Process information for rare metals
The content of rare metals in the earth's crust is not very small. For example, the content of titanium, zirconium and vanadium in the earth's crust is greater than that of common non-ferrous metals nickel, copper, zinc, cobalt, lead and tin. Rare metals are often associated with other metals due to their occurrence and dispersion, and some special physical and chemical properties are often required to adopt special production processes.
2023/10/12
The natural reserves in the earth's crust are 6000 tons, and the recoverable reserves exceed 2000 tons. In 2004, the world's production of indium was 405 tons. China, Japan, Canada, Belgium and Russia are the major producers of indium. 80% of global supply. Mainly used for flat panel display, alloy, semiconductor data transmission, aerospace products manufacturing. It is mainly associated with lead-zinc ore, and the output of primary indium in China was only 410 tons in 2005. Indium is an associated metal, but the content of zinc concentrate is calculated by PPM (parts per million), which is very small and cannot be regenerated.
2023/10/12
Classification of rare metals according to the physical and chemical properties of various elements, occurrence state, production process and other characteristics, generally technically divided into the following five categories: rare light metals including lithium, rubidium, cesium, beryllium. Small proportion, strong chemical activity.
2023/10/12
Scarce precious metals, also known as rare metals, are also rare element metals. Commonly used rare metals are lithium, titanium, radium and so on. Rare elements are the general name of elements that are stored and distributed sparsely in nature (generally below 100ppm crustal abundance) and less applied by human beings. Rare elements are often used to make special metal materials, such as special steel, alloys, etc., which are key materials in aircraft, rockets, atomic energy and other industrial fields.
2023/10/12
Because of its unique geographical location, there are a large number of tungsten mines and huge tungsten reserves in China, and the major overseas powers also have a great demand for this strategic resource, but because of their lack of resources, they have to import to China to maintain the operation of their domestic industry.
2023/10/12