Radionuclide decontaminant, and preparation method and application thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A radionuclide, detergent technology, applied in chemical instruments and methods, surface active detergent compositions, detergent compounding agents, etc., can solve the problems of uncertainty, waste of materials, complexity, etc.
Pending Publication Date: 2021-08-31
YANGJIANG NUCLEAR POWER +2
View PDF6 Cites 1 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0005] The dirt composition on the surface of the sling and seat belt is not only complex and uncertain, but also the dirt may be layered after a long period of impact with air dust and air drying, which greatly increases the difficulty of decontamination.
In addition, the diversity of fiber materials (polyester, polyester, nylon) for lifting belts and safety belts (common type, fireproof type, fluorescent type, light inspection type, protective type, high-strength type, combination type), cleaning time process The limitations of the existing custo
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1-6
[0053] In Examples 1-6, three detergents with different components were respectively prepared by using the preparation method provided by the present invention.
[0054] See Table 1 and Table 2 for the raw material composition of detergent in each embodiment of 1kg.
[0055] Concrete preparation method is as follows:
[0056] Prepare each component according to weight percentage: chelating agent, nuclide removing agent, surfactant, complex enzyme, pH regulator and water;
[0057] Then add water first in the container with stirrer; Add described chelating agent, nuclide removing agent, tensio-active agent and complex enzyme successively to described container under agitation;
[0058] Utilize a stirrer to stir the solution in the container, the stirring speed is 800r / min, and the stirring time is 40min;
[0059] Add an appropriate amount of the pH regulator into the container to adjust the pH value of the solution to 9.0, continue to stir for 15 minutes, mix well, test, and p...
Embodiment 1
[0078] The decontamination effect of the decontamination agents in Examples 1-6 on radioactive contamination can reach more than 83.6%, far exceeding the cleaning effect of clear water. Among them, the decontamination effect of the decontamination agents in Embodiment 1, Embodiment 2 and Embodiment 3 on the radioactive contamination on the surface of the sling is as high as 97%, and has a very strong effect of removing radionuclides.
[0079] figure 1 For the photo of the sling before decontamination, figure 2 It is a photo of the sling after the decontamination treatment with the detergent in Example 3. It can be clearly found that the oil stain on the surface of the sling is smoother after the decontamination treatment. image 3 It is the SEM photo of the sling after the decontamination treatment by the detergent in Example 3, which further proves that the decontamination agent in Example 3 has an excellent decontamination effect on the sling without destroying the sling ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a radionuclide decontaminant, and a preparation method and application thereof. The decontaminant comprises, by mass, 8-12% of a surfactant, 2-5% of compound enzyme, 16-20% of a nuclide removing agent, 8-14% of a chelating agent and water. The preparation method comprises the following steps: preparing the required components according to the weight percentage; adding water into the container; sequentially adding the chelating agent, the nuclide removing agent, the surfactant and the compound enzyme into the container under stirring; and adding a proper amount of the pH regulator into the container, and fully and uniformly mixing to obtain the decontaminant. The application means that the decontaminant is used for removing radionuclides on the surface of a lifting belt or a safety belt for a nuclear power plant. The decontaminant has an excellent cleaning effect on dust and greasy dirt on the surfaces of the lifting belt and the safety belt, especially has an excellent removal effect on radionuclide contamination, and meanwhile, the detergent does not contain corrosive components, is environment-friendly and does not cause damage to fiber materials.
Description
technical field [0001] The invention relates to nuclear power plant waste treatment technology, in particular to the technical field of radioactive pollution decontamination, and more specifically, to a radionuclide decontamination agent and its preparation method and application. Background technique [0002] In Europe and the United States, the production and use of synthetic fiber flexible lifting belts began 30 years ago, and now they account for nearly 70% of the total lifting consumption. Almost all factories will use them. Chinese enterprises began to use them a few years ago, and their market share has continued to increase. Synthetic fiber slings are widely used in various industries such as: metallurgy, oil pipelines, wind power hoisting, power transmission and transformation, nuclear power, shipbuilding, precision machinery, aerospace, port hoisting, chemical industry and other fields. [0003] The flexible sling is light in weight, only 20% of the weight of the s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more