Building a chemical fume hood with a plain steel blower | Page 2 | Gold
Gold Refining Basics. Equipment / Systems / Tools . Building a chemical fume hood with a plain steel blower ... The cover on the reaction vessel is loose, but there's enough suction to draw the fumes thru the scrubber. The vacuum pump is a THOMAS K48ZZEPB3533. Phil . Attachments. Bryan's 2nd batch - 1#-7.6 oz 001 (3).JPG. 94 KB · …
Filtering fumes through water | Gold Refining & Metal …
NO - if you are trying to "scrub" your fumes this is not the way to do it --- al you are doing here is making a "weak" acid which reacts with the metal which in turn produces fumes NaOH (sodium hydroxide) is used to scrub acidic fumes - do not use NaOH in your beaker for making a scrubber it will "etch" the glass - here is a link to a …
lead fumes | Gold Refining & Metal Extraction Forum
i did recycling as a home refiner a ton plus mobile boards and thousands of kg motherboards. alot of losses in start, many setups for fumes. first time think for medium type refining. setting up fumes scrubbers, furnance setups, and yes safety safety safety safety! thats really matter as i change my plans of using lead because i can not handle ...
Scrubbing | Gold Refining & Metal Extraction Forum
This required a scrubber, but it was much smaller - about 5' x 15'. The blower was 250 cfm. (3) No air dilution. Most all self-contained, do-it-in-your-livingroom, karat gold machines on the market use this approach. Everything is sealed up, as much as possible. The only thing going through the scrubber is pure fumes.
New fume scrubber design | Page 4
It is used when you have a blower that is not corrosion resistant and you blow clean air up a pipe causing the air in the hood to follow it. The reason you use a venturi powered scrubber is to scrub a small quantity of fume being sucked from an enclosed reaction. A flow of 10 CFM is good for that type application.
advice on fume scrubber | Gold Refining & Metal Extraction …
Hi Folks, looking for advice on a fume scrubber, I plan on having an upside down pvc funnel just over my reaction vessel which will be a 2000ml beaker with a small hose going out the side of my fume hood leading to three 500ml gas wash bottles packed with marbles and sodium hydroxide solution...
Will this Hood and Bucket Scrubber work? | Gold Refining …
Also, from the figures I've always worked with, the nitric fumes must spend at least 9 sec in the caustic scrubber to get scrubbed - that's considering a packed column with a spray system at the top. Therefore, at an exhaust rate of 300 cfm, the scrubber volume would have to be at least 300 x 9/60 = 45 cu.ft (340 gallons).
Nitric acid fumes | Gold Refining & Metal Extraction Forum
Using HNO3 (nitric) in any process can be dangerous. Under "build your own equipment" there are some post about building and using fume hoods and scrubbers, you might want to check them out. It is always better to be safe then sorry. Butcher has wrote some great post on NO and NO2 you might want to read also. Ken.
Fume scrubber
First - there are two types of scrubbers --- (1) closed reaction scrubber - this scrubber works by drawing the fumes from the reaction vessel through the scrubber using a vacuum pump. Here is a thread (about building a fume hood) that also discusses …
Fume hood with scrubber plans
I am designing a simple fume hood and scrubber that should eliminate all fumes. I will post pictures when I finish it. It will be a two stage scrubber that will allow the fumes to pass through very slowly. I am using aquarium bio balls to increase the the surface area that the fumes pass over. I started this project with a few goals in mind. 1.
New fume scrubber design | Page 3 | Gold Refining & Metal …
a. You will have to either have to create a pump pushing the TOXIC FUMES into the scrubber or through the water. The first will probably force the toxic fumes to leak out and the second will cause your plastic drums to collapse (trying to suck the fumes through the drums collapsed mine). b. You will make the thing not as simple to operate.
Ssr 2000 carbon filter fume cupboard.Advice required. | Gold Refining
Model ssr 2000. It uses a pre filter and a 18kg activated carbon filter. It does cater for acid fumes. Little bit lost as to the safety side of using the recirculating fume hood in my garage. Other posts refer to the nox being …
Balestri Technologies
Special plants for the refining of platinum and palladium. Balestri Technologies S.r.l.Via Aldo Moro, 9 - 52010 Capolona (AR) Italy Tel. +39.0575.420.673 Tel./Fax. +39.0575.420.100 e-mail: info@balestritechnologies PEC: [email protected] Partita IVA: 02120540519 Num. REA: AR 163232 Capitale sociale I.V.: € 10.000,00 …
Neutralizer-Scrubber of acidic fumes & gases | Page 3 | Gold Refining
Gold Refining & Metal Refining Classifieds. Vendors - Refiners, Buyers, Assayers ... In both cases, let's assume the fumes are put through your scrubber. (case 1) You have a sphere (minimum surface area) of copper that weighs 1 pound. You place it in 1/2 gallon of water and add a small amount of nitric. When the reaction subsides and the ...
