Titanium ore acidolysis method through sulfuric acid process
A sulfuric acid method and acid hydrolysis technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems of inconvenient pumping of the premixed slurry, affecting the acid hydrolysis rate of the acid hydrolysis process, and complicated steps, so as to improve the premixed slurry. Mixed effects, reduced energy consumption, and intensity control Simple and easy effects
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Embodiment 1
[0027] 1) Add 24.6% concentration of dilute waste acid and 98% concentrated sulfuric acid produced by the sulfuric acid process titanium dioxide into the cooling crystallizer 1 at a ratio of 1:0.707. After mixing, the concentration is 55%. Fully cool the mixed acid To 53°C, continue aging in the crystallizer 1 for 2 hours to precipitate impurities. Then, after the solid impurities are removed with the filter press 2, the clear liquid is loaded into the concentrated waste acid tank 3.
[0028] 2) The acid ore ratio determined according to the characteristics of the titanium concentrate used and the initial concentration of the acid hydrolysis reaction are 1.55 and 84% respectively, and the amount of waste acid added is calculated to be 18 tons. Therefore, put 18 tons of concentrated waste acid from the concentrated waste acid tank 3 into the premix tank 4, start the premix tank agitator, add 30 tons of ground 47% titanium concentrate, and mix for 10 minutes.
[0029]3) Put the ...
Embodiment 2
[0033] 1) Put the concentrated and impurity-removed titanium white waste acid from the sulfuric acid process into the concentrated waste acid tank 3 with a concentration of 62% and a temperature of 55°C.
[0034] 2) The acid ore ratio determined according to the characteristics of the titanium concentrate used and the initial concentration of the acid hydrolysis reaction are 1.57 and 86% respectively, and the amount of waste acid added is calculated to be 18.3 tons. Therefore, put 18.3 tons of concentrated waste acid from the concentrated waste acid tank 3 into the premix tank 4, start the premix tank agitator, add 30 tons of ground 46.5% titanium concentrate, and mix for 10 minutes.
[0035] 3) pump the mixed slurry from the premixing tank 4 into the acidolysis pot 5, feed compressed air into the bottom of the acidolysis pot to stir, add 36.5 tons of 98% concentrated sulfuric acid according to the calculation results, and trigger the main reaction.
[0036] 4) After the main...
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