[특허]Metal chlorides and metals obtained from metal oxide containing materials

Metal chlorides and metals obtained from metal oxide containing materials 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C01B-009/02 B01J-008/00 C01G-001/06 C01G-023/02 C01G-049/10 C25C-003/06
출원번호	US-0386852 (2006-03-23)
등록번호	US-9315382 (2016-04-19)
발명자 / 주소	Chaifetz, Richard I. Matusewitch, Gregory William Morton, Corey Clague Phillips, Jason Michael
출원인 / 주소	KEYSTONE METALS RECOVERY INC.
대리인 / 주소	Greenblum & Bernstein, P.L.C.
인용정보	피인용 횟수 : 0 인용 특허 : 48

초록 ▼

Method and apparatus for preparing at least one metal chloride from metal oxide containing material comprising calcining the metal oxide containing material under temperature conditions sufficient to obtain a calcined product comprising at least one metal oxide; and selectively chlorinating the calc

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1. A method for preparing at least aluminum chloride from at least one of coal mine waste and coal fired power plant ash, the at least one of coal mine waste and coal fired power plant ash comprising non-combustible material comprising at least aluminum silicate and combustible material, comprising: (a) introducing fine particles of the at least one of coal mine waste and coal fired power plant ash into a calciner, combusting the combustible material in the calciner in an oxidizing atmosphere to provide heat content and calcining the non-combustible material under temperature conditions sufficient to cause a change in structure of an alumosilicate framework of the noncombustible material by breaking bonds in the alumosilicate framework to cause decomposition to obtain a resulting calcined product comprising metal oxides and without causing fusing of the metal oxides, the metal oxides including at least aluminum oxide; and(b) selectively chlorinating the resulting calcined product of (a) in a fluidized bed chlorinator by carbochlorination in the absence of a catalyst, including introducing (i) the resulting calcined product of (a), (ii) a chlorinating agent comprising a source of chlorine so that chlorine is present in a stoichiometric amount of chlorine based on content of the metal oxides, and (iii) a reducing agent consisting of particles of coal into the fluidized bed chlorinator including an inert gas as a fluidizing media to obtain mixing of the resulting calcined product, the chlorinating agent and the particles of coal after introduction into the fluidized bed chlorinator; the selectively chlorinating including determining a content of oxides in the resulting calcined product and using an amount of a source of chlorine and an amount of coal based upon the determining to thereby form a product gas comprising at least aluminum chloride from the resulting calcined product without substantial formation of non-metal chloride, the without substantial formation of non-metal chloride including formation of less than about 5 wt. % non-metal chloride based on total weight of the metal oxides. 2. The method according to claim 1, further comprising drying the at least one of coal mine waste and coal fired power plant ash prior to introducing into the calciner. 3. The method according to claim 1, wherein the metal oxides include in addition to aluminum oxide at least one oxide of a metal comprising alkaline and earth alkaline metals, main group III with the exception of boron, main group IV with the exception of carbon and silicon, all transition metals, all lanthanides and actinides. 4. The method according to claim 1, wherein the calcining is performed at a temperature between 1500° F. and 1600° F. 5. The method according to claim 1, wherein the calcining includes addition of a heat source. 6. The method according to claim 1, wherein at least two metal chlorides are formed and the method additionally comprises separating the at least two metal chlorides. 7. The method according to claim 6, wherein the separating includes fractional condensation/distillation of the at least two metal chlorides at pressures and temperatures to fractionally separate the at least two metal chlorides. 8. The method according to claim 1, wherein the at least one of coal mine waste and coal fired power plant ash comprises coal mine waste. 9. The method according to claim 1, wherein the at least one of coal mine waste and coal fired power plant ash comprises coal fired power plant ash. 10. The method according to claim 1, wherein the product gas after the selectively chlorinating includes solids and the method further comprises: removing the solids from the product gas; andseparating at least aluminum chloride from the product gas after removing the solids by fractional condensation/distillation. 11. The method according to claim 10, wherein the product gas further includes liquids and the method further comprises removing the liquids after removing the solids and before the separating. 12. The method according to claim 1, wherein excess heat from at least one of the calcining and the selectively chlorinating is used as an energy source. 13. The method according to claim 10, wherein the fractional condensation/distillation includes condensation and distillation of the at least aluminum chloride at pressures between atmospheric and 80 psig. 14. The method for preparing at least aluminum from the at least aluminum chloride and other metal chlorides, comprising preparing the at least aluminum chloride according to the method according to claim 6, and generating at least aluminum from the at least aluminum chloride and other metal chlorides. 15. The method for preparing at least aluminum from at least gaseous aluminum chloride and other metal chlorides, comprising preparing and separating the at least aluminum chloride according to the method according to claim 10, and generating at least aluminum from the at least aluminum chloride and other metal chlorides. 16. The method according to claim 1, wherein without substantial formation of non-metal chloride includes less than about 1 wt. % non-metal chloride based on the total weight of the metal oxides. 17. The method according to claim 1, wherein without substantial formation of non-metal chloride includes no formation of non-metal chloride. 18. The method according to claim 11, wherein the separating is performed in a separating unit at a pressure of between 40 and 80 psig, and a pressure in the fluidized bed chlorinator is higher than a first stage of the separating unit.

이 특허에 인용된 특허 (48)

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Gueguin Michel (Tracy CAX), Method of preparing a synthetic rutile from a titaniferous slag containing magnesium values.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Metal chlorides and metals obtained from metal oxide containing materials 원문보기

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Metal chlorides and metals obtained from metal oxide containing materials 원문보기

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