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…
News
VACUUM OIL PURIFICATION
Premium-grade lube and hydraulic oils are the life blood of of most mining and milling machinery. To be reliable, a machine must operate on clean oil. For this to be possible, operators must either c…
Managing MID-LIFE MUDDLE
Often the things I write about Oare the very things I’m strugOgling with. This article is a particularly tough one. As I consider what has been termed the “mid-life crisis” and the implications of ea…
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…
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…
Editor’s Note FUTURE TENSE
In the picturesque Black Hills of South Dakota, heap leachers are learning at an accelerated pace what mining companies across the continent are discovering: people want action on environmental concer…
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 …
Body-cooler
A novel man-cooling system has been introduced to the mining industry by Vortec Corp. of Cincinnati, Ohio. The system consists of a helmet with attached cape for body, a vest which distributes cool ai…
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…
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…
SINGLE-BOOM JUMBOS
How do manufacturers rate Htheir own drifters? By impact Henergy? If so, is that figure calculated or is it measured? Manufacturers that recommend a particular drifter for a given hole diameter may ha…
First Aid for Acid Burns
The only commercially available preparation available for skin burns caused by hydrofluoric acid is being marketed by Pharmascience Inc. of Montreal, Que. H-F Antidote Gel is a calcium gluconate gel t…