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- Betterton-Kroll_process abstract "The Betterton-Kroll process is an industrial process for removing bismuth from lead. The process was developed by William Justin Kroll and patented in 1922. Further improvements were developed by Jesse Oatman Betterton in the 1930s.Calcium and magnesium are added to a molten lead-bismuth bath. The resulting bismuth compounds have higher melting points and lower densities than the lead, and can be removed as dross. The compounds are treated with chlorine to free up the bismuth. Temperature used in the process is about 380-500 °C(572-932°F) . The other major processes for separating the two metals are by fractional crystallization and by the Betts electrolytic process.".
- Betterton-Kroll_process wikiPageID "1624450".
- Betterton-Kroll_process wikiPageRevisionID "525079198".
- Betterton-Kroll_process hasPhotoCollection Betterton-Kroll_process.
- Betterton-Kroll_process subject Category:Bismuth.
- Betterton-Kroll_process subject Category:Industrial_processes.
- Betterton-Kroll_process subject Category:Lead.
- Betterton-Kroll_process type IndustrialProcess113497928.
- Betterton-Kroll_process type IndustrialProcesses.
- Betterton-Kroll_process type PhysicalEntity100001930.
- Betterton-Kroll_process type Process100029677.
- Betterton-Kroll_process comment "The Betterton-Kroll process is an industrial process for removing bismuth from lead. The process was developed by William Justin Kroll and patented in 1922. Further improvements were developed by Jesse Oatman Betterton in the 1930s.Calcium and magnesium are added to a molten lead-bismuth bath. The resulting bismuth compounds have higher melting points and lower densities than the lead, and can be removed as dross. The compounds are treated with chlorine to free up the bismuth.".
- Betterton-Kroll_process label "Betterton-Kroll process".
- Betterton-Kroll_process sameAs m.05hk_9.
- Betterton-Kroll_process sameAs Q4898589.
- Betterton-Kroll_process sameAs Q4898589.
- Betterton-Kroll_process sameAs Betterton-Kroll_process.
- Betterton-Kroll_process wasDerivedFrom Betterton-Kroll_process?oldid=525079198.
- Betterton-Kroll_process isPrimaryTopicOf Betterton-Kroll_process.