三正辛胺─CHC_(l3)萃取Cr(Ⅵ)的研究

研究了三正辛胺－ＣＨＣｌ３从Ｈ２ＳＯ４溶液中萃取Ｃｒ（Ⅵ）．考察了各种影响萃取的因素,用多种方法联合确定萃合物的组成和萃取平衡机理,表明萃取过程属阴离子交换机理、揭示了Ｄｅｐｔｕｔａ等对 Ｃｒ（Ⅵ）萃取型体的异论。     

三正辛胺—CHCl3萃取Cr（Ⅵ）的研究

研究了三正辛胺－ＣＨＣｌ３从Ｈ２ＳＯ４溶液中萃取Ｃｒ（Ⅵ）。考察了各种影响萃取的因素,用多种方法联合确定萃合物的组成和萃取平衡机理,表明萃取过程属阴离子交换机理理,提示了Ｄｅｐｔｕｔａ等对Ｃｒ（Ⅵ）萃取型体的异论。     

Cr2O3中Cr（Ⅵ）浸出方法的研究与测定

对Ｃｒ２Ｏ３中Ｃｒ（Ⅵ）浸取与测定进行研究试验，提出在ＮａＯＨ溶液中浸取、光度法或容量法测定的分析方法，结果良好。     

PEG-Na2SO4-CPAⅢ体系中镧、铀与钴的萃取分离

研究了Ｌａ（Ⅲ）、Ｕ（Ⅵ）等了了大聚乙二醇２０００（ＰＥＧ）－硫酸钠－偶氮氯膦Ⅲ（ＣＰＡⅢ）双水相体系中的萃取行为及存在形态。结果表明,在ＰＨ４．０－６．５的ＨＡｃ－ＮａＡｃ缓冲溶液中,Ｌａ（Ⅲ）、Ｕ（Ⅵ）几乎被ＰＥＧ相全部萃取,而Ｃｏ（Ⅱ）基本不被萃取,可实现Ｌａ（Ⅲ）与Ｃｏ（Ⅱ）及Ｕ（Ⅵ）与Ｃｏ（Ⅱ）混合离子的定量分离。经吸收光谱、摩尔经、连续浓度变换法、加入表面活性剂等试验表明,在萃取相中Ｌ     

N,N—二辛基甘氨酸萃取锗的机理

报道了Ｎ，Ｎ－二基甘氨酸从盐酸体系中萃取铑的机理，结果表明，锗的萃取率随酸度、氯离子浓度、铑离子浓度的增大而降低，采用法测得萃合物组成为：Ｒ２ＨＣＨ２ＣＯＯＨ．ＨＲｈ（Ｈ２Ｏ）２Ｃｌ４．萃取反应方程式为：Ｒ２ＮＣＨ２ＣＯＯＨ．ＨＣｌ（Ｏ）＋Ｒｈ（Ｈ２Ｏ）２Ｃｌ４（Ａ）＝Ｒ２ＮＣＨ２（ＣＯＯＨ．ＨＲｈ（Ｈ２Ｏ）２Ｃｌ４（Ｏ）＋Ｃｌ（Ａ）。     

液膜分离富集法测定钢材酸洗液中微量铬的探讨

研究了用ＴＢＰ－Ｐ２０４－ＳＰＡＮ８０－煤油高效乳状液膜体系分离富集铬（Ⅵ），实验测量了外相ＰＨ值、协同流动载体（ＴＢＰ＋Ｐ２０４）浓度、表面活性剂、ＳＰＡＮ８０和内相ＮａＯＨ浓度对Ｃｒ（Ⅵ）迁移、富集的影响，结果表明：只有Ｃｒ（Ⅵ）能从常见离子中得到满意的分离和富集。该法已成功地应用于富集和测定钢材酸洗液和工业废水中微量铬。     

钼（Ⅵ）.钨（Ⅵ）—溴代苯羟乙酸络合吸附电流在催化体系中的增敏研究和应用

在含ＥＤＴＡ、溴代本羟乙酸（Ｂｒ－ＢＨＡ）的硫－磷混酸介质中,钼（Ⅵ）、钨（Ⅵ）－Ｂｒ－ＨＢＡ络合物分别在－０．５０Ｖ和０．８７Ｖ（ｖｓ．ＳＣＥ）处产生不太灵敏的极谱电流。加入ＮａＣｌＯ３后,产生灵敏催化电流「比在苯羟乙酸（ＨＢＡ）体系分别增敏２．３倍和３倍１．峰电位（Ｅｐ）分别移至０．４４Ｖ和－０．７８Ｖ。系统研究了十余种易质子化有机染料和八种阳离子表面活性剂对上述催化电流进一步增敏效应。其中以     

吐温80——硫酸铵——水固——液萃取分离金的研究

报道了吐温８０－（ＮＨ４）２ＳＯ４－水的固液萃取体系中Ａｕ（Ⅲ）溴络阴离子ＡｕＢｒ４－的萃取行为,Ｈ２ＳＯ４－ＮＨ４Ｂｒ介质中,该体系可定量萃取Ａｕ（Ⅲ）,而常见贱金属不被萃取,可用于从贱金属基体中分离金,对合成样及实际样品进行了萃取分离,并对机理进行了初步探讨。     

钼(Ⅵ)、钨(Ⅵ)-溴代苯羟乙酸络合吸附电流在催化体系中的增敏研究和应用 Ⅰ.同时测定钼、钨的灵敏示波极谱法

在含ＥＤＴＡ、溴代苯羟乙酸（Ｂｒ－ＢＨＡ）的硫－磷混酸介质中,钼（Ⅵ）、钨（Ⅵ）－Ｂｒ－ＢＨＡ络合物分别在- ０.５０Ｖ和-０．８７Ｖ（ｖｓ．ＳＣＥ）处产生不太灵敏的极谱电流。加入ＮａＣｌ_３后,产生灵敏催化电流［比在苯羟乙酸（ＢＨＡ）体系分别增敏２．３倍和３倍］,峰电位（Ｅｐ）分别移至－０.４４Ｖ和－０.７８Ｖ。系统研究了十余种易质子化有机染料和八种阳离子表面活性剂对上述催化电流进一步增敏效应,其中以亚甲蓝（ＭＢ）为最佳。无ＮａＣｌＯ_３时,加入 ＭＢ,原络合电流略有所降低, Ｅｐ无明显变化。但当加入     

t－BAMBP萃取铷、铯反应机理及热力学函数研究

研究了ｔ－ＢＡＭＢＰ（简称ＲＯＨ）从碱性水相中萃取铷、铯的机理。以斜率法、饱和法测定萃合物组成为ＭＯＲ·３ＲＯＨ（Ｍ表示Ｒｂ￣＋、Ｃｓ￣＋）。ＲＯＨ萃取铷、铯为阳离子交换机理，萃取方程式为＋２（ＲＯＨ）＿２（ＭＯＲ·３ＲＯＨ）。由温度效应按ｌｇＤ－Ｔ￣（－１）的直线斜率，求得萃取热焓△Ｈ，由△Ｈ和表观萃取平衡常数Ｋ便可计算自由能△Ｇ和熵变△Ｓ。萃取铷、铯的过程是一个放热反应     

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.