Preparation of calcium carbonate with microstructure and nanostructure from carbide slag for CO_(2) sequestration by using recyclable ammonium chloride
作者机构：Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource RecycleSouthwest University of Science and TechnologyMianyang621010China Sichuan Engineering Lab of Non-metallic Mineral Powder Modification and High-value UtilizationMianyang621010China School of Architecture and Civil EngineeringChengdu UniversityChengdu610106China
出 版 物：《Particuology》 (颗粒学报（英文版）)
年 卷 期：2024年第90卷第7期
页 面：1-9页
核心收录：
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术]
基 金：Sichuan Science and Technology Program(grant Nos.2023NSFSC0348,2023JDRC0070) Sichuan City Solid Waste Energy and Building Materials Conversion Technology Engineering Research Center,Chengdu University(grant Nos.GF2022ZD002,GF2022ZC002)
主 题：Carbide slag Ammonium chloride Cyclic utilization Micro and nano structure Product control
摘 要：Based on the composition characteristics of carbide slag and the application of polyvinyl chloride,a method of preparing calcium carbonate with microstructure and nanostructure by using carbide slag as a raw material and ammonium chloride as a leaching agent was *** factors for the preparation of calcium carbonate and the effects of different conditions on the crystal phase,grain size,and morphology of calcium carbonate were systematically *** results showed that the nanosized calcium carbonate was prepared at 60 mL/min,25°C,no additional ammonia,and 60 *** product of spherical vaterite was in accordance with the relevant standards for the industrial precipitation of calcium ***,the reuse of carbonation filtrate was *** crystal phase,grain size,and morphology of the carbonation product could be controlled by adjusting the reaction *** manuscript provided a new idea for resource utilization of carbide slag and preparing nanocalcium carbonate.
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