Video showing a failed attempt to refine gold. This is why SMB is not a good reducing agent when PGMs are present. In this case the culprit was Palladium.
Пікірлер: 190
@2001pulsar5 жыл бұрын
I like the palladium crystals in the gold. Looks almost like alien gold.
@kenmason-hq8jo4 ай бұрын
It's nice to see a process without diluting the gold scrap with silver to 6 Kt. I was wondering why on one used aqua regia directly on the scrap gold, now you showed us, thank you.
@PaulBrown-uj5le2 ай бұрын
Because it wasn't high karat duh!.
@RafalScrapper5 жыл бұрын
quite big amount of nitric buddy at the start but yeah everyone has his own ways yeah buddy we all learn everyday from our mistakes nice share
@OwlTech3335 жыл бұрын
Thanks mate, I'm pre-mixing on purpose.
@RafalScrapper5 жыл бұрын
@@OwlTech333 guess that buddy you are working with unknown matteriall and high concentration so totallu understandable have a good one and see you around 👍👍👍😀👍👍👍
@4wchitstands10 ай бұрын
Too much nitric. Hot hydr acid bath then add small amounts of nitric
@SURFEAMORETERNO4 жыл бұрын
I know the video has an instructive character. But if you refine a piece of gold under your own conditions, the most conventional would be to use the electrometallurgical process. It is convenient to first melt with saltpeter, borax and sodium carbonate to remove base metals. The electrolysis is done in an electrolytic vat, with the gold to be refined at the anode, separated by a pure gold cathode felt. Gold chloride diluted in hydrochloric acid is used as an electrolyte. Temperature 65/80 ° C. Voltage 1.5 V and low Current, varying with cathode surface size. A battery can be used. During the process the electrolyte becomes weak in gold chloride, and this must be added. The rate at which the anode will be dissolved will be in accordance with the amount of free HCL. The associated metals deposit in the form of chloride below the anode. ..The gold obtained by this process is 99.98% pure. A hug.
@SURFEAMORETERNO3 жыл бұрын
@Bruce Wigle Thanks man. I don't have an Instagram or Facebook account. But I will share your alert via WhatsApp.
@mahdishariaty9881 Жыл бұрын
Hi antonio i'm a researcher from iran and i would like to know is there anychance you give me a way to contact with you and ask my questions about this topic? Thanks a lot.
@SURFEAMORETERNO Жыл бұрын
Hi mahdy. We are already in contact. If there's anything within my reach, I'll be ready to try to help you around here. Or leave your contact details.
@kasunwijendra3732 Жыл бұрын
Hey man do u think this method is good for refining big amounts like over 1 kg?
@SURFEAMORETERNO Жыл бұрын
@@kasunwijendra3732 Yes, but it will be quite time consuming if you don't have a large sheet of pure gold to use as a cathode.
@chafikmondial2 жыл бұрын
Is there another way To neutralize nitric
@OwlTech3332 жыл бұрын
formic acid
@chafikmondial2 жыл бұрын
@@OwlTech333 Do I add formic acid to aqua rigia In a drop ?
@leedudley35994 жыл бұрын
You do a great job on your videos. Very helpful. A couple questions about a palladium video you did. Did you add sodium carbonate and then formic to drop the Pd directly to Pd black? When to stop adding sodium carbonate? Would sodium bicarbonate work the same? Keep the vids coming!
@OwlTech3334 жыл бұрын
Lee Dudley the idea is to rise the pH above 6 which aids the reduction with formic acid
@leedudley35994 жыл бұрын
@@OwlTech333 Thank you for the response. I thought that was what you were doing but wanted to be sure.
@sonuverma2796 Жыл бұрын
@@OwlTech333 sir which chemical powder did you mix after disolved gold in liquids form
@georgemocanu85743 жыл бұрын
A short wash of the precipitated powder (with hot conc. HNO3) would have dissolved the Pd (and also Ag, if present).