Gold & Platinum Refining by the Acid Method | Shor …
This system is suitable for refining jewelry, bullion, coins, jeweler's bench sweeps and other similar material. Our aqua regia system, the Shor Aqua Regia Gold & Platinum Refining System, uses no nitric acid, is completely self-contained and employs an integrated scrubber to clean and neutralize all fumes before they are exhausted.
Balestri Technologies
The rotating device is useful in the aqua regia refining process in presence of silver higher than 10%, reducing the chance of un-dissolved material and increasing the efficiency of the process. MAIN FEATURES: For the refining of alloy having a content of Au minimum 65% and maximum 15%. Minimum purity: 999,5/1.000. Input material: metal granules.
Neutralizer-Scrubber of acidic fumes & gases | Page 4 | Gold Refining
The type of plastic will be determined by the scrubber solution and type of gas you chose to scrub. In each column fill it up about 6in with the plastics. You will need to attach a line filter to the end of each tube inside the column. This will prevent you from sucking the media out.
Making my own Fume Hood!
Generally lab hoods are designed to evacuate 100 CFM for every square foot of hood opening. This gives decent airflow to remove the dangerous fumes from the work area. Fume scrubbing is a different matter. Build a hood with an appropriately sized blower and add a scrubber to remove emissions in need of scrubbing, like NOx, or the Sulfur …
Interested in this Scrubber Design or a Simple Scrubber for …
My exhaust is 10in which will be scaled down to whatever I need. I do MOST of my refining directly in AR as I have learned that kovar capped transistors are just easiest to process this way (thanks Orvi!). They can however erupt in vigorous amounts of fumes which I really would like to at least make less toxic and harmful to the environment.
Precious metal refining Gas cleanup and product recovery
Macrotek's solution met and exceeded environmental regulations and product recovery for the precious metal refinery was over 99%. These favourable results have made the …
New with a few safety questions
Ohio, USA. Oct 16, 2022. #2. Yes, and yes. On the scrubber question, you can capture and scrub most of the fumes with a "closed system" scrubber. Note, that doesn't mean a sealed system that builds up pressure, but a "reactor" like an erlenmeyer or boiling flask attached to a series of scrubber bottles that will scrub most of the fumes …
how to build an acid resistant hood & scrubber | Gold Refining …
The throat of the wye has to be a full 8" so an 8" wye and a 8 by 6 reducer on one leg and a 8 by 4 reducer on the other leg will work. The 6 inch drop goes into the top of the hood and the 4" drop runs to the top of the scrubber. In the 6" line, just above the hood where you can reach it, add a blast gate damper.
fume hood and scrubber | Gold Refining & Metal …
Spewing NOx fumes into your work area because some joker told you their carbon filter would work. Scott . Reply. ... doing this under a hood. I use the fume hood for all other reactions, and small assay samples. I ran the vent from the scrubber, straight up through the drywall roof, then the house roof and made sure it was a good 18 inches …
Fume scrubber | Gold Refining & Metal Extraction Forum
Jan 22, 2024. #1. I need to build a fume scrubber, the fan I'm using has a cfm of 1000, I primarily use cl2 as my reagent but I also use aqua regia, piranha sometimes, I might …
A benchtop scrubber. | Gold Refining & Metal Extraction …
I have 3/8 fitting on the top of the condenser, so that is my ID of my outlet to the scrubber. I have access to some money (just not a great deal), and just about every tool known to man in my shop at our disposal. I don't know what to do to get the fumes through the scrubber. Positive pressure is easiest for me to do. But it is not the right ...
Balestri Technologies
In addition to the neutralization treatment, we realize the plant for the fume pre-treatment, which is particularly effective in the presence fumes containing Nox, emitted by nitric-based processes (such as the inquartation of gold alloys, production of AgNO 3 silver nitrate or similar processes).. The fumes abatement towers can be equipped with process …
Fume scrubber | Gold Refining & Metal Extraction Forum
Has anyone considered pre-fabricating for sale a fume scrubber system for the small refiner that could be re-assembled by a non-plumbing / non-HVAC / non-electrician person? Sadly, I can put oil in my vehicle and do a bang up job as a computer triage technician but I suck at most handyman type things. I can read instructions and put …
Gold Refining System "ZERO EMISSION"
The EFZERO gold refining plants, produced by Italimpianti Orafi, can refine all kind of gold alloys without development of any sort of acid fumes and with recovery of nitric …
Scrubber for smelting | Gold Refining & Metal Extraction …
All, The ICP result for my alloy metal is ready, Cu is 58%, Zn at 38%, and gold is not ready yet. This was from few pieces pf gold finger cards. I tried the following scheme trying to burn the toxic fumes coming out of smelting boards, to inert it through water then through a bucket filled with hot charcoal. Please advise. Regards Kj
how to build an acid resistant hood & scrubber
The fumes are not going into the water, the height the fume enters the scrubber is higher than the tank that holds the water. If those fumes are going into water the room has 2 feet of water in it! The fume enters under the grating that holds the packing, that is not the water level. This allows the fume to disperse and fill the column as it rises.