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氰化物消耗
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  cyanide consumption
     This paper makes an introduction to the experiment and practice of the change from one-stage to two-stage grinding and the use of tower grinding-leaching mill to raise ore-grinding fineness ,lower cyanide consumption and improve gold leaching rate in cyanide plant.
     介绍了某氰化厂增加二段磨矿作业并采用塔式磨浸机提高矿石磨矿细度、降低氰化物消耗、提高金浸出率的试验研究与生产实践。
短句来源
     Through project research on the old production process,stressing on production management,innovation to the process was made,thus cyanide consumption has been effectively decreased and production cost brought down,so that economic and social benefits have been achieved.
     通过采取进行与生产同步试验研究、强化生产过程管理、科学改进工艺流程等措施 ,有效地降低了氰化过程中的氰化物消耗 ,降低了生产成本 ,使经济效益和社会效益显著。
短句来源
  “氰化物消耗”译为未确定词的双语例句
     In the process of Au &Ag leaching by cyaniding method,through examin ating and comparatively analysing the effect on the cyaniding method by the oxid ants such as H2O2、CaO2、CaClO3、BaO2 and KMnO4,we obtaind the best oxidant BaO 2 which separates stably, uses up less cyanide and best promotes dissolution and thus a qualified oxidant is availble for bold ore which is difficult to leach.
     通过对氰化法浸取金、银过程中,氧化剂H2O3、CaO2、CaClO3、BaO2、KMnO4等对其影响的考察与对比,选择出一种分解放氧缓慢稳定,氰化物消耗较少,促进溶解效果最好的氧化剂BaO2,为难浸金矿石选择合适的氧化剂提供了参考。
短句来源
     Based on the geography position of the place and the characteristics of certain gold oxide ore, if we adobt the craft of the conventional leaching,after a 16 hours leaching,the rate of leaching can attain 95%, the sodium cyanide is consumed for the 2.03 kg/t.
     针对某氧化金矿石的特性及所处地理位置,若采用常规氰化浸出工艺,浸出16h后,金的浸出率才能达到 95%,氰化物消耗为2.03kg/t。
短句来源
     Through investigation and contrast of the influence of oxidants as H_2O_2,CaO_2,CaClO_3,BaO_2,KMnO_4 etc on cyanide leaching of gold or silver,the oxidant BaO_2 which decomposes and emits oxygen slow and stably,consumes less cyanide and promotes dissolution best is opted. This furnishes reference for the selection of proper oxidant for cyanide leaching of refractory gold ores. 
     通过对氰化法浸取金、银过程中,氧化剂H2O2、CaO2、CaClO3、BaO2、KMnO4等对其影响的考察与对比,选择出一种分解放氧缓慢稳定、氰化物消耗较少、促进溶解效果最好的氧化剂BaO2,为难浸金矿石选择合适的氧化剂提供了参考。
短句来源
     The rich oxygen CIL technology used in gold extraction of the expansion project of Hademen Gold Mine With this technology,without increasing the leaching equipments,the production capacity is increased from 300t/d to 600t/d; leaching time shortened from 30h to 15h;
     介绍了富氧炭浸提金工艺在哈德门金矿二期扩建工程中的应用。 在不增加浸出设备的前提下,生产能力由一期的300t/d提高到600t/d,浸出时间由30h缩短为15h,氰化物消耗下降,而富氧前后浸出率相当;
短句来源
     Following acidification-precipitation-alkaline neutralization,put all the waste water to cyclic use. By doing so,it offered fine technical conditions to cyanide process,made the valued metals recovered and the consumption of cyanide lowered,brought the zero discharge of cyanide bearing waste water into being and obtained much better social and economic benefit.
     氰化污水零排放工艺的研究结果表明 ,酸化—沉淀—碱中和后废水全循环为氰化工艺提供了良好的技术条件 ,同时可回收有价金属 ,降低氰化物消耗 ,实现含氰废水零排放 ,并取得了较好的经济效益和社会效益
短句来源
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  相似匹配句对
     Flow Injection Analysis of Cyanide
     氰化物的流动注射分析
短句来源
     Biodegradation of cyanides by microorganism
     微生物降解氰化物
短句来源
     Innovation for reduction of consumption
     实施技改 降低消耗
短句来源
     Third, resources are consumed low;
     三是资源消耗低;
短句来源
     Reduction of cyanide consumption in gold production
     降低氰化物消耗的生产实践
短句来源
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  cyanide consumption
When cyaniding easily soluble copper content (wE(Cu)) lies in the range of 0-0.25%, it linearly affects gold cyanidation recovery (R) as well as cyanide consumption (mc).
      
Compared with traditional leaching technology, it can reduce leaching time, avoid complex filter process, decrease sodium cyanide consumption and increase leaching rate of gold by 35%.
      
Cyanide consumption was substantially reduced when process water was used, indicating that using process water is feasible.
      
The actual cyanide consumption at a heap leach operation will be no more than one third the rate indicated by column leach tests.
      
Under these conditions, growth lags somewhat behind cyanide consumption, which allows us to infer the involvement of several biochemical events.
      


