DEPARTMENT: MECHANICAL ENGINEERING
COURSE: MINING AND MINERAL PROCESSING ENGINEERING
YEAR: 5TH
NAME: OMBIRO SAMMY O.
REG: EN293-0114/06
UNIT: SELECTED MINERAL MINING METHOD I
THE KENYA FLOURSPAR
HISTORY
The fluorite (CaF2) deposits were discovered by prof. Al Amin in 1967 in the areas of Kimwarer, Choff and Kamnaon. He was searching for semi-precious stones, and initially mistook the purple fluorite for gemstone. He therefore collected the sample and took them for analysis in Mombasa. It was later found to be fluorite.
A hand-mining operation was started and the fluorspar was supplied to the Bamburi Portland Cement Company in Mombasa. At its peak, the operation, which relied on donkeys to transport the fluorspar, produced around 400 tons per month of high grade fluorspar.
In 1971 the Fluorspar Company of Kenya (FCK) was established, under the auspices of the Kenya government, to exploit the deposits on a larger scale. Crushing and jigging plants were later put up at mining site for large scale production of the metallurgical grade.
Kenya fluorspar was a state parastatal upto 1996 when it was privatized. It is currently owned by local and foreign investors.
The company has seven active mining sites available from which ore can be mined depending on the grade and quality required.
In 2003 the company obtained made a major investment in earth-moving equipment and plant upgrading.
The deposit has been commercially mined since 1971. Initially, metallurgical grade fluorspar was produced. In 1975 a 100,000 ton per annum acid grade fluorspar concentrator was commissioned and by 1979 metallurgical grade fluorspar was no longer produced as primary product, but can still be produced as secondary product for smaller consignments.
The Kimwarer ore deposit has now been mined for over 35 years
It is an EPZ (Export processing zone).
LOCATION
Kenya Fluorspar is a concern based in the Kerio