铜业工程
銅業工程
동업공정
Copper Engineering
2015年
4期
75-77
,共3页
电解%碲阳极泥%还原%浸出%改进%回收
電解%碲暘極泥%還原%浸齣%改進%迴收
전해%제양겁니%환원%침출%개진%회수
electrolytic%tellurium anode slime%reduction%leach%improvement%recycle
在碱液-电解工艺生产1#精碲时，电解采用不溶性阳极，反应过程中产生氧气，在阳极上出现副产物。贵冶精碲生产中产生的碲阳极泥含碲约40%左右，采用酸浸还原工艺进行回收，碲回收率约为90%。通过实验探索找到了一种处理碲阳极泥的新工艺，在浸出温度95℃、浸出时间3h、液固比5、还原剂用量为3倍碲金属量的条件下加入还原剂A进行浸出，碲阳极泥中有价金属的回收率可由90%左右提高至95%以上。
在堿液-電解工藝生產1#精碲時，電解採用不溶性暘極，反應過程中產生氧氣，在暘極上齣現副產物。貴冶精碲生產中產生的碲暘極泥含碲約40%左右，採用痠浸還原工藝進行迴收，碲迴收率約為90%。通過實驗探索找到瞭一種處理碲暘極泥的新工藝，在浸齣溫度95℃、浸齣時間3h、液固比5、還原劑用量為3倍碲金屬量的條件下加入還原劑A進行浸齣，碲暘極泥中有價金屬的迴收率可由90%左右提高至95%以上。
재감액-전해공예생산1#정제시，전해채용불용성양겁，반응과정중산생양기，재양겁상출현부산물。귀야정제생산중산생적제양겁니함제약40%좌우，채용산침환원공예진행회수，제회수솔약위90%。통과실험탐색조도료일충처리제양겁니적신공예，재침출온도95℃、침출시간3h、액고비5、환원제용량위3배제금속량적조건하가입환원제A진행침출，제양겁니중유개금속적회수솔가유90%좌우제고지95%이상。
during alkali electrolytic process of 1 # pure tellurium production, insoluble anode was used in electrolysis , oxygen could be generated in the reaction process and by-products were appeared in the anode. Around 40%tellurium contained in Guixi smelter’s tellurium anode slime, acid leaching reduction process was adopted and tellurium recovery rate was about 90%. Through exploration the experiment, a new recovery technology of tellurium anode slime was found. By using reducing agent A leaching under the conditions of 95℃leaching temperature, 3h leaching time, 5 liquid-solid ratio, 3 times of tellurium metal quantities reducing agent feeding, the recovery rate of valuable metals in tellurium slime could be increased from 90%to 95%above.
