硫酸浸取硫铁矿烧渣工艺条件的优化

Abstract

Abstract: An experimental study on leaching reaction between pyrite cinder and sulfuric acid was carried out.Effects of reaction temperature and time，sulphuric acid concentration and excess coefficient on Fe leaching rate were investigated.On the basis of orthogonal experiments of four factors and three levels，the range values of various factors followed by reaction temperature（0.212），reaction time（0.075 5），excess coefficient（0.062 5），and concentration（0.057 7），of which the temperature was the most impactive factor.The optimized conditions were：reaction temperature of 100 ℃，reaction time of 3 h，excess coefficient of 1.05，and sulphuric acid concentration of 8 mol/L.As it was difficult to operate at 100 ℃ in actual operation，micro-pressure could be applied to improve the leaching rate.

Key words: pyrite cinder, sulphuric acid, orthogonal experiment, leaching

CLC Number:

TQ138.11

SHI Zhao-Zhong, ZHAN Gui-Rong. Study on optimization of leaching conditions of pyrite cinder with sulphuric acid[J]. INORGANICCHEMICALSINDUSTRY, 2012, 44(11): 42-.

[1]	Yang Xiaohong,Xue Xishi,Zhang Lulu,Chang Jun. Kinetics study of calcium leaching from electrolytic manganese residue by hydrochloric acid [J]. Inorganic Chemicals Industry, 2021, 53(1): 82-86.
[2]	Li Xiaole. Study on optimizing process parameters of tubular cathode for lead-acid batteries [J]. Inorganic Chemicals Industry, 2020, 52(8): 36-39.
[3]	Qin Xianfeng,Quan Xuejun,Ye Peng,Feng Chengfei,Li Gang. Research progress of process intensification of acid leaching technology from chromite ore and separation of chromium-iron [J]. Inorganic Chemicals Industry, 2020, 52(6): 13-19.
[4]	Qing Penghui,Dong Yuming,Wang Xingrun,Zhu Kaisheng,Niu Renjie,Meng Jingjuan,Chen Xiaohong,Chen Huixia,Zhang Hongling,Xu Hongbin. Chromium extraction and detoxification of processing residue from lime-free roasting process of chromite ore [J]. Inorganic Chemicals Industry, 2020, 52(6): 63-67.
[5]	Li Jieen,He Binbin,Yang Xiushan,Xu Dehua,Zhang Zhiye. Study on phosphorus extraction and impurity reduction technology for pretreatment of middle-low grade phosphate ore [J]. Inorganic Chemicals Industry, 2020, 52(4): 33-36.
[6]	Chen Shurui,Yang Shaoli,Ma Lan,Hou Jing. Study on leaching of titanium gypsum with hydrochloric acid [J]. Inorganic Chemicals Industry, 2020, 52(2): 65-68.
[7]	Jin Jianhua,Zhou Chengcai,Feng Zhanming. Study on leaching process of strontium carbonate residue with hydrochloric acid and ammonium chloride [J]. Inorganic Chemicals Industry, 2020, 52(11): 43-46.
[8]	Ma Aiyuan,Zheng Xuemei,Li Song. Study on leaching process and kinetics of zinc extraction from metallurgical slag and dust with ammonia [J]. Inorganic Chemicals Industry, 2020, 52(11): 69-74.
[9]	Zhang Hejie,Li Ping,Chen Xin,Wang Hongyan,Zheng Shili,Zhang Yi. New process research on removal of Fe and Al from MnSO₄ leaching solutions of manganese metallurgy by in situ neutralization precipitation [J]. Inorganic Chemicals Industry, 2019, 51(9): 67-71.
[10]	Wu Jun，Cheng Wen，Quan Xuejun，Wu Haifeng，Li Gang，Luo Huazheng. Acid leaching detoxification and leaching behavior of chromite ore processing residue [J]. Inorganic Chemicals Industry, 2019, 51(7): 64-67.
[11]	Huang Xianghao,Ke Changmei,Yang Jintang,Chen Mei,Ke Haibo,Yu Jinzhao. Study on gold leaching from discarded computer circuit boards by thiourea process [J]. Inorganic Chemicals Industry, 2019, 51(6): 62-64.
[12]	Feng Jianhua,Zhou Tong,Li Yijing,Guo Yong,Lu Xiaofeng. Preparation method of nickel sulfate from spherical nickel oxide [J]. Inorganic Chemicals Industry, 2019, 51(3): 53-56.
[13]	Zhang Pinghua,Yan Yunjie,Chen Jianjun,Wang Hongyan,Zhang Chunli,Wu Ning. Preparation of nanometer calcium carbonate from high-Ca-Mg phosphorus tailings by acid leaching [J]. Inorganic Chemicals Industry, 2019, 51(3): 63-66.
[14]	Qing Penghui1，2，3，Zhang Hongling1，2，Shi Yilang4，Cai Zaihua4，Mei Haijun5，Xu Hongbin1，2. Effect of additive on oxidative roasting process of chromite [J]. Inorganic Chemicals Industry, 2019, 51(12): 26-29.
[15]	Zhang Lizhen1，2，3，Zhang Yongxing1，2，3，Zhang Xiufeng1，2，3，Tan Xiumin1，2，3. Extraction of lithium，potassium，rubidium and cesium by chlorination roasting-water leaching process [J]. Inorganic Chemicals Industry, 2019, 51(10): 48-50.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Study on optimization of leaching conditions of pyrite cinder with sulphuric acid

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 10