Daqo New Energy Expanding Solar Polysilicon Production With Hydrochlorination Tech


Daqo New Energy Corp., a polysilicon manufacturer based in China, plans to adopt hydrochlorination technology for the conversion of silicon tetrachloride into trichlorosilane (TCS) at its Wanzhou polysilicon manufacturing facility.

The adoption of the hydrochlorination technology is expected to increase the annual TCS production capability in the company's Wanzhou facility to 220,000 metric tons (MT). In the meantime, the company will retrofit its current hydrogenation furnaces into TCS deposition furnaces.

The technology implementation project is scheduled to begin in October, with targeted mechanical completion in the third quarter of 2012. When this project is completed, the company will expand its annual polysilicon manufacturing capacity from the current 4,300 MT to 9,000 MT.

The total capital expenditure for the project is expected to be approximately $135 million.

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