查询词典 acid process

Nsted acid ionic liquids were inactive for the alkylation of isobutane with butene.In contrast,the chloroaluminate ioni c liquids were very active for the alkylation.However,the qualities of the alkylate oils using chloroaluminate ionic liquids were unsatisfied and worse than that of the products in the industrial sulfuric acid process obviously.

发现：所制备Bronsted酸离子液体无催化烷基化反应活性；而氯铝酸离子液体则具有很高的催化烷基化反应活性，但所得烷基化油质量较差，明显低于工业硫酸法水平。

Study on the Crystallization Process of Labeled GL-7-ACA Acylase CA130 Complex 7β-bromoacetyl amino cephalosporanic acid (BA-7-ACA), an analog of glutaryl-7-amino cephalosporanic acid (GL-7-ACA), can inhibit and specifically alkylate GL-7-ACA acylase (CA130) from Pseudomonas sp. 130, forming a carbon-carbon bond between BA-7-ACA and the C-2 on indole ring of Trp-β4 residue of CA130.Here we reported that BA-7-ACA labeled CA130 (BA-C130) could self-catalyze the hydrolysis of BA-7-ACA during crystallization process. The hydrolysis was confirmed to be a reaction analogous to the one of GL-7-ACA by comparative MALDI-TOF (matrix-assisted laser desorption/ionization-time of flight) spectrometry analysis.

二、GL-7-AcA酰化酶CA130标记复合物的结晶过程研究溴乙酰氨基头孢烷酸（7β-bromoacetyl amino cephalosporanic acid，BA-7-ACA）作为戊二酰-7-氨基头孢烷酸（GL-7-ACA）的类似物，不仅能够抑制GL-7-ACA酰化酶CA130的活力，而且能通过在BA-7-ACA和CA130的β亚基第四位色氨酸吲哚环二位碳原子之间形成碳-碳共价键而将CA130特异的烷基化。

Barley coleoptile segments were used to study the interactions between 2, 4-epibrassinolide and indole-3-acetic acid in regulation of elongation process.

以大麦胚芽鞘为材料，研究了生长素吲哚乙酸(indole-3-acetic acid， IAA)和2，4-表油菜素内酯(2，4-epibrassinolide，epiBR)对胚芽鞘伸长的影响。

Pristine Li-Al LDHs are synthesized by hydrothermal process in different reaction conditions by varying the aging time for 1 and 24 hours. Both the Li-Al layered double hydroxides (abbreviated as Li-Al LDH1 and Li-Al LDH24 for aging time 1 hour and 24 hours, respectively) were modified by using sulphanilic acid sodium salt hydrate, modified agent to form modified Li-Al LDH1-SAS and Li-Al LDH24-SAS. The morphology of the pristine layered double hydroxides are investigated by using wide angle X-rays diffraction, scanning electron microscopy and particle size analyzer which indicates that the crystallinity and aspect ratio is increased with increasing the aging time from 1 hour to 24 hours. The particle size of Li-Al LDH24 and Li-Al LDH1 are found to be ~1000 nm and ~250 nm, respectively. Both the pristine and modified LDHs are characterized by XRD, FTIR spectra and thermogravimetric analysis.

本研究目的在於改变长晶时间的长短，合成出同径大小的Li-Al LDHs，再经由改质剂sulphanilic acid sodium salt hydrate将Li-Al LDHs无机层材表面有机官能化制备出改质型Li-Al LDHs-SAS，於是进一步藉由扫描式电子显微镜、射径仪和穿透式电子显微镜等仪器分别观察LDHs改质前和改质后其主层结构型态上的变化；从中可以发现Li-Al LDHs随著长晶时间的增加其径有随之增大的趋势，但经有机化改质后其径会由於改质环境的影响明显低许多，针对此现象本实验将未改质和改质后之Li-Al人工无机层材制备成复材进一步探讨其在热性质和难燃特性上的为表现。

With the starting material intermediate titanyl sulfate and meta-titanic acid of titanium white product by sulfuric acid process,the titanium dioxide and iron content have been determined.

以硫酸法钛白粉生产工艺中间体浓钛液和偏钛酸为原料，分析了浓钛液中二氧化钛和铁的含量。

A range of waterborne alkyd resins has been prepared by fatty acid process, based on soybean fatty acid, trimellitic anhydride, and various polyols and polybasic carboxylic acids, which are modified with benzoic acid, maleic anhydride and oleic acid.

通过脂肪酸法，选用豆油脂肪酸、偏苯三甲酸酐和不同的多元醇、多元酸制备了一系列水性醇酸树脂，用苯甲酸、顺丁烯二酸酐和油酸对其改性进行了研究。

We anticipate the demand of formaldehyde will up to 2,930,000 tons, and 1,320,000 tons of methanol will be consumed;② At present, the acetic acid mainly produced by food zymotechnics or ethane in our country, along with the development of synthesizing acetic acid process with methanol, the demand of methanol will increase rapidly.

预计2010年甲醛需求量将达到293万吨，届时消费甲醇达132万吨；②目前我国醋酸生产多采用粮食发酵法或乙烯法，随着甲醇羰基合成醋酸工艺的发展，对甲醇的需求将迅速增加。

Strawberry pomaces are the byproducts of brewing strawberry wine. In our previous study, a ellagic acid recovery process from the strawberry pomaces had well been established.

草莓粕是在榨草莓汁以酿制草莓酒时产生的副产物，先前已建立由草莓粕中回收鞣花酸(ellagic acid， EA)的方法。

The aim of this study, we try to simplify the EA recovery process from strawberry pomaces and evaluate the safety of products, ellagic acid concentrate, and ellagic acid standard by AMES test and L5178Y TK assay.

本研究目的为简化回收鞣花酸浓缩物之流程，并以安氏试验法及L5178Y TK分析法来评估鞣花酸标准品(Ellagic acid standard， EAS)，及鞣花酸浓缩物(Ellagic acid concentrate， EAC)的安全性。

A manufacturing method for a polarized light film is following: processing the material film (1) of the polyvinyl alcohol resin through the expanding sink (3) as a procedure, processing the material in the dipping sink (4) as a procedure, the dyeing procedure for the dyeing process in the dyeing sink (5) and continuous procedure for the boric acid process in the boric acid sink (6); and processing the single shaft extending for the polarized light film (9) in one procedure at least of the dyeing sink (5) and the boric acid sink (6), the invention processes the polyvinyl alcohol resin film in the direction of the mechanism in the dipping sink (4), which reaches the extending multiplying power above 1.0 fold and below 1.05 folds.

偏振光薄膜的制造方法，使聚乙烯醇系树脂的原料薄膜(1)按顺序通过在膨润槽(3)中的膨润处理工序、在水浸渍槽(4)中的水浸渍处理工序、在染色槽(5)中的染色处理工序以及在硼酸槽(6)中的硼酸处理工序连续进行处理，并且在染色槽(5)以及硼酸槽(6)中的至少一个工序中进行单轴拉伸制造偏振光薄膜(9)时，在水浸渍槽(4)中相对于机械方向处理聚乙烯醇系树脂薄膜，使拉伸倍率达到1倍以上并且在1.05倍以下。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。