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《化工学报》是 1 92 3年创刊的《中华化学工业会会志》和 1 934年问世的《化学工程》合并的刊物 .现在的英文名称仍为JournalofChemicalIndustryandEngineering(China) .通常 ,“化工”包括化学工程和化学工艺 .多年来《化工学报》刊登的论文是以化学工程和化学工艺两方面为主 相似文献
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In a previous investigation in 1963 Wang and Shen et al,found that the well known flow equationfor pulsed sieve plate column given by J.D.Thornton should be modified and written asV_s=V_d/X V_c/(1-x)=V_0(1-x)~nThis paper is a continuation of the previous works.Four kinds of liquid-liquid system were examinedin this study.The parameters n and V_o,the Sauter mean diameter of dispersed droplets D_(3.2) arc corro-leted in terms of physical properties of the systems and operation variables.Calculated flooding veloci-ties are close to the experimental values with deviation within ±15%. 相似文献
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An imperfect pulse injection stimulus-response technique and an on-line computer system are usedto improve the experimental and data processing technique in the study of axial mixing in the pulsed-sieve-plate extraction column.Comparison of different methods for parameter estimation proves that the“Least-squares fitting method in the time domain”is superior to the moment method and some weightedmoment methods.The uncertainty in parameter estimation is discussed.The effects of pulsation onthe axial mixing coefficient of single phase flow in the column are examined. 相似文献
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环形脉冲萃取柱中连续相轴向混合的研究 总被引:1,自引:0,他引:1
本文在30%TBP(煤油)-水中以水为连续相,实验研究了环形脉冲萃取柱内连续相的轴向混合。实验中采用了示踪剂扰动—响应方法。结果表明,单相流时环形脉冲萃取柱轴向混合系数E_c值仅为相同截面积圆形脉冲筛板柱的40%。单相流条件下轴向混合系数可由下式关联: E_c=0.02(fA)~(1.26)+3.5×10~(-5) 对于两相流条件下,连续相轴向混合系数与分散相存留分数值有关,相应关联式为 E_c=0.02(fA)~(1.26)(1-x)~(3.24)+3.5×10~(-5) 65组实验数据关联的最大偏差小于20%。 相似文献
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Mass transfer experiments have been carried out in a 40mm diameter pulsed sieve-plate extraction column. Both standard and "dispersion-coalescence" type cartridges were tested with 30% TBP (kerosene as diluent)/ Nitric Acid/Water system. "Ture" volumetric mass transfer coefficient and backmixing 相似文献
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汪家鼎、沈忠耀等曾在1963年提出了脉冲筛板萃取柱中两相流体流动特性的基本关联式:V_d/x+V_c/(1-x)=V_o(1-x)~n。在内径为25mm标准板结构的玻璃柱中测得煤油~水体系的方程指数n=2.2±0.2。并推断n应为两相体系物性的函数。本文是以上工作的继续和深入。研究中采用了四种体系。在各种操作条件下对式中的参数n、V_o与体系物性及分散相液滴平均直径D(3,2)之间的关系进行了探讨。得到了按体系物性和操作参数计算D(3,2)、n和V_o的半经验关联式。利用这些关联式计算的液泛流速与实测值相比,绝大多数误差在±15%以内。 相似文献
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