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molybdenum recovery
相关语句
  钼回收
     Study on The New Process of Molybdenum Recovery from Waste Co-Mo Catalyst
     钴—钼废催化剂钼回收新工艺
短句来源
     Molybdenum Recovery from Wastes of Ammonium Molybdate Production
     钼酸铵生产系统三废治理过程中的钼回收
短句来源
  回收钼
     NEW TECHNIQUE FOR MOLYBDENUM RECOVERY FROM SPENT CATALYSTS
     从废催化剂中回收钼生产新工艺的研究
短句来源
     A new process for molybdenum recovery from spent catalysts has been studied,which includes the roasting with sodiun carbonate first and then the leaching with hot water.
     研究了从废催化剂中回收钼的新工艺,首先采用碳酸钠焙烧,再用热水浸取。
短句来源
  钼回收率
     Molybdenum recovery raised 3.43%,and the total mineral processing efficiency raised 1.77% in close circuit test.
     闭路试验时 ,钼回收率提高了 3 .4 3 % ,总的选矿效率提高了 1.77%。
短句来源
     Baihualing molybdenum ore dressing plant under the leadership of Jinduicheng Molybdenum Ore Company is the biggest one among plants of the same kind in China as well as in Asia. Technical improvements in recent years in the ways of equipment renewal and optimization of technological parameters have increased the molybdenum recovery by 2 26%,the concentrate grade from 50 75% to 52 45%(maximum 54%)which means a world level quality.
     通过对钼精选系统工艺实施设备换型和优化工艺参数等方面的技术改造 ,提高钼回收率2 2 6个百分点 ,钼精矿品位由 5 0 75 %平均提高到 5 2 45 % (最高Mo≥ 5 4% )。
短句来源
  “molybdenum recovery”译为未确定词的双语例句
     MEASURES TO IMPROVE PERCENT OF PASS OF MOLYBDENITE CONCENTRATE'S OXIDIZING ROAST AND MOLYBDENUM RECOVERY
     提高钼精矿氧化焙烧合格率及钼收得率的几点措施
短句来源
     The technology of molybdenum recovery by the low concentration sodium hypochlorite leaching process from the low grade molybdenite is feasible,the molybdenum can be effectively leached under condition of leaching solution pH = 9~11 and the appropriate sodium hypochlorite concentration(the valid chlorine concentration 15g/L).
     低浓度次氯酸钠(NaClO)氧化浸出工艺回收低品位辉钼矿的钼是可行的。 保持浸液pH=9-11,有效氯浓度15g/L的NaClO能有效浸出钼。
短句来源
     Study on Process of Molybdenum Recovery from Waste Hydrogenation Catalyst
     含钼加氢精制废催化剂中金属钼的回收工艺研究
短句来源
     RAISE RATE OF MOLYBDENUM RECOVERY IN LUANCHUAN AREA
     提高栾川地区钼选矿回收率
短句来源
     Industrial smelting test showed that a burden mixture (concentrate:residue=4:1) was roasted for desulphuration in a rotatary kiln with external heating and was suitable for ferromolybdetium smelting. Quality of the product can attained the national standard and export standard. The molybdenum recovery reached to normal level and the cost of production decreased by 700 Yan RMB/t.
     按钼精矿∶钼渣=4∶1的搭配比例进行的工业性试验表明,混合料在外加热回转窑中脱硫焙烧,熟料用以冶炼钼铁,其质量达到国家标准和出口标准,回收率达到正常料的水平,可使钼铁生产成本下降700元/吨左右。
短句来源
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  molybdenum recovery
The feasibility of reductive precipitation of molybdenum oxides for molybdenum recovery from hypochlorite leach solutions has been investigated.
      
Molybdenum recovery above 99 pct at a chlorine utilization efficiency of 84 pct has been achieved for a fluidizing gas flow-rate of 3 L/min of the gases Cl2, O2, and N2 mixed in the proportion of 2∶5∶23, respectively, at 300 °C.
      
The feasibility of reductive precipitation of molybdenum oxides for molybdenum recovery from hypochlorite leach solutions has been investigated.
      
Neutron activation analysis was used to determine (1) the efficiency of molybdenum recovery and (2) the decontamination factor of numerous fission product elements from the molybdenum product.
      


China is known for its richness in metallic ore resources with almost all varie-ties,having a long history of mining activities.Throughput has been constantly incre-asing,while technology improving.Despite of the raw ore grade decreasing,recoveries of main metals have beenraising and kinds as well as the output of by-products expanding.The present paperdescribes the progress in grinding,classification and in the beneficiation of tungsten,tin,complex sulphides,copper,molybdenum,nickel,precious metals...

