I've been thoroughly enjoying the stockpot and filter videos. I have 2 buckets sitting and settling now and recently did a bucket of filters. I was SHOCKED at how much Pd and Pt there was. Very little gold and no silver so I guess my recovery is good for those but I would never have guessed I had that much Pd/Pt left in the filters and residues. Now with these stockpot refining videos you've got me VERY curious to see just how much I have sitting in the bottom of those buckets. Watching this I am again encouraged to begin the process on mine. I'm not sure if that makes you a good or bad influence on me. :)
Mr. Sreetips, in the past, IIRC, you've added a bit of sulphuric acid to the aqua regia to handle any lead that maybe in there. Is that not a concern anymore, and if not, why? Love your work sir, keep the hits coming!
H2SO4 is a problem when "drying" your solids, it evaporates at 310-330 °C where it also becomes a strong oxidizing agent. Wash it out or destroy it before trying to dry your stuff is much better I think.
I'm curious whether passing a magnet through that dust after the grinding would have produced anything. I don't know, it's just curiosity. Thanks again, Sr. I'm sure we'll all get through this one and I really want to thank you for taking us on the journey with you. That's pretty dang cool.
Man, when you reached in to pull the flask off the heat during the runaway reaction, I was on edge half expecting you to get boiling acids all over your hands. Glad it turned out ok, but please be careful adding those larger quantities. Maybe you could try a drip system?
Alright sreetips, this is looking much smoother than the first stock pot series, I am glad to see the palladium already separated. Thanks for making the videos!
Wallmart always has sales, if you really want a good one to use ask a pot head! Id suggest old coffeemate grinders, ive had to change the cord on my old grinder 3 times so far! And i got it from a old friend!
Don't know if you will see this, but a ball mill would be a good investment for processing your incinerated materials. It is literally set it and forget it. I have also seen them used to process computer scrap for gold, so it could serve other purposes also.
Will there be a part 3 ? Be nice to see the yield in grams . I continue to learn from you , have done my first refining and It was both a learning and rewarding experience . That blue shirt should be on display in the Smithsonian .
Long time viewer, maybe you remember me. As soon as this video ended, I started looking up ways to extract the platinum from the chloroauric acid solution in the back. Came across a paper stating you can use chloroform in an acidic solution to seperate Au and Pt. Method behind it is that the Pt complex created in an acidic solution is soluable in cloroform, but the Au complex stays soluable in water and does not go into the chloroform. Since there is a phase seperation between water and chloroform, all youd have to do after mixing and shaking, is seperate the 2 different phases and process seperately. I cant wait to get back stateside from being stationed overseas. At least I would be able to do a proof of concept to provide better info than what I have above.
@@sreetips NurdRage has a video on how to produce Chloroform using MEK (an industrial solvent) and household bleach: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MvkuqLxQd2c.html
@@sreetips You can make it really cheap. 2 things you can find in the bathroom, plus tap water ice. I dont know what glassware you have, but if you do make one batch, you can distill off the cloroform from the solution, leaving the Pt complex to crystalize, and re-use the cloroform you made for a later extraction. After the initial manufacture, you'd have almost no waste as long as you capture the cloroform versus venting to atmosphere.
I do remember you. You sent a document with the process. I never could figure it out. Chloroform recovery sounds new and interesting. But I think it’s flammable. My fume hood is not rated for flammable work
@@sreetips It isnt flamable, but if exposed to open flame it will break down to produce HCl, CO and other trace compounds. If you have a condenser setup, all you'd have to do is set up for simple distillation on low heat in a closed circuit. Cook the distallation flask to dryness leaving the Pt salts behind, and in the receiving flask you'd have clean, ready to use solvent. When I do get back stateside, I'll do a dry run as a proof of concept and provide feedback. I may end up doing a youtube video for it :-P
Question. How much have been able to retrieve from all your efforts over the years. Don’t have to quote an exact number but have you broke even money wise? Come out ahead maybe? You really seem to enjoy it and I’ve enjoyed following your adventures. Have been wondering though, the supplies alone must be something. Please keep making videos so long as you enjoy doing it. I’ll keep watching. Thanks.
One thing that I always wonder is when you add liquids what is your thought process. I.E. when you first added distilled water and nitric, why these specific amounts? Ballpark figure, some ratio, enough to cover the material?
