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Abstract

This work aims for the development of methodology for the utilization of the waste catalyst from hydrocarbons catalytic cracking process in the production of alumina–silica refractories. This residue was used in substitution of part of conventional raw materials, with the consequent ambient and economic profit. Some formulations were selected based on the chemical and mineralogical compositions of refractory bodies. They were fired in similar temperatures to those used for the production of commercial refractories. The analysis of the technological properties of the bodies revealed that the composition containing 15 wt% of catalyst waste had suitable characteristics. The final product showed technical parameters similar to that of a commercial refractory material.

Keywords

Refractories waste catalyst processing microstructure

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References

Abadie E. Class notes of process of fluid catalytic cracking PETROBRAS/RH/UC/DTA, 2003.

NBR-1004. Brazilian technical standards. Solid waste: classification, 2001. CFR – Title 40 – Protection of environmental – Part 260-265 – hazardous waste management.

Technical Bulletin Petrobras. Recovery of elements of waste zeolites. Rio de Janeiro, vol. 46, 2003, pp.351–365.

Brosnan

Schacht

. Alumina-silica brick. Refractories handbook , New York: Marcel Dekker, 2004; 79–107.

Tucci A, Esposito L, Rastelli E, et al. Use of sodalime scrap-glass as a fluxing agent in a porcelain stoneware tile mix. J Eur Ceram Soc 2004; 24: 83–92.

Braganca

Vicenzi

Guerino

. Recycling of iron foundry sand and glass waste as raw material for production of whitewares. Waste Manage Res 2006; 24: 60–66.

Santos

. Ciência e tecnologia de argilas 1989; vol. 3, São Paulo, Brazil: Edgard Blücher Ltda.

Lee

Iqbal

. Influence of mixing on mullite formation in porcelains. J Eur Ceram Soc 2001; 21(14): 2583–2586.

Sinton

. Raw materials for glass and ceramics: sources, process, and quality control , New Jersey: John Wiley & Sons, 2006.

10.

American Standard for Testing and MaterialsASTM book of standards , Atlanta: ASTM, 2001.

11.

Segadães

. Refratários , Portugal: Universidade de Aveiro, 1997.

12.

Pandofelli

Fadel

. Thermal shock in advanced ceramics and refractories. Cerâmica 1989; 35(228): 1–6.

13.

Bradt

Schacht

. Fracture of refractories. Refractories handbook , New York: Marcel Dekker, 2004; 11–37.

Waste catalyst as raw material in alumina–silica refractories

Abstract

Keywords

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References