Results 11 to 20 of about 559,820 (160)

Estimation of the wear rate associated with ball mill of Mahd Ad Dahab Gold Mine, Saudi Arabia (KSA) [PDF]

open access: yes, 2018
Purpose. This study aims to estimate the wear of the middle chrome grinding balls in both dry and wet grinding media. The selected ball mill for this study is located at Mahd Ad Dahab Gold Mine, Saudi Arabia. Methods.
Abdelhaffez, G
core   +1 more source

Grinding Aids

open access: yesKONA Powder and Particle Journal, 2014
The use of chemical additives for improving the efficiency of both wet and dry comminution is reviewed. Although such additives can affect breakage strength under general comminution conditions crack velocities are ...
Douglas W. Fuerstenau
doaj   +1 more source

Development of a New Method of Storage and Maximum Separation of Chlorophils From Chlorophylcontaining Vegetables at Reception of Healthfull Nanoproducts [PDF]

open access: yes, 2018
The aim of the work is the development of a new way of deep processing of chlorophyll-containing vegetables that gives a possibility not only to preserve chlorophylls a and b and other biologically active substances (BAS) of raw materials, but also to ...
Bessarab, O. (Olexandr)   +7 more
core   +2 more sources

Effects of concentration of dispersions on particle sizing during production of fine particles in wet grinding process [PDF]

open access: yes, 2011
Stirred media milling is a prospective technology for producing colloidal dispersions by means of wet grinding process. In the past, many researchers have studied the effects of different operating parameters such as size, shape, nature and quantity of ...
Frances, Christine   +2 more
core   +2 more sources

A discussion on the measurement of grinding media wear

open access: yesJournal of Materials Research and Technology, 2016
Comminution operations are the most expensive and energy consuming in the mineral industry. Any action aiming at reducing the costs associated with that step is welcome, and lowering the consumption of grinding media figures among the main concerns ...
Camila Peres Massola   +2 more
doaj   +1 more source

Towards a virtual comminution machine [PDF]

open access: yes, 2008
Towards the end of the 1990s readily available personal computers became sufficiently powerful - when combined with an efficient numerical code - to use discrete element modelling (DEM) in two dimensions for models involving a few hundred to a few ...
Cleary, P. W., Morrison, R. D.
core   +1 more source

Numerical modelling of grinding in a stirred media mill: Hydrodynamics and collision characteristics [PDF]

open access: yes, 2010
Producing nanoparticles in dense suspensions can be achieved in a stirred media mill. However the mechanisms of fragmentation in the mill are still not fully understood and the process remains laborious because of the large amount of supplied energy.
Anne-Archard, Dominique   +4 more
core   +2 more sources

Impactor flux and cratering on Ceres and Vesta: Implications for the early Solar System [PDF]

open access: yes, 2011
We study the impactor flux and cratering on Ceres and Vesta caused by the collisional and dynamical evolution of the asteroid Main Belt. We develop a statistical code based on a well-tested model for the simultaneous evolution of the Main Belt and NEA ...
Asphaug   +33 more
core   +3 more sources

Energy in Clod-Size Reduction of Vibratory Tillage [PDF]

open access: yes, 1969
The objective of mechanical manipulation of the soil (tillage) in production of agricultural crops is to produce soil conditions and environment favorable to crop growth by changing bulk density, soil-aggregate size distribution and other characteristics
Buchele, Wesley   +2 more
core   +3 more sources

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

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