绿色纳米碳酸钙生产关键技术与机理研究

doi:10.19964/j.issn.1006-4990.2024-0156

Abstract

Abstract:

The production process of preparing green nano calcium from calcium magnesium waste residue such as calcium carbide slag is simple，with few equipment and low investment.It belongs to the "short，flat and fast" project and new quality productivity project.The ion meters and pH meters were used to track and study the leaching reaction，and the relationship between calcium ion concentration，potential value，pH value and time changes during the leaching reaction process of fresh leaching solution and circulating mother liquor were compared.Fresh leaching solution had fast reaction speed，short time，and high leaching rate.The leaching reaction speed of the circulating mother liquor was slower，the time was longer，and the leaching rate was lower.Pre-carbonization was an extremely fast complex decomposition reaction process，with intermediate products in the form of colloids，accounting for about 20% of the total amount of calcium ions.The purpose was to provide crystal seeds for CO₂carbonization reaction.The ion meters and pH meters were used to track and study the CO₂ carbonization reaction process，it was found that the initial speed was slow，the gas-liquid equilibrium of CO₂ was the control step，and the ionization equilibrium of ammonia in the later stage was the control step.After stopping CO₂，the carbonization process did not immediately stop，and the calcium ion concentration and potential value continued to decrease，but the pH was slightly increased.This article laid the foundation for the industrialization of green nano calcium through in-depth research on the leaching reaction of calcium carbide slag and the CO₂ carbonization mechanism of calcium chloride ammonia water system.

Key words: green nano-calcium carbonate, calcium carbide slag, Leaching reaction, composite carbonization, pre-carbonization, CO₂ carbonization

CLC Number:

TQ132.32

YAN Xin, LIU Hailu, LIU Baolin, LIU Yi, LIU Yanyang. Research on key technologies and mechanisms of green nano calcium carbonate production[J]. Inorganic Chemicals Industry, 2025, 57(1): 71-76.

