The Project consists of sediments from the cretaceous and tertiary periods deposited in a large basin situated in the southern part of the Republic of the Congo, northwestern part of Angola and the western part of the Democratic Republic of the Congo.
Phosphate rock is usually beneficiated into a rock phosphate concentrate and is rarely suitable for directly application as a fertilizer. In phosphate fertilizer terminology, phosphate ore usually refers to unprocessed phosphate from the mine, and rock concentrate usually refers to the beneficiated phosphate suitable for further downstream processing into phosphoric acid and other phosphate products.
Phosphate rock (whether igneous or sedimentary) is often called apatite. The name apatite derives from the Greek word apate, meaning deceit. An appropriate name for a mineral with many deceptively different forms. Both ore types may vary considerably in chemical and mineralogical composition, and consequently many beneficiation processes have evolved to treat the different phosphate ore deposits. Most often the objective of beneficiation is to produce phosphate rock suitable for making phosphoric acid and granular phosphatic fertilizers. The most important use of phosphate rock is in the production of phosphate fertilizer for agriculture and over 80% of the global production goes into fertilizer.
Combining results from the Company’s drilling program and historical drill data, Minbos had previously delineated a total resource of 391.3Mt @ 9.2% P2O5 , including 24.8Mt @ 11.5% P2O5 , at the Cacata deposit.
In phosphate fertilizer terminology, phosphate ore usually refers to unprocessed phosphate rock from the mine, and rock concentrate usually refers to beneficiated phosphate rock suitable for further downstream processing into phosphoric acid and other phosphate products.
Over the past 18 months, greenhouse trials have been conducted by the International Fertilizer Development Center (IFDC) with Cabinda Project phosphate rock. A Cabinda Rock Phosphate/Water Soluble Phosphate (WSP) blend was applied as tablets to four crops including: winter wheat, maize and residual maize and sorghum in soils ranging from 4.8 to 7.8 ph. The trials are ongoing.
Blended Cabinda Phosphate Rock with Water Soluble Phosphate (WSP) fertilizer, performs with similar relative agronomic effectiveness to the WSP concentrate but at a significant economic advantage in crops, soils and climate typical to Angola.
Angolan soils, crops and climate are ideally suited for WSP enhanced rock phosphate which prefers moist acidic soils and staple crops such as cereals and legumes.
Much of the population in Angola live in the rural areas and are dependent on agriculture, a locally produced enhanced phosphate rock will promote agricultural productivity gains and reduce on food import dependence.