Hydrogenated petroleum resins are light-colored or colorless high-end petroleum resins obtained by catalytic hydrogenation of unsaturated bonds in petroleum resins as the base raw material. In addition to lighter color and no special odor, they also have improved weatherability, stability and compat

We can protect our health to a certain extent by understanding the hazards of solvents, which are the most hazardous material components in solvent-based coatings for environmental pollution and human health. The toxicity of solvents refers to both the toxic effect of solvents on human body. Toxic solvents can be absorbed by the body through the skin and digestive tract and cause poisoning. The common toxicity of most organic solvents to the human body is in high concentrations of vapor contact performance of anesthetic effects.

With the improvement of China's science and technology development level, more and more technologies have started to emerge in front of people. In the fine chemical industry, catalytic hydrogenation technology is extremely effective and is widely used in China's chemical industry, which mainly uses loaded catalysts.

The above three points are the conventional factors affecting the reaction speed, the so-called catalytic hydrogenation reaction is too slow generally refers to the problem of slow reaction even after adjusting the above factors to the near limit, which is the focus of this problem. At these times, it is already difficult to solve the problem by theoretical inference alone, and the main influencing factors are summarized through experiments, including

The most common problem in hydrogenation catalysis is that the reaction is slow, or even stops, and the catalyst must be filtered out and the filtrate replenished with new catalyst to continue the reaction.

Catalysis plays a very important role in the progress of human civilization and the development of the world economy. It is widely used in energy, chemical, food, pharmaceutical and electronic industries because of its ability to transform raw materials into high value-added chemical products and fuels in an efficient, green and economical way. Currently, catalysis is used in more than 90% of the world's chemical production processes.