《日化情报》1977年总目录

阶驮 页扯综 述1.山C一民l-烯烃生J/rt仲醉的穴利。方认…。·。…。·。。··。··。。··。·。·。……、。·。。·。。。,………。·312.国外狮酸1们N微况。。…··。··。·。。,·。··。。·。。·。··。·。。…··。。…·。。、…。··。。·。、、…、。。。。。·。。,…、I3.冈外下聚磷酸纳厂业的微况……、··。··。。··。·。………··、…··。……。…··。。·。。…·。…。·、….11科 学 实 验1.石蜡连续氧化和2介戍脂肪酸的形佚—…·。。………·。。…·、··。…。··。·、…。………·…     

气—液相平衡数据(恒沸系)续

十、丙翻(1)一醋吸甲嘴(2)共沸系相日(ZoOC)「’30。69300。7439丫. 0.吕0。6 1340。65220。96160。74280。6O220t.0 .2 0.406暇).廿1 .0 0。68855 0。74221共沸组成(0。7788) 0。79870 0。84041 0。89166 0。92562 0。92697 l‘000000。79810。83870。88930。92350。92481。0000186。19186。50共沸点(186。32)186。36186。26186。17185。75185。81 185。37Antoine常致忘.;}0。605540。6468住0。688590。74234共沸组成(0。7539)0。798750。840430。891680。925630。92698 1。000000。79710。83790。88880。9231。09245l。0000231。69231。…     

统计资料

工业发达国家化学工业产值(单位:亿美元)联①日本联邦德国英国法国意大利19811,830.0495。5794。75 16。0376。0334.0241。019821,724.05 19。58 15。3485。0282。0304。0227。01983l,892.0548。9847。6497。0256。0301。0229。02,1 10。0571。6495.0257。0291.0233.0①以亿卢布计。资料来源:《世界化学工业年鉴》,1986年版。工业发达国家化学工业投资(单位:亿美元)份美国苏联日本联邦德国英国法国意大利131。052 .827。931。025。012。0132。7132。854.859。025。625。828.011。011。027。019。014。011。010。0167。760.125.014。010。01 …     

日本1992年胶粘剂进口统计

批发.奋合计进口对象(t)(t)(t)韩国中国台湾泰国新加坡马来西亚印度尼西亚瑞典丹麦英国爱尔兰荷兰比利时法国德国瑞士西班牙意大利奥地利171.8 2 .0128。2 0。4 0 7。2 0。6342。3294。2 0。3 0179。0 2,6470。5294。6 0。3(百万日元) 47。5 2 .42221716。90。020。020。3 O 4。1 0。432.2 37。2 4。3 0。02 1。6367。2 16。7 0170.8 0 .525。40。060。22,325。4 4。16 0。634。549。210。7 1。025。9436,7 25.9 1。1170。8 0 .75。014。3 2。612.06。424。369。5 9 .2 1 .1 0 0 .2 71。6355。6 6。9 1。8 81。7403。11 18。2 ].9 83。4 1 …     

世界纺织纤维销售量预测

据苏联“纺织工业”1978年第2期介绍,世界主要纺织纤维销售量如下(万吨)┌──┬─────┬──┐│北美│欧洲 │日本││ ├──┬──┤ ││ │西欧│东欧│ │└──┴──┴──┴──┘一、所有纤维19751980198548500590。07 10。045500525。0600。0463。0565。0660。0157。0185。0220。0 480。01 135。0141一00二、棉197519801985::;:100一0155。0145。0]25。0250。0280。0300。073。088。0100。0567。0709。0775。0几”八U合纤维197519801985280一0393。5565。0180。0265。0375.0195。0100。017。0044066。O84。0154。0331。555…     

氨—二氧化碳—水的气液平衡

表1为(150Oe)时┌─────────┬──────┐│液相(摩尔/公斤水) │气相分压(巴)│├──┬──────┼──────┘│NH3 │CO: │└──┴──────┘总压(巴)528。367。382。625。105。104,824。292。782。792一74 2。20 1。49 1.分选 1。33 1。02 0,560 0 .315 1。10 0。709O。魂1324。119。430。28。14。3。41。白吕乳笋。31匕.5g。子8琪。734。12公821。762。913。033_91!。13l。03l。35 34。4 27。3 34。7 32。1 19。4 14。7 9。50 33。8 22。8 14。5表2为(100oC)时液相(摩尔/公斤水) 1 NH,气CO相分压(巴)总…     

世界各地区及各国不同品种的合纤生产量

单位:万吨长丝短丝计睛纶及改性、睛’纶. 苏联、东欧 西欧 美国 其它美洲各国 日本亚洲、非洲、大洋洲00 .1000。20 16。53 54。2 23。8 6.石 24。2 15。1716。5354。323。8 6。624。415。17计0。3140.5140。8锦纶 苏联、东欧 西欧 美国 其它美洲各国 日本亚洲、非洲、大洋洲28。3454。758。815.426。420.96 2。14 8。725。5 1。7 1 .5 0。86 30.48 63。4 84。3 17。1 27 .9’、21.82计204.6040.4245。0涤纶 苏联、东欧 西欧 美国. 其它美洲各国 日本 亚洲、非洲、大洋洲 9。436.366。216。419。918.322。032.369。7 8。624。615.4 31。4 6…     

