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试验室的研究表明,蛇纹石石棉矿石中含有的磁铁矿并不是均匀分布的。含温石棉纤维的矿粒对磁场有反应,含少量或没有温石棉纤维的颗粒基本上是非磁性的。用磁轮处理1/4～5英寸的各种石棉矿样的大规模的试验,证实了磁选可以作为石棉选矿厂的分选步骤。魁北克湖泊石棉公司的黑湖和国家选矿厂已经设置了磁选,使得低品位矿石的开采成为可能,从而延长了矿山的寿命。此外,流程中
Laboratory studies show that the magnetite contained in serpentine asbestos ore is not uniformly distributed. Minerals containing chrysotile fibers react to magnetic fields and particles that contain little or no chrysotile fibers are essentially nonmagnetic. Large-scale tests of magnetic wheels for handling various asbestos samples of ¼ to 5 inches confirmed that magnetic separation can be used as a sorting step for asbestos concentrators. Magna sequestration has been set up at Lake Black Lake and the state concentrator at the Lake Asbestos Company in Quebec, making it possible to mine low-grade ore, thereby extending mine life. In addition, the process