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Biochemical impurity removal method for titanium gypsum
A biochemical impurity removal method for titanium gypsum comprises the following steps of: S1, reduction treatment: adding iron reducing bacteria into titanium gypsum, and reducing Fe < 3 + > in the titanium gypsum to magnetite to obtain a titanium gypsum matrix; S2, dehydration treatment: dehydrating the titanium gypsum matrix at normal temperature and normal pressure until the moisture content of the titanium gypsum matrix is less than 5%; and S3, magnetic separation treatment: carrying out magnetic separation on the dehydrated titanium gypsum to remove iron impurities. According to the biochemical impurity removal method for titanium gypsum, Fe (OH) 3 gel in titanium gypsum is removed, and the titanium gypsum subjected to impurity removal is pure white in color, low in viscosity and low in water absorption rate and can be reused as a high-quality gypsum-based building material.
一种钛石膏生化除杂的方法，上述方法包括如下步骤：S1还原处理：向钛石膏中添加铁还原细菌，将钛石膏中的Fe3+还原至磁铁矿，制得钛石膏基体；S2失水处理：钛石膏基体常温常压下失水至钛石膏基体中的含水率为5％以下；S3磁选处理：失水后的钛石膏经磁选除去铁杂质。本发明钛石膏生化除杂的方法去除了钛石膏中的Fe(OH)3凝胶，除杂后的钛石膏颜色洁白，粘度低，吸水率低，能作为优质的石膏基建筑材料进行再利用。
Biochemical impurity removal method for titanium gypsum
A biochemical impurity removal method for titanium gypsum comprises the following steps of: S1, reduction treatment: adding iron reducing bacteria into titanium gypsum, and reducing Fe < 3 + > in the titanium gypsum to magnetite to obtain a titanium gypsum matrix; S2, dehydration treatment: dehydrating the titanium gypsum matrix at normal temperature and normal pressure until the moisture content of the titanium gypsum matrix is less than 5%; and S3, magnetic separation treatment: carrying out magnetic separation on the dehydrated titanium gypsum to remove iron impurities. According to the biochemical impurity removal method for titanium gypsum, Fe (OH) 3 gel in titanium gypsum is removed, and the titanium gypsum subjected to impurity removal is pure white in color, low in viscosity and low in water absorption rate and can be reused as a high-quality gypsum-based building material.
一种钛石膏生化除杂的方法，上述方法包括如下步骤：S1还原处理：向钛石膏中添加铁还原细菌，将钛石膏中的Fe3+还原至磁铁矿，制得钛石膏基体；S2失水处理：钛石膏基体常温常压下失水至钛石膏基体中的含水率为5％以下；S3磁选处理：失水后的钛石膏经磁选除去铁杂质。本发明钛石膏生化除杂的方法去除了钛石膏中的Fe(OH)3凝胶，除杂后的钛石膏颜色洁白，粘度低，吸水率低，能作为优质的石膏基建筑材料进行再利用。
Biochemical impurity removal method for titanium gypsum
一种钛石膏生化除杂的方法
JIANG XUFENG (author)
2021-11-09
Patent
Electronic Resource
Chinese
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