Philip Swit
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I need someone to smelt and refine raw rhodium ore in Oregon or a state along the pacific coast. Please help
- Thread starter Philip Swit
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Help Support Gold Refining Forum:
Do you have an Assay?
Welcome by the way.
What we are asking is how do you know it is Rhodium ore?
At the moment you have some rocks so why do you suspect you have any rhodium?
I’ve smelted this type of ore. The best way to deal with it is to roast it so it’s easy to crush, crush it, and use a flux like Chapmans. It runs very thick so adding a thinner will help. Use lead instead of bismuth. I’ve had buttons disappear into the cupel right before my eyes because of the way the ore reacts to bismuth.
If you want someone else to smelt it for you I would recommend calling a metallurgical lab in your area. They can crush and smelt this type of ore.
If you want someone else to smelt it for you I would recommend calling a metallurgical lab in your area. They can crush and smelt this type of ore.
Welcome to us.
So no assay or any other identification of the ore or its content?
Seriously
I send it for assay after I smelt it. Is that a problem? I have my own set up and I have years of experience looking at ore. It’s faster and cheaper for me to make a metal button from the ore and send it away.
Welcome to us.
So no assay or any other identification of the ore or its content?
Seriously
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The go to guy- maybe, is Jason with MBMM. He will know if there is anybody doing that kind of work in the NW.
The problem with that is mostly from unknown ores. Which is valid for fir the poster we reply to here.
An assay will tell you if there are toxic elements as Arsenic, Mercury, Cadmium and so on.
Additionally if done correctly one can get hints to what kind of Flux will be beneficial for that specific ore.
RichardSukhoi
Member
Naive question but with standard ore roasting does the arsenic depart as a vapour? If true, is not plain Roufosse venting still a hazard where natural concentration is at higher end? Or is the expected total mass for small ore quantity trivial? Is there a way to “get” or lock up the arsenic fumes?
I'm not a ore guy so I can't say for sure.
Anyway you will need proper hood and flues.
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The usual reply is "dilution is the solution to pollution". If you are going to test a small sample, once in a long while, the need for a condenser/bag house will never materialize. Small 1-2 lb. samples can be roasted in a remote area, away from unknowing people, animals, and food sources. Stay up wind as yes, the Arsenic departs as smoke first, then vapor. A bag house/condenser is what is used on a commercial operation. This is basically a large vacuum cleaner with filter, and a cooler to condense the fumes. Much more then a small amount and the EPA will find out eventually. Fines are very stiff.
True, but it sounds like he already knows what kind of ore he has. He didn’t ask for help identifying the ore. He asked for info on who could process it.
Yes without telling us any information.
Which sadly has become a pattern, hence my questions.
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I find this site interesting although my greater interest is in prospecting/identifying ores. I have zero experience with rhodium so did some research. Some things that may be interesting to you/others here.
1) Rhodium is commonly said to be the rarest of elements. That seems unlikely to me. Rhodium is about middle of the range for atomic weight and specific gravity: close to palladium - a little 'heavier' than lead. It may be more common than thought just not easily found in recognized quantity/concentration in the earths crust.
2) Terminology, as often said here, counts - especially when talking to professionals/experts in a field. So, an ore is something mined for its value. Thus rhodium ore would be mined for rhodium. Such ores/minerals exist - for instance rhodplumsite, a rhodium, lead sulfide mineral, would be mined for its rhodium value. Minerals that contain very minor amounts of something that is nevertheless worth extracting in the concentration/refining process, but not the primary reason that ore is mined, are NOT ores of that minor constituent. So, it is possible your ore contains traces of rhodium but unlikely, although not impossible, it is rhodium ore.
3) Rhodium is not easily identified by the techniques commonly used by prospectors/assayers to identify minerals, elements, likely ore prospects. More technical, lab, based techniques, if they are specifically aimed at quantitative analysis for rhodium seem to be necessary for certainty of just what is there. Otherwise, routine tests that might show a couple ppb or ppm, aren't meaningful beyond indicating specific testing is needed. Accurately identifying the constituent amounts of a PGM finding is not a trivial exercise.
4) Most rhodium production comes from mining/processing other ores; chiefly nickle, palladium, platinum, copper and others, where it is found as a minor constituent in the raw alloy.
5) The nature of rhodium, like platinum, is that it is durable and can be found in small 'grains'. It can accumulate in placers.
6) It would be nice to see a full-size readable copy of the full assay report.
7) The pictures are of no value in determining the sample contents. About all that can said from them is they are clearly not of high grade rhodplumsite, or any high grade rhodium ore I've been able to find pictures of.
