{"title":"通过调节六水铝酸三钙的电双层从铝酸钠溶液中去除有机物的简易工艺","authors":"","doi":"10.1016/S1003-6326(24)66546-5","DOIUrl":null,"url":null,"abstract":"<div><p>The economical removal of organics from sodium aluminate solutions has been required for decades. Based on security filtration using tricalcium aluminate hexahydrate (TCA) as a filter aid, a novel short process to eliminate impurity particles and remove organics simultaneously was presented. Ultrafine TCA samples with poor crystallization, high TCA content, high surface free energy, and large lattice distortion were prepared in the concentrated sodium aluminate solution. The zeta potential of the TCA binary mixture in alkaline solutions was linearly depended on the TCA content, suggesting the additivity of the zeta potential in the binary mixture. The variation in the electrical double layer of the TCA binary mixture was demonstrated in the alkaline solution. Furthermore, the ultrafine TCA exhibited a high adsorption capacity for organics with long alkyl chains and high relative-molecular-mass. The adsorption capacity of 69.69 mg/g organic carbon for sodium humate was achieved, whereas the digestion at a high temperature remarkably reduced the adsorption capacity of TCA.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.7000,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632624665465/pdf?md5=fb48fbe7772bbabb8334a701dfa1bccf&pid=1-s2.0-S1003632624665465-main.pdf","citationCount":"0","resultStr":"{\"title\":\"A short process for organics removal from sodium aluminate solution by regulating electrical double layer of tricalcium aluminate hexahydrate\",\"authors\":\"\",\"doi\":\"10.1016/S1003-6326(24)66546-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The economical removal of organics from sodium aluminate solutions has been required for decades. Based on security filtration using tricalcium aluminate hexahydrate (TCA) as a filter aid, a novel short process to eliminate impurity particles and remove organics simultaneously was presented. Ultrafine TCA samples with poor crystallization, high TCA content, high surface free energy, and large lattice distortion were prepared in the concentrated sodium aluminate solution. The zeta potential of the TCA binary mixture in alkaline solutions was linearly depended on the TCA content, suggesting the additivity of the zeta potential in the binary mixture. The variation in the electrical double layer of the TCA binary mixture was demonstrated in the alkaline solution. Furthermore, the ultrafine TCA exhibited a high adsorption capacity for organics with long alkyl chains and high relative-molecular-mass. The adsorption capacity of 69.69 mg/g organic carbon for sodium humate was achieved, whereas the digestion at a high temperature remarkably reduced the adsorption capacity of TCA.</p></div>\",\"PeriodicalId\":23191,\"journal\":{\"name\":\"Transactions of Nonferrous Metals Society of China\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2024-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1003632624665465/pdf?md5=fb48fbe7772bbabb8334a701dfa1bccf&pid=1-s2.0-S1003632624665465-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Transactions of Nonferrous Metals Society of China\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1003632624665465\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions of Nonferrous Metals Society of China","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1003632624665465","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
A short process for organics removal from sodium aluminate solution by regulating electrical double layer of tricalcium aluminate hexahydrate
The economical removal of organics from sodium aluminate solutions has been required for decades. Based on security filtration using tricalcium aluminate hexahydrate (TCA) as a filter aid, a novel short process to eliminate impurity particles and remove organics simultaneously was presented. Ultrafine TCA samples with poor crystallization, high TCA content, high surface free energy, and large lattice distortion were prepared in the concentrated sodium aluminate solution. The zeta potential of the TCA binary mixture in alkaline solutions was linearly depended on the TCA content, suggesting the additivity of the zeta potential in the binary mixture. The variation in the electrical double layer of the TCA binary mixture was demonstrated in the alkaline solution. Furthermore, the ultrafine TCA exhibited a high adsorption capacity for organics with long alkyl chains and high relative-molecular-mass. The adsorption capacity of 69.69 mg/g organic carbon for sodium humate was achieved, whereas the digestion at a high temperature remarkably reduced the adsorption capacity of TCA.
期刊介绍:
The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.