Nanometer zinc phosphate antirust pigment continuous production method and device
A technology for anti-rust pigments and production methods, applied in anti-corrosion coatings, inorganic pigment treatment, chemical instruments and methods, etc., can solve the problems of no industrialized production, no industrialized production equipment, high cost, and improve product quality and product stability. performance, good economic and social benefits, and low production costs
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[0042] Example 1
[0043] A continuous production method of nano-zinc phosphate antirust pigment includes the following steps:
[0044] (1) Dispersion: Weigh 99.7% of indirect zinc oxide and prepare a zinc oxide solution with water at a weight ratio of 1:9; take 10,000 parts of zinc oxide solution and 11 parts of dispersant, and add them to a vertical sand mill at the same time. Grind zinc oxide to D98≦1μm to prepare a zinc oxide dispersion; the dispersant 1 is commercially available Silok-7455;
[0045] (2) Acid preparation: add industrial phosphoric acid and deionized water into the dilution tank, stir to prepare a phosphoric acid solution with a concentration of 10%;
[0046] (3) Add 2 parts of CTAB, 403 parts of Span-403, 1300 parts of deionized water, 30 parts of cyclohexylamine, 15 parts of copolymer of acrylic acid and butyl acrylate into the reaction kettle continuously and uniformly, and add zinc oxide The dispersion liquid and the phosphoric acid solution are continuously a...
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[0053] Example 2
[0054] A continuous production method of nano-zinc phosphate antirust pigment includes the following steps:
[0055] (1) Dispersion: Weigh 99.7% of indirect method zinc oxide and prepare a zinc oxide solution with water at a weight ratio of 4:6; take 10,000 parts of zinc oxide solution and 18 parts of dispersant, and add them to a vertical sand mill at the same time. Grind zinc oxide to D98≦1μm to prepare a zinc oxide dispersion; the dispersant 1 is a commercially available Momentive 3013 dispersant;
[0056] (2) Acid preparation: add industrial phosphoric acid and deionized water into the dilution tank, stir to prepare a phosphoric acid solution with a concentration of 30%;
[0057] (3) Add 20 parts of Tween, 10 parts evenly, 1900 parts of deionized water, 50 parts of onion film, and 50 parts of copolymer of acrylic acid and butyl acrylate into the reactor. Under stirring, add zinc oxide The dispersion liquid and the phosphoric acid solution are continuously and u...
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[0064] Example 3
[0065] A continuous production method of nano-zinc phosphate antirust pigment includes the following steps:
[0066] (1) Dispersion: Weigh 99.7% of indirect zinc oxide and prepare a zinc oxide solution with water at a weight ratio of 2:7; take 10,000 parts of zinc oxide solution and 15 parts of dispersant, and add them to a vertical sand mill at the same time. Grind zinc oxide to D98≦1μm to prepare a zinc oxide dispersion; the dispersant 1 is a commercially available Momentive 4065 dispersant;
[0067] (2) Acid preparation: add industrial phosphoric acid and deionized water into the dilution tank, stir to prepare a phosphoric acid solution with a concentration of 20%;
[0068] (3) Add 5 parts of sodium dodecyl benzene sulfonate, 10 parts of sodium lauryl sulfate, 1600 parts of deionized water, 40 parts of PEG-2000, and 25 parts of copolymer of acrylic acid and butyl acrylate into the reaction. In the kettle, under stirring, continuously and uniformly add the zinc o...
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