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1. 发明授权

US4296073A High temperature attack of ores by means of a liquor essentially containing a soluble bicarbonate 失效
标题翻译：通过基本上含有可溶性碳酸氢盐的液体高温侵蚀矿石
公开(公告)号：US4296073A
公开(公告)日：1981-10-20
申请号：US7920
申请日：1979-01-31
申请人： Pierre Maurel , Francois Nicolas , Bernard Bosca
发明人： Pierre Maurel , Francois Nicolas , Bernard Bosca
IPC分类号： C22B3/14 , C22B34/22 , C22B34/34 , C22B60/02 , C01G43/00
CPC分类号： C22B60/0247 , C22B3/12 , C22B34/22 , C22B34/34 , Y02P10/234
摘要： A process for the oxidizing attack at high temperature of ores containing at least one metal belonging to the group formed by uranium, vanadium and molybdenum, by means of an aqueous liquor containing a majority of sodium bicarbonate and a minority of sodium carbonate according to a ratio by weight of sodium bicarbonate to sodium carbonate of at least 1.5, in the presence of free oxygen injected into the reaction medium, this medium being maintained at a temperature of between 160.degree. C. and 300.degree. C. for at most six hours.
摘要翻译：根据比例，通过含有大部分碳酸氢钠和少量碳酸钠的含水液体，在高温下的含有至少一种属于由铀，钒和钼形成的基团的矿石进行氧化侵蚀的方法的碳酸氢钠至少至少1.5，在注入反应介质的游离氧存在下，将该介质保持在160℃至300℃的温度下至多6小时。

2. 发明授权

US06415015B2 Method and system of compensation of thickness of an organ 有权
标题翻译：器官厚度补偿方法及系统
公开(公告)号：US06415015B2
公开(公告)日：2002-07-02
申请号：US09745886
申请日：2000-12-21
申请人： Francois Nicolas , Jean Lienard , Serge Muller , Elisabeth Soubelet , Andreas Rick
发明人： Francois Nicolas , Jean Lienard , Serge Muller , Elisabeth Soubelet , Andreas Rick
IPC分类号： G01N2304
CPC分类号： G06T5/009 , G06T5/40 , G06T2207/10116 , G06T2207/30068
摘要： Method and system for compensating for the thickness of an organ in a radiology instrument, in which an image of the radiological thicknesses of the organ through which the X-ray beam has passed is calculated on the basis of a digitized image, the thickness image is filtered using a low-pass filter in order to obtain a low-frequency image, the low-frequency image is subtracted from the radiological thickness image in order to obtain a contrast image, the low-frequency image is processed using a pre-recorded table taking into account a contract &khgr; selected by a user in order to obtain an image with reduced dynamic range, and the image with reduced dynamic range is added to the contrast image in order to obtain a compensated thickness image, the pixels having a level below or above a predetermined threshold being returned at least to the value of the threshold, while preserving the differences and real ratios between the anatomical structures.
摘要翻译：根据数字化图像计算放射学仪器中的器官的厚度的方法和系统，其中根据数字化图像计算穿过X射线束的器官的放射学厚度的图像，厚度图像是使用低通滤波器进行滤波以获得低频图像，从放射学厚度图像中减去低频图像以获得对比度图像，使用预先记录的表处理低频图像考虑到一个合同＆khgr; 由用户选择以获得具有减小的动态范围的图像，并且将具有减小的动态范围的图像添加到对比度图像中，以获得补偿的厚度图像，返回低于或高于预定阈值的像素的像素返回至少达到阈值的值，同时保留解剖结构之间的差异和实际比例。

