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At CPA we believe that ore bodies discovered in future will be bigger and higher grade than the ones currently known and set out targets accordingly. Discoveries over the last three decades substantiated this approach.

Jan 1, 1987

By Mukherjee R, Bandopadhyay S

Three applications of fuzzy logic in mineral exploration show the possibility of providing feasible solution and allow greater freedom in decision-making processes for geoexploration data which may be ill- defined, biased or where apriori infor

Jan 1, 1998

I will confine my remarks to normal computers that people interact with, rather than built-in processors which exist in every watch and washing machine these days. I will also confine myself to computing in the technical side of mining. Bu

Jan 1, 1998

By Kidd A

The operations of Minerals Mining and Metallurgy Limited's (MM) South mine including both the mining and metallurgical aspects are described. After treating the history of the company, the geology of and the mining of the open pit are given including sections on pit design, mine planning and grade control. Details of the metallurgical process develognent lead into the current treatment practice and then sane thoughts on future programmes are presented.

Jan 1, 1983

By Leaning R. W, Goodman P. J, Lidgate P. N

The impact of computer based design tools on the engineering industry has been enormous. With the advent of computer aided design and its continual evolution into tools such as 3D design and photogrammetry the face of the engineering office ha

Jan 1, 1998

Aspects and anomalies in the present Standard Specifications for Blended Cements which may have operated in Australia against the development of the greater use of Slag Blended Cements are noted. Estimates of slag and ash usage in Australia are given and the need for further research with local materials stressed.

Jan 1, 1979

The new field of environmental investiga tions introduces new problems of ethics, res- ponsibility, conflict of interest and technical procedures. Such investigations involve four elements: developer, consultant, approving authority and the public. It is essential that the consultant provide technical competence, speed and efficiency, impartiality and credibi- lity. Despite allegations to the contrary, it is not in the consultant's own best interest to omit, ignore or obscure significant adverse en vironmental impacts.

Jan 1, 1975

Problems encountered in the design, construction, acceptance, commissioning and early operation of the electrolytic zinc plant at Port Pirie are reviewed. Recommendations based on the author's experience are made for proper control of each phase of the development of new plants.

Jan 1, 1971

This paper shows how small calculators can be used for ball mill simulations. Two calculations are examined, the first to calculate the mill parameters and the second to predict the mill product. In the case of small programmable calculators the programs for two common models are given.

Jan 1, 1976

Lime is the common reagent used for pH control in cyanide gold circuits. Lime can be supplied as either quicklime (CaO) or 'hydrated lime(Ca(OH)2). Both are dry powders with variable flow properties. These properties demand special attention when designing machin- ery to handle them.

Jan 1, 1987

The success of the In-Plant dust collection at the Albion Reid Quarry Plant situated at Para Hills, South Australia, is discussed in the light of co-operation at the design stage with particular emphasis on the duct- work and filter design. Other dust control facilities at the Plant are mentioned.

Jan 1, 1976

By D A. Aitzhanova, E Zh Omirzakova

The Republic of Kazakhstan has well developed mining and metallurgical complex. In modern conditions, when deposits of useful minerals are running thin, it is very important to find additional sources for obtaining necessary products. As our investigations showed different kinds of waste may be used for producing of different kinds of products, which are successfully applied in different branches of KazakhstanÆs economy. Analysis of ways for increasing of complex use of mineral raw materials of different deposits, widening raw mineral materials base and decreasing negative effects on the environment, are presented in this paper.

Jan 1, 2003

By Morris A. E

The thermodynamically-based pyrometallurgical simulation software STEPSOL (Version 3.0) provides for the modelling of activities using the Interaction Parameter Model, the Regular Solution Model, the Sub-Regular Three Suffix Margules Model, the Sub-Regular Four Suffix Margules Model and various simpler polynomial models. These are briefly reviewed, along with the major sources of data available in the literature, and the implementation of the models in the program.

