Quantitative analysis method for four components of petroleum asphalt
By using n-heptane, trichloroethylene, dichloromethane and anhydrous ethanol solvents, combined with ultrasonic dispersion and solid-phase extraction column technology, the rapid, accurate and environmentally friendly quantitative analysis of the four components of petroleum asphalt was achieved, and the problems of long measurement time, high technical requirements and solvent contamination in the existing methods were solved.
CN119715893APending Publication Date: 2025-03-28HAIYUN (HAINAN) MATERIALS TECHNOLOGY CO LTD +3
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Patent Information
- Application Number
- CN202411500307.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
The existing four-component quantitative analysis methods for petroleum asphalt have problems such as long measurement time, high technical requirements, and the large amount of toxic solvents, resulting in pollution and human harm.
Method used
Using n-heptane, trichloroethylene, dichloromethane and anhydrous ethanol solvents, the combination of ultrasonic dispersion, solid-phase extraction column and chromatography analyzer is used to achieve rapid, accurate and environmentally friendly quantitative analysis of the four components of petroleum asphalt.
Benefits of technology
It significantly shortens the measurement cycle of the four components of petroleum asphalt, reduces the harm to the human body and the environment, and improves the accuracy and safety of the analysis.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to the field of petroleum asphalt material component analysis, in particular to a quantitative analysis method for four components of petroleum asphalt. The quantitative analysis method for the four components of the petroleum asphalt, provided by the invention, has the process as shown in the steps 1-11. According to the invention, n-heptane, trichloroethylene, dichloromethane and absolute ethyl alcohol solvents are adopted, specific solvents or a combination of some solvents are used in specific steps, and the average use amount of the solvents does not exceed 30mL, so that the problems of harm of toluene to human bodies and environmental pollution caused by volatilization of a large amount of solvents are solved, and the method has environmental protection benefits; the four-component determination period of a single asphalt sample does not exceed 4.8 h and is only 10% of that of a traditional method, so that the detection time is greatly shortened; the solid-phase extraction column formed by matching neutral aluminum oxide and silica gel is adopted to replace a traditional adsorption column, the process that the adsorption column needs to be manually filled by technicians is omitted, the requirement for the technical ability of the technicians is greatly lowered, and meanwhile artificial influence factors are reduced.
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