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低酸浸出-溶剂萃取法从含铟渣中回收铟曾冬铭,舒万艮,刘又年,雷存喜(中南大学化学化工学院,长沙410083)摘要:用正交实验法研究从复杂含铟冶炼渣中回收铟的低酸浸出-溶剂萃取工艺,探讨铟锑分离的条件。含铟锑渣用2mol/LH2SO4和30～40g/LNaCl两段逆流浸取,浸出温度100℃,铟的浸出率为80%。用P204-磺化煤油体系,相比O/A为1∶3,水相保持浸出液酸度,3级逆流萃取,铟的萃取率达98%以上,用30g/L草酸溶液2次洗脱负载有机相中的锑,脱除率99%... 2025-05-02103104.43 KB4页24
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资产负债表地勘表一编制单位：九一五探矿工程大队单位：元项目行次年初数年末数项目行次年初数年末数货币资金13,319,866.41899,999.73短期借款493,500,000.00短期投资2其中：银行借款503,500,000.00应收票据3应付票据51应收股利4应付账款522,668,519.653,670,192.26应收利息5预收账款53240,000.0037,228.40应收账款68,119,494.647,321,616.31应付工资54减：坏账准备781,194.9180,675.35应付福利费55应收账款净额88,038,299.737,... 2025-05-0410363.5 KB9页25
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