Coaltech Research Association

The Amenability of Some South African Bituminous Coals to Binderless Briquetting

SJ Mangena

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 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.

R1500,00

Description

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R1500,00

Economic Coal Resources of the Highveld, Ermelo, South Rand and Sasolburg-vereeniging Coalfields

Grant van Heerden

2004

Comparative ranking of coalfields inside and outside South Africa on exploration level, resource size and infrastructure, for companies deciding where to explore next.

What this report foundA rating and ranking system was applied to South African coalfields and, separately, to the coal bearing countries elsewhere in the Southern African...

R1500,00

R1500,00

Grant van Heerden

What this report found

A rating and ranking system was applied to South African coalfields and, separately, to the coal bearing countries elsewhere in the Southern African Development Community. The Waterberg ranked highest in South Africa and is the coalfield most worth detailed investigation as Witbank output declines. Botswana ranked highest among the other member states on contained resources and exploitation potential.

BCI Chemical Research & Analysis – Calcium & Magnesium

Jacques Magliolo

2012

Desk research on two mine water by products, closing out the economic analysis behind proposed brine treatment plants, for readers judging whether recovered salts can be sold.

What this report foundPrices for calcium and magnesium sulphate are recorded for South Africa and for world markets as at mid 2012, together with price trends and the groundwater...

R1500,00

R1500,00

Jacques Magliolo

What this report found

Prices for calcium and magnesium sulphate are recorded for South Africa and for world markets as at mid 2012, together with price trends and the groundwater chemistry that governs which salts a mine water stream will yield. The figures were assembled to support feasibility studies on a eutectic freeze crystallisation plant and an ion exchange plant.

R1500,00

GJ de Korte

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