Post by pling on Dec 31, 2015 12:51:49 GMT
Fra nordicmining.com 29. november 2013
- The preliminary techno-economic study for the “Alumina from Anorthosite project” indicates industrial potential for the developed technology. Cost estimations for a brownfield production plant show positive project financials for an annual production of around 900,000 tonnes of alumina from anorthosite. The financial estimates are sensitive to the degree of acid regeneration and energy recovery, and therefore improvements in these areas will be focused in the further process development. The financial estimates can be improved by moderate sales of by-products from the processing.
- The study was done for a brownfield alumina plant with production capacity of around 900,000 tonnes. Capital cost for the plant has been estimated to around NOK 3.7 billion (indicated accuracy +/- 35%). The study indicates a positive project NPV of NOK 0.6 billion excluding sales of by-products based on a 7.5% discount rate. The financial estimates are sensitive to the degree of regeneration of acid and energy recovery. An energy recovery of 75% and a 90% regeneration of acid have been assumed. The potential for improvements in these areas will be important in the further project development.
- The study also shows that an income from by-products produced in the process, silica and PCC (Precipitated Calcium Carbonate), can significantly improve the project financials. A scenario with moderate assumptions for production and sale of these by-products indicates a project NPV of around NOK 2.7 billion based on a 7.5% discount rate.
- The preliminary techno-economic study for the “Alumina from Anorthosite project” indicates industrial potential for the developed technology. Cost estimations for a brownfield production plant show positive project financials for an annual production of around 900,000 tonnes of alumina from anorthosite. The financial estimates are sensitive to the degree of acid regeneration and energy recovery, and therefore improvements in these areas will be focused in the further process development. The financial estimates can be improved by moderate sales of by-products from the processing.
- The study was done for a brownfield alumina plant with production capacity of around 900,000 tonnes. Capital cost for the plant has been estimated to around NOK 3.7 billion (indicated accuracy +/- 35%). The study indicates a positive project NPV of NOK 0.6 billion excluding sales of by-products based on a 7.5% discount rate. The financial estimates are sensitive to the degree of regeneration of acid and energy recovery. An energy recovery of 75% and a 90% regeneration of acid have been assumed. The potential for improvements in these areas will be important in the further project development.
- The study also shows that an income from by-products produced in the process, silica and PCC (Precipitated Calcium Carbonate), can significantly improve the project financials. A scenario with moderate assumptions for production and sale of these by-products indicates a project NPV of around NOK 2.7 billion based on a 7.5% discount rate.