液膜富集铀（Ⅵ）与水中痕量铀的测定

研究了分离、富集铀（Ⅵ）的最佳液膜组成，试验了Ｓｐａｎ８０－ＴＢＰ－ＣＣｌ４－液体石蜡－ＨＣｌＯ４液膜体系富集的最优条件。用本法富集水和工业废水中的痕量铀（Ⅵ），富集可达７５倍以上。应用于测定水和废水样品中的痕量铀，相对标准偏差为２．１％，回收率为９９．００％～９９．８５％。     

液膜富集铀（VI）与水中痕量铀的测定

研究了分离，富集铀（Ⅵ）的最佳液膜组成，试验了Ｓｐａｎ８０－ＴＢＰ－ＣＣｌ４－液体石蜡－ＨＣｌＯ４液膜体系富集最优条件，用本法富集水和工业废水的痕量铀（Ⅵ）富集可达７５倍以上，应用于测定水和废水样品的痕量铀，相对标准偏差为２．１％，回收率为９９．００％～９９．８５％。     

用乳状液膜分离富集钾（1）与测定微量钾

用二苯并－１８－冠－６为流动载体的乳状液膜体系，研究了钾（１）的迁移行为。实验结果表明，只有Ｋ＋能与其它金属离子得到满意的分离。如大量的Ｎａ＋，ＮＨ４＋，Ｎｉ２＋，Ｌｉ＋，Ｃａ２＋，Ｍｇ２＋，Ｆｅ３＋，Ｍｏ６＋，Ａｌ３＋，Ｃｕ２＋，Ｃｏ２＋，Ｃｄ２＋，Ｚｎ２＋等，均不被迁移透过这乳状液膜。确定了最佳液膜体系的组成：二苯并－１８－冠－６，表面活性剂ＬＭＳ－１，四氯乙烯，苯甲酸甲酯和内相（ｐＨ４～６水溶液）；分离富集钾（１）的最适宜实验条件。Ｒｏｉ＝１∶１（油内比），Ｒｅｗ＝２０∶６０（乳水比）。此法已用于富集和测定食盐、卤水和工业废水中的微量钾（１），其回收率为９９．３％以上，相对标准偏差为３．６％以下，结果十分满意。     

用乳状液膜从硫酸铵型浸出液中浓缩稀土

在作者所做的＂用乳状液膜从氯化钠型浸出液中浓缩稀土＂的工作基础上，利用所获得的液膜体系和较佳工艺条件，继续进行了料液类型［即ＮａＣｌ型和（ＮＨ４）２ＳＯ４型浸出液的比较实验］、ＮａＡｃ用量、膜相中有无石蜡、膜回用等条件实验，获得了从（ＮＨ４）２ＳＯ４型浸出液中浓缩稀土的适用液膜体系Ｎ２０５－Ｐ５０７－煤油－ＨＣｌ乳状液膜浓缩稀土的浓度达１０２ｇ／Ｌ，稀土提取率达９３％。     

液膜分离富集、测定痕量钼

用乳状液膜体系对钼进行富集。该体系包括载体（5,8－二乙基－7－羟基十二烷－6－单肟,简称LIX63）、表面活性剂（N113A）、溶剂（煤油）以及内相（0．15mol/L NaOH溶液）。研究了乳状液膜的稳定性、温度、钼的浓度、外相的HNO3溶液浓度及乳水比等因素对分离富集钼的影响。实验表明,在适宜的条件下,钼的迁移率可达99．5％－100．2％。该法已尺用于富集、测定纯钨和钢铁中的痕量钼,结果相当满意。     

