kurtak
Well-known member
Very nice pics Steve - & yes I have had all the colors you show including the green
Kurt
Kurt
I found the comment of Gold as contaminant quite funny thoughHere are some of the many colors of PdDMG you can encounter as well as a few shots of Pd Sponge, 99.9 fine Pd flake, and calcined Pd.
99.9% Fine Pd Flakes/Powder
Calcined and Sponge Pd high purity
Calcined Pd
Red PdDMG from high nickle solution
Various colors of PDDMG
Green PdDMG (Au contamination)
Washing Green Out of PdDMG with water
PdDMG Washing/Rinsing with HCl
PdDMG after HCl wash
Clean PdDMG precipitate
Steve
Pd dissolved in nitric acid can be precipitated using basic DMG solution prepared by 4Metals description already referenced. The pH of the nitrate solution must remain acidic throughout the process. The collected yellow Pd-DMG compound is collected, washed with water several times and finally calcined.
I'll leave this one to you SteveStreetTips says you cannot process Pd outside or in your garage without it getting on you and into you, period ! The images appear to be outside and lots of processing of highly toxic material. Do you wear a full chem suit with re-breather or scuba tank while processing this much Pd ?
Your English is not a problem.hello fabriciomnarvaez
I am new member here, and Very low knowledge about refinering.
I just want to share my experience with you.
I'm process Pyrite Ore in Jambi Indonesia, that contains lot of elements, like : palladium, nickel, iron, aluminium, sulfur, and silica.
in the beggining of production, I was frustated, I used lot of base, acid, electrochemichal, etc methode to get palladium from it.
I tested lot of technique. I used formic acid, Copper, DMG, KI, etc to cemment palladium. and none of it works.
I faced more than 5 times, like your conditions.
then with highly patient over than 2 month try and errors. I realize lot of things. And learn.
For your conditions, From my experience, I think Lot of metals are dissolve by your reactions, especially iron. And Dmg participate it too. Some times "Kalium" Makes all dissolving not worked.
I Think you can do some methode for your condition now and next.
For now,
Methode 1 is,
For your DMG, furnance it to become metals. Use NaOH + Borax.
For your solutions, participate all of metals by zink, then furnance it too with NaOH + Soda Ash + Borax
Combine the metals then Dissolve all base metals with H2SO4, filtrate and wash it with Hot water. Then you can dissolve Fe with HF until all FE dissolve. filtrate it and wash. Then use HNO3 to dissolve Pd then you can use dmg, or formic acid, or KI to cement it.
For next time
Methode 2.
Try to clear all base metals, Carbon, and all Alkaline from your material. I suggested that you would use H2SO5 or Piranha Solutions. This will safe you from lot of dissolving works. use 3:1 H2SO4 + H2o2.
Be carefully, H2SO5 is very corrosive to skin and organic material.
After that, you can filtrate material and use nitric acid to dissolve Palladium, and use DMG for highly selective reagent.
If you don't want to use H2SO5, You can melt all material by Furnance it become metals. and selectively dissolve it with H2SO4, then HF, then HNO3. and purify it with DMG.
That's all.
Thank you
#Sorry for my bad english
Aqui estão algumas das muitas cores de PdDMG que você pode encontrar, bem como algumas fotos de Pd Sponge, flocos finos de Pd 99,9 e Pd calcinado.
99,9% Flocos/Pó de Pd Fino
Pd calcinado e esponja de alta pureza
Pd calcinado
Vermelho PdDMG da solução de alto níquel
Várias cores de PDDMG
Verde PdDMG (contaminação por Au)
Lavagem Verde de PdDMG com água
PdDMG Lavagem/Enxágue com HCl
PdDMG após lavagem com HCl
Precipitado de PdDMG limpo
Do you want to turn it into the yellow salt?Good morning guys ...
For those who ask, here's the question:
What better method to have the pd yellow salt ??
Chlorine gas or what else?
Hello budy, how are you ? Whenever I used DMG, there was nitric in the solution too and yes it dilutes the solution (if you don't do this the acid redilutes the pDMG). I've never done it with hydrochloric alone. But you can try to hurry up.Hi .dmg in concentrated hydrochloric acid
Does it precipitate the palladium or should the hydrochloric acid be diluted??
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