Processes for preparing titanium oxide and various other products
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C22B-021/00
C01G-023/047
C01F-007/56
C22B-034/12
C01F-007/22
C01F-007/30
C01G-023/02
C01G-049/06
C01G-053/04
C01B-007/03
C01B-033/193
C22B-003/10
C22B-003/44
C22B-026/22
C22B-059/00
출원번호
US-0413940
(2013-07-12)
등록번호
US-9290828
(2016-03-22)
국제출원번호
PCT/CA2013/000638
(2013-07-12)
국제공개번호
WO2014/008586
(2014-01-16)
발명자
/ 주소
Boudreault, Richard
Fournier, Joël
Primeau, Denis
Labrecque-Gilbert, Marie-Maxime
출원인 / 주소
ORBITE TECHNOLOGIES INC.
대리인 / 주소
Bereskin & Parr LLP/S.E.N.C.R.L., s.r.l.
인용정보
피인용 횟수 :
0인용 특허 :
175
초록▼
There are provided processes for preparing various products from various materials. For example, such processes are effective for extracting titanium and various other metals from various materials, thereby allowing for preparing products such as titanium chloride and titanium oxide. These processes
There are provided processes for preparing various products from various materials. For example, such processes are effective for extracting titanium and various other metals from various materials, thereby allowing for preparing products such as titanium chloride and titanium oxide. These processes can comprise leaching the starting material with HCl so as to obtain a leachate and a solid. The solid can be treated so as to substantially selectively extract titanium therefrom while the leachate can be treated so as to substantially selectively recover a first metal chloride therefrom.
대표청구항▼
1. A process for preparing various products, said process comprising: leaching a raw aluminum-containing material with HCl so as to obtain a leachate comprising Al, Fe and Mg ions and a solid comprising Si, and separating said solid from said leachate, thereby recovering Si;recovering said Al from s
1. A process for preparing various products, said process comprising: leaching a raw aluminum-containing material with HCl so as to obtain a leachate comprising Al, Fe and Mg ions and a solid comprising Si, and separating said solid from said leachate, thereby recovering Si;recovering said Al from said leachate by recovering Al as precipitated AlCl3, by controlling the temperature of said leachate and/or concentration of HCl, by using a precipitating agent, or by using an ion exchange resin;recovering said Fe from said leachate by recovering Fe as precipitated Fe2O3, by controlling the temperature of said leachate and/or concentration of HCl, by carrying out an hydrolysis, by using a precipitating agent, or by using an ion exchange resin; andrecovering said Mg from said leachate by recovering Mg as precipitated MgCl2, by controlling the temperature of said leachate and/or concentration of HCl, by using a precipitating agent, or by using an ion exchange resin. 2. The process of claim 1, wherein said aluminum-containing material is leached with HCl having a concentration of about 25 to about 45 weight %. 3. The process of claim 1, wherein said aluminum-containing material is leached with HCl having a concentration of about 25 to about 45 weight % at a temperature of about 125 to about 225° C. 4. The process of claim 1, wherein said process further comprises calcining at least one of AlCl3 and MgCl2 and recycling gaseous HCl so-produced by contacting it with water so as to obtain a composition having a concentration of about 25 to about 45 weight % and using said composition for leaching said aluminum-containing material. 5. The process of claim 4, wherein said recycled gaseous HCl so-produced is contacted with water so as to obtain said composition having a concentration of about 26 to about 42 weight % and said composition is reacted, at a temperature of about 125 to about 225° C., with said aluminum-containing material so as to leaching it. 6. The process of claim 1, wherein said leachate comprises iron chloride and is concentrated to a concentrated liquid having an iron chloride concentration of at least 30% by weight; and then hydrolyzed at a temperature of about 155 to about 350° C. 7. The process of claim 1, further comprising calcining MgCl2 into MgO. 8. The process of claim 1, wherein recovering said Al comprises reacting said leachate with gaseous HCl so as to obtain said liquid and said precipitate comprising said aluminum ions in the form of AlCl3.6H2O. 9. The process of claim 8, wherein said process comprises converting AlCl3.6H2O into Al2O3 by carrying out a calcination of AlCl3.6H2O. 10. The process of claim 8, wherein said process comprises converting AlCl3.6H2O into Al2O3 by heating said AlCl3.6H2O at a temperature of at least 1200° C. 11. The process of claim 8, wherein said process comprises converting AlCl3.6H2O into Al2O3 by heating said AlCl3.6H2O at a temperature of at least 350° C. 12. The process of claim 9, wherein converting AlCl3.6H2O into Al2O3 is carried out in two stages. 13. The process of claim 9, wherein converting AlCl3.6H2O into Al2O3 is carried out by injecting steam. 14. The process of claim 1, wherein said process comprises: leaching said aluminum-containing material with HCl so as to obtain said leachate comprising Al, Fe and Mg ions and a solid comprising Si, and separating said solid from said leachate, thereby recovering Si;recovering said Al from said leachate in the form of precipitated AlCl3 by controlling the temperature of said leachate and/or concentration of HCl;recovering said Fe from said leachate in the form of precipitated Fe2O3 by controlling the temperature of said leachate and/or concentration of HCl; andrecovering said Mg from said leachate by using gaseous HCl for crystallizing MgCl2. 15. A process for preparing aluminum, said process comprising: obtaining AlCl3 by a process as defined in claim 1;converting said AlCl3 into Al2O3; andconverting said Al2O3 into aluminum. 