منابع مشابه
RECYCLING PRACTICES OF SPENT MgO-C REFRACTORIES
The recycling options of spent MgO-C refractories from an electrical arc furnace (EAF) have been evaluated. The economic, quality of spent refractories and products made from it, the ease of implementation of a recycling practice and the interest of steel melt shops were considered. It was decided that the best option of most EAF shops would be to recycle spent MgO-C refractory as a foaming sla...
متن کاملNew Refractory Technology Provides Advantages in Monolithic Refractories
There have been a number of different refractory binder systems introduced and utilized over the last 100 years. The most long-standing systems, and the ones employed through today, are based on aluminous cements or phosphates and water that chemically combine to form hydrates, which eventually harden. These traditional systems have limitations that refractory consumers have had to take into co...
متن کاملTHERMAL SHOCK OF REFRACTORIES
Being brittle and having low thermal conductivity, refractories suffer damage and sometimes fail in service as a result of thermal shock. While the approach of those making fine-grained technical ceramics is to make their products sufficiently strong to withstand thermal stresses the refractory technologist is more cunning. He uses, often little known, devices to provide resistance to thermal s...
متن کاملTHE ROLE OF CARBON IN REFRACTORIES
Some of the scientific principles underlying the role of carbon and graphite in graphitic refractories are considered, with emphasis on the graphite phase. The highly anisotropic nature ofgraphite is a key factor in its ability to modify the properties of oxide refractories, resulting in the potential for anisotropy in the subsequent graphitic composite, depending upon the fabrication condition...
متن کاملREFRACTORIES FOR BLACK LIQUOR GASIFICATION
gasification (BBLG). One particularly harsh application is linings for gasifiers used in the treatment of black liquor (BL). Black liquor is a water solution of the non-cellulose portion of the wood (mainly lignin) and the spent pulping chemicals (Na2CO3, K2CO3, and Na2S). Development of new refractory materials for the black liquor gasification (BLG) application is a critical issue for imp...
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ژورنال
عنوان ژورنال: Interceram - International Ceramic Review
سال: 2015
ISSN: 0020-5214,2523-8957
DOI: 10.1007/bf03401101