| Patent Number |
Title Of Patent |
Date Issued |
| 7045065 |
Method of removing radioactive antimony from waste streams |
May 16, 2006 |
| A method and related apparatus for monitoring and eliminating gas build-up in an anion exchange column comprised of an anion exchange material placed within a vessel and a liquid layer comprising water contaminated by at least antimony passing through said vessel, which method comprises |
| 6334337 |
Air bubbler to increase glass production rate |
January 1, 2002 |
| In a glass melter, a precious metal insert is used to protect a gas bubbler from corrosion at the orifice of the bubbler through which gas is injected into the melt. The use of a precious refractory metal insert at the bubbler orifice prevents the attack of molten glass on the bubbler. T |
| 5678236 |
Method and apparatus for eliminating volatiles or airborne entrainments when vitrifying radioact |
October 14, 1997 |
| In this invention radioactive or hazardous containing materials are vitrified in a melter having two or more chambers. Glass feed materials are added to the primary chamber of the melter and they are heated to a molten glass which is then transported to one or more secondary chambers |
| 5405590 |
Off-gas scrubber system |
April 11, 1995 |
| An off-gas quencher and solid recovery scrubber unit includes a wet flue gas scrubber which has the dual responsibilities of lowering the temperature of the inlet hot gas entering through the scrubber and trapping contaminants from the gas stream into the liquid stream. The hot exhau |
| 5340372 |
Process for vitrifying asbestos containing waste, infectious waste, toxic materials and radioact |
August 23, 1994 |
| Material, such as, for example, sealed double bags of asbestos containing waste or ash from infectious waste or toxic material or radioactive waste, is transferred into a glass melt of a furnace. Gas bubbles released into the melt form a gas curtain which causes enhanced mixing of the ma |
| 5188649 |
Process for vitrifying asbestos containing waste, infectious waste, toxic materials and radioact |
February 23, 1993 |
| Material, such as, for example, sealed double bags of asbestos containing waste or ash from infectious waste or toxic material or radioactive waste, is transferred into a glass melt of a furnace. Gas bubbles released into the melt form a gas curtain which causes enhanced mixing of the ma |
| 4902426 |
Ion exchange compositions |
February 20, 1990 |
| The present invention comprises a process for separating rare earth ions or actinide ions or mixtures thereof in solution by passing the solution through an ion exchange material to separate the rare earths or actinides or mixtures thereof. The ion exchange material has a surface area of |
| 4654146 |
Ion exchanger to separate heavy alkali metal ions |
March 31, 1987 |
| A process for removing heavy alkali metal cations from solution comprising passing a liquid over a composition including a support such as charcoal having interconnected pores containing a tetra-aryl boron moiety associated with an ion exchangeable cation absorbed on the support capable |
| 4430108 |
Method for making foam glass from diatomaceous earth and fly ash |
February 7, 1984 |
| A method of making foam glass by impregnating diatomaceous earth, fly ash or mixtures thereof, and insoluble modifiers, if any, with at least one water soluble glass former in an amount expressed as its oxide of about 2.5 to 20 weight percent of the impregnated diatomaceous earth, fly as |
| 4302231 |
Method of producing a glass article having a graded refractive index profile of a parabolic natu |
November 24, 1981 |
| A method of producing a glass article having a graded refractive index profile of a parabolic nature is disclosed. The method comprises soaking a preform having a porous matrix with interconnected pores into a stuffing solution containing at least one index modifying dopant of predetermi |
