[D8949ABN], Letter from Wythe Lead and Zinc Mine Co, John C Raper to Thomas Alva Edison, July 17th, 1889
https://edisondigital.rutgers.edu/document/D8949ABN
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Metadata
- Title
- [D8949ABN], Letter from Wythe Lead and Zinc Mine Co, John C Raper to Thomas Alva Edison, July 17th, 1889
- Editor's Notes
- I happen to notice in a Lynchburg paper that you have invented an ore seperator to separate iron from accompany gangue - In our mine here we have Galera zinc and concentrate zinc ores blend and brown hematite iron ore blended together and we can make a very good separation of the ores with exception of the carbonate and silicate of zinc the specific gravity the zinc anda iron ore being so nearly equaly we cannot make a perfect separation on our rigs. Do you think your magnetic treatment would make a perfect separation of the carbonate and silicates of zinc from the brown hematic iron ores. I am hoping t ohear from you at an early date we are yours truly
- Recipient
- Edison, Thomas Alva
- Date
- 1889-07-17
- Type
- Letter
- Subject
- Ore milling and separation
- Folder ID
- D8949-F
- Microfilm ID
- 126:1024
- Document ID
- D8949ABN
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- Has Version
- Archive.org Viewer, Microfilm Series Reel 126
- Item sets
- [D8949-F] (D-89-49) Mining -- General