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In the acid quench vessel, the most important consideration is protection of the vessel’s steel shell. The refractory selection will be contingent on acid resistance, thermal-cycling resistance, and temperature limitations of the refractory lining and corrosion protection linings. Many of the acid-resistant coatings that are applied to steel support vessels have limited service temperatures, requiring thermally protective layers of acid-resistant refractory in the vessel. A water quench is employed to reduce gas temperatures, and consequently there is a possibility of thermal shock.

Vitreous or amorphous silica refractories, such as ON-LINE® THERMAX® G, VERSAFLOW® THERMAX® PLUS, and NOVACON® S, will resist corrosion by most acids (hydrofluoric acid being the major exception) and have exceptionally good thermal-cycling resistance. In cases where temperatures are expected to routinely exceed 2000°F (1093°C), high-purity, shock-resistant products such as the TUFLINE® family should be considered instead of silica-based refractories.

Products
Acid Quench Vessels

Product SDS
AUREX® 30 SR An alumina-chrome brick with 30% chrome, designed for thermal shock resistance English
AUREX® 75 SR An alumina-chrome brick with 75% chrome, designed for thermal shock resistance English
AUREX® 95 P An alumina-chrome with with 90% chrome and 3% phosphorous pentoxide English
GREENKLEEN®-60 PLUS A 60% alumina, andalusite containing low cement castable
GREENLITE®-45-L PLUS A 2500°F rated lightweight castable
GREENTHERM 25 LI A 2500°F rated insulating firebrick
GREENTHERM 28 LI A 2800°F rated insulating firebrick
GREENTHERM 30 LI A 3000°F rated insulated firebrick
INSWOOL®-HP BLANKET 8# A 2300°F rated, alumina silica ceramic fiber blanket
JADECAST® 50 A low-moisture, chromia-alumina castable
KALA® A 50% alumina brick
KALA® SR A 50% alumina brick designed for thermal shock resistance English
KALAKAST AR® ADTECH® A 60% alumina castable designed for alkali resistance English
KORUNDAL XD® A 90% alumina, mullite bonded brick with low porosity
MIZZOU® CASTABLE PLUS A 3000°F rated high alumina castable
NIKE 60 AR A 60% alumina, andalusite containing brick
NOVACON® 95 A 95% alumina, cement-free, monolithic castable English
NOVACON® S A 97% silica, cement free castable English
PLASTECH® 90P STD A 90% alumina, phosphate bonded refractory plastic
RUBY® SR An alumina-chrome brick with 10% chrome, designed for thermal shock resistance English
SUPER HYBOND® 60 PLUS A 60% alumina, mullite, air-setting, plastic refractory English
SUPER HYBOND® 90 PLUS A heat-setting, 90% alumina refactory plastic
TUFLINE® 90 DM A 90% alumina brick designed for thermal shock resistance English
TUFLINE® 95 DM A 95% alumina brick designed for thermal shock resistance English
TUFLINE® 98 DM A 98% alumina brick designed for thermal shock resistance English
UFALA® A 60% alumina brick shape English
UFALA® XCR A 60% Alumina - Andulsite Brick Shape English
ULTRA-GREEN® SR An 86% alumina, ultra-low cement castable English
VERSAFLOW® 60 PLUS A 60% alumina, low cement castable
VISIL® A vitreous silica brick

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