A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Waste-residue-reducing production process for polyaluminum chloride
The invention discloses a waste-residue-reducing production process for polyaluminum chloride, belonging to the technical field of polyaluminum chloride production. The production process mainly comprises the following steps: adding hydrochloric acid, water and activated bauxite into a first reaction tank to prepare liquid aluminum chloride, filtering the liquid aluminum chloride, feeding the filtered liquid aluminum chloride into a first polymerization reaction tank, adding water and calcium aluminate powder, carrying out a polymerization reaction to prepare liquid polyaluminum chloride, and recycling filter residues generated in preparation of the liquid polyaluminum chloride, preparing liquid polyaluminum chloride through a second reaction tank and a second polymerization reaction tank, drying and bagging the filtered liquid polyaluminum chloride, and carrying out water washing and filter pressing on the filter residues generated in the production process to prepare bricks. According to the waste-residue-reducing production process for polyaluminum chloride, aluminum chloride synthesis and polymerization are performed separately, the waste residues are recycled at the same time, dissolution of calcium aluminate powder can be improved, waste residue discharge and resource waste are reduced, generated filter residues are collected and made into building materials, and influence on the environment is reduced.
本发明公开了一种聚合氯化铝废渣减量化生产工艺，涉及聚合氯化铝生产技术领域，主要步骤包括向第一反应罐中加入盐酸、水和活性铝矾土，制备液体氯化铝，将液体氯化铝过滤后送入第一聚合反应罐，加入水和铝酸钙粉进行聚合反应，制得液体聚氯化铝，对制备液体聚氯化铝产生的滤渣进行回用，并经第二反应罐和第二聚合反应罐制备液体聚氯化铝，将过滤完成的液体聚氯化铝烘干装袋，生产过程中产生的滤渣经水洗压滤后制砖。该聚合氯化铝废渣减量化生产工艺，通过将氯化铝合成以及聚合进行分开反应，同时对废渣进行回用，可以提高铝酸钙粉的溶出，减少废渣排放和资源浪费，经产生的滤渣收集并将其制作为建材，降低对环境的影响。
Waste-residue-reducing production process for polyaluminum chloride
The invention discloses a waste-residue-reducing production process for polyaluminum chloride, belonging to the technical field of polyaluminum chloride production. The production process mainly comprises the following steps: adding hydrochloric acid, water and activated bauxite into a first reaction tank to prepare liquid aluminum chloride, filtering the liquid aluminum chloride, feeding the filtered liquid aluminum chloride into a first polymerization reaction tank, adding water and calcium aluminate powder, carrying out a polymerization reaction to prepare liquid polyaluminum chloride, and recycling filter residues generated in preparation of the liquid polyaluminum chloride, preparing liquid polyaluminum chloride through a second reaction tank and a second polymerization reaction tank, drying and bagging the filtered liquid polyaluminum chloride, and carrying out water washing and filter pressing on the filter residues generated in the production process to prepare bricks. According to the waste-residue-reducing production process for polyaluminum chloride, aluminum chloride synthesis and polymerization are performed separately, the waste residues are recycled at the same time, dissolution of calcium aluminate powder can be improved, waste residue discharge and resource waste are reduced, generated filter residues are collected and made into building materials, and influence on the environment is reduced.
本发明公开了一种聚合氯化铝废渣减量化生产工艺，涉及聚合氯化铝生产技术领域，主要步骤包括向第一反应罐中加入盐酸、水和活性铝矾土，制备液体氯化铝，将液体氯化铝过滤后送入第一聚合反应罐，加入水和铝酸钙粉进行聚合反应，制得液体聚氯化铝，对制备液体聚氯化铝产生的滤渣进行回用，并经第二反应罐和第二聚合反应罐制备液体聚氯化铝，将过滤完成的液体聚氯化铝烘干装袋，生产过程中产生的滤渣经水洗压滤后制砖。该聚合氯化铝废渣减量化生产工艺，通过将氯化铝合成以及聚合进行分开反应，同时对废渣进行回用，可以提高铝酸钙粉的溶出，减少废渣排放和资源浪费，经产生的滤渣收集并将其制作为建材，降低对环境的影响。
Waste-residue-reducing production process for polyaluminum chloride
聚合氯化铝废渣减量化生产工艺
LIU HONGLIANG (author)
2021-11-23
Patent
Electronic Resource
Chinese
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