Results 41 to 50 of about 301,019 (338)

Energy consumption analysis for natural aggregate processing and its results (Atabey, Isparta, Turkey) [PDF]

open access: yes, 2018
Purpose. This study was conducted to determine the amount of energy and water consumption in the production of aggregates for a certain period of time and also calculated the parameters that effect energy consumption in natural aggregate processing ...
Ozcelik, M
core   +1 more source

Characterization of Nitrogen Release in Modified Controlled-Release-Fertilizer using Rice Husk Biochar

open access: yesInternational Journal of Technology, 2020
Rice husk biochar was added to modify ureic fertilizer in order to control nitrogen release in two methods: (1) mixed-granule and (2) as a coating. The mixed-granule fertilizer was made of varied compositions of rice husk biochar, ureic fertilizer ...
Himawan Tri Bayu Murti Petrus   +5 more
doaj   +1 more source

Jhamarkotra phosphate ore processing plant [PDF]

open access: yes, 2009
: Low grade phosphate ore of Jhamarkotra that analyzes 16.5% P~2~O~5~ is upgraded to 34% P~2~O~5~ by a two stage flotation process after size reducing the ore to 90% passing through 200mesh using conventional equipment such as jaw and cone crushers ...
C.L Jain, Sekhar Dmr
core   +2 more sources

Topical problems concerning both methods and economy to develop mineral deposits [PDF]

open access: yes, 2018
Purpose. Development of mining enterprises adaptation to changes in conjuncture of a product market relying upon its competitiveness while reducing expenditures connected with mineral stock extraction at the expense of mining operation schedule ...
Kasianenko, L   +4 more
core   +1 more source

Structural evolution of coal sludge filter cake and optimization mechanism of combined chemicals in the process of filtration pressing

open access: yesMeitan xuebao
The structure of coal sludge filter cake has an important influence on the dewatering effect. In this study, the characteristics of the filter cake structure and its evolution law in the process of filter press dewatering were investigated by using the ...
Xiaomin MA   +4 more
doaj   +1 more source

Application of gravity separators for enrichment of South Chah-Palang tungsten ore [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2016
In the present study, the possibility of concentrating tungsten-copper vein ore in South Chah-Palang was examined using gravity separators including Jig Machine (-2360+600 μm), shaking table (-600+120 μm), and multi-gravity separator (MGS) (-120 μm). The
Hamid Hedayati Sarab-shahrak   +3 more
doaj  

Experimental Study on Flotation of a Molybdenum Mine in Inner Mongolia by LKD-3

open access: yesKuangchan zonghe liyong
In view of the problems of complex dissemination state, serious argillization and difficult to reduce tailings grade of a molybdenum mine in Inner Mongolia, LKD-3 collector was used to conduct the flotation test.
Ying LI   +6 more
doaj   +1 more source

Improved recovery of a low-grade refractory gold ore using flotation–preoxidation–cyanidation methods

open access: yesInternational Journal of Mining Science and Technology, 2014
In this work, different flotation–preoxidation–cyanidation methods are considered for treating a low-grade refractory gold ore. On the one hand, the results of selective flotation show that 22% and 31.1% of total Sb and As, respectively, remained in the ...
Soltani Faraz   +3 more
doaj   +1 more source

General formulas for drag coefficient and settling velocity of sphere based on theoretical law

open access: yesInternational Journal of Mining Science and Technology, 2015
The settlement of particles is of great importance in many areas. The accurate determination of drag coefficient and settling velocity in wide Reynolds number (Re) range remains a problem.
Hongli Yang   +3 more
doaj   +1 more source

Optimization in Eugenol Production from Clove Oil with Saponification – Neutralization Process by using Response Surface Methods [PDF]

open access: yes, 2014
The objective of this research was to obtain optimum condition in eugenol production from clove oil with response surface methods. Clove oil was founded from essential oil cluster in Batang district Central Java.
Cahyono, Bambang   +3 more
core  

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