WELLDONE CHEMICAL
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Polyacrylamide Applications In The Field Of Minerals
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Polyacrylamide Applications In The Field Of Minerals

Product Form:White powder

Molecular weight:6 million-20 million

Degree of Hydrolysis:40-70%

Dissolution tome:<1.5h

Solid content:>88%

Charge type:Anion


Polyacrylamide is used in coal,gold,silver,copper,iron,lead and zinc,aluminum,uranium,nickel,phosphorus,potassium,manganese,salt and other mineral mining and processing and tailings treatment process,tha main purpose is to improve the efficiency and recovery rate of solid-liquid separation;Among them,in the coal industry,coal slurry and solid-liquid separation during sedimentation and clarification of tailings,tailings filtration and centrifugation;In gold or silver or copper ore,a settling agent added to the concentrator before the filter tank;In mineral liquids with low pH values(less than 4),such as lead and zinc mines, used for sedimentation additives, etc.; In aluminum ore, when the sodium aluminate solution and red mud are separated, an additive is added during the washing process to promote the rapid settlement of red mud particles and obtain a clear overflow that meets the requirements.


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Description

Product Form:White powder

Molecular weight:6 million-20 million

Degree of Hydrolysis:40-70%

Dissolution tome:<1.5h

Solid content:>88%

Charge type:Anion


Polyacrylamide is used in coal,gold,silver,copper,iron,lead and zinc,aluminum,uranium,nickel,phosphorus,potassium,manganese,salt and other mineral mining and processing and tailings treatment process,tha main purpose is to improve the efficiency and recovery rate of solid-liquid separation;Among them,in the coal industry,coal slurry and solid-liquid separation during sedimentation and clarification of tailings,tailings filtration and centrifugation;In gold or silver or copper ore,a settling agent added to the concentrator before the filter tank;In mineral liquids with low pH values(less than 4),such as lead and zinc mines, used for sedimentation additives, etc.; In aluminum ore, when the sodium aluminate solution and red mud are separated, an additive is added during the washing process to promote the rapid settlement of red mud particles and obtain a clear overflow that meets the requirements.



Alumina Ore


In the alumina production process of Bayer's method,sintering method or combination method for the treatment of duraluminite monohydrate,bauxite trihydrate or mixed bauxite,the mineral is first crushed and crushed to less than 1mm.Concentrated sodium hydroxide is then added and subjected to high temperature and pressure.Aluminum dissolves in highly corrosive liquids,while impurities other than soluble silicon are not dissolved.After the above process,the gravel is removed along with the slurry that has undergone primary concentration and precipitation.Anionic polyacrylamide flocculants were added to the primary concentration tank.This is a very important process for clarifying overflow.The bottom flow of the thickening tank,the red mud,will be treated by a reverse reflux settling process.In this process,the aluminum in the liquid is recovered through a series of washing sedimentation tanks.At this point the anionic polyacrylamide flocculant is used again to promote rapid sedimentation and obtain a clear overflow that meets the requirements.
The aluminium-rich primary concentration tank overflows through filtration,cooling(48 hours),and filled with aluminum hydrate to promote the precipitation of aluminum trihydrate.Aluminum is calcined by filtration and washing.
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