Recrystallization approach: Liquify industrial Tripolyphosphate of Sodium in water at 60-70 ° C, prepare an option of 17% -22%, as well as filter to get rid of insoluble impurities; after that vacuum focus, cooling crystallization, separation, as well as drying to get the item. The two-step thermal phosphoric acid technique utilizes edible soda ash to reduce the effects of a 50% to 60% option of food-grade thermal phosphoric acid in the neutralization storage tank. The neutralized fluid gets in the intermediate tank as well as is pumped to the spray drying out tower for spray drying out. The powder is sent out to a rotating polymerization heater, heated up to 540-580 ° C for dehydration polymerization, and also degenerated into powder after cooling in the air. Add ethanol to the liquid option of anhydrous, as well as hexahydrate can be precipitated. 5Na2CO3 +6 H3PO4 → 4Na2HPO4 +2 NaH2PO4 +5 WATER +5 CARBON DIOXIDE ↑ 4Na2HPO4 +2 NaH2PO4 → 2Na5P3O10 +4 H2O. Thermal phosphoric acid two-step approach Placed the phosphoric acid (55% ~ 60%) remedy into the stainless-steel neutralization container after metering, warm up as well as start the mixer, slowly include soda ash under mixing to carry out the neutralization reaction, and also keep 2 in the neutralization container. The ratio of particles of monobasic salt phosphate to 1 molecule of monobasic sodium phosphate. The reduced the effects of blended fluid enters the spray drying out tower through the high-level tank for drying, and also the dried orthophosphate completely dry material is released from the bottom of the tower and sent to the rotating polymerization heating system. Reuse. The dry orthophosphate is polymerized in a polymerization heating system at a temperature level of 350-450 ° C to generate Tripolyphosphate of Sodium, which is cooled and pulverized to get a completed product of Tripolyphosphate of Salt. 6H3PO4 +5 Na2CO3 → 4Na2HPO4 +2 NaH2PO4 +5 WATER +5 CARBON DIOXIDE ↑ 4Na2HPO4 +2 NaH2PO4 → 2Na5P3O10 +4 water wet phosphoric acid one-step technique reacts phosphorus mineral powder with sulfuric acid to get removed phosphoric acid, initial eliminate the fluorine silicon in the defluorination tank with soda ash acid, and afterwards make use of barium carbonate to eliminate sulfate in the desulfurization tank to decrease the sodium sulfate material in phosphoric acid. Then counteract with soda ash. A big quantity of contaminations such as iron and also aluminum are removed by filtration. After great change and filtering, the acquired option consisting of a particular percentage of disodium hydrogen phosphate as well as salt dihydrogen phosphate is focused in an evaporator to satisfy the needs of spray polymerization. The slurry is splashed right into a rotating polymerization furnace, dried and polymerized by hot air spraying. After cooling down, squashing as well as sieving, the completed product of Tripolyphosphate of Salt is gotten. Its Ca5F( PO4) 3 +5 H2SO4 +10 H2O → 3H3PO4 +5 CaSO4? 2H2O+ HF6H3PO4 +5 Na2CO3 → 4Na2HPO4 +2 NaH2PO4 +5 WATER +5 CARBON DIOXIDE ↑ 4Na2HPO4 +2 NaH2PO4 → 2Na5P3O10 +4 WATER.