1 |
从含铝材料中回收稀土元素的方法 |
CN201280023607.0 |
2012-03-19 |
CN103534367A |
2014-01-22 |
理查德·布德罗; 丹尼斯·普利茅; 约珥·福尼尔; 雷蒙德·西蒙尼奥; 玛丽亚克里斯蒂娜·加西亚; 海因茨·克瑞万斯; 卡斯腾·迪特里希 |
本发明涉及一种从含铝材料中回收稀土元素的方法。该方法可包括:用酸浸提含铝材料,以获得含有至少一种铝离子、至少一种铁离子、至少一种稀土元素的浸出液以及固体,并将固体与浸出液分离。该方法还可包括从浸出液中选择性地基本去除该至少一种铝离子和该至少一种铁离子,并可选择地获得沉淀物。该方法还可包括从该浸出液和/或该沉淀物中基本选择性地去除该至少一种稀土元素。 |
2 |
COMPLEXOMETRIC PRECURSOR FORMULATION METHODOLOGY FOR INDUSTRIAL PRODUCTION OF HIGH PERFORMANCE FINE AND ULTRAFINE POWDERS AND NANOPOWDERS FOR SPECIALIZED APPLICATIONS |
EP14767613.4 |
2014-03-14 |
EP3245682A2 |
2017-11-22 |
FRIANEZA-KULLBERG, Teresita |
A method of forming a powder MjXp wherein Mj is a positive ion or several positive ions selected from alkali metal, alkaline earth metal or transition metal; and Xp is a monoatomic or a polyatomic anion selected from Groups IIIA, IVA, VA, VIA or VIIA; called complexometric precursor formulation or CPF. The method includes the steps of: providing a first reactor vessel with a first gas diffuser and an first agitator; providing a second reactor vessel with a second gas diffuser and a second agitator; charging the first reactor vessel with a first solution comprising a first salt of Mj; introducing gas into the first solution through the first gas diffuser, charging the second reactor vessel with a second solution comprising a salt of Mp; adding the second solution to the first solution to form a complexcelle; drying the complexcelle, to obtain a dry powder; and calcining the dried powder of said MjXp. |
3 |
Processes for recovering rare earth elements from aluminum-bearing materials |
US15004002 |
2016-01-22 |
US09945009B2 |
2018-04-17 |
Richard Boudreault; Joël Fournier; Raymond Simoneau; Maria Cristina Garcia; Heinz Krivanec; Denis Primeau; Carsten Dittrich |
The present disclosure relates to processes for recovering rare earth elements from an aluminum-bearing material. The processes can comprise leaching the aluminum-bearing material with an acid so as to obtain a leachate comprising at least one aluminum ion, at least one iron ion, at least one rare earth element, and a solid, and separating the leachate from the solid. The processes can also comprise substantially selectively removing at least one of the at least one aluminum ion and the at least one iron ion from the leachate and optionally obtaining a precipitate. The processes can also comprise substantially selectively removing the at least one rare earth element from the leachate and/or the precipitate. |
4 |
Alkali regeneration process |
US31215 |
1979-04-18 |
US4224289A |
1980-09-23 |
Geoffrey H. Covey; William H. Algar |
In the regeneration of alkaline liquors as used in paper pulping, a mixed oxide compound of an alkali or alkaline earth metal oxide and an oxide of Ti, Fe, Co, Ni, or Mn is formed by burning black liquor. The burning step is carried out in a fluidized bed. The mixed oxide product is washed in cold water and subsequently treated with hot water to precipitate the oxide of Ti, Fe, Co, Ni or Mn and enable recovery of the alkaline solution for recycling. |
5 |
Method and apparatus for removing alkali from cement system |
US3692287D |
1970-12-10 |
US3692287A |
1972-09-19 |
KOHL ROBERT F; HEIAN GLENN A |
A method and apparatus is disclosed for reducing the alkali content of cement clinker in which dust and volatilized alkalies are removed from hot clinkering kiln exit gases utilized to preheat particulate raw material. A stream of kiln exit gases at 1,800* F., with entrained dust and volatilized alkalies, are collected by a hood that turns the stream upwardly countercurrent to the falling feed material. A portion of the upwardly moving stream is bypassed upwardly and away from the falling feed material and into a mixing box as close to the hood as is permitted by surrounding structures. Air is admitted to the mixing box and mixed with the bypassed portion of the stream to chill the mixture to below 600* F., to freeze the alkalies. This sudden chilling of the bypassed gas stream freezes the alkalies to particles, most smaller than 10 to 20 microns. The chilled gas stream is then passed through a cyclone separator to collect dust particles larger than 10 to 20 microns and a minor portion of the frozen alkalies. The gas stream is then passed through an electrostatic precipitator or a plurality of gas permeable bags to collect dust particles smaller than 10 to 20 microns and a major portion of the frozen alkalies. The bypassed portion of the gas stream from the hood to the mixing box passes through a conduit that tapers toward the mixing box, and the stream from the mixing box to the cyclone separator passes through a conduit that tapers away from the mixing box, to provide an increase in velocity of the gas to maintain the dust and frozen alkalies suspended in the gas. A ported cage is mounted within the mixing box to create turbulence and efficient mixing of the air and gas.
