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One-step preparation method of zirconium sodium phosphate glass ceramic solidified base material

A technology of sodium zirconium phosphate and glass ceramics, which is applied in glass manufacturing equipment, glass molding, glass furnace equipment, etc., can solve problems such as insufficient simplicity, cumbersome equipment requirements, unfavorable crystal phase and composition control, etc., and achieve excellent stability, Excellent chemistry, high inclusion capacity effect

Inactive Publication Date: 2019-04-19
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the point of view of the process system, the melting-crystallization method has a high-temperature reheating process, and the reheating process is not conducive to the control of crystal phase and composition; the sintering process is similar to the ceramic solidification process, which is extremely cumbersome and requires hi

Method used

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  • One-step preparation method of zirconium sodium phosphate glass ceramic solidified base material
  • One-step preparation method of zirconium sodium phosphate glass ceramic solidified base material
  • One-step preparation method of zirconium sodium phosphate glass ceramic solidified base material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A one-step preparation method for a sodium zirconium phosphate glass-ceramic solidified substrate, the steps are:

[0036] (1) Ingredients: with P 2 o 5 , Fe 2 o 3 , B 2 o 3 , ZrO 2 、Na 2 O is raw material, press P 2 o 5 49.4 parts by weight, Fe 2 o 3 37.1 parts by weight, B 2 o 3 2.1 parts by weight, ZrO 2 3.8 parts by weight, Na 2 The proportioning of 0.7.6 parts by weight gets each raw material;

[0037] (2) Mixing: put each raw material into a beaker and fully stir and mix evenly to obtain batch materials;

[0038] (3) heat preservation: heat the batch material at a heating rate of 5°C / min to 1200°C for 3 hours to obtain a mixture of glass melt and sodium zirconium phosphate microcrystalline phase;

[0039] (4) Molding: pouring the mixture of the glass melt and sodium zirconium phosphate microcrystalline phase obtained by heat preservation into a preheated mold to form a molded object;

[0040] (5) Annealing: heat the molding at a temperature of...

Embodiment 2

[0042] A one-step preparation method for a sodium zirconium phosphate glass-ceramic solidified substrate, the steps are:

[0043] (1) Ingredients: with P 2 o 5 , Fe 2 o 3 , B 2 o 3 , ZrO 2 、Na 2 O is raw material, press P 2 o 5 45.9 parts by weight, Fe 2 o 3 34.4 parts by weight, B 2 o 3 5.4 parts by weight, ZrO 2 9.5 parts by weight, Na 2 The proportioning of 0.4.8 parts by weight gets each raw material;

[0044] (2) Mixing: put each raw material into the ball milling equipment and fully ball mill and mix evenly to obtain batch materials;

[0045] (3) heat preservation: heat the batch material at a heating rate of 5°C / min to 1200°C for 3 hours to obtain a mixture of glass melt and sodium zirconium phosphate microcrystalline phase;

[0046] (4) Molding: pouring the mixture of the glass melt and sodium zirconium phosphate microcrystalline phase obtained by heat preservation into a preheated mold to form a molded object;

[0047] (5) Annealing: heat the mold...

Embodiment 3

[0049] A one-step preparation method for a sodium zirconium phosphate glass-ceramic solidified substrate, the steps are:

[0050] (1) Ingredients: with P 2 o 5 , Fe 2 o 3 , B 2 o 3 , ZrO 2 、Na 2 O is raw material, press P 2 o 5 46.4 parts by weight, Fe 2 o 3 34.8 parts by weight, B 2 o 3 5.4 parts by weight, ZrO 2 7.7 parts by weight, Na 2 The proportioning of 0.5 parts by weight gets each raw material;

[0051] Others are the same as embodiment 1 or 2, omitted.

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Abstract

The invention discloses a one-step preparation method of a zirconium sodium phosphate glass ceramic solidified base material, which comprises the following steps that a, by weight, 40-68 parts of P2O5, 15.5-38 parts of Fe2O3, 2-12 parts of B2O3, 3.5-18 parts of ZrO2 and 1-8.5 parts of Na2O; mixing the raw materials, keeping the temperature for 1-3 hours at 1100-1300 DEG C, obtaining the mixture ofthe glass melt and the sodium zirconium phosphate microcrystalline phase, forming and annealing to obtain the sodium zirconium phosphate glass ceramic solidified base material. The zirconium sodium phosphate glass ceramic solidified base material has excellent chemical stability and good thermal stability; the method has the advantages of simple and practical process, lower heat treatment temperature, easy control of the components of the solidified body, easy realization of remote control operation and engineering application of the solidification treatment of the high-level emission nuclearwaste, and wide application to the solidification treatment of the high-level emission waste.

Description

technical field [0001] The invention belongs to a glass ceramic solidification method of radioactive waste, and relates to a one-step preparation method of a sodium zirconium phosphate glass ceramic solidified base material. The invention uses the sodium zirconium phosphate glass ceramics as the solidification treatment method of the radioactive nuclear waste as the solidification substrate, and is suitable for the solidification treatment of the radioactive nuclear waste discharged in the nuclear industry and other fields. Background technique [0002] As a highly efficient and clean energy with relatively mature technology, nuclear energy has positive and far-reaching significance for the country to adjust its energy structure, ensure energy security, promote energy conservation and emission reduction, and respond to climate change. The peaceful use of nuclear energy has a history of more than half a century. It has a profound impact on the improvement of people's living s...

Claims

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Application Information

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IPC IPC(8): C03C10/02C03B5/16C03B19/02C03B25/00G21F9/30
CPCG21F9/305C03B5/16C03B19/02C03B25/00C03C10/00
Inventor 廖其龙刘金凤王辅
Owner SOUTHWEAT UNIV OF SCI & TECH
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