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Production Of Pure Powder Of Iron And Copper

今欲制铁铜纯粉,其法如下:
先取铁石与铜矿石,择其精者,去其杂质。置铁石于炉中,以炭燃之,鼓风助燃,使石中杂质化气而逸,铁则熔为流液。待其稍冷,冷凝成块,捶打之,复烧再捶,如此数回,杂质尽去,得纯铁。
至于制铜粉,取铜矿石磨碎,以水淘洗,去其粗粒与泥沙。然后入釜,加药煮之,药与矿中杂质相化,铜质渐纯。待其冷却,研为粉末。
又可于铁之熔液中,依一定之量,添入精炼之铜粉,搅拌均匀,使二者相混,再冷凝之,后研磨成粉,可得铁铜混合之纯粉,以备诸般之用。



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