1.Product introduction
Polyvinyl chloride is one of the most widely used general purpose plastics。PVC has good water insulation，So it is widely used to make water pipes，A shower curtain;In addition, PVC has flame retardant properties，Because when it burns，PVC releases chlorine atoms that inhibit combustion，Serve as a water supply line，Household plumbing，Building siding，Commercial machine housing，Electronic product packaging，Medical device，Food packaging。
Caustic soda was first used in the manufacture of soap, and later gradually used in papermaking, textile, printing and dyeing industries。After the 1960s, the development of petrochemical industry further expanded the use of caustic soda。Caustic soda is mainly used as desizing agent, boiling agent and mercerizing agent in cotton fiber textile and dyeing。In the production process of viscose fiber, it is necessary to treat the raw materials of cellulose with caustic soda, remove the hemicellulose and lignin in it, and about 1 ton of caustic soda is required for every 1 ton of viscose fiber produced。In light industry production, caustic soda is mainly used in the production of soap and synthetic detergent。It takes 0. 0 to produce 1 ton of soap.18 tons of caustic soda, the production of one ton of washing powder needs to use 0.09~0.11 tons of caustic soda。The paper industry is the largest consumer of caustic soda, accounting for about a quarter of the total consumption in China。Caustic soda is also widely used in the chemical industry, which can produce a variety of chemical products, such as borax, oxalic acid, formic acid, trisodium phosphate, sodium cyanide, epoxy resin, ion exchange resin, etc., and many fine chemical products also need to consume a certain amount of caustic soda。
2.Market prospect analysis
Although China's PVC production has made great progress in recent years, but still can not meet the huge demand for PVC in the domestic market, there are a considerable number of imports every year to make up for the market gap, the import volume of PVC resin and its products has increased significantly year by year。Demand has been growing faster than capacity for many years, and there is still plenty of room in the market。From the apparent point of view, the domestic PVC overcapacity, but which imported VCM and EDC method due to oil price factors can not drive normally, the actual production still can not meet the market demand。The pollution problem of the calcium carbide process route that has been plaguing domestic PVC production has also been gradually solved, and its cost advantage is becoming more and more obvious。In the next few years, China's PVC production capacity will be further expanded to meet the market demand for PVC products。
Caustic soda industry capacity and output will still maintain a rapid expansion rate, but the growth of demand and the domestic market saturation, the international market caustic soda prices rise, we believe that China will continue to increase exports in the next few years, transfer the contradiction between domestic supply and demand。With the development of the economy, downstream consumption continues to grow, the three major industries of light industry, chemical industry and textile industry annual consumption of caustic soda accounts for about 79% of the total production, medicine, fine chemical industry and environmental protection and other emerging industries develop rapidly, the demand for caustic soda will continue to increase。
3.Construction scale and product scheme
Construction scale and product plan: 300,000 t/a PVC supporting 300,000 t/a caustic soda。The project covers an area of about 400 mu。
4.Process technology
PVC production route of alkali and calcium carbide by ionic membrane method is adopted。
5.Expected economic benefit analysis
The total investment of this project is about 99 million yuan, and the annual total cost is 200 million yuan。Annual sales revenue: 230 million yuan, annual sales profit: 220 million yuan。