@OwlTech3333 жыл бұрын
Agree
@georgemocanu85743 жыл бұрын
I used dimethylglyoxime to extract Pd from alloys (Pd(DMG)2, a nice yellow precipitate), then calcination (black Pd powder) and smelting (m.p. 1550 C, not easy to obtain). Result of the failed process: a sort of syntherized Pd :)))
@sleuthandtinker48905 жыл бұрын
If you're trying to refine gold, you might look into inquarting, Cody's Lab has a video on the subject (kzbin.info/www/bejne/l4mXeqRnZs9lmqs), granted he uses Minecraft to explain the process, but his point comes across well enough, and if you're interested in conserving nitric acid, don't pre-mix the aqua regia, Add HCL, apply a little heat, and in small doses add nitric. Still good video, thanks for posting.
@OwlTech3335 жыл бұрын
Thank you! Premixing AR was intentional, but you're right inquarting would have solved my problem with PGMs
@user-qd9gl2op8qHmada Жыл бұрын
اخى العزيز هل هناك حل لرائحة الميتا الصعبه
@OwlTech333 Жыл бұрын
Ferrous sulfate
@merdaslian96063 жыл бұрын
If you finally boil gold in nitric acid, it is better than hydrochloric acid and palladium dissolves.
@francois-pellier5 жыл бұрын
Держи лайк дружище!)
@OwlTech3335 жыл бұрын
Олег, спасибо большое!
@mbykhanov5 жыл бұрын
Could you add in description approx temperatures of solutions
@OwlTech3335 жыл бұрын
room temperature (boiling only during precipitation and washing )
@adrmend4 жыл бұрын
Hi, could you tell me where i could buy CPU scrap?
@OwlTech3334 жыл бұрын
Scrap yards
@walidmahmoud39574 жыл бұрын
Whey donot used NaoH before Z powder, when I can used it
@erikaw50175 жыл бұрын
Excelente video
@sxfvvgcd4829 Жыл бұрын
صباح الخيرات ماء اسم المواد التي حايدت النتريك
@OwlTech333 Жыл бұрын
Sulphamic acid
@asdwee44445 жыл бұрын
Thanks for sharing your experience, I learn something new. Good job
@OwlTech3335 жыл бұрын
Thank you!
@salisumahmood20124 жыл бұрын
why my aqua regia solution is not dropping with SMB?
@OwlTech3334 жыл бұрын
two main reasons pop into mind: 1) not enough or any gold in solution to produce visual precipitate - add more gold 2) active oxidiser (HNO3) - add sulphamic acid to de-nox the solution
@AlAz-1lbn5AlAz5-10 ай бұрын
❤
@mbykhanov5 жыл бұрын
Плавите МАПП газом?
@OwlTech3335 жыл бұрын
O2 + пропаном
@MadScientist2673 жыл бұрын
Wash and wash again. Multiple small washes. Crystal clear (white) boil. Incremental nitric, not the "magic ratio"... And ditch the sulfamic. Use sulfuric to snatch the lead, and if you don't add more nitric than it needs to get the gold into solution, you won't have to deal with it after. SMB from there, wash, rinse, dry, melt. Be much better looking ;)
@mr.g-sez2 жыл бұрын
sorry man, did you find out what went wrong? 8:05-8:20 my new alarm sound
@OwlTech3332 жыл бұрын
PGMs were present
@mr.g-sez2 жыл бұрын
@@OwlTech333 thanks for answering
@glennkrieger4 жыл бұрын
Being the first time I've collected gold from electronics I have a question for everyone. After adding SMB I had a nice layer of gold particles at the bottom of the beaker. I then went out of town for a week. The beaker sat in my lab in my garage at temperatures above 100 degrees F for a week. When I got back I had a nice yellow liquid but no particles anymore. Adding more SMB has done nothing. The gold is in solution again. How do I retrieve it? Any help is appreciated. Thanks!!
@scott22962 жыл бұрын
Your name should be Freddy Kruger because that sounds like a nightmare, Hahahahahaha!!
@niculanicolaeofficial91142 жыл бұрын
You had extra nitric in soluțion, so gold is redisolved at higher temperature. When is cold, nitric is inactive. So or denox extra nitric with sulfamic acid, urea or, make the soluțion cold enoug and add SMB mixed with water and some HCL.
@scott22962 жыл бұрын
@@niculanicolaeofficial9114 Wrong, if gold came out of solution once with SMB, it would come out of solution twice. Also, if there was truly that much excess nitric, the gold never would've come out of solution in the first place. Sounds like there was some fools gold at the bottom of that thare beaker, Hahahahahaha!
