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Preparation method of nanometer lutecium oxide with large specific surface area

A technology with large specific surface area and lutetium oxide, applied in chemical instruments and methods, rare earth metal oxides/hydroxides, inorganic chemistry, etc. The effect of high brightness, uniform particle size and large specific surface area

Inactive Publication Date: 2018-12-18
CHANGZHOU GEOQUIN NANO NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the combustion method is difficult to control and is not conducive to production, while the hydrothermal method is not conducive to mass production due to high equipment requirements, limited production capacity, and long reaction time.
In addition, the sol-gel method requires many stages, the production time is long, and the impurities introduced are difficult to remove

Method used

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  • Preparation method of nanometer lutecium oxide with large specific surface area
  • Preparation method of nanometer lutecium oxide with large specific surface area

Examples

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Effect test

Embodiment 1

[0010] Example 1: Precipitate 5KG of lutetium oxide. After calculation, add lutetium nitrate with a concentration of 0.4mol / L and a volume of 62.85L with pure water in the reaction kettle. The measured temperature is 17 degrees, and then the analytically pure carbonic acid is weighed. Sodium 4.26KG is prepared with pure water so that the concentration is 0.4mol / L, the volume is 100.56L, and the temperature is 15 degrees. Weigh 250 grams of PEG-20000 surfactant with a mass ratio of oxide of 5%, add 2.5L pure water , heated to dissolve it into a liquid, put PEG-20000 into lutetium nitrate, mix and stir for 15 minutes, then add sodium carbonate evenly, and the dropping time is 45 minutes, from which the dropping speed can be calculated as 2.23L / min. After the dropwise addition, add 100 grams of 2% sodium lauryl sulfate, heat and dissolve in 1L of pure water, add it to the above slurry, stir rapidly for 0.5 hours, and age for 2 hours , soak and wash in a suction filter barrel with...

Embodiment 2

[0011] Example 2: Precipitate 10KG of lutetium oxide. After calculation, add lutetium nitrate with a concentration of 0.5mol / L and a volume of 100.55L in the reaction kettle. The measured temperature is 25 degrees, and then the analytically pure carbonic acid is weighed. Sodium hydrogen 13.51KG is prepared with pure water so that the concentration is 0.6mol / L, the volume is 268.14L, and the temperature is 22 degrees. Weigh 1500 grams of PEG-20000 surfactant with a mass ratio of oxides of 15%, and add 15L of pure water , heated to dissolve it into a liquid, put PEG-20000 into lutetium nitrate and mix and stir for 30 minutes, then evenly add sodium bicarbonate dropwise, and the dropping time is 65 minutes, so it can be calculated that the dropping rate is 4.13L / min, by adjusting The speed device is used to control the flow rate and the rate of addition. After the dropwise addition, add 500 grams of 5% sodium dodecylbenzenesulfonate, put into 5L pure water and heat to dissolve, ad...

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Abstract

The invention relates to a preparation method of nanometer lutecium oxide with large specific surface area. According to the present invention, the lutecium oxide prepared by using the method has theparticle size of 30-50 nm and the specific surface area of more than 30 m<2> / g, and further has characteristics of less impurities, uniform particle size, large specific surface and good dispersion.

Description

[0001] The invention belongs to the field of material preparation, in particular to a method for preparing nanometer lutetium oxide with a large specific surface area. Background technique [0002] Scintillation materials are materials that can absorb high-energy particles or rays and emit visible photons. They are widely used in fields such as high-energy physics, nuclear medicine, space physics, and geological exploration. They require high blocking capabilities for ionizing radiation (with high density and large atomic number). Lutetium oxide has a high density and a large atomic number, and it has a good blocking effect on various types of rays; its energy band gap between the valence band and the conduction band is wide (6.5eV), and as a luminescent material matrix, it can accommodate many activator ions, so as a scintillator Bulk matrix materials are favored by people. Therefore, lutetium oxide is a promising luminescent material matrix. Whether it is a lutetium oxide-b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F17/00
CPCC01F17/206C01P2004/04C01P2004/64C01P2006/12
Inventor 王鹭
Owner CHANGZHOU GEOQUIN NANO NEW MATERIALS
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