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- Newsgroups: sci.chem
- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!rpi!batcomputer!cornell!rochester!dietz
- From: dietz@cs.rochester.edu (Paul Dietz)
- Subject: Re: Gold - future Auto Catalyst
- Message-ID: <1992Nov17.045858.20410@cs.rochester.edu>
- Organization: Computer Science Department University of Rochester
- References: <1992Nov16.193403.16355@news.clarkson.edu> <1992Nov16.223502.27207@alchemy.chem.utoronto.ca> <1992Nov17.011919.14080@ucsu.Colorado.EDU>
- Date: Tue, 17 Nov 1992 04:58:58 GMT
- Lines: 35
-
- In article <1992Nov17.011919.14080@ucsu.Colorado.EDU> knapp@spot.Colorado.EDU (David Knapp) writes:
-
- > It isn't difficult to get the gold out of the converter, it is hard to
- > collect all those converters from dumps, junk yards, ditches and
- > quarries from around the world that is so hard. It is simply not profitable
- > to run around digging converters out of the junk yard to extract a couple
- > milligrams of gold from it.
-
- On the contrary: convertors are already being collected, to recover
- platinum group elements.
-
-
- > resources come from Alcoa. The world does *not* have an infinite supply
- > of *any* metal that is able to be gotten by man. Think about it, while
- > there is certainly a *lot* of metal out there, *very* little of it is
- > accesible to use because it is either too deep or too dispersed. The amount
- > of energy that goes into refining metals is *phenomenal*.
-
- There are metals that are widely dispersed.
-
- There are metals on which we expend large amounts of energy
- to refine.
-
- These two classes are largely disjoint!
-
- *Almost all* the metal we use is aluminum or iron. Almost all the
- energy expended on refining metals is on these two elements. There
- are effectively infinite supplies of both metals at concentrations
- only a few times less than current ores. In dollar volume as well,
- most of the metal consumed is the low value stuff. Even if the energy
- and dollar cost of the exotic elements like gold were to skyrocket,
- the total cost of metals would not increase by much.
-
- Paul F. Dietz
- dietz@cs.rochester.edu
-