超声对亚硫酸钙晶粒形成及其形态的影响研究
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摘要
氢氧化钙和二氧化硫中和反应是糖厂亚硫酸法澄清工艺的主要反应,该过程要求氢氧化钙和二氧化硫反应迅速、完全,从而使糖液中的亚硫酸根离子和钙离子含量较低,形成的亚硫酸钙沉淀颗粒均匀、比表面大,对蔗汁中的非糖份吸附能力强,使白砂糖具有更好的品质。但是由于现行工艺的缺点,常常会导致产品白砂糖中二氧化硫残留量偏高,以至于降低了白砂糖的品质。因此,找到一种简单有效的提高亚硫酸法澄清效果的辅助手段成为制糖工业的一个热点。近来,超声波作为一种清洁、有效的辅助手段被用来研究强化糖厂亚硫酸法澄清工艺。作为超声强化蔗汁澄清研究的基础工作,本文在前人研究的基础上,研究超声波对氢氧化钙和二氧化硫中和反应的影响,主要研究内容如下:
     (1)研究了超声参数如超声作用功率、超声作用时间、超声探头深入溶液距离等对水溶液中亚硫酸和氢氧化钙中和反应过程的影响。结果表明与磁力搅拌反应相比较而言,超声作用可以显著降低溶液中Ca2+和SO32-的残留量,且所有参数对反应都有影响。超声作用的最佳条件是:超声功率97.5W,超声作用时间1min,超声探头深入距离1.4cm。
     (2)研究了超声参数如超声作用功率、超声作用时间、超声探头深入溶液距离等对亚硫酸钙晶粒形态的影响。研究结果表明超声作用能使亚硫酸钙晶粒更小、更均匀,拥有更大的比表面积;对反应结束后形成的亚硫酸钙晶粒而言,晶粒体积越大,超声作用对其影响越明显。
     (3)研究了超声作用对氢氧化钙和亚硫酸中和反应生成亚硫酸钙晶粒过程诱导期的影响。研究结果表明超声作用可以明显缩短亚硫酸钙晶粒形成过程的成核诱导期;理论推导结果表明超声作用能够影响亚硫酸钙晶粒形成过程是因为其能够降低溶液的表面张力,增强溶液中粒子的扩散作用。
     (4)研究了超声作用对不同浓度的氢氧化钙溶液、亚硫酸溶液表面张力和电导率的影响。研究结果表明超声作用能够降低溶液的表面张力,增加溶液的电导率,证明了前面理论推导结果的正确性。
     (5)研究了通入氮气对超声空化作用的影响以及空化作用的强弱对亚硫酸钙晶粒形成过程的影响。研究结果表明通入氮气能够增强超声空化作用;超声空化作用对亚硫酸钙晶粒形成过程起促进作用。
The neutralization reaction of calcium hydroxide and sulfur dioxide is the main reaction of cane juice clarification process in cane sugar mill which sulfurous acid methods are applied. According to the industrial need, in order to obtain White sugar with high quality,all the following should match: calcium hydroxide and sulfur dioxide should react fast and completely, therefore the remains of Ca2+ and SO32- in the sugar juice are little; the calcium sulfite crystals formed should be uniform and possess high specific surface area, therefore the crystals have strong adsorption capacity in absorbing non-sugar impurities. But the present technology has some disadvantages, the remains of SO32- in white sugar are often high, which reduces the quality of the products and depresses the competitiveness of sugar factory. For that reason, finding a method which has great efficiency and simple process is the hotspot in sugar-making industry. Lately, ultrasound as a clean、effective means is studied to enhance the cane juice clarification process. As the basic research of cane juice clarification process enhanced by ultrasonic treatment, based on previous works, the influence of ultrasonic treatment on the neutralization reaction of calcium hydroxide and sulfur dioxide is studied. The main contents of studies were as follow:
     1. The influences of ultrasonic parameters such as ultrasonic power、ultrasonic treatment time and horn immersion depth on the reaction of calcium hydroxide and sulfur dioxide were analyzed. The results showed that compared with magnetic stirring, the residuals of Ca2+ and SO32- was decreased significantly and all of the ultrasound parameters affected the results. The optimum conditions were as follows:ultrasound power 97.5W,ultrasonic treatment time 1min,horn immersion depth 1.4cm.
