Copper Flotation - Elmhurst College
The copper minerals and waste rock are separated at the mill using froth flotation. The copper ore slurry from the grinding mills is mixed with milk of lime (simply water and ground-up limestone) to give a basic pH, pine oil (yes, it comes from trees -- a by-product of stone mills) to make bubbles, an alcohol to strengthen the bubbles,...
Copper Mining and Processing: Processing of Copper Ores ...
After the copper ore is crushed, liquid is added to make it a slurry. The slurry is a mix of valuable copper ore minerals and “worthless” rock, called gangue (pronounced “gang”). The slurry is placed in a tank and a process called froth floatation is used to separate the copper minerals from the gangue.
Flotation Froth - an overview | ScienceDirect Topics
Froth flotation is used to raise the low mineral concentrations in ores to concentrations that can be more economically processed. A concentration of 25–30% is suitable for economical smelting of copper.
RECOVERY OF COPPER FROM OXIDE COPPER ORE BY …
flotation tests were unsuccessful in terms of both recovery and grade of concentrate product. The highest copper recovery of concentrate was found as 61.35% with 8.69% copper content. The concentrate with highest copper grade of 34.65% was obtained with only 26.98% copper recovery. Unsuccessful flotation of the test
Copper Mining and Extraction Sulfide Ores
Stage 2: Froth flotation The powdered ore is mixed with a special paraffin oil which makes the copper mineral particles water repellent. It is then fed into a bath of water containing a foaming agent which produces a kind of bubble bath.
1 Froth Flotation – Fundamental Principles
Problem: A copper ore initially contains 2.09% Cu. After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate: (a) Ratio of concentration (b) % Metal Recovery (c) % Metal Loss (d) % Weight Recovery, or % Yield (e) Enrichment Ratio
Flotation of a copper sulphide ore from Okiep using thiol ...
froth flotation performance obtained with a bornite-rich copper sulphide ore from Okiep Copper Mine with a feed grade of 1.8% copper. Batch flotation tests were used to assess the performance in terms of mass-water recovery, sulphur grade-recovery and copper grade-recovery relationships and the Klimpel rate constant for copper recovery.
Froth Flotation Principles
Froth Flotation Process for Copper Froth Flotation Cells are a big factor in the production of copper concentrates in various sections of the world. They are extensively used for producing a high-grade copper-sulphide concentrate low in iron.
60 Centuries of Copper: The Flotation Process
In the case of copper minerals, the particles adhere to this froth, which is separated, whereas the great bulk of the useless material sinks to the bottom of the tanks. By varying the stone conditions within the cells different results can be obtained, thereby making flotation highly selective in skilled hands.
Froth Flotation Method - JXSC Machine
Dec 20, 2018 · When flotation of such ores, gold and silver enter into the copper concentrate or lead concentrate closely associated with them. The products are called copper, gold and silver concentrate or lead, gold and silver concentrate, etc.
Froth Flotation of Copper Ore - Home | Facebook
Froth Flotation of Copper Ore. 143 likes. Froth Flotation
Lime use and functionality in sulphide mineral flotation ...
The presence of gold in porphyry copper ores may require specific flotation strategies to ensure optimum recovery of both Au and Cu, which may differ according to gold mineralogy. Native gold generally floats well with the collectors used for the Cu sulphides (e.g., xanthates, dithiophosphates).
Introduction to Mineral Processing - Chevron Phillips Chemical
The froth, enriched in copper and molybdenum, is removed from the flotation roughers and scavengers. This enriched material is now called the rougher concentrate or cleaner feed . The combined rougher-scavenger concentrate may be 5% Cu and 0.06% Mo (a concentration factor of 3 to 10 times is typical).
Copper extraction - Wikipedia
Copper oxide ores have occasionally been treated via froth flotation via sulfidation of the oxide minerals with certain chemicals which react with the oxide mineral particles to produce a thin rime of sulfide (usually chalcocite), which can then be activated by the froth flotation plant.
Chemistry Books | Extraction of Copper From Copper Pyrites ...
Jun 15, 2018 · Extraction of copper from copper pyrites involves the following steps. This tutorial is created based on plus two Chemistry Books. Crushing and concentration The ore is crushed and then ...