液膜法分离富集,测定钼中痕量铅

用２，６－二酮吡啶－１８－王冠－６（２，６－ＤＫＰ－１８－Ｃｒｏｗｅ－６）、ＳＰＡＮ８０、Ｇｌｙｃｅｒｏｌ（丙三醇）、ＣＣｌ４（Ｃａｒ－ｂｏｎｔｅｔｒａ－Ｃｈｌｏｒｉｄｅ）和内相（０．１５ｍｏｌ／ＬＮａ４Ｐ２Ｏ７溶液）乳状液膜体系，研究了Ｐｂ２＋的迁移行为。实验结果表明，８ｍｉｎ内Ｐｂ２＋的迁移率达９９．４％以上，而在这种情况下，许多金属离子如Ｍｏ６＋、Ｍｏ５＋、Ｗ６＋、Ｆｅ３＋、Ｎｉ２＋、Ｃｒ３＋、Ｌｉ＋、∑ＲＥ３＋、Ｋ＋、Ｎａ＋、Ｃａ２＋、Ｍｇ２＋、Ｂａ２＋、Ｓｒ２＋、Ａｌ３＋、Ｚｎ２＋、Ｃｄ２＋和Ｃｏ２＋等，都不被迁移，只有Ｐｂ２＋能从这些离子中满意地分离出来。该法已成功地用于分离富集、测定金属钼、钼精矿中痕量铅，相对标准偏差在４．２％以下，结果十分满意。     

液膜分离富集、测定铟

用乳状液膜体系对铟进行分离富集，并研究了乳状液膜的稳定性、温度、铟的浓度、外相pH值、乳水比（Rew)、油内比（Roi)等因素对富集铟的影响。实验表明，在适宜的条件下，铟的富集率可达99．5％－100．4％。在此情况下，常见共存离子都不迁移透过此乳状液膜。此法已用于富集测定烟尘、复杂多金属矿石中的铟，结果满意。     

液膜法分离富集测定钢中痕量铅

用２，６－二酮吡啶－１８－王冠－６（２－６－ＤＫＰ－１８－Ｃｒｏｗｅ－６），ＳＰＡＮ８０，Ｓ１００Ｎ－Ｉ（中性油）和Ｃ２Ｈ２Ｃｌ４乳状液膜体系，研究了Ｐｂ６２＋的迁移行为。在适宜条件下，８ｍｉｎ内Ｐｂ＾２＋的迁移率达９９．５％以上，而而这种情况下，许多金属离子如Ｆｅ＆３＋，Ｎｉ＾２＋，Ｃｒ＾３＋，Ｌｉ＾＋，∑ＲＥ＾３＋，Ｋ＾＋，Ｎａ＾＋，Ｃａ＾２＋，Ｍｇ＾２＋，Ｂａ６２＋，Ｓｒ＾２＋，Ａｌ＾３＋，     

用乳状液膜从氯化钠型浸出液中浓缩稀土

对乳状液膜从氯化钠型浸出液中浓缩稀土的工艺影响因素进行了考察。这些因素包括油肉比（Ｒｏｉ）、膜相中煤油和液体石蜡的比例、表面活性剂用量、内相酸度、料液中稀土浓度、水乳比（ＲＷｅ），Ｐ５０７和Ｐ２０４的比较以及搅拌时间。通过实验，获得了乳状液膜浓缩稀土的适宜配方是Ｎ２０５－Ｐ５０７－煤油－液体石蜡－ＨＣｌ以及较佳的操作条件，乳状液膜浓缩土稀土的浓度可达１００ｇ／Ｌ。稀土提取率可达９４％。     

液膜分离富集稀土与测定微量稀土总量

本文作者应用液膜技术分离、富集水中和钢铁中的微量稀土并了其总量（ΣＲＥ），研究了流动载体（Ｐ２１５）、表面活性剂（Ｎ１１３Ａ）、膜的增强剂（液体石蜡）、膜溶剂（煤油）和内相解析剂（ＨＣｌ）溶液等对液膜分离富集微量稀土的影响，建立了Ｎ１１３Ａ、Ｐ２１５、液体石蜡、煤油和ＨＣｌ溶液膜体系的最佳组成和最适宜的实验条件。富集后的溶液，用５－Ｂｒ－ＰＡＤＡＰ分光光度法测定ΣＲＥ。用本法富集微量稀土，富集倍数     

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.