That is a masterpiece. Separating silver and palladium is a true pain in the arm. I tried it several times - not your process - and I never got the Pd really clean.
You could have just poured the silver solution into a container with some large pieces of copper pipe or copper plate in it. The silver would have cemented out on the copper leaving a blue copper solution behind. That copper then gets recovered by pouring it into a container containing iron pipes or plates for the copper to cement out on. Doing that takes more time, but it is a heck of a lot cheaper and the yield is the same
Your proposed method can not work properly. The ionization tendency is as follows. Cu(+0.34V) > Ag(+0.80V) > Pd(+0.92V) *Notes: H=0V It means Ag and Pd cements out simultaniously when you pour the Cu into the solution. May work properly if you drop the silver pieces into the solution instead of copper. (Needs experiment to confirm its)
Again one great video. One question, adind sodium carbonate until what ph? Or until clouding? Before adind Ascorbing Acid, thank you very much for all your knolege sharing with us..
I could not melt the palladium platinum powder. It did not come together in the crucible. It was in the form of small dotted particles and was swelling where it was. It remained white and chalky. I could not melt it. @@OwlTech333
Exhaust conveyor I had removed it from the catalyst, palladium and platinum became bubbles at oxygen temperature but they did not come together. It hardens and hardens.
Well, since you mention it, I haven't found any tin recovery from acid, piling up pcb's here and wondering if i can just have them in acid bath till tin is dilluted then wash it with water and leave it aside for other treatments. I haven't found anything to then extract the tin, since it adds a lot of the weight of any pcb it would be good to know.
You can put the pcb in hydrocloric acid, use a small platinum wire or some thing like that as a catalyst, heat on, and the tin will get dissolved. To get the tin out of the acid, use elektrolysis of the tincloride.
Hello Owltech, i just want to know is it possible recover palladium from 50% scrap silver after dissolving that scrap silver into nitric acid?? And why not you using dmg to seperate palladium from silver nitrate??
Just. a question. you told hydrocloric acid will dissolve palladium and the silver will not dissolve .up to here ok later palladium precipitated up to here ok later the precipitant washed with hydrocloric acid .in this time will palladıum dissolve
That is electrical contact alloy for electrical relays. A much easier way to do it is to put the solution in a rbf and distill off the excess nitric acid then when most of it is gone add distilled water enough to dissolve. Next heat and add salt water to it. The silver will precipitate as a white chloride and the palladium will stay as a mix of chlorides. The rest is simple reduction or eletrotwinning. Silver can be reduced to metal with hydrogen or methane. Also the silver purity from this method is extremely high 4N or better. The contact alloy is generally 90 to 95 percent silver balance is palladium and copper. 🤓
@@arte47 because when it try to percipitate the nitric and hydrochloric desolve it back to aqua regia If there is access of Hcl my be silver chloride percipitate
Hi , thank you for the video to increase the ph level with sodium carbonate (what ph level has to be achived) also after that you say (adding more ascorbic acid) in which process and aprx. How many grams need to be added and what after that the ph level has to be reached.thank you
Sorry, I want to ask, isn't the palladium precipitate that you precipitated dissolved in hydrochloric acid, but why did you wash it with hydrochloric acid? please explain sir
Itryed making silver nitrat and then add hidrocloric the silver peticipat as silver cloride wiht powder then turned it to silver oxide with lye then melted it how did you add hydrocloric to silver nitrat without turning it to silver cloryd wiht powder
Hi thank you for your video. Can i use sodium/potassium hydroxide if the solution contain copper ? And if i Use sodium formate to reduce silver nitrate but the solutions contain copper it's ok ?
Thank you so much! This sure looks like the safest route. I don’t like the idea of breathing chlorine gas. I just need to recover Palladium from Silver alloys.
Great vid as well as the whole series. Thanks OwlTech!!!! How did you come across silver and palladium alloy? Edit: Oh, I see. Is it typical for relays, or is it particular kind that contains silver and palladium?
Hola.. como estas? viendo el video tengo algunas consultas-1 cuanto carbonato de calcio agrega al cloruro de paladio para subir el PH y a que PH esta apuntando conseguir?-2- Para formar el formiato de sodio a partir de Carbonato de sodio y acido Formico.. cual es la relacion de cada uno? se mezclan en forma solida o hay que hacer una disolucion ? Saludos y myuchas gracias Marcelo
@@OwlTech333Hello Master Do you use the same formula for ascorbic acid and sodium carbonateAt 18:34 you said to increase the pH with sodium carbonate, but you did not say how much it should be؟
Hola.. tengo una consulta.. si tengo nitrico con cobre y plata en solución... si le agrego el formato de sodio.. precipitaria solo la plta o también el cobre precipitaria? .. quebtecnica me aconsejaría? Muchas gracias
Thank you. What if I would have lead-silver-palladium-platinum in one bar? I would like to recover silver and platinum together with palladium, don’t need to separate them. Please answer King :)
Pd Hcl precipitated with sodium hydroxide is dissolved immediately. Well, Why is Pd precipitate precipitated by ascorbic acid not dissolved with Hcl? üstelik birkaç dakika da kaynatılıyor.
Pd precipitate precipitated with sodium hydroxide from palladium nitrate solution is palladium hydroxide which is soluble in HCl, and Pd precipitate precipitated with ascorbic acid is palladium metal
Hola !! Por favor si puedes dar otro curso como extraer rudio de polvo ! Descubrie un Montana de toneladas de polvo que contiene rudio!! Pero no sabemos como extraerle del polvo ! Gracias