@niculanicolaeofficial91142 жыл бұрын
@@scott2296 When the soluțion is cold, gold will precipitate even if HNO3 was not neutralized or not neutralized corectly, if soluțion will be heatead the gold wil be redizolved until :1-boil out the extra nitric, 2-neutralize the nitric with sulfamic or urea or formic acid, 3-cool down the soluțion with ice or ice cold water. Drop with SMB, Iron sulfate, etc..
@scott22962 жыл бұрын
@@niculanicolaeofficial9114 Now you're making shit up to defend your weak position, he said it was triple digits HOT, not cold, Hahahahahahaha!!!
@bilalchaudhry37995 жыл бұрын
And tell me one more thing after getting first mud from aquaregia I should wash that or re-process again with aquaregia without washing??? I feel after wash I waste some amount of gold mud my acid color also change like tea please gide me what should I do properly?
@OwlTech3335 жыл бұрын
I'm washing with concentrated HCl
@keefardin6124 жыл бұрын
it looked like you used far to much sulphamic acid at th beggining, and that evaporated the gold
@alisedattemel8011 Жыл бұрын
150 saf su 150 HCl 10 mlm nitrik yeterli kral suyu için kalay almak için alkol yad aseton yeterli
@MariuszKen3 жыл бұрын
"This is why SMB is not a good reducing agent when PGMs are present" but in anothier movie you separate gold from palladium with smb....
@Andrzej-uw1ho4 ай бұрын
10:29 add borax
@jeffreystewart87262 жыл бұрын
You need a bit of borax in the dish
@kristinahubyhuby77784 жыл бұрын
Mksdudnya apa nih?
@javidsekh68502 жыл бұрын
Funny language 😀😀😂😀
@eoneon28814 жыл бұрын
😅
@MrAllan93 жыл бұрын
Great video showing what not to do, and how to fix it after a fail. 👍
@OwlTech3333 жыл бұрын
Glad you enjoyed it!
@riyazuddinx26742 жыл бұрын
Warigud
@tomspeed20002 жыл бұрын
Its possible to add another substance to the solution to precipitate gold if SMBS not works fine? Like zinc powder or iron sulfate?can use multiple separater in one solution?
@altinara9099 Жыл бұрын
🇹🇷❤️❤️❤️👍👍👍👍
@NAFOARMY3 ай бұрын
So when we see a white shine spot, its palladium because we didnt give it enough proper HCL washes? Good lesson, thank you. I have seen that white sheen, now i know why. I had to run it through AR everytimr ive seen it.
@Jason-wv3tk6 ай бұрын
i have a similar situation but i don't know how to precipitate the gold because smb doesn't react anymore maybe because the gold concentration is too low can you guide me how to get the gold thank you
@OwlTech3336 ай бұрын
The gold in this video dropped but was not pure, in other words quantity was ok but I wasn’t happy with the quality
@abuseefnajy19985 жыл бұрын
you shoud wash the resuduim by nitric acid
@saniyah83952 жыл бұрын
Paladium
@GoldRecoveryRU5 жыл бұрын
👍
@nordicstacker57065 жыл бұрын
Hello do you know the ratio Iron sulfate to gold to Precipitat AU from my Aqua Regia. Excuse my English
@OwlTech3334 жыл бұрын
HAuCl4 + 3FeSO4 = Au + Fe2(SO4)3 + FeCl3 + HCl
@rawdawgpendants54903 жыл бұрын
I dont understand why anyone uses premixed aqua regia, incremental nitric dosing is the only way to go. You almost never have excess nitric wasted.
@OwlTech3333 жыл бұрын
Speed
@rawdawgpendants54903 жыл бұрын
@@OwlTech333 well there ya go. There IS one reason. Lol
@PaulBrown-uj5le2 ай бұрын
You used too much nitric.
@OwlTech333Ай бұрын
Intended
@karimrazak37983 жыл бұрын
Can nitric acid be eliminated by urea entering the solution?
