• Thus, there was a 50% conversion of cyclohexane to adipic acid in a single step oxidation, which represented the best result from this present study.

    因此50 %转换环己烷合成己二单一步骤氧化最好结果本研究。

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  • Aconitase 2 (ACO2) catalyzes the conversion of citrate to isocitrate via cis-aconitate in the second step of the tricarboxylic acid (TCA) cycle (1, 2).

    乌头酸酶2 (ACO2)在三羧酸循环第二步骤催化柠檬酸顺乌头生成异柠檬酸的异构化(1,2)。

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  • Screening for 2 - bromo-butyric acid as the starting material, after ammonolysis, esterification, ester amine solution, split, five-step cyclization reaction Levetiracetam.

    筛选2-代丁酸起始原料氨解,酯化拆分,环合五步反应制得左乙拉西坦。

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  • Hydrolysis is an important step for bioconversion of woody biomass to ethanol. Hydrolysis technology includes dilute acid hydrolysis, concentrated acid hydrolysis and enzymatic hydrolysis.

    水解利用木质生物资源以生物转化法制取乙醇重要步骤,水解技术主要包括水解、酸水解水解。

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  • Genotypic differences of phosphorus(P) efficiency among 194 Brassica napus L. cultivars were investigated under pot culture in acid soil with a method of two step screening typical cultivars.

    采用筛选(即苗期干物质筛选全生育期产量筛选)酸性黄棕壤上对194个甘蓝型油菜品种进行了效率筛选。

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  • The Third Step (Acid Wash) is to remove free iron, metallic residues, oxides, and other corrosion products from the surface of the metal.

    第三(酸洗):去除金属表面自由离子金属残渣氧化物其他腐蚀产物

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  • Acid cleaning techniques and improved processes were carried out and the defect quantity was decreased step by step.

    最后采取了盐酸清洗工艺改进制备工艺措施逐步降低了多腔诱导透射滤光片的缺陷数量

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  • Using senecioic acid and definite alcohol such as methanol or other alcohols as raw materials in the presence of phosphorus oxychloride as catalyst, corresponding ester can be synthesized by one step.

    异戊烯甲醇醇类原料三氯催化下一步合成相应酯类

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  • Laboratory test results show that the use of a calcining and double step hydrochloride acid leaching technique can satisfyingly do it.

    实验结果表明采用煅烧二次工艺按照上述要求有效地调整高岭土的成分。

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  • The technology of one step synthesis of terpinyl acetate from turpentine and glacial acetic acid is described.

    论述了松节油乙酸一步法合成乙酸松油工艺

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  • The new process of preparing glycol polyglucoside by starch and glycol in the presence of an acid catalyst and a catalyst promoter through one step reaction has been studied.

    研究淀粉乙二醇酸性催化剂催化剂存在下一步直接合成乙二醇葡萄糖苷工艺,考察了影响反应和产品性能的多种因素。

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  • Prepared copper sulfate, sponge cadmium and zinc sulfate from abandoned mash of zincmaking plants following the step of oxidization, soaking in acid, neutralization sedimentation, replacement, etc

    研究了以炼锌厂废泥原料,经氧化中和沉淀、稀硫酸溶解、置换步骤制取硫酸铜、海绵硫酸锌工艺。

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  • Polyoxytertramethylene (PTMG) is synthetized in one step using heteropoly acid as catalyst. We discussed the factors which influenced the yield of PTMG.

    杂多酸催化剂一步合成聚四亚甲基醚醇(PTMG),对影响聚四亚甲基醚醇单程收率的各因素进行了讨论

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  • Therefore, the aim of deferrization and leaching under low acid together with one step can be realized.

    从而实现净化除铁浸出一步完成目的

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  • Methods The concentration of chlorine dioxide was determined by propandioic acid-iodometry and five-step iodometry.

    方法采用丙二酸量法碘量法测定二氧化氯含量,采用悬液定量杀菌试验方法进行杀菌效果评价。

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  • A two-step acid-catalyzed process for the preparation of biodiesel was carried out with cottonseed acid oil and methanol as the raw materials.

    棉籽酸化甲醇原料,采用催化两步法制备生物柴油。

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  • Methods: the basic fuchsin method used to show the anoxic cardiac muscle was modified by prolonging the hematoxylin staining time and adding a step of hydrochloric acid alcohol differentiation.

    方法改进显示缺氧心肌碱性复红,即延长苏木染色时间增加盐酸酒精分化步骤

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  • The new water stabiliser TJ -302, a compound containing phosphonic acid, is synthetized in water phase with main materials, of maleic anhydride, acrylic acid and phosphate by one step.

    以马来酸酐丙烯酸含磷化合物主要原料相中一步合成出膦马-多元共聚物TJ-302;

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  • It is pointed out that the one-step process catalyzed by solid acid catalysts will become the focus of research works for terpinyl acetate synthesis.

    指出了采用固体催化剂一步合成乙酸松油是今后研究工作重点

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  • By applying two-step method and orthogonal experiment method, the optimum operation condition for synthesizing sulfonic acid series Gemini surfactant was obtained.

    运用步法正交试验得出磺酸双子表面活性剂合成优化条件

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  • In this study, N-methylene phosphonic chitosan (NPCS) was synthesized via formaldehyde addition and condensation with phosphoric acid in a step reaction.

    甲醛磷酸为反应试剂,采用均相反应法制备出聚糖(CS)的磷酸化衍生物-甲基磷酸化壳聚糖(NPCS)。

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  • Aluminium hydroxide with 99.99% of purity was obtained by two-step purifying aluminium sulfate solution made from aluminium hydroxide and sulfuric acid with industry purity.

    工业氢氧化铝硫酸为原料,采用两步纯化溶液法制得了纯度为99.99%氢氧化铝粉。

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  • Two-step catalyzed process was adopted to prepare biodiesel from Soybean oil with high acid value.

    采用两步法催化豆油制备生物柴油

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  • Abstract: in this paper, a two-step method for purifying non-concentrated wet-process phosphoric acid was developed.

    文摘采用两步法对未经浓缩的湿法磷酸进行净化研究。

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  • The formation of methanol is retrained to a large extent and the formation of ethanol and acetic acid are improved to a certain degree in the first step of the reaction with water.

    反应一步通入很大程度上抑制了甲醇生成一定程度上促进乙醇乙酸的产生。

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  • To research removal effect of free fatty acid in separation process, two-step separation method was adopted in supercritical CO2 extraction of sea buckthorn oil.

    沙棘超临界CO_2萃取试验采用两级分离方法研究效果

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  • To research removal effect of free fatty acid in separation process, two-step separation method was adopted in supercritical CO2 extraction of sea buckthorn oil.

    沙棘超临界CO_2萃取试验采用两级分离方法研究效果

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