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发明公开
CN106082302A 一种由氧化铜直接制备氯化亚铜的方法 无效 - 撤回

一种由氧化铜直接制备氯化亚铜的方法
摘要：
本发明公开了一种由氧化铜直接制备氯化亚铜的方法，其步骤为：(1).称取氧化铜粉末与粒径为74um‑280um的氯化铵粉末，将氧化铜粉末与细磨后的氯化铵粉末按照质量比为1：2混合，混合均匀，得到混合后的物料；(2).将混合后的物料置于坩埚内密封后，放入电阻炉中在温度为300‑400 oC焙烧1‑3 h；(3).待焙烧后的物料冷却至室温，研磨成粉，加水溶解后，除杂、清洗，得到清洗后的物料；(4).对清洗后的物料再用无水乙醇清洗两次，再加热蒸发，回收乙醇溶剂，析出的固体，得到氯化亚铜粉末。该方法采用氧化铜粉末或氧化铜矿经氨气络合蒸发得到的氧化铜粉，收率高，成本低，添加剂廉价易得，其他副反应物在该焙烧温度下被分解或者被抑制，反应过程中氨气得到循环利用。
摘要（英）：

The invention discloses a method for directly preparing cuprous chloride from copper oxide. The method comprises the following steps: (1) weighing copper oxide powder and ammonium chloride powder with a particle size of 74 to 280 [mu]m, and uniformly mixing the copper oxide powder and finely ground ammonium chloride powder according to a mass ratio of 1: 2 under stirring so as to obtain a mixed material; (2) sealing the mixed material in a crucible, placing the crucible into an electric-resistance furnace and carrying out roasting at a temperature of 300 to 400 DEG C for 1 to 3 h; (3) after cooling a roasted material to room temperature, grinding the roasted material into powder, dissolving the powder in water and carrying out impurity removal and cleaning so as to obtain a cleaned material; and (4) washing the cleaned material with absolute ethyl alcohol twice, carrying out heating and evaporation and recovering the ethanol solvent, wherein a precipitated solid is cuprous chloride powder. The method employs the copper oxide powder or copper oxide powder obtained after ammonia gas complexation and evaporation of copper oxide ore; yield is high; cost is low; additives are cheap and easily available; other by-reactants are decomposed or inhibited at the roasting temperature; and ammonia gas in the reaction process is recycled.

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