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。

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。

公开(公告)号：US4432947A

公开(公告)日：1984-02-21

申请号：US398831

申请日：1982-07-16

申请人： Pierre Maurel

发明人： Pierre Maurel

IPC分类号： C01D1/04 ,  C01F7/06 ,  C01G39/02

CPC分类号： C01G39/02 ,  C01D1/04 ,  C01F7/06 ,  C01P2006/80

摘要： A process for obtaining molybdenum as a useful product from aqueous solutions to be purified, according to claim 1 of French patent No. 2 404 601, which contain, besides said molybdenum, alkali metal carbonate, sulphate, hydroxide or hydrogen carbonate and which may also contain uranium, and inorganic and/or organic impurities, said solutions being treated at a temperature which is at most equal to the boiling temperature by means of lime to convert the alkali metal carbonate into hydroxide and to precipitate the insoluble calcium salts formed, then separating and washing the first precipitate which essentially contains calcium carbonate, from an alkali metal hydroxide-enriched liquor, which is concentrated by evaporation at the same time as the washing liquor of the first precipitate, to produce an alkali metal hydroxide content which is at most equal to 50%, to produce a second precipitate formed by a mixture of alkali metal molybdate and sulphate, characterized in that said solid mixture is dispersed in an acid aqueous liquor which is heated at from 120.degree. C. to 250.degree. C. under pressure to cause precipitation of anhydrous Mo0.sub.3 which is subsequently separated from the mother liquor which essentially contains alkali metal sulphate.

摘要翻译： 根据法国专利No.2404601的权利要求1的从待纯化水溶液中获得钼作为有用产物的方法，除了所述钼之外，还含有碱金属碳酸盐，硫酸盐，氢氧化物或碳酸氢盐，并且还可以 含有铀和无机和/或有机杂质，所述溶液通过石灰在至多等于沸点温度的温度下处理，以将碱金属碳酸盐转化为氢氧化物并沉淀形成的不溶性钙盐，然后分离 并且从碱金属氢氧化物富集的液体中洗涤基本上含有碳酸钙的第一沉淀物，其与第一沉淀物的洗涤液同时蒸发浓缩，以产生最多相等的碱金属氢氧化物含量 至50％，以产生由碱金属钼酸盐和硫酸盐的混合物形成的第二沉淀物，其特征在于所述固体微粒 将其分散在酸性水溶液中，该液体在120℃加压至250℃，在压力下引起无水MoO 3的沉淀，其随后与基本上含有碱金属硫酸盐的母液分离。

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。

公开(公告)号：US4511540A

公开(公告)日：1985-04-16

申请号：US315349

申请日：1981-10-26

申请人： Charles Crussard ,  Pierre Maurel ,  Jean Bonhomme

发明人： Charles Crussard ,  Pierre Maurel ,  Jean Bonhomme

IPC分类号： C22B3/44 ,  C22B47/00 ,  C01G3/12 ,  C01G51/00 ,  C01G53/11

CPC分类号： C22B47/0063 ,  C22B3/44 ,  Y02P10/234

摘要： Process for treating oxidized ores with a manganiferous matrix to recover the small quantities of copper, nickel and cobalt, which consists of attacking the aforementioned ore by means of an aqueous solution of H.sub.2 SO.sub.4 with the simultaneous injection of sulfur dioxide, at a temperature which does not exceed boiling point of the medium, at a pH less than 1.5; introducing an alkaline sulfide to precipitate the copper, nickel and cobalt sulfides in the suspension resulting from the attack; and separating by sulfides and the residue by flotation. The process is applicable to attacks on manganiferous nodules obtained from ocean beds as well as to attacks on land manganiferous matrix oxidized ores.

摘要翻译： 用含锰基质处理氧化矿石以回收少量铜，镍和钴的方法，其包括在不同时注入二氧化硫的同时注入二氧化硫的H2SO4水溶液攻击上述矿石 超过介质的沸点，pH小于1.5; 引入碱性硫化物以沉淀由于攻击导致的悬浮液中的铜，镍和钴的硫化物; 并通过浮选分离硫化物和残留物。 该过程适用于从海床获得的锰结核的攻击以及对土地锰矿基质氧化矿石的攻击。

公开(公告)号：US4495159A

公开(公告)日：1985-01-22

申请号：US398832

申请日：1982-07-16

申请人： Pierre Maurel

发明人： Pierre Maurel

IPC分类号： C01D1/04 ,  C01F7/47 ,  C01G28/02 ,  C01G43/00

CPC分类号： C01F7/47 ,  C01D1/04 ,  C01F7/473 ,  C01G28/023 ,  C01P2006/80

摘要： A process for extracting arsenic from aqueous solution to be purified, in accordance with claim 1 of U.S. Pat. No. 2,404,601, which also contains alkali metal carbonate, sulphate, hydroxide or hydrogen carbonate, and which may also contain at least one of the metals vanadium, uranium and molybdenum, comprising caustification of said solutions by means of lime to convert the carbonates into alkali metal hydroxides, followed by separation of an alkali metal hydroxide-enriched liquor and a first precipitate essentially containing calcium carbonate which is subjected to a washing operation, concentration by evaporation of the mixture of the washing liquor of the first precipitate to produce a second precipitate which essentially comprises alkali metal sulphate, which is characterized in that, before the aqueous solution is caustified, the aqueous solution is treated by a magnesium compound in an amount at least equal to the stoichiometric amount required to cause precipitation of magnesium arsenate.

