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1. AU2011212073 - A method for the separation of a non-volatile strong acid from a salt thereof and compositions produced thereby

Office
Australia
Application Number 2011212073
Application Date 06.02.2011
Publication Number 2011212073
Publication Date 26.07.2012
Publication Kind A1
IPC
C01B 25/234
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
25Phosphorus; Compounds thereof
16Oxyacids of phosphorus; Salts thereof
18Phosphoric acid
234Purification; Stabilisation; Concentration
C01B 17/90
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
17Sulfur; Compounds thereof
69Sulfur trioxide; Sulfuric acid
90Separation; Purification
C01B 21/46
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
21Nitrogen; Compounds thereof
20Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
38Nitric acid
46Purification; Separation
CPC
C01B 25/234
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
25Phosphorus; Compounds thereof
16Oxyacids of phosphorus; Salts thereof
18Phosphoric acid
234Purification; Stabilisation; Concentration
C01B 17/903
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
17Sulfur; Compounds thereof
69Sulfur trioxide; Sulfuric acid
90Separation; Purification
901Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
903by liquid-liquid extraction
C01B 21/46
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
21Nitrogen; Compounds thereof
20Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
38Nitric acid
46Purification; Separation ; ; Stabilisation
Applicants Asher Vitner Ltd.
Eyal Research Consultants Ltd.
Inventors Eyal, Aharon
Mali, Revital
Raz, Carmi
Vitner, Asher
Agents Phillips Ormonde Fitzpatrick
Priority Data 211043 03.02.2011 IL
61/302,116 06.02.2010 US
Title
(EN) A method for the separation of a non-volatile strong acid from a salt thereof and compositions produced thereby
Abstract
(EN) The present invention provides an organic phase composition comprising (f) a first solvent (S1 ) characterized by water solubility of less than 10% and by at least one of (a1 ) having a polarity related component of Hoy's cohesion parameter (delta-P) between 5 and 10 MPa1/2 and (b1 ) having a Hydrogen bonding related component of Hoy's cohesion parameter (delta-H) between 5 and 20 MPa1/2; (g) a second solvent (S2) characterized by a water solubility of at least 30% and by at least one of (a2) having delta-P greater than 8 MPa1/2 and (b2) having delta-H greater than 12 MPa1/2; (h) water (i) a non-volatile strong acid, and (j) a salt thereof.
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