Search Documents

Validation and Application of Filtration Theory to Plate and Frame Pressure Filtration - From Laboratory to Full Scale

Sep 13, 2010

Recovery of Rhenium from Mineral Raw Materials of Kazakhstan

Sep 13, 2010

Integrated Utilisation of Desulfurisation and Skimming Slag

Sep 13, 2010

The Pacific Rim countries ofAustralia, New Zealand, Papua New Guinea, Indonesia, Fiji, Philippines and Solomon Islands will be reviewed from an equity investors perspective.   The following areas will be covered: Country risks Exploration spending and activity Project development Taxation Relative cost of doing business Environmental considerations Political/bureaucratic situations Capital raising Equity markets as a source of funds Developing market funds The aim of the paper will be to outline the most attractive areas for investment by equity and private funds plus documenting the changes needed in the less favourable countries if they are to attract investors.

Jan 1, 1995

Mechanism of Modified Sodium Silicate on Fluorite Ore Flotation

Sep 13, 2010

Efficiency, Economics, Energy and Emissions - Emerging Criteria for Comminution Circuit Decision Making

Sep 13, 2010

Promoters for Soap Flotation of Phosphate Minerals

Sep 13, 2010

Determination of Porosity and its Influence on Specific Surface

Sep 13, 2010

Comparison of Discretised Population Balance (DPB) and Finite Element Method (FEM) Methodologies for Modelling Batch Gibbsite Precipitation

Sep 13, 2010

Recovery of Vanadium from Stone Coal Through an Environmentally Friendly Acid Leaching Technology

Sep 13, 2010

A New Cell for Electrochemically Aided Flotation

Sep 13, 2010

Temperature Sensitive Polymers as Efficient and Selective Flotation Collectors

Sep 13, 2010

Inhibition of Bubble Coalescence by Salts and Sugars

Sep 13, 2010

Investigation on Comprehensive Utilisation of Nickel Slag from JNMC

Sep 13, 2010

Generation and Attachment of Submicron Size Bubbles to Colloidal Solids

Sep 13, 2010

Coal Preparation Research at Turkish Coal Enterprises (TKI)

Sep 13, 2010

Study on a Novel Polymer/Bentonite Compound Adsorbent for Removal of Cu(II) from Aqueous Solution

Sep 13, 2010

By Taylor L. M

Accurate computer prediction of the muck pile produced by a conventional blast requires modeling of the physics that occurs during the rock motion phase of a blast. The ability to predict the motion and the subsequent muck pile can have a significant economic impact on the mining industry. Some of the computer programs previously used to predict rock motion employed polygonal elements with comers and sides to model the rock (Cundall, 1971; Walton, 1982; Taylor, 1983). This approach allows the elements to bulk because of the corners and the aspect ratio. However, tracking the many interactions of the comers and sides of the elements is a computationally intensive process. Several other rock motion computer programs were developed that employed spherical elements, (Schamaun, 1984; Gorham-Bergeron et al, 1987) but they lacked correct bulking mechanisms or could not be vectorized for efficient execution on vector processing machines. A new spherical element code called DMC (Distinct Motion Code) (Taylor and Preece, 1989a, 1989b) has been developed this past year. DMC was designed and written to take advantage of super-computer vector processing capabilities. The efficiency has also been increased through the use of spherical elements, explicit time integration and a new contact search algorithm. When spherical elements were chosen for efficiency, some physically correct mechanisms for capturing the bulking behavior of the rock mass also had to he developed. This paper will treat several mechanisms that were developed to allow spherical elements to exhibit correct hulking behavior.

Jan 1, 1990

Research and Application of Vertical Screw Stirred Mill

Sep 13, 2010

Ecological Fuel from High-Sulfur-Content Coal

Sep 13, 2010