|
6 |
Electrolytic process for production of chlorine and caustic |
US12326261 |
1961-07-11 |
US3242059A |
1966-03-22 |
GEOFFREY COTTAM RONALD; ERNEST EDWARDS GEORGE |
|
7 |
JPS6143284B2 - |
JP4807879 |
1979-04-20 |
JPS6143284B2 |
1986-09-26 |
JOFUREI HARORUDO KOEI; UIRIAMU HAABAATO ARUGA |
|
8 |
Ion conductive material* method of producing same and battery containing same material |
JP6163180 |
1980-05-09 |
JPS55151772A |
1980-11-26 |
PEETAA HARUTOBUIHI; BUERUNAA BUETSUPUNAA; BUINFURIITO BUITSUHERUHAUSU |
|
9 |
PROCESSES FOR RECOVERING RARE EARTH ELEMENTS FROM ALUMINUM-BEARING MATERIALS |
US15004002 |
2016-01-22 |
US20160153071A1 |
2016-06-02 |
Richard BOUDREAULT; Joël FOURNIER; Raymond SIMONEAU; Maria Cristina GARCIA; Heinz KRIVANEC; Denis PRIMEAU; Carsten DITTRICH |
The present disclosure relates to processes for recovering rare earth elements from an aluminum-bearing material. The processes can comprise leaching the aluminum-bearing material with an acid so as to obtain a leachate comprising at least one aluminum ion, at least one iron ion, at least one rare earth element, and a solid, and separating the leachate from the solid. The processes can also comprise substantially selectively removing at least one of the at least one aluminum ion and the at least one iron ion from the leachate and optionally obtaining a precipitate. The processes can also comprise substantially selectively removing the at least one rare earth element from the leachate and/or the precipitate. |
10 |
Processes for recovering rare earth elements from aluminum-bearing materials |
US14005885 |
2012-03-19 |
US09260767B2 |
2016-02-16 |
Richard Boudreault; Denis Primeau; Heinz Krivanec; Carsten Dittrich; Joel Fournier; Raymond Simoneau; Maria Christina Garcia |
The present disclosure relates to processes for recovering rare earth elements from an aluminum-bearing material. The processes can comprise leaching the aluminum-bearing material with an acid so as to obtain a leachate comprising at least one aluminum ion, at least one iron ion, at least one rare earth element, and a solid, and separating the leachate from the solid. The processes can also comprise substantially selectively removing at least one of the at least one aluminum ion and the at least one iron ion from the leachate and optionally obtaining a precipitate. The processes can also comprise substantially selectively removing the at least one rare earth element from the leachate and/or the precipitate. |
11 |
Elemental metals or oxides distributed on a carbon substrate or
self-supported and the manufacturing process using graphite oxide as
template |
US186831 |
1998-11-05 |
US5948475A |
1999-09-07 |
Ching-Chen Hung |
A process for providing elemental metals or metal oxides distributed on a carbon substrate or self-supported utilizing graphite oxide as a percursor. The graphite oxide is exposed to one or more metal chlorides to form an intermediary product comprising carbon, metal, chloride, and oxygen. This intermediary product can be further processed by direct exposure to carbonate solutions to form a second intermediary product comprising carbon, metal carbonate, and oxygen. Either intermediary product may be further processed: a) in air to produce metal oxide; b) in an inert environment to produce metal oxide on carbon substrate; c) in a reducing environment to produce elemental metal distributed on carbon substrate. The product generally takes the shape of the carbon precursor. |
12 |
Elemental metals or oxides distributed on a carbon substrate or
self-supported and the manufacturing process using graphite oxide as
template |
US833107 |
1997-04-04 |
US5876687A |
1999-03-02 |
Ching-Cheh Hung |
A process for providing elemental metals or metal oxides distributed on a carbon substrate or self-supported utilizing graphite oxide as a precursor. The graphite oxide is exposed to one or more metal chlorides to form an intermediary product comprising carbon, metal, chloride, and oxygen. This intermediary product can be further processed by direct exposure to carbonate solutions to form a second intermediary product comprising carbon, metal carbonate, and oxygen. Either intermediary product may be further processed: a) in air to produce metal oxide; b) in an inert environment to produce metal oxide on carbon substrate; c) in a reducing environment to produce elemental metal distributed on carbon substrate. The product generally takes the shape of the carbon precursor. |