     2. The influences of ultrasonic parameters such as ultrasonic power、ultrasonic treatment time and horn immersion depth on the morphology of calcium sulfite formed were analyzed. The results showed that the crystal morphology changes with ultrasonic treatment. Compared with natural reaction and reaction with magnetic stirring, the calcium sulfite crystals obtained by ultrasound treatment was smaller in size and more uniform in shape and possessed higher specific surface area. In addition, to the calcium sulfite already formed, the bigger the crystals were, the more influence ultrasonic treatment had.
     3. The influence of ultrasonic treatment on primary nucleation of calcium sulfite was studied. The results showed that ultrasonic treatment decreased the induction period significantly, and based on the classical theory of nucleation, ultrasonic treatment could decrease surface tension and enhance diffusion of particles in the solution.
     4. The influence of ultrasonic treatment on the properties of calcium hydroxide solution and sulfurous acid solution with different concentrations was investigated. The result showed that ultrasonic treatment reduced surface tension and increased electrical conductivity of these solutions, therefore the result obtained by the classical theory was verified.
     5. The change of cavitation effect was study by adding nitrogen,and the influence of ultrasonic treatment that had different cavitation intensity on the crystallization process was investigated. The results showed that adding nitrogen enhanced the ultrasonic cavitation effect, and ultrasonic cavitation effect accelerated the crystallization process of calcium sulfite.
引文
[1]袁易.全超声换能器[M].南京大学出版社,1993.10~13
    [2]同济大学声学研究室.超声工业测量技术[M].上海人民出版社,1977.46
    [3]杨训仁,吕如榆,戴根华译.理论声学[M].科学出版社,1986.23
    [4]盛睿,庄建梅,李栋栋,等.超声波对石英晶体微天平响应性能的影响[J].化学传感器,2009.4:38~42
    [5] Zhaofeng Liang, Guangping Zhou, Shuyu Lin, et a1. Study of low-frequency ultrasonic cavitation fields based on spectral analysis technique[J].Ultrasonics,2006. (44): 115~120
    [6] Jorg Hofmann, Ute Freier, Mike Wecks. Ultrasound promoted C-alkylation of benzyl cyanide- effect of reactor and ultrasound parameters[J].Ultrasonics Sonochemistry,2003,(10):271~275
    [7]黄永春,鲁聿伦,杨锋,等.超声强化糖汁脱色的研究[J].食品工业科技,2009.30(12):284~286.
    [8] P.Ciuti, N.V.Dezhkunov, G.Iernetti, et a1. Cavitation phenomena in pulse modulated ultrasound fields[J] .Ultrasonics,1998.(36):569~574
    [9]肖贵平.木瓜蛋白酶超声波提取工艺及其酶学性质[J].福建农林大学学报(自然科学版),2005.34(3):318~323
    [10]朱兆友,朱庆书,于慧荣,等.超声波法提取鱼腥草黄酮的研究[J].化学工业与工程,2010.1:49~52
    [11] Jorg Hofmann, Ute Freier, Mike Wecks. Ultrasound promoted C-alkylation of benzyl cyanide-effect of reactor and ultrasound parameters[J].Ultrasonics Sonochemistry, 2003.(10): 271~275
    [12]曹新志,熊俐,明红梅,等.超声波对浓香型白酒陈化效果影响的初步研究[J].食品与发酵科技,2010.1:8~10.
    [13]梁慧星,陈欣,陈倩.超声波辅助提取番茄中番茄红素的工艺[J].湖北农业科学,2010.1:162~165
    [14]任雪峰,吴冬青,王永生,等.超声波法提取迎春花总黄酮含量的工艺研究[J].光谱实验室,2010.1:250~253
    [15]余祥英,王志祥,周黎明.超声提取大豆磷脂酰胆碱的工艺条件研究[J].食品与发酵工业,2009.12:160~162
    [16] F. Laugier, C. Andriantsiferana, A. M.Wilhelm, et a1. Ultrasound in gas-liquid systems :Effects on solubility and mass transfer[J] .Ultrasonics Sonochemistry,2008.(15):965~972
    [17]赵旭博,董文宾,于琴,等.超声波技术在食品行业应用新进展[J].食品研究与开发,2005.26(1):3~7
    [18]宋国胜,胡青松,李琳.超声波技术在食品科学中的应用与研究[J].食品基础科学,2008.06:609~612.
