Inorganic Chemicals Industry >
Study on macro?kinetics of carbonization reaction of ammonia alkali salt sludge
Received date: 2021-09-24
Online published: 2022-06-22
Salt sludge is the waste discharged from the refined brine process during the production of soda，its effective components is mainly Mg（OH）2，CaSO4，CaCO3，NaCl，etc.In the world，about 55 million tons of salt sludge is produced every year，and its comprehensive utilization techniques has become an urgent problem to be solved by soda production enterprises.A carbonization method was proposed to separate calcium and magnesium from salt sludge and convert them into calcium carbonate and magnesium sulfate products.The effect of solid-liquid ratio，reaction temperature，salt sludge particle size on magnesium extraction rate was researched.The results showed that with the decrease of solid?liquid ratio，the size of salt sludge particles and the increase of reaction temperature，the extraction rate of magnesium was gradually increased. It was found that the extraction rate of magnesium in salt sludge reached 96.04% under the conditions of solid?liquid ratio（g/mL） of 1∶10，reaction temperature of 50 ℃ and salt sludge particle size of ≤75 μm.The shrinking core model was used for fitting，and the carbonization process could be fitted the shrinking core model with constant particle size.The results showed that the rate controlling step of salt sludge on carbon dioxide absorption process was magnesium hydroxide dissolu?
tion control，and the activation energy was 24.22 kJ/mol.This research could provide basic theory for the scale?up of salt sludge carbonization reactors.
Shaokang ZHANG , Hua ZHAO , Runjing LIU . Study on macro?kinetics of carbonization reaction of ammonia alkali salt sludge[J]. Inorganic Chemicals Industry, 2022 , 54(6) : 120 -124 . DOI: 10.19964/j.issn.1006-4990.2021-0580
| 1 | 刘润静，刘兴，罗慧慧，等.氯化铵浸取法回收盐泥中的镁［J］.化工环保，2019，39（5）：552-556. |
| 1 | LIU Runjing， LIU Xing， LUO Huihui，et al.Recovery of magnesium from salt sludge by leaching with ammonium chloride［J］.Environmental Protection of Chemical Industry，2019，39（5）：552-556. |
| 2 | 王锐清.氨碱法纯碱生产废渣的开发利用进展［J］.纯碱工业，2005（6）：16-19. |
| 2 | WANG Ruiqing.Progress on exploitation and utilization of waste residue in ammonia soda industry［J］.Soda Industry，2005（6）：16-19. |
| 3 | 张润泽.氨碱法纯碱生产中废液废渣的治理和综合利用［J］.化工管理，2015（8）：225. |
| 3 | ZHANG Runze.The comprehensive utilization and harnessing of waste liquid and waste residuce in producing process of sodium carbonate［J］.Chemical Enterprise Management，2015（8）：225. |
| 4 | 王晓娜，张云净，王亚飞，等.氨碱法纯碱厂废渣综合利用［J］.化学工程师，2014，28（2）：32-34. |
| 4 | WANG Xiaona， ZHANG Yunjing， WANG Yafei，et al.Comprehensive utilization for alkaline slag in the soda production by ammonia?soda process［J］.Chemical Engineer，2014，28（2）：32-34. |
| 5 | 朱春来，刘素芹.基于氨碱法纯碱生产中废液及碱渣的综合利用研究［J］.化工管理，2018（14）：144-145. |
| 5 | ZHU Chunlai， LIU Suqin.Study on comprehensive utilization of waste liquid and alkali residue in soda ash production based on ammonia?alkali method［J］.Chemical Enterprise Management，2018（14）：144-145. |
| 6 | 崔耀星，陈留平，徐俊辉，等.盐泥资源综合利用的研究进展［J］.氯碱工业，2018，54（4）：33-36，40. |
| 6 | CUI Yaoxing， CHEN Liuping， XU Junhui，et al.Research progress on comprehensive utilization of salt mud resources［J］.Chlor?Alkali Industry，2018，54（4）：33-36，40. |
| 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. |
| 7 | 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 | 黎艳，王娟芳，吴彬，等.利用盐泥制取轻质氧化镁［J］.化工环保，2013，33（2）：144-148. |
| 8 | LI Yan， WANG Juanfang， WU Bin，et al.Preparation of light magnesium oxide from salt mud［J］.Environmental Protection of Che? |
| 8 | Industry mical，2013，33（2）：144-148. |
| 9 | 孙维兵，侯梦迪.浅谈石灰纯碱法精制盐水［J］.纯碱工业，2019（2）：11-13. |
| 9 | SUN Weibing， HOU Mengdi.Refining brine technique by using lime?soda method［J］.Soda Industry，2019（2）：11-13. |
