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DESULPHURIZING PROCESS FOR A MOLTEN PIG IRON AND A DESULPHURIZING AGENT
DESULPHURIZING PROCESS FOR A MOLTEN PIG IRON AND A DESULPHURIZING AGENT
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机译:熔融猪铁和脱硫剂的脱硫过程
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摘要
1390814 Desulphurizing agent AIKOH CO Ltd 5 May 1972 [8 May 1971] 21102/72 Heading C7M A desulphurizing agent for molten pig iron comprises in wt per cent. 32-65 Na2 CO 3 , 5-45 NaOH and 10-30 water. It may also contain up to 20 CaCO 3 and/or Ca (OH) 2 , up to 18 of at least one of Ca B 4 O 7 À 6H 2 O, CaB 4 O 7 À 4H 2 O, Na 2 B 4 O 7 , Na 2 B 4 O 7 À 1DH 2 O, or CaF2 and 4-12 of Portland cement, blast furnace cement, white cement, iron cement or alumina cement. The agent is formed by mixing the components in air, preferably for 5-15 mins. until a part or the whole of the NaOH is converted to Na 2 CO 3 . The desulphurizer is either added to the ladle prior to adding the molten pig iron or to the pig iron while it is being blown with nitrogen.
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机译:1390814脱硫剂AIKOH CO Ltd 1972年5月5日[1971年5月8日] 21102/72税号C7M熔融生铁的脱硫剂含量为wt%。 32-65 Na2 CO 3、5-45 NaOH和10-30水。它还可能包含多达20个CaCO 3和/或Ca(OH)2,多达18个Ca B 4 O 7 ‑ 6H 2 O,CaB 4 O 7 ‑ 4H 2 O,Na 2 B 4 O中的至少一种7,Na 2 B 4 O 7-1DH 2 O或CaF2和4-12的波特兰水泥,高炉水泥,白水泥,铁水泥或氧化铝水泥。通过将组分在空气中混合,优选混合5-15分钟来形成试剂。直到部分或全部NaOH转化为Na 2 CO 3为止。在添加熔融生铁之前将脱硫剂添加到钢包中,或者在用氮气吹扫时将生铁添加到生铁中。
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