Mid-volatile, weak coking coal known as semi-soft coking coal (SSCC) with a secondary thermal coal. Coke oven yield is substantially higher than the Newcastle SSCC coals due to lower volatile matter levels. The coal also displays low impurity levels of sulphur and alkalis. The thermal product has a high calorific value, low sulphur and nitrogen content and excellent handling characteristics and is easy to grind.
|Product Split (%)||Isaac Plains Coking||Isaac Plains Thermal||
Isaac Plains East1
|Inherent moisture (% ad)||2.5||2.4||2.5|
|Ash (% ad)||9.4||18.0||9.5|
|Volatile Matter ad||25.4||23.0||24.9|
|Fixed carbon (% ad)||62.3||55.9||63.1|
|Total Sulphur (% ad)||0.36||0.50||0.4|
|Phosphorus (% ad)||0.10||0.16||0.06|
|Crucible swell number||4||-||4|
|Hardgrove grindability index||-||65||-|
|Calorific value (kcal/kg GAR)||7,434||6,100||7,410|
1Isaac Plains East delivers a coking product slightly higher in rank, with lower phosphorous than the present IPM product. This should further broaden market opportunities for a weak coking coal from the Isaac Plains Complex.
- Commenced production in 2006 as a truck shovel operation.
- Dragline operations commenced in 2011/2012.
- Placed on care and maintenance late 2014.
- Stanmore acquired Isaac Plains in November 2015.
- Mining operations commenced in January 2016.
- Mining operations commenced at Isaac Plains East in July 2018.
- Well laid out site with mine infrastructure located along western side of lease.
- Short spur connection to Goonyella Brach Railway.
- Ease of access for potential Isaac Plains East extension via haul road.
- Close to camp accommodation facilities.
The Isaac Plains Project operates under an Environmental Authority (EA); which was first granted in 2006 by the Queensland Government for mining activities to be undertaken within ML70342. The EA sets out the environmental monitoring requirements and regulatory limits which must be met or bettered in order to continue to mine coal whilst protecting the environment.
Isaac Plains Coal Mine monitors the following environmental activities:
- Water (potable, mine affected water, natural creek flows, water releases, groundwater, receiving environment)
- Dust (personal, depositional and real-time air monitoring)
- Noise and vibration (real-time monitoring at three locations to the west and south of the mine site)
- Rehabilitation (re-contoured and re-vegetated land form)
- Coal rejects (waste from the mining process)
- Dam integrity/stability; and
- Waste (general, recyclable and regulated)
The processes and systems in place for achieving compliance are expanded upon in the following sections.
The EA was amended in January 2018 to incorporate the new Isaac Plains East mining operation.