    [19] Kamaljit Vilkhu, Raymond Mawson, Lloyd Simons, et a1. Applications and opportunities for ultrasound assisted extraction in the food industry - A review[J] .Innovative Food Science and Emerging Technologies,2008.(9):161~169
    [20] Anna Kordylla, Stephan Koch, Feelly Tumakaka, et a1.Towards an optimized crystallization withultrasound:effect of solvent properities and ultrasonics process parameters[J].Journal of Crystal Growth,2008.06:057~063
    [21]赵茜,于淑娟,高大维.食品工业结晶过程起晶新方法[J].华南理工大学学报:自然科学版.1996,10:1~5.
    [22]后藤昭博,梁尊山.用超声波喷雾器制造超微粒氯化钠结晶[J].国外制盐工业.1992,5(3):24~28.
    [23]赵继华.超声场强化氢氧化铝结晶过程的研究[J].化学学报.2002,60(1):81~86.
    [24]张雪梅,蔡路茵,苏忠杰,等.超声波对三水醋酸钠相分离及结晶的影响[J].化工学报.2010,1:104~108.
    [25]谭艳芝,陈启元,尹周澜.超声波对蒸发结晶法制备仲钨酸铵过程的影响[J].中国钨业.2008,23(6)19~21.
    [26]祝远娇,陈小鹏,陈月圆,等.超声波协同反应~结晶耦合单离脱氢枞酸[J].化工学报.2008,59(4):920~926.
    [27]杭方学,丘泰球.超声对穿心莲内酯溶析结晶的影响[J] .高校化学工程学报,2008,22(4):585~590.
    [28]李杰,陈伟庆,刘青.超声处理对饱和NH4Cl水溶液结晶过程的影响[J] .安徽工业大学学报:自然科学版.2008,25(3):255~258
    [29] Tetsu Ichitsubo, Eiichiro Matsubara, Kazuhiro Anazawa, et a1. Crystallization accelerated by ultrasound in Pd-based metallic glasses[J] .Journal of Alloys and Compounds.2007,(434~435):194~195
    [30]李坚斌,温雪馨,李琳,等.超声波对马铃薯淀粉颗粒形貌与结晶结构的影响[J] .农业工程学报,2008,24(4):284~286
    [31]宋国胜,胡松青,李琳.功率超声在结晶过程中的应用的进展[J] .应用声学,2008,1:74~79
    [32]伍浩珉,宋金凤,冯颖韬,等.超声波对谷氨酸结晶过程影响的研究[J] .氨基酸和生物资源,2007,29(4):46~48.
    [33]朱涛.超声结晶及其应用[J] .现代物理知识,2007,19(5):28~29
    [34]周甜,钱刚,周兴贵,等.超声波对甘氨酸溶析结晶过程的影响[J].过程工程学报,2007,7(4):728~732.
    [35]杭方学,丘泰球,贲永光.声结晶技术的研究进展[J].声学技术,2007,26(3):539~544
    [36]杭方学,卢群,丘泰球,等.超声场对碳酸钙反应结晶成核影响的研究[J].陕西科技大学学报:自然科学版,2007,25(1):26~31.
    [37]白允强,李木森,曹宁,等.超声波和热处理对羟基磷灰石结晶度和形貌的影响[J] .材料热处理学报,2007,28(2):22~25.
    [38]谢彩峰,丘泰球,陆海勤,等.超声作用下碳酸钙晶体的形态变化[J].华南理工大学学报:自然科学版,2007,35(4):62~66.
    [39]华缜,靳正国,程志捷.超声条件下羟基磷灰石纳米针状晶体的制备[J].材料导报,2003,17(F09):75~77.
    [40]郭志起,李鸿,王静康,等.超声波对结晶过程的作用及机理[J].天津化工,2003,17(3):1~4.
    [41]靳正国,王英,郭多力,等.超声波处理对羟基磷灰石结晶形貌的影响[J].硅酸盐学报,2003,31(6):608~611.
    [42]同济大学声学研究室.超声工业测量技术[J].上海人民出版社,2001,46~47
    [43]高守雷,翟启杰,戚飞鹏,等.超声波在金属凝固中的应用与发展[J] .材料导报,2002,16:5~6,12
    [44] Wang Jun, Han Jiantao, Zhang Yang. The application of ultrasound technology in chemical production[J]. Contemporary Chemical Industry, 2002,12(4):187~189
    [45] Victor F, Humphrey. Ultrasound and matter—Physical interactions[J]. Progress in Biophysics and Molecular Biology, 2007,93:195~211
    [46]卢行芳,超声波热效应的应用研究[J].浙江工贸职业技术学院学报,2008,04(8):47~51
    [47]李廷盛,尹其光.超声化学[M] .科学出版社,1995,11:190~212.