3. 发明授权

US4423013A Process for the purification of solutions containing alkali metal carbonate, sulphate, hydroxide or possibly hydrogen carbonate, and one at least of the metals vanadium, uranium and molybdenum 失效
标题翻译：用于纯化含有碱金属碳酸盐，硫酸盐，氢氧化物或可能的碳酸氢盐的溶液以及至少一种金属钒，铀和钼的方法
公开(公告)号：US4423013A
公开(公告)日：1983-12-27
申请号：US246405
申请日：1981-03-23
申请人： Pierre Maurel , Francois Nicolas
发明人： Pierre Maurel , Francois Nicolas
IPC分类号： C01D1/32 , C01F7/06 , C01G39/06 , C22B34/34 , C01G39/00 , C01G56/00
CPC分类号： C22B34/34 , C01D1/32 , C01F7/06 , C01G39/06
摘要： Process for extracting molybdenum from aqueous solutions containing alkali metal carbonate, sulphate, hydroxide or hydrogen carbonate and, primarily, one at least of the metals belonging to the group formed by vanadium, uranium and molybdenum, in the form of alkali metal salts, and mineral and/or organic impurities, said solutions resulting from an ore attack cycle and being taken off after extraction of the metal being sought, in the form of a concentrate, wherein said solutions are caustified by the addition of a suitable amount of lime, converting the carbonate present into alkali metal hydroxide, a first precipitate is separated from the alkali metal hydroxide-rich liquor, said liquor is concentrated until the alkali metal hydroxide content is at most equal to 50%, to cause the production of a second precipitate formed by alkali metal sulphate and molybdate, which is solubilized in an aqueous recycle liquor, said re-dissolution liquor then being treated with sulphide ions and then acidified to give a pH-value of lower than 4.5, in order quantitatively to precipitate the molybdenum which is separated from the mother liquor, washed and dried for use as a source of molybdenum.
摘要翻译：从含有碱金属碳酸盐，硫酸盐，氢氧化物或碳酸氢盐的水溶液中提取钼的方法，以及主要是属于由钒，铀和钼形成的基团中的至少一种以碱金属盐形式的金属和矿物和/或有机杂质，所述溶液由矿石侵蚀循环产生并在萃取金属被提取之后以浓缩物的形式取出，其中所述溶液通过加入适量的石灰而被去除，将碳酸盐存在于碱金属氢氧化物中，将第一沉淀物与富含碱金属氢氧化物的液体分离，将所述液体浓缩直到碱金属氢氧化物含量为至多等于50％，从而产生由碱形成的第二沉淀物金属硫酸盐和钼酸盐，其溶解在水性循环液体中，然后用硫化物离子处理所述再溶解液体，然后酸化以得到低于4.5的pH值，以便定量地沉淀从母液中分离的钼，洗涤并干燥以用作钼源。

4. 发明授权

US5251206A Hybrid switching system for a communication node 失效
标题翻译：用于通信节点的混合交换系统
公开(公告)号：US5251206A
公开(公告)日：1993-10-05
申请号：US684111
申请日：1991-04-12
申请人： Jean Calvignac , Eric Saint Georges , Daniel Orsatti , Gilles Toubol , Fabrice Verplanken , Francois Nicolas
发明人： Jean Calvignac , Eric Saint Georges , Daniel Orsatti , Gilles Toubol , Fabrice Verplanken , Francois Nicolas
IPC分类号： H04Q3/52 , H04L12/64 , H04L12/56 , H04L12/50
CPC分类号： H04L12/64
摘要： The hybrid packet and circuit switching system allows merging of packet and circuit traffic from user interface modules on a TDM bus and transfer of packet information from one module to another module or the exchange circuit information between modules. Circuit exchanges or packet transfers are performed synchronously on the TDM busses in bursts of period T, with each burst comprising a fixed number of bytes. The bursts are switched by switch 1. A routing indication common to the packet and circuit bursts is used for controlling the switching of the bursts by the switch 1. The indication is performed by piggy backing the target module address for the circuit bursts, as well as for the packet burst, with the data bursts. Marking tables needed for the circuit burst allocation are located in the user interface modules.

5. 发明授权

US4451439A Process for the purification of solutions containing a sodium or potassium carbonate, sulphate, and possibly hydroxide, and at least one of the metals vanadium, uranium and molybdenum 失效
标题翻译：用于纯化含有碳酸钠或碳酸钾，硫酸盐和可能的氢氧化物的溶液以及至少一种金属钒，铀和钼的方法
公开(公告)号：US4451439A
公开(公告)日：1984-05-29
申请号：US324060
申请日：1981-11-23
申请人： Pierre Maurel , Bernard Bosca , Francois Nicolas
发明人： Pierre Maurel , Bernard Bosca , Francois Nicolas
IPC分类号： C01D1/20 , C01D1/28 , C01D1/32 , C01D7/00 , C01D7/07 , C01F7/47 , C22B34/22 , C22B34/34 , C22B60/02 , C01G39/06 , C01D5/00 , C01F11/18
CPC分类号： C01D1/20 , C01D1/28 , C01D1/32 , C01D7/00 , C01D7/07 , C01F7/473 , C22B34/22 , C22B34/34 , C22B60/0247 , C22B60/0278
摘要： A process for the purification of solutions containing sodium or potassium carbonate, sulphate, hydroxide or hydrogen carbonate, and mainly at least one of the metals belonging to the group formed by vanadium, uranium or molybdenum, in the form of sodium or potassium salts, and inorganic and/or organic impurities, wherein the above-mentioned solutions are completely or partially caustified by the addition of an adequate amount of lime, whereby a first precipitate essentially containing calcium carbonate is separated, and the separated liquor is concentrated by evaporation until the hydroxide content is at most equal to 50%, to cause the production of a second precipitate which essentially comprises sodium or potassium sulphate, then, after separation thereof, a hydroxide-rich liquor is collected.This process is more particularly adapted for treatments of liquors resulting from the alkaline attach of vanadiferous and uraniferous ores.
摘要翻译：用于纯化含有碳酸钠或碳酸钾，硫酸盐，氢氧化物或碳酸氢盐的溶液的方法，以及主要是属于由钒或铀或钼形成的钒，铀或钼形成的基团中的至少一种金属，其为钠盐或钾盐，无机和/或有机杂质，其中通过加入足够量的石灰将上述溶液完全或部分地除去，由此分离出基本上含有碳酸钙的第一沉淀物，通过蒸发浓缩分离的液体直到氢氧化物含量最多等于50％，导致产生基本上包含硫酸钠或硫酸钾的第二沉淀物，然后在分离之后，收集富含氢氧化物的液体。该方法更特别适用于由含钒和含铀矿石的碱性附着产生的液体的处理。

