Thermal behaviors, combustion mechanisms, evolved gasses, and ash analysis of spent potlining for a hazardous waste management

Highlights Thermal degradation behaviors of spent potlining (SPL) were quantified. An exothermic reaction dominated the overall reaction process. Fluoride volatilization rate in the flue gasses was 2.24%. Kinetic triplets pointed to the best-fit reaction model as the n-th order mechanism. The mineral deposition mechanisms and ash slagging tendency were predicted. Abstract An unavoidable but reusable […]

Australian Bauxite’s rare earth, aluminium fluoride progress

A Tasmanian miner is hoping to make good money from rare earth elements important for high-tech uses. Australian Bauxite Limited‘s June quarter report confirmed its discovery of rare earth elements in its bauxite tenement in Northern Tasmania. It said the rare earth element metals discovered were the main rare earth element components of super-magnets needed […]

Environmental Safety Analysis of Red Mud-Based Cemented Backfill on Groundwater

Excerpt: 1. Introduction As the second most important metal after steel, aluminum and its alloys are widely used in construction, transportation, electrical appliances, machinery, and other industries due to their excellent properties [1]. At present, 95% of the world’s aluminum companies use the Bayer process to treat bauxite ore in order to produce alumina and […]

Aluminium compound deconstructs sulfur hexafluoride in minutes

Researchers in the UK have developed a fast and mild method for deconstructing SF6. The method converts the potent greenhouse gas into stable aluminium(iii) fluoride and sulfide compounds, which can serve as nucleophilic sources of F? and S2- in further reactions to make valuable organic products. Source: © Shutterstock Sulfur hexafluoride circuit breakers protect electrical […]

Australian Bauxite successfully converts waste to aluminium fluoride

Matt Birney Australian Bauxite’s 87 per cent owned chemical refining subsidiary Alcore’s research laboratory on the Central Coast, NSW. Credit: File   Australian Bauxite’s 87 per cent owned chemical refining subsidiary, Alcore, appears to have made a significant technical breakthrough with its proprietary mineral production process used to produce commercial-grade aluminium fluoride from metal refining […]

Australian Bauxite chairman Paul Lennon outlines plans

A Tasmanian bauxite miner has boosted the value of its projects by developing new businesses, chairman and former state premier Paul Lennon says. “In addition to developing its second bauxite mine project in Tasmania, ABx (Australian Bauxite Limited) has substantially enhanced the value of its bauxite projects by developing two high-technology businesses that will deliver […]

Australia’s Alcore eyes aluminium fluoride for smelters

Australian aluminium technology firm Alcore is planning to produce aluminium fluoride for Australia and New Zealand’s aluminium sectors, to cut the reliance on imports that mainly come from China. Aluminium waste will be used to produce aluminium fluoride, which is an additive in the aluminium smelting process, Alcore said in a presentation outlining its aim […]

Tiwai Point monitoring bores under threat from coastal erosion

New environmental data at Tiwai Pt aluminium smelter shows sea level rise is destroying bores within scores of metres of where 100,000 tonnes of hazardous waste is stored. Photo: RNZ / Nate McKinnon Coastal erosion has already shut down one bore used to monitor groundwater for pollution, and threatens to take out a second. These […]