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1.发明授权Method and installation for carrying out a three phase chemical reaction under pressure 有权在压力下进行三相化学反应的方法和装置公开(公告)号：US06759027B1
公开(公告)日：2004-07-06
申请号：US09591118
申请日：2000-06-09
IPC分类号： C01G4300
CPC分类号： B01J8/228 , B01J8/0005 , B01J8/006 , B01J8/226 , B01J2208/0015 , B01J2208/00212 , C01G43/00 , Y10S423/09 , Y10S423/13
摘要： A gas siphon type reactor (10) is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of the pressure in the reactor (10) is provided by regulating the liquid and gas flow rates from a high pressure separator (52), into which the liquid and the gas leaving the reactor (10) are routed. The liquid in the reactor (10) is tapped from a lateral branch pipe (32) fitted with a filter (36) and emerging in the upper area (30), behind a profiled wall (34).
摘要翻译： 气体虹吸式反应器（10）用于在二氧化硅载体上由铂构成的催化剂存在下，在压力下进行三相化学反应，例如将硝酸铀酰还原为硝酸铀酸盐。 通过调节离开反应器（10）的液体和气体被路由到的高压分离器（52）的液体和气体流速来提供对反应器（10）中压力的控制。 反应器（10）中的液体从安装有过滤器（36）的侧向分支管（32）中抽出并出现在上部区域（30）中，在成型壁（34）的后面。
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2.发明申请DISSOLUTION AND RECOVERY OF AT LEAST ONE ELEMENT NB OR TA AND OF AT LEAST ONE OTHER ELEMENT U OR RARE EARTH ELEMENTS FROM ORES AND CONCENTRATES 审中-公开至少一个元素的解散和恢复NB或TA和至少一个其他元素或从ORES和浓度的稀土元素公开(公告)号：US20130340571A1
公开(公告)日：2013-12-26
申请号：US13978112
申请日：2012-01-06
申请人： Jerome Agin , Nicolas Durupt , Antoine Greco , Fatima Hammy , Guillaume Laroche , Jacques Thiry
发明人： Jerome Agin , Nicolas Durupt , Antoine Greco , Fatima Hammy , Guillaume Laroche , Jacques Thiry
CPC分类号： C22B1/02 , C22B1/06 , C22B3/08 , C22B34/24 , C22B59/00 , C22B60/02 , C22B60/0204 , C22B60/0208 , Y02P10/216 , Y02P10/234
摘要： The main subject-matter of the present invention is a process for the dissolution of at least one element chosen from niobium and tantalum and at least one other element chosen from uranium and the rare earth elements, advantageously for the dissolution of niobium, tantalum, uranium and rare earth elements, present in an ore or an ore concentrate. Said process comprises: the roasting of a material, comprising said elements, which material is mixed, dry or/in the presence of water, with an acid roasting agent in order to obtain a calcine; said material consisting of said ore or concentrate or having been obtained from said ore or said concentrate and said acid roasting agent providing for roasting in a sulphate medium; and the dissolution in an aqueous solution of the calcine obtained in order to obtain a slurry, the liquid fraction of which includes iron, in the ferric state, at a concentration of at least 50 g/l, advantageously of at least 70 g/l and very advantageously of at least 120 g/l.
摘要翻译： 本发明的主要目的是一种溶解选自铌和钽的至少一种元素和选自铀和稀土元素的至少一种其它元素的方法，有利于溶解铌，钽，铀 和稀土元素，以矿石或矿石精矿存在。 所述方法包括：将含有所述元素的材料（该材料混合干燥或/在水存在下）与酸性焙烧剂焙烧以获得煅烧物; 所述材料由所述矿石或浓缩物组成或已经从所述矿石或所述浓缩物获得，所述酸性焙烧剂提供在硫酸盐介质中焙烧; 并且在所得到的煅烧水溶液中溶解以获得浆料，其液体部分包含铁，其铁含量为至少50g / l，有利地为至少70g / l 非常有利地为至少120g / l。
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3.发明授权公开(公告)号：US07022295B2
公开(公告)日：2006-04-04
申请号：US10852467
申请日：2004-05-24
CPC分类号： B01J8/228 , B01J8/0005 , B01J8/006 , B01J8/226 , B01J2208/0015 , B01J2208/00212 , C01G43/00 , Y10S423/09 , Y10S423/13
摘要： A gas siphon type reactor (10) is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of the pressure in the reactor (10) is provided by regulating the liquid and gas flow rates from separator (52), into which the liquid and the gas leaving the reactor (10) are routed. The liquid in the reactor (10) is tapped from a lateral branch pipe (32) fitted with a filter (36) and emerging in the upper area (30), behind a profiled wall (34).
摘要翻译： 气体虹吸式反应器（10）用于在二氧化硅载体上由铂构成的催化剂存在下，在压力下进行三相化学反应，例如将硝酸铀酰还原为硝酸铀酸盐。 通过调节离开反应器（10）的液体和气体的分离器（52）的液体和气体流速来控制反应器（10）中的压力的控制。 反应器（10）中的液体从安装有过滤器（36）的侧向分支管（32）中抽出并出现在上部区域（30）中，在成型壁（34）的后面。
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