13 |
Lapping and polishing method and apparatus for planarizing photoresist
and metal microstructure layers |
US598851 |
1996-02-09 |
US5718618A |
1998-02-17 |
Henry Guckel; Pawitterjit S. Mangat |
A method and apparatus for planarizing photoresist and/or metal microstructure layers is provided. Planarization is achieved by removing material from a workpiece by lapping using a diamond containing lapping slurry. A lapping machine is furnished with a lapping plate made of a soft metal material. The lapping plate is furnished with ridges of controlled height using a diamond conditioning ring with a specified grit size. Free diamonds in a liquid slurry are then sprayed onto the plate and embedded therein by a second conditioning ring. After the lapping plate is conditioned, the piece to be lapped is mounted on the lapping plate. A vacuum hold fixture or flat steel or glass mounting plate may be used. During lapping, additional diamond slurry is sprayed onto the lapping plate and driven into the plate by a ceramic conditioning ring. The size of diamonds in the diamond slurry are selected to control the shear forces applied to the surface being lapped and to achieve a desired surface finish. Polishing, using a cloth covered hard metal polishing plate and loose diamond slurry, may be employed after lapping to provide a smooth optical surface finish. The lapping and polishing method and apparatus of the present invention may be used for z-dimension height control, re-planarization, and surface finishing of precise single or multiple level photoresist-metal layers, or of individual preformed photoresist sheets or laminates thereof. |
14 |
Process for the extraction of alumina from minerals, rocks and
industrial by-products |
US728283 |
1976-09-30 |
US4048285A |
1977-09-13 |
Karoly Szepesi; Lajos Meszaros; Janos Majer; Jozsef Zoldi; Karl Entzmann |
The invention concerns a process for solubilizing alumina in minerals, rocks or industrial waste products, in which the starting material in finely divided form is mixed with lime in an amount 1 to 3 moles or more of lime (CaO or Ca(OH).sub.2) for each mole of alumina and optionally 1 mole for each mole of any silica present in the starting material, and at the same time or thereafter with water, the resulting mix is maintained under hydrothermal conditions until the alumina has become solubilized by reaction with the lime, and the product is if necessary comminuted to bring it to a form suitable for leaching out of the solubilized alumina. |
15 |
PROCESSES FOR RECOVERING RARE EARTH ELEMENTS FROM ALUMINUM-BEARING MATERIALS |
EP12759917 |
2012-03-19 |
EP2686458A4 |
2015-04-15 |
BOUDREAULT RICHARD; PRIMEAU DENIS; FOURNIER JOEL; SIMONEAU RAYMOND; GARCIA MARIA CRISTINA; KRIVANEC HEINZ; DITTRICH CARSTEN |
The present disclosure relates to processes for recovering rare earth elements from an aluminum-bearing material. The processes can comprise leaching the aluminum-bearing material with an acid so as to obtain a leachate comprising at least one aluminum ion, at least one iron ion, at least one rare earth element, and a solid, and separating the leachate from the solid. The processes can also comprise substantially selectively removing at least one of the at least one aluminum ion and the at least one iron ion from the leachate and optionally obtaining a precipitate. The processes can also comprise substantially selectively removing the at least one rare earth element from the leachate and/or the precipitate. |
16 |
PROCESSES FOR RECOVERING RARE EARTH ELEMENTS FROM ALUMINUM-BEARING MATERIALS |
EP12759917.3 |
2012-03-19 |
EP2686458A1 |
2014-01-22 |
BOUDREAULT, Richard; PRIMEAU, Denis; FOURNIER, Joel; SIMONEAU, Raymond; GARCIA, Maria Cristina; KRIVANEC, Heinz; DITTRICH, Carsten |
The present disclosure relates to processes for recovering rare earth elements from an aluminum-bearing material. The processes can comprise leaching the aluminum-bearing material with an acid so as to obtain a leachate comprising at least one aluminum ion, at least one iron ion, at least one rare earth element, and a solid, and separating the leachate from the solid. The processes can also comprise substantially selectively removing at least one of the at least one aluminum ion and the at least one iron ion from the leachate and optionally obtaining a precipitate. The processes can also comprise substantially selectively removing the at least one rare earth element from the leachate and/or the precipitate. |
