The treatment of copper ores, both oxides and sulfides by means of flotation, hydrometallurgy or other processes has been well established for many years. Flotation
Fine Coal Recovery and Mine Backfill Preparation: The coal mines in the Sunnyside, Utah, area have been mined continuously since 1896 and prospered as Bee Hive
Backfill Preparation Plant: Mine roof support problems were a major concern that necessitated the use of backfill to supplement conventional means of support. Roof supports account
The world demand for gold and international economic pressures for an advance in price have accelerated interest in gold and silver production. Many opportunities exist
An important potash producer in Europe uses this simple, useful unit for sampling the pulp in their thickeners. It is particularly applicable to any potash
This Rod Mill —Ball Mill grinding team is in operation at a new 500 ton-per-day, base metal, selective flotation mill. Preliminary Grinding Tests Without Charge
The recovery of silver minerals occurring in a lead- zinc sulfide ore is efficiently accomplished using the above flowsheet. The process consists of selective flotation
There are many forms of these, and to describe them would of itself fill a volume. A simple generator for hydrogen sulphide, carbon dioxide or
Gases, Drying and Absorbing.—For this purpose U-tubes, potash bulbs, calcium chloride tubes and calcium chloride jars are used. U-tubes, Fig. 103, are made in a