CONTROL DENSITY OF THICKENER DISCHARGE
DIAPHRAGM PUMP WITH AUTOMATIC STROKE ADJUSTMENT ACCURATELY CONTROLS DENSITY OF THICKENER DISCHARGE is through his aggressive leadership of our Research and Development Department that many new and improved machines have been developed. Exacting control of thickener underflow density is a critical point in many operations. Normally it is desirable to maintain the highest possible underflow density […]
Acid Leaching – Copper Ore Treatment Method
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 has been applied generally to the treatment of sulfide ores, both in small and large scale operations. Hydrometallurgical methods alone or in combination with flotation have mainly been applied to […]
Fine Coal Recovery
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 oven coke producers until 1924. The introduction of natural gas for firing reverberatory copper furnaces curtailed the market for Bee Hive oven coke and the mine production fell drastically. Some […]
Mine Backfill Plant
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 for at least one-half the cost of mining at Sunnyside. Roof bolts and round timber are used for roof support, plus yieldable steel arches for severe ground, air courses, mine […]
Designing Small CCD Cyanide Plant
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 throughout the world for small cyanide plants both for production and pilot operations, especially in areas not easily accessible, and where labor and local costs are on a level for […]
SAMPLING THICKENER PULP AT VARYING LEVELS
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 operation and its low cost will appeal to many other plants where thickener density must be sampled. The unit is operated manually and the depth from which the sample is […]
Rod Mill & Ball Mill Grinding Circuit
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 Mill size and specifications are determined by experienced engineers who study your grinding problem in detail and take into account the effect of grinding on your total milling circuit. Laboratory […]
Particle Size Range Amenable to Flotation
SILVER LEAD ZINC FLOTATION
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 to produce a mixed silver-lead concentrate for maximum smelter return and a separate zinc concentrate. Over-grinding of silver minerals is detrimental to efficient flotation recovery, so the Unit Cell is […]
Laboratory Gas Generators
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 hydrogen is shown in Fig. 106. The acid is held in the bottle, which is provided with a tubulature. The iron sulphide, etc., is in the calcium chloride jar, B. […]