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- soil copper concentration 土壤铜含量
- If i. E. SAC305 is used the volume compensation of the solder pot should be done with SAC300 (without copper) in order to maintain a constant Copper concentration. 如果使用了SAC305等,应使用SAC300(不含铜)进行焊料槽的体积补偿以保持恒定的铜浓度。
- Top-Blown Oxygen Converter's Autogenous Smelting of Secondary Copper Concentrate. 氧气顶吹自热炉吃吹练二次铜精矿
- Handling of anode slime produced from primary copper concentrate and secondary copper concentrate in Jinchuan Group Co. 论金川集团有限公司原生铜精矿及二次铜精矿所产阳极泥处理工艺。
- The oxygen autogenous smelting process of nickeliferous copper concentrate from Jinchuan Nonferrous Corp. 结果表明,含镍铜精矿自热熔炼,可实现除铁、脱硫、保镍,生产含铜90%25的粗铜,并减少镍的循环。
- Arsenic in a copper concentrate can be rapidly determined by atomic fluorescenc, accompanied with less interference from base copper. 摘要用原子荧光光谱法可快速测定铜矿样中的砷,且基体铜干扰小。
- The oxygen autogenous smelting process of nickeliferous copper concentrate from Jinchuan Nonferrous Corp. is thermodynamically analyzed. 对金川二次铜精矿氧气自热熔炼过程进行热力学分析。
- The design and innovation of airtig ht blast furnace which used to smelt s econdary copper concentrate were intro duced. 介绍了何谓二次铜精矿及其冶炼工艺流程中密闭鼓风炉的设计及创新。
- Investigation of Sanitary Standard of Soil Copper in Field 土壤铜卫生标准的现场调查
- Firstly,qualified copper concentrate was obtained by flotation,secondly,copper remained in both middlings and tailings was recovered by hydrometallurgical technology. 结果表明,采用先除杂再浮选铜的方法得到一部分合格铜精矿,中矿及尾矿应用湿法冶金方法回收其中的铜,可取得较理想的技术指标。
- How to determinate the content of gold and silver in non-floatation copper concentrates quickly and exactly by fire-assaying methods will be found in this article. 文中对火试金方法快速准确分析非浮选铜精矿中金和银量的各种条件进行了分析。
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么?
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- When the crude ore contains copper 1.84%, the technical indexes such as the grade of copper concentrate 22.37% and the recovery 78.70% are obtained by use of single-stage grinding, one time of roughing, three times of scavenging and two times of cleaning. 当原矿含铜1.;84%25时,经过一段磨矿、一次粗选、三次扫选和二次精选,获得铜精矿品位22
- Water has permeated (through) the soil. 水已渗遍那片土壤。
- The result of tests show that the grade of copper concentrate and the copper recovery are 18.04% and 45.60% by adopting a circuit of one rough floatation,one scavenger and one concentrating. 试验结果表明;采用一次粗选、一次扫选和一次精选的浮选流程;可获得铜精矿品位为18.;04%25、回收率为45
- There are some clods of soil on the mat. 垫子上有些土块。
- The earth in the garden is good, soft soil. 花园里的泥土松软肥沃。
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