Tuesday, 28 February 2017

Gold content in BGA chips

How much gold from one kilo of BGA chips? Well the answer is quite a lot. You get 7 grams of gold per kilo. But, here you have to be very careful about one particular thing. And that is that you get this yield from Intel BGA chips. If it is quite an old batch from Korea or Taiwan, you can get up to 3 grams of gold per kilo. But BGA chips from Chinese motherboards have a very low yield. You won’t believe you don’t even get half gram of gold from the current Chinese BGA chips per kilo. We get BGA chips from rams also. From those chips, we get around 3 grams of gold per kilo. Some rams have normal chips. Their current yield is 1.1 grams of gold per kilo.
In my next post, I will explain the process of gold recovery from BGA chips.
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आपसे निवेदन है कि हमारी पोस्ट को लाइक करें , अपने कमेन्ट्स दें , शेयर करें | 








































Monday, 27 February 2017

How to set up an E-waste Recycling Plant/Facility

Start electronic scrap recycling and get rich soon. This is one of the world’s best businesses these days because it is a metal business. You get gold, silver, palladium, platinum, copper, lead, tin, aluminum and so many rare metals from this.
First and foremost thing before starting a business is to look for the sources of the raw material at a very good price. And the best thing about this business is that e-waste generation is increasing by the day.
Second important factor is to decide the size of the plant, according to your budget. Third is the area of the land. And the fourth and most important aspect is the selection of the machinery. The best electronic scrap recycling machines are either from Germany or Italy. China also makes electronic waste recycling plants, but they are not as durable as that of Germany and Italy. Some Turkish companies also sell these plants. They too are not as satisfactory as their manufacturers claim them to be. So, do a thorough research before buying the electronic waste recycling machines.
After this comes the skilled chemists and engineers. Most of the plants fail just because their consultants, chemists, engineers and the management team as a whole lack expertise in the field.
Another important aspect to be kept in mind is that don’t start the facility right away. I mean to say, gain some experience first. You may either do a job in a recycling facility to understand the nature of the business completely or start the business on a small scale first. The benefits of this strategy are that you get to understand all the ups and downs of the business. You can even first start as a dismantler. Even if you have some loss, it will be very little in comparison to the one you might have by starting the plant without experience.
The secret I am going to reveal to you now is that inexperienced people are not able to decide what material to process and what not? Whereas experienced people only recycle the stuff that gives more profit. I receive so many calls from people in the process of setting up the e-waste recycling facility almost every week telling me their consultant has advised them to recycle computer motherboards only. And I pray to God for their mental equilibrium in the time to come.
So, it is undoubtedly a good business, yet you need to take into consideration so many aspects before starting an e-waste facility. This topic is very big, so I will keep providing you with very useful information on it in parts.
Hope you like the tips that I have given. It is the result of my thirty years of experience in this field.
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Wish you all the success in your endeavors & thanks for your time!


आपसे निवेदन है कि हमारी पोस्ट को लाइक करें , अपने कमेन्ट्स दें , शेयर करें | 


Sunday, 19 February 2017

Silver Recovery Raw Materials

How to recover silver/silver recovery process/silver extraction/x-ray film silver recovery
All these keywords used on different search engines indicate people’s quest for learning silver recovery process and make money. I receive a lot of phone calls and emails in which people ask me about the silver recovery process either from X-ray films or from fixer solution. It portrays that majority of people who are interested in the silver recovery process are of the opinion that there are only two things from which you can recover the silver. But it is not so. There is a long list of items from which you can recover silver and make money. I would like to mention a few of them.

Apart from x-ray films and fixer solution, you can also recover silver from Ultrasound films, Compact Discs, diodes (electronic components), silver coated connectors mostly used in electronic industry, silver coated wires, Mirrors, Mobile Tower Boxes, Electrical Contacts, silver plated bathroom accessories, Crockery, Silver Oxide Battery, Solar Panels and old coins etc.
The best thing about them is that they are available in good quantity. And you can start this business with little investment and make a living out of it. And it is quite easy to recover silver from them.
Some people find it hard to trust. But they don’t know the fact that half of the silver consumed every year finds use in industrial applications. So, the recycling of silver from such items is undoubtedly a profitable business.
For further assistance on this matter, you can write to me.

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Wish you all the success in your endeavors & thanks for your time!

आपसे निवेदन है कि हमारी पोस्ट को लाइक करें , अपने कमेन्ट्स दें , शेयर करें | 

Thursday, 16 February 2017

How to Recover Gold from Computer Parts?

I have received a great number of mails today, in which people have expressed their desire to know about how to recover gold from computer parts. I thank all of them who wrote to me about it. And, I would like to tell them that I have explained this in my recent post on this blog under the title: “Recover Gold from Electronic Scrap”
So read the article of your choice and please follow my blog and oblige me with your comments if you like that article.
Wish you all the success in your endeavors & thanks for your time!

