Method for preparing mica titanium nacreous material
A pearlescent pigment, mica titanium technology, applied in inorganic pigment processing, chemical instruments and methods, fibrous fillers, etc., can solve the problems of extremely high pH control requirements, high pH value of the reaction solution, and general product quality, etc. Simple control of difficulty, no sintering phenomenon, and the effect of improving the quality of prepared products
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Embodiment 1
[0025] (1) prepare raw material mica powder 100g, mica powder is the muscovite powder that the diameter-thickness ratio by wet stripping is 58, particle diameter is 100 microns;
[0026] (2) Add 50g of urea continuously and evenly into 200mL of titanium salt solution, the titanium salt is made of TiO 2 Calculated as 33g, forming a metal salt mixed solution containing urea;
[0027] (3) Mix 100 g of mica powder in step (1) with 500 g of deionized water at room temperature, then stir at a speed of 100 rpm, and heat to 90 degrees Celsius, then add 200 g of urea, that is, urea and mica The powder dosage ratio is 2:1 and urea is added at one time; after reaching the desired reaction temperature, maintain the reaction temperature and stirring speed for 10 minutes, then add the metal salt mixture containing urea formed in step (2), and mix the metal salt After all the solution is added, continue to maintain the reaction temperature and hydrolyze for 30 minutes. After the hydrolysis ...
Embodiment 2
[0031] (1) prepare raw material mica powder 100g, mica powder is the muscovite powder that the diameter-thickness ratio by wet method stripping is 70, particle diameter is 200 microns;
[0032] (2) Add urea 30g continuously and evenly into the mixed solution formed by 100mL of titanium salt solution and 100mL of tin salt solution, the quality of titanium salt is expressed as TiO 2 Calculated as 20g, tin salt as SnO 2 Calculated as 1g, forming a metal salt mixture containing urea;
[0033] (3) Mix 100 g of mica powder in step (1) with 500 g of deionized water at room temperature, then stir at a speed of 250 rpm, and heat to 70 degrees Celsius, then add 150 g of urea, that is, urea and mica The powder dosage ratio is 1.5:1 and urea is added at one time; after reaching the required reaction temperature, maintain the reaction temperature and stirring speed for 15 minutes, then add the metal salt mixed solution containing urea formed in step (2), and the metal salt is mixed After...
Embodiment 3
[0037] (1) prepare raw material mica powder 200g, mica powder is the muscovite powder that the diameter-thickness ratio by wet method stripping is 60, particle diameter is 20 microns;
[0038] (2) 70g of urea is continuously and uniformly added to the mixed solution formed by 200mL of titanium salt solution, 200mL of tin salt solution and 200mL of iron salt solution, the quality of titanium salt is expressed as TiO 2 Calculated as 50g, tin salt as SnO 2 Calculated as 2g, iron salt as Fe 2 o 3 Calculated as 12.5g, forming a metal salt mixed solution containing urea;
[0039] (3) Mix 200 g of mica powder in step (1) with 1200 g of deionized water at room temperature, then stir at a speed of 300 rpm, and heat to 80 degrees Celsius, then add 600 g of urea, that is, urea and mica The powder dosage ratio is 3: 1, and urea is one-time addition; After reaching the required reaction temperature, maintain the reaction temperature and stirring speed for 20 minutes, then add the metal ...
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