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Preparation and application method of antifreeze foam decontamination agent for decontamination of radioactive contamination

A technology of detergent and antifreeze, which is applied in the direction of chemical instruments and methods, surface active detergent compositions, antiseptic compositions, etc., and can solve the problems of foaming agents failing to foam, acid or chelating agent becoming worse, and foam stabilization The problems such as the inability of the agent to stabilize the foam, etc., achieve the effects of easy recycling, long half-life, and strong loading capacity

Active Publication Date: 2021-07-27
SOUTHWEAT UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding an unsuitable antifreeze agent to the foam detergent may cause the foaming agent to fail to foam, the foam stabilizer to stabilize the foam, or the effect of the acid or chelating agent to deteriorate

Method used

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  • Preparation and application method of antifreeze foam decontamination agent for decontamination of radioactive contamination
  • Preparation and application method of antifreeze foam decontamination agent for decontamination of radioactive contamination
  • Preparation and application method of antifreeze foam decontamination agent for decontamination of radioactive contamination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An antifreeze foam detergent for radioactive pollution decontamination, the composition of the detergent comprises: 1.3g biomass-based foaming agent, 0.3g biomass foam stabilizer, 0.1g foam stabilizing aid, 1g organic Acid, 40g antifreeze, 57.3g water; The biomass-based foaming agent is a mixture of 0.75g alkyl glucoside and 0.55g α-alkenyl sodium sulfonate; The biomass foam stabilizer is sodium carboxymethylcellulose ; The foam stabilizing agent is n-dodecyl alcohol; the organic acid is citric acid; the antifreeze is ethylene glycol.

[0038] A method for preparing the above-mentioned antifreeze foam detergent for radioactive contamination decontamination, comprising:

[0039]Step 1. In 40g of ethylene glycol, add 0.3g of sodium carboxymethylcellulose and 0.1g of n-dodecyl alcohol successively, and stir for 20min to obtain a uniformly dispersed antifreeze containing foam stabilizer and foam stabilizer. agent;

[0040] Step 2. Stir and dissolve 0.75 g of alkyl glucosi...

Embodiment 2

[0044] An antifreeze foam detergent for radioactive pollution decontamination, the composition of the detergent comprises: 1.5g biomass-based foaming agent, 0.3g biomass foam stabilizer, 0.1g foam stabilizing aid, 1.2g Organic acid, 40g antifreeze, 56.9g water; The biomass-based foaming agent is a mixture of 0.75g alkyl glucoside, 0.55g α-alkenyl sodium sulfonate and 0.2g tea saponin; the biomass stabilizes the foam The agent is sodium carboxymethyl cellulose; the foam stabilizing agent is n-dodecyl alcohol; the organic acid is 1g of oxalic acid and 0.2g of glycolic acid; the antifreeze is ethylene glycol.

[0045] A method for preparing the above-mentioned antifreeze foam detergent for radioactive contamination decontamination, comprising:

[0046] Step 1. In 40g of ethylene glycol, add 0.3g of sodium carboxymethylcellulose and 0.1g of n-dodecyl alcohol successively, and stir for 20min to obtain a uniformly dispersed antifreeze containing foam stabilizer and foam stabilizer. ...

Embodiment 3

[0051] An antifreeze foam detergent for radioactive pollution decontamination, the composition of the detergent comprises: 1.2g biomass-based foaming agent, 0.3g biomass foam stabilizer, 0.1g foam stabilizing aid, 1g organic Acid, 45g antifreeze agent, 52.4g water; The biomass-based blowing agent is the mixing of the alkyl glycoside of 0.55g, the alpha-alkenyl sulfonate sodium of 0.45g and the tea saponin of 0.2g; The biomass Foam stabilizer is sodium carboxymethylcellulose of 0.2g, hydroxyethyl cellulose of 0.1g; Described foam stabilizer is n-dodecyl alcohol; Described organic acid is citric acid; Described antifreeze is 40g of Ethylene glycol with 5 g of methanol.

[0052] A method for preparing the above-mentioned antifreeze foam detergent for radioactive contamination decontamination, comprising:

[0053] Step 1. Add 0.2 g of sodium carboxymethylcellulose, 0.1 g of hydroxyethyl cellulose and 0.1 g of n-dodecyl alcohol in sequence to 40 g of ethylene glycol and 5 g of met...

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Abstract

The invention relates to a method for preparing and using an antifreeze foam decontamination agent used for decontamination of radioactive pollution, which relates to the field of decontamination of radioactive pollution, and solves the problem that the existing radioactive pollution foam decontamination technology cannot effectively decontaminate at low temperature Question, the ingredients of the antifreeze foam detergent include biomass-based foaming agent, biomass foam stabilizer, foam stabilizer, organic acid, antifreeze, and water. After mixing the above ingredients according to certain steps, use a foam spray can Or stir on high speed for a foaming stain remover. The foam decontamination agent prepared by the present invention can be used at a low temperature of -35°C to 0°C. The foam draining process is slow, the half-life is long, and the stability is good. Effective decontamination, suitable for decontamination and elimination of radioactive pollution in low temperature areas.

Description

technical field [0001] The invention belongs to the field of decontamination of radioactive pollution, and in particular relates to the preparation and use method of an antifreeze biomass-based foam decontamination agent for decontamination of radioactive pollution, and is especially suitable for decontamination and decontamination of radioactive pollution in low-temperature areas. Background technique [0002] With the development of the economy, the increasing demand for energy has prompted the development of nuclear energy. Although today's nuclear energy is relatively safe, the risk of surface radioactive contamination still exists in the process of nuclear energy development, use, and decommissioning of nuclear facilities. In the decontamination process of surface radioactive contamination, liquid decontamination, film decontamination and foam decontamination are often used for decontamination treatment, so as to quickly and efficiently reduce radioactive contamination ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D1/83C11D3/22C11D3/20C11D3/33C11D3/60
CPCC11D1/14C11D1/66C11D1/662C11D1/83C11D3/0073C11D3/201C11D3/2044C11D3/2065C11D3/2086C11D3/222C11D3/225C11D3/33
Inventor 习海玲张浩林晓艳李战国王毅罗学刚
Owner SOUTHWEAT UNIV OF SCI & TECH
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