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Flocculation performance and mechanism of hydroxamate flocculants on synthetic hematite or goethite suspensionCHEN Xiang-pan(陈湘攀), HU Hui-ping(胡慧萍), LIU Jin-wei(刘锦伟), CHEN Hui-huang(陈辉煌), WANG Qi-guan(王其观) (School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China)Abstract:suitable amounts of Al(OH)3, NaOH and synthetic hematite or goethite were taken......
J. Cent. South Univ. (2019) 26: 63-74 DOI: https://doi.org/10.1007/s11771-019-3982-1 Modeling of goethite iron precipitation process based on time-delay fuzzy gray cognitive network CHEN Ning(陈宁... and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: The goethite iron precipitation process consists of several continuous reactors and involves a series of complex chemical......
针铁矿除铁工艺在丹霞冶炼厂的应用实践骆昌运1(1.广东省韶关市 丹霞冶炼厂)摘 要:介绍丹霞冶炼厂的针铁矿除铁的原理,工艺配置及运行情况.关键词:针铁矿； 工艺流程； 生产实践......
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precipitation based on goethite method XIONG Fu-qiang, GUI Wei-hua, YANG Chun-hua, LI Yong-gang (School of Information Science and Engineering, Central South University, Changsha 410083, China) Abstract: Goethite method requires harsh environment during the process of iron precipitation, in order to use advanced optimization control technology in the process of iron precipitation during hydrometallurgy......
; 文章编号:1672-7207(2019)02-0257-07 Characterization analysis of goethite residue from zinc hydrometallurgy plants LI Yuhu1, GAO Lupeng2, LIU Zhihong2 (1. School...: Considering the great variation of iron and zinc mass fraction and poor filtration performance in the goethite residue from zinc hydrometallurgy plants, the goethite residue samples from different......
; Schematic diagram of reaction devices of iron removal by goethite method enhanced by high shear 量筒量取上述ZnSO4-FeSO4混合溶液,倒入恒温加热装置中,设置好需要的温度,气体流量,剪切速率等参数后开始计时反应.pH通过实时加入氧化锌全程调控在试验所设固定值,每隔一段时间用移液管移取1 mL反应液... Fig. 7 SEM image of goethite residue produced by goethite process enhanced by high shear 图8所示为水热法剪切强化合成的针铁矿XRD谱.由图8可以看出,剪切生成的针铁矿的X射线衍射谱与针铁矿标准谱(PDF#29-0731)吻合,这表明采用高剪切溶液流场强化可以实现含铁溶液针铁矿法沉铁.
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; 文献标志码:A Hybrid modeling and control of iron precipitation by goethite process CHEN Ning, FAN Yong, GUI Wei-hua, YANG Chun-hua, JIANG Zhao-hui (School of Information Science... difficultly in iron precipitation by goethite process. A mathematical model of iron precipitation by goethite process was built based on the physical and chemical reaction mechanism of iron precipitation......
. Under the optimum condition, 94.2% of Ni, 98.1% of Cu, 92.2% of Co and 89.3% of Fe were recovered. Additionally, 99.6% of Fe was removed from the leachate as goethite by a subsequent goethite iron... solution. Key words: low nickel matte; calcified roasting; CaO; ferrite; goethite process 1 Introduction Nickel (Ni) is naturally present as two principal ore types: approximately 60% in sulfides and 40......
