A novel process for the treatment of spent potlining

Conference · Tue Dec 31 00:00:00 EST 1996

OSTI ID:430566

Besida, J; Pong, T K; Adrien, R J ^[1]

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1. 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-; TRN: 96:006487-0075
• Resource Relation: Conference: 5. world congress of chemical engineering, San Diego, CA (United States), 14-18 Jul 1996; Other Information: PBD: 1996; Related Information: Is Part Of The 5th World Congress of chemical engineering: Technologies critical to a changing world. Volume III: Emerging energy technologies clean technologies remediation and emission control fuels and petrochemicals; PB: 1118 p.
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
ALUMINIUM
MANUFACTURING
FLUORIDES
NONRADIOACTIVE WASTE MANAGEMENT
LEACHING
CYANIDES
HAZARDOUS MATERIALS
MATERIALS RECOVERY
ALUMINIUM FLUORIDES
CALCIUM FLUORIDES
LINERS