Apparatus and method for treating containerized feed materials in a liquid reactant metal

• US 6,669,755 B2
• Filed: 06/04/2002
• Issued: 12/30/2003
• Est. Priority Date: 06/04/2002
• Status: Expired due to Fees

• Current Assignee: Clean Technology International Corp.
• Original Assignee: Clean Technology International Corp.
• Inventors: Wagner, Anthony S.
• Primary Examiner(s): ANDREWS, MELVYN J
• Application Number:
  US10/162,303
• Publication Number:
  US 20030222382A1
• Time in Patent Office: 574 Days
• Field of Search: 756/72, 753/96, 753/98, 756/10, 756/22, 756/23, 756/19, 754/14, 266/205, 266/227
• US Class Current: 75/414
• CPC Class Codes: C22B 21/0084 melting and handling molten aluminium C22B21/02, C22B21/04 and C22B21/06 take precedence
• CPC Class Codes: C22B 7/001 Dry processes
• CPC Class Codes: C22B 9/006 with use of an inert protective material including the use of an inert gas
• CPC Class Codes: Y02P 10/20 Recycling

Abstract

A treatment apparatus (10) includes a liquid reactant metal containment vessel (11) for containing a first liquid reactant metal and isolating the reactant metal from the atmosphere. A release chamber (14) is adapted to receive the first liquid reactant metal from the containment vessel (11) and a submerging arrangement (21) is adapted to dunk or submerge a container (46) of feed material into the liquid reactant metal and move the container to a release location within the release chamber (14). Relatively light materials rising from the submerged container (46), including unreacted feed material, intermediate reaction products, and perhaps final reaction products collect in a collection area (60) having an upper surface defined by an upper surface of the release chamber (14). A treatment arrangement included in the apparatus places the fluids collected in the collection area (60) in contact with the first liquid reactant metal or a second liquid reactant metal for a sufficient period of time to effect the desired reduction reactions.

Claims

1. A liquid reactant metal treatment apparatus for treating materials, held in containers, the apparatus including:

(a) a liquid reactant metal containment vessel;

(b) a release chamber positioned to receive a first liquid reactant metal from the liquid reactant metal containment vessel;

(c) a submerging arrangement for moving a container of feed material to a release location within the release chamber;

(d) a collection area defined by an upper surface of the release chamber for collecting fluids generated from the feed material released from the container, and

(e) a treatment arrangement for placing the fluids collected in the collection area in contact with the first liquid reactant metal or a second liquid reactant metal.

2. The apparatus of claim 1 further including a flow inducing arrangement for inducing a flow of first liquid reactant metal in the liquid reactant metal containment vessel from an inlet opening of the release chamber to an outlet of the release chamber.

3. The apparatus of claim 2 wherein the submerging arrangement includes a dunker member that extends along an inclined path from a feed area within the liquid reactant metal containment vessel to the release location within the release chamber.

4. The apparatus of claim 2 wherein the release chamber includes an upper inlet opening boundary at a first elevation of the liquid reactant metal containment vessel and an interior boundary at a second elevation above the first elevation.

5. The apparatus of claim 3 further including a crush surface within the release chamber, the crush surface extending generally perpendicular to the longitudinal axis of the dunker member.

6. The apparatus of claim 1 wherein the treatment arrangement includes a fluid handling system for removing fluid from the collection area and placing the fluid in contact with the first liquid reactant metal or the second liquid reactant metal.

7. A liquid reactant metal treatment apparatus for treating materials, held in containers, the apparatus including:

(a) a liquid reactant metal containment vessel;

(b) a release chamber connected to receive a first liquid reactant metal from the liquid reactant metal containment vessel;

(c) a dunker member adapted to be driven along an incline between a retracted position above a liquid reactant metal level of the liquid reactant metal containment vessel and an extended position in which a distal portion of the dunker member extends to a release location adjacent to an inlet opening of the release chamber;

(d) a flow inducing arrangement for inducing a flow of first liquid reactant metal the inlet opening of the release chamber to an outlet of the release chamber.

8. The apparatus of claim 7 wherein the release chamber includes an upper inlet opening boundary at a first elevation of the liquid reactant metal containment vessel and an interior boundary at a second elevation above the first elevation.