आपसे निवेदन है कि हमारी पोस्ट को लाइक करें , अपने कमेन्ट्स दें , शेयर करें | 

Tuesday, 14 February 2017

Recover Gold from Electronic Scrap

Gold Recovery from Electronic Scrap is a very lucrative business. But you must find out the right source to buy the material. Because there are two things when you start this business. Number one you should choose the right methods to recover all precious metals from electronic waste (E-Waste). Number two- you should be good at purchasing the material also. Being good at only one thing won’t help.
When we say electronic scrap, it is not one single big thing. It is a mixture of either, so many electronic circuit boards or a variety of whole devices. The best thing about it, according to my experience is that you should not process everything. You should be choosy if you want to make more money in a short time. When we talk about precious metal recovery from electronic scrap, it is not every component of the electronic scrap that yields precious metals. There are only particular components where precious metals are used. For example, chips, processors, golden fingers, gold plated connectors, some special diodes and transistors, monolithic ceramic capacitors  and relays etc..
If you happen to buy a mixed lot of electronic scrap, you should first segregate the items. Now one by one take away the above mentioned precious metal bearing components. There are customers for almost everything that you get from e-waste. So, you can sell the rest of the items (Non gold bearing ones) to the e-waste recyclers.
There are tests through which you can determine the presence of different precious metals. For example, if you think that a particular component is silver plated. You can first put a drop of nitric acid on it, and then a drop of hydrochloric acid. If there is silver, either in the form of alloy or polish; there will be curd- like formation on the surface of the metal. For gold, you can put a drop of nitric acid on a component or a piece of metal looking like gold. Gold does not react with nitric acid. It stays as it is. If it is copper or brass etc., nitric acid will react and dissolve the metal. The same way, there are methods for testing palladium and platinum also.
Gold polish can be removed from the components through an AP process. CPU’s/Processors are best treated for gold recovery with aqua regia. Gold can be removed from the pins through sulfuric cell also.
In my next article, we will discuss some precious metal recovery methods in detail.

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CPU-Processor Gold Recovery

CPU Gold Recovery can be done through many ways. Some people crush the whole CPU into powder and then separate the metals from the powder through density separation. But in my opinion, this is not the best way, because you have a precious metals loss in it. CPU's contain gold, palladium and silver, etc. people normally think that you get only gold from the processors. It is not true. If you look at them  closely, you will see MLCCs on them. MLCCs (Monolithic Ceramic Capacitors) contain palladium, silver and gold.
So, the best gold recovery method from CPU’s/Processors is to recover gold through aqua regia. You should first remove MLCCs from the processors and store these small capacitors safely for silver, gold and palladium recovery in future when they are in enough quantity. Now break the processors into smaller pieces by some hammer. Prepare the aqua regia solution. The aqua regia solution is one part nitric acid and three parts hydrochloric acid. You should use heat resistant glass pot for it. First put the broken processors into the pot and now pour some aqua regia into the pot. The reaction will start and the solution will start eating pins etc. including gold. Do it in an open space or a properly ventilated room and use safety gear.
Separate the solution from the solids after the reaction has stopped completely. Now you need to neutralize this gold bearing aqua regia solution. And, for this, you may use urea. Add some urea to the solution, and there will be a lot of fizzing. There will be lots of foam. After some time, the foams will disappear. Now, again add some more urea to the solution. The foams will form on the surface and subside quickly. Keep repeating it till foams start taking longer time to subside. Stop adding urea to the solution, when foams take too long to subside. Now your solution is neutralized. Filter this solution and recover your gold with sodium metabisulfite (SMB)

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Wednesday, 1 February 2017

How to Recover Silver from Silver Nitrate Solution?

When silver reacts with nitric acid (HNO3) silver nitrate is formed. It is very easy to recover silver metal from silver nitrate (AgNo3). First filter the silver nitrate solution, so that all the unwanted material is removed from it and we get a better quality of silver. Take a plastic pot and pour all the silver nitrate into it. Now start adding HCL (Hydrochloric Acid) to it in small increments. The moment you add HCL to silver nitrate solution, silver starts separating from it in the form of silver chloride. Keep adding HCL to the solution till there is no more silver separating from silver nitrate solution.

Silver chloride (AgCl) is a curd like silver compound in appearance. It precipitates immediately. Give it around half an hour to settle to the bottom completely. Heavier particles settle immediately and lighter ones take some time to go to the bottom. After that, separate the liquid from the silver chloride by tilting the pot. Wash the silver chloride with plain water at least twice. Now dissolve some glucose into the plain water and keep it in a plastic can. Add some quantity of this glucose water to silver chloride. And stir around the silver chloride with some glass rod. Silver chloride will start converting to metallic silver. Keep doing it slowly till all the silver chloride has changed into silver. Now put this silver onto a filter paper or filter cloth so that all the water should filter out of it. You can leave it for a night. By the morning, there will be no or little moisture left in the silver. You can dry it on a lighter flame in a glass pot and melt it.

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