Who knows that the more information about the gold content of e scrap, the better!! 20

1.The circuit board of a used mobile phone has the highest gold content, with metals such as copper, cobalt, silver and gold accounting for 23% of the weight of a mobile phone, according to the United Nations.

2.For example, about 130 kilograms of copper, 2 kilograms of silver, kilograms** and 80 grams of palladium can be separated from 1 ton of used mobile phone circuit boards.

The gold content, which was originally the content of the metal "gold" of gold jewelry and ** products, is expressed in k, and each k (abbreviation of English carat and German karat, often written"k"The gold content is. Nowadays, it is often extended to describe the intrinsic quality of something.

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The difference between gold and gold in electronic scrap is as follows: The gold material is gold-plated. When it comes to gold plating materials, it mainly refers to plating a layer on the surface of other metals, so as to make its surface neat and beautiful, generally used in the daily jewelry industry, gold plating can increase the color and brightness of the object, as well as various parts in the electronics factory, various parts on the circuit board, etc. Metal-bearing is a substance with metallic properties formed by mixing two or more chemical substances (at least one group is divided into metals), which is generally obtained by melting each component into a homogeneous liquid, and then condensing.

There must be ** in it. In the first these gold-plated scraps, must be distinguished from brass products, and there are several ways to distinguish between these two types of metals, only by mastering these common-sense methods, can we accurately distinguish between gold-plated and brass, so as not to encounter these metal materials, can not be accurately identified.

In fact, electronic waste contains a lot of non-ferrous metals, ferrous metals, glass and other substances that can be reused. Strictly speaking. This e-waste should not be called e-waste, but should be called used e-goods.

The results of research and analysis show that 286lb of copper, 11b**, and 441b tin can be separated from the random collection of electronic boards for 1t, of which the value of llb** alone is 6,000 US dollars (1lb=. It can be said that there are major business opportunities in the "e-waste waste", and if the gold, silver, copper, tin, chromium, platinum, palladium and other precious metals contained in the "e-waste waste" are "removed", it will be an immeasurable wealth.

The specific ** can be learned from the China Electronic Waste Network.

The effect is not bad, I heard my friend say, he is doing scrap **, he often looks for customers on it, it seems that he is still a senior member there!