Corrosion of Refractories and Ceramics

Rigaud, M.

doi:10.1002/9780470872864.ch28

Cited by 16 publications

(14 citation statements)

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“…3,4 These can appear as a single stress factor, but as a rule combinations of these stresses occur and affect the refractory lining. The most common chemical wear phenomena affecting the performance of magnesia-chromite bricks in the lead processing furnaces discussed in this paper are corrosion by acidic slags and sulfur, iron oxide attack, corrosion by high soda supply, reduction phenomena and brick damage by hydration.…”

Section: Resultsmentioning

confidence: 99%

“…Nevertheless, the refractory lining is exposed to complex and mutual wear caused by chemical, thermal, and mechanical stresses. [1][2][3][4] Therefore the exact understanding of the wear phenomena through post mortem studies is an important prerequisite for the refractory producer, since it provides the basis for both customer recommendations and innovative product development. In addition to post mortem studies, laboratory work and experimental testing carried out in the pilot plant of RHI's Technology Center Leoben enable the best possible understanding of the brick wear on the pilot scale.…”

Section: Introductionmentioning

confidence: 99%

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Overview of wear phenomena in lead processing furnaces

Gregurek¹,

Reinharter²,

Majcenovic³

et al. 2015

Journal of the European Ceramic Society

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Overview of wear phenomena in lead processing furnaces

Gregurek¹,

Reinharter²,

Majcenovic³

et al. 2015

Journal of the European Ceramic Society

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“…(2) . Bricks were prepared in specimens, 6.3 x 1.57 x 1.57 inch 3 , to design a lining to electromagnetic induction furnace.Thecorrosion resistancetest was carried out assembling eightspecimens, 2 foreachtypeof composition, filling out the crucible. Metallic chargewas addedasa sourceforliquidmetal, approximately4.41 pounds of steel SAE1020 andabout17.64pounds ofFeP alloy tosaturatethe liquid metalinphosphorus, preventingthe reductionofphosphorus oxide on slag.…”

Section: Refractories To Pirometalurgy Of Niobium Concentratementioning

confidence: 99%

Refratários Para Forno Elétrico a Arco De Pirometalurgia De Concentrado De Nióbio.

Vieira¹

2019

ABM Proceedings

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Resumo Considerações técnicas sobre refratários utilizados em forno elétrico a arco, para refino de concentrado de nióbio estão descritas neste artigo. Propriedades de diversos tijolos, divididos em dois grupos, refratários óxidos e carbonoóxidos foram estudados. Considerando a resistência a corrosão em função da composição química, as propriedades de cada tipo de tijolo estão descritas, com relação a seu comportamento em serviço. De acordo com os experimentos, melhores resultados podem ser obtidos utilizando tijolos neutros de carbono-óxidos. É importante salientar que em aplicações industriais outras variáveis podem atuar, tais como, refrigeração de carcaça, operação com arco aberto ou submerso, operação contínua ou em batelada e atmosfera de gases do forno.

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“…In the nonferrous metal industry, particularly in copper-and nickel-smelting furnaces, magnesia-chromite bricks are the refractory of choice because of their high corrosion resistance imparted by properties of the amphoteric species (Routschka and Wuthnow, 2012;Rigaud, 2011). Nevertheless, the refractory lining is exposed to complex wear caused by chemical, thermal, and mechanical stresses (Barthel, 1981;Gregurek and Majcenovic, 2003).…”

mentioning

confidence: 99%