In industrial cleaning, chemical agents are used to dissolve the dirt on the surface of the dirt. The essence is that the industrial cleaning agent starts to dissolve the dirt surface in contact with it. At the same time, the cleaning agent penetrates into the dirt to reduce the dirt between the particles. Bonding force and reducing the bonding force between the dirt and the basic equipment, so that the dirt is dissolved or loosened off and removed. The purpose of chemical cleaning operations is to remove pollution, improve quality and obtain good processing performance.

The development of chemical cleaning technology is closely related to the progress of industrial cleaning agents. Recently, the combination of green chemistry and chemical cleaning concepts has been proposed, that is, under the condition of reducing or eliminating the use of harmful substances and avoiding the generation of harmful substances, use the least chemical agents as much as possible to remove the dirt on the surface of the object and restore it to the original surface state. process.

With the progress of fine organic synthesis technology, biotechnology and detection technology and other related technologies, industrial cleaning agents will develop in the direction of molecular design, and green environmentally friendly industrial cleaning agents with biological defense capabilities and enzyme catalysis will be synthesized; weakly acidic or medium-sized Organic compounds will replace strong acids and alkalis; linear organic compounds and plant extracts will replace aromatic-based compounds; phosphorus- and fluorine-free cleaning agents will replace phosphorus-containing fluorine cleaning agents; water-based cleaning agents will replace solvent-based and Emulsion type cleaning agent; biodegradable environmentally friendly cleaning agent will replace the traditional cleaning agent that is difficult to decompose; environmentally friendly industrial cleaning agent has strong function and easy operation. In terms of cleaning auxiliaries, more attention is paid to the role of catalysts, accelerators, and stripping agents, and to make them non-toxic and low-dose. Corrosion inhibitors need to develop special high-efficiency corrosion inhibitors under special conditions. Although the chemical cleaning technology has developed to this day, although great progress has been made, there are still some problems that need to be solved. It is necessary to develop cleaning agents with better performance, including corrosion inhibitors with less corrosiveness, easy and safe operation, low cost and more efficient; it is necessary to develop green cleaning agents that meet environmental protection requirements. Even today, online chemical cleaning technology has not been widely used.