沉澱劑 的英文怎麼說
中文拼音 [chéndiànjì]
沉澱劑
英文
precipitant-
The activation energies of crystal growth were calculated to be 15. 9kj mol " 1 and 148. 7kj mol " 1 respectively. cerous nitrate as originating material, ammonium hydrogen carbonate as precipitator, nanocrystalline cec > 2 powders were prepared by precipitation process. during the experiment, reacting solution was heated by microwave energy
採用碳酸氫銨作為沉澱劑，聚乙二醇等表面活性劑為保護劑，採用逐滴加入沉澱劑，微波加熱代替傳統加熱的均相沉澱法，制備出了粒度小、分散性好的ceo _ 2納米粉體。Ball mill, classifier, gravity separator, hammer mill, heavy metal recovery equipment, magnetic separator, solvent distiller
球磨機、分類機、沉澱分離機、錘磨機、重金屬回收設備、磁性分離機、溶劑蒸餾機It can be antifogging agent in harbors, dust collection agent of road surface, fire - proofing agent of fabrics, protective agent and fining agent of aluminum and magnesium metallurgy, precipitant for lake pigments, raw materials for de - ink of waste paper and calcium salt
用作港口的消霧劑和路面集塵劑織物防火劑。用作鋁鎂冶金的保護劑精煉劑。生產色淀顏料的沉澱劑。Proceed from the present situation of nanometer tio2 powder industry in our country, confront more problems in preparation of nanometer tio2. on the base of analyzing advantages and disadvantages of existing every methods, neutralization precipitation method is adopted, using self - prepare tioso4 solution as raw material, soda as precipitant to precipitate titanous hydroxide precipitation, then obtained anatase nanometer titanium dioxide after heat treatment
從我國發展納米tio _ 2粉體產業的現狀出發，針對納米tio _ 2制備中現存的問題，我們在綜合分析對比了現有各種方法優缺點的基礎上，採用中和沉澱法，以自制的tioso _ 4為原料，碳酸鈉作沉澱劑沉澱出ti （ oh ） _ 4沉澱，經熱處理得到銳鈦型納米tio _ 2粉體。Zno nano - particles was made from precursor zn ( ac ) 2. 2h2o through the method of sol - gel. the parameters for achieving the optimum technological conditions in making zno nano - particles were obtained by carefully observing the precursor concentration, amount of solvent and precipitants, the temperature on each stages and the behavior of reactors
在制備過程中，研究了主鹽濃度、溶劑用量、沉澱劑用量、反應各階段的工藝溫度，以及反應器等因素對實驗結果的影響，得出了制備zno納米微粒的最佳工藝參數。Moreover, the quenching concentration of eu is raised. on the basement of successful synthesis of two - components oxide, edta complexing sol - gel method was expanded and applied to effectively synthesis nanosized muti - components oxide, such as la1 - xsrx fe o3, lafe1 - xcuxo3, la1 - xsrx coo3, laco1 - xcuxo3 because edta can bind with most metallic elements of the periodic table, this technique become a versatile tool in the production and study of new nano materials of multi - component complex oxides. a economic and new process has been studied to synthesis la2o3 nanocrystalline, using nh4hco3 as precipitant
河北大學理學博士學位論文對于單一組份的稀土氧化物，探索出一條更經濟、更方便的合成方法，即:用碳酸氫錢做稀土沉澱劑，成功地制備了納米l匆03 ，並對中間產物碳酸斕及其燒成的氧化斕分別進行了ir 、 tg一dta 、 sem 、 xrd分析研究，確定了碳酸憫的組成，氧化斕的物相、結構，並發現分散劑的種類對微觀形貌有一定的影響。Fe3o4 nano - particles, which can be dispersed in nano scale, were prepared by means of chemical co - precipitation method. such influencing factors as the type of precipitant, the feeding mode, the surfactants, the reaction temperature, the curing temperature were surveyed. some properties such as crystal structure, particle size, magnetic properties and iron content were characterized
深入探討了沉澱劑的種類、加入方式、表面活性劑、反應溫度、熟化溫度等各種因素對產物的粒徑及磁性能的影響，對fe _ 3o _ 4納米粒子進行了晶體結構、粒徑、磁性能、鐵含量等性能的表徵。Studies showed that process and condition control had critical effect on the preparation of yig phase, and the proper conditions specialized as follows : using ammonia - ammonium nitrate ( nh3 - nh4no3 ) as precipitant, ph scope from 10 to 10. 5, using dissolving salt as law materials, dropping their mixed solution into precipitant, precipitation rate at 0. 8ml / min
研究表明，共沉澱的過程和條件控制對yig的合成具有重要影響。實驗得出共沉澱的合適條件為：以nh _ 3 - nh _ 4no _ 3為緩沖溶液，控制ph范圍為10 . 0 ? 10 . 5 ，採用可溶性鹽為原料配製溶液，滴加到沉澱劑中的共沉澱方式，共沉澱速度為0 . 8ml min左右。The method for determining avermectin ( avm ) in muscle of sturgeon ( a. schrenckif ) by high performance liquid chromatography with fluorescence detector was established. the homogenized muscle sample was extracted by acetonitrile, following centrifugation at 3000 g for 15 min
採用乙腈作為肌肉中蛋白沉澱劑和阿維菌素的提取劑，經堿性氧化鋁spe柱純化，蒸乾和衍生化，用高效液相色譜（ hplc ）檢測。Firstly, it is necessary to determine the variation of ddmbac concentration during coagulant sedimentation. according to basic theory of statistical analysis, the analytical method of ddmbac, which was based on modification, optimization and perfection of spectrophotometric method using acid blue 1 #, was developed in this paper
