Bismuth removal agent for lead smelting, preparation method of bismuth removal agent and bismuth removal method

Bismuth removal agent for lead smelting, preparation method of bismuth removal agent and bismuth removal method

The invention discloses a bismuth removal agent for lead smelting, a preparation method of the bismuth removal agent and a bismuth removal method. The bismuth removal agent comprises the following components in parts by weight: 60-80 parts of calcium magnesium alloy, 2-4 parts of pseudo-boehmite, 1-...

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Hauptverfasser: SHI HANFEI, YANG HONGBO, YANG JIAYI, YANG HONGLI, YANG YIFAN, JI HUINA
Format: Patent
Sprache:chi ; eng
Schlagworte:
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator SHI HANFEI
YANG HONGBO
YANG JIAYI
YANG HONGLI
YANG YIFAN
JI HUINA
description The invention discloses a bismuth removal agent for lead smelting, a preparation method of the bismuth removal agent and a bismuth removal method. The bismuth removal agent comprises the following components in parts by weight: 60-80 parts of calcium magnesium alloy, 2-4 parts of pseudo-boehmite, 1-3 parts of sodium carbonate, 1-2 parts of sodium sulfate, 3-5 parts of fluorite powder and 2-3 parts of borax. The mass fraction of calcium in the calcium-magnesium alloy is 15-30%. The blocky bismuth removal agent is obtained by preheating the bismuth removal agent, the bismuth removal agent is immersed in lead liquid by using a cage, the characteristic that pseudo-boehmite is decomposed to generate water molecules and form porous gamma-aluminum oxide under a high-temperature condition is utilized, and other components in the bismuth removal agent are matched, so that a relatively high bismuth removal effect can be achieved; and meanwhile, the slag amount is remarkably reduced, the lead recovery rate is improved,
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subjects CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title Bismuth removal agent for lead smelting, preparation method of bismuth removal agent and bismuth removal method
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