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1)  hot reduction of vacuum Ca
真空钙热还原
2)  vacuum thermal reduction
真空热还原
3)  vacuum-thermal reduction
真空热法还原
1.
In order to effectively utilize the ascharite minerals which contain low grade B2O3,the paper studies the vacuum-thermal reduction of ascharite and deoxygenize magnesia into magnesium with calcium carbide as reductant.
为了解决低品位硼镁石矿的合理利用问题,本试验首次以碳化钙为还原剂,应用真空热法还原原理将煅烧后矿石中的游离氧化镁还原为金属镁。
2.
In order to utilize effectively the ascharite mineral which contain low grade B2O3,the vacuum-thermal reduction of roasted ascharite to deoxygenize magnesia into magnesium with silicon-aluminum alloy as reductant was experimentally investigated.
为了解决低品位硼镁石矿的合理利用问题,首次以硅铝合金为还原剂,应用真空热法还原原理将煅烧后矿石中的游离氧化镁还原为金属镁。
4)  vacuum carbothermal reduction
真空碳热还原
1.
The valuable metals such as antimony and lead from the acidic leaching residues were recoveried by vacuum carbothermal reduction.
以含锑铅复杂氧化物的酸浸渣为原料,采用真空碳热还原方法回收了渣中的锑铅等有价金属。
2.
Toxic characteristic leaching procedure(TCLP) and sequential extraction procedure(SEP) were used to analyze the environmental risk of lead contained glass of cathode ray tube(CRT),toxil heavy metal and other metal were recycled by vacuum carbothermal reduction technique.
用毒性浸出程序和多级提取程序分析了阴极射线管含铅玻璃的环境风险,并用真空碳热还原技术回收含铅玻璃的有毒重金属及其它有价金属。
5)  calcium thermic reduction
钙热还原
6)  Vacuum reduction
真空还原
补充资料:钙热还原
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性质:是以四氟化铀为原料工业生产金属铀的一种主要方法。以高纯金属钙作还原剂,在高温下将四氟化铀还原为金属铀。这是一个强放热反应,反应最高温度可达2000℃左右。金属铀和氟化钙渣均熔化呈液态,并借助于两者的密度差而澄清分层,金属铀聚集于熔融氟化钙渣的下方。钙热还原可以在敞开式的还原竖炉中进行,以耐热的石墨作炉衬。

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