| Patent Number |
Title Of Patent |
Date Issued |
| 7553394 |
Method for removing potassium from ash produced in a kraft pulping process recovery boiler using |
June 30, 2009 |
| In the process for producing kraft pulp, performing a potassium ion removal step of flowing an aqueous solution containing ashes recovered from a combustion exhaust gas generated in a black solution combustion step by a dust collector through a packed bed filled with a sodium-type ca |
| 6488858 |
Method of controlling chromatographic separation process |
December 3, 2002 |
| A chromatographic process of a type wherein a feedstock fluid containing a plurality of components is supplied into a circulative chromatographic separation system, the process comprising the steps of (i) supplying the feedstock fluid and withdrawing a fraction enriched in a component, ( |
| 6482323 |
Chromatographic separation process |
November 19, 2002 |
| A chromatographic separation process of a type wherein a feedstock fluid containing a plurality of components is supplied into a circulative chromatographic separation system, the process comprising the steps of (i) supplying the feedstock fluid and withdrawing a fraction enriched in a |
| 5817238 |
Process for producing purified L-ascorbic acid |
October 6, 1998 |
| A process for producing purified L-ascorbic acid, which comprises subjecting an aqueous solution of crude L-ascorbic acid to column chromatography using a strongly acidic cation exchange resin; and a method of purifying L-ascorbic acid, which comprises subjecting an aqueous solution |
| 5512173 |
Demineralization apparatus and cloth for packing diluting chamber of the demineralization appara |
April 30, 1996 |
| The invention is a demineralization apparatus comprising an anode chamber disposed at one end of a vessel having an anode at the inside of the anode chamber. A cathode chamber is disposed at the other end of the vessel, having a cathode at the inside of the cathode chamber. At lease one |
| 5061371 |
Chromatographic separation apparatus |
October 29, 1991 |
| A chromatographic separation apparatus having a packed column comprising a packed layer, a retained liquid layer above the packed layer, and liquid-feed piping connected to a space above the retained liquid layer and having a flow controller: comprising flow-liquid discharge piping b |