16. A process for preparing various products, the process comprising: leaching a titanium-containing material comprising Ti, Si, Fe and Al with HCl so as to obtain a leachate comprising ions of Fe and Al and a solid comprising Ti and Si, and separating the solid from the leachate;reacting the leachate with HCl so as to obtain a liquid comprising at least one chloride of Fe and a precipitate comprising a chloride of Al, and separating the precipitate from the liquid;treating the liquid under conditions effective for converting the at least one chloride of Fe into Fe2O3 and recovering said Fe2O3;heating the precipitate under conditions effective for converting the precipitate into Al2O3 and recovering said Al2O3;treating said solid so as to substantially separate Si from Ti that are contained therein by: leaching said solid with an acid in the presence of a chloride that was combined with said solid and said acid so as to obtain a liquid portion comprising Ti and a solid portion containing Si and wherein the liquid portion is separated from the solid portion so as to recover said Ti and said Si; ortreating said solid with Cl2 in order to obtain a liquid portion comprising said Ti and a solid portion comprising said Si, and wherein said solid portion and said liquid portion are separated from one another so as to recover said Ti and said Si, thereby separately recovering said Ti, Si, Fe and Al. 17. A process for preparing various products, the process comprising: leaching a titanium-containing material comprising Ti, Al, Fe and Mg with HCl so as to obtain a leachate comprising ions of Al, Fe and Mg and a solid comprising Ti, and separating the solid from the leachate;substantially selectively recovering said Al from said leachate;substantially selectively recovering said Fe from said leachate;substantially selectively recovering said Mg from said leachate;treating said solid so as at least partially recover Ti. 18. The process of claim 17, wherein said process comprises controlling the temperature of said leachate and/or concentration of HCl so as to substantially selectively precipitate said Fe in the form of at least one chloride, and recovering said precipitate from said leachate. 19. The process of claim 17, wherein said process comprises: controlling the temperature of said leachate and/or concentration of HCl so as to substantially selectively precipitate said Fe in the form of at least one chloride, and recovering said at least one chloride from said leachate;reacting said leachate with gaseous HCl so as to substantially selectively precipitate said Al in the form of AlCl3.6H2O, and recovering said AlCl3.6H2O from said leachate; andreacting said leachate with gaseous HCl so as to substantially selectively precipitate said Mg in the form of MgCl2, and recovering said MgCl2 from said leachate. 20. A process for preparing various products, said process comprising: leaching an aluminum-containing material with HCl so as to obtain a leachate comprising Al, Fe, Ni and Mg ions and a solid comprising Si, and separating said solid from said leachate, thereby recovering Si;recovering said Al contained in said leachate in the form of precipitated AlCl3 by controlling the temperature of said leachate and/or concentration of HCl;recovering said Fe contained in said leachate in the form of precipitated Fe2O3 by controlling the temperature of said leachate and/or concentration of HCl;recovering said Mg contained in said leachate by crystallizing MgCl2; andrecovering said Ni contained in said leachate under the form of NiCl2. 21. A process for preparing various products, said process comprising: leaching an aluminum-containing material with HCl so as to obtain a leachate comprising Al, Fe and Mg ions and a solid comprising Si, and separating said solid from said leachate, thereby recovering Si;recovering said Al from said leachate by recovering Al as precipitated AlCl3, by controlling the temperature of said leachate and/or concentration of HCl, by using a precipitating agent, or by using an ion exchange resin;recovering said Fe from said leachate by recovering Fe as precipitated Fe2O3, by controlling the concentration of HCl, by using a precipitating agent, or by using an ion exchange resin; andrecovering said Mg from said leachate by recovering Mg as precipitated MgCl2, by controlling the temperature of said leachate and/or concentration of HCl, by using a precipitating agent, or by using an ion exchange resin. 22. A process for preparing various products, said process comprising: leaching an aluminum-containing material with HCl so as to obtain a leachate comprising Al, Fe and Mg ions and a solid comprising Si, and separating said solid from said leachate, thereby recovering Si;substantially selectively recovering said Al from said leachate by recovering Al as precipitated AlCl3, by controlling the temperature of said leachate and/or concentration of HCl, by using a precipitating agent, or by using an ion exchange resin;substantially selectively recovering said Fe from said leachate by recovering Fe as precipitated Fe2O3, by controlling the temperature of said leachate and/or concentration of HCl, by carrying out an hydrolysis, by using a precipitating agent, or by using an ion exchange resin; andsubstantially selectively recovering said Mg from said leachate by recovering Mg as precipitated MgCl2, by controlling the temperature of said leachate and/or concentration of HCl, by using a precipitating agent, or by using an ion exchange resin.
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이 특허에 인용된 특허 (175)
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