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Precious Metals

The top-blown rotary converter (TBRC) is a general-purpose unit for copper and precious metals production. A central feature of the TBRC is the constantly high-melting and refining efficiency. For precious metals refining, input materials can include precious metal–containing ores and scrap alloys from other non-ferrous processes. Depending on the task, different water-cooled lances are used for melting, oxidation, and reduction. Due to rotation during the melting process, the hot lining is continuously turned underneath the cold-charged material, leading to optimized heating efficiency. TBRCs are processing many different quality scraps, including printed circuit boards, dust, slag, and lead-production alloys containing precious metals.

SUPER NARMAG® FG, NARMAG® FG, and NARMAG® 60 DB are excellent refractory choices for the backup linings. Magnesite chrome refractories have the strength, temperature resistance, and chemistries to resist the slags generated in TBRCs.

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Precious Metals

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22 products
Product SDS
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
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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