溶劑結晶法 的英文怎麼說
中文拼音 [róngjìjiējīngfǎ]
溶劑結晶法
英文
solvent crystallization- 溶 : 動詞(溶化; 溶解) dissolve
- 劑 : Ⅰ名詞1 (藥劑; 制劑) a pharmaceutical or other chemical preparation 2 (某些有化學作用的物品) a...
- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 晶 : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 溶劑 : dissolvant; solvent; resolvent; solventia; menstruum
- 結晶 : 1 (析出晶體) crystallize2 (晶體) crystal 3 (成果) crystallization; fruit; product; quintess...
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A new method on extraction of phenanthrene from crude anthraceneis given, which includes azeotropic dissolution with ethylene glycol, extraction of carbon tetrachloride, treatment of sulfuric acid and ethyl alcohol recrystallization, in the end, the best process is obtained
研究了從粗蒽中提取菲的方法,即用乙二醇對原料進行共沸,以四氯化碳為溶劑並用硫酸處理,最後用無水乙醇重結晶,制定出最佳的工藝路線Abstract : a new method on extraction of phenanthrene from crude anthraceneis given, which includes azeotropic dissolution with ethylene glycol, extraction of carbon tetrachloride, treatment of sulfuric acid and ethyl alcohol recrystallization, in the end, the best process is obtained
文摘:研究了從粗蒽中提取菲的方法,即用乙二醇對原料進行共沸,以四氯化碳為溶劑並用硫酸處理,最後用無水乙醇重結晶,制定出最佳的工藝路線A facile method for the preparation of 10 - arylmethylene anthrone is reported. when anthrone react with aryl aldehyde in the presence of pyridine by using xylene as the solvent, besides 10 - arylmethylene anthrone derivatives we found other oxygenated anthrone which have not been reported. physical methods shows that the oxygenated anthrone is anthraquinone, and the anthraquinone cannot be removed from the condensed products by recrystallization with solvents. an effective method of getting ride of anthraquinone is sublimation by heating
以蒽酮和芳香醛為原料,二甲苯為溶劑,吡啶催化法制取10 -芳香基甲叉基蒽酮.發現其生成物中除含有目標化合物10 -芳香基甲叉基蒽酮外,還含有部分文獻中沒有報道的蒽酮氧化物,經物理方法確定其為蒽醌.該化合物不能用溶劑重結晶的方法將其從縮合產物中除去,有效的分離方法是升華Tremendous efforts are underway on the lithium manganese oxides which are considered to attractive alternatives in term of cost, abundance and nontoxicity for lithium ion battery. the spinel li4mn5o12 and cation - doped lithium manganese oxides were synthesized by sol - gel method which is considered as a promising method
本文以立方晶系尖晶石結構的富鋰鋰錳氧化物為主要研究對象,以檸檬酸為配合劑,用溶膠-凝膠法合成了純凈的單相尖晶石li _ 4mn _ 5o _ ( 12 )以及摻雜產物。In this thesis, the structure and basic characteristic of hexagonal ferrite absorbent were summarized, and popular methods to prepare ultrafine ferrite particles and hollow microspheres were introduced. hexagonal ferrite hollow microspheres were prepared by flame powders spraying technique and flame suspending solution spraying technique
本文較為系統地概述了六角晶系鐵氧體吸收劑的結構和基本特性;介紹了當前鐵氧體超微粉末及空心微球的主要制備方法;用氧乙炔火焰粉末噴霧技術與等離子火焰溶液噴霧技術制備了六角晶系鐵氧體空心微球,對其結構和性能進行了一系列的探討工作。Because chitin has a high degree of crystallinity, it can only be dissolved in expensive organic solvents
摘要由於天然甲殼素結晶度高,在濕法紡絲過程中溶解甲殼時需要使用價格較高的有機溶劑。After a presentation of characteristics of this technique and fundamentals of crystallization, this paper describes two mutes to particle formation : the rapid expansion of supercritical fluids and the supercritical antisolvent
本文論述了它的特點和結晶過程的兩個重要路線:超臨界流體快速膨脹結晶法、超臨界流體抗溶劑結晶法。In this paper, the optimum conditions of catalyst preparation were found by studying the influences of the sol - gel process parameters on the crystal structure of the nanometer la1 - xsrxmno3, such as the value of original solution ph, the temperature of water bath, the baking temperature of sol
本文研究了採用溶膠-凝膠法制備納米鈣鈦石型氧化物催化劑過程中,初始溶液ph值、水浴溫度、焙燒溫度對納米la1 - xsrxmno3晶體結構影響。( 5 ) the article also investigate the recrystallization condition of crude lactide and point out that it also an important factor have influence on the purification production ratio. ( 6 ) give the kinetics equation of depolymerization reaction. by determination the degree of polymerization ( dp ) of the reaction system, we can get the kinetics data of the reaction
本文建議使用乙酸乙酯和異丙醇混合溶劑( 6 : 4 )對丙交酯粗產物進行重結晶; ( 6 )提出解聚反應的動力學方程,認為它是一個可近似處理為一級反應的連續反應,並可通過測定體系的平均聚合度的方法來得到包括活化能在內的反應動力學數據。The results revealed that cds nanorods were formed by using ethylenediamine and the mixture of ethylenediamine and water as solvents. the cds nanorods were about 12 - 20nm wide and 50 - 300nm long when absolute ethylenediamine was used as solvent
利用溶劑熱方法,以乙二胺與水的混合物為反應溶劑制備了cds納米棒和納米晶,並對其結構性能進行了表徵,對反應機理進行了研究。The traditional synthetic method of 2, 5 - dithiol - benzene - 1, 4 - diamine dihydrochloride ( dtbda ) is characterized by a louger time of reaction, heigher consumption on chemicals and lower yield. but by changing the solvent for synthesis, the reaction time is shortened and the consumption on chemicals is lowered
通過改變合成的溶劑對已報道的合成二巰基苯二胺二鹽酸鹽方法進行改進,克服了需經很長周期、耗用大量的反應試劑和重結晶溶劑、產率較低的缺點.改進的方法縮短了產物制備時間,減少了原料的成本消耗,效果明顯Recrystallization takes patience, but it ' s worth it ! this video walks you through the procedure, from solubility tests to cold filtration, with information on one - solvent and two - solvent recrystallizations
再結晶須有耐心,但它是值得的!此影片讓你用一種溶劑與兩種溶劑的再結晶方法從溶解度測試到冷過濾來經驗此過程。分享友人