廢銅回收或(huo)含銅(tong)物料的再生利用一般有兩種途徑：

一是冶(ye)金(jin)熔煉(lian)再(zai)生(sheng)(sheng)，再(zai)生(sheng)(sheng)銅(tong)的生(sheng)(sheng)產可以采(cai)用火(huo)法(fa)冶(ye)金(jin)工藝(yi)，也可采(cai)用濕法(fa)冶(ye)金(jin)工藝(yi)，目前再(zai)生(sheng)(sheng)銅(tong)生(sheng)(sheng)產主要(yao)采(cai)用火(huo)法(fa)工藝(yi)，但濕法(fa)冶(ye)金(jin)工藝(yi)生(sheng)(sheng)產再(zai)生(sheng)(sheng)銅(tong)的應用日益廣泛

二是含(han)銅(tong)(tong)(tong)物料(liao)(liao)的(de)(de)(de)直(zhi)(zhi)接利(li)用(yong)。含(han)銅(tong)(tong)(tong)物料(liao)(liao)的(de)(de)(de)直(zhi)(zhi)接利(li)用(yong)，是指含(han)純凈(jing)的(de)(de)(de)銅(tong)(tong)(tong)物料(liao)(liao)不需(xu)經過(guo)一(yi)般(ban)雜銅(tong)(tong)(tong)生(sheng)產的(de)(de)(de)氧化一(yi)還原一(yi)精煉(lian)等過(guo)程(cheng)，直(zhi)(zhi)接熔煉(lian)為精銅(tong)(tong)(tong)錠和性質相同或相近的(de)(de)(de)銅(tong)(tong)(tong)合金。如(ru)將黃銅(tong)(tong)(tong)廢料(liao)(liao)熔煉(lian)成(cheng)黃銅(tong)(tong)(tong);青(qing)銅(tong)(tong)(tong)廢料(liao)(liao)熔煉(lian)成(cheng)青(qing)銅(tong)(tong)(tong)，白銅(tong)(tong)(tong)廢料(liao)(liao)熔煉(lian)成(cheng)白銅(tong)(tong)(tong)等。

此(ci)方案具(ju)有工(gong)藝流程(cheng)短、設備(bei)簡單(dan)、金屬回(hui)收(shou)率(lv)高、能耗少、成(cheng)本(ben)低(di)等優點(dian)。因(yin)此(ci)工(gong)業發達國(guo)家都力(li)求增加廢(fei)銅(tong)(tong)直接(jie)利(li)用的比(bi)例。如日本(ben)直接(jie)利(li)用廢(fei)銅(tong)(tong)的比(bi)例為80%，意大(da)利(li)為90%，英國(guo)為50%，美國(guo)為60%，之所以發達國(guo)家廢(fei)銅(tong)(tong)直接(jie)利(li)用率(lv)較高，是因(yin)為這些國(guo)家廢(fei)雜銅(tong)(tong)收(shou)集過程(cheng)中分(fen)類清晰(xi)。

將(jiang)已(yi)區分(fen)牌號(hao)的純凈(jing)銅合(he)(he)金廢(fei)料配入適當(dang)的純金屬(shu)和中(zhong)間合(he)(he)金(用銅和銅合(he)(he)金元(yuan)素(su)事先熔(rong)制成(cheng)熔(rong)點較(jiao)低的一(yi)種合(he)(he)金)經熔(rong)煉(lian)即可制得各種牌號(hao)的銅合(he)(he)金。再生原料熔(rong)煉(lian)銅合(he)(he)金，目前廣泛使用工頻感應爐(lu)。從合(he)(he)金中(zhong)除去(qu)菲金屬(shu)夾(jia)雜(za)物的簡單(dan)而有效的方(fang)法是過濾法。可用破碎的人造剛玉、鎂(mei)(mei)砂、熔(rong)化過的氟(fu)化鈣和氟(fu)化鎂(mei)(mei)作(zuo)過濾介質，其(qi)粒度(du)為5～10mm，過濾層(ceng)厚度(du)為60～150mm，過濾時還可促迸金屬(shu)的部(bu)分(fen)脫(tuo)氣