9. The apparatus of claim 8 further including an elongated treatment chamber connected to the outlet of the release chamber.

10. The apparatus of claim 9 wherein the treatment chamber is mounted within the liquid reactant metal containment vessel and further including at least one pressure relief passage positioned along the length of the treatment chamber.

11. The apparatus of claim 7 further including a crush surface extending generally perpendicular to the longitudinal axis of the dunker member.

12. A method for treating containerized materials, with a liquid reactant metal, the method including the steps of:

(a) moving a container of feed material to a release location below an upper surface of a first liquid reactant metal;

(b) releasing feed material from the container while the container is held at the release location;

(c) collecting a released fluid in a released chamber, the released fluid made up of fluid generated from the released feed material; and

(d) inducing a flow of liquid reactant metal through the release chamber from an inlet end of the release chamber to an outlet end of the release chamber, the flow of liquid reactant metal providing contact between the fluid collected in the release chamber and liquid reactant metal to effect a chemical reduction of compositions in the released fluid.

13. The method of claim 12 wherein the step of collecting the released fluids in the release chamber comprises collecting the released fluids below a level of liquid reactant metal in a liquid reactant metal containment vessel.

14. The method of claim 12 wherein the step of moving the container of feed material to the release location includes extending a dunker member along an incline from a feed area outside of the release chamber to a location within the release chamber.

15. The method of claim 12 further including the step of forcing released fluid to exit the release chamber into a treatment chamber.

16. The method of claim 15 further including the step of contacting released fluid within the treatment chamber with a flowing surface of the liquid reactant metal.

17. The method of claim 12 wherein the step of releasing feed material from the container while the container is held at the release location includes the step of deforming the container against a crush surface within the liquid reactant metal.

20. The method of claim 12 wherein the step of releasing feed material from the container includes the step of deforming the container against a crush surface within the first liquid reactant metal.

18. A method for treating containerized materials, with a liquid reactant metal, the method including the steps of:

(a) placing a container of feed material in a first liquid reactant metal;

(b) releasing feed material from the container;

(c) collecting a released fluid in a release chamber, the released fluid made up of fluid generated from the feed material released in the first liquid reactant metal; and

(d) removing the released fluid from the release chamber and injecting the released fluid into the first liquid reactant metal or a second liquid reactant metal.

19. The method of claim 18 the step of removing the released fluid from the release chamber includes injecting a purge fluid into the release chamber.

21. A liquid metal reactor system for treating waste materials, the reactor system including:

(a) a first reactor for contacting a first feed material with a first liquid reactant metal and for collecting reaction products including a slag and solidified metal from the first liquid reactant metal which collects at a surface of the first liquid reactant metal in the first reactor;

(b) a slag removal arrangement for removing the slag and solidified metal from the surface of the first liquid reactant metal in the first reactor; and

(c) a second reactor connected to receive the slag and solidified metal from the slag removal arrangement, the second reactor for placing the slag and solidified metal in contact with the first liquid reactant metal or a second liquid reactant metal.

22. The reactor system of claim 21 wherein the first liquid reactant metal and second liquid reactant metal have substantially the same composition.

23. The reactor system of claim 21 wherein the first liquid reactant metal and second liquid reactant metal are provided from a common liquid reactant metal supply.

24. The reactor system of claim 21 wherein the first liquid reactant metal and second liquid reactant metal are made up primarily of aluminum.

25. A method for treating materials, in a liquid reactant metal, the method including the steps of:

(a) placing a first feed material in contact with a first liquid reactant metal to produce gaseous reaction products and allowing the gaseous reaction products to pass through the first liquid reactant metal to a surface of the first liquid reactant metal;

(b) collecting a slag and solidified metal from the first liquid reactant metal at the surface of the first liquid reactant metal;

(c) removing a the slag and solidified metal from the surface of the first liquid reactant metal;

(d) contacting the slag and solidified metal with the first liquid reactant metal or a second liquid reactant metal to return the solidified metal to a liquid state and segregate from the slag.

26. The method of claim 25 further including the step of conditioning the first liquid reactant metal and the second liquid reactant metal in a common conditioning vessel.

27. The method of claim 25 wherein the first liquid reactant metal and the second liquid reactant metal include a common primary constituent.

28. The method of claim 27 wherein the primary constituent in aluminum.