The path - way controlling of neptunium in co - decontamination step of purex process, the extraction thermodynamics of amido podand and its usage in recovery of actinides from simulated hllw have been investigated. more than 95 % np were maintained in np ( v ) in 1a extractor and flowed into 1 aw, if enough amount of hno2 was added in feed adjustment and then hno2 scavenger ( urea ) was added before extraction. three kinds of amido podand were synthesized, and the extraction of lanthanides, actinides and some fission products were studied. one of them ( tbopda, n, n, n ', n " - tetrabutyl - 3 - oxa - pantenadiamide ) was used as extractant to recover actinides from hllw. the results of experiments show that more than 99. 99 % actinides were recovered from hllw and separated basically in groups. the main digests are as follows : 1
鎿走向控制研究中通過調價階段加入亞
硝酸、而萃取前清除亞
硝酸的獨特辦法可以將大於95的鎿趕入1aw 。合成了三種
酰胺莢醚萃取劑,研究了它們對錒系和裂片元素的萃取熱力學,通過條件實驗選擇了其中一種莢醚tbopda ( n , n , n 』 , n 』 ?四丁
基? 3 ?氧戊二
酰胺) ,進行了從模擬高放廢液中分離錒鑭系元素的工藝研究,錒系的回收率大於99 . 99 ,並且
基本上實現了錒鑭元素的組分離。其要點如下: 1
Chloro - 3 - nitrobenzene sulfonyl chloride
硝基苯磺
酰氯
The nitrosation of cyclohexanecarboxylic acid ( cca ) with nitrosyl sulfuric acid is an important industrial process to produce - caprolactam
摘要由環己烷羧酸與亞
硝基硫酸的亞
硝化反應制取己內
酰胺是一個重要的工業反應過程。
The experiments showed that there also existed a parallel reaction between cca and so3 as well as an intercrossing reaction between caprolactam and nitrosyl sulfuric acid, except for the nitrosation of cca
實驗證實了該過程伴有環己烷羧酸與三氧化硫作用的平行副反應以及己內
酰胺與亞
硝基硫酸作用的串聯副反應,由此提出了亞
硝化過程的反應動力學模型。
The barnidipine hydrochloride were prepared via cyclocondensation from m - nitrobenzaldehyde, methyl acetoacetate and anmmonium bicarbonate, hydrolysis, esterification with opticaliy ( s ) - n - benzyl - 3 - py - rrolidinol, recrystallisation and salification
摘要研究了以碳酸氫銨,間
硝基苯甲醛和乙
酰乙酸甲酯為原料,經縮合、部分水解,再與( s ) - n -芐
基3 -羥
基吡咯烷經酯化、分步重結晶、成鹽得到鹽酸巴尼地平的工藝路線。
Its headquarter is located at xinkailu no. 8, xuanhua district of zhangjiakou city. its main products include ziyun brand civil explosive products series : powdery ammonium nitrate explosive emulsion explosive industrial fuse ; ziyun brand fine chemical products series : glyoxalic acid 5 - 4 - hydroxyphenyl hydantoin p - hydroxyphenylacetic acid p - hydroxyphenylacetamide allantoin daidzein bufexamac ; aaa brand fine chemical products series : ethylamine methanol trimethylacetic acid tert - valeryl chloride ; great wall brand agricultural chemical fertilizer products series : ammonia urea ammonium bicarbonate ; chenguang brand calium carbide chenguang brand acetylene carbon black xuguang brand dissolved acetylene ; and the others as sulphur ammoina liquor oxygen nitrogen, etc.
公司現有主要產品為,紫雲牌民爆產品系列:粉狀
硝銨炸藥乳化炸藥工業導火索紫雲牌精細化工產品系列:乙醛酸對羥
基苯海因對羥
基苯乙酸對羥
基苯乙
酰胺尿囊素大豆甙元丁苯羥酸三a牌精細化工產品系列:乙
基胺甲醇特戊酸特戊
酰氯長城牌農化產品系列:合成氨尿素碳銨晨光牌電石,乙炔炭黑旭光牌溶解乙炔。
By using sterically hindered, electron - rich alkylphosphines and n - heterocyclic carbenes ( nhc ), this process has encompassed a broad range of substrates including ketones, aldehydes, esters, amides, malonates, nitrocompounds, nitriles and sulfones
隨著大位阻、富電子烷
基膦和氮雜環卡賓( nhc )為配體的催化體系的出現,該類反應的底物已從酮擴展到醛、酯、
酰胺以及含酸性氫的化合物如丙二酸酯、
硝基化合物、腈、碸等。
Blood. determination of cholinesterase activity. spectrophotometric method - acetylthiocholine and dithio - bis - nitrobenzoic acid method
全血膽堿酯酶活性的分光光度測定方法.硫代乙
酰膽堿-聯硫代雙
硝基苯甲酸法
Blood - determination of cholinesterase activity - spectrophotometric method - acetylthiocholine and dithio - bis - ( nitrobenzoic acid ) method
全血膽堿酯酶活性的分光光度測定方法硫代乙
酰膽堿-聯硫代雙
硝基苯甲酸法
Methods linezolid was prepared by the steps of substitution, reduction, acylation and condensation with biacetyl compond from the starting material 3, 4 - difluoronotrobenzene
方法以3 , 4 -二氟
硝基苯為原料,經取代、還原、
酰化、再與側鏈雙乙
酰化合物縮合得到目標化合物。
The self - assembling behavior and mechanism of ppq - b - ps, ppq - b - peg copolymers in the selective solvents were studied. the 5 - acetyl - 2 - aminobenzophenone ( abp ) was synthesized by using p - nitroacetophenone, ethylene glycol, phenylacetonitrile, hydrogen, perchloric acid as raw materials under stirring means
以對
硝基苯乙酮、乙二醇、苯乙腈、氫氣、高氯酸為原料,用迴流攪拌的方法合成出5 -乙
酰基- 2 -氨
基二苯甲酮( abp ) 。
The hydrolysis and nitration reaction of tetraacetylhexaazaisowurzitane ( taiw ) were studied under several nitration conditions
摘要研究了四乙
酰基六氮雜異伍茲烷在稀
硝酸催化劑介質中的水解
硝化。
Synthesis and biological activities of n - arvl - n - aroyl hydrazinecarboxyamides
鄰
硝基苯甲
酰基硫脲衍生物的合成及其生物活性研究
By using the catalyst, nitration of taiw in the system of dilute nitric acid can give hexanitrohexaazaisowurtzitane ( hniw ) with yield of over 95 % and purity over 99 %
在催化劑存在條件下,四乙酰基六氮雜異伍茲烷可在硝酸溶液中進行水解硝化,以95 %以上得率制得純度高於99 %的六硝基六氮雜異伍茲烷。