Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing magnesium oxychloride cement product by acid leaching of boric sludge
The invention discloses a method for preparing a magnesium oxychloride cement product by acid leaching of boric sludge, and belongs to the technical field of comprehensive utilization of industrial solid wastes. The method comprises the following steps: drying, grinding and sieving boric sludge to obtain pretreated boric sludge; adding the pretreated boric sludge into hydrochloric acid at room temperature, and soaking to obtain a boric sludge acid leaching substance; and mixing the boric sludge acid leaching substance, light-burned magnesia powder and water to obtain low-proportion magnesium oxychloride cement paste, demolding, and curing to obtain the magnesium oxychloride cement product. According to the method disclosed by the invention, resource utilization of the boric sludge is realized, the problem of accumulation of the boric sludge is solved, the problem of high energy consumption caused by means of heating, calcining and the like required for treating the boric sludge at the present stage is reduced, and no new solid waste is generated. Meanwhile, after the low-proportion magnesium oxychloride cement product is prepared, the consumption of the light-burned magnesium powder is reduced, and the research on the low-proportion magnesium oxychloride cement product is promoted.
本发明公开了一种将硼泥酸浸制备氯氧镁水泥制品的方法，属于工业固体废弃物的综合利用技术领域。所述方法包括以下步骤：将硼泥干燥，研磨、过筛，得到预处理硼泥；室温下，在盐酸中加入所述预处理硼泥，浸泡，得到硼泥酸浸物；将所述硼泥酸浸物、轻烧镁粉与水混合，得到低配比氯氧镁水泥浆体，脱模，养护，得到氯氧镁水泥制品。本发明的方法实现了硼泥的资源化利用，解决了硼泥的堆积问题，减少了现阶段处理硼泥所需的升温、煅烧等手段所带来的高能耗问题，而且又不产生新的固废。同时制备成低配比氯氧镁水泥制品后，减少了轻烧镁粉的消耗，推动了低配比氯氧镁水泥制品的研究。
Method for preparing magnesium oxychloride cement product by acid leaching of boric sludge
The invention discloses a method for preparing a magnesium oxychloride cement product by acid leaching of boric sludge, and belongs to the technical field of comprehensive utilization of industrial solid wastes. The method comprises the following steps: drying, grinding and sieving boric sludge to obtain pretreated boric sludge; adding the pretreated boric sludge into hydrochloric acid at room temperature, and soaking to obtain a boric sludge acid leaching substance; and mixing the boric sludge acid leaching substance, light-burned magnesia powder and water to obtain low-proportion magnesium oxychloride cement paste, demolding, and curing to obtain the magnesium oxychloride cement product. According to the method disclosed by the invention, resource utilization of the boric sludge is realized, the problem of accumulation of the boric sludge is solved, the problem of high energy consumption caused by means of heating, calcining and the like required for treating the boric sludge at the present stage is reduced, and no new solid waste is generated. Meanwhile, after the low-proportion magnesium oxychloride cement product is prepared, the consumption of the light-burned magnesium powder is reduced, and the research on the low-proportion magnesium oxychloride cement product is promoted.
本发明公开了一种将硼泥酸浸制备氯氧镁水泥制品的方法，属于工业固体废弃物的综合利用技术领域。所述方法包括以下步骤：将硼泥干燥，研磨、过筛，得到预处理硼泥；室温下，在盐酸中加入所述预处理硼泥，浸泡，得到硼泥酸浸物；将所述硼泥酸浸物、轻烧镁粉与水混合，得到低配比氯氧镁水泥浆体，脱模，养护，得到氯氧镁水泥制品。本发明的方法实现了硼泥的资源化利用，解决了硼泥的堆积问题，减少了现阶段处理硼泥所需的升温、煅烧等手段所带来的高能耗问题，而且又不产生新的固废。同时制备成低配比氯氧镁水泥制品后，减少了轻烧镁粉的消耗，推动了低配比氯氧镁水泥制品的研究。
Method for preparing magnesium oxychloride cement product by acid leaching of boric sludge
一种将硼泥酸浸制备氯氧镁水泥制品的方法
YANG MEI (Autor:in) / ZHANG MINGZHE (Autor:in) / SHEN HUILING (Autor:in) / CHEN HAO (Autor:in) / WANG DAFENG (Autor:in) / LYU GUANGYANG (Autor:in) / YUAN XINYU (Autor:in) / CHAO DAIDAI (Autor:in)
22.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2021
Magnesium oxychloride cement castable and preparing method thereof
| Europäisches Patentamt | 2016