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利用攀枝花钛精矿的两条流程 总被引:1,自引:1,他引:0
根据攀枝花钛精矿的特点和该地区的能源条件,论述了利用攀枝花钛精矿的两条流程:即钛精矿或电炉法酸溶性钛渣--硫酸法制造钛白流程;钛精矿盐酸浸出法人造金红石-氯化法制造钛白或海绵钛流程。并对这两条流程产业化的有利条件、存在问题和应采取的措施进行了探讨。 相似文献
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如何发展我国的富钛料生产 总被引:2,自引:0,他引:2
生产海绵钛和钛白的主要原料是钛精矿和天然金红石。钛精矿再加工成被称之为富钛料的高钛渣或人造金红石。海绵钛和氯化法钛白主要以高钛渣、人造金红石和天然金红石为原料;硫酸法钛白主要以酸溶性钛渣或钛精矿为原料。80年代以前,有60%以上的钛精矿用于硫酸法钛白生产,40%左右的钛精矿加工成高钛渣和人造金红石用于海绵钛和钛白的生产。由于环保和运输等原因,目前世界各国直接用钛精矿生产钛白的厂家越来越少,绝大部分的钛精矿都加工成高钛渣和人造金红石供给钛白和海绵钛生产。换言之,当前海绵钛和钛白生产所用原料的发展趋势是用钛… 相似文献
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采用XRD、扫描电镜对攀枝花钛精矿、攀枝花钛精矿制备人造金红石进行深度剖析,得出CaO在攀枝花钛精矿中主要与SiO2、MgO、FeO、TiO2等物质固溶于钛铁矿伴生相硅酸盐中。在生产人造金红石工艺中通过高温强氧化还原改性,盐酸浸出等方法均不能有效打破其结构,导致CaO在人造金红石产品中富集,影响产品质量。提出通过深度解粒,调整钛精矿选别工艺参数,可有效降低钛精矿中CaO含量,生产出高品质的人造金红石。也可通过高梯度磁选处理富钛料去除CaO杂质元素,生产满足国际大型沸腾氯化炉需要的人造金红石产品。 相似文献
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钛产品从原料经过深加工后分为:钛精矿、高钛渣、人造金红石、钛白粉、海绵钛、钛材(钛合金)等。其中高钛渣分为酸溶性钛渣和氯化钛渣,钛白粉分为硫酸法钛白和氯化法钛白。1 国内钛资源综合利用情况及主要问题对国内钛矿的生产,特别是对攀枝花钛精矿的综合回收问题,国家从“七五”就开始组织各院所攻关一直到“八五”,目前已取得令人满意的成果,生产顺利。但有不少小选钛厂仍在采用落后的生产技术,且生产规模也较小,这既浪费资源,又污染环境,必须加以治理和整顿。国内钛渣的生产技术攻关,从“七五”一直到“九五”都在进行,但目… 相似文献
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本文以钛精矿为原料进行真空碳热预还原-盐酸浸出实验,并分析真空碳热还原温度对金属失重率、金属化率、炉内压强以及Fe、Si和Mg挥发情况的影响,以及研究盐酸浸出中不同固液比、盐酸浓度、酸浸时间对人造金红石品位的影响,从而得到真空碳热预还原-盐酸浸出钛精矿制备人造金红石方法的最佳反应条件。试验结果表明,随着还原温度升高,金属化率和失重率逐渐增加,Fe、Si和Mg的挥发率逐渐增大,还原温度选择1 500℃为宜;盐酸浸出最佳条件为盐酸浓度15%、固液比1∶5、酸浸时间20 min、搅拌速度120 r/min。真空碳热预还原可使钛精矿的杂质含量降低,使杂质铁还原形成细小的球状颗粒,使其比表面积大大增加,从而降低酸解的反应温度、压强和反应时间,在常压条件下采用盐酸浸出方法即可以快速还原得到高品位的人造金红石。 相似文献
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<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 相似文献
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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, 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
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 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
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 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
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, 相似文献
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《China Nonferrous Metals Monthly》2014,(12)
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. 相似文献
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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. 相似文献
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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. 相似文献