Corrosion of ceramic refractories exposed to a synthetic coal slag by means of the rotating-drum technique. [Spinel, chromia; spinel, magnesia; alumina-chromia]

Technical Report · Tue Oct 01 04:00:00 EDT 1985

OSTI ID:6447521

Greenberg, S; Poeppel, R B

A rotating-drum refractory/slag corrosion facility was designed to expose samples of commercial refractories to molten slag under controlled conditions of slag composition, temperature, oxygen partial pressure, slag feed rate, and the angle of inclination and rotational speed of the test section. Individual tests of a 90% Cr/sub 2/O/sub 3/-10% Al/sub 2/O/sub 3/ refractory and two different picrochromite refractories produced the same ranking of corrosion resistance as obtained from plant performance data and from the use of the rotating-cylinder test technique. However, when the two picrochromites were exposed simultaneously as alternating components of one test section, the one that had exhibited inferior resistance in individual tests showed the same resistance as the superior refractory. The implications of this anomalous effect are discussed. 6 refs., 1 fig., 6 tabs.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6447521
• Report Number(s): ANL/FE-85-9; ON: DE86005523
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
36 MATERIALS SCIENCE
360205* -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
CERAMICS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL GASIFICATION
CORROSION
CORROSIVE EFFECTS
DATA
EXPERIMENTAL DATA
GASIFICATION
INFORMATION
NUMERICAL DATA
REFRACTORIES
SLAGS
TEST FACILITIES
THERMOCHEMICAL PROCESSES