著者

四元 弘毅 各務 泰道 伊藤 信一 坂本 宏

出版者

The Resources Processing Society of Japan

雑誌

資源処理技術 (ISSN:09124764)

巻号頁・発行日

vol.37, no.1, pp.3-8, 1990-04-30 (Released:2009-09-04)

参考文献数

8

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The effect of heat pre-treatment in the crushing of granite was investigated. The reduction of crushing energy was found to greatly depend on the prodcut size of granite as well as on the temperature of heat treatment. The magnetization of mica was also observed to increase by the heat treatment.Mica was recovered by first-stage magnetic separtion up to 98% by weight. In order to find one of the possible uses of mica, its aptitude as a filler for resings was examined. Mica was mixed with polyvinylchloride and the mechanical strength of the mixture was measred. As a result, mica showed almost the same reinforcing effect as talc which was popular filler for resins.