purex 中文意思是什麼
purex
解釋
普雷克斯流程-
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 -
With the development of nulear power industry, more and more attention has been given to the spent nulear fuel reprocessing. purex process will remain predominant in the foreseenable future. because the valence of np, one kind of transuranium elements, is easy to interchange, the route of np in purex process is difficult to be controled. a lot of work has been done on the control of neptunium way in the world
隨著核電的發展，乏燃料后處理引起了人們的廣泛關注。 purex流程在乏燃料后處理中一直佔有主導地位。由於超鈾元素np的化學價態容易相互轉變，使purex流程中np的走向不易控制而傾于分散。 -
As the representatives of salt - free organic reductants, hydrazine derivatives possess such advantages as strong reductivity and high selectivity. the kinetics of the reaction of np ( vi ), pu ( iv ) reduction by hydrazine derivatives have been studied deeply since 1980s. the results show that it ' s potential for applying hydrazine derivatives as salt - free reductants in purex process in the near future
以肼類衍生物為代表的有機無鹽還原劑，具有還原能力強、選擇性高的特點。自上世紀八十年代以來，對于肼類衍生物還原np （ ） 、 pu （ ）的動力學已進行了較為深入的研究，並獲得了一系列重要的參數。 -
In purex process, the separation of uranium / plutonium is achieved based on quick and quantitative reduction of pu ( iv ) to pu ( ih )
在purex流程鈾鈈分離工藝中，一般使用一定的還原劑迅速和定量地還原pu以實現u 、 pu的分離。 -
Thus, it is expected that the purex process would be improved greatly through using dmhan as a reductant
因此dmhan有可能應用在後處理流程之中，從而對后處理流程作出改進。 -
( 5 ) in order to predict the distribution of u, pu and nitric acid in the purex process, a computer program, mdcex1. 0, for simulating the distribution of the solutes was developed. the mathematical model is based on quisa - newton arithmetic
的）研究了dm的hno3溶液對30 tbp煤油中p3w ）的單級還原反革行為，考察了dmhan濃度、 hno3濃度、溫度以及相接觸時間對pll （ iv ）反蘋取率的影響。
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