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A platform for research: civil engineering, architecture and urbanism
Comprehensive utilization method of salty mud and salt gypsum
The invention belongs to the technical field of waste recycling, and particularly discloses a comprehensive utilization method of salty mud and salt gypsum, which comprises the following steps: adding salt gypsum, hydrochloric acid and mirabilite into water according to a certain proportion, stirring and reacting for 7-48 hours at normal temperature and normal pressure, filtering and washing a product, and calcining at high temperature to obtain beta-calcium sulfate hemihydrate. The product beta-calcium sulfate hemihydrate can be directly used as a raw material of building material gypsum, a new way of turning waste into wealth is opened up, and the method has great significance in sustainable development of enterprises.
本发明属于废弃物再利用技术领域，具体公开一种盐泥盐石膏综合利用方法，通过将盐石膏和盐酸、芒硝以一定的比例共同投入水中于常温常压下搅拌反应7~48h后产物进行过滤洗涤以后再于高温下煅烧得β‑半水硫酸钙，产物β‑半水硫酸钙可以直接用做建材石膏的原料进行使用，开辟了一条变废为宝的新途径，对企业的可持续发展具有重要意义。
Comprehensive utilization method of salty mud and salt gypsum
The invention belongs to the technical field of waste recycling, and particularly discloses a comprehensive utilization method of salty mud and salt gypsum, which comprises the following steps: adding salt gypsum, hydrochloric acid and mirabilite into water according to a certain proportion, stirring and reacting for 7-48 hours at normal temperature and normal pressure, filtering and washing a product, and calcining at high temperature to obtain beta-calcium sulfate hemihydrate. The product beta-calcium sulfate hemihydrate can be directly used as a raw material of building material gypsum, a new way of turning waste into wealth is opened up, and the method has great significance in sustainable development of enterprises.
本发明属于废弃物再利用技术领域，具体公开一种盐泥盐石膏综合利用方法，通过将盐石膏和盐酸、芒硝以一定的比例共同投入水中于常温常压下搅拌反应7~48h后产物进行过滤洗涤以后再于高温下煅烧得β‑半水硫酸钙，产物β‑半水硫酸钙可以直接用做建材石膏的原料进行使用，开辟了一条变废为宝的新途径，对企业的可持续发展具有重要意义。
Comprehensive utilization method of salty mud and salt gypsum
一种盐泥盐石膏综合利用方法
LIANG WUXING (author) / LI XINQI (author) / GUO YUPING (author) / SHI YONGFEI (author) / ZHANG JUNFEI (author) / LI JUNGANG (author) / YUAN HUANING (author) / BI WENFENG (author) / SHENG XIANTONG (author) / HAN JIE (author)
2022-01-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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