| 10 | 云玉娥，刘艳娟，王秉钧.盐水精制过程中用硫酸钠除钙可行性试验分析［J］.化学工程师，2016，30（6）：79-80，72. |
| 10 | YUN Yue， LIU Yanjuan， WANG Bingjun.Experimentation of the brine purity for removing calcium by sodium sulfate［J］.Chemical Engineer，2016，30（6）：79-80，72. |
| 11 | 刘润静，刘兴，赵华，等.一种盐泥生产轻质碳酸钙和七水硫酸镁的方法：中国，109574055B［P］.2021-03-26. |
| 11 | LIU Runjing， LIU Xing， ZHAO Hua，et al.A method for producing light calcium carbonate and magnesium sulfate heptahydrate from salt mud：CN，109574055B［P］.2021-03-26. |
| 12 | 陈建峰，刘润静，沈志刚，等.超重力反应沉淀法制备碳酸钙的过程与形态控制［J］.过程工程学报，2002，2（4）：309-313. |
| 12 | CHEN Jianfeng， LIU Runjing， SHEN Zhigang，et al.High?gravity reactive precipitation process and morphology control for precipitated calcium carbonate［J］.The Chinese Journal of Process Engineering，2002，2（4）：309-313. |
| 13 | 周相廷，翟学良，刘百年，等.Mg（OH）2的结晶性和粒度对碳酸化的影响：Ⅱ.影响Mg（OH）2浆液碳酸化的因素［J］.无机盐工业，1996，28（5）：13-15. |
| 13 | ZHOU Xiangting， ZHAI Xueliang， LIU Bainian，et al.Effect of Mg（OH）2 crystallinity and particle size Mg（OH）2 on the carbonationⅡ.Factors affecting the carbonation of the slurry［J］.Inorganic Chemicals Industry，1996，28（5）：13-15. |
| 14 | YANG Weiguo， WANG Jinfu， JIN Yong.Gas?liquid mass transfer in a slurry bubble column reactor under high temperature and high pressure［J］.Chinese Journal of Chemical Engineering，2001， |
| 14 | 9（3）：253-257. |
| 15 | DU Yi， FU Changqing， GONG Bengen，et al.Real?time investigation of the CO2 mineral carbonation reaction rate through direct aqueous route using semi-dry desulfurization slag［J］.Journal of CO2 Utilization，2021，51.Doi：10.1016/j.jcou.2021.101614 . |
| 16 | BHARADWAJ H K， LEE J Y， LI Xin，et al.Dissolution kinetics of magnesium hydroxide for CO2 separation from coal?fired power plants［J］.Journal of Hazardous Materials，2013，250-251：292- 297. |
| 17 | ANTONY M P，JHA A， TATHAVADKAR V.Alkali roasting of Indian chromite ores：Thermodynamic and kinetic consideratio? |
| 17 | ns［J］.Mineral Processing and Extractive Metallurgy，2006，115（2）：71-79. |
| 18 | 伊元荣，韩敏芳.钢渣湿法捕获CO2反应机制研究［J］.环境科学与技术，2013，36（6）：159-163，190. |
| 18 | YI Yuanrong， HAN Minfang.Study on reaction mechanism of CO2 capture by wet steel slag［J］.Environmental Science & Technology，2013，36（6）：159-163，190. |
| 19 | 王余莲，印万忠，张夏翔，等.三水碳酸镁法制备碱式碳酸镁过程研究［J］.矿产保护与利用，2017（4）：81-86. |
| 19 | WANG Yulian， YIN Wanzhong， ZHANG Xiaxiang，et al.Preparation of hydromagnesite using nesquehonite method［J］.Conservation and Utilization of Mineral Resources，2017（4）：81-86. |
| 20 | 伊文涛，闫春燕，马培华.碳酸锂常压鼓泡碳化宏观反应动力学研究［J］.化工矿物与加工，2009，38（3）：1-4，27. |
| 20 | YI Wentao， YAN Chunyan， MA Peihua.Macro?kinetics study on bubbling carbonation of Li2CO3 slurries at atmospheric pressure［J］.Industrial Minerals & Processing，2009，38（3）：1-4，27. |
| 21 | CATTANEO A， GUALTIERI A F， ARTIOLI G.Kinetic study of the dehydroxylation of chrysotile asbestos with temperature by in situ XRPD［J］.Physics and Chemistry of Minerals，2003，30（3）：177-183. |
| 22 | 朱炳辰.化学反应工程［M］.北京：化学工业出版社，1993. |
| 22 | ZHU Bingchen.Chemical reaction engineering［M］.Beijing：Che? |
| 22 | mical Industy Press，1993. |
| 23 | XIE Pengfei， LI Liqing， HE Zhicheng，et al.Gas?liquid mass trans? |
| 23 | fer of carbon dioxide capture by magnesium hydroxide slurry in a bubble column reactor［J］.Journal of Central South University，2019，26（6）：1592-1606. |
| 24 | ASHRAF W， OLEK J.Carbonation activated binders from pure calcium silicates：Reaction kinetics and performance controlling factors［J］.Cement and Concrete Composites，2018，93：85-98. |
| 25 | 丁珂，孙晓君，李会杰，等.氧化镁蒸氨反应的动力学和机理研究［J］.无机盐工业，2019，51（11）：31-35. |
| 25 | DING Ke， SUN Xiaojun， LI Huijie，et al.Study on kinetics and mechanism of ammonia evaporation reaction of magnesium oxi? |
| 25 | de［J］.Inorganic Chemicals Industry，2019，51（11）：31-35. |
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