Gold's chemical and geochemical properties

1. Gold Chemical Properties Gold is chemically stable and has strong corrosion resistance. It is generally not oxidized from normal temperature to high temperature. Gold is insoluble in common acids and bases, but soluble in certain mixed acids, such as aqua regia. Gold may also be dissolved in an -----

Use of potash mine

95% of the world's potash products are used as fertilizers and 5% are used in industry. In the chemical industry, about 30 kinds of products consisting of potassium, mainly potassium chloride, potassium hydroxide, potassium sulfate, potassium carbonate, potassium cyanide, potassium permanganate,-----

Basic characteristics of various chemical bonds

    The basic characteristics of various chemical bonds are briefly described as follows: 1. Ion-bonding Ionic bonds are formed by electron transfer (the electrons are cations and the electrons are anions). That is, the chemical bond formed between the positive ion and the negative ion due-----

Purpose and method of mixing

The purpose of mixing is three: first, the various materials prepared by the ingredients and the later returned ore are mixed to obtain a sintered ore having uniform quality; secondly, the moisture necessary for adding the sintering material during the mixing process is made. The sinter is wetted by-----

Hammer crusher construction

The structure of the hammer crusher is relatively simple. Figure 1 shows the Φ1600×1600 single-rotor irreversible hammer crusher , which is widely used in China. It is mainly composed of frame, transmission, rotor and grid. (1) Rack. The frame of the hammer crusher is welded by steel plat-----