Search results
Results from the WOW.Com Content Network
For froth flotation, an aqueous slurry of the ground ore is treated with the frothing agent. An example is sodium ethyl xanthate as a collector in the flotation of galena (lead sulfide) to separate it from sphalerite (zinc sulfide). The polar part of xanthate anion attaches to the ore particles and the non-polar hydrocarbon part forms a ...
Diagram of a froth flotation cell. Froth flotation was adapted from the flotation process used in the mining industry in the 1960s. It is the most common deinking process in Europe used to recover recycled paper. Often most of the collector is added to the inlet of the flotation. The process temperatures are normally in the range 45 - 55 °C.
Copper-sulfide-loaded air bubbles on a Jameson Cell at the flotation plant of the Prominent Hill mine in South Australia. The Jameson Cell is a high-intensity froth flotation cell that was invented by Laureate Professor Graeme Jameson of the University of Newcastle (Australia) and developed in conjunction with Mount Isa Mines Limited ("MIM", a subsidiary of MIM Holdings Limited and now part of ...
A variety of measures are taken to improve the efficiency of the froth flotation. Lime is used to raise the pH of the water bath, causing the collector to bond more efficiently to the copper sulfides. The process can produce concentrates with 27–29% and 37–40% copper contents from chalcopyrite and chalcocite, respectively.
Flotation process; Forward osmosis; Froth flotation; Hydrocyclone; Imhoff tank; Induced gas flotation; Integrated fixed-film activated sludge (IFAS) Ion exchange; Lamella clarifier (inclined plate clarifier) [1] Living Machine; Maceration (sewage) Media filter; Membrane bioreactor; Membrane distillation; Membrane fouling; Microbial fuel cell ...
Oilsand froth is difficult to pump at very low speeds and at low temperatures. However above a certain speed in a steel pipe, water may separate and form a lubrication layer. The process is called self-lubrication and depending on the temperature (25 C - 45 C), the friction losses are between 10 and 20 times the equivalent friction losses of water.
Roasting is a process of heating a sulfide ore to a high temperature in the presence of air. It is a step in the processing of certain ores . More specifically, roasting is often a metallurgical process involving gas–solid reactions at elevated temperatures with the goal of purifying the metal component(s).
Froth flotation – Process for selectively separating of hydrophobic materials from hydrophilic; Magnetic separation – Process of separating components of mixtures by using magnets; Vanning – Ore dressing in which ores are washed on a shovel; Extractive metallurgy – Ore extraction material science