Figures/Tables 8

Table 1

Fig.1

Fig.2

Fig.3

Table 2

Fig.4

Fig.5

Fig.6

References 16

1	颜鑫，魏义兰.含钙镁废渣综合利用的现状及展望［J］.无机盐工业，2022，54（1）：7-11.
	YAN Xin， WEI Yilan.Present situation and prospect of comprehensive utilization of waste residue containing calcium and magnesium［J］.Inorganic Chemicals Industry，2022，54（1）：7-11.
2	颜鑫，李斌，刘保林，等.电石渣生产绿色微细轻质（纳米）碳酸钙的新工艺研究［J］.纸和造纸，2024，43（1）：18-21.
	YAN Xin， LI Bin， LIU Baolin，et al.Research on a new process for producing green light（nano） calcium carbonate from calcium carbide slag［J］.Paper and Paper Making，2024，43（1）：18-21.
3	颜鑫，刘海路，马媛媛，等.以电石渣为原料生产食品级轻质碳酸钙的绿色新工艺［J］.现代化工，2019，39（2）：199-201.
	YAN Xin， LIU Hailu， MA Yuanyuan，et al.A new and green process for producing food grade light calcium carbonate from carbide slag［J］.Modern Chemical Industry，2019，39（2）：199-201.
4	颜鑫，卢云峰，马媛媛，等.氯化钙-氨水体系生产纳米碳酸钙的复合碳化机理研究［J］.无机盐工业，2019，51（7）：77-80.
	YAN Xin， LU Yunfeng， MA Yuanyuan，et al.Study on composite carbonization mechanism of nano calcium carbonate produced by calcium chloride-ammonia water system［J］.Inorganic Chemicals Industry，2019，51（7）：77-80.
5	颜鑫，卢云峰.轻质系列碳酸钙关键技术［M］.北京：化学工业出版社，2016.
6	颜鑫.一种电石渣生产高纯度轻质碳酸钙的中试技术［J］.无机盐工业，2019，51（8）：93.
	Yan Xin.The invention relates to a pilot test technology for producing high purity light calcium carbonate from calcium carbide residue［J］.Inorganic Chemicals Industry，2019，51（8）：93.
7	颜鑫，吴健谊，卢云峰，等.氨碱厂碱渣充分综合利用新技术的研究［J］.无机盐工业，2021，53（1）：68-71.
	YAN Xin， WU Jianyi， LU Yunfeng，et al.Study on new technology of comprehensive utilization of alkali residue in ammonia alkali plant［J］.Inorganic Chemicals Industry，2021，53（1）：68-71.
8	乔叶刚.用电石废渣制备纳米碳酸钙的研究［J］.中国粉体技术，2005，11（1）：39-41.
	QIAO Yegang.Study on preparation of nano-sized calcium carbonate by calcium carbide waste residue［J］.China Powder Science and Technology，2005，11（1）：39-41.
9	阳平坚，彭栓，王静，等.碳捕集、利用和封存（CCUS）技术发展现状及应用展望［J］.中国环境科学，2024，44（1）：404-416.
	YANG Pingjian， PENG Shuan， WANG Jing，et al.Carbon capture，utilization and storage（CCUS） technology development status and application prospects［J］.China Environmental Science，2024，44（1）：404-416.
10	LI Xiaolong， LIU Yan， ZHANG Tingan.Conversion of activated calcium in industrial water to micron CaCO₃ powder based on CO₂ absorption and mineralization［J］.Minerals，2023，13（7）：979.
11	WILLIAMS J M， ZHAO Diandian， ZHANG Ning，et al.Calcium carbonate and reactive silica recovery from waste cement：The influence of processing parameters on upcycled material properties and carbon intensity［J］.Chemical Engineering Journal，2024，482：149013.
12	TAN W L， AHMAD A L， LEO C P，et al.A critical review to bridge the gaps between carbon capture，storage and use of CaCO₃ ［J］.Journal of CO2 Utilization，2020，42：101333.
13	叶知远，饶娜，夏菖佑，等.CO₂加氢制甲醇催化剂与项目进展［J］.洁净煤技术，2024，30（8）：150-161.
	YE Zhiyuan， RAO Na， XIA Changyou，et al.Advances in catalysts and project progress for CO₂ hydrogenation to methanol［J］.Clean Coal Technology，2024，30（8）：150-161.
14	刘硕，张志璐，高志豪，等.二氧化碳利用产业发展技术路线研究：以宁夏为例［J］.洁净煤技术，2024.Doi：10.13226/j.issn.1006-6772.CN23090101.
	LIU Shuo， ZHANG Zhilu， GAO Zhihao，et al.Research on the development technology route of carbon dioxide utilization industry：Taking Ningxia as an example［J］.Clean Coal Technology，2024.Doi：10.13226/j.issn.1006-6772.CN23090101.
15	蔡梅，林益安，郑亚兰，等.CO₂回收利用技术及在煤化工领域的发展［J］.煤化工，2021，49（5）：11-15.
	CAI Mei， LIN Yian， ZHENG Yalan，et al.CO₂ recycling technology and its development in coal chemical industry［J］.Coal Che-Industry mical，2021，49（5）：11-15.
16	丁文金，刘卓齐，陈秋菊，等.电石渣矿化CO₂-可控制备碳酸钙的实验研究［J］.四川大学学报（自然科学版），2023，60（4）：143-151.
	DING Wenjin， LIU Zhuoqi， CHEN Qiuju，et al.Controllable preparation of CaCO₃ from carbide slag by CO₂ sequestration［J］.Journal of Sichuan University（Natural Science Edition），2023，60（4）：143-151.

项目	m（绿色碳酸钙）/g	产率/ %	m［残渣（干基）］/g	体积/ mL	c（Ca²⁺）/（mol·L^-1）
理论值	243.8	100	20	—	—
新鲜浸取液	233	95.6	27.92	2 000	1.20
一次母液浸取液	210	86.1	45.02	2 400	0.84
二次母液浸取液	188	77.1	61.22	2 500	0.75
三次母液浸取液	161	66.0	81.54	2 600	0.62

[1]	YANG Yue, ZHU Ganyu, ZHANG Jianbo, MENG Ziheng, LIU Xinhui, YANG Jing, YAN Kun, PENG Zonggui, WANG Qiujian, LI Huiquan. Study on preparation of desulfurizer and byproduct gypsum from calcium carbide slag by cyclone separation [J]. Inorganic Chemicals Industry, 2023, 55(5): 78-84.
[2]	YANG Fengling,ZHAI Min,REN Lei,ZHANG Yuanyuan,CHENG Fangqin,DONG Hongyu. Influencing factors of crystallization products in wet desulfurization of carbide slag [J]. Inorganic Chemicals Industry, 2023, 55(2): 92-98.
[3]	Yan Xin1，Lu Yunfeng2，Ma Yuanyuan3，Xie Long3. Study on composite carbonization mechanism of nano calcium carbonateproduced by calcium chloride-ammonia water system [J]. Inorganic Chemicals Industry, 2019, 51(7): 77-80.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Research on key technologies and mechanisms of green nano calcium carbonate production

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 16

Related Articles 3

Metrics

Comments

Recommended 0