Inorganic Chemicals Industry >
Coalescence crystallization of large particle KCl and its particle size control
Received date: 2020-09-27
Online published: 2021-08-11
The solubility of potassium chloride in water was measured by focused reflection beam measurement（FBRM）.The preparation of KCl particle crystals and its particle size control rule under speed of 250 r/min were studied.The effects of con-sumption of primary particles,cooling rate and supersaturation on the coalescence of KCl in solution at this speed were inves-tigated.The results showed that: the solubility of potassium chloride increased with the increase of temperature;the faster the cooling rate led to the greater the instantaneous supersaturation of solution,the easier nucleation led to produce more parti-cles;when the optimal addition amount of primary particles was 0.05~0.1 g in 100 mL solution,the average particle size of the prepared crystal could reach 1 900~2 000 μm and the product had moderate particle size and good sphericity.
Junfeng Wan , Weibing Dong , Xulong Chen , Jingling Du , Gang Wang . Coalescence crystallization of large particle KCl and its particle size control[J]. Inorganic Chemicals Industry, 2021 , 53(8) : 50 -54 . DOI: 10.19964/j.issn.1006-4990.2020-0532
| [1] | 杨正红. 欧奇奥粒径和形貌分析在化肥质量控制中的应用[J]. 化肥工业, 2019, 46(2):6-11. |
| [2] | Jin S, Chen M, Li Z, et al. Design and mechanism of the formation of spherical KCl particles using cooling crystallization without additi-ves[J]. Powder Technology, 2018, 329:455-462. |
| [3] | 李志强, 杨立斌, 沙作良, 等. 氯化钾间歇冷却结晶生长规律及粒径控制实验研究[J]. 无机盐工业, 2019, 51(8):33-36. |
| [4] | 胡英顺, 尹秋响, 侯宝红, 等. 结晶及沉淀过程中粒子聚结与团聚的研究进展[J]. 化学工业与工程, 2005, 22(5):371-375. |
| [5] | 蔡启振, 韩冬林. 悬浮法聚氯乙烯树脂颗粒形成历程[J]. 自然科学进展:国家重点实验室通讯, 1992, 2(1):60-67. |
| [6] | Mukhopadhyay I, Mohandas V P, Desale G R, et al. Crystallization of spherical common salt in the submillimeter size range without habit modifier[J]. Industrial & Engineering Chemistry Research, 2010, 49(23):12197-12203. |
| [7] | Qin Y, Yu D, Zhou J. DNA action on the growth and habit modi-fication of NaCl crystals[J]. Crystengcomm, 2017.Doi: 10.1039.C7CE01148B. |
| [8] | 彭美勋, 沈湘黔, 危亚辉. 球形Ni(OH)2控制结晶过程中的陈化研究[J]. 材料导报, 2007, 21(11):121-124. |
| [9] | Riebel D I V, Kofler D I V, Löffler I F. Shape characterization of crystals and crystal agglomerates[J]. Particle & Particle Systems Ch-Characterization, 1991, 8(1/2/3/4):48-54. |
| [10] | Kubota N, Yokota M, Mullin J W. The combined influence of super-saturation and impurity concentration on crystal growth[J]. Journal of Crystal Growth, 2000, 212(3/4):480-488. |
| [11] | Schmok K. Modelling of mechanism of agglomeration of KCl crystallization[J]. Crystal Research & Technology, 1988, 23(8):967-972. |
| [12] | 张莉媛, 王刚, 齐美玲, 等. FBRM、PVM在氯化钾结晶介稳区测定中的应用研究[J]. 盐科学与化工, 2019, 48(11):29-32. |
| [13] | 林鹤, 朱顺官, 李洪珍, 等. 聚焦光束反射测定HMX溶解度及关联[J]. 含能材料, 2012, 20(5):601-604. |
| [14] | 刘晓雨, 胡洋, 王卓, 等. 烟酸在水中的溶解度及介稳性质的研究[J]. 化学工程, 2019, 47(7):35-40. |
| [15] | Sunier A A, Baumbach J. The solubility of potassium chloride in or-dinary and heavy water[J]. Journal of Chemical and Engineering Data, 1976, 21(3):335-336. |
| [16] | Smallwood P V . Vinyl chloride suspension polymerisation and the control of polymer properties[J]. Makromolekulare Chemie Macro-molecular Symposia, 1989.Doi: 10.1002/masy.19890290103. |
| [17] | 潘祖仁. 悬浮法聚氯乙烯颗粒结构和成粒过程[J]. 聚氯乙烯, 1988(3):39-44. |
| [18] | 赵劲松. 悬浮法聚氯乙烯颗粒形成的研究[J]. 高分子通讯, 1981(4):239-246. |
| [19] | 齐莹莹. 磷酸一铵结晶热力学、动力学及工艺优化[D]. 天津: 天津大学, 2016. |
| [20] | 赵金芳, 杨立国, 刘俊果. 盐酸土霉素在有机溶剂中溶解度测定、关联与异常现象分析[J]. 中国抗生素杂志, 2016, 41(3):218-222. |
| [21] | Fevotte G, Gherras N, Moutte J. Batch cooling solution crystalliza-tion of ammonium oxalate in the presence of impurities:Study of solubility,supersaturation,and steady-state inhibition[J]. Crystal Growth & Design, 2013, 13(7):2737-2748. |
| [22] | 郑晓霞. 硫酸钙在硝酸—磷酸介质中的结晶形态及溶解度的研究[D]. 太原: 太原理工大学, 2010. |
| [23] | Zelyanskii A V, Zhukova L V, Kitaev G A . Solubility of AgCl and AgBr in HCl and HBr[J]. Inorganic Materials, 2001, 37(5):523-526. |
/
| 〈 |
|
〉 |