    [48] A.Abouel-Kasem, K.M.Emara,S. M.Ahmed. Characterizing cavitation erosion particles by analysis of SEM images[J]. Tribology International, 2009, (42):130~136
    [49]杜功焕,朱哲民,龚秀芬.声学基础第二版[M].南京大学出版社,2001,462
    [50]钱祖文.非线性声学[J].科学出版社1992 220~233
    [51] Hang fang-xue, Lu qun, Qiutai-qiu, et al. Effect of ultrasound on the nucleation of Calcium Carbonate during reactivecrystallization[J]. Journal of Shanxi Universityof Science&Technology, 2007, (2) :26~31.
    [52]王伟宁,吕秉玲.碱式氯化镁的结晶方法研究[J] .无机盐工业.1990,(31) :22~23.
    [53] C.Virone, H. J. M. Kramer, G. M. van, et al. Primary nucleation induced by ultrasonic cavitation[J] . Journal of Crystal Growth, 2006, 294: 9~15.
    [54]邱泰球,张喜梅,李月花.声场影响过饱和糖液稳定性的机理研究[J].甘蔗糖业,1996,(2) :38~42.
    [55] Nathalie Lyczko, Fabienne Espitalier, Olivier Louisnard, et al. Effect of ultrasound on the induction time and the metastablezone widths of potassium sulphate[J] .Chemical Engineering Journal, 2002:233–241.
    [56] Etsuko Miyasaka, Yumi Kato, Minoru Hagisawa, et al. Effect of ultrasonic irradiation on the number of acetylsalicylic acid crystals produced under the supersaturated condition and the ability of controlling the final crystal size via primary nucleation[J]. Journal of Crystal Growth , 2006, 289:324–330
    [57] Keisuke Kakinouchi, Hiroaki Adachi, Hiroyoshi Matsumura, et al. Effect of ultrasonic irradiation on protein crystallization[J] .Journal of Crystal Growth . 2006),292:437–440.
    [58] E.Dalas. The effect of ultrasonic field on calcium carbonate scale formation[J]. Journal of Crystal Growth, 2001, 222(4) :287—292.
    [59]王光龙,侯翠红,张保林.超声对硫酸钙结晶过程影响的研究[J].化工矿物与加工,2002,31(6) :8~10
    [60]陆海勤,丘泰球,谢军生.超声波防除黑液蒸发器积垢的应用及机理[J].纸和造纸,2005,(2) :52—55
    [61] M D Luque de Castro, F Priego-Capote.Ultrasound-assisted crystallization (sonocrystallization) [J]. Ultrason Sonochem, 2007,(2) :717~724.
    [62]田军.超声波在碱式氯化镁结晶中的应用[J].哈尔滨商业大学学报(自然科学版),2005,(4) :221~222
    [63] Nacera Amara, Berthe Ratslm ba, Anne-Marie Wilhelm, et a1. Growth rate of potash alum crystals:comparison of Silent and ultrasonic conditions[J]. Ultrasonics Sonochemistry, 2004, 11:17~21
    [64]郭志超,王静康,李鸿,等.超声波对结晶过程部分热力学和动力学性质的影响[J].河北化工,2003,(2) :1~4
    [65]刘岩,丁锁根,义树生.声化学反应器设计研究进展[J].化学工程,1999,27(4) :17~18
    [66]高大维.煮糖起晶制种新方法-溶剂超声波起晶法[J].四川制糖发酵,1990(4) :13~17.
