Abstract 1. IN THE MANUFACTURE OF A COMPOSITION ION EXCHANGE ABSORBENT CAPABLE OF BEING REGENERATED BY ELUTION WITH WATER OR SALINE AQUEOUS SOLUTION AT A TEMPERATURE EXCEEDING THAT EMPLOYED IN THE ADSORPTION STAGE, SAID ABSORBENT BEING IN THE FORM OF BEDS COMPRISING WEAKLY ACIDIC AND WEAKLY BASIC ION EXCHANGE MATERIALS DISPERSED IN A MATRIX OF A CROSS-LINKED POLUVINYL ALCOHOL OBTAINED BY FORMING A DISPERSION OF SAID ION EXCHANGE MATERIAL IN A MEDIUM COMPRISING POLYVINYL ALCOHOL AND A GLUTARALDEHYDE CROSSLIKING AGENT AND CURING, THE IMPROVEMENT WHEREBY BEADS OF INCREASED STRENGTH AND INCREASED RATE OF ION EXCHANGE ARE OBTAINED, SAID IMPROVEMENT CONSISTING OG CARRYING OUT THE CURING OF SAID BEADS WITH THE BEADS IN A SOLVENT SWOLLEN CONDITION AT A TEMPERATURE OF 80* -150* C. AND A PH IN THE RANGE OF FROM -1 TO 2.
Inventors
👤 B Bolto
👤 G Stephens
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-23 23:20
CPC Classifications
B; B01; B01J; B01J43/00; B01J47/00; B01J47/018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN THE MANUFACTURE OF A COMPOSITION ION EXCHANGE ABSORBENT CAPABLE OF BEING REGENERATED BY ELUTION WITH WATER OR SALINE AQUEOUS SOLUTION AT A TEMPERATURE EXCEEDING THAT EMPLOYED IN THE ADSORPTION STAGE, SAID ABSORBENT BEING IN THE FORM OF BEDS COMPRISING WEAKLY ACIDIC AND WEAKLY BASIC ION EXCHANGE MATERIALS DISPERSED IN A MATRIX OF A CROSS-LINKED POLUVINYL ALCOHOL OBTAINED BY FORMING A DISPERSION OF SAID ION EXCHANGE MATERIAL IN A MEDIUM COMPRISING POLYVINYL ALCOHOL AND A GLUTARALDEHYDE CROSSLIKING AGENT AND CURING, THE IMPROVEMENT WHEREBY BEADS OF INCREASED STRENGTH AND INCREASED RATE OF ION EXCHANGE ARE OBTAINED, SAID IMPROVEMENT CONSISTING OG CARRYING OUT THE CURING OF SAID BEADS WITH THE BEADS IN A SOLVENT SWOLLEN CONDITION AT A TEMPERATURE OF 80* -150* C. AND A PH IN THE RANGE OF FROM -1 TO 2.
Claim 2
Dependent Claim
132 words
IN THE MANUFACTURE OF A COMPOSITION ION EXCHANGE ABSORBENT CAPABLE OF BEING REGENERATED BY ELUTION WITH WATER OR SALINE AQUEOUS SOLUTION AT A TEMPERATURE EXCEEDING THAT EMPLOYED IN THE ADSORPTION STAGE, SAID ABSORBENT BEING IN THE FORM OF BEDS COMPRISING WEAKLY ACIDIC AND WEAKLY BASIC ION EXCHANGE MATERIALS DISPERSED IN A MATRIX OF A CROSS-LINKED POLUVINYL ALCOHOL OBTAINED BY FORMING A DISPERSION OF SAID ION EXCHANGE MATERIAL IN A MEDIUM COMPRISING POLYVINYL ALCOHOL AND A GLUTARALDEHYDE CROSSLIKING AGENT AND CURING, THE IMPROVEMENT WHEREBY BEADS OF INCREASED STRENGTH AND INCREASED RATE OF ION EXCHANGE ARE OBTAINED, SAID IMPROVEMENT CONSISTING OG CARRYING OUT THE CURING OF SAID BEADS WITH THE BEADS IN A SOLVENT SWOLLEN CONDITION AT A TEMPERATURE OF 80* -150* C. AND A PH IN THE RANGE OF FROM -1 TO 2.