Water/fume trap for HCL/CL in a residential area | Gold Refining
According to the MSDS on CL gas (Chlorine maybe absorbed in solution of caustic soda, soda. ash or hydrated lime.) It might be possible to use that instead of water for a fume trap, unless the fumes from that would get into the HCL/CL and stop the reaction from working, besides ing and making a mess everywhere if the liquids combined. …
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Gold Smelting & Refining Process. Gold can be concentrated and recovered by applying different gold refining process methods and the final product has variable quality. In this way, it is …
fume scrubber vacuum pump
Everett, WA. Jun 4, 2016. #1. Hello all, I am beginning to devise plans for a multi-stage fume scrubber similar to the one posted by phildreamer (I think). I am using a 2000ml reaction chamber but may want to go up one day. I will be using 6" PVC approximately 66 inches high with a fogging atomizer in the top above the packing in the …
New fume scrubber design | Page 3
2. Make the lab hood bigger to handle more reactions.. I can do AR, silver cell, inquartation and cementing silver all at the same time. I can be working at less that an arms length while these are reacting and not smell a bad fume. Bigger windows and bigger lab hood would have been great. 3. Put bigger inlet air vents on the lab hood.
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The Shor AR3G Aqua Regia Gold & Platinum Refining System is the latest iteration of Shor's aqua regia system. Very affordable, yet one of the most advanced and safest aqua regia type gold refining systems available. ... This compound is significantly better than nitric because it is far less hazardous, fumes are reduced by 90-95%, is more ...
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Designing and building my fume hood
ANSI Z9.5 2011. The ANSI Z9.5 standard will reflect a new minimum of 150 air changes per hour inside the fume hood. As long as this new minimum is adequate for the specific application, and depending on fume hood dimensions, this is approximately a 52-60% reduction in the minimum volumetric rate of air.
Gas mask & fumes danger | Gold Refining & Metal …
By small I mean less than 500 ml working solutions. When you get into liters or gallons, you are in a different ball game with the fumes produced. Don't waste your money on masks, they won't work in these situations. They are only designed for small amounts of fumes, not the volume produced from working solutions.
Fume Hood, Will it work? | Gold Refining & Metal Extraction …
In my opinion it would be better to scrub only the fumes from the reaction vessels (not mixed with all of the air flowing through the fume hood), this way the scrubber needed can be a much smaller unit, and anything that escapes the scrubber system as gases can be vented via the fume hood.
Building a chemical fume hood with a plain steel blower | Gold Refining …
Here are some pics of the fume hood I just finished building - it's basically on the same design as 4metals drawing in his first post The pic where I am hold the black shop vac pipe up at the elbow is showing about how far the 2" PVC pipe goes beyond the elbow inside the 4" pipe so that the air flow though the 2" pipe cause the air to draw ...
Query about NOx fumes | Gold Refining & Metal Extraction …
Hi all, I was wondering something about NOx fumes which evolve from gold refining and there is something which is not clear with me, ... Nitrogen dioxide will be lost unless you are using a closed system during a dissolution.It's just one of the cost of refining. Reply. Digitaria ... This mixture will fume less. The down side is the solution ...
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PCBs feed, 200 kgs per day, on a 24 working day per month it would be around 2.8 metric tonnes of PCBs per month. 2. Manual Separation of components: 2-A: South/North bridges ICs. 2-B: Pins from slots. 2-C: Pins from CPU sockets. 2-D: Pins from connectors. 2-E: The remains of the PCBs. 3- Process 1:
cheap acrylic fume hood | Gold Refining & Metal Extraction …
Alabama. Dec 13, 2012. #13. butcher said: The baffle in the back of the fume hood with the opening at the bottom of the hood is important, as many of these fumes are heavier than air, and will fall to the floor of the fume hood, the opening at the floor will suck out these fumes from the draft behind the baffle.
Risks and safety issues (my workshop and hood) | Gold Refining …
Ideally you want to get the fumes coming out as high as possible above the roof. Are you using a fume scrubber? The nitric acid you are using, 2 liters a day, will produce a noticeable odor in the alleyway. And with neighbors so close you have no choice but to scrub your fumes from the reaction. Please post pictures of your vacuum scrubber.
Automated Refining system AFFTECH 10000 | Gold Refining …
The price seems right, at $100,000. Some Italian company is selling a triple inquarting gold gold refiner for $750,000 that ends up doing about the same thing. The amount of 100 kilos - 220# - 3,215 tr.ozs. - $220,000 - per day, is a lot of gold.
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will this work for a fume hood
Smelling, and that is what is properly done in school reactions, is not inhaling. If you inhale the reaction gases in refining you will die if you are lucky because if you survive your quality of life will be so poor you will wish death instead. That is why more of this Forum is about fume hoods and scrubbers and flow rates than chemistry.
Fume scrubbing system at Gold Refinery | Gold Refining
The fume coming off the aqua regia digestion produces NOx as well as Nitrosyl chloride. The addition of ammonia to the nitrosyl chloride will generate an amide …
fume hood venting system | Gold Refining & Metal …
Easy, just a 4 >5 or 4 >6 adapter. I looked at the squirrel-cage blowers shown at the link you provided. I don't see any reason why those are so bloody expensive. For $1K+++ you could buy one heck of a lot of $40-$50 squirrel-cage blowers which would slowly but relentlessly become destroyed by acrid fumes.
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Reusing NO2 from nitric acid
10,086. Location. Pacific NW. Apr 18, 2009. #7. distill off NO2 bubble into water to make nitric acid, if less than 68% concentration can boil off water untill it reach's 68% further boiling will boil off your 68% acid, if stronger acid needed for some unknown reason, you would need to add 2 times the amount of sulfuric acid and distill off ...
