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1. US20120301389 - METHOD FOR THE SEPARATION OF A NON-VOLATILE STRONG ACID FROM A SALT THEREOF AND COMPOSITIONS PRODUCED THEREBY

Office
United States of America
Application Number 13574641
Application Date 06.02.2011
Publication Number 20120301389
Publication Date 29.11.2012
Publication Kind A1
IPC
C01B 17/90
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
17Sulfur; Compounds thereof
69Sulfur trioxide; Sulfuric acid
90Separation; Purification
C09K 3/00
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
3Materials not provided for elsewhere
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 Eyal Aharon
Vitner Asher
Mali Revital
Raz Carmi
Inventors Eyal Aharon
Vitner Asher
Mali Revital
Raz Carmi
Priority Data 211043 03.02.2011 IL
Title
(EN) 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

  • (a) 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;
  • (b) 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;
  • (c) water;
  • (d) a non-volatile strong acid; and
  • (e) a salt thereof.


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