After the coal is mined, it is sorted according to the different particle size, and then separated in the water according to the difference in the gravity of the coal and impurities in the water medium. The coal floats in the upper layer, the impurities sink to the bottom, and the treated coal is sorted to obtain the final product.

 

In this process, pulverized refined coal is produced, which requires further processing for recycling. This process is usually completed by the flotation method, adding flotation agents to improve the separation efficiency of coal from impurities. The refined coal floats and the tail coal settles. The refined coal is then recovered by sedimentation, filtration or centrifugation. Flocculants are used in the sedimentation process to facilitate solid-liquid separation. It is then sent to a concentrator where the clean water is recovered and recycled by the overflow of the concentrator. Powdered refined coal is filtered and centrifugally recovered. The flocculant is added again during filtration and centrifugation to improve the efficiency of the separation process.

 

The following models are recommended for coal washing: non-ionic, low cathode, 1815, 926, 1825, 1930.

The sand washing plant produces a large amount of sewage in daily production, and the sand flushing wastewater contains a large amount of sediment, impurities and suspended solids, and the turbidity is relatively high. Simple natural settlement is difficult to meet the needs of daily production, but untreated direct discharge will cause environmental pollution. Polyacrylamide has a long molecular chain structure, which can react quickly with impurities and suspended solids in wastewater to form flocs and rapid settlement, the supernatant of sand washing wastewater after flocculation and settlement is clear and transparent, and can be recycled and recycled, and the precipitated flocs are introduced into the filter press through the pipeline to form a mud cake with very low water content after filtration, which can be backfilled.

 

The following models are recommended for sand washing: 926, 1825, 2130.

In today's gold and silver washing process, carbon slurry or carbon filtration is generally used. Gold and silver are recovered with activated carbon dissolved in cyanide. Before filtration, the ore is crushed and screened, and the selected minerals enter the ball mill to add water and lime. The addition of flocculant to each concentrator promotes rapid settling of solids, and the underflow is filtered through a series of filter tanks. This gives gold and silver enough time to dissolve in cyanide.

 

The sedimentation additives recommended to be added to the concentrator before the filter tank are: non-ionic, low cathode, 1815, 926, 1825, 1930.

Zinc is usually found in sulfide form and sometimes as oxides and silicates. For different forms of existence, the separation and processing of zinc requires different technologies.

 

In the sorting process of zinc sulfide: the mineral is oxidized to zinc oxide by calcination. Next, the oxide is leached with sulfuric acid. A neutral filtrate with a pH of around 5 and an acidic filtrate with a pH of 2.5 dissolve all the concentrate in sulfuric acid. Some concentrators add a heat filtration concentration process to further improve recovery. Reverse reflux sedimentation systems are typically used for overflow purification with neutral concentration.

 

Recommended sedimentation agents for neutral filtrates: 1815, 926, 1825.

 

Recommended sedimentation agents for acidic filtrates: non-ionic, low yin, 1815.

Copper-containing minerals can be separated from waste raw materials or gangue by crushing and crushing, which is crushed again and further crushed with a ball mill or mixer mill. In this way, the final mineral particle size is usually less than 100um.

 

In the final crushing process, a collector is added to the slurry. This collector adsorbs copper sulfides and makes its particles hydrophobic. These copper mines will be enriched and recovered by a flotation process. In flotation, the air is passed into the slurry. A foaming agent will also be added to create bubbles and to firmly attach the copper particles to the bubbles at the top of the slurry. The slurry or tailings coming out of the flotation tank will enter the concentration tank for further settlement. A flocculant is added at this point to promote rapid settlement and clear overflow. The clarifying overflow will be used as recycled water. The remaining concentrated tailings are fed into a centrifuge for centrifugal dewatering, at which point the flocculant is added as a centrifugal additive.

 

Bubbles (concentrate) filled with copper ore are mechanically separated from the overflow. It is then concentrated and dehydrated. At this time, flocculants are used to improve the efficiency of sedimentation and filtration. The resulting concentrate or cake contains nearly 25 to 35 percent copper. This will be recovered by pyrometallurgy.

 

Settlement recommendations for concentrate and flotation tailings use: non-ionic, low yin, 1815, 1825.

 

Centrifugal additives for concentrated tailings and concentrated concentrates: 1815, 926, 1825.

The beneficiation methods of phosphate ore beneficiation mainly include the following: direct flotation, reverse flotation, reverse positive (positive and negative) flotation, double reverse flotation, scrubbing and sludge, roasting and digestion process, chemical mineral processing, heavy media sorting and so on. In the process of phosphate ore production, a large number of mineral sludge, waste rock, wastewater, etc. are produced, and various flocculants produced by our company can be selected in the wastewater treatment process, and the use of these flocculants can speed up the treatment of wastewater and improve the recycling rate of wastewater.

 

Recommended products: Low Yin, 1815, 926, 1825.