State of the Art Refractory Corrosion Test Work for the Nonferrous Metals Industry

Gregurek, Dean; Ressler, A.; Reiter, V.; Franzkowiak, A.; Spanring, A.; Drew, B.; Flynn, D.R.

doi:10.1002/9781118658826.ch16

Cited by 3 publications

(1 citation statement)

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“…The refractory-slag reactions in many studies dealing with comparisons of various brick grades and their resistance against infiltration and chemical dissolution are problematic to interpret, as most experiments in the literature have been carried out in air atmosphere with oxygen pressure P O 2 < 0:2 atm (Gregurek et al, 2012(Gregurek et al, , 2013a(Gregurek et al, , 2013b. The homogeneity and, as a consequence, e.g.…”

Section: Resultsmentioning

confidence: 99%

Freeze lining formation on water cooled refractory wall

Kalliala

Kaskiala

Suortti

et al. 2015

Mineral Processing and Extractive Metallurgy

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The experimental study was focused into effects of a ceramic refractory lining, covering a metallic cooling element, as well as to properties and microstructures of the freeze lining formed in such cases in copper smelting and converting slags. The modified heat transfer pattern, due to the ceramic refractory lining and its air gap(s), increases effectively the average freeze lining temperature, heating its cold face from 30 to 50°C of the direct contact close to 800–900°C, even with refractory thicknesses of a few millimetres. This general feature has direct consequences to the microstructure and thickness of the freeze lining and probably also to its growth rate. The observations about effects of high copper iron silicate slag on the chemical corrosion of direct bonded magnesia–chromia refractories suggest that copper oxides are not the most aggressive components of direct to blister smelting slags. Impregnation of the fluid direct to blister slag into the open porosity of the brick, even on the cooled furnace wall, extends quickly in the initial contact several hundred micrometres into the refractory.

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Section: Resultsmentioning

confidence: 99%