Alkaline binder for refractories - sodium hexametaphosphate

The development of high temperature industry has led to the development of refractory industry. Refractories are more widely distributed in metallurgical and building materials industries. Iron and steel industry is the largest consumption industry of refractories, accounting for about 70% of the total consumption of refractory products, which directly determines the market capacity of refractories. Some advances in steelmaking technology have led to the rapid development of alkaline amorphous refractories. What role does sodium hexametaphosphate play in alkaline amorphous refractories?

What is alkaline refractory?

Alkaline refractories generally refer to refractories with magnesium oxide or magnesium oxide and calcium oxide as the main components.

These refractories have high refractoriness and strong resistance to alkaline slag. Alkaline refractories are mainly used in alkaline steelmaking furnaces and non-ferrous metals smelting furnaces, which are often used in cement industry. Its main products are magnesia, magnesia chromium, magnesia olive, magnesia aluminium, dolomite and lime refractories. Magnesium, dolomitic and limestone are strongly alkaline, while chromium-magnesia and magnesia-chromium, forsterite and spinel are weakly alkaline.

For example, when using magnesium material as refractory aggregate and powder, because the reaction between phosphoric acid and aluminium phosphate solution and magnesia material is intense, the mixture is quick-setting, and there is no construction time, so sodium hexametaphosphate produced by yucai chemical Industry will be used as binder, requiring that the main content of sodium hexametaphosphate produced by Yucai Chemical Industry should reach 68%, the impurity content should be low, and some by-products or picking. Wet process production may not meet the follow-up requirements.

Sodium hexametaphosphate produced by Yucai Chemical Industry has good thermal shock stability, high compressive strength, strong slag corrosion resistance and impact resistance, high load softening temperature and chemical stability. It is widely used in alkaline refractory binders.

 Yucai Phosphate Chemical Plant specializes in producing: sodium hexametaphosphate, sodium pyrophosphate, sodium tripolyphosphate, disodium hydrogen phosphate, industrial phosphoric acid, trisodium phosphate, aluminium dihydrogen phosphate, solid aluminium dihydrogen phosphate, liquid aluminium dihydrogen phosphate, sodium dihydrogen phosphate and other phosphate products after more than 30 years of continuous pursuit and development, relying on skilled chemical technology and product development, equipment updating and many other phosphate products. Colleges and universities have established a good cooperative and sharing relationship, playing a brand (Yucai Phosphate) in the chemical industry!