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Title: Sensors for monitoring waste glass quality and method of using the same

A set of three electrical probes is described for monitoring alkali and oxygen activity of a glass melt. On-line, real time measurements of the potential difference among the probes when they are placed in electrical contact with the melt yield the activity information and can be used to adjust the composition of the melt in order to produce higher quality glass. The first two probes each has a reference gas and a reference electrolyte and a pair of wires in electrical connection with each other in the reference gas but having one of the wires extending further into the reference electrolyte. The reference gases both include a known concentration of oxygen. The third electrode has a pair of wires extending through an otherwise solid body to join electrically just past the body but having one of the wires extend past this junction. Measuring the potential difference between wires of the first and second probes provides the alkali activity; measurement of the potential difference between wires of the second and third probes provides the oxygen activity of the melt. 1 figure.
Inventors:
Issue Date:
OSTI Identifier:
5106607
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-073910
Patent Number(s):
US 5294313; A
Application Number:
PPN: US 7-934394
Contract Number:
AC09-89SR18035
Resource Relation:
Patent File Date: 25 Aug 1992
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; GLASS; CHEMICAL COMPOSITION; PROBES; DESIGN; OPERATION; QUALITY CONTROL; RADIOACTIVE WASTE PROCESSING; VITRIFICATION; WASTE FORMS; CONTROL; MANAGEMENT; PROCESSING; RADIOACTIVE WASTE MANAGEMENT; WASTE MANAGEMENT; WASTE PROCESSING; 052001* - Nuclear Fuels- Waste Processing