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Method for synergistically preparing ceramsite from arsenic alkali leaching residues and fly ash
The invention discloses a method for synergistically preparing ceramsite from arsenic alkali leaching residues and fly ash, and belongs to the technical field of solid waste treatment. Carrying out dry ball milling treatment on the arsenic alkali leaching residues and fly ash, and pelletizing with silicon dioxide, a binder, a carbonaceous reducing agent and water through a disc pelletizer to obtain a ceramsite raw material; the ceramsite raw material is dried and roasted to obtain ceramsite; according to the method, through the pyrometallurgy and roasting technology, harmful elements such as arsenic and antimony in the arsenic-alkali leaching residues are volatilized and recycled, residual alkali components are fully utilized and fixed, meanwhile, SiO2, Al2O3 and Fe2O3 components in the fly ash are recycled, and the obtained ceramsite product is excellent in performance and meets the application requirements of building materials.
本发明公开了一种砷碱浸出渣与粉煤灰协同制备陶粒的方法，属于固废处理技术领域。将砷碱浸出渣与粉煤灰通过干式球磨处理后，和二氧化硅、粘结剂、碳质还原剂及水通过圆盘造球机造球，得到陶粒生料；所述陶粒生料通过烘干和焙烧，得到陶粒；该方法通过火法冶炼协同焙烧技术，不但实现砷碱浸出渣中砷、锑等有害元素挥发回收，其而且残余碱成分得到充分利用和固定，同时使得粉煤灰中SiO2、Al2O3和Fe2O3等组分实现资源化利用，且所得陶粒产品性能优良，满足建筑材料应用要求。
Method for synergistically preparing ceramsite from arsenic alkali leaching residues and fly ash
The invention discloses a method for synergistically preparing ceramsite from arsenic alkali leaching residues and fly ash, and belongs to the technical field of solid waste treatment. Carrying out dry ball milling treatment on the arsenic alkali leaching residues and fly ash, and pelletizing with silicon dioxide, a binder, a carbonaceous reducing agent and water through a disc pelletizer to obtain a ceramsite raw material; the ceramsite raw material is dried and roasted to obtain ceramsite; according to the method, through the pyrometallurgy and roasting technology, harmful elements such as arsenic and antimony in the arsenic-alkali leaching residues are volatilized and recycled, residual alkali components are fully utilized and fixed, meanwhile, SiO2, Al2O3 and Fe2O3 components in the fly ash are recycled, and the obtained ceramsite product is excellent in performance and meets the application requirements of building materials.
本发明公开了一种砷碱浸出渣与粉煤灰协同制备陶粒的方法，属于固废处理技术领域。将砷碱浸出渣与粉煤灰通过干式球磨处理后，和二氧化硅、粘结剂、碳质还原剂及水通过圆盘造球机造球，得到陶粒生料；所述陶粒生料通过烘干和焙烧，得到陶粒；该方法通过火法冶炼协同焙烧技术，不但实现砷碱浸出渣中砷、锑等有害元素挥发回收，其而且残余碱成分得到充分利用和固定，同时使得粉煤灰中SiO2、Al2O3和Fe2O3等组分实现资源化利用，且所得陶粒产品性能优良，满足建筑材料应用要求。
Method for synergistically preparing ceramsite from arsenic alkali leaching residues and fly ash
一种砷碱浸出渣与粉煤灰协同制备陶粒的方法
HAN HAISHENG (author) / WANG YUFENG (author) / SUN WEI (author) / TIAN JIA (author) / LI JIALE (author) / SANG MENGCHAO (author) / ZHANG YINGFEI (author) / ZHANG LIFAN (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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