Good to see you back OT 👍

How ya doing Owl. Nice to see you back with more great vids!

Hello, I just did the same thing, just a bit different. I did some chemistry math and for 100 g of pins (calculated as Cu) I need 400 ml of 30% HCl and 150 ml of 35% peroxide (is cheap 5 liters costs 200 CZK). I use 4 liter glass jar (for pickled cucumber), I made bubler through the lid and outlet hose goes into water with Na2CO3 so the acidic gases are neutralised. My batch is cca 200 g, half liter of water, 1 liter of HCl (some more) and 300-400 ml of 35% peroxide incrementaly. I start with just a bit of peroxide (not to produce chlorine gas) and solution turns yellow. Every morning I add a bit of peroxide like 50 ml. Solution turns green from Cu 2+, later turns yellow/brown from Cu1+, as Cu + Cu2+ goes into 2 Cu1+. When I add peroxide, it turns green and warm as Cu1+ turns again to Cu2+ and disolves more Cu. After about 5-7 days of bubling solution stays green and foils float. I shake the jar and see if there are some not solved pins. I add small amount of peroxide to disolve the rest and not disolve the gold (I check with SnCl2). Then filtration is easy, I use Tchibo coffe filter and Tchibo ceramic coffe funel. Then I cupel the gold with bismuth in furnace at 1000 °C. XRF says above 99% purity. I had more cca 3,5 g from about 230 g batch.

@knowldedge5012

11 ай бұрын

Why cupel with bismuth and not refine in AR?

@frantiseklaluch6605

11 ай бұрын

@@knowldedge5012 It is easier and faster for me, as I have furnace. Turn on, put material in, wait, done. Also, I do not work with nitric yet and no space for such chemistry. May be later, for final refining I will use HCl and peroxide for disolving gold, that takes time and heat, but is safer procedure...

@knowldedge5012

11 ай бұрын

@@frantiseklaluch6605 is this a regular melt or do you have to add certain things when melting? Great work.

@frantiseklaluch6605

11 ай бұрын

@@knowldedge5012 I melt gold with bismuth (replacement for lead) in cupel in furnace 1000 °C, oxides of base metals (and bismuth) are absorbed by cupel and result is bead of quite pure gold (99+%).

@knowldedge5012

11 ай бұрын

@@frantiseklaluch6605 thank you

Good work and videos 👍👍🤗

@OwlTech333

Жыл бұрын

Thank you 👍

Vary vary lengthy process is this feasible commercially. Better dissolve in AR and settle down the gold with ferrous sulfate.

Thanks for another video. And learning about cuprous chloride.

@OwlTech333

Жыл бұрын

Thanks for watching!

@khanacknowledge7604

Жыл бұрын

@@OwlTech333 is this proper results. Or it can be better with other methods!!?

@OwlTech333

Жыл бұрын

This is the gold from this pins, with other method I had identical result, they’re just low yield

@khanacknowledge7604

Жыл бұрын

@@OwlTech333 so this is better with lot of time. I was dissolving 600g of medium quality pin with nitric solution. But due to excess copper chloride, I could not separate the gold flakes

@OwlTech333

Жыл бұрын

@@khanacknowledge7604 how did you get the chloride if it was a nitric solution?

Good work 😊

@OwlTech333

Жыл бұрын

Thanks 😊

cool to see a video from the owl. ive been thinking about you guys yesterday, its been a while. any update on the 10kg gold corner bga recovery?

@OwlTech333

Жыл бұрын

Noting even after remelting the slags… anyway we plan to use the same process on verified BGAs

Thats quite the vacuum flask!But also why do you work on the floor?Cant you put together a couple of cheap benches?It would save your back.

شما وقتی هیدروکسید میزنی طلا به اکسید تبدیل میشه وبعد در اسید کلردیک هم حل میشه به این توجه کردین

why does it turn blue? i soaked cpu mobile phone and other scrap gold plated pieces. Been in a gallon jug for months after it was in a hard clump of clay like mixture. i originally broke the glass beaker that the solution dried up in so i swept everything together put itall in a tin coffee can. solution was 15% vinegar and 3% hydrogen peroxide salt and rehydrated the Mass with hydrogen peroxide 3% and 6% vinegar and strained it through a kitchen strainer separating all the chunkier pieces out washing and rinsing the scrap several times and ending up with a 1 gallon water jug full of blue liquid with sediment at the bottom. The sediment appears to be three different colors beige color , a yellow color, and a tan color. The yellow layer is on top and in the middle of the beige colored layer. tan color layer is the bottom layer. so to be clear from the bottom up. Tan color, beige color thin layer Yellow color beige color thin layer yellow in total the sediment is less then a half inch tall from the bottom of a 1 gallon water jug. what could the colored sand like sediment be? ps if i even slightly touch the jug, puff cloudy blue liquid. super fine powder states to fog the water from the bottom sediment takes a long time to settle again.

