二安替比林基－（2－溴）苯基甲烷与钒（Ⅴ）的显色反应研究

合成并鉴定了二安替比林基─（２─溴）苯基甲烷（ＤＡＯＢＭ）,研究了它与钒（Ⅴ）的显色条件。在Ｔｗｅｅｎ─８０和Ｍｎ（Ⅱ）存在下,ＤＡＯＢＭ与Ｖ（Ⅴ）在Ｈ３ＰＯ４（１＋１０）介质中生成橙色产物,λｍａｘ＝４９０ｎｍ,ε＝１．５５×１０６Ｌ·ｍｏｌ－１·ｃｍ－１,Ｖ（Ⅴ）的浓度在０．１～０．９μｇ／２５ｍｌ范围内符合比尔定律。方法用于中草药和矿样中钒的测定,结果满意。     

新型热作模具钢（JM）的研究与应用

５Ｃｒ４Ｗ４ＭｏＶＮｂ钢（ＪＭ）是一种新型加钒、铌的Ｃｒ－Ｗ－Ｍｏ热作模具钢。应用结果表明，该钢具有良好的锻造性能和机械加工性能，用该钢制作的精锻齿模和扳手模的使用寿命比３Ｃｒ２Ｗ８Ｖ钢提高１倍以上。     

镧系元素高氯酸盐苯丁基亚砜配合物的合成与表征

本文以稀土高氯酸盐ＲＥ（ＣｌＯ_４）_３ｎＨ_２Ｏ（ＲＥ＝Ｌａ~（３＋）、Ｃｅ~（３＋）、Ｐｒ~（３＋）、Ｎｄ~（３－）、Ｓｍ~（３－）、Ｅｕ（３＋），ｎ＝６～７）与苯丁基亚砜ＰＢＳＯ（Ｃ_６Ｈ_５Ｃ_４Ｈ_９）在无水乙醇体系中合成出六个新配合物，并对配合物进行了元素分析，稀土离子含量测定，配体ＰＢＳＯ含量测定ＣｌＯ_４~－含量测定、ＩＲ谱、导电、ＴＧ－ＤＴＡ分析及Ｘ－射线粉末衍射。确定了配合物的组成为［ＲＥ（ＢＰＳＯ）_７（ＣｌＯ_４）］（ＣｌＯ_４）_２，配位数为８，电解质类型为１：２。     

钛铁矿中微量钒的分光光度法测定

矿样经Ｎａ２Ｏ２，ＮａＯＨ熔融后碱过滤分离大量钛、铁等杂质，在ＰＨ４．５的乙酸一乙酸钠介质中，Ｖ（Ⅳ）柯还原Ｆｅ（Ⅲ）－ｐｈｅｎ据此建立了钛铁矿中微量钒的光度测定方法。最大吸收波长为５１２ｎｍ，间接摩尔吸光系为１．１×１０＾４。     

热作模具钢4Cr5Mo2NiVRE（R88）的研制

通过加钒－钼和镍－稀土使新研制的钢种４Ｃｒ５Ｍｏ２ＮｉＶＲＥ（Ｒ８８）在高温下具有高的热稳定性、抗氧化性和高的强韧性。应用结果表明，Ｒ８８钢制成的热作模具寿命比３Ｃｒ２Ｗ８Ｖ钢模具提高一倍。     

2－（2－苯并噻唑偶氮）－5－磺丙氨基苯酚高效液相色谱法测定钢中钒、钴和镍

在ＫＩＯ_４存在下,研究了２－（２－苯并噻唑偶氮）－５－磺丙氨基苯酚（ＢＴＡＳＰＡＰ）与Ｖ（Ⅴ）,Ｃｏ（Ⅱ）和Ｎｉ（Ⅱ）形成稳定络合物的反应,在Ｃｌ８柱上,以含０．２ｍｏｌ／Ｌ的乙酸－乙酸钠缓冲溶液（ｐＨ３．５）和１．０×１０－３ｍｏｌ／Ｌ,溴化四丁基铵的乙腈－丙酮－水（３６＋１＋６３）为流动相洗脱液,在５６５ｎｍ处检测。Ｖ（Ⅴ）,ＣＤ（Ⅱ）和Ｎｉ（Ⅱ）的络合物在６ｍｉｎ内获得完全分离,检测限分别为１５．０ｎｇ／ｍｌ,１５．０ｎｇ／ｍｌ和４０．０ｍｇ／ｍｌ．该方法已用于合金钢中钒、钴和镍的测定。     

