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科技攻关破瓶颈 黄金冶炼公司“银粉酸洗法”增产增效
宣布日期:2022.09.02
克日,,,,bevictor伟德官网冶炼公司“银粉酸洗法”工艺落地,,,,解决了1#国标白银生产工艺重大、能耗高、耗时长等问题,,,,进一步提高银粉及格率,,,,取得显著经济效益。。。

恒久以来,,,,湿法冶炼所使用的金泥中含有大宗的铜、铅等杂质元素,,,,在后续的电解历程中,,,,铜、铅杂质一直消融进入电解液,,,,并随阴极银的析出而析出,,,,部分铜、铅离子会水解沉淀进入银粉,,,,这些残留的铜、铅杂质会导致熔铸银只切合2#白银标准,,,,需要返回流程重新电解才华产出1#国标白银。。。

白银电解是一个耗能大户,,,,不但需要班组抽出职员专门看守电解电流、电压,,,,还要实时监测电解液的酸性,,,,需要一直靠近4m³电解液,,,,导致生产本钱大幅增添,,,,平均生产周期延伸4-5个工序,,,,造成大宗白银积压,,,,既影响了金属平衡,,,,大宗消耗的电力、人力、药剂等资源也倒运于车间的效益提升。。。
为解决这一痛点,,,,黄金冶炼公司组织科研攻关组举行重点攻关,,,,经由2个月的重复研究和探索,,,,提出了“银粉酸洗法”,,,,即使用车间现有的钛反映釜,,,,加入一定比例氯酸钠和银粉、盐酸举行调制,,,,因银粉比外貌积较大,,,,银粉中铜、铅等杂质仅低于2#银标准些许,,,,相对含量很低,,,,可精准地将银粉中大部分的铜、铅等杂质氧化消融而除去,,,,同时抵达了对溶液电位准确控制的目的,,,,因氯酸钠浓度较低,,,,氧化电位低,,,,约为600mv,,,,而铜、铅的氧化电位为350mv和-127mv,,,,该要领又可精准的保存银粉单质,,,,直接将2#银粉转化为国标1#银粉。。。

该要领投用后,,,,既缩短了白银电解精炼生产周期,,,,大幅镌汰白银积压,,,,同时节约了药剂、能源和人力消耗,,,,年爆发经济效益约40余万元。。。