Application of sodium hexametaphosphate in mineral processing

 The whole phosphating industry market is changing and developing. Phosphating products are also improving. Sodium hexametaphosphate is a flotation reagent in mineral processing. Flotation is a process of separating mineral particles by using the difference of physical and chemical properties of mineral surfaces. Formerly known as floating beneficiation, flotation is the most widely used beneficiation method.

The ore mined from underground is called crude ore, which is generally composed of useful minerals and gangue. The grade of the crude ore is generally relatively low and cannot be directly smelted. It needs to be processed first to remove most gangue and harmful components so as to enrich the useful minerals into concentrate for further use. Thisprocess of processing raw ore is called beneficiation.

According to different beneficiation methods, it can be divided into magnetic separation, flotation, gravity separation, etc.

Almost all ores can be separated by flotation. Such as gold, silver, galena, sphalerite, chalcopyrite, chalcocite, molybdenite, pentlandite and other " sulfide minerals", malachite, galena, smithsonite, heteropolar ore, hematite, cassiterite, wolframite, ilmenite, beryl, spodumene, rare earth metal minerals, uranium and other oxidized minerals. Separation of nonmetallic minerals such as graphite, diamond, Shi Ying, mica, feldspar and silicate minerals, nonmetallic salt minerals such as fluorite, apatite, barite and soluble salt minerals such as potassium salt and rock salt.

As sodium hexametaphosphate is a linear compound with a chain length of about 20 - 100 PO-3 units, when it is adsorbed on the mineral surface, it will intensify the steric effects between particles.

Sodium hexametaphosphate mainly acts as a dispersant. Prevent fine ore particles from aggregating to make them in a monomer dispersion state, with the opposite effect to flocculant. The electronegativity of the pulp surface is enhanced, so that the repulsive force between the pulp particles is obviously improved; the polymeric macromolecule is provided with a large water film, so that the hydration effect of the pulp particles is effectively enhanced; and sodium hexametaphosphate is complexed with calcium and magnesium ions in the pulp to generate a water-soluble complex.

Zhengzhou Yucai Phosphate Chemical Factory specializes in the production of phosphate series products such as sodium hexametaphosphate, sodium pyrophosphate, sodium tripolyphosphate, disodium hydrogen phosphate, industrial phosphoric acid, trisodium phosphate, aluminum dihydrogen phosphate, solid aluminum dihydrogen phosphate, liquid aluminum dihydrogen phosphate, sodium dihydrogen phosphate, etc. After more than 30 years of continuous pursuit and development, it has established a good cooperative and sharing relationship with many universities and colleges through skilled chemical technology and product development, equipment renewal, and has established a brand of ( Yucai Phosphate ) in the chemical industry!