Major events in the development of the chemical industry and the years in which they occurred 10

1. Chemical and pharmaceutical majors: Scope of employment: can be engaged in scientific research, technology development, process and equipment design, production management and marketing in pharmaceutical enterprises, pharmaceutical research institutes, pharmaceutical marketing, medical and health management departments and corresponding fine chemical fields.

2. Major in chemical engineering and technology.

1. Chemical process: It is suitable for the technical and management work of chemical plants, fertilizer plants, coking plants, gas plants, pharmaceutical factories and other chemical enterprises, and is also suitable for the development and design of chemical research and design units.

2. Industrial analysis: Scope of employment: can be engaged in development research and education management in large and medium-sized laboratories and research institutes in chemical industry, coal energy conversion, metallurgy, waste minerals, environmental protection, light industry, food, building materials and commodity inspection.

3. Fine Chemicals: Business Competence: Master the basic theories of inorganic chemistry, organic chemistry, physical chemistry, chemical unit operation and chemical reaction engineering; Master the basic knowledge of the production process of fine chemical products; It has the ability to research and develop fine chemical products; Master the production process of fine chemical products, and have the initial ability of process design, equipment counting, technical transformation and management.

4. Polymer chemical industry: scope of employment: can be engaged in the production, design and scientific research departments and polymer processing departments related to polymer synthesis {plastics, fiber production plants and research departments) and related application units.

3. Process equipment and control engineering: scope of employment: can work in various chemical plants and chemical machinery repair plants and corresponding design institutes, research institutes, colleges and universities, technical secondary schools and other departments, and engage in the design, manufacturing, scientific research and technical management of chemical equipment and machinery.

4. Training objectives of applied chemistry major: Scope of employment: can be engaged in scientific research, technology development, process design, technical management and teaching in the fields of chemistry, chemical engineering, materials, environmental protection, energy and other fields in factories, enterprises, schools, research institutes and departments.

Ceramics are made of clay, quartz and feldspar and other natural mineral raw materials according to different formulas, through processing, molding and firing, its chemical composition depends on the natural raw materials and formula, different regions of different kilns of ancient ceramics due to the different raw materials used, different formulas and different firing processes, the chemical composition, microstructure and physical properties of the glaze will have their own characteristics. If the ceramic specimens with reliable stratigraphic age at the time of excavation at different kiln mouths are collected for systematic research, the accumulated data such as chemical composition data (including the content of primary and secondary elements and trace elements) are established in a database, and the data are processed by appropriate processing methods, such as multivariate statistical analysis, to find out the laws with characteristic significance. The chemical composition, microstructure, physical properties and firing process of the ceramics to be identified.

1. Embryonic period.

Ancient period of process chemistry. At this time, human pottery, metallurgy, winemaking, dyeing and other processes were mainly inspired by practical experience after tens of thousands of years of exploration, and chemical knowledge had not yet been formed. This was the embryonic age of chemistry.

2. The period of alchemy and medicinal chemistry.

From 1500 B.C. to 1650 A.D., alchemists and alchemists began the earliest chemical experiments in the palace, in the church, in their own homes, in the smoke and fire of the deep mountains and old forests, in order to seek the elixir of immortality, in order to seek glory and wealth.

3. Phlogiston period.

This period, from 1650 to 1775, was the gestation of modern chemistry. With the accumulation of metallurgical industry and laboratory experience, people summarize perceptual knowledge and carry out theoretical research on chemical changes, making chemistry a branch of natural science.

4. Development period.

This period, from 1775 to 1900, was the period of the development of modern chemistry. Around 1775, Lavoisier expounded the oxidation theory of combustion with quantitative chemical experiments, which ushered in the period of quantitative chemistry and brought chemistry on the right track.

German chemists Liebig and Wühler developed the theory of organic structure, which made chemistry a systematic science and laid the foundation for the development of modern chemistry.

5. Modern chemical period.

At the beginning of the twentieth century, the development of quantum theory gave chemistry and physics a common language, solving many unsolved problems in chemistry; On the other hand, chemistry has penetrated into biology and geology, so that the structural problems of proteins and enzymes have been gradually solved.