    [67] Keun-wann Lee.起声波处理和染料结晶性能对粒度分布的影响[J].国外纺织技术:纺织针织服装化纤染整,2002,(7) :17~20
    [68] I.Nishida. Precipitation of calcium carbonate by uhrasonic irradiation[J]. Ultrasonics Sonochemistry, 2004, 1(6): 423~428
    [69]张喜梅,丘泰球.声场对蔗糖晶体生长的影响[J].中国甜菜糖业,1995,(4) :14~16
    [70] R.K.Bund, A.B.Pandit, Sonocrystallization. Effect on lactose recovery and crystal habit[J]. Ultrasonics Sonochemistry, 2007,(14):143~152
    [71] I.Nishida. Precipitation of calcium carbonate by ultrasonic irradiation[J]. Ultrasonics Sonochemistry, 2004, 1(6):423~428
    [72]H. Li, J. Wang, Y. Bao, et al. Rapid sonocrystallization in the salting-out process[J]. Journal of Crystal. Growth, 247:192–198 (2003)
    [73] Amara.N, Ratsimba, Bwilhelm.A.M,, et al. Crystallization of potash alum: Effect of power ultrasound[J]. Ultrasonics Sonochemistry, 2001, (8): 265~270
    [74] H. Mitome. Mechanical effects and physical chemistry induced by irradiation of ultrasound[J]. Fun-sai, 2000, 4441~47
    [75] M.Romdhane, A.Gafri, F.Contamine, et al. Experimental study of the ultrasound attenutation in chemical reactors[J]. Ultrasonics Sonochemistry, 4(1997): 235~243
    [76] F.Faid, F.Contmine, A.M.Wilhelm, et al. Comparison of ultrasound effects in different reactors at 20kHz[J].Ultrasonics Sonochemistry, 5 (1998) :119~124
    [77] Parag M.Kanthale, ParagR.Gogate, Aniruddha B, et al. Mapping of an ultrasonic horn:link primary and secondary effects of ultrasound[J]. Ultrasonics Sonochemistry , 10 (2003) 331~335
    [78] Ajay Kumar, T.Kumaresan, Aniruddha B.Pandit, et al. Characterization of flow phenomena induced by ultrasonic horn[J]. Chemical Engineering Science, 61 (2006) : 7410~7420
    [79]刘正西,黄永春,孔红星,等.超声波对亚硫酸与氢氧化钙中和反应的影响[J].广西工学院学报,2008;19(1):63~66
    [80]广东省甘蔗糖业研究所主编.甘蔗制糖化学管理统一分析方法[M].北京:轻工业出版社,1976:59~68
    [81]陆海勤.超声场-静电场协同减缓换热设备积垢的研究[J].华南理工大学博士学位论文,2005:56
    [82] J.W. Mullin. Crystallization, third edition[M]. Butterworth-Heinemann Ltd: London, 2001, 189~202
    [83] A.Mersmann, M.Kind. Chemical engineering aspects of precipitation from solution[J]. Chemical Engineering Technology,1988,(11):264~276
    [84] Hiroyasu Nomura, Shinobu Koda, Keiji Yasuda, et al. Quantification of ultrasonic intensity based on the decomposition reaction of porphyrin[J]. Ultrasonics Sonochemistry, 1996(3):153~156
    [85]王成会,林书玉.超声空化效应对溶液电导率的影响[J].声学技术,2006,25(4):309~312
    [86]胡松青,李琳,郭祀远,蔡妙颜。功率超声对溶液性质的影响[J].应用声学2003(01):26~30.
    [87]姚成灿.超声波防止溶液蒸发过程中积垢形成的研究[J].华南理工大学硕士学位论文,2000:23
    [88] J.W. Mullin. Crystallization, fourth edition[M]. Butterworth-Heinemann Ltd. London, 2001,190~191
    [89] J.W. Mullin, Crystallization, fourth edition[M]. Butterworth-Heinemann Ltd., London, 2001, 184
    [90] Etsuko Miyasaka, Satomi Ebihara, Izumi Hirasawa. Investigation of primary nucleation phenomena of acetylsalicylic acid crystals induced by ultrasonic irradiation-ultrasonic energy needed to activate primary nucleation[J]. Journal of Crystal Growth, 2006, 295(1):97~101
    [91] Masahiro Kurotani, Etsuko Miyasaka, Satomi Ebihara, et al. Effect of ultrasonic irradiation on the behavior of primary nucleation of amino acids in supersaturated solutions[J]. Journal of Crystal Growth, 2009, 311(9):2714~2721
    [92] Etsuko Miyasaka, Yumi Kato, Minoru Hagisawa, et al. Effect of ultrasonic irradiation on the number of acetylsalicylic acid crystals produced under the supersaturated condition and the ability of controlling the final crystal size via primary nucleation Journal of Crystal Growth,2006, 289(1):324~330

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