Phenol ketone products

Plastic rubber

Current Location： Home > News > Chemical Knowledge > What are the upstream raw materials of calcium carbide? What do the downstream products contain?

[Chemical Knowledge]：What are the upstream raw materials of calcium carbide? What do the downstream products contain?

Read： 545 Time：13months ago Source：Transform the World with Simplicity

Calcium carbide plays an important role in the field of raw materials for chemical production, and its upstream and downstream related products are extensive. This article will detail the upstream and downstream related products of calcium carbide, including upstream raw materials, downstream products, and by-products and wastes in the production process.

1. upstream raw materials
the main upstream raw materials for
calcium carbide are coke and limestone. Coke is made by heating coal under isolated air conditions and is the main carbon source for calcium carbide production. The main component of limestone is calcium carbonate, which is calcined and decomposed into calcium oxide and carbon dioxide. Calcium oxide reacts with carbon in coke at high temperature to form calcium carbide.

2. downstream products

1. acetylene
calcium carbide and water reaction to produce acetylene, acetylene is an important organic synthesis raw material, can be used to produce vinyl chloride, vinyl acetate, acetaldehyde, acetic acid and other chemicals.
2. Vinyl chloride
Acetylene reacts with hydrogen chloride to produce vinyl chloride, which is an important raw material for the production of polyvinyl chloride (PVC).
3. Polyvinyl chloride (PVC)
by the polymerization of vinyl chloride to produce polyvinyl chloride, polyvinyl chloride is a widely used plastic material, can be used for pipes, profiles, films and other fields.
4. vinyl acetate
acetylene and acetic acid reaction to generate vinyl acetate, vinyl acetate is an important organic synthesis raw material, can be used for the production of polyvinyl alcohol, adhesives and so on.

3. by-products and waste

1. lime nitrogen
calcium carbide production process will produce lime nitrogen by-products, lime nitrogen is a high nitrogen chemical fertilizer, can be used for soil improvement and plant growth regulation.
2. waste gas
calcium carbide production process will produce dust, sulfur, nitrogen and other waste gas, need to be purified to meet the emission standards, in order to reduce environmental pollution. Summary of

:

calcium carbide plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are extensive. Upstream raw materials are mainly coke and limestone, while downstream products include acetylene, vinyl chloride, polyvinyl chloride and vinyl acetate. The production process also produces waste such as lime nitrogen by-products and waste gas. In order to promote the sustainable development of the chemical industry, it is necessary to strengthen the environmental management and waste resource utilization of calcium carbide production process, improve the efficiency of resource utilization and reduce the impact on the environment.

Previous： What are the upstream raw materials of flake? What do the downstream products contain?

Next： What are the upstream raw materials of raw salt? What do the downstream products contain?

News Categories