China is known for its richness in metallic ore resources with almost all varie-ties,having a long history of mining activities.Throughput has been constantly incre-asing,while technology improving.Despite of the raw ore grade decreasing,recoveries of main metals have beenraising and kinds as well as the output of by-products expanding.The present paperdescribes the progress in grinding,classification and in the beneficiation of tungsten,tin,complex sulphides,copper,molybdenum,nickel,precious metals and iron ores.GRINDING AND CLASSIFICATION Autogenous and semi-autogenous mills havebeen increasingly used,especially in iron concentrators.In some plants,magneticpulleies are used to discard wastes from autogenous mill discharges.Comparing withball mills,the consumption of grinding media has been reduced by 40% in plant usingrod-pebble mills.The fine screening with rappers has been widely adopted in magnetiteplants for upgrading concentrates.In some plants,hydrocyclones have been replacedby F.S.R.unites as classifiers.TUNGSTEN AND TIN Although multistage grinding and gravity separation aremainly applied to the beneficiation of such ores,combined flowsheets of gravity,magnetic separstion and flotation are also used.In the treatment of ore slimes,gravitymethod with centifugal separators for roughing followed by vanners for cleaning issuccessfully adopted;flotation and combined processes of gravity separation and flota-tion have been increasingly used;rock-shaking vanners are also introduced.Progress,in the concentration of tungsten ore slime,has been made by way of high intensitymagnetic separation followed by flotation.The methods of cleaning rougher concentra-tes comprise gravity,magnetic,electrostatic separation,table flotation and flotation aswell as combined processes of beneficiation and metallurgy.Some concentrators treatingrefractory cassiterite ores produce,in addition to final tin concentrates,low gradesemi-products for further treatment with special metallurgical processes.COMPLEX SULPHIDES In respect of the methods of separation,many a cyanide-free and dichromate-free separation methods have been developed,resulting in impro-vements of separation efficiency;reduction of environmental pollution and increasingrecovery of precious metals;and solution of the problems associated with separationof some complex sulphide ores,containing a large amount of secondary copper mine-rals.In addition,the electroflotation technique has been introduced in a lead-zincconcentrator,resulting in saving regulators and depressors.As concerns the flotationflowsheet,“equi-flotability” has been widely used. COPPER A number of effective flotation reagents have been utilized.Flotationcolumns have been used for more than 20 years,and a new type annular-ejectingflotation machine has also been put into operation.With respect to the recovery ofrefractory oxidized ores,both the single stage segregation with direct heatingand the leaching-extraction-electrowinning processes are in operation.Some othermethods have also been investigated with better results,such as,pressure ammoniacalleaching,pressure ammoniacal leaching with sulphur precipitation-flotation,pressuresulphidization-flotation and leaching-precipitation-carrier flotation.MOLYBDENUM,NICKEL AND PRECIOUS METALS The flotation flowsheet ofmolybdenite trends towards open circuit,i.e.discarding final tailings in cleaningstages.Furthermore,some concentrators also produce middlings for further treatmentwith hydrometallurgy.Heavier wax and combined collectors are adopted in someconcentrators,improving molybdenum recoveries.In a certain plant dealing with difficult nickel ores,flotation-desliming-magneticseparation-flotation flowsheet has been used instead of single flotation.Recoveringcobalt alloy from converter slags and separating richer precious metal alloy fromnickel matt with ore dressing methods have been put into practice.Extracting gold with thiourea has been investigated in commercial scale test withbetter results achieved.Recovering precious metals from anode slime and leachingresidues

我国金属矿资源丰富,矿种齐全,开采量与日俱增,生产技术不断改进。本文概述了磨矿、分级;钨锡矿的预选、重选、矿泥处理、精选;铜铅锌多金属硫化矿的分选方法、流程;铜矿的工艺、药剂、浮选设备,选冶联合流程;钼、镍、金银和贫赤铁矿选矿等方面的进展

Leaching residue of ammonium molybdate is a cheap molybdenum bearing material (Mo 14%). Industrial smelting test showed that a burden mixture (concentrate:residue=4:1) was roasted for desulphuration in a rotatary kiln with external heating and was suitable for ferromolybdetium smelting. Quality of the product can attained the national standard and export standard. The molybdenum recovery reached to normal level and the cost of production decreased by 700 Yan RMB/t.

钼酸铵浸出渣(以下简称钼渣)是廉价的含钼原料(含钼14%左右)。按钼精矿∶钼渣=4∶1的搭配比例进行的工业性试验表明,混合料在外加热回转窑中脱硫焙烧,熟料用以冶炼钼铁,其质量达到国家标准和出口标准,回收率达到正常料的水平,可使钼铁生产成本下降700元/吨左右。

Abstract The paper belongs to summary. The improvement measure is presented to increase percent of pass of molybdenite concentrate's oxidizing roast and molybdenum recovery.

本文系生产经验总结,就钼精矿的氧化焙烧,提高合格率及钼的收得率提出了几点改进措施。

 
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