硫酸铵—1—（2—吡啶偶氮）—2—萘酚—磺酸—Tween80体系萃取分离铁

研究了硫酸铵－１－（－２－吡啶偶氮）－２－萘酚－Ｔｗｅｅｎ８０体系萃取铁的行为。试验表明,当溶液ＰＨ２．０～４．０能使Ｆｅ（Ⅱ）与Ｚｎ（Ⅱ）与Ｚｎ（Ⅱ）,Ｃｄ（Ⅱ）、Ｍｎ（Ⅱ）、Ｍｇ（Ⅱ）、Ａ（Ⅲ）定量分离。应用该计测定了铝铪合金中Ｆｅ的含量,结果满意。     

电弧炉炼钢尖晶石铁粉法形成的机理

通过对电弧炉粉尘的尖晶石、铁微粒特征的研究，谷得出尖晶石、铁粉尘形成的机理，其结果如下：（１）电弧炉粉尘的尖晶石、铁微粒的化学分子式为（ｎｘＺｎｙＦｅ１－ｘ－ｙ）Ｆｅ２Ｏ３；（２）氧气输送到渣钢界面时，钢 形成大量氧化物层（从表面到内部），它们分别是（Ｍｎ，Ｚｎ）Ｆｅ２Ｏ４，（Ｍｎ，Ｚｎ）Ｆｅ２Ｏ４－Ｆｅ３Ｏ４，Ｆｅ３Ｏ４－（Ｍｎ，Ｆｅ）Ｏ和（Ｍｎ，Ｆｅ，）Ｏ。（３）一些尖晶石，铁粗粒粉末其表面经     

高纯氧化铁中杂质元素对锰锌铁氧体性能的影响

提出了一种利用含亚铁废盐（或废液）连续中和氧化生产Ｍｎ－Ｚｎ铁氧体用高纯α－Ｆｅ２Ｏ３的方法，并分析了高纯Ｆｅ２Ｏ３中杂质元素Ｓｉ、Ｋ、Ｎａ、Ｃａ、（或Ｃｌ－）、Ａｌ、Ｐｂ等对Ｍｎ－Ｚｎ铁氧体性能的影响，指出原材料的合格品质是制成优质Ｍｎ－Ｚｎ铁氧体的先决条件。     

二甲酚橙分光光度法测定锡、铁、铝

在ｐＨ＜６．３的溶液中,二甲酚橙（ＸＯ）与某些金属离子Ｍｅ,如Ｔｈ４＋,Ｂｉ３＋,Ｐｂ２＋,Ｚｎ２＋,Ｈｇ２＋,Ｃｄ２＋等生成的红色络合物Ｍｅ－ＸＯ的稳定性小于ＥＤＴＡ（Ｈ２Ｙ２－）与Ｍｅ生成的络合物ＭｅＹ。Ｓｎ４＋,Ｆｅ３＋,Ａｌ３＋,Ｃｒ３＋,Ｎ...     

一正辛基膦酸与二正辛基膦酸作金属萃取剂的比较

一正辛基膦酸与二正辛基膦酸作金属萃取剂的比较西班牙研究了２５℃时用溶于甲苯的一正辛基膦酸（Ｈ（Ｏ）（Ｈ）Ｐ］）和二正辛基膦酸（Ｈ［ＤＯＰ］）从１．０Ｍ硝酸钠溶液中提取Ｆｅ（Ⅲ）、Ｃｏ（Ⅱ）、Ｚｎ（Ⅱ）、Ｃｕ（Ⅱ）、Ｃｄ（Ⅱ）和Ｐｂ（Ⅱ）的萃取率与水相...     

