冕宁稀土资源开发利用持续发展

冕宁稀土资源开发利用持续发展四川省冕宁稀土资源位于西昌市北部约６０ｋｍ的地区，蕴藏着我国第二个氟碳铈矿大矿床。据普查，该矿床估计稀土储量有几百万ｔ（以ＲＥＯ计）。原矿含ＲＥＯ为４～８％，主要以轻稀土为主的单一氟碳铈铈形态存在，在稀土矿物中氟碳铈铈约占...     

1977年美国稀土工业动态

1977年稀土矿物装运量超过1977年47％,生产回升到几乎等于1973——1974年的记录水平,精矿价格平均提高15％。精矿供应氟碳铈镧矿、独居石和磷钇矿是工业应用中所用稀土的主要来源。氟碳铈镧矿是产自钼公司(加里弗尼亚油公司联盟的子公司)在芒特帕斯矿的一个露天矿。该矿的采矿     

国外稀土工业现状

国外稀土矿探明的储量估计为4200万吨(按 REO 计),工业储量为701万吨,主要矿物为氟碳铈镧矿,独居石和磷钇矿。氟碳铈镧矿和独居石用于生产铈类轻稀土。磷钇矿是钇和重稀土的主要来源。从钛铀矿和铀生产的废料中也可以回收一部分钇和重稀土。     

国外简讯

1977年稀土矿物装运量超过1976年47％,生产回升到几乎等于1973—74年的水平,精矿价格比常年提高了15％。 精矿供应 氟碳铈镧矿、独居石和磷钇矿是用于稀土工业的主要来源。氟碳铈镧矿是加利福尼亚州联合石油公司的子公司—钼公司在芒廷帕斯(Mountain Pa-ss)矿进行露天采矿来生产的,该矿的采选能力为每年30000吨稀土氧化物(REO),芒坦帕斯矿也是     

用邻苯二甲酸从山东微山矿浮选高纯氟碳酸盐稀土精矿的研究

本文阐述了用邻苯二甲酸作捕收剂,并成功应用于山东微山矿的选矿,获得了高纯氟碳酸盐稀土精矿,矿物纯度为98.75％。小型开路试验选矿指标为:稀土精矿品位βTR_2O_3=69.55％,回收率ε=64.47％,对氟碳酸盐稀土矿物的回收率为80.50％。 邻苯二甲酸是具有一个苯环的二元羧酸,它和油酸相比,对氟碳酸盐稀土矿物具有选择性和捕集能力强、药剂性能和浮选性能稳定、价廉等优点。继美国蒙顿帕斯氟碳铈镧矿用油酸浮选,包头白云鄂博混合稀土矿用羟肟酸类浮选之后所发现的第三类芳香族捕收剂。用邻苯二甲酸和油酸浮选比较,每吨原矿的药剂资,后者贵1.31元;由于回收率的差异致使每吨精矿成本,前者为768.03元,后者为1321.96元。     

采用固氟氯化法从氟碳铈矿中提取稀土氯化动力学的研究进展

针对我国主要的稀土矿物氟碳铈稀土矿目前在分解回收中主要采用浓硫酸焙烧法产生氟化氢污染环境的问题,清华大学核能与新能源研究院从1998年以来开展了氧化镁固氟、氯化铵选择性氯化提取氟碳铈中稀土及其动力学的研究。选择我国典型的稀土矿物包头混合型稀土矿及山东氟碳铈稀土矿展开研究,确定了适宜的工艺条件、氯化选择性和氟的转化形态。稀土以氯化稀土形式被浸取,对于两种稀土矿物稀土浸出回收率均在85%以上。氯化铵氯化稀土的氯化动力学符合Bagdasarym提出的多相区域反应动力学模型,氯化反应的速率αRE遵从Erofeev方程。氯化铵氯化不同形态氧化稀土氯化反应表观活化能的大小顺序为:EaLa2O3+CeO2相似文献   

微山稀土矿生产环境中天然放射性水平的调查及防护初步意见

前言微山稀土矿是我国特有的一种以铈族元素为主,中等规模的稀土金属矿床,该矿矿石及脉石矿物简单,单矿物以氟碳钙铈矿及氟碳铈矿为主,矿石选矿性能好。因该矿床不同于其他类型的稀土矿床,所以积极开发微山稀土矿,充分发挥其资源独特的优势,对促进我国稀土工业的发展是有重要意义的。地质资料表明,该矿伴生有少量天然放射性元素铀、钍。钍元素以单矿物钍石为主,其     

氟碳铈镧矿纯碱焙烧制取氯化稀土工艺过程产物的相结构

氟碳铈镧矿纯碱焙烧制取氯化稀土工艺过程产物的相结构常世安王树茂（北京有色金属研究总院１０００８８）关键词：ＣｅＯ２固溶体氟碳铈镧矿稀土相分析氟碳铈镧矿种单一、杂质少，几乎不含磷酸盐矿物，因而可能给矿石分解和稀土元素分离提供简化方法。一种可能的方法是用...     

从今年秋季广交会看稀土市场动向

我国稀土产品今年才开始进入国际市场,但氯化稀土和氟碳铈镧矿(含氧化物为60％)出口量都超过千吨,磷钇矿也做了百吨以上的大宗交易。氟碳铈镧矿的售价为1000～1100美元/吨;稀土氧化物含量≥45％,稀土中含Eu_2O_4～0.15％的氯化稀土售价为1800～1815美元/吨。景况是很好的。 今年秋季交易会上,洽谈希土贸易的客商多为     

努力开创我省稀土工业发展新局面

四川省重要的优势资源一氟碳铈稀土矿,主要分布在我省凉山州冕宁县和德昌县大陆槽一带。根据近两年来地质勘查队伍相继对我省稀土矿产资源进行勘察情况表明,我省稀土矿产资源保有储量为6579．24万吨,稀土氧化物（REO）为207．49万吨,平均品位3．2％,稀土氧化物（REO）远景储量已近400万吨。其资源储量居全国第二位,而作为独立成矿的氟碳铈稀土矿,则居全国第一位。     

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.