Industrial Application of Valuable Materials Generated from PLK Rock-A Bauxite Mining Waste

7th National Conference on Processing and Characterization of Materials

Swain, Ranjita^1 ; Routray, Sunita^1 ; Mohapatra, Abhisek^1 ; Patra, Biswa Ranjan^2

JRF, C.V. Raman College of Engineering, Bhubaneswar

752054, India^1

Chemical Engineering. Department, C.V. R. C. e, Bhubaneswar

752054, India^2

关键词: Bauxite;    Cut point;    Hydro-cyclone;    Overflow;    Underflows;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/338/1/012049/pdf
DOI  :  10.1088/1757-899X/338/1/012049

来源: IOP

【 摘 要 】

PLK rock classified in to two products after a selective grinding to a particular size fraction. PLK rocks ground to below 45-micron size which is followed by a classifier i.e. hydrocyclone. The ground product classified in to different sizes of apex and vortex finder. The pressure gauge was attached for the measurement of the pressure. The production of fines is also increasing with increase in the vortex finder diameter. In order to increase in the feed capacity of the hydrocyclone, the vortex finder 11.1 mm diameter and the spigot diameter 8.0 mm has been considered as the best optimum condition for recovery of fines from PLK rock sample. The overflow sample contains 5.39% iron oxide (Fe2O3) with 0.97% of TiO2and underflow sample contains 1.87% Fe2O3with 2.39% of TiO2. The cut point or separation size of overflow sample is 25 μm. The efficiency of separation, or the so-called imperfection I, is at 6 μm size. In this study, the iron oxide content in underflow sample is less than 2% which is suitable for making of refractory application. The overflow sample is very fine which can also be a raw material for ceramic industry as well as a cosmetic product.