When using organic solvents as cleaning agents, in addition to paying special attention to their own safety, the following issues should also be considered:
1. Economic Efficiency
Due to the high price of organic solvents, economic efficiency is essential. This necessitates considering the regeneration and recycling of organic solvents. Common methods for regenerating organic solvents include distillation, static separation, extraction, filtration, adsorption, and centrifugation. These methods aim to remove impurities and recover the solvent.
2. Purity of Organic Solvents
Organic solvents may be pure organic compounds with a single component or mixtures of several organic compounds. Relatively speaking, single-component organic solvents are easier to regenerate and reuse through distillation.
Different cleaning processes have varying purity requirements for organic solvents. Precision industrial cleaning demands high-purity organic solvents, often requiring stringent control over impurities.
3. Environmental Pollution by Organic Solvents
The environmental pollution caused by solvents is a major concern for environmental departments nationwide. Therefore, when using organic solvents, it is necessary to switch to water-based cleaning agents, improve processes to increase solvent efficiency, reduce solvent usage, and strengthen solvent recovery and reuse during the cleaning process.