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This method is reproducible and simple and thus can be readily scaled up for industrial production.
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Until now, however, industrial production of PHAs has encountered only limited success.
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Effects of reaction time, temperature, solvents, catalysts and feeding molar ratio on the yield and quality of products were investigated, and an improved procedure suitable for industrial production was established.
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Carbon-based solid phase containing open and closed multiwalled carbon nanotubes (up to 5% of the total carbon) was found in the waste from industrial production of metallic lithium by electrolysis of lithium chloride melt with graphite electrodes.
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The other technique leans upon the traditional technology commonly adopted in an industrial production of the above chloramines and includes, in addition to the earlier existing steps, a step we proposed for purifying waste water.
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| | From the point of nutrition physiology, the propration abount Saturated, Unsaturated and Poly-unsaturated fatty acid in the edible oil should be 1:1:1 at the developing country, Acceding to this,the paper introduces one kind of methods using gas chromo-tography and microcomputer to research the best ingredient of the compound oil,it can quickly and optimally choose several ingredi ent schemes for deciding and satisfying the industrial production, so it will be rather useful. | | 从营养生理的观点出发,发展中国家膳食油脂中饱和、单不饱和、多不饱和脂肪酸的比例应为1:1:1.据此,本文介绍了一种利用气相色谱和微机联用研究调合油最佳配比的方法,它能从多种条件中,迅速优选出若干配比方案供决策,以满足工业化的生产,具有很大的实用价值. | | 文摘来源 | | This paper aims at the bioconversion of L-sorbose.It was found from experiments that the reaction rate is zero order with respect to the L-sorbose in the middle stage of fermentation process. L-sorbose has inhibitory effect to the reaction.A quantitative relation of initial L-sorbose concentration to 2KGA yield has been established.At fixed tempratures,the main parameters affecting fermentation process are dissolved oxygen concentration and pH.A relationship between dissolved oxygen and 2kGA yield has been ... | | 本文对山梨糖的生物转化反应进行了研究,结果表明在产酸中期,该氧化反应为零级,即2—酮基—L—古龙酸的生成速率和山梨糖的消耗速率与山梨糖的浓度无关。山梨糖对该反应有抑制作用。由实验获得了山梨糖初始浓度与收率的定量关系。在固定温度下影响反应过程的主要参数为溶氧浓度和 pH 值。通过实验,建立了溶氧浓度与发酵收率的关联式,它可作为发酵缶放大的依据。同时,获得了保证最大收率的较优 pH 序列。把这些实验结果应用于生产中,取得了良好的效果。加料方式的观察表明,流加或批补加山梨糖均能提高产物浓度,其关键是要有高浓度山梨糖。 | | 文摘来源 | | In order to meet the need of fat processing industry of our country for hydrogenated cutalysts and change the dependence on expensive and unstable in providing imported catalysts the author of the paper developed a set of catalysts, named KD. The manufacture and study of the catalysts in a labo-ratory, the determination of hydrogenation characteristics of the products and their comparision with those of imported c(?)talysts, enlargement test of catalyst manufacture, determination of hydrogenation characteri... | | 为满足我国的油脂加工工业对氢化催化剂的需求,改变对价格昂贵,供应不稳定的进口催化剂的依赖,作者研制成功了KD系列催化剂。经实验室规模催化剂制备研究,产品加氢性能与进口催化剂的对比测定,催化剂制备的放大试验,及放大样品按工业条件下的加氢性能同进口催化剂的对比测定,及加氢产品的成份分析,固体脂肪指数的测定,催化剂的重复使用性和过滤性试验,表明KD系列催化剂的各种性能,均达到工业生产的要求,与进口产品的水平相当,达到国外产品水平。 | | 文摘来源 | |   | | << 更多相关文摘 |
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