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蒸馏温度
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  distillation temperature
     At the second stage, the appropriate process conditions for the purification were: distillation temperature 210~220℃, system pressure 10~(-3) mBar, feed rate 7~9 ml/min, and agitating speed 300 r/min.
     第二级分离条件为:蒸馏温度210~220℃,系统压力10~(-3) mBar,进料流速7~9 ml/min,刮板转速300 r/min。
短句来源
     The technics of MD was as following: pressure 0.1 Pa, input flux 1.5~2.0g/min, distillation temperature 160℃.
     分子蒸馏分离工艺:真空度0.1Pa,进料量30D/min(1.5-2.0g/min),蒸馏温度160℃。
短句来源
     At the first stage, suitable operation conditions were as follows: distillation temperature 160~165℃, system pressure 0.17 mbar, feed rate 10~12 ml/min, agitating speed 300 r/min.
     试验采用多级操作方式,第一级分离条件为:蒸馏温度160~165℃,系统压力0.17 mbar,进料流速10~12 ml/min,刮板转速300 r/min;
短句来源
     1, the first stage distillation pressure of 400Pa and the second stage of 15Pa, distillation temperature of 150℃ for both stages and the rotating speed of the scraping plank in the molecular distillation apparatus of 150r?
     1,进料温度为100℃,蒸馏温度为150℃,第一次蒸馏的压力为400Pa,第二次蒸馏的压力为15Pa,刮板转速为150r?
短句来源
     Under the conditions of distillation temperature 70℃, vacuum 0.1MPa, distillate volume 25 %(volume part), distillate pH value 6.0, the distillate has the best anti-microbial functions,which are superior to those of bamboo-vinegar liquor.
     优化该馏分的制备工艺,在蒸馏温度70℃、真空度0.1MPa下,调节竹醋液pH值为6.0,预蒸出原液体积25%、再将剩余液pH值调至竹醋液原值,蒸馏得到50%原液体积的馏分,此馏分抑菌效果最佳,其各项抑菌指标均优于竹醋液原液。
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  distilling temperature
     distilling temperature: 140℃;
     蒸馏温度 :140℃ ;
短句来源
     The optimal processing parameter of vacuum aided distilling system for removal of mercury in waste Zn-Mn batteries is distilling temperature 500~600 ℃,distilling time 60~80 min,system pressure 3000~7000 Pa.
     寻找去除汞的最优工艺条件。 根据实验结果,使用真空蒸馏的方法处理锌锰电池优化的工艺参数为:蒸馏温度500~600℃,蒸馏时间60~80 m in,系统压强3000~7000 Pa。
短句来源
     The conditions for MD can be defined as follows: distilling temperature,60℃; vacuum degree,800Pa; rotational speed,250r/min;
     初步确定分子蒸馏的工艺参数为蒸馏温度60℃、真空度800Pa、转速250 r/m in、受热时间2h
短句来源
     When the system pressure is 3 Pa, the Cd content in the recycled condensate is decreasing with the increasing of distilling temperature.
     在系统压力为 3Pa时 ,随着蒸馏温度的升高 ,回收到冷凝物中的镉元素的百分含量呈降低趋势。
短句来源
     Influence of distilling temperature and distilling vacuum degree on the purification were studied systematically for first time. The results of DORRD showed that optimum distilling temperature was 176癈, optimum distilling vacuum degree was 1.3Torr in the first MD, and the octacosanol content increased to 28.2%.
     5.首次系统研究了分子蒸馏温度和真空度对高碳脂肪醇精制效果的影响,采用DORRD,确定最佳的一级蒸馏参数为:温度176℃,真空度1.3Torr,产物中二十八烷醇的含量为28.2%。
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  “蒸馏温度”译为未确定词的双语例句
     The temperature range of molecular distillation was 80~120 ℃.
     分子蒸馏温度为80~120℃;
短句来源
     and under the temperature of 190℃,the contents of octacosanol and(triacontanol) in distillate increased as the pressure decreased between 26.7 Pa and 266.7 Pa,and reached the highest at 133.3 Pa.
     蒸馏温度190℃,蒸馏压力在26.7~266.7 Pa范围内,随着压力的下降,馏出物中的二十八烷醇和三十烷醇含量增加,到133.3 Pa处分别达到最大值。
短句来源
     The industial experiment shows that under the conditions of 900℃,8h and 40Pa in furnace when the disposal capability is 1200kg per furnace,the zinc content is over 99.9% in zinc metal and the tin content is over 85% in tin metal.
     工业试验表明,控制蒸馏温度900℃,时间8 h,处理量1200 kg,炉内残压40 Pa,可以得到99.9%的金属锌和85%的金属锡。
短句来源
     On the condition that the temperature is 900-950℃,the time 15-20 min,the residual pressure 30-45 Pa ,and the melt depth 4-5.4 mm,the bismuth evapora- tion rate is more than 99%with the silver content in condensate being 68-170 ppm and the residue 45%-60%Ag by one stage vacuum distillation of crude bismuth containing 1.63%Ag.
     在蒸馏温度900~950℃,时间15~20min,系统残压38~45Pa,熔体深度4~5.4mm条件下,一级真空蒸馏含Ag1.63%的粗铋时铋挥发率在99%以上,冷凝物中银含量为68~170ppm,银在残留物中含量达45%~60%。
短句来源
     Purity above 95% and the yield above 50% of L-lactic acid can be gained at the pressure and temperature range of 0.1 Pa and 55-75 degrees centigrade with agitation speed of 110-140 r/min.
     在操作系统压力为0.1 Pa时,蒸馏温度在55~75℃的范围,刮膜转速在110~140 r/min时,L-乳酸纯度可大于95%,收率在50%以上。
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  distillation temperature
Simple relationships of permeate flux, total heating or cooling load and thermal efficiency of AGMD with respect to the membrane distillation temperature difference are obtained.
      
