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- decopperized lead bullion 除铜粗铅
- Britannia Refined Metals Ltd. was built in 1931 to refine the lead bullion produced at the Mt.Isa mine in Queensland,Australia. 不列颠精炼金属公司建于1931年,精炼产于澳大利亚昆士兰州芒特·艾萨的粗铅。
- The impact of sulphur overcharge percentage,heating temperature and heating time on percent formation of PbS are studied,and the PbS overcharge percentage,heating time and agitation time for decoppering from lead bullion are investigated too. 在本实验中;对硫加入过量率、加热温度、加热时间等制备PbS的工艺条件进行了研究;并确定了加PbS除铜工艺的最佳硫化铅用量;最佳搅拌时间等技术条件.
- Determination of Au and Ag of lead bullion containing high grade gold and silver by the analysis of AB samples was introduced,and it's advantage over conventional method was proved by the facts. 详细介绍了对高金银含量粗铅的非常规检验方法即AB样检测法的实践及其效果,用事实验证了AB样检测法较之常规检验方法的优越性。
- Keywords lead bullion;pyro-refining;PbS;decoppering; 粗铅;火法精炼;硫化铅;除铜;
- Determination of Pb in Lead Bullion by Sulphate Precipitation Separation Method 硫酸盐沉淀分离法测定粗铅中的铅含量
- Lead Bullion Production at Zhuzhou Smelter Group and Its Future Development 株冶粗铅生产现状及改进设想
- Keywords Thermodynamic analysis;Decoppering in lead bullion;Pyro-refining;PbS; 热力学分析;粗铅除铜;火法精炼;硫化铅;
- The horse forged ahead the lead in the homestretch. 那匹马在最后阶段突然加速跑到前面。
- Shirley will try out for the lead in the play. 雪莉将参加该剧主角的选拔演出。
- Excessive patriotism can lead to xenophobia. 爱国主义过了头即可导致仇视一切外国人。
- Lead aprons shield people from radiation. 铅做的工作裙可使人免进辐射。
- Graphite is used in making lead pencils. 石墨常被用来做成铅笔。
- Lead will fuse at quite a low temperature. 铅会在相当低的温度下熔化。
- The team recovered its lead in the second half. 该队在下半场重新领先。
- decopperized lead 除铜铅
- Comprehensive Production of Impurity Control in the Process of Lead Bullion Fire Refining 粗铅火法精炼过程中杂质控制的生产实践
- No road of flowers lead to glory. 没有一条通往光荣的道路是铺满鲜花的。
- Copper has less resistance than lead. 铜的电阻比铅的小。
- I'll take part, but I won't want to lead. 我参加,但不想当领导。