Home > Environment > A Brief History Of Copper

A Brief History Of Copper

wallpapers Environment 2021-01-14
Copper is a metal chemical element and a trace element necessary for the human body. Copper is also the earliest metal discovered by humans. It is a metal widely used by humans and is a heavy metal.
Copper is the earliest metal used by mankind. As early as prehistoric times, people began to excavate open-pit copper mines and use the obtained copper to make weapons, tools and other utensils. The use of copper had a profound impact on the progress of early human civilization. Copper is a metal found in the earth's crust and oceans. The content of copper in the earth's crust is about 0.01%, and in individual copper deposits, the content of copper can reach 3% to 5%.
Most of the copper in nature exists as compounds, namely copper minerals. Copper minerals are aggregated with other minerals to form copper ore, and the mined copper ore becomes a copper concentrate with higher copper-bearing grade after ore beneficiation. It is the only metal that can be produced naturally in large quantities. It also exists in various ores (such as chalcopyrite, chalcocite, bornite, cuprite, and malachite). It can be in the state of simple metal and brass and bronze And other alloy forms are used in industry, engineering technology and technology.

Brief History
The copper beads unearthed in northern Iraq are more than 10,000 years old and are presumably made of natural copper. Such metal blocks are sometimes found. Copper was widely used in ancient times as an alloy of bronze, copper and tin, which was used to make knives, coins and tools. It is used as a row clock in China.
Copper is not difficult to extract from its ore, but mineable mineral deposits are relatively scarce. Some, such as the copper mine in Falun, Sweden, have been sources of great wealth since the 13th century. One way to extract this metal is to bake the sulfide ore and then separate the copper sulfate it forms with water. After flowing over the surface of the iron filings, copper will precipitate, and the thin layer formed is easy to separate.

Say something
  • All comments(0)
    No comment yet. Please say something!