CN108249670A - 一种酸性蚀刻液体处理酸液及回收铜的工艺 - Google Patents
一种酸性蚀刻液体处理酸液及回收铜的工艺 Download PDFInfo
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000002253 acid Substances 0.000 title claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 26
- 239000010949 copper Substances 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 title claims abstract description 25
- 238000004064 recycling Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 16
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 21
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
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- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 5
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- 229920001155 polypropylene Polymers 0.000 claims abstract description 4
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- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 claims abstract description 4
- 239000010865 sewage Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
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- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
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- 238000004519 manufacturing process Methods 0.000 claims description 3
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- 231100000614 poison Toxicity 0.000 claims description 3
- 230000007096 poisonous effect Effects 0.000 claims description 3
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Abstract
本发明公开了一种酸性蚀刻液体处理酸液及回收铜的工艺,包括如下步骤:废水引入到废水收集池,进行预处理,将废水加入耐腐蚀蒸馏装置,设置石墨改性聚丙烯降膜吸收器和水喷射真空机,采用三级串联,实现氯化氢的吸收,经过处理的废水进行一级反渗透,二级反渗透,三级反渗透,补充到电解系统中,回收电解铜,加入碱石灰,将分离得到的滤渣在600温度下焙烧9小时,将上述物料加入硫酸溶液并加热溶解,加热10分钟后过滤,冷却液结晶,将铜泥加入电解循环液体,得到硫酸铜溶液,二次电解,产生阴极铜,本发明一种酸性蚀刻液体处理酸液及回收铜的工艺,工艺设计紧凑合理,能耗低,并且实现了铜产品的回收。
Description
技术领域
本发明涉及铜金属回收技术领域,特别是涉及一种酸性蚀刻液体处理酸液及回收铜的工艺。
背景技术
随着人民生活水平的不断提高,废旧家电的量也越来越大,内部电路板的清洗一般采用酸性液体,废旧家电回收一般采用破碎的方法,粉碎后分离得到铜和其他金属混合物,同时,金属表面处理中,含有大量的酸液,这些液体直接排出,会对环境造成严重危害,为此,本发明提供了一种酸性蚀刻液体处理酸液及回收铜的工艺,工艺流程紧凑,设计合理。
发明内容
本发明主要解决的技术问题是提供一种酸性蚀刻液体处理酸液及回收铜的工艺,能够有效实现对废水的安全处理,污水实现达标排放,同时,污水处理后能够进行密封循环使用,提高了经济效益,并且实现了铜产品的回收,所述的污水处理系统技术成熟可靠,设备稳定,并且经济合理。
所述的一种酸性蚀刻液体处理酸液及回收铜的工艺,包括如下步骤:
第一步:把废水引入到废水收集池,然后先通过粗栅栏,细栅栏过滤,把块状颗粒和浮渣去除;
一种优选技术放案,在所述的废水收集池设置了两个紫外线杀菌器,杀菌器选用波长为254mm,杀死废水中的细菌;
第二步:对废水中的油脂进行预处理,采用乳油吸收机,对油脂进行吸附;
第三步:将废水加入耐腐蚀蒸馏装置,然后进行加热,回收蒸馏烟气;
第四步:设置石墨改性聚丙烯降膜吸收器和水喷射真空机,采用三级串联,实现氯化氢的吸收,剩余的氯化氢尾气进入填料吸收塔,达到100%完全吸收,获得31%盐酸;
第五步:经过处理的废水进行一级反渗透,调节压力,使得废水浓缩,从一级废水中进入到二级反渗透设备中,同样浓缩,将二级浓缩液体送入三级反渗透,浓缩后的高浓度,补充到电解系统中,进行第一次电解,回收电解铜;