@OwlTech333

7 ай бұрын

Could be anything really

In this method you can recover the copper in the solution by iron cementing. But can you recover the copper in lead cupellation?

@OwlTech333

11 ай бұрын

You don’t get much copper in lead that’s whole idea, you don’t dissolve the base metals

Nice one

@OwlTech333

Жыл бұрын

Thanks 🔥

Nice 👍

@OwlTech333

Жыл бұрын

Thanks!

I forgot about the nitrite. Might use it when I get to some chemistry soon

@OwlTech333

Жыл бұрын

Very convenient

Не понял практического значения данной методы. Что это за мазохизм? Месяц мариновать, а потом неделю весь этот кисель фильтровать... так себе удовольствие.

How to clean the Black Gold precipitate and thank you

@OwlTech333

Жыл бұрын

What do you mean by black gold?

@mahfuoz63solidworks3

Жыл бұрын

@@OwlTech333 Welcome professor: after placing the precipitate on the aqua regia solution, the precipitate is precipitated, and its black color shows how to purify and wash it to Brown.

@OwlTech333

Жыл бұрын

@@mahfuoz63solidworks3 boil three times in water, then couple of times in HCl, then three more times in water.

@mahfuoz63solidworks3

Жыл бұрын

@@OwlTech333 شكرا لكم

What is your preferred method for this material? Looks like quite a bit of chemical waste produced with this method. Shame about the gold corner BGAs. Great vid and nice bead OwlTech, thanks for sharing.

@OwlTech333

Жыл бұрын

Lead is much quicker, we processed 20kg of pins in one day

@NOFX0890

Жыл бұрын

I do enjoy the lead bath videos. I went looking for yours last week. A gram in the hand is better than 2 in the bush. They do say that....

@frantiseklaluch6605

Жыл бұрын

@@OwlTech333 I saw that, lead bath is real scale up technology. But I do not have room/space nor technology nor experience to do it. Also, not so much material... My pickle jar does my small jobs. Next level will be RAM chips...

Для подобного материала была унивесальная смывка, видел на канале " Электрик Агрис" , но не успел преобрести парень пропал, может вам удастся с ним связатся. Свой реагент он называл "чернила".

@user-ox7ln9cv2r

Жыл бұрын

Какие чернилы😂Давно все смывают китайским реагентом JinChan + каустик + красная кровяная соль

@alexhsabro2028

Жыл бұрын

@@user-ox7ln9cv2r дженчан - цианид и очень опасен , плюс две промывки и кипячение, при объемах , это то ещё занятие и даже с породой его эффективность не более 70% проверял многократно. Проще концентратор у Франсуа заказать и эфект 99,99% чем работать с цинком.

@OwlTech333

Жыл бұрын

​@@user-ox7ln9cv2r лучше с йодом

Bonsoir comme toujours j'aime beaucoup

Приветствую! Где применяется такой сверхтонкий фильтр, где искать?

@OwlTech333

Жыл бұрын

воздушный камень для аквариума

@alligator8811

Жыл бұрын

@@OwlTech333 на ведро белая сетка?

@OwlTech333

Жыл бұрын

@@alligator8811 это фильтр для сушильной машины

🇧🇷👍🏆👏👏👏

В следующем видео: афинаж бетонного пола и чьих-то ботинок.

@OwlTech333

Жыл бұрын

обязательно сделаю такое

Я так понял что это был импорт .

@OwlTech333

Жыл бұрын

Да

20 дней)))))))))))))) Что цыанидами смыть не судьба на 3 минуты? Или за 5 минут свинцом )))))))) 20 дней газовой атаки

@OwlTech333

Жыл бұрын

34 дней

@user-sd1ur4bn2r

Жыл бұрын

@@OwlTech333 Ну ты силен))

@OwlTech333

Жыл бұрын

@@user-sd1ur4bn2r :)

@user-eh5yx2sf7c

Жыл бұрын

Американцы эту технологию любят, у них азотка очень дорого стоит, а нормальная солянка в хоз. маге свободно продается

🤦‍♂️Месяц на такой выход.?ты либо глупый,либо у тебя дохренища времени. А классический метод не пробовал?..-азотка-царь-сульфат железа/гидразин гидрад?..результат максимум часов за шесть.

@OwlTech333

Ай бұрын

Ты как думаешь? Пробовал или нет?

@user-nb3oo1rj7v

25 күн бұрын

@@OwlTech333 Думаю пробовал.🤔 Но как говорится;-Мы не ищем лёгких путей.😁