초록 ▼

Macroporous ion exchange resins having increased apparent density are provided by incorporating into said resins a weighting agent which is of greater apparent density than the resin itself. Such weighted resins exhibit reduced bed expansion when used with upflow streams, with relatively dense liqui

Macroporous ion exchange resins having increased apparent density are provided by incorporating into said resins a weighting agent which is of greater apparent density than the resin itself. Such weighted resins exhibit reduced bed expansion when used with upflow streams, with relatively dense liquids, and with relatively viscous liquids.

대표청구항 ▼

A method for providing a macroporous ion exchange resin showing reduced upflow bed expansion, said method comprising depositing within the pores of said resin a substantially insoluble weighting agent thereby preparing a composite material which has a higher apparent density than the apparent densit

A method for providing a macroporous ion exchange resin showing reduced upflow bed expansion, said method comprising depositing within the pores of said resin a substantially insoluble weighting agent thereby preparing a composite material which has a higher apparent density than the apparent density of the starting resin, wherein the depositing of the weighting agent into said resin is accomplished by the process comprising incorporating into the pores of said resin at least one soluble compound of Zr, Ti, Si, Sn, Pb, Co, Fe, Ni, Cu or Hg and reacting said soluble compound with a reagent which converts the soluble compound in-situ in the pores to at least one insoluble metal or metal compound.