Coaltech Research Association

Additional Regional Gravity Survey of the Waterberg Coalfield and Regional Interpretation of the Gravity Geophysical Data

by C.J.S. Fourie & R.H. Stettler | November 2010

R1500,00

Description

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Guideline for Mine Closure Relinquishment Criteria

2023

Review of closure and relinquishment law in Australia, Canada and South Africa, with four mechanisms for reaching agreement compared. For closure planners and regulators.

What this report foundRelinquishment criteria follow from the agreed post-mining land use. The land use is the goal and the criteria measure whether it has been reached.

R1500,00

R1500,00

What this report found

Relinquishment criteria follow from the agreed post-mining land use. The land use is the goal and the criteria measure whether it has been reached. The guideline sets out a framework for approving those criteria at each mining phase, from the initial environmental management plan through to decommissioning, and compares South African practice with Australian, Canadian and international guidance.

The Amenability of Some South African Bituminous Coals to Binderless Briquetting

SJ Mangena

2001

Laboratory compaction work with testing of compressive, abrasion and water resistance, giving steam and metallurgical coal producers a basis for judging which fines can be agglomerated.

What this report foundNine bituminous coals from the Witbank, Waterberg and Soutpansberg coalfields all formed compacts without a binder, and the process worked better with coking...

R1500,00

R1500,00

SJ Mangena

What this report found

Nine bituminous coals from the Witbank, Waterberg and Soutpansberg coalfields all formed compacts without a binder, and the process worked better with coking coals. Reactive maceral content, free swelling index and Hardgrove grindability index governed briquette strength, with ash and kaolinite contents also contributing to bonding. Briquetting pressure, feed moisture and particle size distribution controlled the outcome.

Evaluate the Remaining Resources of Low Phosphorus Coal in Mpumalanga Province

D.S. Xaba

2004

Assessment of remaining metallurgical grade coal in the Witbank, Highveld and Ermelo coalfields from national borehole records, for resource planners and buyers of reductant coal.

What this report foundTonnage estimates for the remaining low phosphorus resource could not be produced, because the phosphorus analyses supplied by mining companies did not state...

R1500,00

R1500,00

D.S. Xaba

What this report found

Tonnage estimates for the remaining low phosphorus resource could not be produced, because the phosphorus analyses supplied by mining companies did not state what had been measured. Distribution trends were still mapped. Coal at or below 0.010 per cent phosphorus is widespread in the Witbank Coalfield, restricted to the far northwestern Highveld, and follows a northwest to southeast band in eastern Ermelo.

Determine Possible Means to Conduct Large Scale Frictional Ignitions Tests, and the Value of These to Coaltech

T F Ngobeni

2017

A scoping exercise based on technical enquiries to mine safety organisations and discussions at an international conference, aimed at rock engineers and safety practitioners weighing test facility investment.

What this report foundNo operating full scale frictional ignition test facility was found anywhere in the world, and building one was judged expensive, impractical and unlikely to...

R1500,00

R1500,00

T F Ngobeni

What this report found

No operating full scale frictional ignition test facility was found anywhere in the world, and building one was judged expensive, impractical and unlikely to justify its cost against laboratory scale testing. Effort should instead go to small scale laboratory equipment using South African rocks, and to expanding geological data such as silica distribution and petrographic analysis.

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