8) Whatever those rocks contain, I think it safe to say NO ONE can be found that has interest in extracting their value - such person/company does not exist. However, if there is GOOD reason to believe they contain interesting amounts of rhodium/pgms they are quite valuable as an indicator for further prospecting. In that regard:
9) I'd be looking hard for the in situ source of the samples, and their geologic setting. I'd look for tests I could run myself to see if significant rhodium/PGM or associated elements are present. Duke's/Morsby (spelling?) on this site is helpful in that regard. I'd look for the nearest down hill water/alluvial accumulation and pan it for concentrates to test for rhodium/PGM. It is these concentrates that I'd get tested - not the raw rock. Similarly, I'd crush and pan/concentrate some of the raw rock for further analysis/assay.
Incidentally, the world's largest known deposit of rhodium appears to be in Montana. Rhodium is usually found associated with ignius rocks. I'd also be coparing te geology of my finding ith the geology of known deposits. Generally, hile deposit tyoes vary widely, knowing that something is similar to some other commercially viable deposit goes a long way in creating interest in exploration companies. Those rocks, as pictured, or not the source of any immediate money in your pocket. They may the key to hundreds of millions of dollars in your pocket 10-20 years from now - but until then thay are a drain on your time and money, valuable for the personal fun, knowledge, experience you may gain - no more.
1) Rhodium is commonly said to be the rarest of elements. That seems unlikely to me. Rhodium is about middle of the range for atomic weight and specific gravity: close to palladium - a little 'heavier' than lead. It may be more common than thought just not easily found in recognized quantity/concentration in the earths crust.
2) Terminology, as often said here, counts - especially when talking to professionals/experts in a field. So, an ore is something mined for its value. Thus rhodium ore would be mined for rhodium. Such ores/minerals exist - for instance rhodplumsite, a rhodium, lead sulfide mineral, would be mined for its rhodium value. Minerals that contain very minor amounts of something that is nevertheless worth extracting in the concentration/refining process, but not the primary reason that ore is mined, are NOT ores of that minor constituent. So, it is possible your ore contains traces of rhodium but unlikely, although not impossible, it is rhodium ore.
3) Rhodium is not easily identified by the techniques commonly used by prospectors/assayers to identify minerals, elements, likely ore prospects. More technical, lab, based techniques, if they are specifically aimed at quantitative analysis for rhodium seem to be necessary for certainty of just what is there. Otherwise, routine tests that might show a couple ppb or ppm, aren't meaningful beyond indicating specific testing is needed. Accurately identifying the constituent amounts of a PGM finding is not a trivial exercise.
4) Most rhodium production comes from mining/processing other ores; chiefly nickle, palladium, platinum, copper and others, where it is found as a minor constituent in the raw alloy.
5) The nature of rhodium, like platinum, is that it is durable and can be found in small 'grains'. It can accumulate in placers.
6) It would be nice to see a full-size readable copy of the full assay report.
7) The pictures are of no value in determining the sample contents. About all that can said from them is they are clearly not of high grade rhodplumsite, or any high grade rhodium ore I've been able to find pictures of.
8) Whatever those rocks contain, I think it safe to say NO ONE can be found that has interest in extracting their value - such person/company does not exist. However, if there is GOOD reason to believe they contain interesting amounts of rhodium/pgms they are quite valuable as an indicator for further prospecting. In that regard:
9) I'd be looking hard for the in situ source of the samples, and their geologic setting. I'd look for tests I could run myself to see if significant rhodium/PGM or associated elements are present. Duke's/Morsby (spelling?) on this site is helpful in that regard. I'd look for the nearest down hill water/alluvial accumulation and pan it for concentrates to test for rhodium/PGM. It is these concentrates that I'd get tested - not the raw rock. Similarly, I'd crush and pan/concentrate some of the raw rock for further analysis/assay.
Incidentally, the world's largest known deposit of rhodium appears to be in Montana. Rhodium is usually found associated with ignius rocks. I'd also be coparing te geology of my finding ith the geology of known deposits. Generally, hile deposit tyoes vary widely, knowing that something is similar to some other commercially viable deposit goes a long way in creating interest in exploration companies. Those rocks, as pictured, or not the source of any immediate money in your pocket. They may the key to hundreds of millions of dollars in your pocket 10-20 years from now - but until then thay are a drain on your time and money, valuable for the personal fun, knowledge, experience you may gain - no more.
Richard36
Well-known member
Jason is still very green.
I have watched a few of his videos.... Let alone; the fact that I am around again. Smiles
I have watched a few of his videos.... Let alone; the fact that I am around again. Smiles
Darkthirty
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Florence Roufosse, MD, PhD. All I could find while searching "Roufosse venting". could you elaborate?
macfixer01
Well-known member
All this effort expended over some doofus that asks a question and then never returns and doesn’t reply to anybody. It’s been almost 2 months since he started this post. 
Kind of true, and I definitely see your point, but I did pick a few nice little points from the replies. But if they aren't going to wait for an answer, why ask?All this effort expended over some doofus that asks a question and then never returns and doesn’t reply to anybody. It’s been almost 2 months since he started this post.