@OwlTech3333 жыл бұрын
Yes but prefer sulphamic acid
@karimrazak37983 жыл бұрын
@@OwlTech333 How do I use it (how much is added in 1000 ml of solution)
@OwlTech3333 жыл бұрын
@@karimrazak3798 you add it until the fizzing stops
@Sergey-Master-LOMaster5 жыл бұрын
super... thanks in golds...like
@andrxox.5 жыл бұрын
👍👍👌
@nordicstacker57065 жыл бұрын
Do you know if smb fumse is Toxic. Go Channel is great
@OwlTech3335 жыл бұрын
It is (SO2) so there must be a cover on the flask and the operations must be performed in well ventilated areas or under a fume hood. "It is a toxic gas responsible for the smell of burnt matches. It is released naturally by volcanic activity" - Wikipedia
@rafaelvelez51345 жыл бұрын
No se mucho inglés pero entiendo un poco y me gustó mucho lo que no entiendo es cómo sin hacerle pruebas de simple verlo sabes que está mezclado con paladiun me puedes contestar en inglés yo entiendo.
@OwlTech3335 жыл бұрын
@10:16 small sparks that are coming out of the melt @12:14 the gold didn't sink as when you have pure gold @12:23 crystalline structure (figures) resembling fern leaves on the surface of the gold
@rafaelvelez51345 жыл бұрын
Thank my friend.
@mohammedbayad70224 жыл бұрын
at lis 15min befor aqua regia turns orange then it will work
@OwlTech3334 жыл бұрын
lis?
@mohammedbayad70224 жыл бұрын
@@OwlTech333 atlist 15min
@SocratePrimusSapiens5 жыл бұрын
Hi Thanks for sharing your job ! Pd presence should have directed you to Oxalic method for refining. Or inquarting first... But we never know for sure what are impurities... God Bless.
@jonathansonnier30782 жыл бұрын
Next time if you just melt the gold button and put the molten gold into a bucket of water it makes some nice gold shot it’s easier than hammering it and chopping it up inti shot
@haidthaidr47252 жыл бұрын
الاسف الفيديو غير مترجم
@OwlTech3332 жыл бұрын
الآن هو عليه
@haidthaidr47252 жыл бұрын
@@OwlTech333 تسلم اخي العزيز
@azoozahmed8874 жыл бұрын
Thank u very much for all videos it is a best channel about work in gold and get it do u have any video about determination the karat of gold?
@leviburns89 Жыл бұрын
So what you thought was gold being redissolved in the HydroCh acid was actually the palladium. Because gold cannot dissolve in just hydro so it must've been the contaminate. Thanks for this
@OwlTech333 Жыл бұрын
Exactly
@realtechdocumentationclear69704 ай бұрын
Sir my aqua Regia coler is same but SMB is not work
@sofianesofiane48115 жыл бұрын
Thinkyou for the video, why sometimes when i put the sodium metabisulfit in aquaregia it precipitate a white powder like the sugar with the Brown powder of gold
@kylecissell9585 жыл бұрын
Sofiane Sofiane this is likely excess SMB that is not dissolving into the solution. This can easily be tested by trying to dissolve the white powder in hot water. If it dissolves then it’s SMB, if not then it is possible that it could be something else.
@OwlTech3335 жыл бұрын
@@kylecissell958 it could be silver chloride precipitating upon dilution or lead sulphate
@sofianesofiane48115 жыл бұрын
@@OwlTech333 i think it is copper because when i put it in nitric acide it is dissolved and thé couler of acide became blue
@لقاحكوروناباليداوبالأنفهوسِمةا3 жыл бұрын
@@sofianesofiane4811 it is CuCl crystals,you are right
@hanumanjangir70563 жыл бұрын
Please gold Resort Hindi consult I am contact me gold result
@leopache9696 Жыл бұрын
Me encantó la idea de ver qué pasa si hay error y como revertirlo..
@gillesg39295 жыл бұрын
Really interesting video.......
@OwlTech3335 жыл бұрын
Thank you!
@hasitech24573 жыл бұрын
Hi, Danish here By mistake I add smb many times in aqua regia without neutralize nitric acid. I have 2 litre solution approx 70 %water. Please tell me what can I do for recovery gold. Gold only 1 gram.
