In the mid 1870s the Emmens Process was being used to recover copper from low grade ores from Holmbush and Kelly Bray. The process involved the hydrometallugical extraction of copper by roasting and chloridisation.
The fact that he was developing chemical processes in east Cornwall in the 1870s suggests that the Holmbush emmens is in fact the Stephen H Emmens of latter years.
Many thanks to Tony Clarke for the information.
Emmens is turning out to be an interesting character.
Rick
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From: Rick Stewart <[log in to unmask]>
To: [log in to unmask]
Sent: Thursday, 19 January 2012, 17:06
Subject: Re: Dr Emmens
I've done a very quick google search and come up with a Dr Stephen H Emmens who was active in the states in the 1890s. He devloped an explosive, Emmensite. He also appears to have been something of a latter day alchemist claiming, in effect, to have transmutted silver into gold.
I am not entirely sure if he is the same chap as "my" Dr Emmens although it seems likely.
Rick
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From: Rick Stewart <[log in to unmask]>
To: [log in to unmask]
Sent: Thursday, 19 January 2012, 9:58
Subject: Dr Emmens
Has anyone come across Dr Emmens. He was active in east Cornwall in the 1870s and was involved in both Holmbush mine and Greenhill Brick and Arsenic works. By all acounts he was a very dodgy character. The only reference I have seen imlies that he defrauded both concerns. At the time he was active he was, apparently, and undischarged bankrupt. He also purchased arsenic from Devon Great Consols (hence my interest) but failed to provide adequate securities so the mine refused to release the arsenic.
Can anybody add anything.
Rick Stewart
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