The key to the development of Chloro-aromatics from Chlor-alkali

China has become the world's largest producer of chlorinated aromatics in recent years, with significant growth in production capacity and output. However, the industry now faces a severe overcapacity issue, with many major products operating at a loss due to low equipment utilization. To ensure sustainable development, China must avoid redundant construction, accelerate technological upgrades, and improve safety management. At the same time, an integrated upstream-downstream strategy should be implemented to extend the product chain and enhance vertical integration. As of June 2006, China’s annual production capacity for key chlorinated aromatic hydrocarbons included chlorobenzene (500,000 tons), p-nitrochlorobenzene (333,000 tons), o-nitrochlorobenzene (167,000 tons), p-dichlorobenzene (58,000 tons), o-dichlorobenzene (27,000 tons), p-chlorotoluene (68,000 tons), and o-chlorotoluene (68,000 tons). These figures represent substantial growth compared to 2001, with increases of up to 467%. The global market share for these seven major products was significant, with some reaching over 68% of total global capacity. Despite this rapid expansion, by 2005, oversupply began to affect the market, leading to falling prices and weak demand. In 2006, even as raw material costs rose, prices for most chlorinated aromatics continued to decline. For example, the price of chlorobenzene dropped by 12.8%, while o-dichlorobenzene fell by as much as 34.5%. With prices nearing cost levels, profit margins were severely compressed, and production facilities struggled to remain profitable. To address these challenges, future development should focus on integrating with chlor-alkali plants and expanding into fine chemical product chains. Currently, many facilities lack upstream integration, increasing dependency on external suppliers and raising production costs. Additionally, most companies have limited downstream product development, relying heavily on international markets. For instance, nearly 50% of dichlorobenzene and 70% of o-chlorotoluene were exported in 2005. Moving forward, the industry should adopt successful models from both domestic and international examples, building comprehensive and sustainable product chains. Emphasizing cleaner production is also crucial, as environmental regulations have increasingly impacted operations. By improving technology and reducing pollution, the sector can maintain competitiveness and expand into new markets. Finally, exploring new applications for key products like dichlorobenzene and o-chlorotoluene will help reduce reliance on foreign markets and support long-term growth.

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