How to make gold?

It can be divided into pyrometallurgy, wet extraction or electrochemical deposition.

1, pyrometallurgy

Also known as dry metallurgy, ore and necessary additives are heated to a high temperature in a furnace and melted into liquid to produce the required chemical reaction, so that crude metals are separated and then refined.

2. Hydrometallurgy

Hydrometallurgy is a metallurgical process, which uses the aqueous solution of acid, alkali and salt to extract the required metal components from ore by chemical methods, and then uses various methods such as aqueous solution electrolysis to prepare metals.

3. Chemical reaction

Metallurgical process of extracting and separating metals from raw materials by chemical reactions (including oxidation, reduction, neutralization, hydrolysis and complexation) with a certain solvent.

Extended data When the ore contains natural gold, the gold will be hidden in the rock in the form of granular or microscopic particles, usually occurring at the same time as sulfide veins such as timely or pyrite. The above situation is called vein deposit (vein) or vein gold deposit.

Natural gold will also appear in the form of leaves, particles or large gold nuggets, which will be eroded from rocks and finally form gravel of alluvial deposits, called placer gold or alluvial gold.

Placer gold will definitely contain more gold than the surface of vein deposits, because the adjacent minerals of gold in rocks are oxidized, weathered and washed and flow into rivers and streams, where they are collected and combined by water to form gold nuggets.

Gold sometimes occurs in the form of compounds with other elements, especially tellurium.

Such as travertine, kyanite, nagyagite, petzite and krennerite. Gold rarely appears in amalgam with mercury, and it also appears in seawater at a low concentration.

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