6. 发明授权

US5284605A Method of treating gas based on electrolytic fluorine containing uranium compounds 失效
标题翻译：基于电解氟铀化合物处理气体的方法
公开(公告)号：US5284605A
公开(公告)日：1994-02-08
申请号：US850883
申请日：1992-03-13
申请人： Francois Nicolas
发明人： Francois Nicolas
IPC分类号： C01B7/19 , B01D53/00 , B01D53/68 , C01G43/00 , C01G43/06 , G21F9/02
CPC分类号： B01D53/68 , B01D53/002 , C01G43/066 , Y02C20/30 , Y10S62/918
摘要： A method of treating a gas based on fluorine and containing hydrofluoric acid, and which may optionally contain condensable gaseous compounds, especially uranium compounds, and non-condensable gases. The gas is refrigerated to obtain a gaseous component containing fluorine and any non-condensable gases present, and a liquid phase containing liquid HF and condensable compounds in solution and/or suspension. The liquid phase is filtered to recover the compounds in suspension.
摘要翻译：一种处理基于氟并含有氢氟酸的气体的方法，其可任选地包含可冷凝气态化合物，特别是铀化合物和不可冷凝气体。将气体冷却以获得含有氟和存在的任何不可冷凝气体的气态组分，以及在溶液和/或悬浮液中含有液体HF和可冷凝化合物的液相。过滤液相以回收悬浮液中的化合物。

7. 发明授权

US5219540A Method of removing ruthenium contained in uranium-containing solutions 失效
标题翻译：去除含铀溶液中钌的方法
公开(公告)号：US5219540A
公开(公告)日：1993-06-15
申请号：US829266
申请日：1992-02-03
申请人： Antoine Floreancig , Francois Nicolas
发明人： Antoine Floreancig , Francois Nicolas
IPC分类号： G21C19/46 , C01G43/00 , C01G55/00 , G21F9/06
CPC分类号： C01G55/001 , C22B3/24 , Y02P10/234
摘要： A method for removing ruthenium from a uranium-containing solution comprising adding a nitrite to the solution and passing the solution over a quaternary ammonium or tertiary amine resin to selectively fix the ruthenium.
摘要翻译：一种从含铀溶液中除去钌的方法，包括向溶液中加入亚硝酸盐并使溶液通过季铵或叔胺树脂以选择性固定钌。

8. 发明授权

US4597952A Purification of solutions of sodium aluminate in the Bayer cycle by the removal of sodium oxalate 失效
标题翻译：通过去除草酸钠在拜耳循环中纯化铝酸钠溶液
公开(公告)号：US4597952A
公开(公告)日：1986-07-01
申请号：US747955
申请日：1985-06-24
申请人： Jean Fabre , Eric Lavalou , Francois Nicolas
发明人： Jean Fabre , Eric Lavalou , Francois Nicolas
IPC分类号： C01F7/02 , C01F7/47 , C01F7/06
CPC分类号： C01F7/473
摘要： A process for purifying at least a fraction of a solution in the Bayer cycle, which is preferably taken off after decomposition of the sodium aluminate, before or after concentration thereof, by causing the precipitation of the sodium oxalate in solution by the introduction of an agent for destabilization of the state of supersaturation of the sodium oxalate, which is characterized in that the supersaturation destabilization agent introduced into the Bayer solution to cause precipitation of the sodium oxalate is selected from the group comprising calcium oxalate and barium oxalate and that, in the case of solutions charged with degraded organic materials which generally result from high-temperature attack on bauxites with high proportions of humic materials, an anionic synthetic polyelectrolyte of high molecular mass is previously introduced into said solutions in order to increase the efficiency of the purification effect.
摘要翻译：一种纯化至少一部分拜耳循环中的溶液的方法，该方法优选在其浓缩之前或之后在铝酸钠分解之后，通过引入试剂使草酸钠沉淀在溶液中用于使草酸钠过饱和状态不稳定，其特征在于引入Bayer溶液中的过饱和不稳定剂引起草酸钠的沉淀，其选自草酸钙和草酸钡，并且在这种情况下通常由具有高比例腐殖质的铝土矿的高温侵蚀引起的降解有机材料的溶液，预先将高分子量的阴离子合成聚电解质引入所述溶液中，以提高净化效果。

