Knowledge

The world's fine chemical industry is the most developed to push the United States, the Federal Republic of Germany and Japan, its product output ranked first, second and third in

It has specific functional and practical characteristics.

Catalyst. Catalysts for oil refining, petrochemical, chemical industry, environmental protection (such as tail gas treatment) and other uses.

The term fine chemicals, which has been used for a long time, originally refers to chemical products with small output, high purity and high price, such as medicine, dyes, coatings

Isolate the contaminated area, set up warning signs around it, and cut off the fire source.

Extracted from the wash oil fraction in high temperature coal tar, about 0.10%-0.16% of indole.

An alkene containing a carbon-carbon double bond is called a monoolefin, and the general formula for a chain monoolefin is CnH2n. Olefins that contain more than one carbon-carbon d

Nitrile can be regarded as a compound in which hydrogen atoms of HCN are replaced by hydrocarbon groups.

Intermediate: a material produced in the process steps of the API that must undergo further molecular changes or refining to become the API. The intermediates can be separated or n

First, most of the production enterprises are private enterprises, flexible operation, and the scale of investment is not large, basically between millions and 12 to 20 million yua

In 2003, domestic paracetamol consumption increased rapidly, and exports also showed a rapid growth momentum, with exports of 28163 tons, and annual exports increased by about 1 ti

After nearly 50 years of development, β-lactam antibiotics in China have formed a complete production system.