@OwlTech3333 жыл бұрын
Add zinc shavings, and let them react until you get colourless solution. By that time you should have precipitates at the bottom of your flask consisting of your gold and any base metals more reactive than zinc. Decant the barren solution and wash the precipitate couple of times with HCl to remove any undissolved zinc. Decant the HCl wash. Rinse couple of times with water and decant. Dissolve the residue in 50ml HCl by adding hno3 dropwise. de-NOx with sulphamic acid and dilute with 50ml of water. Filter. Precipitate with SMB. Decant, boil in HCl, boil in water, dry and melt. If you suspect PGMs present redissolve in AR, deNOx, filter and precipitate with sodium NITRITE or oxalic acid. Wash, dry and melt. Depending on your technique your gold button should be at least 9998 pure
@ourodolixo-e5 жыл бұрын
Muito bom 👏👏👏
@panduvenamula5058 Жыл бұрын
Thank you gurujii 🙏💐
@needhelpwaquaregiadrop5623 жыл бұрын
I really need to speak to someone
@АндрейПупкин-р8л3 жыл бұрын
Спасибо за опыт, жаль что снова переочищать.
@ANCIENTASTRONAUT4113 жыл бұрын
Hey that's what my gold is palladium gold wow I wondered it melted like palladium I got 24k palladium gold wow and when it's 18k before I refine it it's takes longer to melt but when it hits 24 k I can heat it up with the kitchen burner and and it will melt the gold is so pure at 24 k I can bend the nuggets with my fingers and shape it and Soon as it hits water when hot I can pick it up out the water that's if I use water it cools fast itself but I got pounds of it I make white gold and platinium gold too wow no wonder I can add the gold to platinium I got the alien gold wow
@vincentrousseau81942 жыл бұрын
I think it s was platinium, not palladium , he don't dissolve in hcl , or maybe remake aqua regia , cause small hno3 particule?
@OwlTech3332 жыл бұрын
could be
@vincentrousseau81942 жыл бұрын
@@OwlTech333 yes i dont see you're right , pd contamination, and in janury i melted 70 gr of pd from dmg complexe, (80% pur with nickel parasite 15%) when i burn the sponge , same thing of you , small particules in fire , for this i used borax on the sponge (2mm ) and first calcination with small burner
@piakulovec69914 жыл бұрын
Hi.. What if I drop too much SMB.. How can I fixed these.. Thanks
@OwlTech3334 жыл бұрын
add dilute HCl and boil
@laljilaljiok81614 жыл бұрын
हिंदी में वीडियो दे
@waliyudayuda24154 жыл бұрын
Hebat!!!
@gaggiouy4 жыл бұрын
Hola.. cuando hierve el presipitado de oro en acido cloridrico... teoricamente se solubiliza solo el Paladio.... o el oro tambien puede pasar a solusion ?
@OwlTech3334 жыл бұрын
teóricamente el oro también
@gaggiouy4 жыл бұрын
@@OwlTech333 en el caso que el oro pase a la solucion.. como lo presipitaria nuevamente?.. con metabisulfito?
@bazonis1gp5 жыл бұрын
👍👍
@ANCIENTASTRONAUT4113 жыл бұрын
I was waiting for the nugget to fall in the whole almost a hole in one
@jamisontaylor8783 жыл бұрын
Thank you great video
@OwlTech3333 жыл бұрын
Thanks for watching!
@ImranImran-ex8pg4 жыл бұрын
Good video
@OwlTech3334 жыл бұрын
Glad you enjoyed
@antoniotrepistole13833 жыл бұрын
Great jobs 👍
@OwlTech3333 жыл бұрын
Thank you! Cheers!
@sohaibal-arefi53974 жыл бұрын
How much is the concentration percentage (w/w) of HCl and HNO3 acids?
@ambalapetlover79044 жыл бұрын
Sir I m work on 1 kg cell phone bord,,,first i clean the all bords,,then i burn the all bords,,the put them in AR solution,,,but nathing to get output,,,gold drop was fail,,,same thing i burn all connector,,and riben cable from that phones,,,and grind them,,,then put in AR,,,,this time also gold drop faild,, how can i drop gold from that solutions,,,i use sulphamic acid and smb for connectors,,,urea and smb for bords,,,,i think much copper in my solution ,,that is problem,,,,how can recover my gold from solutions
@niculanicolaeofficial91142 жыл бұрын
You have silver and tin in soluțion and gold will not drop. Add HNO4 concentrated like 10 ml, or electrolite for car bateries, and ad ice or cold water, leave it 1 hour, filter, then you can precipitate the gold if yoy had denoxed well.
