Because the PVC market downturn, in recent years, domestic chlor-alkali enterprises are looking for alternatives to PVC the chlorine consumption of downstream products. Use off-the-shelf acetylene equipment to occurrence and development of high-intensity, tetrachloroethylene project, choice for many enterprises, projects are built. However, at present, chemical, tetrachloroethylene has severe overcapacity, while new annual production capacity up to 350000 tons this year, the author suggested that enterprises face up to reality, avoid by all means is blind again on the new project. As the consumption of chlorine products widely used trichloroethylene and tetrachloroethylene. In recent years, due to the product technical process is simple, less investment, starting in 2007, many domestic enterprises are on the project, domestic trichloroethylene, tetrachloroethylene, increasing production capacity. Trichloroethylene has 13 production enterprises, the whole country at present actual annual production capacity reached 600000 tons. Is expected by the end of 2012 three vinyl chloride production capacity will reach 740000 tons, and demand is only 250000 ~ 250000 tons; Tetrachloroethylene actual capacity in 200000 tons, the demand is less than 100000 tons, the market is facing severe oversupply situation. Chemical, tetrachloroethylene now market price has fallen to the bottom, the selling price, no profit. Is the height of trichloroethylene market in 2010, the highest price reached 10500 yuan per ton. But with the increasing capacity of, since the second half of 2011, trichloroethylene, severe overcapacity prices plummeting, fell to the current 4500 yuan per ton. Also, pce price has dropped since the second half of 2011. With the advent of the refrigerant industry busy season, and the influence of downstream enterprise expansion, tetrachloroethylene demand will increase, but the price also won\'t have big gains. For to increase the capacity of market, domestic chemical, tetrachloroethylene in meet the domestic demand is bound to participate in international competition at the same time, exports to the United States, Russia, Europe and other countries. High-intensity relevant statistics show that since 2008, the export of tetrachloroethylene all showed a trend of rising year by year, while imports declined year by year. Estimated in the future as domestic capacity continues to increase, the enterprise will take export as a primary goal, but for easing overcapacity will play a significant role. And expand international market share of the premise condition that product quality has increased, so the manufacturing enterprises should be more involved to improve the product quality, improve market competitiveness. Become choose chlorine consumption product project in chlor-alkali enterprises were concerns, companies from product market prospects, technical and cost aspects of analysis, don\'t follow suit on. (source: China chemical industry news, author: XieXiaoRu)