助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   锌铅 在 冶金工业 分类中 的翻译结果: 查询用时:1.655秒
图标索引 在分类学科中查询
所有学科
冶金工业
环境科学与资源利用
化学
矿业工程
无机化工
金属学及金属工艺
预防医学与卫生学
临床医学
地质学
更多类别查询

图标索引 历史查询
 

锌铅    
相关语句
  zinc and lead
    PRESENT SIWATION OF PYROMEYSLLURGY FOR COPPER, ZINC AND LEAD AND ITS PROSPECTS AT THE BEGINNING OF 21 CENTURY
    铜锌铅火法冶金现状及21世纪初展望(续)
短句来源
    REDUCTION KINETICS OF IRON OXIDE IN CARBON-BEARING PELLETS MADE FROM DUSTS CONTAINING ZINC AND LEAD
    含锌铅粉尘配碳球团中氧化铁还原动力学
短句来源
    The pressure acid leaching process of bulk concentrate of zinc and lead is investigated.
    研究锌铅混合精矿加压浸出过程。
短句来源
  zn pb
    The inmetco process is an important method,with which the in plant Zn Pb bearing dust can be treated.
    Inmetco工艺是处理含锌铅钢铁厂粉尘的重要方法。
短句来源
    THE INMETCO PROCESS DEALING WITH THE IN PLANT Zn Pb BEARING DUSTS
    处理含锌铅钢铁厂粉尘的Inmetco工艺
短句来源
  zinc lead
    95% cadmium are approximately recycles from the zinc production process, therefore the cadmium is the zinc lead production sideline product.
    约95%的镉是从锌生产过程中回收的,所以镉是锌铅生产的副产品。
短句来源
  zn-pb
    Studies on Theoretical Principle and Application of Separation of Zn-Pb
    锌铅分离的理论及应用研究
短句来源
    Semi-industrial Study on the Separation of Zn-Pb in the Zn-Pb-containing Dusts Coming from the Steel Plant
    钢铁厂含锌铅粉尘中锌铅分离的半工业试验
短句来源
查询“锌铅”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  zinc and lead
Although the reaction of α,α-dibromo-α-fluorotoluene with zinc and lead involves formation of fluoro(phenyl)carbene, this procedure is not suitable for the synthesis of 2-fluoro-2-phenylaziridines.
      
The Use of the Mortality Rate of Marine Fish Prelarvae for the Estimation of Zinc and Lead Toxicity
      
According to the results of model experiments with artificial contamination of soil, the flux of zinc and lead from the starting point (from a medium loamy leached chernozem) to the final point (wheat grains) sharply decreases.
      
The adsorption of zinc and lead on hair was dependent on the acidity of the hair and/or the medium in which the hair sample was immersed, suggesting that hair is an ion exchanger.
      
Age- and sex-related differences in zinc and lead levels in human hair
      
更多          
  zn pb
Cigaret smoking, despite its relatively low prevalence (19.5%), was associated with lower Zn and higher Cd and Pb concentrations and in lower Zn/Cd and Zn/Pb molar concentration ratios.
      
Smoking frequency appeared to show negative dose-response effects on maternal and neonatal Zn concentrations, Zn/Pb molar concentration ratios, and birth weight.
      
Un grand nombre de minéralisations de Zn(Pb) dans l'Ordovicien présentent un "faciès" de minerai identique mais sont encaissées dans des formations de lithologie variable.
      
Arrens Zn (Pb), Ba Devonian deposit, Pyrénées, France: an exhalative-sedimentary-type deposit similar to Meggen
      
These were an agricultural soil located nearby a Zn/Pb smelter and two soils from a steel metallurgical (siderurgy) waste land.
      
更多          
  zinc lead
The reported experimental work on the systems PbOx-CaO and PbOx-CaO-SiO2 in air is part of a wider research program that combines experimental and thermodynamic computer modeling techniques to characterize zinc/lead industrial slags.
      
This research is part of a wider program to characterize zinc/lead industrial slags and sinters in the PbO-ZnO-SiO2-CaO-FeO-Fe2O3 system.
      
  zn-pb
The thermodynamic simulations were conducted for the system H-O-K-Na-Ca-Mg-Al-Si-Fe-C-Cl-S-Zn-Pb-Cu, which is described by 54 minerals of constant and variable composition and 78 aqueous species.
      
