There are strict requirements for solvent in oil production by leaching, which mainly include solvent selection, purity, safety and environmental protection. Solvent plays an important role in the process of extracting oil, which directly affects the extraction efficiency and product quality. Therefore, it is very important to choose a suitable solvent and meet the relevant requirements.

First of all, for the choice of solvent, we need to consider its solubility, volatility, stability and cost. Solubility refers to the solvent’s ability to dissolve the substances needed to be extracted from raw materials, and it is usually required to choose a solvent with high selectivity and solubility for the target substances. Volatility means that the solvent is easy to evaporate after extraction, so as to facilitate subsequent separation and recovery. Stability means that the solvent is not easy to undergo chemical changes or degradation in the extraction process to ensure the stability and consistency of the extraction process. The cost needs to consider the price and availability of solvent to ensure the controllability of production cost.
Secondly, the purity of the solvent is also an important consideration. High-purity solvent can reduce the interference of extracted substances and improve the purity and quality of products. Therefore, when selecting solvent, it is necessary to ensure that they meet the relevant purity standards, and there are corresponding detection methods for quality control.
Besides, security is another important requirement. In the production process, the solvent needs to ensure that it is not harmful to the safety of operators and equipment, and it needs to meet the relevant safety standards and regulations. In the process of use, it is necessary to strengthen the safety management of solvent storage, transportation and treatment to prevent accidents.
Finally, environmental protection is also a requirement that cannot be ignored. Choosing environmentally friendly solvent can reduce environmental pollution and conform to the concept of sustainable development. Therefore, when selecting solvent, it is necessary to consider its impact on the environment and comply with relevant environmental regulations and standards.
To sum up, the extraction of oil has strict requirements for solvent, and its selection, purity, safety and environmental protection need to be comprehensively considered. Only by selecting appropriate solvent and meeting the relevant requirements can we ensure the efficient, stable and sustainable development of the extraction process.