Daqo New Energy to double polysilicon capacity at Wanzhou plant
Aug 29, 2011 - Chinese polysilicon producer Daqo New Energy Corp (NYSE:DQ) unveiled last week a plan to more than double the polysilicon capacity of its factory in Wanzhou through the adoption of a new production technology.
The USD-135-million (EUR 93m) project is to bolster the plant's polysilicon capacity to 9,000 tonnes from 4,300 tonnes at present.
Daqo intends to adopt hydrochlorination technology for the conversion of silicon tetrachloride (STC) into trichlorosilane (TCS). The move will increase the factory's TCS production capability to 220,000 tonnes a year. The company will also retrofit its hydrogenation furnaces into TCS deposition ones.
Work on the project is planned to start in October this year and to be completed in the third quarter of 2012, Daqo said.