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光伏回收的多晶硅回收有什么应用价值?

信息来源:www.metalygomez.com   2021-07-30 08:41:36

上门拆卸收回业务(wu)范围:
    1、收回(hui)单(dan)晶硅(gui)(gui)片:各种(zhong)单(dan)晶硅(gui)(gui)圆形(xing)棒、片及方(fang)形(xing)棒、片等半(ban)导(dao)体电(dian)子类产品(pin)。
    2、收(shou)回多晶(jing)硅片:多晶(jing)硅硅锭、硅片、电(dian)池片、铝合金彩色边框(kuang)组件、环(huan)氧树脂(zhi)封装(zhuang)、光(guang)电(dian)幕墙组件、光(guang)电(dian)幕墙组件(全玻组件)、太(tai)(tai)(tai)(tai)阳(yang)能草坪(ping)灯(deng)、太(tai)(tai)(tai)(tai)阳(yang)能庭院灯(deng)、太(tai)(tai)(tai)(tai)阳(yang)能通讯电(dian)源(yuan)、太(tai)(tai)(tai)(tai)阳(yang)能移(yi)动电(dian)源(yuan)、太(tai)(tai)(tai)(tai)阳(yang)能级多晶(jing)硅等。
    3、收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)废旧硅(gui)(gui)(gui)(gui)(gui)片(pian)、组件收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)、太(tai)阳(yang)能发(fa)(fa)电(dian)(dian)(dian)板收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)、电(dian)(dian)(dian)池(chi)片(pian)收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)、抛光片(pian)收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)、硅(gui)(gui)(gui)(gui)(gui)粉(fen)收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)、多晶(jing)(jing)硅(gui)(gui)(gui)(gui)(gui)收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)、单晶(jing)(jing)硅(gui)(gui)(gui)(gui)(gui)收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)、硅(gui)(gui)(gui)(gui)(gui)料(liao)收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)、多晶(jing)(jing)片(pian)皮收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)、多晶(jing)(jing)硅(gui)(gui)(gui)(gui)(gui)片(pian)收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)、晶(jing)(jing)圆片(pian)收(shou)(shou)(shou)(shou)回(hui)(hui)(hui)等。。在太(tai)阳(yang)能利用上,单晶(jing)(jing)硅(gui)(gui)(gui)(gui)(gui)和多晶(jing)(jing)硅(gui)(gui)(gui)(gui)(gui)也发(fa)(fa)挥(hui)着巨大的(de)效果。要使太(tai)阳(yang)能发(fa)(fa)电(dian)(dian)(dian)具(ju)有较大的(de)市场,被(bei)广大的(de)消费者承受,就(jiu)必须进步(bu)太(tai)阳(yang)电(dian)(dian)(dian)池(chi)的(de)光电(dian)(dian)(dian)转换功率,降低出产本钱。从世(shi)界(jie)太(tai)阳(yang)电(dian)(dian)(dian)池(chi)的(de)发(fa)(fa)展过(guo)程能够看出其发(fa)(fa)展趋势为单晶(jing)(jing)硅(gui)(gui)(gui)(gui)(gui)、多晶(jing)(jing)硅(gui)(gui)(gui)(gui)(gui)、带(dai)状硅(gui)(gui)(gui)(gui)(gui)、薄(bo)膜(mo)资料(liao)(包含微(wei)晶(jing)(jing)硅(gui)(gui)(gui)(gui)(gui)基薄(bo)膜(mo)、化合物基薄(bo)膜(mo)及染料(liao)薄(bo)膜(mo))。
    多(duo)晶(jing)(jing)硅和多(duo)晶(jing)(jing)硅的(de)(de)区(qu)别是,当熔融的(de)(de)单(dan)质(zhi)(zhi)硅凝结时,硅原(yuan)子(zi)以金刚石晶(jing)(jing)格排(pai)列成(cheng)(cheng)许多(duo)晶(jing)(jing)核(he),假(jia)如(ru)这(zhei)些(xie)晶(jing)(jing)核(he)长成(cheng)(cheng)晶(jing)(jing)面(mian)取向(xiang)相同(tong)的(de)(de)晶(jing)(jing)粒,则构(gou)成(cheng)(cheng)单(dan)晶(jing)(jing)硅。假(jia)如(ru)这(zhei)些(xie)晶(jing)(jing)核(he)长成(cheng)(cheng)晶(jing)(jing)面(mian)取向(xiang)不同(tong)的(de)(de)晶(jing)(jing)粒,则构(gou)成(cheng)(cheng)多(duo)晶(jing)(jing)硅。多(duo)晶(jing)(jing)硅与单(dan)晶(jing)(jing)硅的(de)(de)差异首要表现在物理性(xing)质(zhi)(zhi)方(fang)面(mian)。例如(ru)在力学性(xing)质(zhi)(zhi)、电学性(xing)质(zhi)(zhi)等方(fang)面(mian),多(duo)晶(jing)(jing)硅均不如(ru)单(dan)晶(jing)(jing)硅。多(duo)晶(jing)(jing)硅可作为拉制单(dan)晶(jing)(jing)硅的(de)(de)原(yuan)料(liao)

