raw copper

High quality copper cathode should be chosen and all the raw or assistant materials should be dried or warmed, meanwhile the melting furnace, holding furnace and launder should be protected and deoxidized in order to protect the melting copper from oxidizing and air suction.

生产中应选择优质电解铜原料，并对一切与铜液接触的原辅材料和器具进行干燥或烘烤，同时应对熔化炉、保温炉、流槽进行覆盖保护和还原处理，以防止氧化和吸气。

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Next, China strives to lock up supplies of essential raw materials: oil, natural gas, copper.

其次, 中国极力锁定石油 、 天然气 、 铜等重要原材料的供应.

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Abstract The barium hydroxide was produced by the reaction of raw material barium sulfide with the copper oxide in water.

以硫化钡为原料，在水溶液中与氧化铜反应，生成氢氧化钡。

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Copper-loaded montmorillonite was prepared using montmorillonite and copper sulphate as raw materials.

以蒙脱石和硫酸铜为主要原料,制备载铜蒙脱石.

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Comprehensive Recovery of Iron Raw Materials Contenting Sulphur in Copper Residue

选铜尾矿中高硫铁资源的综合回收

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Agnes: Well, so long , copper . Wish me luck. I a raw deal.

安格尼兹: 好了, 就这样吧,警察. 祝我好运. 我的事挺麻烦.

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