Hydrodynamic and geochemical conditions of the formation of stratiform Zn-Pb ore mineralization by chloride solutions
      
Gas evolution of electrodeposited Zn-Pb-In-Bi alloy powder was less than that of atomized mercury-free alloy powder.
      
The hydrothermal activity which began in this steam explosion center is responsible for the formation of the Kuroko-type Cu-Zn-Pb-mineral deposits.
      
The various Zn-Pb-Ba-Fe occurrences appear to be strictly bound to continental dolomitic sediments (black ferroan dolomites), which outline the triassic erosional surfaces.
      
更多          


In the traditional vacuum distillation of Pakes' process of zinc crust, Zinc is distilled only. Some lab tests of evaporation of zinc and lead from zinc crust were done and the results of the tests are reported in this paper. The thermodynamic calculation of the Zn-Ag and Pb-Ag systems shows good separation of zinc from crust when N_(Ag)=0.9, the vapor density ratio ρ_(zn)/ρ_(Ag)=2.95×10~4, and when N_(Ag)=0.9, ρ_(Pb)/P_(Ag)=12, Pbmay be distilled from the crust also. The temperature, pressure and size of charge...

In the traditional vacuum distillation of Pakes' process of zinc crust, Zinc is distilled only. Some lab tests of evaporation of zinc and lead from zinc crust were done and the results of the tests are reported in this paper. The thermodynamic calculation of the Zn-Ag and Pb-Ag systems shows good separation of zinc from crust when N_(Ag)=0.9, the vapor density ratio ρ_(zn)/ρ_(Ag)=2.95×10~4, and when N_(Ag)=0.9, ρ_(Pb)/P_(Ag)=12, Pbmay be distilled from the crust also. The temperature, pressure and size of charge were investigated The optimum conditions of vacuum distitlation are obtained.

目前国外银锌壳的真空蒸馏限于蒸馏锌,本文探讨采用真空蒸馏的方法蒸馏锌和铅的可能。由理论计算知,Zn—Ag系在N_(Ag)=0.9时,其蒸汽密度比ρ_(Zn/ρ_(Ag)=2.95×10~4,说明锌、银的分离效果很好,Pb—Ag系在N~(Ag)=0.9时,ρ_(Pb)/ρ_(Ag)=12,仍有可能采用真空蒸馏的方法使其分离。试验研究了温度、残压、熔体深度对锌、铅蒸馏率的影响,并找出了锌、铅分别蒸馏和同时蒸馏的相关作业条件。

The experimental results for relationship of the temperature, the residual pressure and the melt depth on evaporation rates of lead and zinc are presented in this paper and the kinetic property in process is discussed as well. 700℃ and 1050℃ are respectively the necessary temperatures under which evaporation rates of zinc and lead can reach applied-value temperatures. Under the temperatures the evaporation rates of zinc and lead are 2.2×10~(-3)g cm℃2·s and 2.0×10~(-3)g cm~(-2)·sec~(-1).Temperature is the most...

The experimental results for relationship of the temperature, the residual pressure and the melt depth on evaporation rates of lead and zinc are presented in this paper and the kinetic property in process is discussed as well. 700℃ and 1050℃ are respectively the necessary temperatures under which evaporation rates of zinc and lead can reach applied-value temperatures. Under the temperatures the evaporation rates of zinc and lead are 2.2×10~(-3)g cm℃2·s and 2.0×10~(-3)g cm~(-2)·sec~(-1).Temperature is the most important factor to influence the increase of the evaporation rates of lead. At 1000℃, the residual pressure required in evaporation lead can not be more than 13.3Pa.The corresponding activation energies Ezn and Epb are 16.39 and 34.10 kcal when the pressure is 13.3Pa and the melt is not stirred. The two different orders of reactions are presented in the process of zinc evaporation. The initial evaporation peried is zero of reactian in which evaporation tate is controlled by themoconduct.The last evaporation period is first ouder of reaction in which evaporation rate is controlled by diffasion, while lead evaporation is limited by the diffusions of gasial phase and melt.

