulfide ore: there are many beneficiation agents can be used for the flotation of lead-zinc sulfide ore, there are chemical plants specializing in the production of beneficiation agents, they produce and develop a variety of beneficiation agents. The commonly used collectors for the beneficiation of lead sulfide and zinc ore include butyl xanthate, ethyl xanthate, ethyl sulfide nitrogen and butylammonium black medicine.
The regulators are lime, sulfuric acid, zinc sulfate, copper sulfate, sodium sulfide and sodium thiosulfate. The choice of flotation reagent regime depends mainly on the nature of the ore, the principles used and the product scheme produced. Of course, factors such as environmental protection and economic costs must also be considered, and ultimately need to be determined through experiments.
Lead and zinc flotation collectors, commonly used collectors are: xanthate and black medicine. Xanthate includes xanthate, xanthate, etc.
Sulfur and nitrogen, such as ethyl sulfide, have a stronger harvesting capacity than xanthate.
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