酸性水解
- 名acidic hydrolysis
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水胺硫磷工业废水的酸性水解处理研究ACE工艺用于氮肥生产企业废水处理工程
Study on acidic hydrolysis of wastewater from commercial manufacture of isocarbophos Application of ACE Process to Nitrogen Fertilizer Industry Wastewater Treatment
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然后经酸性水解得苯丙氨酸消旋体。
After acidic hydrolysis , phenylalanine was obtained with total yield of 62.5 % .
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采用酸碱滴定法测定了甘油三乙酯酸性水解的总速率常数k。
Total rate constants k of acidity hydrolysis of glycerol triacetate were determined by acid alkali titration .
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但酸性水解时温度、溶剂对其ee值影响很大。
Both temperature and solvent had great influence on ee under acid condition .
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山梨酸聚酯酸性水解过程中HCl吸收工艺技术改造
Technological transformation of HCl absorption craft in acidic hydrolisis process of sorbic acid polyester
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最后采用氯硝柳胺粗品与有机胺成盐继酸性水解精制产品,通过HPLC内标法测定其纯度达99%以上,符合医药级标准,回收率高达≥97%,产品质量稳定。
Finally , good results were obtained with above 99 % product purity by HPLC and more than 97 % recovery through purification of the crude with some organic amines . grade .
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硫代草酸铁(Ⅲ)配合物的酸性水解动力学
Kinetics of the acid hydrolysis of ( thiooxalato-o , s ) ferric complex
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计算机求解氰乙基醋酸纤维素酸性水解动力学参数
Computer aid to calculate the kinetic parameters of the acid hydrolysis of cyanoethyl cellulose acetate
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本文详细地研究了以玉米淀粉为原料,经酸性水解,硝酸氧化制造草酸的新方法。
This paper deals with a new process for making Oxalic acid from corn starch in detail .
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通过酸性水解获得低分子量壳聚糖,并和银离子配位制备出低分子量壳聚糖银配合物。
Water-soluble low molecular weight chitosan was achieved from acidic hydrolysis method and its silver complex was alse prepared .
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香薷酮缩氨脲酸性水解时的副反应&香薷酮吖嗪的分离与结构鉴定
A side reaction in the acid-catalyzed hydrolysis of elsholtzione semicarbazone & the isolation and structure proof of Elsholtzia ketazine
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我们通过选择性降解可行性材料,使得纤维素纤维酸性水解,从而产生高度结晶状的微粒。
Acid hydrolysis of cellulose fibers yields highly crystalline rod like particles through selective degradation of the more accessible material .
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利用酸性水解乙醇沉淀法提取果胶,分别测定了不同的浸泡时间、酸碱度及水解温度对果胶产率的影响。
Pectin of orange bark was extracted by acid hydrolysis ethanol precipitation at different marinating time , pH and temperature conditions .
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铁-草酸配合物光解降解对氯苯酚的研究硫代草酸铁(Ⅲ)配合物的酸性水解动力学
Study of degradation of p-chlorophenol induced by photolysis of fe (ⅲ) - oxalic acid complexes kinetics of the acid hydrolysis of ( thiooxalato-o , s ) ferric complex
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氯乙酸和硫脲在乙醇中反应环合成2-亚氨基-4-噻唑酮盐酸盐,然后经酸性水解得到2,4-噻唑二酮,总收率为67.8%。
Thiazolidinedione was synthesized from chloroacetic acid and thiourea via cyclization in ethanol to give 2-imino-4-thiazolidinone hydrochloride followed by acid hydrolysis in an overall yield of 67.8 % .
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在用蛋白质酸性水解制备氨基酸时,因中和残留的酸会使水解液中带入大量的盐。
In the preparation of amino acids through acidic hydrolysis of proteins , high concentration of salt is introduced into the hydrolysate when the residual acid is neutralized .