    冶金级(ji)硅(gui)(gui)(gui)的(de)(de)(de)(de)提(ti)炼并(bing)不难(nan)。它的(de)(de)(de)(de)制备首要(yao)是在电弧(hu)炉中(zhong)用碳复原(yuan)(yuan)石(shi)(shi)英(ying)砂(sha)而(er)成(cheng)。这样被复原(yuan)(yuan)出来的(de)(de)(de)(de)硅(gui)(gui)(gui)的(de)(de)(de)(de)纯(chun)度(du)约98-99%,但半导体工(gong)(gong)业用硅(gui)(gui)(gui)还必须进行高(gao)(gao)度(du)提(ti)纯(chun)(电子(zi)级(ji)多晶(jing)硅(gui)(gui)(gui)纯(chun)度(du)要(yao)求11N,太阳(yang)能(neng)电池级(ji)只要(yao)求6N)。而(er)在提(ti)纯(chun)过(guo)(guo)程(cheng)中(zhong),有一(yi)项“三氯(lv)氢硅(gui)(gui)(gui)复原(yuan)(yuan)法(西(xi)门子(zi)法)”的(de)(de)(de)(de)关键技(ji)能(neng)我国(guo)还没有掌握,因为(wei)没有这项技(ji)能(neng),我国(guo)在提(ti)炼过(guo)(guo)程(cheng)中(zhong)70%以上的(de)(de)(de)(de)多晶(jing)硅(gui)(gui)(gui)都经(jing)过(guo)(guo)排放(fang)了,不只提(ti)炼本(ben)钱高(gao)(gao),并(bing)且(qie)环境污染十分严(yan)峻。我国(guo)每年都从(cong)石(shi)(shi)英(ying)石(shi)(shi)中(zhong)提(ti)取很多的(de)(de)(de)(de)工(gong)(gong)业硅(gui)(gui)(gui),以1美元(yuan)/公斤(jin)的(de)(de)(de)(de)价(jia)格出口到德国(guo)、美国(guo)和(he)日本(ben)等国(guo),而(er)这些把工(gong)(gong)业硅(gui)(gui)(gui)加工(gong)(gong)成(cheng)高(gao)(gao)纯(chun)度(du)的(de)(de)(de)(de)晶(jing)体硅(gui)(gui)(gui)资(zi)料,以46-80美元(yuan)/公斤(jin)的(de)(de)(de)(de)价(jia)格卖给我国(guo)的(de)(de)(de)(de)太阳(yang)能(neng)企业。

    得(de)到高纯度(du)的多晶(jing)硅后(hou),还(hai)要在单(dan)晶(jing)炉中熔炼(lian)成(cheng)(cheng)单(dan)晶(jing)硅,今后(hou)切(qie)片后(hou)供集成(cheng)(cheng)电路制作等用。能(neng)够用于二管级、整流(liu)器材级、电路级以(yi)及(ji)太阳(yang)能(neng)电池级单(dan)晶(jing)产(chan)品(pin)的出(chu)产(chan)和深加工制作,其后(hou)续产(chan)品(pin)集成(cheng)(cheng)电路和半(ban)导体(ti)别离(li)器材已广泛应(ying)用于各个领(ling)域,在军事电子设备中也(ye)占有重要位置。