摘要翻译： 根据权利要求1所述的用于从要净化的水溶液中提取砷的方法。 还包含碱金属碳酸盐，硫酸盐，氢氧化物或碳酸氢盐，并且还可以含有钒，铀和钼中的至少一种金属，包括通过石灰将所述溶液沉淀以将碳酸盐转化为碱 金属氢氧化物，然后分离富含碱金属氢氧化物的液体和基本上含有碳酸钙的第一沉淀物，其进行洗涤操作，通过蒸发第一沉淀物的洗涤液的混合物浓缩以产生第二沉淀， 基本上包括碱金属硫酸盐，其特征在于，在水溶液被除去之前，水溶液用至少等于引起砷酸镁沉淀所需的化学计量的镁化合物处理。

公开(公告)号：US4423010A

公开(公告)日：1983-12-27

申请号：US399699

申请日：1982-07-19

申请人： Pierre Maurel

发明人： Pierre Maurel

IPC分类号： C22B60/02 ,  C22B30/04

CPC分类号： C22B60/0247 ,  C22B60/0278 ,  Y02P10/212

摘要： A process for the selective removal of arsenical materials, in the course of a continuous hot oxidizing attack process, comprising attacking a uraniferous ore containing arsenical materials as impurities in the presence of an oxidizing agent in the reaction medium by means of an aqueous liquor formed by a recycling solution containing alkali metal carbonate and bicarbonate, and uranium close to the limit of solubility thereof, under concentration, temperature and pressure conditions which causes solubilization of the uranium present in the ore, and re-precipitation thereof in the attack medium, then collecting a suspension of a solid phase in a liquid phase which, after cooling, is subjected to a separation operation, recycling the liquid phase to the attack operation, and treating the separated solid phase by means of an aqueous liquor to re-dissolve the precipitated uranium which is characterized in that the arsenic which is solubilized in the attack operation is extracted by means of a magnesium compound which is introduced in an amount which is at least equal to the stoichiometric amount required to cause precipitation of magnesium arsenate.

摘要翻译： 一种在连续热氧化攻击过程中选择性除去砷物质的方法，包括在反应介质中通过由水溶液形成的含水液体，将含有砷物质的含砷矿石作为杂质在氧化剂存在下， 含有碱金属碳酸盐和碳酸氢盐的再循环溶液，以及接近其溶解度极限的铀，在浓度，温度和压力条件下，使存在于矿石中的铀溶解，并在侵入介质中重新沉淀，然后收集 固相在液相中的悬浮液，其在冷却后进行分离操作，将液相再循环至攻击操作，并通过水溶液处理分离的固相以重新溶解沉淀的铀 其特征在于，通过方法o提取在攻击操作中溶解的砷 f的镁化合物的引入量至少等于引起砷酸镁沉淀所需的化学计量量。

公开(公告)号：US4171205A

公开(公告)日：1979-10-16

申请号：US973932

申请日：1978-12-28

申请人： Jean M. Lamerant ,  Joseph Cohen ,  Pierre Maurel

发明人： Jean M. Lamerant ,  Joseph Cohen ,  Pierre Maurel

IPC分类号： C01F7/74 ,  B01D9/02

CPC分类号： C01F7/746

摘要： Process for recovering aluminum in the form of a specific acid sulfate from an initial solution containing aluminum in the form of dissolved aluminum sulfate hydrate in which the specific acid sulfate is of the formula Al.sub.2 (SO.sub.4).sub.3.0.5H.sub.2 SO.sub.4.11 to 12 H.sub.2 O and in which the initial solution is sequentially treated in a series of crystallizers, wherein successive crystallizers are maintained at a predetermined decreased generally fixed temperature such that in each crystallizer a state of supersaturation of aluminum acid sulfate exists and the parameters attendant operation of each crystallizer insure that a state of static equilibrium of precipitation of product is generally reached before the process solution/slurry is passed to a successive crystallizer, or filtered for recovery of product.

摘要翻译： 从具有硫酸铝水合物形式的铝的初始溶液中回收特定酸式硫酸盐形式的铝的方法，其中特定酸式硫酸盐具有式Al 2（SO 4）3.0·5H 2 SO 4·11·12H 2 O和 其中初始溶液在一系列结晶器中连续处理，其中连续的结晶器保持在预定的降低的通常固定的温度，使得在每个结晶器中存在酸式硫酸铝的过饱和状态，并且每个结晶器的伴随操作的参数确保 通常在将工艺溶液/浆料通入连续结晶器之前通常达到产物沉淀的静态平衡状态，或过滤以回收产物。

