GOLD is an essential element in the process produce contemporary electronic devices. When I say modern electronic equipment also think of those devices manufactured eighties and thereafter. What's more, the greater quantity of gold content can be found in older devices, but on the newer ones, which is due to the production technology, or its progress and more accurately.
Accuracy in making electronics has led to the fact that gold can be used in the best possible (cost-effective) ratio and with less scrap. This is the main reason why the older devices can find large
amount of gold or other precious and valuable metals.
The main difference in the amount of gold per unit weight or piece, even if this volume can be seen in the production of processor chips. In fact, old processors that are used in personal computers in the late eighties and early nineties in itself contain a significantly greater amount of gold from these newer generations of processors. So we have one
processor 486 marks in itself can hide from 1 to as much as
0.5 grams of gold per unit, and its multi-core processors are barely worth recycling.
The same is true for almost every electronic device.
Recycling gold from electronic waste to be not even reached its peak. Only now, as we write this process is taking root, and points to the fact that in as much as people concentrate instead recycling excavation of gold from the mine.
The very process of recycling is good for the preservation of our planet, the environment is a lot cheaper. Economic calculation is to be the main item that goes in favor of
recycling.
To produce and sell any electronic device, it should replace some old but used. In this round, the prominent recycling old electronic devices. Take into account that production and new and old equipment was necessary to use gold, silver, plastic, copper, etc.. So we have a very simple example of the need for recycling electronic waste decrepit.
The recycling of old electronic waste is not easy, but if it is understood as a lucrative business is not very much or risky and least well enough affordable. The main raw materials are waste materials. So as raw material purchasing devices and components that people are no longer needed. In most cases, obsolete and corrupt things people throw away, and if they enable more appropriate site for the disposal of such wastes have potentially secured network procurement of raw materials.
The collected material should be examined, and that the separation is done. Plastic parts are logically be separated from the metal, various pieces of metal, glass, and printed circuit boards. If you go to a complete recycling and collect all the material then the separation takes place in detail. Each material should be de regroup in their characteristics and composition. Gold has only one item, however the most valuable in the recycling process, but the real work needs to turn the collection of copper, aluminum, palladium, platinum and the like.
Since we are talking about
recycling gold in this step, we will cite as an example of just that element. When all the materials are grouped we can start by recycling parts of gold, or gold-plated because the electronic waste is difficult to find pure gold.
Gold is always applied as a left on base metal, only in rare cases and as pure gold, in some special chips or processors. When you collect all the pieces with gold plated it is necessary to process separating fine
gold from them.
In this step, you have to be careful. It is necessary to use an acid, and therefore adhere to some basic rules. The space in which you work with should be properly ventilated, and airy. He uses a suit which protects against possible contact with the acid, goggles and rubber gloves. The entire process of extracting gold should be done with tools specially prepared for use in laboratories. Container in which the gold is melted and set aside should be made of glass, of a kind, and used to work with chemicals, and all other actions to adjust the rules of the profession.
Parts that contain gold should be worked out in a mixture of two acids called aqua regia. It received its name because it just melts the gold, and one of the few that I can mix. Gold is a precious metal and that means it is very resistant to corrosion and insults from the environment and thus has a strong resistance to the acids. However, its chemical action aqua regia dissolves gold awesome.
Molten gold, and base metal is melted and the gold atoms remain 'trapped' in the fluid. In this step, it is important to return the gold to the solid state, and it is necessary to connect the gold atoms to obtain a quantitative value of this element.
To make the gold back from the current media situation in which we need and use sodium metabisulfite. It is a white powdery substance that interacts with aqua regia and the gold atoms have led out of the liquid. The reaction of gold that formed the real dregs at the bottom of the jars, which still does not look like gold. However, when the sludge treatment and eventually dissolved as the product we have a 24 carat gold in one piece.
