Production method for zinc sulfate
A production method, the technology of zinc sulfate, applied in the chemical industry, can solve the problems of polluting the environment, easily generating waste, waste, etc.
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Embodiment 1
[0021] A production method of zinc sulfate, comprising the steps of:
[0022] (1) Grind and pulverize the zinc concentrate into 50 mesh powder, and then put it into a sealed container;
[0023] (2) Add ferrous sulfate whose mass fraction is zinc concentrate powder 1wt% to the container of step (1) as a catalyst, add sulfuric acid solution at the same time, the concentration of sulfuric acid solution is 15wt%, the mass fraction of sulfuric acid solution and zinc concentrate powder The ratio is 108:1;
[0024] (3) Turn on the electric stirrer and heat to 80°C for 3 hours;
[0025] (5) Filtration, cooling, suction filtration, obtained leaching solution and leaching residue, the leaching residue is extracted with tetrafluoroethylene to recover by-product sulfur;
[0026] (6) Solvent extraction is used to separate the leaching solution. The extraction solvent is P507 sulfonated kerosene system. The leaching solution is acidified, concentrated, evaporated, crystallized, centrifuge...
Embodiment 2
[0028] A production method of zinc sulfate, comprising the steps of:
[0029] (1) Grinding and pulverizing the zinc concentrate into 80-mesh powder, and then adding it into a sealed container;
[0030] (2) Add ferrous sulfate with a mass fraction of 3wt% of zinc concentrate powder to the container of step (1) as a catalyst, and add sulfuric acid solution at the same time. The concentration of sulfuric acid solution is 17wt%. The mass fraction of sulfuric acid solution and zinc concentrate powder The ratio is 115:1;
[0031] (3) Turn on the electric stirrer and heat to 90°C for 5 hours;
[0032] (5) Filtration, cooling, suction filtration, obtained leaching solution and leaching residue, the leaching residue is extracted with tetrafluoroethylene to recover by-product sulfur;
[0033] (6) Solvent extraction is used to separate the leaching solution. The extraction solvent is P507 sulfonated kerosene system. The leaching solution is acidified, concentrated, evaporated, crystall...
Embodiment 3
[0035] A production method of zinc sulfate, comprising the steps of:
[0036] (1) Grind and crush the zinc concentrate into 60-mesh powder, and then put it into a sealed container;
[0037] (2) Add ferrous sulfate with a mass fraction of 2wt% of zinc concentrate powder to the container of step (1) as a catalyst, and add sulfuric acid solution at the same time. The concentration of sulfuric acid solution is 16wt%. The mass fraction of sulfuric acid solution and zinc concentrate powder The ratio is 110:1;
[0038] (3) Turn on the electric stirrer and heat to 85°C for 4 hours;
[0039] (5) Filtration, cooling, suction filtration, obtained leaching solution and leaching residue, the leaching residue is extracted with tetrafluoroethylene to recover by-product sulfur;
[0040] (6) Solvent extraction is used to separate the leaching solution. The extraction solvent is P507 sulfonated kerosene system. The leaching solution is acidified, concentrated, evaporated, crystallized, centri...
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Abstract
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Application Information
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