Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Reexamination Certificate
2006-10-05
2008-11-04
Marcantoni, Paul (Department: 1793)
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
C588S256000, C106S713000
Reexamination Certificate
active
07445591
ABSTRACT:
The invention provides a method for the encapsulation of fine particulate materials which comprises treating these materials with a microfine hydraulic inorganic filler which, typically, comprises a cementitious material, such as Portland Cement. The filler is ground to a much smaller particle size than is normally used in the production of a grout and is provided in the form of an aqueous composition for the treatment of the fine particulate materials by pumping under pressure through these materials such that they become intimately encapsulated. The method is particularly applicable to the treatment of waste materials and, most particularly, waste materials which are encountered in the nuclear industry.
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Godfrey Ian Hugh
Jowsey Martin John
Miller Eric Walter
British Nuclear Fuels PLC
Marcantoni Paul
Myers Bigel & Sibley & Sajovec
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