A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing magnesium oxysulfate building material by using boric sludge
The invention particularly relates to a method for preparing a magnesium oxysulfate building material by using boric sludge. The method comprises the following steps: pretreating the boric sludge; boric sludge acidification pretreatment: adding a sulfuric acid solution into boric sludge, and stirring for reaction to obtain a magnesium sulfate mixture; preparing the magnesium oxysulfate building material: uniformly stirring light calcined magnesia, iron tailings and fly ash, adding a modifier, a curing agent and the magnesium sulfate mixture in the step 2, uniformly stirring, and finally pouring into a mold for molding and curing to obtain the magnesium oxysulfate building material. According to the method for preparing the building material by using the boric sludge, the boric sludge, the waste sulfuric acid, the iron tailings, the coal ash and other industrial wastes are utilized to prepare the magnesium oxysulfate cement, so that the production cost of the magnesium oxysulfate cement is reduced, and the utilization value of the industrial wastes is developed.
本发明具体涉及一种利用硼泥制备硫氧镁建筑材料的方法，该方法包括步骤：硼泥的预处理；硼泥酸化预处理：将硫酸溶液加入到硼泥中，搅拌反应，得到硫酸镁混合物；硫氧镁建筑材料的制备：将轻烧氧化镁、铁尾矿、粉煤灰搅拌均匀，再加入改性剂、固化剂、步骤二中的硫酸镁混合物，搅拌均匀，最后倒入模具中成型，养护，得硫氧镁建筑材料。本发明的利用硼泥制备建筑材料的方法，利用硼泥、废硫酸、铁尾矿及粉煤灰等工业废弃物制备硫氧镁水泥，以降低硫氧镁水泥的生产成本、开发工业废弃物的利用价值。
Method for preparing magnesium oxysulfate building material by using boric sludge
The invention particularly relates to a method for preparing a magnesium oxysulfate building material by using boric sludge. The method comprises the following steps: pretreating the boric sludge; boric sludge acidification pretreatment: adding a sulfuric acid solution into boric sludge, and stirring for reaction to obtain a magnesium sulfate mixture; preparing the magnesium oxysulfate building material: uniformly stirring light calcined magnesia, iron tailings and fly ash, adding a modifier, a curing agent and the magnesium sulfate mixture in the step 2, uniformly stirring, and finally pouring into a mold for molding and curing to obtain the magnesium oxysulfate building material. According to the method for preparing the building material by using the boric sludge, the boric sludge, the waste sulfuric acid, the iron tailings, the coal ash and other industrial wastes are utilized to prepare the magnesium oxysulfate cement, so that the production cost of the magnesium oxysulfate cement is reduced, and the utilization value of the industrial wastes is developed.
本发明具体涉及一种利用硼泥制备硫氧镁建筑材料的方法，该方法包括步骤：硼泥的预处理；硼泥酸化预处理：将硫酸溶液加入到硼泥中，搅拌反应，得到硫酸镁混合物；硫氧镁建筑材料的制备：将轻烧氧化镁、铁尾矿、粉煤灰搅拌均匀，再加入改性剂、固化剂、步骤二中的硫酸镁混合物，搅拌均匀，最后倒入模具中成型，养护，得硫氧镁建筑材料。本发明的利用硼泥制备建筑材料的方法，利用硼泥、废硫酸、铁尾矿及粉煤灰等工业废弃物制备硫氧镁水泥，以降低硫氧镁水泥的生产成本、开发工业废弃物的利用价值。
Method for preparing magnesium oxysulfate building material by using boric sludge
一种利用硼泥制备硫氧镁建筑材料的方法
ZHANG ZHIYUAN (author) / SONG ZHIYUAN (author) / ZHANG YANG (author)
2021-11-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2015
| European Patent Office | 2022