There are ab abundant deposits of refractory gold ores in China,but few

本文报道了用氧化亚铁硫杆菌(Thiobacillus ferrooxidans)T-3菌株对十多个含砷金(银)矿山精矿氧化除去砷、硫、铁及对其中4个矿山氧化处理后精矿氰化浸金试验结果。结果表明,该菌株能强烈氧化毒砂,但来源不同,氧化速度和程度不同。细菌氧化含砷硫化物的程度,受生物学和矿物学两方面因素的影响。经细菌氧化处理后的金精矿,氰化浸金均可获得≥90%的浸金率。达此浸金率,对有的金矿含砷硫化物需充分氧化,有的只要求局部氧化即可。然而,存在着氰化物消耗多的问题,必须在氰化前对氧化后金精矿加碱充气预处理,才能使氰化物用量降至8kg/t 精矿以下。

It is necessary to have an alkali leaching in advance or proper controlling of the density of CaO when extracting gold especially from high sulfur-containing gold ores by cyanide process. Calcium oxide is not only capable of protecting alkali, but also able to control the consumption of cyanide resulted from Cu2+, Fe3+, speed up flocculating settling of fine grained minerals, improve technological condition in the course of cyanidation, boost gold reco-very, lower the consumption of sodium cyanide and benefit...

It is necessary to have an alkali leaching in advance or proper controlling of the density of CaO when extracting gold especially from high sulfur-containing gold ores by cyanide process. Calcium oxide is not only capable of protecting alkali, but also able to control the consumption of cyanide resulted from Cu2+, Fe3+, speed up flocculating settling of fine grained minerals, improve technological condition in the course of cyanidation, boost gold reco-very, lower the consumption of sodium cyanide and benefit the washing and replacing

在氰化物提金中,特别是对硫化物成分多、含量高的矿石,预先进行碱浸或适当控制CaO的浓度是必要的。浸出时,氧化钙不仅起保护碱的作用,还能同时抑制Cu~(2+)、Fe~(3+)等离子对氰化物的消耗,并且对矿物微细颗粒起絮凝加速沉降的作用,可以改善氰化过程的工艺条件,提高金的回收率,降低氰化钠的消耗,利于洗涤和置换。

According to some experiment work,the stability of H2O2 and CaO2,as a kind of leaching assistant agent,the oxygen liberating rules of peroxide in pure water or pulp,the catalyzed and decomposed effect by pyrite and detoxification of peroxide .and leaching assistant results of peroxide are studied and compared. It is shown that oxygen liberating rate of CaO2 is slower and more stable than that of H2O2. CaO2 can keep slightly higher dissolved oxygen than H2JO2 in the leaching pulp of tested ore and the catalyzed...

According to some experiment work,the stability of H2O2 and CaO2,as a kind of leaching assistant agent,the oxygen liberating rules of peroxide in pure water or pulp,the catalyzed and decomposed effect by pyrite and detoxification of peroxide .and leaching assistant results of peroxide are studied and compared. It is shown that oxygen liberating rate of CaO2 is slower and more stable than that of H2O2. CaO2 can keep slightly higher dissolved oxygen than H2JO2 in the leaching pulp of tested ore and the catalyzed and decomposed effect of CaO2 with the addition of pyrite is much weaker than that of H2O2. On the other hand.the detoxification of CaO2 is slightly weaker than that of H2O2 in the alkaline range of pH≥11,but when the concentration of H2O2 is lower than 0. 5%,the detoxification of CaO2 is slightly stronger than that of H2O2 Two pieces of ore from cyanide leaching are tested,it is shown that CaO2 can reduce much more cyanide Consumption than H2O2 for the gold concentrate (the content of sulphur is high)cyanidation stage. on the contrary,H2O2, can reduce much more cyanide consumption than CaO2 for the ore (the content of sulphur is low)cyanidation stage. For the high sulphur containing gold concentrate and the low sulphur containing ore,CaO2 is more adventageous and suitable to improve the leaching rate and result than H2O2.

结合作者的试验工作,对H2O2和CaO2作为助浸剂的稳定性:在水中及矿浆中的放氧规律、呈黄铁矿催化分解情况、氧化及消耗氰化物的能力以及对特定矿石的助浸效果等进行了对比.发现在适宜浸出的pH值下(pH≥11),CaO2比H2O2具有缓慢稳定的放氧特性.在试验矿石的浸出矿浆中CaO2能够保持比H2O2略高的溶氧量.CaO2受黄铁矿的催化分解作用也远比H2O2为小.在pH≥11的范围内CaO2氧化CN-(去毒)作用小于H2O2;在H2O2浓度=0.5%的低浓度下,CaO2氧化CN-的作用也比H2O2弱,而仅在H2O2=0.1%时,CaO2:氧化CN-的能力比H2O2稍强.在两种不同矿样的浸出试验中对含硫高的金精矿助浸,CaO2比H2O2更能节省氰化物的消耗而在含硫低的原矿石的浸出中、正好相反,CaO2会比H2O2消耗更多的氰化物.无论对含硫高的金精矿还是对含硫低的原矿石,在提高浸出速度和浸出率方面,CaO2都显示出比H2O2更佳的效果.

 
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