Petrochemical

Ethylene Dichloride (EDC) is made by the chlorination of ethylene via one of two processes: direct chlorination using pure chlorine and ethylene; or oxychlorination in which ethylene reacts with chlorine in hydrogen chloride. Many EDC/VCM plants employ a combination of chlorination and oxychlorination to consume the hydrogen chloride by-product from the cracking of EDC to VCM.

The chemical compound 1,2-dichloroethane, commonly known as ethylene dichloride (EDC), is a chlorinated hydrocarbon, mainly used to produce vinyl chloride monomer (VCM, chloroethene), the major precursor for PVC production. It is a colorless liquid with a chloroform-like odor. Ethylene dichloride is also used generally as an intermediate for other organic chemical compounds, and as a solvent. 

Ethylene dichloride is produced through the iron(III) chloride catalyzed reaction of ethene (ethylene) and chlorine.

EDC is used primarily as a raw material in the manufacture of vinyl chloride monomer (VCM). The vinyl chloride, in turn is used to manufacture polyvinyl chloride (PVC) resin. EDC is also used as an intermediate in the manufacture of chlorinated and fluorinated compounds. EDC has been used as a solvent in the textile, metal cleaning and adhesive industries.

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Calcined petroleum coke (CPC) is the product from calcining petroleum coke. This coke is the product of the coker unit in a crude oil refinery. The calcined petroleum coke is used to make anodes for the aluminium, steel and titanium smelting industry.

Calcined Petroleum Coke is a critical ingredient in the production of aluminum. It is created by placing high quality raw "green" petroleum coke into rotary kilns, where it is heated to temperatures between 1200 to 1350 degrees C (2192 to 2460 F). The high temperatures remove excess moisture, extract all remaining hydrocarbons and modify the crystalline structure of the coke, resulting in a denser more electrically conductive product. In a matter of hours, calcined petroleum coke is cooled from 1350 degrees C to less than 200 degrees C, when it can be safely handled and transported to storage silos or placed directly into shipping containers, trucks, railcars, barges or vessels.

Calcined petroleum coke has a sponge-like structure which plays an important role in the making of anodes. The pores allow binding material to penetrate through the coke particles and form a solid carbon block, through which aluminum smelters conduct electricity into their smelting pots. Over time, the anodes are consumed, roughly at the rate of 40 tons of calcined petroleum coke for each 100 tons of aluminum produced. Currently, there is no known commercially viable substitute for calcined petroleum coke in the fabrication and utilization of aluminum smelter anodes.

NGN will supply different specifications of CPC for its valued customers.

Sodium carbonate serves as a flux for silica, lowering the melting point of the mixture to something achievable without special materials. This "soda glass" is mildly water-soluble, so some calcium carbonate is added to the melt mixture to make the glass produced insoluble.

The principal applications of sodium carbonate are in the manufacture of glass and the production of chemicals. It is also used in processing wood pulp to make paper, in making soaps and detergents, in refining aluminum, in water softening, and in many other applications.

The major uses of heavy sodium carbonate are as a solid, particularly in making glass, where it is used as a flux in the melting of silica (sand). The uses for light sodium carbonate are traditionally where the chemical is required in solution.

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