Two-dimensional correlation analysis of continuous online in situ ATR-FTIR on the adsorption of heptyl xanthate at the surface of ZnS and Pb(II) activated ZnS

Shen，Qi1; Zhang，Yun Hui1; Fan，Ying Ju1; Xu，Zhenghe2; Sun，Zhong Xi1

2019-12-01

10.1016/j.mineng.2019.106019

MINERALS ENGINEERING   影响因子和分区

0892-6875

Zinc sulfide (ZnS) is an important and widely used semiconductor material. To improve the flotation efficiency of zinc minerals and explore corresponding mechanisms has been a central topic of flotation technology and flotation chemistry. ZnS with a high purity and a large surface area was synthesized using zinc nitrate as a zinc source and sodium sulfide as a sulfur source in the laboratory. The synthetic ZnS was then activated with lead nitrate in order to understand involving mechanism and consequently improve its flotation efficiency with xanthates. The adsorption of heptyl xanthate (KHX) at the surface of ZnS and Pb(II) activated ZnS were examined as a function of time using continuous online in situ attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. The two-dimensional IR correlation analysis indicates that lead xanthate and zinc xanthate coexisted on the Pb(II) activated ZnS surface and lead xanthate formed prior to zinc xanthate at the surface of Pb(II) activated ZnS. The activation by lead ions increased the adsorption amount and rate constant of KHX. The KHX adsorption onto both ZnS and Pb(II) activated ZnS obeys the pseudo first order kinetic model and the desorption with deionized water is negligible after 20–30 min.

Adsorption Continuous online in situ ATR-FTIR Heptyl xanthate Two-dimensional infrared spectroscopy ZnS

SCI ; EI

英语

其他

National Basic Research Program of China[2011CB933700]

Engineering ; Mineralogy ; Mining & Mineral Processing

Engineering, Chemical ; Mineralogy ; Mining & Mineral Processing

WOS:000493222500010

PERGAMON-ELSEVIER SCIENCE LTD

20194007486554

Adsorption ; Correlation methods ; Deionized water ; Efficiency ; Flotation ; Fourier transform infrared spectroscopy ; Heptane ; II-VI semiconductors ; Mineral exploration ; Nitrates ; Rate constants ; Semiconducting zinc compounds ; Sodium sulfide ; Sulfur compounds ; Supersaturation ; Wide band gap semiconductors ; Zinc ; Zinc sulfide

Water Treatment Techniques:445.1 ; Exploration and Prospecting Methods:501.1 ; Zinc and Alloys:546.3 ; Compound Semiconducting Materials:712.1.2 ; Chemistry:801 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2 ; Production Engineering:913.1 ; Mathematical Statistics:922.2

GEOSCIENCES

2-s2.0-85072710273

Scopus

1.School of Chemistry and Chemical EngineeringUniversity of Jinan,Jinan,250022,China
2.Department of Materials Science and EngineeringSouthern University of Science and Technology,Shenzhen,518055,China

Shen，Qi,Zhang，Yun Hui,Fan，Ying Ju,et al. Two-dimensional correlation analysis of continuous online in situ ATR-FTIR on the adsorption of heptyl xanthate at the surface of ZnS and Pb(II) activated ZnS[J]. MINERALS ENGINEERING,2019,144.

Shen，Qi,Zhang，Yun Hui,Fan，Ying Ju,Xu，Zhenghe,&Sun，Zhong Xi.(2019).Two-dimensional correlation analysis of continuous online in situ ATR-FTIR on the adsorption of heptyl xanthate at the surface of ZnS and Pb(II) activated ZnS.MINERALS ENGINEERING,144.

Shen，Qi,et al."Two-dimensional correlation analysis of continuous online in situ ATR-FTIR on the adsorption of heptyl xanthate at the surface of ZnS and Pb(II) activated ZnS".MINERALS ENGINEERING 144(2019).