第六步:回收电解铜,阳极铜板作为阳极,纯铜薄片作为阴极,置于硫酸和硫酸铜的混合液体中,持续通入电流进行电解,控制电解温度60摄氏度到70摄氏度,电解得到阴极电解铜;
第七步:加入碱石灰,并加入高分子絮凝剂,搅拌30-60分钟,然后进行沉淀分离;
第八步:将分离得到的滤渣在600温度下焙烧9小时,将上述物料加入硫酸溶液并加热溶解,加热10分钟后过滤,冷却液结晶;
第九步:将第八步中的铜泥加入电解循环液体,得到硫酸铜溶液,二次电解,产生阴极铜;
第十步:经过第七步处理的废水,引入到调节池,在调节池内填充设置了石英砂,使得污水中残留细微杂质进一步净化,净化后的水进入到活性炭过滤器,活性炭过滤器能够去除污水中的色度,异味等有毒有害物质,并对后续反渗透处理做好预处理;
第十一步:设置保安过滤器,第十步中的水通过保安过滤器,二次净化;
第十二步:经过二次净化的水,引入到清水池,进行回收利用,产生的污水通过管道进入到消毒池;
第十三步:所述的清水池,可以生产循环回用,也可以用于设备反冲用水,其余可以达标排放。
本发明的有益效果是:本发明一种酸性蚀刻液体处理酸液及回收铜的工艺,工艺设计紧凑合理,能耗低,并且实现了铜产品的回收。
具体实施方式
下面对本发明的较佳实施例进行详细阐述,以使本发明的优点和特征能更易于被本领域技术人员理解,从而对本发明的保护范围做出更为清楚明确的界定。
所述的一种酸性蚀刻液体处理酸液及回收铜的工艺,包括如下步骤:
第一步:把废水引入到废水收集池,然后先通过粗栅栏,细栅栏过滤,把块状颗粒和浮渣去除;
一种优选技术放案,在所述的废水收集池设置了两个紫外线杀菌器,杀菌器选用波长为254mm,杀死废水中的细菌;
第二步:对废水中的油脂进行预处理,采用乳油吸收机,对油脂进行吸附;
第三步:将废水加入耐腐蚀蒸馏装置,然后进行加热,回收蒸馏烟气;
第四步:设置石墨改性聚丙烯降膜吸收器和水喷射真空机,采用三级串联,实现氯化氢的吸收,剩余的氯化氢尾气进入填料吸收塔,达到100%完全吸收,获得31%盐酸;
第五步:经过处理的废水进行一级反渗透,调节压力,使得废水浓缩,从一级废水中进入到二级反渗透设备中,同样浓缩,将二级浓缩液体送入三级反渗透,浓缩后的高浓度,补充到电解系统中,进行第一次电解,回收电解铜;
第六步:回收电解铜,阳极铜板作为阳极,纯铜薄片作为阴极,置于硫酸和硫酸铜的混合液体中,持续通入电流进行电解,控制电解温度60摄氏度到70摄氏度,电解得到阴极电解铜;
第七步:加入碱石灰,并加入高分子絮凝剂,搅拌30-60分钟,然后进行沉淀分离;
第八步:将分离得到的滤渣在600温度下焙烧9小时,将上述物料加入硫酸溶液并加热溶解,加热10分钟后过滤,冷却液结晶;
第九步:将第八步中的铜泥加入电解循环液体,得到硫酸铜溶液,二次电解,产生阴极铜;
第十步:经过第七步处理的废水,引入到调节池,在调节池内填充设置了石英砂,使得污水中残留细微杂质进一步净化,净化后的水进入到活性炭过滤器,活性炭过滤器能够去除污水中的色度,异味等有毒有害物质,并对后续反渗透处理做好预处理;
第十一步:设置保安过滤器,第十步中的水通过保安过滤器,二次净化;
第十二步:经过二次净化的水,引入到清水池,进行回收利用,产生的污水通过管道进入到消毒池;
第十三步:所述的清水池,可以生产循环回用,也可以用于设备反冲用水,其余可以达标排放。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (3)
1.一种酸性蚀刻液体处理酸液及回收铜的工艺,其特征在于,包括如下步骤:
第一步:把废水引入到废水收集池,然后先通过粗栅栏,细栅栏过滤,把块状颗粒和浮渣去除;
第二步:对废水中的油脂进行预处理,采用乳油吸收机,对油脂进行吸附;
第三步:将废水加入耐腐蚀蒸馏装置,然后进行加热,回收蒸馏烟气;
第四步:设置石墨改性聚丙烯降膜吸收器和水喷射真空机,采用三级串联,实现氯化氢的吸收,剩余的氯化氢尾气进入填料吸收塔,达到100%完全吸收,获得31%盐酸;
第五步:经过处理的废水进行一级反渗透,调节压力,使得废水浓缩,从一级废水中进入到二级反渗透设备中,同样浓缩,将二级浓缩液体送入三级反渗透,浓缩后的高浓度,补充到电解系统中,进行第一次电解,回收电解铜;
第六步:回收电解铜,阳极铜板作为阳极,纯铜薄片作为阴极,置于硫酸和硫酸铜的混合液体中,持续通入电流进行电解,控制电解温度60摄氏度到70摄氏度,电解得到阴极电解铜;
第七步:加入碱石灰;
第八步:将分离得到的滤渣在600温度下焙烧9小时,将上述物料加入硫酸溶液并加热溶解,加热10分钟后过滤,冷却液结晶;
第九步:将第八步中的铜泥加入电解循环液体,得到硫酸铜溶液,二次电解,产生阴极铜;
第十步:经过第七步处理的废水,引入到调节池,在调节池内填充设置了石英砂,使得污水中残留细微杂质进一步净化,净化后的水进入到活性炭过滤器,活性炭过滤器能够去除污水中的色度,异味等有毒有害物质,并对后续反渗透处理做好预处理;
第十一步:设置保安过滤器,第十步中的水通过保安过滤器,二次净化;
第十二步:经过二次净化的水,引入到清水池,进行回收利用,产生的污水通过管道进入到消毒池;
第十三步:所述的清水池,可以生产循环回用,也可以用于设备反冲用水,其余可以达标排放。
2.根据权利要求1所述的一种酸性蚀刻液体处理酸液及回收铜的工艺,其特征在于,所述的第一步中,在废水收集池设置了两个紫外线杀菌器,杀菌器选用波长为254mm。
3.根据权利要求1所述的一种酸性蚀刻液体处理酸液及回收铜的工艺,其特征在于,所述的第七步中,加入高分子絮凝剂,搅拌30-60分钟,然后进行沉淀分离。
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