In the experimental study, the experiments were conducted using 1m PTFE membrane with a membrane distillation temperature difference up to 55°C.
      
The antioxidant activity of the molecular distillate fractions of both the carrot oil and the mixture of pure tocopherol and carotene showed a maximum around a distillation temperature of 190° under the conditions of the experiment.
      
In the distillation of the specific structured lipid product mixture, distillation temperature and time were the main factors to determine the degree of acyl migration and the extent of separation of free fatty acids.
      
In order to reduce the distillation temperature, vacuum should be made as low as possible with more effective pumps.
      
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There are some technical problems in the synthsis of M.N.A.: (1) The end-point of reaction: the heat of reaction is utilized forthe indicating-scale. (2) Making the product either liquid or semi-solid, The presence oftrace solvent in the M.N.A. product is the main factor, the liquid or ?emi-solid form depends on the sweeping with or without nitrogen(orair). (3) The colour of product depends on the temp. of vaccum distil-lation: If the temp. is over 100℃, it turns to yellow, and above 130℃the colour will become...

There are some technical problems in the synthsis of M.N.A.: (1) The end-point of reaction: the heat of reaction is utilized forthe indicating-scale. (2) Making the product either liquid or semi-solid, The presence oftrace solvent in the M.N.A. product is the main factor, the liquid or ?emi-solid form depends on the sweeping with or without nitrogen(orair). (3) The colour of product depends on the temp. of vaccum distil-lation: If the temp. is over 100℃, it turns to yellow, and above 130℃the colour will become brown. Because of trace methyl-cyclopenta-diene(dimer) in the heating, it turns to brown resin by acidic catalysis.

本文阐述并解决了合成M、N、A、液体酸酐固化剂中一些工艺技术上的问题。(1)反应的终点:利用反应热,以反应温度的上升作指标来控制。(2)使产品为液态或半固态:M、N、A、产品中的微量溶剂是决定产品液态或半固态的主要因素,在减压蒸馏中用与不用氮气(或空气吹扫)是决定产品为液态或半固态的关键。(3)产品的颜色决定于减压蒸馏的温度,如超过100℃则产品变黄,超过130℃则变为棕色。乃因产品中微量甲基环戈二烯(二聚体)在加热中受酸催化作用变为棕色树脂状物,

The resin acid fractions of Oleoresin of Pinus mossoniana consist of pimaric acid, sandaracopimaric acid, isopimeric acid, levcpimaric acid, plustric acid, abietic acid, neoabietic acid and dehydroabietic acid. During processing of the Oleoresin, the acids of pimaric acid type do not change verg much, while the acids of abietic type undergo a lot of changes. When the gum rosin is processed at temperatures between 140℃ and 200℃. there is a gradual decrease in levopimaric acid, while the plustric, neoabietic and...

The resin acid fractions of Oleoresin of Pinus mossoniana consist of pimaric acid, sandaracopimaric acid, isopimeric acid, levcpimaric acid, plustric acid, abietic acid, neoabietic acid and dehydroabietic acid. During processing of the Oleoresin, the acids of pimaric acid type do not change verg much, while the acids of abietic type undergo a lot of changes. When the gum rosin is processed at temperatures between 140℃ and 200℃. there is a gradual decrease in levopimaric acid, while the plustric, neoabietic and abietic acids continue to increase. In the cooling process of rosin, the acids of abietic acid type continue to isomerize, and plustric acid and neoabietic acid decrease gradually, with the result that the content of abietic acid increases steadily from beginning fo. end.This shows the objective law cf isomerization of resin acids for the oleoresin of Pinus mossoniana under the existing processing conditions.

马尾松松脂的树脂酸部分包括:海松酸,山达海松酸,异海松酸,左旋海松酸,长叶松酸,枞酸,新枞酸和脱氢枞酸。松脂在加工过程中、海松酸型酸变化不大,枞酸型酸则发生较大的变化。在140°—200℃煮炼松香时,左旋海松酸不断减少,长叶松酸,新枞酸和枞酸不断增加。在松香冷却过程中,枞酸型酸继续异构化,长叶松酸和新枞酸逐渐减少而导致枞酸自始至终不断增加,这是马尾松松脂在现有生产工艺条件下树脂酸异构变化的客观规律。 利用树脂酸的异构规律,树脂酸组成与比旋值和结晶趋势的关系,控制松脂蒸馏(温度和时间)和冷却的工艺条件,可以得到比旋值在适宜范围内,结晶趋势最低的优质松香。松香的比旋值是松香结晶趋势的有效指标。以福建尤溪松香为例,长叶松酸与枞酸含量比在1:1.5~1.8时,比旋值+4°~+12°,结晶趋势接近于0%。各地松香均有一结晶趋势最低和最佳比旋值范围。 防止松香结晶现象,除了控制树脂酸组成的主要内因外,尚须注意外界气温、晶种、水份、添香、震动等引起松香结晶的外在因素。

In this paper, a series of liquid distilling aids added to the final high vacuum distillation of synthetic Vanillin have been tested according to the principle of special rectification We find that a favourable selection of liquid distilli-ng aids capable of distilling with the Vanillin at a temperature low enough can eliminate the degradation and polymerization of Vanillin. Distillation losses could thus be minimized and a higher yield obtained.

本文根据特殊蒸馏原理,对合成香兰素精制过程中的蒸馏,在高真空下,选择适宜的助蒸剂,降低蒸馏温度,减少香兰素的降解和聚合损失,提高香兰素收率。

 
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