加拿大北美TiO_2公司投资7700万英磅在魁北克省建设一个新的钛白粉矿。该厂是利用氯化工艺流程生产线生产钛白粉,年生产能力6万t;将于1994年投产。据报导,由于氯化工艺生产钛白粉使用的化学药剂可循环使用,因而环境污染问题远比硫酸工艺轻,而硫酸工 Canada, North America, TiO_2 invested 77 million pounds in the construction of a new titanium dioxide mine in Quebec. The plant is the use of chlorinated process production line production of titanium dioxide, the annual production capacity of 60,000 t; will be put into operation in 1994. It is reported that due to the chlorination process used in the production of titanium dioxide chemicals can be recycled, so the problem of environmental pollution than sulfuric acid light, and sulfuric acid