9. 发明授权

US4423009A Carbonate, sulphate and hydroxide or hydrogen carbonate 失效
标题翻译：碳酸盐，硫酸盐和氢氧化物或碳酸氢盐
公开(公告)号：US4423009A
公开(公告)日：1983-12-27
申请号：US246398
申请日：1981-03-23
申请人： Pierre Maurel , Francois Nicolas
发明人： Pierre Maurel , Francois Nicolas
IPC分类号： C01D1/32 , C01F7/06 , C22B3/44 , C01G56/00 , C01G31/00 , C01G39/00
CPC分类号： C01D1/32 , C01F7/06 , C22B3/44 , Y02P10/234
摘要： Process for the purification of an aqueous solution containing alkali metal carbonate, sulphate, and hydroxide or hydrogen carbonate and primarily one at least of the metals belonging to the group formed by vanadium, uranium and molybdenum, in the form of alkali metal salts, and mineral and/or organic impurities, said solutions resulting from an ore attack cycle and being taken off after extraction of the metal being sought, which comprises treating said solutions by means of lime at a temperature which is at most equal to the boiling temperature, to convert the carbonate and hydrogen carbonate present into alkali metal hydroxide, then effecting separation and washing of a first precipitate of calcium carbonate and a liquor which is enriched in respect of alkali metal hydroxide, concentrating it by evaporation to cause production of a second precipitate which essentially comprises alkali metal sulphate, separating it from the hydroxide-rich liquid phase, re-dissolving it in an aqueous medium and treating the resulting alkali metal sulphate solution by means of barium aluminate and then carbon dioxide, and separating the resulting precipitate which is subjected to a heat treatment to regenerate the barium aluminate which is recycled.
摘要翻译：用于纯化碱金属碳酸盐，硫酸盐和氢氧化物或碳酸氢盐的水溶液的净化方法，以及主要由属于由钒，铀和钼形成的基团中的至少一种金属以碱金属盐和矿物质的形式和/或有机杂质，所述溶液由矿石侵蚀循环产生并在萃取所述金属之后取出，其包括在至多等于沸点温度的温度下用石灰处理所述溶液以转化碳酸盐和碳酸氢盐存在于碱金属氢氧化物中，然后分离和洗涤碳酸钙的第一沉淀物和相对于碱金属氢氧化物富集的液体，通过蒸发浓缩以产生第二沉淀物，其基本上包含碱金属硫酸盐，将其与富含氢氧化物的液相分离，将其再溶解在水溶液中并通过铝酸钡和二氧化碳处理得到的碱金属硫酸盐溶液，并分离所得到的沉淀物进行热处理以再生再生的铝酸钡。

10. 发明授权

US4400359A Process for the hot oxidized attack on a uraniferous ore by a concentrated alkaline liquor with simultaneous uranium precipitation 失效
标题翻译：通过浓缩的碱性液体同时进行铀沉淀，对含铀矿石进行热氧化攻击的过程
公开(公告)号：US4400359A
公开(公告)日：1983-08-23
申请号：US172140
申请日：1980-07-25
申请人： Pierre Maurel , Francois Nicolas
发明人： Pierre Maurel , Francois Nicolas
IPC分类号： C22B60/02
CPC分类号： C22B60/0247 , Y02P10/212
摘要： The present invention concerns a continuous process for the oxidizing attack of a uraniferous ore by means of an aqueous recycling liquor which contains in a dissolved state alkaline carbonate and bicarbonate and uranium at a concentration close to the limit of solubility thereof at the temperature of the attack operation. The uranium which is precipitated in the course of the attack operation is collected within the solid phase which remains after attack. By redissolution in a suitable aqueous liquor and separation from the sterile materials, a uraniferous liquor is obtained.
摘要翻译：本发明涉及通过含水循环液的含水矿石的氧化侵蚀的连续方法，其在溶解状态下含有碱性碳酸盐和碳酸氢盐和铀，其浓度接近其在攻击温度下的溶解度极限操作。在攻击过程中沉淀的铀被收集在攻击后保持的固相中。通过在合适的含水液体中再溶解并与无菌材料分离，得到尿素液体。

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