In e waste recycling and gold recovery procedures, Gravity filtration is best. But on some points, you will need vacuum filtration. For vacuum filtration, you will need Buchner funnel. You should choose a big Buchner funnel. I use 250mm diameter Buchner funnel. But can use minimum 150 mm diameter Buchner funnel. Use only ceramic made Buchner funnel.
For vacuum filtration, you will also need a vacuum flask. You can choose any company for a vacuum flask. You just need to confirm that your Buchner funnel should be fit with a cork on vacuum flask.
A vacuum pump is necessary for a vacuum filtration process. This is an expensive item but I will tell you the cheapest way. When you will go to market for vacuum pump then you will see oil vacuum pumps. These pumps sucking capacity is very high but these vacuum pumps are not good for our gold recovery process because after some time this will be Jam. If you want to save your money then use this type of compressor. You can also use a second-hand compressor find this from any scrap yard. You can use this as a vacuum pump. It is reliable for filtration. If this leave to do work, you can easily repair it.
You will also need glass beakers for gold recovery. As a recycler, don’t buy small beaker. Your smallest beaker should be 2 liters. If you want to boil something in a beaker then use only original Pyrex beaker. And if you use only for holding solutions then you can use any cheaper company for this because Pyrex is an expensive company and you don’t need to waste your money for only solution holding on Pyrex.
A cheaper way for gold recovery is plastic pots and buckets. You should confirm that your plastic pot should not be made with PET. Because PET is not good for acids. PET dissolves in many acids.
To be continued…….
You can also learn about GOLD RECOVERY CHEMICALS