材料研究与应用
材料研究與應用
재료연구여응용
MATERIALS RESEARCH AND APPLICATION
2014年
1期
52-56
,共5页
曹洪杨%王继民%李俊红%吴斌秀
曹洪楊%王繼民%李俊紅%吳斌秀
조홍양%왕계민%리준홍%오빈수
真空炉渣%氧压浸出液%锗%萃取
真空爐渣%氧壓浸齣液%鍺%萃取
진공로사%양압침출액%타%췌취
vacuum furnace slag%oxygen pressure leaching solution%germanium%extraction
以韶关冶炼厂真空炉渣氧压浸出液为原料,以P204及Rex t-32为萃取剂萃取分离与富集锗组分,考察萃取有机相组成、酸度pH、萃取时间、相比等因素,对锗分离与富集效果的影响.研究结果表明:pH=2.0,相比V (O)/V (W)=1∶1,萃取10 min ,一次萃取锗萃取率达96.89%;富锗有机相用4mol/L氢氧化钠溶液反萃锗,相比V (O )/V (W )=3∶1,反萃15 min ,经3级反萃后反萃液中锗含量为7.81 g/L,反萃率为95.37%(以渣计);锗反萃液用1∶1硫酸中和,控制终点pH为8.0~8.5,可得到品位为37.62%的富锗料,锗沉淀率为90.51%.
以韶關冶煉廠真空爐渣氧壓浸齣液為原料,以P204及Rex t-32為萃取劑萃取分離與富集鍺組分,攷察萃取有機相組成、痠度pH、萃取時間、相比等因素,對鍺分離與富集效果的影響.研究結果錶明:pH=2.0,相比V (O)/V (W)=1∶1,萃取10 min ,一次萃取鍺萃取率達96.89%;富鍺有機相用4mol/L氫氧化鈉溶液反萃鍺,相比V (O )/V (W )=3∶1,反萃15 min ,經3級反萃後反萃液中鍺含量為7.81 g/L,反萃率為95.37%(以渣計);鍺反萃液用1∶1硫痠中和,控製終點pH為8.0~8.5,可得到品位為37.62%的富鍺料,鍺沉澱率為90.51%.
이소관야련엄진공로사양압침출액위원료,이P204급Rex t-32위췌취제췌취분리여부집타조분,고찰췌취유궤상조성、산도pH、췌취시간、상비등인소,대타분리여부집효과적영향.연구결과표명:pH=2.0,상비V (O)/V (W)=1∶1,췌취10 min ,일차췌취타췌취솔체96.89%;부타유궤상용4mol/L경양화납용액반췌타,상비V (O )/V (W )=3∶1,반췌15 min ,경3급반췌후반췌액중타함량위7.81 g/L,반췌솔위95.37%(이사계);타반췌액용1∶1류산중화,공제종점pH위8.0~8.5,가득도품위위37.62%적부타료,타침정솔위90.51%.
The effects of organic phase composition ,pH ,extration time ,phase ratio on extraction and en-richment of germanium component were investigated using P204 and Rext-32 as extractant ,and the oxygen pressure leaching solution in vacuum furnace slag as raw material .The results showed that the germanium extraction rate of 96 .89% was obtained when pH value was at 2 .0 ,phase ratio (O/W) at 1∶1 and extrac-ting time for 10min ,and germanium-rich organic phase was stripped with 4N sodium hydroxide solution , with stripping time for 5min and phase ratio at 3∶1 ,germanium content in stripping solution was up to 7 .82 g/L after three-level stripping ,stripping rate was 95 .37% (in slag count );using the stripping solu-tion with 1∶1 sulfuric acid and controlling the end pH from 8 .0 to 8 .5 ,a grade of 37 .62% germanium-rich material with germanium precipitation being 90 .51% was obtained .