Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing calcium carbonate seed crystal by carbonating steel slag through liquid method
The invention provides a method for preparing calcium carbonate seed crystal by carbonating steel slag through a liquid method, and belongs to the field of resource utilization of waste building materials. According to the method, the calcium carbonate seed crystal is prepared by directly carbonating the steel slag through a liquid method, and the proportional relation of four different calcium carbonate crystal forms in a product is regulated and controlled by controlling variables such as the variety of a crystal form control agent, the concentration, the temperature, the pressure intensity and the carbonation time of the crystal form control agent in the carbonation process. The performance of the carbonated steel slag product is improved by doping the carbonated steel slag product into the steel slag product. The calcium carbonate seed crystal can effectively induce generation of calcite, aragonite and vaterite in the process of preparing the building material product through carbonation maintenance, and the strength and carbon sequestration amount of the building material product through carbonation maintenance are improved. According to the method, the steel slag with different crystal form proportions is doped into the steel slag raw material for compression molding and semi-dry carbonation, so that the physical property and the carbon sequestration rate of the steel slag product are improved, and high-value utilization of treating waste with waste is realized aiming at alkaline solid waste and carbon dioxide.
本发明提供一种液体法碳酸化钢渣制备碳酸钙晶种的方法，属于废弃物建材资源化利用领域。所述方法为通过液体法直接碳酸化钢渣制备碳酸钙晶种，通过控制碳酸化过程中的晶型控制剂的种类、晶型控制剂的浓度、温度、压强、碳酸化时间等变量，调控产物中四种不同碳酸钙晶型的比例关系，并将其掺入钢渣制品改善碳酸化钢渣制品性能。碳酸钙晶种在碳酸化养护制备建材制品过程中可以有效诱导方解石、文石和球霰石的生成，提升碳酸化养护建材制品强度和固碳量。本发明将不同晶型占比的钢渣掺入钢渣原材料压制成型进行半干法碳酸化，从而提升钢渣制品物理性能和固碳率，针对碱性固体废弃物和二氧化碳实现了以废治废的高值化利用。
Method for preparing calcium carbonate seed crystal by carbonating steel slag through liquid method
The invention provides a method for preparing calcium carbonate seed crystal by carbonating steel slag through a liquid method, and belongs to the field of resource utilization of waste building materials. According to the method, the calcium carbonate seed crystal is prepared by directly carbonating the steel slag through a liquid method, and the proportional relation of four different calcium carbonate crystal forms in a product is regulated and controlled by controlling variables such as the variety of a crystal form control agent, the concentration, the temperature, the pressure intensity and the carbonation time of the crystal form control agent in the carbonation process. The performance of the carbonated steel slag product is improved by doping the carbonated steel slag product into the steel slag product. The calcium carbonate seed crystal can effectively induce generation of calcite, aragonite and vaterite in the process of preparing the building material product through carbonation maintenance, and the strength and carbon sequestration amount of the building material product through carbonation maintenance are improved. According to the method, the steel slag with different crystal form proportions is doped into the steel slag raw material for compression molding and semi-dry carbonation, so that the physical property and the carbon sequestration rate of the steel slag product are improved, and high-value utilization of treating waste with waste is realized aiming at alkaline solid waste and carbon dioxide.
本发明提供一种液体法碳酸化钢渣制备碳酸钙晶种的方法，属于废弃物建材资源化利用领域。所述方法为通过液体法直接碳酸化钢渣制备碳酸钙晶种，通过控制碳酸化过程中的晶型控制剂的种类、晶型控制剂的浓度、温度、压强、碳酸化时间等变量，调控产物中四种不同碳酸钙晶型的比例关系，并将其掺入钢渣制品改善碳酸化钢渣制品性能。碳酸钙晶种在碳酸化养护制备建材制品过程中可以有效诱导方解石、文石和球霰石的生成，提升碳酸化养护建材制品强度和固碳量。本发明将不同晶型占比的钢渣掺入钢渣原材料压制成型进行半干法碳酸化，从而提升钢渣制品物理性能和固碳率，针对碱性固体废弃物和二氧化碳实现了以废治废的高值化利用。
Method for preparing calcium carbonate seed crystal by carbonating steel slag through liquid method
一种液体法碳酸化钢渣制备碳酸钙晶种的方法
CHANG JUN (Autor:in) / DING XIAOLEI (Autor:in)
17.09.2024
Patent
Elektronische Ressource
Chinesisch
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