The plant is expected to process more than one million tons of ore and yield approximately 100,000 oz gold in 1989. That production level is expected to push Newmont’s gold output to 1.4 million oz in 1989.
Final cost for the new milling complex, which includes tailings dam, primary crusher, and a 3,500-ft long overland conveyor, is estimated at $80 million(US), the company said.
Commenting on the start-up, Peter Philip, president and chief operating officer, said the completion of mill No 4 “marks the successful culmination of the vast expansion program begun in 1987. As part of the 2-year program, the company has added three mills, three leach plants, and various support facilities. As a result, gold production has nearly tripled between 1986 and our expected output this year. The employees of Newmont Gold are to be commended for a job well done.”
The expansion program has increased Newmont Gold’s total milling capacity from 13,000 tons per day in 1987 to 40,000 tons today. Leaching capacity increased from 9.2 million in 1987 to 32 million tons in 1989.
Besides treating ore from the Post deposit, the No 4 mill will also handle material from the Bootstrap/Capstone deposits where operations are scheduled to commence in 1990.
The primary crusher of this facility is designed for both mill and leach grade ore. Leach grade ore is diverted to a stockpile and hauled to the north area leach pad which treats 10 million tons of low grade ore annually from the Post, Blue Star and Genesis deposits. The mill grade ore from Blue Star and Genesis will continue to be treated at the company’s No 1 mill which is located at the Carlin mine.
]]>
Be the first to comment on "Newmont completes start-up of No 4 mill in Carlin area"