公开(公告)号：US4634579A

公开(公告)日：1987-01-06

申请号：US474597

申请日：1983-03-07

申请人： Pierre Maurel ,  Jean-Michel Lamerant ,  Francois Pallez

发明人： Pierre Maurel ,  Jean-Michel Lamerant ,  Francois Pallez

IPC分类号： C01G28/02 ,  C22B3/44 ,  C22B30/04 ,  C22B34/34 ,  C22B60/02

CPC分类号： C22B60/0278 ,  C01G28/023 ,  C22B3/44 ,  C22B30/04 ,  C22B34/34 ,  C22B60/0247 ,  Y02P10/234

摘要： A process for the selective removal of arsenical material in the course of a process for the hot oxidizing attack on a uraniferous and/or molybdeniferous ore containing arsenical materials, comprising attacking said ore with an aqueous liquor of sodium or potassium carbonate and/or bicarbonate, said attack operation being carried out under conditions with respect to levels of concentration, temperatures and pressures which cause solubilization of the uranium and/or molybdenum and the arsenic present in the ore, then collecting a suspension of a solid phase in a liquid phase, and finally, separating said phases, wherein the arsenic which is solubilized in the attack operation is extracted in the form of magnesium arsenate by treating the material containing the arsenic with a magnesium compound.

摘要翻译： PCT No.PCT / FR82 / 00128 Sec。 371日期1983年3月7日 102（e）日期1983年3月7日PCT Filed 1982年7月27日PCT公布。 公开号WO83 / 00509 日期：1983年2月17日。一种用于在对含有砷物质的含铀和/或含钼矿石进行热氧化攻击的过程中选择性除去砷物质的方法，包括用钠或 碳酸钾和/或碳酸氢盐，所述攻击操作在关于浓度，温度和压力水平的条件下进行，这些浓度，温度和压力导致铀和/或钼和存在于矿石中的砷溶解，然后收集固体的悬浮液 相中，最后分离所述相，其中通过用镁化合物处理含有砷的材料，以攻击操作溶解的砷被提取为砷酸镁的形式。

公开(公告)号：US4485075A

公开(公告)日：1984-11-27

申请号：US448854

申请日：1982-12-07

申请人： Pierre Maurel

发明人： Pierre Maurel

IPC分类号： C01D1/20 ,  C01D1/28 ,  C01D1/32 ,  C01D7/00 ,  C01D7/06 ,  C01D7/07 ,  C01G28/00 ,  C01G28/02 ,  C01G39/00 ,  C22B3/44 ,  C22B30/04 ,  C22B34/22 ,  C22B34/34 ,  C22B60/02 ,  C01G39/06

CPC分类号： C22B30/04 ,  C01D1/20 ,  C01D1/28 ,  C01D1/32 ,  C01D7/00 ,  C01D7/06 ,  C01D7/07 ,  C01G28/00 ,  C01G28/023 ,  C22B3/24 ,  C22B3/44 ,  C22B34/22 ,  C22B34/34 ,  C22B60/0278 ,  Y02P10/234

摘要： A process for extracting arsenic from aqueous solutions containing alkali metal carbonate, sulfate and hydroxide or hydrogen carbonate, at least one metal selected from the group consisting of vanadium, uranium and molybdenum in the form of an alkali metal salt, and inorganic and/or organic impurities, comprising the steps of caustifying the solution with lime to convert the alkali metal carbonates into hydroxides to precipitate the insoluble calcium salts formed, concentrating the solution by evaporation of the effluent liquids originating from the caustification step to obtain a precipitate substantially comprising alkali metal sulfate wherein the caustification is performed in two steps, consisting of (a) treating the solutions with an amount of lime approximately equal to but less than the stoichiometric amount necessary to convert the alkali metal carbonates into hydroxides as a first precipitate, and (b) after separating and washing the first precipitate, treating the resulting liquor with at least the stoichiometric amount of lime necessary to precipitate the arsenic in solution and the carbonate ions still present. The process is well adapted to the treatments of the liquors originating from the alkaline attack of uraniferous ore.

摘要翻译： PCT No.PCT / FR82 / 00068 Sec。 371日期1982年12月7日 102（e）1982年12月7日PCT PCT卷号1982年4月8日PCT公布。 出版物WO82 / 03620 日期：1982年10月28日。一种从含有碱金属碳酸盐，硫酸盐和氢氧化物或碳酸氢盐的水溶液中提取砷的方法，至少一种选自钒，铀和钼的金属为碱金属盐 ，以及无机和/或有机杂质，包括以下步骤：用石灰将该溶液转化成氢氧化物以沉淀形成的不溶性钙盐，通过蒸发源自苛化步骤的流出液体来浓缩该溶液，以获得 基本上包含碱金属硫酸盐的沉淀物，其中以两个步骤进行苛化处理，其包括（a）用大约等于但小于将碱金属碳酸盐转化为氢氧化物所需的化学计量的量的石灰处理溶液作为第一 沉淀，和（b）分离和洗涤第一沉淀物后处理 使所得到的液体至少具有沉淀砷溶液中所需的化学计算量的石灰，并且碳酸根离子仍然存在。 该方法适用于源于铀矿矿石碱性侵蚀的液体的处理。