COMPUTER PROCESS CONTROL
This is the second of a 2-part article on computerized process control. Part 2 begins where last month’s instalment ended — with a discussion of grinding. The example to be discussed in this sectio…
News
50 Years Ago OTTAWA CONDUCTS SURVEY OF GASPE PENINSULA
The continued efforts of the Hon. Onesime Gagnon, Quebec minister of mines and fisheries, toward the development of the Gaspe peninsula will again bear fruit this summer. He was recently advised by th…
50 Years Ago GOLD HOLDINGS SURRENDERED TO BRITISH GOVERNMENT?
One of our readers asks: Is it true that gold holdings of individuals in England had to be turned over to the government? All private holdings, both of coin and bullion, must be offered to the Bank of…
Mine Visit DAKOTA VISIT
Four heap leachers are establishing themselves in the northern Black Hills area of South Dakota. Wharf Resources, with its Annie Creek and Foley Ridge pits, is the elder statesman. The others — MinVe…
New Wear System
A mechanically attached wear protection system called Kwick-Lok has been introduced by esco of Port Hope, Ont. It is designed to reduce abrasion in fel buckets, shovel dippers, chute liners, face shov…
50 Years Ago METAL MINES GEARED FOR WAR
Canada’s base metal mines are preparing themselves to meet whatever demand arises from the German War, and they appear to be already substantially advantaged by the swift advance in metal prices. Not …
PRESCRIPTION FOR THE INDUSTRY
The continued health of Canadian mining Faced with a struggle to survive, Fthe mining industry in Canada Fhas made tremendous strides in the past six years. In some firms, productivity has doubled in …
Letters Evaluation Problems
I wish to comment on Kerry Knoll’s review of several largely unsuccessful new mines, as published in your June, 1989, issue (see “And Now the Bad News”). I have had no professional association with an…
COLOMAC COUNTDOWN
“Welcome to Fantasy Island,” says the neatly- lettered sign on the road from the Colomac airstrip to the bustling site near Steeves Lake in the Northwest Territories. And skeptics believe this really …
Innovations MANTLES, THIOSALTS AND MILLS
Mineral Processing engineers attending the International Conference on Autogenous and Semi-Autogenous Grinding (sag) in Vancouver this month will no doubt be interested in speaking with a representati…
BASE METAL COMEBACK
These days only the most promising exploration projects capture the interest of investors or catch the eye of cash-rich major mining companies looking for joint-venture opportunities. A country-wide s…
THE POWER OF PEDDLING
The ingenious and complex chain of companies that De Beers has set up to market diamonds worldwide has been called the most successful cartel of the century. The Central Selling Organization (cso) was…