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Secondary Copper

Reverberatory furnaces are commonly used for melting and refining large quantities of lower-grade copper scrap in a single unit. Furnace capacities range from 50 to 500 tons. New furnace designs include tilting furnaces for fast melting. Equipped with new burner technology, they are efficient for melting and refining with the use of tuyeres and stirring plugs. The tilting system aids in charging and deslagging operations.

Refractory selection in secondary copper includes fused-grain magnesite-chrome refractories like SUPER NARMAG® FG and magnesite-chrome brick like NARMAG® 60 CU and SUPER NARMAG® 142. These products are specially designed to handle the thermal cycling and corrosion resistance against the slags generated with lower-grade copper scrap. In the newer, tilting reverb furnace designs, HWI is using alumina-chrome products, such as AUREX® 30 SR, for greater corrosion resistance in these furnaces, along with fused mag-chrome brands, like SUPER NARMAG® FG. Monolithics include SHAMROCK® 493 CASTABLE, HP-CAST® ULTRA C10, and PLASTECH® RUBY® 20.

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Secondary Copper

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25 products
Product SDS
AUREX® 30 SR An alumina-chrome brick with 30% chrome, designed for thermal shock resistance English
HP-CAST ® ULTRA C10 A high purity alumina, 10% chrome containing, ultra-low cement castable English
NARMAG® 60 CU A mixed-bond magnesia chrome burned brick for the copper industry.
NARMAG® 60 DB A direct-bonded, 65% magnesia, 18% chromia burned brick English
NARMAG® 80 DB A 10% chromia-containing, direct-bond, magnesia chrome burned brick English
NARMAG® 95B A 95% magnesia burned brick English
NARMAG® FG A 19% chromia, rebonded fused-grain magnesia-chrome burned brick English
NARMAG® FG CASTABLE An ultra-low cement, magnesia and chrome containing castable
NARMAG® FG FINE MORTAR DRY A magnesia chrome mortar English
NARMAG® FG GUN A magnesia chrome gunning mix English
NARMAG® FG RAM MIX A magnesia chrome ram mix English
NARMAG® FG-HS CASTABLE A magnesia chrome castable
NARMAG® HNF 27 A 27% chrome-containing, magnesia-chrome burned brick English
NARMAG® HNF 31 A burned, magnesia chrome brick English
PLASTECH® RUBY® 20 A 20% chrome, phosphate bonded refractory plastic English
SHAMROCK® 391-TR MORTAR An alumina-chrome mortar English
SHAMROCK® 392 DRY MORTAR A dry, phosphate bonded, alumina-chrome mortar
SHAMROCK® 392 MORTAR A chrome alumina mortar
SHAMROCK® 394 DRY MORTAR A dry, heat-setting, alumina-chrome mortar
SHAMROCK® 493 CASTABLE A low-moisture, chromia-alumina castable
SHAMROCK® 885 PLASTIC Chrome-Alumina Plastic
SUPER NARMAG® 142 A 60% magnesia, 20% chrome burned brick
SUPER NARMAG® 145 A 60% magnesia, 20% chrome burned brick English
SUPER NARMAG® 148 CU A semi-rebonded magnesia chrome burned brick designed for the Copper Industry English
SUPER NARMAG® FG A magnesia chrome burned brick English

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