Seller provides free on line technical support 7 days a week. - Versatile. Refine and recover all kinds of Gold Scrap when acidic gases and fumes are formed by a reaction. - Compact. It takes up only about 6 sq. ft. (~0,6m2) of space for normal operation. When working, it's required a standard work bench 15 sq. ft.

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 ...

In addition, 99.99 purity gold, produced in the gold refining plants by aqua regia, can reach up to 99.999 purity by electrolysis method. In such cases, a gold electrolysis system is provided to the facility. Proses Makina manufactures and installs PLC controlled last technology turnkey plants in gold refining systems.

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 ...

A selective precipitant is added to turn the dissolved gold (and nothing else) back into solid form (particles). The solution is either decanted or filtered to recover the pure gold "mud." The gold mud is then rinsed, dried and melted. Shor's AR3G Refining System can meet all of your Aqua Regia type refining needs.

Your Price: $6,195.00. REFINEIT-30F Fumeless Multifunctional Gold and Silver Refining System. 0.5 Kilo per Day. "No Gold is Lost" technology. Can be used with three refining protocols, electroparting, fizzer cell, Wohlwill. Part Number: RFx30FSx. Availability: In …

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.

My first choice for the Silver bars would be electrolytic refining of Silver followed by recovery of the Gold from the slimes, but the volume seems too low for this and, to be honest, we have written over 20 pages on the refining and waste from Gold Refinery for a simple process like karat gold refining.

No toxic fumes produced ; Reduced amount of toxic waste ; Possibility of "No acids in use" technology ; The "Fumeless and Safe Gold Refining" technology makes the entire …

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 …

The Shor AR2G+ Aqua Regia Refining System comes with all of the equipment needed to refine, including: Work Station, with integrated Spot Plate. Basket and Filter Pouch, for easy and rapid separation of diamonds and other non-soluable materials. Beakers, caps, hoses and related hardware. Digital Hotplate.

Plus with a 10 CFM eductor, the time the fumes remains exposed to your scrubber chemistry is exceptionally long for an effective reaction. As a bonus to this design by using the exhaust over a sealed reactor, 100 ounce digestions are completely handled by the 10 cfm flow.

Our automatic gold Refining machine is mainly known for its durability and quality. The above system is able to treat from 300 gram. to 10 kg. of raw material. You are able to produce 99.99% pure gold (Au) in a single step within a production cycle that can last from 5 to 8 hours, from the preparation of the grains, to obtaining the pure ingot.

Hello, I've one question regarding my fume scrubber. It is three tower scrubber Made of PP material i use it for silver refining process (that is nitric). In …

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.

Remember that when you dissolve metals with AR or Nitric acid that 25-50% of the acid becomes this gas. Here's the post where GSP did the math for the Nitirc Acid required in the reaction: Nitric Acid Reaction for 1 pound of copper. In a nutshell he states you need 1/2 gallon of 70% HNO3 to dissolve 1 pound of copper and in that reaction you ...

REFINEIT-2KM is a multifunctional, small-footprint electrolytic system, designed to refine gold and silver. Where the gold refining process has historically been lengthy and involved, our innovative, patented process reduces gold refinement to a single step. REFINEIT-2KMK refines gold by dissolving and removing all base metals from the gold ...

1. Aqua Regia Refining. The principle and equipment for Aqua Regia. Aqua Regia has been used to separate gold from other metals for a long time. It involves using Aqua Regia, which is a Latin word for "royal …

Hi, I am trying to build a fume hood venturi system following the post by 4metals, I used a 100-liter bucket, cut the partion of it to place a door, and used a large funnle to place on top which is attached to a T connection, to serve as fume hood, Attach to blower is a paper cup that I cut the bottom of it, and also glue to it a piece of paper rolled …

The EGRS system can translate into an estimated $100,000 a day in additional income for larger gold refiners. The large refiners' cost per ounce of fine gold (refined) is $1.25 to $2.00/oz. The EGRS System can lower …

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.

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 …

Most refiners get by if they eliminate the red fume. As we said earlier the Sulfur Dioxide is less of an issue so it will be fine. Gold.refinery said: Some recommend using a more effective and different additive in the first pair of scrubbers than the second pair of scrubbers: H2O2, sodium sulfide and derivatives.

Your Price: $6,195.00. REFINEIT-30M Multifunctional Gold and Silver Refining System. 1.2 Kilo per Day. "No Gold is Lost" technology. Can be used with three refining protocols, electroparting, fizzer cell, Wohlwill. Part Number: RFx30MSx00. Availability: In Stock.

The EGRS System can lower this cost to an estimated $.29/oz. (1/5 the cost). In most cases, the elimination of toxic waste and toxic fumes from a chemical process adds cost. The large-scale gold refining industry is a …

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 this type of scrubber. :arrow: Building a chemical fume hood with a plain steel blower.

Measure the distance between the line of bolts you used to bolt on the strips on each side and cut a section about 1/2" less than this width. This is about 24" for the width of the hole plus about 8" for the door to be bigger than …

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.

Our latest modification of REFINEIT-10F, this system is combining all features of REFINEIT-10M with our proprietary fumeless mode …

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 ...

Produces no hydroxides or toxic fumes. 99.99% gold sponge finest from refining. 99.99% recovered AU, AG, PT, PD, CU, ZN. 99.99% precious metals recovery and accountability. 10X faster cycle rate/Less required …

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. …

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.

The EGRS system can translate into an estimated $100,000 a day in additional income for larger gold refiners. The large refiners' cost per ounce of fine gold (refined) is $1.25 to $2.00/oz. The EGRS System can lower this cost to …

I'm refining gold filled scrap jewelry and designing an acid fume carbon filter for my fume hood. I will be running 500-600 grams of gold filled scrap per run. Here is what I'm using: Concentrated Nitric Acid 70% Solution (68 -70% HNO₃), ACS Reagent Grade. Hydrochloric Acid 37% Solution, ACS Reagent Grade. Sulfuric Acid 96% ACS …

Key Benefits. Easy installation and maintenance. Small footprint. Versatile equipment. Products. Gold Electrowinning Cell. Mercury Retort. Elution Strip Systems. FL …

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.

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.