Characteristics of Nb and Ta in V-Cu Residue from Purification of TiCl4
Characteristics of Nb and Ta in V-Cu Residue from Purification of TiCl4
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TiCl4提纯V-Cu残渣中Nb和Ta的特性
DOI：
10.1007/s12649-017-0112-x
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发表时间：
--
影响因子：
3.2
通讯作者：
Yongqiong Yang
中科院分区：
文献类型：
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作者：
Hannian Gu;Ning Wang;Yongqiong Yang
四氯化钛是通过氯化各种含钛矿石生产的。氯化步骤可产生多种金属氯化物杂质，例如铁氯化物和钒氯化物。铜丝除钒工艺在我国应用广泛。在除钒过程中，固体和液体的混合物将作为废物排出。钒铜渣是从净化过程中产生的固液混合物中过滤出来的固体废物。采用X射线荧光光谱法、电感耦合等离子体发射光谱法、X射线衍射法和扫描电子显微镜对贵州遵义钒铜渣进行了分析。结果表明，该废渣含Ti（29%）、Cu（9.87%）、Cl（8.83%）、V（5.77%），并含有一定量的铌和钽。主要矿物相为钒铌氧化物、钛铌氧化物、钛氧化物和毛铜矿。Ti和V主要以氧化物的形式存在，呈致密团块状，并伴有少量Nb。V-Cu渣中的Cu主要以氯化物的形式存在，吸附在Ti-V-Nb氧化物表面。
Titanium tetrachloride is produced through the chlorination of a variety of titanium bearing ores. The chlorination step can produce a variety of metal chloride impurities, such as iron chlorides and vanadium chlorides. The technological process of removal vanadium with copper wires is widely used in China. In the process of removal vanadium, a solid and liquid mixture will be discharged as waste. V–Cu residue is a kind of solid waste filtered from the solid and liquid mixture generated in the purification process. V–Cu residue samples from Zunyi, Guizhou, China, were investigated using X-ray fluorescence spectroscopy, inductively coupled plasma optical emission spectrometry, X-ray diffraction, and scanning electron microscope. The results showed that this waste residue contained Ti (29%), Cu (9.87%), Cl (8.83%), V (5.77%), and an amount of niobium and tantalum. Mainly mineral phases were composed of vanadium niobium oxides, titanium niobium oxides, titanium oxides, and eriochalcite. Ti and V mainly existed in the form of oxides, as dense clumps, and were accompanied by a small amount of Nb. Cu in the V–Cu residue mainly existed in the form of chlorides, adsorbing on the surface of the Ti–V–Nb oxides.