Pumpable/injectable phosphate-bonded ceramics
US6204214A · kind A · utility
75Cited by
21References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1998 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Jul 29, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S588/901
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A pumpable ceramic composition is provided comprising an inorganic oxide, potassium phosphate, and an oxide coating material. Also provided is a method for preparing pumpable ceramic-based waste forms comprising selecting inorganic oxides based on solubility, surface area and morphology criteria; mixing the selected oxides with phosphate solution and waste to form a first mixture; combining an additive to the first mixture to create a second mixture; adding water to the second mixture to create a reactive mixture; homogenizing the reactive mixture; and allowing the reactive mixture to cure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.