Grafted methylenediphosphonate ion exchange resins

Patent · Mon Jan 26 23:00:00 EST 1998

OSTI ID:871348

Trochimcznk, Andrzej W ^[1]; Gatrone, Ralph C ^[2]; Alexandratos, Spiro ^[1]; Horwitz, E Philip ^[3]

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1. Knoxville, TN
2. Plymouth, PA
3. Naperville, IL

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 phosphorous. The pendent groups have the formula ##STR1## 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: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: ARCH Development Corp. (Chicago, IL); University of Tennessee Research Corp. (Knoxville, TN)
• Patent Number(s): US 5712347
• Application Number: 08/829998
• OSTI ID: 871348
• Country of Publication: United States
• Language: English

Related Subjects

-c
/525/521/
10
alkyl
aromatic
cation
comprised
contains
copolymer
disclosed
dry
dry weight
exchange
exchange resin
exchange resins
exchange-resin
formula
grafted
grafted methylenediphosphonate
grafted pendent
hydrogen
insoluble
insoluble copolymer
methylenediphosphonate
mixtures
mmol
pendent
phosphorous
processes
provide
resin
resins
str1
sulfonate
weight
weight phosphorous
zero