Patent · US Expired

Method for permanently storing radioactive ion exchanger resins

US4483789A · kind A · utility

11Cited by

0References

14Claims

0Family size

Assignee

Kernforschungszentrum Karlsruhe GmbH · DE

Inventors

Siegmar Kunze · Gernsbach, DE
Gerhard Eden · Eggenstein, DE
Rainer Koster · Karlsruhe, DE

Key dates

Filing date	Jul 15, 1983
Grant date	Nov 20, 1984
Priority date	—
Expiry date	Jul 15, 2003

Classification

Technology area (CPC G)Physics
CPC primaryG21F9/304
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for forming a hardened product containing a radioactive ion exchanger resin in a condition for permanent, noncontaminating storage, by the steps of: PA1 providing, before fixing, a mass of such ion exchanger resin saturated in water, the resin being at least one resin selected from the group consisting of spherical resins and powdered resins; PA1 mixing the resin mass, with stirring, with a blast furnace cement having a composition which causes it to exhibit slow initial hardening, high sulfate resistance and low hydration heat and with a quantity of additional water equal in weight to 20% to 40% of the weight of the blast furnace cement; and PA1 allowing the resulting mixture to harden at room temperature.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.