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DOI:10.19476/j.ysxb.1004.0609.2017.05.023 含铟铁矾渣焙烧水浸法回收锌和铟 张魁芳,刘志强,戴子林,高丽霞 (广东省稀有金属研究所 广东省稀土开发及应用重点实验室,广州 510650) 摘 要:针对铁矾渣的危害性及处理现状,结合其物相特点,提出"焙烧-水浸法"从含铟铁矾渣中回收锌,铟的清洁工艺,系统研究焙烧过程物相变化及反应机理,确定最佳焙烧条件.考察浸出时间,温度,固液比对浸出的影响规律.结果表明:在650 ℃焙烧2 h,可使含铟铁矾渣分解,同时Zn和In生成易于浸出的ZnSO4和In2(SO4)3,铁以难浸出Fe2O3形式存在.在常温下,控制液固比5:1,用水浸出焙砂 0.5 h,Zn和In浸出率分别为72.02%和78.73%,Fe浸出率仅为4.42%,而Ag和Pb进入渣中富集回收. 关键词:含铟铁矾渣；焙烧；水浸；Zn；In 文......
EDTA滴定法中酒石酸钾钠用量对铟分析的影响 潘柳萍1,许俊强1,黄小凤1,黎铉海1 (1.广西大学) 摘要:为防止铟水解和保证EDTA滴定法能在酸性条件下进行滴定,分析铟靶材废料盐酸浸出液时酒石酸钾钠用量对铟含量测定的影响.试验表明,酒石酸钾钠用量过多或过少都会导致分析结果偏低.在铟含量为(5~ 57) g/L范围内,加入30%酒石酸钾钠溶液10 mL,在pH值为2.5时,可防止分析过程中铟的水解和酒石酸盐的沉淀析出,分析误差小于±0.1%. 关键词:酒石酸钾钠; 铟; EDTA滴定; [全文内容正在添加中] ......
by reactive hot pressing process. The reaction between Ti and Al powders is dominant in Ti-Al-Nb system. Nb powders dissolve into the Ti-Al matrix by diffusion. Pore nests are formed in situ after Nb... the reaction between Nb and Al powders. At last, only titanium aluminides form, while elemental Nb powders dissolve into Ti-Al matrix by diffusion. Pore nests formed in situ after Nb powders diffusion......
participates in bonding and undergoes a substitution reaction with free indium ions. Key words: indium; methanesulfonic acid; extraction; mechanism 铟作为一种高沸点,低熔点,耐腐蚀的高性能金属,在ITO靶材,焊接,合金等方面都得到应用,其生产越来越被人们...DOI: 10.11817/j.issn.1672-7207.2019.06.008 使用P204从甲基磺酸溶液中萃取铟的研究 何静,李杨刚,柳涛,廖方文,陈永明,杨声海 (中南大学 冶金与环境学院,湖南 长沙,410083) 摘要:以粗铅电解后液的甲基磺酸溶液为原料,使用萃取剂P204从甲基磺酸溶液中萃取铟.考察萃取剂体积分数,水相组成,搅拌时间,温度,相比等因素对铟萃取率的影响,模拟理论级数......
文章编号:1004-0609(2012)1-0315-09 机械活化对铟铁酸锌溶解动力学及物化性质的影响 张燕娟1,黎铉海1,潘柳萍1,韦岩松2 (1. 广西大学 化学化工学院,南宁 530004；2. 河池学院 化生系,宜州 546300) 摘 要:以人工合成的高纯度铟铁酸锌为研究对象,采用搅拌球磨对其进行机械活化.以锌的浸出率为评价指标,研究不同活化试样在硫酸溶液中的浸出特性和溶解动力学,并利用X射线衍射仪,扫描电镜,激光粒度分析仪和比表面积分析仪分别考察机械活化对铟铁酸锌晶体结构,颗粒形貌,粒度和比表面积的影响.结果表明:机械活化使铟铁酸锌的物化性质发生明显改变,并由此提高了铟铁酸锌的反应活性.经机械活化30和60 min后,铟铁酸锌与硫酸反应的表观活化能由未活化时的76.4 kJ/mol分别降至58.6和51.8 kJ/mol,表观反应级数也由原来的0.79分别降至......
Comparative study of one-dimensional NiCo alloy nanostructures assembled by in situ and ex situ applied magnetic fields WU Ming-zai(吴明在)1, 2, QUAN Gui-ying(全桂英)2, LIU Yan-mei(刘艳美)2... field-assisted assembly behavior, one-dimensional (1D) NiCo alloy nanostructures were solvothermally obtained at 180 ℃ under an in situ magnetic field (the magnetic field as applied during......
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of residual acidity on leaching rate The residual acidity means the residual acid concentration in solution after chemical reaction of leaching. In this experiment, the added quantity of waste ITO target... oxidant content on leaching rate The amount of added ITO powder, residual acidity, reaction temperature and reaction time were fixed as constants, while the added oxidant content, which was proportional......
In situ synthesized Cu-ZSM-5/cordierite for reduction of NO WANG Jian-cheng1, TIAN Dong1, HAN Li-na1, 2, CHANG Li-ping1, BAO Wei-ren1 1. Key Laboratory of Coal Science and Technology of Ministry...-ZSM-5/cordierite prepared by different methods shows a wide temperature window (240-540 °C) with high NO removal activities. Key words: in situ synthesis; Cu-ZSM-5/cordierite; selective catalytic reduction; NH3 1......
Fabrication of wear-resistant layers with lamellar eutectic structure by laser surface alloying using the in situ reaction between Cr and B4CYou-zheng Sun,Jin-bao Li,Daniel Wellburn,Chang-sheng...-resistant layers with lamellar eutectic microstructure were fabricated by laser surface alloying(LSA), which is dependent on the in situ reaction between Cr and B4C. Our results indicated......