2－［2′－（6′－甲氧基－苯并噻唑）偶氮］－5－二甲氨基苯甲酸光度法连续测定铁和镍

研究了新试剂２－［２′－（６′－甲氧基－苯并噻唑）偶氮］－５－二甲氨基苯甲酸（ＭＯＢＴＡＭＢ）与Ｆｅ（Ⅱ）,Ｎｉ（Ⅱ）的显色反应。在混合表面活性剂（ＴｒｉｔｏｎＸ－１００－ＳＤＳ）存在下,于ｐＨ５．２的ＨＡｃ－ＮａＡｃ缓冲溶液中,Ｆｅ（Ⅱ）,Ｎｉ（Ⅱ）与ＭＯＢＴＡＭＢ反应均形成１：２的稳定络合物。前者最大吸收波长为６５１ｎｍ,后者最大吸收波长为６５８ｎｍ。选定６５６ｎｍ为测定波长,测得表观摩尔吸光系数分别为ε＿Ｆｅ－ＭＯＢＴＡＭＢ＝８．３×１０￣４,ε＿Ｎｉ－ＭＯＢＴＡＭＢ＝１．２９×１０￣５。铁浓度在０     

新试剂3,5—二溴—4—氧基苯基荧光酮与锰（Ⅱ）的显色反应的研究及应用

研究了新显色剂３，５－二溴０－４－氨基苯基荧光酮（ＤＢＡＰＦ）与锰（Ⅱ）的显色反应，在阳离子表面活性剂溴化十六烷基三甲铵（ＣＴＭＡＢ）存在下，ＰＨ９．０ＮＨ３．Ｈ２Ｏ－ＮＨ４Ｃｌ介质中，ＤＢＡＰＦ与Ｍｎ（Ⅱ）形成１：２红色络合物，最大吸收小５７５ｎｍ表观摩尔吸光系数ε＝１．０５１０＾５，锰（Ⅱ）的浓度在０－８．５μｇ／２５ｍｌ的范围内符合比尔定律。，拟定方法用于钢铁样品中微量锰的测定，结果满意。     

FeMnSi形状记忆合金的研究

ＦｅＭｎＳｉ形状记忆合金的研究ＳＴＵＤＹＯＮＳＨＡＰＥＭＥＭＯＲＹＡＬＬＯＹＳＦｅＭｎＳｉ摘自冶金部钢铁研究总院研究生李映雪的硕士学位论文，导师：王新林、毕晖由于对形状记忆合金（ＳＭＡ）的广泛需求，促使人们研究开发价格低廉且性能优良的新型形状记忆合金...     

锰在BaO－BaF_2－MnO熔剂和锰铁熔体间的平衡

在１５７３－１６７３Ｋ时测定了锰在ＢａＯ－ＢａＦ_２和Ｍｎｏ渣和Ｍｎ（６２－７３％）－Ｆｅ－Ｃ饱和熔体之间的平衡分配比．研究了渣的成分、氧分压和温度对标分配比的影响，发现锰的平衡分配比是随着氧分压和渣中ＢａＯ含量的增加而增加．在氧分压较高时．向ＢａＯ－ＭｎＯ渣中附加ＢａＦ２，为减少镜的损失和使锰铁脱磷能够进行提供了有利条件．在氧分压一定时，在渣与碳饱和的镜铁平衡时，ＢａＯ与ＭｎＯ的摩尔分数比是随着渣中ＢａＯ的增加而减少的．温度高导致锰的分配比低．对于ＢａＯ（５０％）－ＢａＦ２（４７％）－ＭｎＯ（３％）渣；温度对锰容量的影响可以表示为：Ｎｎ（１）十１／２０２＝（ＭｎＯ）这个反应热，在研究的温度一定时计算为一定时计算为－４１５ｋＪ／ｍＯｌ     

由软锰矿,闪锌矿,铁屑直接制取锰锌铁氧体软磁材料新工艺研究

本文结合磁性材料工艺和锰矿技术特点，创造性地提出由软锰矿、闪锌矿制备锰锌铁氧体材料，克服了锰矿、闪锌矿处理过程的Ｍｎ－Ｚｎ、Ｍｎ－Ｆｅ、Ｚｎ－Ｆｅ分离难题，大大降低了磁性材料生产成本，由于磁性材料产品附加值高，从而为我国丰富的贫锰矿利用找到了一条有效的途径     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.