Polyaluminum ferrous chloride purifier and production method thereof
A technology of iron water purifying agent and polyaluminum chloride, which is applied in the field of polyaluminum chloride ferric water purifying agent and its manufacturing, can solve the problem of not considering the influence of production process and product performance, unstable products, gelation of reaction pool materials and other problems, to achieve the effect of improving the effect of coagulation and sedimentation, improving product stability and reducing manufacturing costs
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[0028] Example 1
[0029] (1) In parts by weight, take 65 parts of industrial hydrochloric acid and put it into a closed acid-resistant reaction vessel, add 100 parts of aluminum sludge evenly under stirring, and stir for 0.5-1 h at normal temperature and pressure. 2 SO 4 AlCl 3 acid solution;
[0030] (2) Add 32 parts of CaCl to the solution obtained in step (1) 2 , stirring at room temperature and pressure to make the reaction complete, and filtering to remove CaSO 4 Precipitation to obtain AlCl 3 acid solution;
[0031] (3) Add 10 parts of iron and steel pickling waste liquid to the solution obtained in step (2), stir, and mix evenly to form AlCl 3 and FeCl 2 mixed acid solution;
[0032] (4) Add the oxidant sodium chlorate to the solution obtained in step (3), and its addition amount is equal to the amount of all Fe in the solution. 2+ oxidized to Fe 3+ whichever prevails, get AlCl 3 and FeCl 3 mixed acid solution;
[0033] (5) 212 parts of calcium aluminate p...
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[0034] Example 2
[0035] (1) In parts by weight, take 100 parts of industrial hydrochloric acid and put it into a closed acid-resistant reaction vessel, add 100 parts of aluminum sludge evenly under stirring, and stir at normal temperature and pressure for 0.5-1 h. After the reactants are completely dissolved, Na-containing 2 SO 4 AlCl 3 acid solution;
[0036] (2) Add 48 parts of CaCl to the solution obtained in step (1) 2 , stirring at room temperature and pressure to make the reaction complete, and filtering to remove CaSO 4 precipitation to obtain AlCl 3 acid solution;
[0037] (3) Add 60 parts of iron and steel pickling waste liquid to the solution obtained in step (2), stir, and form AlCl after mixing evenly 3 and FeCl 2 mixed acid solution;
[0038] (4) Add oxidizing agent hydrogen peroxide to the solution obtained in step (3), and the amount of its addition is equal to that of all Fe in the solution. 2+ oxidized to Fe 3+ whichever prevails, get AlCl 3 and F...
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[0040] Example 3
[0041] (1) In parts by weight, take 135 parts of industrial hydrochloric acid and put it into a closed acid-resistant reaction vessel, add 100 parts of aluminum sludge evenly under stirring, and stir for 0.5-1 h at normal temperature and pressure. 2 SO 4 AlCl 3 acid solution;
[0042] (2) Add 64 parts of CaCl to the solution obtained in step (1) 2 , stirring at room temperature and pressure to make the reaction complete, and filtering to remove CaSO 4 Precipitation to obtain AlCl 3 acid solution;
[0043] (3) Add 109 parts of iron and steel pickling waste liquid to the solution obtained in step (2), stir, and form AlCl after mixing evenly 3 and FeCl 2 mixed acid solution;
[0044] (4) Add oxidizing agent hydrogen peroxide to the solution obtained in step (3), and the amount of its addition is equal to that of all Fe in the solution. 2+ oxidized to Fe 3+ whichever prevails, get AlCl 3 and FeCl 3 mixed acid solution;
[0045] (5) Add 400 parts of ...
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