Grafted methylenediphosphonate ion exchange resins
Patent
·
OSTI ID:462849
An ion exchange resin is disclosed that is comprised of an insoluble copolymer onto which are grafted pendent groups that provide 1.0 to about 10 mmol/g dry weight phosphorus. The pendent groups have the formula as shown in the patent wherein R is hydrogen, a cation or mixtures thereof; and R{sup 1} is hydrogen or an C{sub 1}-C{sub 2} alkyl group. The resin also contains zero to about 5 mmol/g dry weight of pendent aromatic sulfonate groups. Processes for making and using an ion exchange resin are also disclosed.
- Research Organization:
- Univ. of Chicago, IL (United States)
- DOE Contract Number:
- W-31109-ENG-38
- Assignee:
- Arch Development Corp., Chicago, IL (United States); Univ. of Tennessee Research Corp., Knoxville, TN (United States)
- Patent Number(s):
- US 5,618,851/A/
- Application Number:
- PAN: 8-383,798
- OSTI ID:
- 462849
- Resource Relation:
- Other Information: PBD: 8 Apr 1997
- Country of Publication:
- United States
- Language:
- English
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