Secondary contamination of lactobacillus would evidently increase the content of isoamyl alcohol and ethyl caprylate and decrease the content of ethyl aldehyde ( lower than that in normal beer). 乳酸菌的二次污染使啤酒中异戊醇、辛酸乙酯显著升高,使乙醛含量明显低于正常的啤酒。
The specifications of purified secondary alcohol could meet the requirements of detergent alcohol. 精制仲醇的各项性能指标达到了洗涤剂醇规格要求。
Methods 3-one-12-hydroxy-13,14-ene-andrographolide was synthesized in a three-step route, including protecting primary alcohol of andrographolide by trityl ether, oxidating secondary alcohol and removing protecting group, etc. 方法通过三苯甲醚保护伯醇、氧化仲醇、脱去保护基的方法,合成3酮基12羟基13,14烯穿心莲内酯。
Through primary distillation and secondary distillation, alcohol content in milk Kefir could reach 42% vol and the vaporizing temperature controlled between 40~ 70 ℃. 经一次蒸馏和二次蒸馏,奶酒的乙醇含量可达42%vol,蒸发温度控制在40~70℃之间;
100% Secondary caprylic alcohol is used for tantalum extraction organization. 而提钽有机则采用100%的仲辛醇。
The Character of Resin Direct Hydration Method on producing Secondary Butyl Alcohol along with the Technical and Economical Analysis 树脂直接水合法制仲丁醇特点及技术经济分析
Application of the Technique of Secondary Anaerobic Reactor Coupled with Oxidation Channel in the Treatment of Waste water in Potato Alcohol Production 二级厌氧+氧化沟工艺治理薯类酒精糟液
The article described the manufacturing process and listed chemical characteristics and physical properties of secondary alcohol ethoxy ˉ late ( SAE). 详细论述了仲醇乙氧基化物(SAE)的生产工艺,并说明了其化学特性及物理性质。
Resin direct hydration method is the procedure that butylenes which is in super-critical status reacts with water to produce secondary butyl alcohol with the catalyst of acid cation exchange resin. 树脂直接水合法是以固体酸性阳离子交换树脂作催化剂,以丁烯在超临界状态下与水反应生成仲丁醇。
The Structural Analysis for Secondary Alcohol Ethylene Oxide Adducts 仲醇氧乙烯加合物的分离与结构分析
Effect of Secondary Butyl Alcohol Content on Synthesizing Secondary Butyl Alcohol from Methyl Ethyl Ketone by Direct Hydrated Method 仲丁醇含量对正丁烯直接水合法制仲丁醇的影响
The structure of amyl alcohol affects both the initial reaction rate and the ultimate yield of amyl n caprylate in the following sequence: primary alcohol> secondary alcohol> tertiary alcohol. 醇结构对MIECC有影响,在反应初速率及平衡产率方面均遵循伯醇>仲醇>叔醇的规律。
Secondary caprylic alcohol is used to carry on sludge extraction on adjusting acid liquor of the low grade tantalum and niobium minerals. 采用70%的仲辛醇对低品位钽铌矿的调酸液进行矿浆萃取。
Study of the Catalytic Activity of Liquid Phase Dehydrogenation of Secondary Alcohol on Ni-Ultrafine Particle Catalyst 镍超细粒子催化二级醇液相脱氢反应的活性研究
The density and viscosity of diluted secondary caprylic alcohol decrease and phases separate quickly when sludge is extracted, producing wttle "black slag" and entrapment of two phases form eath other. 稀释后的仲辛醇密度、粘度降低,矿萃时分相快,产生黑渣少,两相相互夹带少。
NAF is a new type of selective aryloxy-piperazines α 1A, D-AR antagonist, and its formula contained the structure of chiral secondary alcohol, so it has a pair of optical enantiomers. NAF是一种新型的选择性芳氧基哌嗪类α1A,D-AR拮抗剂,其结构式中含有手性仲醇结构,具有一对光学对映体。
In the process, secondary butyl alcohol was hydrogen donor as well as solvent, Pd/ CNTs was catalyst, and sodium hydroxide was assistant catalyst. 本文研究了一种新的多相催化转移加氢体系,以仲丁醇为氢给予体同时也作为溶剂,Pd/CNTs为催化剂,氢氧化钠为助催化剂。
Among various methods to synthesize optically active propargylic alcohols, the asymmetric alkynylation of aldehydes is particularly useful because it simultaneously forms a carbon-carbon bond and a chiral secondary alcohol center in one single step. 在众多合成手性丙炔醇的方法中,端基炔对醛的不对称加成是在形成碳-碳键的同时生成一个手性二级碳中心,相较于其它方法有着显著的优势。
Reuse process of marsh liquid could prevent secondary pollution from the biological treatment of the alcohol distillation waste liquid. It could save plenty of water resources. 采用沼液回用工艺可以避免酒精蒸馏废液进行生物处理后的二次污染,并可以节约大量的水资源。