侯德榜先生百年诞辰祭

百年复几许。追怀一何如。尔曾为我引路。我辈为尔高颂。面嘱方向德才。问语谆谆。相见恨晚手札存。万卷环球宗尔意。穿破束缚多年。后生受益启蒙。民族生产日蒸。 千古意。君知否。只斯须。要我勤俭办学。突闻多病。惊闻离去。能不失声。吐不尽之追怀。倾不完之哀思。业业兢兢。教我济学贯终生。代代相传。念侯老光辉伟功。 附记:先生福建人.关心后进。突来函招谈。爱才也。嘱注意国际风云。指方向也。原氨 碱法保密垄断.先生为之公布揭露。实为后人攻读开端。来郑工开校典礼挥毫﹃勤俭办校﹄四 字.言犹在耳.先生遗志。终生难忘。 一九九O…     

统计资料

工业发达国家化学工业产值(当年价格)(单位:亿类元)苏联①.}。本}联邦德国英国}法国}”““198419851986198719881 982.019了3。01 971。02 127。02 405。08 10。2840。3890。4922。2948。0 848。9 858。71 156.71 367。61 679。0495。0505。0645。0780。0857。0252.0263。0306。0369。0445。0236。0245。0307。0375。0428。0注:①包括石油加工行业在内,以亿卢布计。资料来源:《世界化学工业年鉴》,199。年版。工业发达国家化学工业投资(当年价格)(单位:亿美元)年份美国,。①卜。十!,,,二},’。妙杭}只’r一·。曰-犬曰法国}意大利 9。013。…     

日本陶瓷器产业概况

摘选“日本兵库县贸易株式会社”丰才料生产尸.种产量(1969年、1972年)品种单1 969197019711 972餐茶具公吨US份10001 33.6551 65.83841 3 .0 261 80,951137。715200。515461。1592 11。2‘11装饰品公f}屯US.100084 .60543。28482。1 991 7 .38983。05753。39486。50960。423瓷砖公吨US.IG00827。2751 18。575926.961135。860851。]54139。479888。581149、510卫生陶器96。2]836。1981 15.98245。3221 18。82354。3 191工8。58556。298l匕瓷1 10。98399。977131。9911 22、047130.390126。292128。571135。550它141。65328。290156、494…     

"胶乳法"氯化天然橡胶薄层干燥影响因素的研究

采用二次回归正交设计方法,对“胶乳法“氯化天然橡胶(CNR)进行薄层干燥试验.分析了热风温度、风速和物料的粒径等因素对干燥速率、干燥后物料性能的影响规律,确定了影响物料薄层干燥速率各因素的主次,提出了较佳的干燥工艺和合理的性能参数.     

微波干燥玉米籽粒的试验研究

针对玉米热风干燥中存在的问题。运用自制的微波干燥试验设备。采用不同的质量比功率和加热时间及配套的工艺流程。研究了玉米微波干燥特性及干燥条件对干燥品质、能耗的影响；分析了微渡干燥玉米过程中单位质量功耗、温度、平均失水速率与玉米籽粒发芽率、爆腰率和淀粉得率的关系；确定了影响微波干燥玉米的工艺参数和玉米微波干燥的合理工艺流程。研究结果表明：玉米微波干燥主要处于恒率干燥阶段，应用微波技术既能快速而经济地对玉米籽粒进行干燥，又能保持其种用价值，且有利于改善其品质。     

Single-droplet drying processes at varying environmental conditions

Abstract

Modeling and numerical simulations of the single-droplet drying process are commonly executed based on the assumption of constant boundary conditions. In this study, the validity of this assumption and its influence on the model prediction of the final particle morphology is investigated. Accordingly, numerical simulations of the single-droplet drying process were conducted at different drying conditions. Five boundary conditions were examined: (a) constant inlet drying air condition based on the most commonly used assumption, (b) varying drying conditions, (c) constant average drying conditions, (d) partially varying drying conditions whereby all drying conditions were changed apart from the droplet’s relative velocity, and (e) velocity varying condition whereby all the drying conditions were averaged apart from the relative velocity of the droplet. The boundary conditions for the last four cases were calculated using three-dimensional simulations of the spray drying process of the particles that possessed pure solvent properties. The final product morphologies have been examined, i.e., the morphologies of hollow or full porous particles as predicted by the simulations of the single-droplet drying process. It has been found that the variation of the drying boundary conditions had considerable influence on the droplet’s shrinking rate as well as on the efficiency of the process, while the dried particle morphology depended on its shell strength. The influence was more pronounced when the initial droplet diameter and its shell strength increased.     

