Greystone fiber modified porous light active calcium silicate highly radioactive wastewater treatment agent and preparation method

A technology of basalt fiber and active calcium silicate, which is applied in the directions of radioactive purification, chemical instruments and methods, and other chemical processes, can solve the problems of thermal stability, acid resistance and poor leaching resistance, and achieves improved adsorption effect and improved Heat-resistant stability, the effect of maintaining stability

Active Publication Date: 2016-03-23
胡倾成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Porous lightweight active calcium silicate although the 90 Sr 2+ and 137 Cs + It has good adsorption and removal performance, but its thermal stability, acid resistance and leaching resistance are poor, so it is not suitable f

Method used

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  • Greystone fiber modified porous light active calcium silicate highly radioactive wastewater treatment agent and preparation method

Examples

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Example Embodiment

[0016] Example 1:

[0017] A basalt fiber modified porous lightweight active calcium silicate high-level radioactive waste water stabilizing agent, the composition comprising the following weight (kg) of raw materials: basalt fiber 12, porous light active calcium silicate 40, silicon magnesium Glue 21, epoxy-based magnetic polymer microspheres 10, modified attapulgite 20, cetyltrimethylammonium bromide 3, sodium hydroxide 6, tetraethyl orthosilicate 3, modified iron oxide zeolite 21. Cationic surfactant cetyltrimethylammonium bromide ionic liquid 6.5 polypropylene fiber 35, appropriate amount of deionized water, appropriate amount of ethanol, appropriate amount of water.

[0018] A preparation method of basalt fiber modified porous lightweight active calcium silicate high-radioactive wastewater stabilizing treatment agent, including the following steps:

[0019] (1) Mix basalt fiber, modified attapulgite and 1.5 times the total weight of ethanol, heat and stir at 200°C for 3 hours, ...

Example Embodiment

[0023] Example 2:

[0024] A basalt fiber modified porous lightweight active calcium silicate high-level radioactive waste water stabilizing agent, the composition comprising the following weight (kg) of raw materials: basalt fiber 13, porous light active calcium silicate 41, silicon magnesium Gel 20.5, epoxy magnetic polymer microspheres 11, modified attapulgite 21, cetyltrimethylammonium bromide 3.5, sodium hydroxide 5.5, tetraethyl orthosilicate 3, modified iron oxide zeolite 20.5. Cationic surfactant cetyltrimethylammonium bromide ionic liquid 6.5, polyacrylate fiber 35, proper amount of deionized water, proper amount of ethanol, proper amount of water.

[0025] A preparation method of basalt fiber modified porous lightweight active calcium silicate high-radioactive wastewater stabilizing treatment agent, including the following steps:

[0026] (1) Mix basalt fiber, modified attapulgite and 1.5 times the total weight of ethanol, heat and stir at 200°C for 3 hours, and obtain mod...

Example Embodiment

[0030] Example 3:

[0031] A basalt fiber modified porous lightweight active calcium silicate high-level radioactive wastewater stabilizing agent, the composition comprising the following weight (kg) of raw materials: basalt fiber 14, porous light active calcium silicate 42, silicon magnesium Glue 20, epoxy magnetic polymer microsphere 12, modified attapulgite 22, cetyltrimethylammonium bromide 4, sodium hydroxide 5, tetraethyl orthosilicate 3, modified iron oxide zeolite 20. Cationic surfactant cetyltrimethylammonium bromide ionic liquid 6.5, polypropylene fiber 35, appropriate amount of deionized water, appropriate amount of ethanol, and appropriate amount of water.

[0032] A preparation method of basalt fiber modified porous lightweight active calcium silicate high-radioactive wastewater stabilizing treatment agent, including the following steps:

[0033] (1) Mix basalt fiber, modified attapulgite and 1.5 times the total weight of ethanol, heat and stir at 200°C for 3 hours, and...

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Abstract

The invention discloses a greystone fiber modified porous light active calcium silicate highly radioactive wastewater stabilization treatment agent and a preparation method. The composition is prepared from, by weight, 12-14 parts of greystone fiber, 40-42 parts of porous light active calcium silicate, 20-21 parts of silicon-magnesium rubber, 10-12 parts of epoxy group magnetic polymer microspheres, 20-22 parts of modified attapulgite, 3-4 parts of cetyl trimethyl ammonium bromide, 5-6 parts of sodium hydroxide, 2.5-3.5 parts of tetraethyl orthosilicate, 20-21 parts of modified iron oxide zeolite, 6-7 parts of cationic surfactant cetyl trimethyl ammonium bromide ionic liquid, 30-40 parts of polypropylene ester fiber, an adequate amount of deionized water, an adequate amount of ethyl alcohol and an adequate amount of water. The greystone fiber is adopted to modify the porous light active calcium silicate, the modified attapulgite is adopted to carry the greystone fiber, fusion is promoted, and acid and alkali resistance of adsorbent is improved; meanwhile, by means of the modified iron oxide zeolite and a silicon-magnesium rubber alkali solution, the adsorbing effect of a product is improved, and by means of the thermal reversibility of the silicon-magnesium rubber, the heat-resisting stability of the product is improved.

Description

technical field [0001] The invention belongs to the field of radioactive waste water treatment, and in particular relates to a basalt fiber modified porous light active calcium silicate highly radioactive waste water treatment agent and a preparation method. Background technique [0002] Nuclear power is an important part of my country's energy strategy, and it is also an important choice for my country to optimize energy structure, increase power supply, and cope with climate change. In the stage of rapid development of nuclear power, the safe disposal of nuclear waste is an important issue. Currently, high-level radioactive waste from nuclear power plants is 90 Sr 2+ and 137 Cs + It is a high heat release fission product with a long half-life period, and its removal is the key to the nuclear power radioactive waste disposal technology; [0003] Porous lightweight active calcium silicate although the 90 Sr 2+ and 137 Cs + It has good adsorption and removal performan...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30G21F9/12
CPCB01J20/041B01J20/043B01J20/10B01J20/12B01J20/186B01J20/22B01J20/26B01J2220/46B01J2220/4806B01J2220/4812G21F9/12
Inventor 胡倾成
Owner 胡倾成
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