17 |
PROCESSES FOR RECOVERING RARE EARTH ELEMENTS FROM ALUMINUM-BEARING MATERIALS |
US14005885 |
2012-03-19 |
US20150307965A1 |
2015-10-29 |
Richard BOUDREAULT; Joel FOURNIER; Raymond SIMONEAU; Maria Cristina GARCIA; Heinz KRIVANEC; DenisÉ PRIMEAU; Carsten DITTRICH |
The present disclosure relates to processes for recovering rare earth elements from an aluminum-bearing material. The processes can comprise leaching the aluminum-bearing material with an acid so as to obtain a leachate comprising at least one aluminum ion, at least one iron ion, at least one rare earth element, and a solid, and separating the leachate from the solid. The processes can also comprise substantially selectively removing at least one of the at least one aluminum ion and the at least one iron ion from the leachate and optionally obtaining a precipitate. The processes can also comprise substantially selectively removing the at least one rare earth element from the leachate and/or the precipitate. |
18 |
Complexometric precursors formulation methodology for industrial production of high performance fine and ultrafine powders and nanopowders for specialized applications |
US13839374 |
2013-03-15 |
US09136534B2 |
2015-09-15 |
Teresita Frianeza-Kullberg |
A method of forming a powder MjXp wherein Mj is a positive ion or several positive ions selected from alkali metal, alkaline earth metal or transition metal; and Xp is a monoatomic or a polyatomic anion selected from Groups IIIA, IVA, VA, VIA or VIIA; called complexometric precursor formulation or CPF. The method includes the steps of: providing a first reactor vessel with a first gas diffuser and an first agitator; providing a second reactor vessel with a second gas diffuser and a second agitator; charging the first reactor vessel with a first solution comprising a first salt of Mj; introducing gas into the first solution through the first gas diffuser, charging the second reactor vessel with a second solution comprising a salt of Mp; adding the second solution to the first solution to form a complexcelle; drying the complexcelle, to obtain a dry powder; and calcining the dried powder of said MjXp. |
19 |
Complexometric Precursors Formulation Methodology for Industrial Production of High Performance Fine and Ultrafine Powders and Nanopowders for Specialized Applications |
US13839374 |
2013-03-15 |
US20140272132A1 |
2014-09-18 |
Teresita Frianeza-Kullberg |
A method of forming a powder MjXp wherein Mj is a positive ion or several positive ions selected from alkali metal, alkaline earth metal or transition metal; and Xp is a monoatomic or a polyatomic anion selected from Groups IIIA, IVA, VA, VIA or VIIA; called complexometric precursor formulation or CPF. The method includes the steps of:providing a first reactor vessel with a first gas diffuser and an first agitator; providing a second reactor vessel with a second gas diffuser and a second agitator; charging the first reactor vessel with a first solution comprising a first salt of Mj; introducing gas into the first solution through the first gas diffuser, charging the second reactor vessel with a second solution comprising a salt of Mp; adding the second solution to the first solution to form a complexcelle; drying the complexcelle, to obtain a dry powder; and calcining the dried powder of said MjXp. |
20 |
Process for producing metal compounds from graphite oxide |
US186690 |
1998-11-05 |
US6103210A |
2000-08-15 |
Ching-Cheh Hung |
A process for providing elemental metals or metal oxides distributed on a carbon substrate or self-supported utilizing graphite oxide as a precursor. The graphite oxide is exposed to one or more metal chlorides to form an intermediary product comprising carbon, metal, chloride, and oxygen. This intermediary product can be fiber processed by direct exposure to carbonate solutions to form a second intermediary product comprising carbon, metal carbonate, and oxygen. Either intermediary product may be further processed: a) in air to produce metal oxide; b) in an inert environment to produce metal oxide on carbon substrate; c) in a reducing environment to produce elemental metal distributed on carbon substrate. The product generally takes the shape of the carbon precursor. |