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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

Pending Publication Date: 2020-01-07
上海麟光新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an optical-grade aluminum dihydrogen phosphate, which can solve the problem that the purity of aluminum dihydrogen phosphate cannot meet the use requirements in the production process of laser neodymium glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1) Take 250 kg of distilled water and 200 kg of aluminum hydroxide and add them to No. 1 reaction kettle respectively, turn on the mixer to stir and dissolve, then add 600 kg of 31% industrial hydrochloric acid and 350 kg of 85% industrial phosphoric acid while stirring, and continue to stir the reaction 30 minutes, when the temperature of the solution is between 80-85°C, stop stirring and cool for about 2 hours, the solution is layered, the lower layer of precipitate is released, and the upper layer solution is transferred to No. 2 reaction kettle;

[0022] 2) Add 12 kg of extraction association agent to No. 2 reaction kettle for purification and removal of impurities, wherein the mass ratio of tributyl phosphate and kerosene in the extraction bottom association agent is 8:10, then stir for 30 minutes, and let stand to separate layers;

[0023] 3) Take the lower layer solution for analysis, if the iron content in the lower layer solution is <2PPM, copper<1PPM, cobalt<1P...

Embodiment 2

[0027] 1) Take 300 kilograms of distilled water and 240 kilograms of aluminum hydroxide and add them to No. 1 reactor respectively, 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 to stir and react 30 minutes, when the temperature of the solution is between 80-85°C, stop stirring and cool for about 2 hours, the solution is layered, the lower layer of precipitate is released, and the upper layer solution is transferred to No. 2 reaction kettle;

[0028] 2) Add 15 kg of extraction and association agent to No. 2 reaction kettle for purification and removal of impurities, wherein the mass ratio of tributyl phosphate and kerosene in the extraction bottom association agent is 8:10, then stir for 30 minutes, and let stand to separate layers;

[0029] 3) Take the lower layer solution for analysis, if the iron content in the lower layer solution is <2PPM, c...

Embodiment 3

[0033] 1) Take 380 kg of distilled water and 300 kg of aluminum hydroxide and add them to No. 1 reactor respectively, 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 to stir and react 30 minutes, when the temperature of the solution is between 80-85°C, stop stirring and cool for about 2 hours, the solution is layered, the lower layer of precipitate is released, and the upper layer solution is transferred to No. 2 reaction kettle;

[0034] 2) Add 18 kg of extraction association agent to No. 2 reaction kettle for purification and removal of impurities, wherein the mass ratio of tributyl phosphate and kerosene in the extraction bottom association agent is 8:10, then stir for 30 minutes, and let stand to separate layers;

[0035] 3) Take the lower layer solution for analysis, if the iron content in the lower layer solution is <2PPM, copper<1PPM, cobalt<1PPM, nickel...

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PUM

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Abstract

The invention discloses optical grade aluminum dihydrogen phosphate. The optical grade aluminum dihydrogen phosphate comprises the following raw material components in parts by mass: 200-300 parts ofaluminum hydroxide, 660-1000 parts of 31% industrial hydrochloric acid, 350-520 parts of 85% industrial phosphoric acid, 520-790 parts of electronic-grade phosphoric acid, 250-380 parts of distilled water and 12-18 parts of an extraction association agent. The optical grade aluminum dihydrogen phosphate has high purity, the content of impurity iron is smaller than 2 ppm, and the content of impurities such as copper, cobalt and nickel is smaller than 0.1 ppm.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to an optical-grade aluminum dihydrogen phosphate. Background technique [0002] According to national major project construction and international market demand, and with the continuous progress and maturity of strong laser device technology, laser energy, as a green energy, is expected to replace existing energy in 2030, and its market value potential is huge. [0003] Laser neodymium glass is the core device of high-power laser devices, which plays the role of laser energy amplification. The core raw material for preparing laser neodymium glass directly determines the quality of laser neodymium glass, and its quality directly determines the amplification characteristics and energy output level of the laser energy gain of the strong laser device. The main composition of laser neodymium glass is R 2 O-RO-(R 2 o 3 )-P 2 o 5 , where the core raw material R 2 o 3 The...

Claims

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Application Information

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IPC IPC(8): C01B25/36C03C1/00
CPCC01B25/36C03C1/00C01P2006/80Y02E60/10
Inventor 沈洪娟
Owner 上海麟光新材料科技有限公司
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