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1. (WO2005012178) REDUCTION OF THE CONCENTRATION OF UNDESIRED COMPOUNDS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2005/012178 International Application No.: PCT/GB2004/003115
Publication Date: 10.02.2005 International Filing Date: 19.07.2004
IPC:
C01B 9/08 (2006.01) ,C01D 3/02 (2006.01) ,C01D 3/18 (2006.01) ,C01F 11/22 (2006.01)
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
9
General methods of preparing halides
08
Fluorides
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
D
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
3
Halides of sodium, potassium, or alkali metals in general
02
Fluorides
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
D
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
3
Halides of sodium, potassium, or alkali metals in general
14
Purification
18
with selective solvents
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
11
Compounds of calcium, strontium, or barium
20
Halides
22
Fluorides
Applicants: BROWN, Samantha, Jayne[GB/GB]; GB (UsOnly)
CORR, Stuart[GB/GB]; GB (UsOnly)
LOW, Robert, Elliott[GB/GB]; GB (UsOnly)
INEOS FLUOR HOLDINGS LIMITED[GB/GB]; P.O. Box 13 The Heath Runcorn Cheshire WA7 4QF, GB (AllExceptUS)
Inventors: BROWN, Samantha, Jayne; GB
CORR, Stuart; GB
LOW, Robert, Elliott; GB
Agent: STEVENS, Ian; Eric Potter Clarkson Park View House 58 The Ropewalk Nottingham NG1 5DD, GB
Priority Data:
0316760.818.07.2003GB
Title (EN) REDUCTION OF THE CONCENTRATION OF UNDESIRED COMPOUNDS
(FR) REDUCTION DE LA CONCENTRATION DE COMPOSES NON VOULUS
Abstract:
(EN) A process for treating a composition comprising one or more undesired compounds and one or more desired compounds so as to reduce the concentration of the one or more undesired compounds is described. The process comprises the steps of: (1) contacting the composition with an extraction solvent comprising a (hydro)fluorocarbon, and (2) separating the solvent from the one or more desired compounds; wherein one or more of the desired compounds is an inorganic material provided that water is not the only desired material. The process is particularly suited to reducing the content of sulfur and/or nitrogen containing compounds in inorganic fluorides.
(FR) L'invention concerne un procédé pour traiter une composition comprenant au moins un composé non voulu et au moins un composé voulu, de sorte à réduire la concentration du composé non voulu. Ce procédé comprend les étapes consistant à : (1) mettre la composition en contact avec un solvant d'extraction comprenant un (hydro)fluorocarbone, et (2) séparer le solvant du composé voulu ; le composé voulu étant une matière inorganique, à condition que l'eau ne soit pas la seule matière voulue. Le procédé convient particulièrement pour des applications de réduction de composés contenant du soufre et/ou de l'azote dans des fluorures inorganiques.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)