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目前,对硅线石族矿物的需求状况是:在该矿物的发现地需求量最大。蓝晶石和烧结莫来石在北美生产最多,使用量也最大,而红柱石是在欧洲和南非。2001年,世界(不包括中国)红柱石的使用量为23万t,欧洲占14万t,南非约占4.5万t,亚洲和中东约占4万t,而美国的使用量仅为0.5万t。亚太地区
At present, the demand for sillimanite minerals is the highest in demand at the discovery of the mineral. Kyanite and sintered mullite are the most produced and used in North America, with andalus in Europe and South Africa. In 2001, the world (excluding China) andalusite was 230,000 tons, Europe 140,000 tons, South Africa 45,000 tons, Asia and Middle East 40,000 tons, while the United States used only 5,000 t. Asia-Pacific