@ambalapetlover79042 жыл бұрын
@@niculanicolaeofficial9114 sorry very old comment i throw out all solution
@recorder1885 жыл бұрын
Best channel in gold recovery
@OwlTech3335 жыл бұрын
Thank you!
@rafaelvelez51345 жыл бұрын
Eso es cierto.
@bilalchaudhry37995 жыл бұрын
I'm washing my gold powder with nitric after getting from aquaregia. Sometimes it color also the same like tea. Today I notic you wash with hydrochloric I'm bit confused is I'm wrong?
@OwlTech3335 жыл бұрын
Bilal ch if you have any residual chlorides by adding nitric you're making aqua regia and you are redissolving your gold
@arryowijaya49195 жыл бұрын
Sir, if I use cyanide, the precipitate has the best ingredients using aoak sir?
@alexandergottfried73093 жыл бұрын
Ещё раз привет. Вопрос. А что за бумагу для фильтрации раствора берёшь. Что можешь мне посоветовать. Спасибо.
@OwlTech3333 жыл бұрын
синяя лента
@jgtugdtgfuhxrj92524 жыл бұрын
Fak
@pastorini594 жыл бұрын
Is it possible to create aqua regia, instead of using nitric acid, use potassium nitrate?
@OwlTech3334 жыл бұрын
never tried it but it should work
@subankolyal19955 жыл бұрын
All keymikel nema
@OwlTech3335 жыл бұрын
?
@subankolyal19955 жыл бұрын
Gold All acid nema
@OwlTech3335 жыл бұрын
Suban khan aqua regia
@subankolyal19955 жыл бұрын
@@OwlTech333 thanks bardar
@teamtree3 жыл бұрын
white dust settle in bottom of aqua regia?
@OwlTech3333 жыл бұрын
Silver chloride and probably some lead sulphate
@teamtree3 жыл бұрын
@@OwlTech333 thanks for reply
@karimrazak37982 жыл бұрын
What is the best acid to extract gold from aluminum?
@niculanicolaeofficial91142 жыл бұрын
Aluminium is disolving in HCL, and you remain with gold foils, or direct AR.,to disolve all material.
@ahmedal-shinah53664 жыл бұрын
how can i re-concentrate the aqua regia after lossing his effect and no longer active and not reactive with SMB
@niculanicolaeofficial91142 жыл бұрын
1-Reconcentrate AR, add more HCL+HNO3, 2-For more reacțion with SMB, ad only HCL, after denox extra nitric, after ading HNO4, and cooling to precipitate silver, tin,, lead, filtrațion...
@dunhillkepong87054 жыл бұрын
what chemicals do you use please email me
@dunhillkepong87054 жыл бұрын
Complete procedures
@nishanthviswajith14964 жыл бұрын
200gms of gold dissolved in aqua regia.. how much smb we have to add to precipitate the gold.
@OwlTech3334 жыл бұрын
220g if de-NOx-ed
@nishanthviswajith14964 жыл бұрын
@@OwlTech333 before denox.. how much smb we have to add?.. Thanks for your quick response
@niculanicolaeofficial91142 жыл бұрын
@@nishanthviswajith1496 220-300, but if you not denox extra nitric acid with sulfamic acid or ureea, add ice to make soluțion very cold, and mix SMB with water, add to doluțion and keep it at cold place atleast 4 hours.
@АлексейПоземин-г3с5 жыл бұрын
Доброго времени суток 🤝 лайк 👍 и подписка 👍
@OwlTech3335 жыл бұрын
Спасибо!
@muriaticacid70045 жыл бұрын
Thumbs Up
@hutchplay5 жыл бұрын
If I don't use Urea or salfamic acid but I only choose evaporation. How long should It take for this step.
@OwlTech3335 жыл бұрын
how long is a piece of string? Don't know but considerably longer than if you are using sulphamic acid