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A chemical preparation method for ultrafine ytterbium oxide having D50 of 1.5-2 [mu]m

A ytterbium oxide, chemical technology, applied in chemical instruments and methods, inorganic chemistry, rare earth metal compounds, etc., can solve the problems of destroying chemical structure, incomplete chemical properties, and difficulty in achieving particle size targets. The effect of improving application prospects, low sintering temperature, and good piezoelectric properties

Active Publication Date: 2019-07-05
CHANGZHOU GEOQUIN NANO NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Many preparation methods of ultra-fine ytterbium oxide are ground to the required particle size range, and then dried, etc. The prepared ultra-fine ytterbium oxide destroys the original chemical structure, so that its chemical properties cannot be fully affected
Moreover, the traditional precipitation method prepares conventional ytterbium chloride with large particle size and wide distribution, and it is difficult to achieve the set particle size target.
And different particle types have the same process requirements. At present, there is no chemical preparation method for ultrafine ytterbium oxide with a D50 of 1.5-2um.

Method used

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  • A chemical preparation method for ultrafine ytterbium oxide having D50 of 1.5-2 [mu]m
  • A chemical preparation method for ultrafine ytterbium oxide having D50 of 1.5-2 [mu]m
  • A chemical preparation method for ultrafine ytterbium oxide having D50 of 1.5-2 [mu]m

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Embodiment 1

[0023] This specific embodiment adopts the following technical scheme to prepare 5KG ytterbium oxide powder:

[0024] First prepare oxalic acid solution, weigh 9KG of refined oxalic acid and add 178.57L of pure water to make 0.4mol / L, stir until uniform; then prepare 126.88L of ytterbium chloride solution with a concentration of 0.2mol / L, first add dodecylbenzene Sodium sulfonate 250 g and heated pure water to prepare a 2.5 L solution, stirred until uniformly dispersed.

[0025] Then, while stirring the oxalic acid solution, quickly dropwise add the ytterbium chloride solution containing sodium dodecylbenzenesulfonate at a rate of 6 L / min, add 100 ml of 32% acetic acid after the dropwise addition, and fully stir for 1 hour. After stirring, filter with suction and wash with water. The washing temperature is higher than 95°C. After washing with water, filter and dry to obtain a precipitate. Burn the precipitate at 850-900°C for 3-5 hours to obtain ultrafine ytterbium oxide with ...

Embodiment 2

[0027] This specific embodiment adopts the following technical scheme to prepare 10KG ytterbium oxide powder:

[0028] First prepare oxalic acid solution, weigh 18KG of refined oxalic acid and add 714.29L of pure water to prepare 0.2mol / L, stir until uniform, then prepare 101.5L of ytterbium chloride solution with a concentration of 0.5mol / L, and add dodecylbenzenesulfonate 500 grams of sodium bicarbonate and heated pure water to prepare a 5 L solution, and stirred until evenly dispersed.

[0029] Then, while stirring the oxalic acid solution, quickly dropwise add the ytterbium chloride solution containing sodium dodecylbenzenesulfonate at a rate of 5 L / min, add 200 ml of 32% acetic acid after the dropwise addition, and fully stir for 1 hour. Suction filtration, water washing, water washing temperature greater than 95°C, water washing and filtering to obtain a precipitate, which is burned at 850-900°C for 3-5 hours to obtain ultrafine ytterbium oxide with D50:1.777μm.

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Abstract

A chemical preparation method for ultrafine ytterbium oxide having D50 of 1.5-2 [mu]m is disclosed, belonging to the technical field of ytterbium oxide preparation. The method includes a step of firstly preparing an oxalic acid solution, namely a step of weighing purified oxalic acid, adding the oxalic acid into pure water to prepare an oxalic acid solution having a concentration of 0.1-0.5 mol / L,and fully stirring the solution; a step of preparing a ytterbium chloride solution having a concentration of 0.1-0.5 mol / L, adding sodium dodecylbenzenesulfonate, and stirring the mixture until uniform dispersion; a step of rapidly adding dropwise the ytterbium chloride solution containing the sodium dodecylbenzenesulfonate into the oxalic acid solution under stirring, adding acetic acid after the addition of the ytterbium chloride solution is finished, and fully stirring the mixture for 1 h; and a step of performing suction filtration and water washing with water washing temperature being higher than 95 DEG C, then draining to obtain a precipitate, and firing the precipitate at 850-900 DEG C for 3-5 h to obtain the ultrafine ytterbium oxide.

Description

technical field [0001] The invention belongs to the field of ytterbium oxide preparation, and in particular relates to a chemical preparation method of ultrafine ytterbium oxide whose D50 is 1.5-2um. Background technique [0002] Ytterbium oxide is mainly used in the manufacture of magnetic bubble materials for computers, so that the magnetic bubble storage has the characteristics of high speed, large capacity, small volume, and multiple functions. Used in the manufacture of permanent magnet materials, optical glass, ceramic colorants, laser materials, catalysts, chemical additives, etc. It should be used in the preparation of rare earth up-conversion luminescent materials, radio ceramics and magnetic bubble materials. It is also an additive for optical glass and quartz glass fiber. [0003] Many preparation methods of ultra-fine ytterbium oxide are ground to the required particle size range, and then dried, etc. The prepared ultra-fine ytterbium oxide destroys the origina...

Claims

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Application Information

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IPC IPC(8): C01F17/00C04B35/491C04B35/626
CPCC04B35/491C04B35/626C01P2004/61C01F17/206
Inventor 王鹭
Owner CHANGZHOU GEOQUIN NANO NEW MATERIALS
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