Preparation for sodium titanate crystal whisker
A technology of potassium titanate whiskers and sodium titanate, applied in the field of materials, can solve the problems of unfavorable mass production of sodium titanate whiskers, complex preparation process of sodium titanate whiskers, and high manufacturing cost
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[0009] A kind of preparation method of sodium titanate whisker, concrete steps are as follows:
[0010] 1) Sodium compound and titanium compound according to Na 2 O / TiO 2 Molar ratio 1: (2~6) Weighing, fully mixed to obtain a mixture;
[0011] 2) Mixing the mixture prepared in step 1) with the whisker growth accelerator fluoride according to the mass fraction of 100: (2-10) to obtain a mixture containing fluoride;
[0012] 3) Put the mixture containing fluoride obtained in step 2) into a closed ceramic crucible, calcinate at a temperature of 800-1100° C. for 2-10 hours, and then cool naturally to obtain a calcined block of the mixture.
[0013] 4) Pulverize the calcined block of the mixed material prepared in step 3, and ball mill in a ball mill for 1 to 4 hours with water as the medium to obtain a slurry, wash with water until the clear liquid is neutral, dehydrate, dry, and sieve, Sodium titanate whiskers were obtained.
[0014] The sodium compound described in the above...
Embodiment 1
[0022] A kind of preparation method of sodium titanate whisker, concrete steps are as follows:
[0023] 1. Put industrial pure sodium carbonate and anatase titanium dioxide according to Na 2 O / TiO 2 Weigh at a molar ratio of 1:3 and mix thoroughly to obtain a mixture;
[0024] 2. Weighing and mixing the mixture prepared in step 1 and the whisker growth promoter sodium fluoride according to the ratio of 100:8 to obtain a mixture containing fluoride;
[0025] 3. Put the mixture containing fluoride obtained in step 2 into a closed ceramic crucible, calcinate at 850° C., keep it warm for 4 hours, and then cool naturally to obtain a calcined block of the mixture.
[0026] 4. Pulverize the calcined block of the mixed material obtained in step 3, and ball mill in a ball mill for 3 hours with water as the medium, and wash the obtained slurry with water until the pH value of the clear liquid is 7. Then dehydrate, dry and sieve to obtain sodium trititanate whiskers, the whiskers have...
Embodiment 2
[0028] A kind of preparation method of sodium titanate whisker, concrete steps are as follows:
[0029] 1. Put industrial pure sodium chloride and rutile titanium dioxide according to N 2 O / TiO 2 Weigh at a molar ratio of 1:6 and mix thoroughly to obtain a mixture;
[0030] 2. Weighing and mixing the mixture prepared in step 1 and potassium fluoride in parts by mass of 100:4 to obtain a mixture containing fluoride;
[0031] 3. Put the mixture containing fluoride prepared in step 2 into a closed ceramic crucible, calcinate at a temperature of 1050° C., keep it warm for 8 hours, and then cool naturally to obtain a calcined block of the mixture.
[0032] 4. Pulverize the calcined block of the mixed material prepared in step 3, and ball mill in a ball mill for 4 hours with water as the medium, and wash the obtained slurry with water until the pH value of the clear liquid is 7. Then dehydrate, dry and sieve to obtain sodium hexatitanate whiskers, the whiskers have a diameter of ...
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