What is copper sulfate used for in coal mines, and what is copper sulfate used for

Copper sulfate for coal mines can effectively remove algae from coal mine water treatment structures.

With the development of the coal industry, the water quality requirements of coal mines for industrial and domestic water are becoming more and more stringent, so further improving the water quality after mine water treatment has become an inevitable trend of coal mine water treatment. At present, some algae are often bred and propagated in the sedimentation tank of many coal mine water treatment systems in China, and when the algae reaches a certain amount, it can block part of the inclined pipe, cause the effective area of the inclined pipe to be reduced, and the upwelling velocity in some areas is too fast, and the effluent water quality after mine water treatment is affected; At the same time, it will also make the water smelly, change color, and produce toxic substances that are not good for human health. At present, the algae in the coal mine water treatment system are mainly removed by manual salvage or the method of stopping the pond for drying, but the algae removal method is not complete by manual salvage and the method of stopping the pond for drying, and the algae will soon breed and multiply again.

Copper sulphate is an activator.

The role of the activator is to create a thin film on the surface of the mineral that facilitates the action of the collector. It is generally believed to have the following effects:

1) Dissolve mineral surface inhibitory film.

For example, a thin film of iron hydroxide on the surface of pyrite. It is an inhibitory film that hinders the action of collector, and after treatment with sulfuric acid as an activator, it can dissolve the inhibitory iron hydroxide film, which is conducive to the capture of pyrite by xanthate.

2) As a result of the chemical reaction of exchange, adsorption or displacement, an insoluble activated film is formed on the surface of the mineral.

For example, the activation of uninhibited sphalerite with copper sulfate is due to the displacement reaction between Cu2+ in copper sulfate and Zn2+ in sphalerite lattice

zns]zns +cuso4 = zns]cus +znso4

Sphalerite copper sulfide film.

As a result, a thin film of copper sulfide is formed on the surface of sphalerite, which has similar floatability to copper blue cus.

Another example is that sodium sulfide is commonly used as the activator of copper oxide and limeite, so that a sulfide film is formed on the surface of the oxide ore, and the floatability of the sulfide film is similar to that of sulfide ore. Sulfidation reaction of sodium sulfide on malachite:

cuco3 cu（oh）]cuco3 cu（oh）2 +2na2s = cuco3 cu（oh）2]2cus +2naoh+na2co3

Sulfidation reaction of sodium sulfide to chlaite:

pbco3]pbco3 + na2s = pbco3]pbs +na2co3

3) Eliminate the harmful effects of inhibitory ions in the slurry.

For example, Cu2+ of copper sulfate will precipitate or complex the CN- and SO3 ions that play an inhibiting role in the slurry, and then form an activated film on the surface of the mineral.

It should be noted that in many cases activators interact with collectors to form poorly soluble compounds. This not only reduces the activation effect of the activator, but also consumes the collector unhelpfully. Therefore, when adding the agent, the activator should be added first, and then the collector should be added, and the amount of activator should be strictly controlled.

What is copper sulphate used for? As follows:

It is used as a source analysis reagent, such as Filin reagent for the identification of reducing sugars and diurea reagent for the identification of proteins in biology, but it is usually prepared and used off-the-shelf;

used as food-grade chelating agent and fining agent, used in preserved egg and wine production process;

Industrial sector. used in the manufacture of other copper salts such as cuprous chloride, copper chloride, copper pyrophosphate, cuprous oxide, copper acetate, copper carbonate, copper monoazo dyes such as active brilliant blue, active violet such as spike, etc.; The coating industry is used to produce antifouling paint for ship bottoms; In the electroplating industry, it is used as the main salt of all-bright acid copper plating and copper ion additives;

The printing and dyeing industry is used as an oxidizer for mordant Zen acorn and fine dyed cloth; It is used in the organic industry as a catalyst for the synthesis of fragrance and dye intermediates, and as a polymerization inhibitor for methyl methacrylate. Anhydrous salts are used to catalyze transacetal reactions. Anhydrous salts react with potassium permanganate to form an oxidizing agent for the conversion of primary alcohols.

In the agricultural field, Bordeaux liquid is formed after mixing with lime water, which is used as a fungicide to control fungi on crops and prevent fruit rotting; Since copper ions are toxic to fish, the dosage must be strictly controlled. Aquaculture is also used as the main raw material for feed additives trace element copper;

Dehydrating agent for alcohols and organic compounds. Gas desiccant.

For chemistry education, copper sulfate is often included in children's chemistry laboratory reagents for crystal formation tests and copper plating experiments. Because of its toxicity, it is not recommended for young children. Copper sulphate can also be used to demonstrate the process of crystalline water loss weathering and obtaining crystallized water.

In the junior high school laboratory examination, the law of conservation of mass was verified by the displacement reaction between copper sulfate and iron. Sulfuric acid can also be prepared.

It is used as an emetic in the medical field.

The copper sulfate produced by Chuandong Chemical has high purity, less impurities and more stable quality.

Copper sulfate is also an effective anti-shark medicine!

If you want to talk about anti-shark medicine, you have to start with World War II. In order to occupy the whole world in a vain attempt, the fascists burned the flames of war to the two continents of Europe and Asia, and the naval battles in the Atlantic and Pacific oceans were also unprecedentedly cruel. In the naval battle, a large number of ships were sunk by the other side, and the surviving commanders, fighters, and soldiers on board abandoned their ships and fled for their lives.

But it is still difficult for these outlaws to escape the pursuit of death, because there are still many hungry sharks waiting for them in the ocean. In order to protect its officers and men from being besieged and swallowed up by sharks, the United States has called on people of insight throughout the country to study medicines to prevent early sharks, and many scientists and people from all walks of life have responded and invested in experiments to prevent sharks with medicines.

At that time, there was a famous literary master named Hemingway, who also circled the sea surface in the sea area he was familiar with, and started an experiment to prevent the shark. He staggered baits containing and non-copper sulphate on the surface of the sea to see how the sharks reacted.

Two days later, when he sailed to inspect the bait, he was surprised to find that the sharks had eaten all the baits that did not contain copper sulphate, and that the lures containing copper sulphate had not changed in any way, and Hemingway jumped for joy, and he was finally able to use a simple and common salt, copper sulphate, to prevent sharks.

Soon, U.S. Navy officers and sailors were soon equipped with the copper sulphate"Amulet"to prevent sharks.

To put it simply, copper sulphate can react with lime milk and be used in agriculture to prepare the pesticide Bordeaux liquid.