轻稀土元素钨钒杂多配合物的合成与表征

本文首次报道了轻稀土元素钨钒杂多配合物的合成方法，经元素组成和ＴＧ分析确定其分子通式为Ｋ_（１０）Ｈ_７［Ｌｎ（Ｖ_２Ｗ_９Ｏ_（３７））_２］·ｘＨ_２Ｏ（Ｌｎ＝Ｌａ~（３＋）、Ｃｅ~（３＋）、Ｐｒ~（３＋）、Ｎｄ~（３＋））。利用ＩＲ、ＵＶ、ＸＲＤ和ＥＳＲ对配合物进行了表征。     

稀土-偶氮溴磺 (Ⅲ) 极谱络合吸附波的研究

在０００３ｍｏｌ·Ｌ－１（ＣＨ２）６Ｎ４ＨＣｌ缓冲底液中，偶氮溴磺（Ⅲ）在示波极谱仪上产生三个良好的还原波：Ｐ１（－０．２５Ｖ）、Ｐ２（－０．３５Ｖ）和Ｐ３（－０．５７Ｖ），加入稀土离子后，试剂峰高降低，并在更负的电位处产生络合吸附波Ｐ４（－０．６２Ｖ）。Ｐ４峰高与稀土离子的浓度有良好的线性关系，用来测定Ｃｅ３＋，检测下限可达２×１０－８ｍｏｌ·Ｌ－１。轻、重稀土有类似的响应。     

催化光度法测定环境样品中痕量钒的研究-- K2Cr2O7-偶氮胂Ⅲ指示反应体系

在微酸性介质中痕量Ｖ（Ⅴ）对重铬酸钾氧化偶氮胂Ⅲ褪色的反应有显著的催化作用，催化反应的表观活化能为２１７２ｋＪ·ｍｏｌ－１。据此建立了测定痕量钒的催化动力学分析法。线性测定范围为００２～０２０μｇ·ｍｌ－１，方法检出限为００２μｇ·ｍｌ－１Ｖ。本法重现性较好，用于测定人发、马铃薯、茶叶和废水中钒的含量，结果满意。     

铬铁矿的快速溶解方法及用分光光度法测定铬

Ｃｒ２Ｏ３和铬铁矿能溶于Ｈ２ＳＯ４－Ｌｉ２ＳＯ４Ｃｅ（ＳＯ４）２（２０／１０／１Ｖ／Ｗ／Ｖ），Ｈ２ＳＯ４－Ｌｉ２ＳＯ４－ＭｎＯ２（２０／１０／１Ｖ／Ｗ／Ｗ）或Ｈ２ＳＯ４－Ｌｉ２ＳＯ４－ＫＩＯ４（２０／１０／２／Ｖ／Ｗ／Ｗ）中，生成的混浊溶解可用Ｈ２Ｏ２处理或溶剂萃取使之变得清亮，而后用分光光度法在６１４ｎｍ处测定铬。     

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.     

Seven Rare Earth Projects Involving Close to 3 Billion Yuan Investment Landed In the HighTech Zone

正On May 22,Baotou Rare Earth Industry Cooperation Consultation MeetingProject Agreement-signing Ceremony was held in Ningbo,nearly 40 enterprises from Ningbo,Guangdong,Hunan,and Shanxi participated in project consultation.After multi-lateral communication,agreements were signed for a total of 7 rare earth projects successfully.