Method of producing potassium ammonium sulfate compound fertilizer using potassium containing rock
A technology of ammonium potassium sulfate and potassium rock, which is applied in the direction of potash fertilizer, ammonium salt fertilizer, nitrogen fertilizer, etc., can solve the problems of inability to produce high value-added products, high price of additives, and difficult comprehensive utilization of by-products, and achieve low cost and high equipment efficiency The requirements are low, and the effect of solving the pollution environment
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0019] Mix 100 mesh potassium feldspar with 98% concentrated sulfuric acid and 20% fluosilicic acid in the ratio of mass:volume:volume 1:0.2:1 in the pre-mixing tank and flow to the reactor by itself, under stirring conditions Heating to 110°C for reaction, the reaction time is 1.5 hours, adding 2 times the amount of water to boil and dissolve the product generated after the reaction, adding calcium hydroxide and calcium sulfate mixture with 20% potassium feldspar weight, calcium hydroxide and calcium sulfate in the mixture The weight ratio of calcium sulfate is 1:1, the solution is heated and boiled, and then put into a centrifuge for separation from the bottom to obtain filtrate and filter residue. The separated filtrate is sent to the neutralization tank, and the solution is neutralized with ammonia water to neutrality. The neutralized slurry is separated from solid and liquid by a filter press, and the liquid phase flows into the potassium ammonium sulfate mother liquor sto...
Embodiment 2
[0021] Mix 130 mesh potassium feldspar with 98% concentrated sulfuric acid and 30% fluosilicic acid in the ratio of mass:volume:volume 1:0.3:3 in the pre-mixing tank and flow to the reactor by itself, under stirring conditions Heating to 130°C for reaction, the reaction time is 3 hours, adding 4 times the amount of water to the reacted slurry, boiling and dissolving, adding calcium hydroxide and calcium sulfate mixture with 40% potassium feldspar weight, calcium hydroxide and calcium sulfate in the mixture The weight ratio of calcium sulfate is 1:1, the solution is heated and boiled, and then transferred to a centrifuge for separation of impurities to obtain filtrate and filter residue. The separated filtrate is sent to the neutralization tank, and the solution is neutralized with ammonia water to neutrality. The neutralized slurry is separated from solid and liquid by a filter press, and the liquid phase flows into the potassium ammonium sulfate mother liquor storage tank, and...
Embodiment 3
[0023] Mix 160 mesh potassium feldspar with 98% concentrated sulfuric acid and 35% fluosilicic acid in the ratio of mass: volume: volume 1:0.5:5 in the pre-mixing tank and then flow into the reactor by itself. Heating to 150°C for reaction, the reaction time is 4 hours, adding 5 times the amount of water to the reacted slurry, boiling and dissolving, adding calcium hydroxide and calcium sulfate mixture with 60% potassium feldspar weight, calcium hydroxide and calcium sulfate in the mixture The weight ratio of calcium sulfate is 1:1, the solution is heated and boiled, and then transferred to a centrifuge for separation of impurities to obtain filtrate and filter residue. The separated filtrate is sent to the neutralization tank, and the solution is neutralized with ammonia water to neutrality. The neutralized slurry is separated from solid and liquid by a filter press, and the liquid phase flows into the potassium ammonium sulfate mother liquor storage tank, and passes through t...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More