Jan 1, 1992

Management at all levels continually strive to optimise, or make the most of resources available to them. Daily, decisions are being made on how to most efficiently locate and exploit an ore body, then process and market the recovered metal. At one level this optimisation process in the Australian mining industry appears to be successful, for example, witness the improvement in productivity and reduction in operating costs through the 1980s. Yet, at another level the industry's performance has been appreciably below expectations as measured by rate of return criteria. Companies likely to exhibit superior performance are those that are able to co-ordinate, through good planning, the optimisation process at all levels of the organisation. An important role for general management is therefore to provide the context or boundary conditions in which optimisation can Proceed.

Jan 1, 1991

Consolidated Rutile Limited's (CRL) operations incorporate the exploration, mining, processing, marketing and distribution of mineral sands. This paper outlines the current scope of CRL operations in vegetated sand dunes on North Stradbroke Island (NSI), Queensland. Included are some specific comments relating to design and construction of high capacity dredges which float in artificial ponds and are an integral part of mining high dune ore reserves. Three floating cutter suction dredges with combined sand throughput capacity in excess of 7000 tph are used in mining operations on NSI. Initial processing is by gravity and magnetic methods on large wet concentrators also floating in the artificial ponds. Spiral sluices are used exclusively in the newest concentrator, which has the highest recovery of heavy minerals.

Jan 1, 1986

By Rashkovski GB

Until recently amalgamation has been the main process forextracting large gold particles from gravity concentrates obtainedduring the dressing of ores and placer gold deposits.Development of new technology for treating the gravityconcentrates was necessary because of the harmful effect ofmercury on subsequent production processes and theenvironment. The harmful effect of mercury is particularlyevident in the resin-in-pulp process that is widely applied inRussia.

Jan 1, 1993

The short review of hydrogeologic conditions in the three Polish coal basins have been presented as the background for the prevention measures against water inrushes being underta- ken in coal mines. The Polish mine safety regulations concerning water inrush prevention have been discussed, namely: - classification of sources of the potential water inrushes, - levels of water inrush risk and conditions of mining operation in the mines facing particular risk levels, - determination of the -di.mens.ons.of protecting pillars to prevent water inrush to mines, protection of surface water reservoirs and their earth embankments in regions submitted to mining deformations. Three examples of coal mining being carried out under water bodies have been presented.

Jan 1, 1988

By Ellis CG

The N.S.W. Department of Mineral Resources commissioned its first Mobile Gas Laboratory in 1973.Although originally intended for diesel exhaust analysis, it has been progress- ively made more suitable for mine air analysis. Currently there are two upgraded units in operation. These laboratories have been used at the scenes of four mine fires, two mine explosions and three recovery operations. The authors' experience jointly covers all of these incidents. In this paper they recount the role of the Mobile Laboratory in each incident - including the difficulties encountered - and trace the development of these units to their present state. Future improvements are foreshadowed, and some comments offered concerning the likely future role of these vehicles in mine Emergencies.

Jan 1, 1981

The aim of this paper is to broadly review the purposes of valuations and the methods used to calculate them. Examples are provided by coal and alluvial gold properties. Important factors are consistency, how to deal with uncertainty, and the selection of discount rates. The purposes of valuation are seen as: 1.  valuations for sale; within this category are sales to third parties, sales between partners, and vendor valuations for prospectuses; 2.  to provide bankable estimates for financing; and 3. to provide values for local body rating. The methods used depend on the purpose of the valuation and the amount of information to hand.

Jan 1, 1988

By Premur V

In industry and power production and distribution large quantities of fine wastes are produced. These are above all fly ash and phosphogypsum. Attempts are made to use them as secondary raw materials in industry and construction. Since they contain dangerous and harmful components or are nonhomogeneous their direct application is limited so that they are treated as waste. This paper reports on tests conducted with the aim of agglomerating the mentioned fine industrial wastes by pelletisation. The aim of this resarch was to obtain agglomerated product suitable for handling, transport and dumping. At the same time efforts were made to incapsulate harmful components by producing pellets with protective shells. Next, pellets without binders and with different binders were produced. Strength, resistance to freezing and solubility of pellets were tested. All the fine industrial wastes under survey were found to be suitable for pelletisation. The utilisation of appropriate binders ensures pellet strength required for safe handling and ecologically sound deposition of pelleted Material.

Jan 1, 1993