Method for producing aluminum borate or magnesium borate through reaction extrusion technology
A technology of reactive extrusion and aluminum borate, which is applied in the direction of borate, boron oxide, etc., can solve the problems of affecting product performance, mixed with by-product impurities, large particle size of aluminum borate or magnesium borate, etc., and achieves low production cost , shorten the reaction time, reduce the effect of energy consumption
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Embodiment 1
[0031] A method for producing aluminum borate using a reactive extrusion process includes the following steps:
[0032] (1) Mix 3420g aluminum sulfate and 4020g sodium tetraborate uniformly and then react and extrude on a twin-screw extruder; obtain a white mud-like product after reactive extrusion; the reaction extrusion temperature is 80°C;
[0033] (2) The product of step (1) is matured at 50°C for 24 hours; then the product is washed, filtered and dried to obtain white aluminum borate powder. After testing, the yield of the product obtained in this example was 98%. The particle size analysis of the obtained aluminum borate is shown in Table 1, and the infrared detection spectrum is shown in figure 1 .
Embodiment 2
[0042] A method for producing aluminum borate using a reactive extrusion process includes the following steps:
[0043] (1) Mix 2130g aluminum nitrate and 1740g ammonium tetraborate uniformly and react and extrude on a twin-screw extruder; obtain a white mud-like product after reactive extrusion; the reaction extrusion temperature is 50°C;
[0044] (2) The product of step (1) is matured at 20° C. for 48 hours; then the product is washed, filtered and dried to obtain white aluminum borate powder. After testing, the yield of the product obtained in this example was 97%. The particle size analysis of the obtained aluminum borate is shown in Table 2, and the infrared detection spectrum is shown in image 3 .
[0045] Table 2 Particle size analysis of aluminum borate prepared in Example 2 and Comparative Example 1
[0046]
[0047] figure 2 It is the infrared detection spectrum of aluminum borate prepared in Example 2 and Comparative Example 1. From figure 2 It can be seen that th...
Embodiment 3
[0049] A method for producing aluminum borate using a reactive extrusion process includes the following steps:
[0050] (1) After mixing 1330g aluminum chloride and 2330g potassium tetraborate uniformly, they are reacted and extruded on a twin-screw extruder; a white mud-like product is obtained after reactive extrusion; the reaction extrusion temperature is 100°C;
[0051] (2) The product of step (1) is matured at 80°C for 4 hours; then the product is washed, filtered and dried to obtain white aluminum borate powder. After testing, the yield of the product obtained in this example was 96%. The particle size analysis of the obtained aluminum borate is shown in Table 3, and the infrared detection spectrum is shown in image 3 .
[0052] Table 3 Particle size analysis of aluminum borate prepared in Example 3 and Comparative Example 1
[0053]
[0054] image 3 It is the infrared detection spectrum of aluminum borate prepared in Example 3 and Comparative Example 1. From image 3 I...
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