Optical-grade aluminum dihydrogen phosphate
An optical-grade aluminum dihydrogen phosphate technology, applied in the chemical industry, can solve the problem that the purity of aluminum dihydrogen phosphate cannot meet the needs of use, and achieve the effect of uniform particles
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[0020] Example 1:
[0021] 1) Take 250 kilograms of distilled water and 200 kilograms of aluminum hydroxide into the No. 1 reactor, turn on the mixer to stir and dissolve, then add 600 kilograms of 31% industrial hydrochloric acid and 350 kilograms of 85% industrial phosphoric acid while stirring, and continue the stirring reaction 30 minutes, at this time the temperature of the solution is between 80-85°C, stop stirring and cool for about 2 hours, the solution is separated into layers, the lower layer is released, and the upper layer solution is transferred to the No. 2 reactor;
[0022] 2) Add 12 kilograms of extracting associating agent to the No. 2 reactor to purify and remove impurities, where the mass ratio of tributyl phosphate and kerosene in the extracting bottom associating agent is 8:10, then stir for 30 minutes, and stand for stratification;
[0023] 3) Remove the lower layer solution for analysis. If the iron content in the lower layer solution is less than 2PPM, copper ...
Example Embodiment
[0026] Example 2
[0027] 1) Take 300 kilograms of distilled water and 240 kilograms of aluminum hydroxide into the No. 1 reactor, turn on the mixer to stir and dissolve, then add 800 kilograms of 31% industrial hydrochloric acid and 420 kilograms of 85% industrial phosphoric acid while stirring, and continue the stirring reaction 30 minutes, at this time the temperature of the solution is between 80-85°C, stop stirring and cool for about 2 hours, the solution is separated into layers, the lower layer is released, and the upper layer solution is transferred to the No. 2 reactor;
[0028] 2) Add 15 kilograms of extracting associating agent to the No. 2 reactor to purify and remove impurities, in which the mass ratio of tributyl phosphate and kerosene in the extracting bottom associating agent is 8:10, then stir for 30 minutes and stand for stratification;
[0029] 3) Remove the lower layer solution for analysis. If the iron content in the lower layer solution is less than 2PPM, copper...
Example Embodiment
[0032] Example 3
[0033] 1) Take 380 kg of distilled water and 300 kg of aluminum hydroxide into the No. 1 reactor, turn on the mixer to stir and dissolve, then add 1000 kg of 31% industrial hydrochloric acid and 520 kg of 85% industrial phosphoric acid while stirring, and continue the stirring reaction 30 minutes, at this time the temperature of the solution is between 80-85°C, stop stirring and cool for about 2 hours, the solution is separated into layers, the lower layer is released, and the upper layer solution is transferred to the No. 2 reactor;
[0034] 2) Add 18 kilograms of extracting associating agent to the No. 2 reactor to purify and remove impurities, in which the mass ratio of tributyl phosphate and kerosene in the extracting bottom associating agent is 8:10, then stir for 30 minutes, and stand for stratification;
[0035] 3) Remove the lower layer solution for analysis. If the iron content in the lower layer solution is less than 2PPM, copper is less than 1PPM, cobalt...
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