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本论文分为五个部分,报道了在对甲基苯磺酸催化下季戊四醇缩醛(酮)化合物的合成、表征及酸性水解性能的研究。
The thesis contains five parts , which reports that the synthesis , characterization and acid hydrolytic property of pentaerythritol acetals ( ketals ) with the catalysis of p-toluene sulfonic acid .
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咪唑和氯乙酸乙酯通过非均相反应合成咪唑乙酸乙酯,酸性水解得到咪唑乙酸盐酸盐,和三氯化磷、磷酸反应后再水解制得唑来膦酸。原料价廉易得,操作简便,反应总收率36%。
Zoledronic acid was synthesized from imidazole and ethyl chloroacetate by heterogeneous reaction and hydrolysis to give imidazol-1-acetic acid hydrochloride which reacted with phosphorus trichloride and phosphoric acid followed by hydrolysis with an overall yield of 36 % .
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染料在纯棉织物上的应用采用先轧染、汽蒸,再酸性水解成隐色体和氧化固着的方法。
The dyeing on cotton was conducted by padding and steaming , then by hydrolysis of the dye to the leuco form in acidic medium , and finally by oxidation of the leuco form to the corresponding oxidized form with peroxide .
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磷酸+酸性蛋白酶水解副产物复合蛋白效果最佳。
Effects of byproducts compound after phosphorus plus enzyme hydrolyzing were optimum .
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中性蛋白酶和酸性蛋白酶水解鲢鱼蛋白的研究
Studies on hydrolyzing protein of silver carp with neutral protease and acid protease peptic hydrolysis
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氯化铁酸性溶液升温水解中相转化规律
The Rules of Phase-Transformation on the Hydrolysis of Acidic Ferric Chloride Solution
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研究了它们在酸性介质中水解反应机理。
In the paper is studied the mechanism of hydrolysis reaction in acidic medium .
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对碱性蛋白酶和酸性蛋白酶联合水解菜籽粕进行了研究。
The united hydrolysis of rapeseed meal with acidic protease and alkali protease was investigated .
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胃蛋白酶广泛存在于脊椎动物胃液中,是一种能在酸性环境下水解多种蛋白质的蛋白水解酶。
Pepsin is wildly presented in gastric juice of vertebrates and can hydrolysis various proteins in the acidic environment .
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而后再将α、β分别在酸性条件下水解,得到目的产品,收率分别为94%和91%。
The α and β anomers were isolated and then hydrolyzed under acidic condition to afford the desired products in 94 % and 91 % yields , respectively .
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在常见的微生物发酵法生产的蛋白酶中,酸性蛋白酶的水解作用能显著提高棉子蛋白的起泡性能。
In the common proteolytic enzymes made with the method of microbe fermentation , the hydrolysis of acid proteolytic enzyme is very effective in improving the foaming Property of cottonseed protein .
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水解脱羧反应:β-酮酸酯在酸性条件下水解生成β-酮酸,β-酮酸脱羧,即得产品2-甲氧基-4'-三氟甲基苯乙酮。
Hydrolysis and decarboxylation reaction : In acid condition , the β - carbonyl carboxylic ester was hydrolyzed to give β - carbonyl carboxylic acid , and the β - carbonyl carboxylic acid was decarboxylated to give 2-methoxy-4 ' - trifluoromethyl acetophenone .
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研究结果表明:(1)红花黄不易被酸和碱水解,栀子黄易在碱性条件下水解;红米红易在酸性条件下水解。
The major results were shown in the following : ( 1 ) Saffron yellow was difficult to be hydrolyzed by acid and alkali , whereas Gardenia yellow and red rice pigment were easy to be hydrolyzed under alkaline and acidic conditions , respectively .
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该酶在酸性范围内有水解蛋白活性,最适作用pH为4.0,最适温度为37℃。
The enzyme had an acidic proteolytic activity profile with the optimum pH of 4.0 . The optimum temperature of the enzyme activity was 37 ℃ .