成都理工大学学报(自然科学版)
成都理工大學學報(自然科學版)
성도리공대학학보(자연과학판)
JOURNAL OF CHENGDU UNIVERSITY OF TECHNOLOGY(SCIENCE & TECHNOLOGY EDITION)
2015年
1期
122-128
,共7页
崔春龙%李强%张东%王晓丽%吴涛%张玲%易发成
崔春龍%李彊%張東%王曉麗%吳濤%張玲%易髮成
최춘룡%리강%장동%왕효려%오도%장령%역발성
含铀废液%沥青铀矿%物化条件%矿物学分析
含鈾廢液%瀝青鈾礦%物化條件%礦物學分析
함유폐액%력청유광%물화조건%광물학분석
uranium-containing wastewater%uraninite%physicochemical conditions%mineralogical a-nalysis
除用于找矿目的进行的(天然与合成)沥青铀矿形成条件研究外,用于含铀废液处理的沥青铀矿形成的研究还未见报道。作者从含铀废液处理的需要出发,借鉴了沥青铀矿形成的研究成果,探讨了低温物理化学条件下类硝酸铀酰溶液的废液体系中沥青铀矿的形成及其产物的特点,为含铀废液的处理提供新的思路。实验表明:在硝酸铀酰溶液(代替含铀废液)体系中,酸性、还原条件下有利于沥青铀矿的形成;在较低温度下,只有在酸性条件下才能形成沥青铀矿;在较高温度下,在酸性、弱碱性条件下也可以形成沥青铀矿。温度越高,Eh值越低,沥青铀矿形成的速率越快。形成的沥青铀矿的主要化学成分是UO2、UO3,晶胞参数在0.5406~0.5439 nm范围内。随着温度升高,其沥青铀矿中的铀含量越高、结晶度越好、晶胞参数越大。形成的沥青铀矿集合体多以球粒状为主。
除用于找礦目的進行的(天然與閤成)瀝青鈾礦形成條件研究外,用于含鈾廢液處理的瀝青鈾礦形成的研究還未見報道。作者從含鈾廢液處理的需要齣髮,藉鑒瞭瀝青鈾礦形成的研究成果,探討瞭低溫物理化學條件下類硝痠鈾酰溶液的廢液體繫中瀝青鈾礦的形成及其產物的特點,為含鈾廢液的處理提供新的思路。實驗錶明:在硝痠鈾酰溶液(代替含鈾廢液)體繫中,痠性、還原條件下有利于瀝青鈾礦的形成;在較低溫度下,隻有在痠性條件下纔能形成瀝青鈾礦;在較高溫度下,在痠性、弱堿性條件下也可以形成瀝青鈾礦。溫度越高,Eh值越低,瀝青鈾礦形成的速率越快。形成的瀝青鈾礦的主要化學成分是UO2、UO3,晶胞參數在0.5406~0.5439 nm範圍內。隨著溫度升高,其瀝青鈾礦中的鈾含量越高、結晶度越好、晶胞參數越大。形成的瀝青鈾礦集閤體多以毬粒狀為主。
제용우조광목적진행적(천연여합성)력청유광형성조건연구외,용우함유폐액처리적력청유광형성적연구환미견보도。작자종함유폐액처리적수요출발,차감료력청유광형성적연구성과,탐토료저온물이화학조건하류초산유선용액적폐액체계중력청유광적형성급기산물적특점,위함유폐액적처리제공신적사로。실험표명:재초산유선용액(대체함유폐액)체계중,산성、환원조건하유리우력청유광적형성;재교저온도하,지유재산성조건하재능형성력청유광;재교고온도하,재산성、약감성조건하야가이형성력청유광。온도월고,Eh치월저,력청유광형성적속솔월쾌。형성적력청유광적주요화학성분시UO2、UO3,정포삼수재0.5406~0.5439 nm범위내。수착온도승고,기력청유광중적유함량월고、결정도월호、정포삼수월대。형성적력청유광집합체다이구립상위주。
Except for the formation conditions research of natural and synthetic uraninites for searching for mines,there is no report about the forming conditions research of uraninite for the processing of uranium-containing wastewater.In order to meet the needs of the processing of uranium-containing wastewater,on the basis of the research results of the uraninite's formation,this paper discusses the formation of uraninite and its mineralogical analysis in the wastewater system of the like uranyl nitrate solution under the low temperature physicochemical conditions to provide a new method for the processing of uranium-containing wastewater.The experimental results show that in the uranyl nitrate solution (instead of the uranium-containing wastewater ),the acidic and reductive conditions are in favour of the formation of uraninite.Under low temperature,only under acidic conditions, uraninite can form,but under high temperature,under acidic and weak alkalic conditions,uraninite can form.The higher the temperature and the lower the Eh value,the faster the speed of the uraninite’formation.The main chemical compositions of the uraninite are UO2 and UO3 ,whose cell parameters are in the range of 0.5406~0.5439 nm.With the increase of the temperature,the uranium content of uraninite is increases,the crystallinity is better,and the cell parameters are larger.The forming uraninite aggregates are mainly spherulitic.