I think I got this. My last stock pot refining, even though it was a disaster, gave me valuable experience and lessons that I can apply to this refining.
So far this is going very well!! Also I don't see this one being a 16 part series!! Just don't hit anything with your camera! I know that's got to be going thru your head a little! Maybe not!! This is getting real good Sreetips!! Have a GREAT Day My Friend!!!
When you incinerated, the material seemed to melt. That was the salts / chlorides. They cooled, what did they do? They turned Hard as rock (slag) that you had to crush. They are insoluble salts. No matter how fine you crush them. Most will not dissolve in acid or water and they trap the precious metals. Think silver chloride. Same principal, Only Sodium Hydroxide will break them down. In short, it's a loss. Depending on the stock pot, it can be a big loss.
You and me both won't know what to do when you get a new vent hood and you can't hear the motor anymore. That motor is louder than I remember it lol. Just curious, you said that you were considering doing a go fund me page for a new vent hood system, are you still going to or have you started it. I'm excited to see you get one, you have taught us all so much already.. lol my outside porch looks like a chemists lab now. :) All the different solutions sitting there. :)
Have you considered dissolving your DMG in ethyl alcohol. It's much more soluble. Also I would think at the temperatures you heat at, any 95% ethyl alcohol would boil off easily or wash out in a water rinse
@@sreetips I only bring it up due to an undergrad project (43 years ago) in analytical chemistry. I was working with DMG and diethyl-dithio-carbamate as indicators for nickel. If I used water (hot or cold) as a solvent, any amount of undissolved reagent would make the spectrophotometer go nuts reflecting off the particles. When I dissolved either reagent in warm 95% ethanol (used the denatured version) I got a stable clear indicator solution that worked great. Sometimes I just like to dust off that chemistry degree and see if it can help :) All your videos are great, and I appreciate that you run a safe lab. Best of luck!
Hello, if a solution of aquaregia had Pd / Pt dissolved in it, will aluminum / zinc / copper powder cement all of the PGMs out? if yes then could one just straight away melt these precipitates into solid metal beads? if unrefined metals are the aim here… thanks
Could you access and melt the palladium using the DMG the same way You do Gold with SMB ? Will the DMG keep the palladium out of solution. Thank you for answering my many questions .,
I noticed in another video that when you were processing 24 carat gold to 14 carat gold that you used gold, silver, copper and zinc. I did not see you added palladium or platinum. Did I miss something?
Burning is purification. It cuts through, clarifies and cleanses the material before we commit it to the acids. Plus, my mentor, Harold_V told me, “the three most important things in refining are; incineration, incineration and incineration.” If you look at my first stock pot series you’ll notice that I did not begin that series with incineration. I believe that lead to many problems.
@@sreetipsThanks for the explanation. But I still somehow don't get it. What physical or chemical transformations are involved during incineration in this stockpot case? Were there any combustible materials, especially organics, to oxidize? If so, how did they get there?
One important element is tin. Used in soft solder found in some gold filled material. Tin dissolves in nitric forming metastannic acid, a thick paste that clogs filters. Incineration converts this to a compound that won’t dissolve and can be easily filtered out. Thats the big one. Not sure of anything else. When a professional refiner tells me to always incinerate before adding acids, I don’t question their wisdom. I just do it. Hope that helps you.
I have a desk top kiln and once in a while I melt down sterling and coin silver I use borax when melting.. my big question is __ is there a way for me with out using chemicals to purify my silver when I use the kiln ? I know the Borax removes some but it obviously does not remove everything..
ru-vid.com This link is for mount baker mining and metals, they use kiln method to recover all metals without chemicals, they are on youtube and they also use a table top kiln. Hope this helps you out. :)
Sterling and coin silver is about 90% silver alloyed with about 10% copper. There is no way to remove that much copper by simply melting and fluxing. Cupel might get rid of some of it like mbmmllc does on his channel. But the silver would still need to run through the silver cell to get three nines fine. It’s the only way to be sure.
Why not use NaCl + Pb(NO3)2 ---> PbCl2 + Na(NO3)2 then filter out the PbCl2 and then then just smelt the PbCl2 and burn off the Cl2 in a well ventilated area?
@@sreetips Sorry I've just noticed my error. I mean Pd not Pb! So NaCl + Pd(NaO3)2 ---> PdCl2 + Na(NO3)2 then filter out PbCl2 and smelt the PbCl2 in a well ventilated area
