A novel process for the treatment of spent potlining
Conference
·
OSTI ID:430566
- Univ. of Melbourne, Parkville (Australia); and others
A description of a new process for the treatment of spent potlining (SPL) is presented in this paper together with a comparison between laboratory results and those obtained from a 100kg demonstration plant. The process uses a series of aqueous leaching steps, conducted at low temperature, to extract cyanide from SPL and recover the fluoride values as smelter grade AlF{sup 3} or acid grade CaF{sup 2}. The final carbonaceous residue contains the refractory compounds corundum and sodium beta-aluminate and TCLP tests demonstrate that it meets environmental requirements for land filling. 2 refs., 2 figs., 5 tabs.
- OSTI ID:
- 430566
- Report Number(s):
- CONF-960730--
- Country of Publication:
- United States
- Language:
- English
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