Simulation of Temperature and Moisture Content Profiles in a Pinus radiata Board during High-Temperature Drying

A two-dimensional drying model has been simulated for industrial drying schedules to assess sensitivity of the model parameters. The predicted drying times and rates were similar to the results of experimental data. The influence of wood properties on the predicted drying rate was assessed. It was found that the effects of specific heat capacity and thermal conductivity on predicted overall drying rate of board were small. However, the effect of changes in the diffusion coefficient on drying rate below fiber saturation point (moisture content at 30%) was found to be significant.     

Influence of Atmospheric Sublimation and Evaporation on the Heat Pump Fluid Bed Drying of Bovine Intestines

Experiments on atmospheric two-stage fluidized bed drying of bovine intestines with heat pump were carried out. The investigation covers innovative fluidized bed heat pump drying of bovine intestines. The two-stage drying consists of atmospheric moisture sublimation immediately followed by evaporation. Studies were done to establish the influence of the drying condition on the drying characteristics and product quality of bovine intestines and properties focusing on kinetics, diffusion, and color. The investigation of the drying characteristics has been conducted during moisture removal by evaporation and combined sublimation and evaporation. The effect of drying temperature on the drying constants was determined by fitting the experimental data using regression analysis techniques. The investigation revealed that the drying kinetics is most significantly affected by temperature. Correlations expressing the drying constants and effective moisture diffusivity dependence on the drying conditions are reported.     

Simulation of Temperature and Moisture Content Profiles in a Pinus radiata Board during High-Temperature Drying

A two-dimensional drying model has been simulated for industrial drying schedules to assess sensitivity of the model parameters. The predicted drying times and rates were similar to the results of experimental data. The influence of wood properties on the predicted drying rate was assessed. It was found that the effects of specific heat capacity and thermal conductivity on predicted overall drying rate of board were small. However, the effect of changes in the diffusion coefficient on drying rate below fiber saturation point (moisture content at 30%) was found to be significant.     

Influence of Drying Conditions on the Hazelnut Quality. I. Lipid Oxidation

The influence of the drying conditions on the oxidation state of the lipidic fraction in hazelnut (Corylus avellana, L.) has been studied. Different hazelnut quality parameters (acidity index, KZI2 index, K270 index and oxidation stability) have been determined in unshelled and shelled hazelnuts dried under six drying air temperatures (30, 40, 50, 60, 70 and 80°). The drying experiments were done with forced air circulation, and two varieties of hazelnut were investigated, Negret and Pauetet. It has been observed that hydrolytic reactions affect dried Negret hazelnut, increasing with drying temperature. Also, drying temperatures higher than 50°C favour an increase of the rate of lipid oxidation in hazelnut, specially in shelled hazelnuts, with a decrease of the oxidation stability.     

KINETICS OF THE CLAY ROOFING TILE CONVECTION DRYING

Kinetics of the convection drying process of flat tile has been investigated experimentally in an industrial tunnel dryer. Several velocities of wet tile movement through the dryer were tested to obtain maximum allowable drying rate curve. As there are various models to describe the kinetics of convection drying, finding a model that would fairly well approximate the kinetics of the whole drying process was part of the research. Especially the polynomial and exponential models were tested.

It was found that exponential model of the type: B(t) = (a-B_e. EXP(-bt²) +B_et (-dB(t)/dt) = 2bt(B(t)-B_e significantly correlates the kinetics of the whole tile drying process.

Applying the maximum allowable drying rate curve obtained for flat tile in the first period of drying, a grapho-analytic model for the optimal conducting of the process has been developed.     

NUMERICAL SIMULATION OF INTERMITTENT AND CONTINUOUS DEEP-BED DRYING OF BIOLOGICAL MATERIALS

This paper presents a simulation study of dryers. A two-dimensional deep-bed drying model, which incorporates modifications in existing one-dimensional models, has been developed and has the capability of handling both non-uniform velocity profiles and material properties dependence on temperature and moisture content. A corn drying system was simulated in order to analyze its temporal and spatial drying behavior. Both intermittent and continuous drying were simulated. The results showed that continuous drying is more efficient than intermittent drying with respect to drying time. However, intermittent drying led to more uniform temperature and moisture distributions, which improve grain quality. The model can be easily extended to three-dimensional drying analysis.     

Some Considerations In Simulation Of Superheated Steam Drying Of Softwood Lumber

ABSTRACT

A mathematical model for high-temperature drying of softwood lumber with moist air has been modified and extended to simulate wood drying with superheated steam. In the simulation, differences between the two types of drying are considered, these include: external heat and mass transfer processes and calculation of equilibrium moisture content. The external mass transfer coefficient in the perheated steam drying was found to be much higher than that in the moist air drying, however, the heat ransfer coefficients for these two cases were of the same order. The predicted drying curves and wood temperatures from the superheated steam drying model were compared with experimental data and there was close agreement. Further studies will apply the model to development of commercial drying schedules for wood drying with superheated steam.