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No cadmium ore is mined for the metal, because more than enough is produced as a byproduct of the smelting of zinc from its ore, sphalerite, in which CdS is a significant impurity, making up as much as 3%.

没有为了开采镉而开矿的,因为从锌矿中提炼锌的时候产出的副产品已经是绰绰有余了,在闪锌矿中镉是最主要的混杂物,大概占3%。

Zinc concentration with zinc grade 30% and recovery 65% can be obtained using xanthate and amine as corresponding collectors of lead and zinc with open circuit and selective flotation flowsheet.

试验发现,用黄药作氧化铅的捕收剂、胺作氧化锌的捕收剂、优先浮铅的开路流程能够获得的锌品位和锌回收率分别为30%和65%。

Methods: Zinc has catalysis ability in the system of oxidze xylenol orange in medium, and the discoloration extent of methyl orange has a linearity to the content of zinc. Based on this fact, a new photometric method for the determination of zinc was proposed.

在H2SO4介质中,微量锌对过氧化氢氧化二甲酚橙的反应体系具有催化作用,且二甲酚橙被氧化后的褪色程度ΔA与微量锌的含量有线性关系,据此建立了二甲酚橙褪色光度法测定微量锌的新方法。

ZnO green phosphors with hexagonal wurtzite were prepared by thermal oxidization of zinc sulfide and zinc chloride.

摘 要:在氯化锌存在下,通过硫化锌的热氧化制备具有六方纤维锌矿结构的氧化锌绿色荧光粉;研究煅烧温度对荧光粉的激发光谱和发射光谱的影响并测定了荧光粉中硫、氯元素含量。

Thus the alkaline zincate continuous zinc plating technology for steel sheet was investigated, with the emphasis being placed on the effects of the bath composition and process conditions on the current efficiency. The throwing power of the plating solution was tested using Hull's cell 8 points thickness method, and the adhesion strength of the coating was examined by heating and shock cooling test.

为此,研究了用于薄钢板连续电镀的锌酸盐镀锌工艺,重点研究了镀液成分及工艺条件对电流效率的影响,用Hull槽8点法测试了镀液的均镀能力;用加热骤冷法测试了镀层的结合力,并对薄钢板连续电镀锌的前后处理工艺作了探讨。

The authors carried many researches of the feasibility about enriching and separating trace zinc from almost cadmium, and the rate of recoveries of several common metal ions according to this methodo Through repeatedly probed and tried out, at last, a thought as collaborated with traditional methods was established - using diantipyrinylmethane as complex reagent ,with ammonium thiocyanate and zinc forming the triple ionic compound in the medium of hydrochloric acid , extracted by trichloromethane, extracted the organic system by ammonium hydroxide in order to gain zinc .

本文主要研究了从镉基体中富集分离微量锌的可行性,以及采用该方法几种常见金属离子的回收率。通过反复的摸索、试验,最终确立了与传统方法相结合的思路—采用二安替比林甲烷作为络合剂和硫氰酸铵、锌在盐酸介质中形成三元离子缔合物,用三氯甲烷作为萃取剂,最后用氨水作为反萃剂将有机相中的锌洗脱出来与镉分离。

Our country is to raise pig big country, research and contented pig are measured to the need of microelement, develop the manufacturing latent capacity with the largest pig, have very important sense. 1 zinc zinc is widespread inside pig body and even, mix with muscle, skeletal, liver by Mao Zhong zincic content is highest.

我国是养猪大国,探究和满足猪对微量元素的需要量,发挥猪最大的生产潜力,具有十分重要的意义。1锌锌在猪体内分布广泛且均匀,以肌肉、骨骼、肝脏和被毛中锌的含量最高。

The stability effects of the new heat-stable inhibitors of calcium soap and zinc soap are evaluated through the statical and dynamical heat stability test,which show that the new heat stablizer have higher heat stability with heat-stable time two times longer than calcium stearate or zinc stearate,and can be used in non-toxic PVC pro ducts with good economic and social effec

研究结果表明:这种新型钙皂、锌皂具有较高的热稳定效果,在 1 70℃下的热稳定时间是硬脂酸钙、硬脂酸锌的 2倍以上,完全可以替代热稳定效果较差的硬脂酸钙、硬脂酸锌,可用于无毒PVC制品中,具有良好的经济效益及社会效益。

Determining zineb fungicide using a flow-injection chemiluminescence method FANG Lu-qiu (Department of Environment and Chemistry, Fuling Normal University, Chongqing 408003, China) Abstract: N-bromosuccinimide was used to oxidize zineb under basic conditions, producing a strong chemiluminescence signal.

流动注射化学发光法测定杀菌剂代森锌的含量方卢秋(涪陵师范学院化学及环境科学系,重庆 408003)摘要:在碱性条件下,N-溴代丁二酰亚胺直接氧化代森锌产生强烈的化学发光信号,结合流动注射技术,建立了测定杀菌剂代森锌含量的流动注射化学发光分析法。

In process of zinc norfloxacine by two-step, the reaction between sodium hydrate and zinc sulphate can be avoided to improve the quality of products. Thermogravimetry shows there is the crystal water of 3 molecules in the zinc norfloxacine. Complexometry can be used to assay zinc norfloxacine.

结论采用两步法合成氟哌酸锌可以避免NaOH与ZnSO4的反应,使产品质量得以提高;通过热重量分析,表明氟哌酸锌分子中含有3分子的结晶水;络合滴定法可作为氟哌酸锌的检测方法。

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