soltysek0383
Member
Hi
Its my first post on this forum .
I have a question if someone tried to recover selectively solder from the PCB without chemical damages to the remaining metals.
Hypothetically, such a process can be carried out very simply boiling at 235 * C in a liquid such as glycerine or sulfolane .
Hypothetically, glycerin is best suited for this purpose because It do not react directly with the metal and it's boiling point is 290 * C .
After cooking remain pure PCBs and Electronic Components and in the vessel bottom clean solder. At a price of tin in my country about 14 $/kg and the content of tin in sludge about 97%. Taking the relative simplicity and low cost process seems more profitable than copper recovery at Price 4,5$/kg . Additionally, you can count about 1.5 % - 3 % silver content .
Jar of glycerin should suffice for centuries . Under one condition that before cooking remove all plastic and organic dirt .
After removing PCBs from the vessel must also be repeatedly rinse with distilled water . Water can be boiled off from the glycerine.
I do not want to reinvent the wheel if someone try this
Its my first post on this forum .
I have a question if someone tried to recover selectively solder from the PCB without chemical damages to the remaining metals.
Hypothetically, such a process can be carried out very simply boiling at 235 * C in a liquid such as glycerine or sulfolane .
Hypothetically, glycerin is best suited for this purpose because It do not react directly with the metal and it's boiling point is 290 * C .
After cooking remain pure PCBs and Electronic Components and in the vessel bottom clean solder. At a price of tin in my country about 14 $/kg and the content of tin in sludge about 97%. Taking the relative simplicity and low cost process seems more profitable than copper recovery at Price 4,5$/kg . Additionally, you can count about 1.5 % - 3 % silver content .
Jar of glycerin should suffice for centuries . Under one condition that before cooking remove all plastic and organic dirt .
After removing PCBs from the vessel must also be repeatedly rinse with distilled water . Water can be boiled off from the glycerine.
I do not want to reinvent the wheel if someone try this