為確定混凝沉澱過程中陽離子表面活性劑ddmbac濃度的變化，本文從基本的數理統計理論出發，對陽離子表面活性劑檢測方法酸性藍分光光度法進行了改進、優化和完善，建立了適于本研究中測定ddmbac的分析方法。Extenders for paints - specifications and methods of test - blanc fixe
塗料填充劑.規范和試驗方法.沉澱硫酸鋇It is shown that the liquid phase methods, in which particularly methods of the sol - gel, deposition, micro - lacteous, hydrothermal / solvothermal reaction and hydrolyze, should be mentioned, as the most wildly used method in the present
指出液相法，尤其是溶膠凝膠法、沉澱法、水解法、微乳液法、水熱溶劑熱法等是目前制備納米金屬氧化物材料最廣泛應用的方法。In this paper, co3o4 nano - particles were prepared by homogeneous precipitation method, technical conditions and kinetics were studied, the main contents and results are as follows : co ( no3 ) 2 6h2o was used as raw materials, and co ( nh2 ) 2 was used as precipitator, co3o4 nano - particles were prepared by homogeneous precipitation. the influences of concentration, molar ratio of reactants, reaction temperature and time, dryness temperature and time, and calcining temperature and time on particle size were investigated
本文採用均勻沉澱法制備納米co _ 3o _ 4粉體材料，研究了制備工藝條件、沉澱反應和前驅體熱分解過程的動力學，主要研究內容及結果如下：以硝酸鈷為原料，尿素為沉澱劑，採用均勻沉澱法制備納米co _ 3o _ 4 ，考察了硝酸鈷濃度、反應物摩爾比、反應溫度和時間、乾燥溫度和時間、煅燒溫度和時間等條件對產物粒徑的影響。The effect of amorphous hydrated ruo _ 2 power production is discussed here, including : selection and ratio of solvent, selection and concentration of precipitator, terminal ph of titration and anneal temperature and time of colloid. research indicated that terminal ph and anneal temperature are the most important influence factors on physical and electrochemical properties of amorphous hydrated ruo _ 2 power
討論了超細氧化釕粉體的制備影響因素，包括:溶劑選擇和配比、沉澱劑選擇和濃度、滴定終點ph值以及焙燒溫度和時間對氧化釕粉體粒度分佈及電化學的影響，研究表明:沉澱終點ph值以及膠體焙燒溫度對粉體物理和電化學性能影響較大。Methods of chemical analysis of tungsten - the beryllium as carrier precipitation agent - molybdenum blue photometric method for the determination of phosphorus content
鎢化學分析方法鈹為載帶沉澱劑-鉬藍光度法測定磷量( 2 ) the affecting factors such as components in precipitation process, the add - on, add on of precipitator, calination temperature and calination time were studied in the preparation process of ceo2 nanoparticles. the tg was used to analyze the processor, the xrd, sem and tem were used to characterize the size of crystal type of products. by a series of designed experiments the interaction between different factors and impacts on the preparation of ceo2 nanoparticles were probed, and the optimum preparation condition was gotten
（ 2 ）對納米二氧化鈰制備過程中可能的一些影響因素（反應組分的濃度，沉澱劑的加入量，焙燒溫度，焙燒時間等）進行了研究，並通過tg ? dta分析手段對前驅物進行熱重分析；用xrd 、 sem及tem等測試手段對產物的粒度和晶型進行分析；探索了各個因素對納米二氧化鈰制備的影響及各因素間的交互作用；確定了在該試驗條件下制備納米二氧化鈰比較優化的制備條件。The main contents of this dissertation are summarized as follows. ( l ) by investigating and preparing the ceo2 nanoparticles with various precipitators we choosed the cerium ( iii ) nitrate, hydrogen peroxide and ammonia as the materials to prepared the nanoparticles by a two - stage precipitation method the process differents from the general precipitation process
試驗的主要研究內容： （ 1 ）通過不同沉澱劑的制備研究，選擇以硝酸鈰、雙氧水和氨水為基本原料，經過鈰（ ）離子的氧化和鈰（ ）離子的沉澱兩個主要過程制備納米二氧化鈰。We explored the optimal way to prepare the large grain of rare - earth composite oxide, though the selection of best precipitator, best way to deposition etc
文章通過對沉澱劑、沉澱方法等的研究，探索了實驗室制備較大粒徑稀土復合氧化物的優化條件。The second chapter shows the synthesis and electrochemical capacitance performance of the mesoporous co ( oh ) 2 in 1 m koh electrolyte. mesoporous co ( oh ) 2 with the high specific area of 283 m2 / g and average pore size of 11 nm by means of the sds as soft template and urea as precipitator was synthesized
第二章為多孔cooh ） 2的制備及其超電容行為:利用十二烷基硫酸鈉為軟模板，尿素為沉澱劑合成了具有高比表面積（ 283m2 / g ） 、平均孔徑為11nm的中孔co （ oh ） 2體相材料。Corresponding soluble salts have been chosen as raw materials and ammonia as precipitator. the optimum ph value is 8. 5 - 10 and higher concentration is helpful for crystal growth. the perovskite phase plzst can be synthesized at 750 by solid state reaction
合適的工藝條件為：選擇以各離子的可溶性鹽為原料，以氨水為沉澱劑，通過共沉澱得到白色無定型前驅體，最佳的ph值范圍為8 . 5 10 ，溶液的濃度越高越有利於固相反應合成中晶體的形成，適當的沉澱后處理過程如水洗、干磨能促進plzst晶體的生成。分享友人