本文介绍银锌壳真空蒸馏时,锌、铅蒸发速率与温度、残压、熔体深度的关系实验结果,并讨论过程和动力学性质。锌、铅的蒸发速率达到有应用价值的必须温度分别为700℃和1050℃。此温度下锌、铅蒸发速率分别为2.2×10~(-3)g/cm~2·S和2.0×10~(-3)g/cm~2·S.温度是影响铅蒸发速率的最主要因素.压力的减小促使锌、铅蒸发速率增大,在1000℃时蒸馏铅所要求的残压不能大于13.3Pa.在熔体无搅拌,压力为13.3Pa时蒸馏过程相应的活化能为E_(Zn)=68.51J;E_(Pb)=142.54J. 锌在蒸馏过程中表现出两个不同级反应,蒸馏初期为零级反应,热传导支配蒸发率.蒸馏后期为一级反应,受扩散过程所控制.铅的蒸馏则受气相和熔体的扩散所限制。

n this paper,the masking properties of thiomalicacid have been investigated systematically.It is found thatthiomalic acid is an excellent masking agent for tin(Ⅳ),antimony(Ⅲ),thallium(Ⅲ) ,bismuth,copper(Ⅱ),mer-cury(Ⅱ)and silver at pH1.5~10,and iron(Ⅲ)at pH2~3.5.After masking these elements,thorium can be de-termined indirectly by addition of EDTA and backtitrationwith thorium solution at pH2.5~3,and in EDTA zincand ytterbium etc,can betitrated directly at pH5~6.andmagnesium,calcium, magnesium plus calcium andmanganese...

n this paper,the masking properties of thiomalicacid have been investigated systematically.It is found thatthiomalic acid is an excellent masking agent for tin(Ⅳ),antimony(Ⅲ),thallium(Ⅲ) ,bismuth,copper(Ⅱ),mer-cury(Ⅱ)and silver at pH1.5~10,and iron(Ⅲ)at pH2~3.5.After masking these elements,thorium can be de-termined indirectly by addition of EDTA and backtitrationwith thorium solution at pH2.5~3,and in EDTA zincand ytterbium etc,can betitrated directly at pH5~6.andmagnesium,calcium, magnesium plus calcium andmanganese etc. at pH10. Thiomalic acid can also displaceEDTA from Cu(Ⅱ)-,Sn(Ⅳ)-,Bi-,Hg(Ⅱ)-and Ti(Ⅱ)-EDTA complexes quantitatively,hence these el-ements can be determined selectively with the disp-lacement titration methods.With thiomalic acid as mask-ing agent,zinc in tin-bronzes,lead in lead-base alloys,bis-muth in bismuth concentrate and synthetic Wood′s metalcan be determined with satisfactory results.

本文系统地研究了硫代苹果酸在络合滴定中的掩蔽性能,发现它在pH1.5~10可作为Sn ̄(4+)、Sb ̄(3+)、Tl ̄(3+)、Bi ̄(3+)、Cu ̄(2+)、Hg ̄(2+)和Ag ̄+等的掩蔽剂(在pH2~3.5还可掩蔽Fe ̄(3+))。掩蔽上述离子后,可在pH2.5~3用Th ̄(4+)回滴EDTA,在pH5~6用EDTA滴定Zn ̄(2+)或Yb ̄(3+)等,或在pH10用EDTA滴定Mg ̄(2+)、Ca ̄(2+)、Mg ̄(2+)+Ca ̄(2+)和Mn ̄(2+)等。在pH5~6,硫代苹果酸能置换Cu ̄(2+)、Sn ̄(4+)、Bi ̄(3+)、Hg ̄(2+)或Tl ̄(3+)的EDTA络合物中的EDTA,而作这些金属离子的选择性置换滴定。已用硫代苹果酸为掩蔽剂,成功地测定了锡青铜中的锌、铅基合金中的铅、铋精矿和合成武德合金中的铋。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关锌铅的内容
在知识搜索中查有关锌铅的内容
在数字搜索中查有关锌铅的内容
在概念知识元中查有关锌铅的内容
在学术趋势中查有关锌铅的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社