A Green Approach to Preparing Vaterite CaCO 3 for Clean Utilization of Steamed Ammonia Liquid Waste and CO 2 Mineralization

Xuewen Song, Yuxin Tuo, Dan Li, Xinrui Hua, Ruomeng Wang, Jiwei Xue, Renhe Yang, Xianzhong Bu and Xianping Luo ()
Additional contact information
Xuewen Song: School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Yuxin Tuo: School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Dan Li: School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Xinrui Hua: School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Ruomeng Wang: School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Jiwei Xue: School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Renhe Yang: State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing Building Materials Academy of Sciences Research, Beijing 100041, China
Xianzhong Bu: School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Xianping Luo: School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China

Sustainability, 2023, vol. 15, issue 17, 1-20

Abstract: In the salt lake industry, large amounts of steamed ammonia liquid waste are discharged as byproducts. The conversion of the residues into high value-added vaterite-phase calcium carbonate products for industrial applications is highly desirable. In this research, the feasibility of preparing vaterite-phase CaCO 3 in different CaCl 2 -CO 2 -MOH-H 2 O systems using steamed ammonia liquid waste was studied in the absence of additives. The effects of initial CaCl 2 concentration, stirring speed and CO 2 flow rate on the composition of the CaCO 3 crystal phase were investigated. The contents of vaterite were researched by the use of steamed ammonia liquid waste as a calcium source and pure calcium chloride as a contrast. The influence of the concentration of C NH 3 ·H 2 O /C Ca 2+ on the carbonation ratio and crystal phase composition was studied. The reaction conditions on the content, particle size and morphology of vaterite influence were discussed. It was observed that single vaterite-phase CaCO 3 was favored in the CaCl 2 -CO 2 -NH 4 OH-H 2 O system. Additionally, the impurity ions in steamed ammonia liquid waste play a key role in the nucleation and crystallization of vaterite, which could affect the formation of single-phase vaterite. The obtained results provided a novel method for the preparation of single vaterite particles with the utilization of CO 2 and offered a selective method for the extensive utilization of steamed ammonia liquid waste.

Keywords: calcium carbonate; vaterite; CO 2; steamed ammonia liquid waste (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/17/13275/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/17/13275/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:17:p:13275-:d:1232884

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().