break and melt easily
Low-grade copper ore contains a small amount of copper (1% or lower) and a big amount of waste rock. The problem with low-grade copper is that it breaks down and melts more easily than copper ore.
Using low-grade ore as a copper source can be problematic because it requires more energy and resources to extract the copper from the ore. This leads to increased environmental impact and higher costs of production compared to using higher-grade ore. Additionally, the extraction process may produce more waste and emissions, impacting local ecosystems and communities.
Copper rich ores contain Relatively large amount of copper. Copper obtained from rich ores is from better quality than low-grade ores. A low-grade ore doesn't contain very high proportion of valuable copper
Copper can be extracted from low-grade ore through a process called bioleaching, where microorganisms help break down the ore to release the copper. This method is more environmentally friendly and cost-effective compared to traditional methods like smelting. The extracted copper can then be further purified and processed into usable forms.
Free milling ore refers to gold or silver ore that can be easily extracted and processed using standard mining methods without the need for additional processing or chemicals to separate the precious metals from the host rock. This type of ore is usually high in grade and easier to extract, resulting in lower production costs for miners.
It is very hard and very expensive to remove the copper from that ore.
Low-grade copper ore contains a small amount of copper (1% or lower) and a big amount of waste rock. The problem with low-grade copper is that it breaks down and melts more easily than copper ore.
Using low-grade ore as a copper source can be problematic because it requires more energy and resources to extract the copper from the ore. This leads to increased environmental impact and higher costs of production compared to using higher-grade ore. Additionally, the extraction process may produce more waste and emissions, impacting local ecosystems and communities.
The metal (copper) extracted may be generally brittle and break easily.
cannot be done, requires an assay.
1kg of iron ore is about £40 or $20. It depends on the grade of the ore, high or low.
Low-grade ore refers to mineral deposits containing a lower amount of valuable materials compared to high-grade ore. This means that more material needs to be processed to extract the desired minerals, making it less economically viable to mine.
refining
It's an ore that doesn't contain a very high proportion of valuable minerals. The term could also be applied to richer ores containing large amounts of undesirable impurities, arsenic for example. Low-grade ores are less valuable than higher-grade ones. Also, recovery rates for low grade ores tend to be lower than for high grade ores - that is, a lower percentage of the total amount of metal in the ore is extracted successfully. The definition of low-grade depends on the resource in question. For copper, low grade ores have less than 1% copper. For gold, an ore having 1% gold by mass would be considered (very) high-grade, as gold is more valuable than copper.
Because there is insufficient return on the process
Copper rich ores contain Relatively large amount of copper. Copper obtained from rich ores is from better quality than low-grade ores. A low-grade ore doesn't contain very high proportion of valuable copper
Ore grade refers to the concentration of valuable minerals or metals in an ore. It is typically expressed as a percentage or in grams per ton. A higher ore grade indicates a higher concentration of valuable materials, which can impact the economics of mining and processing operations.