Method of making vapour deposited oxygen-scavenging particles
View Patent ↗This invention discloses a method of making an oxygen scavenging particle comprised of an activating component and an oxidizable component wherein one component is deposited upon the other component from a vapour phase and is particularly useful when the activating component is a protic solvent hydrolysable halogen compound and the oxygen scavenging particle is a reduced metal.
1. A process for manufacturing oxygen scavenging particles wherein the particles comprise at least one oxidizable component and at least one activating component, and said process comprises contacting the oxidizable component with a gas containing a vapour of the activating component and depositing the activating component from the gas onto the oxidizable component in either a liquid or solid form and the oxidizable component is in the form of particles.
2. The process according to claim 1 , wherein the activating component contains a halide.
3. The process according to claim 1 , wherein the activating component is a metal halide.
4. The process according to claim 1 , wherein the activating component is a protic solvent hydrolysable halogen compound.
5. The process according to claim 1 , wherein the activating component comprises at least one compound selected from the group consisting of AlCl 3 , FeCl 2 , FeCl 3 , TiCl 4 , POCl 3 , SnCl 4 , SOCl 2 , n-Butyl SnCl 3 , and AlBr 3 .
6. The process according to claim 1 , wherein the activating component comprises at least one compound selected from the group consisting of AlBr 3 , AlCl 3 , FeCl 2 and FeCl 3 .
7. The process according to claim 1 , wherein the activating component comprises at least one compound selected from the group consisting of AlCl 3 and AlBr 3 .
8. The process according to claim 1 wherein the oxidizable component comprises at least one compound selected from the group consisting of an oxidizable metal and oxidizable metal alloy.
9. The process according to claim 1 wherein the oxidizable component comprises an oxidizable metal selected from the group consisting of iron, aluminum, copper, zinc, manganese, and magnesium.
10. The process according to claim 9 , wherein the activating component contains a halide.
11. The process according to claim 9 , wherein the activating component is a metal halide.
12. The process according to claim 9 , wherein the activating component is a protic solvent hydrolysable halogen compound.
13. The process according to claim 9 , wherein the activating component comprises at least one compound selected from the group consisting of AlCl 3 , FeCl 2 , FeCl 3 , TiCl 4 , POCl 3 , SnCl 4 , SOCl 2 , n-Butyl SnCl 3 , and AlBr 3 .
14. The process according to claim 9 , wherein the activating component comprises at least one compound selected from the group consisting of AlBr 3 , AlCl 3 , FeCl 2 and FeCl 3 .
15. The process according to claim 9 , wherein the activating component comprises at least one compound selected from the group consisting of AlCl 3 and AlBr 3 .
16. The process according to claim 9 , wherein the oxidizable component comprises iron.
17. The process according to claim 16 , wherein the activating component contains a halide.
18. The process according to claim 16 , wherein the activating component is a metal halide.
19. The process according to claim 16 , wherein the activating component is a protic solvent hydrolysable halogen compound.
20. The process according to claim 16 , wherein the activating component comprises at least one compound selected from the group consisting of AlCl 3 , FeCl 2 , FeCl 3 , TiCl 4 , POCl 3 , SnCl 4 , SOCl 2 , n-Butyl SnCl 3 , and AlBr 3 .
21. The process according to claim 16 , wherein the activating component comprises at least one compound selected from the group consisting of AlBr 3 , AlCl 3 , FeCl 2 and FeCl 3 .
22. The process according to claim 16 , wherein the activating component comprises at least one compound selected from the group consisting of AlBr 3 and AlCl 3 .
23. The process according to claim 1 wherein the oxidized form of the oxidizable component is reduced from a higher oxidation state in a chamber selected from the group consisting of the same chamber in which the oxidizable component is brought in contact with the activating component and a chamber connected to the chamber in which the oxidizable component is brought in contact with the activating component.
24. The process according to claim 23 , wherein the activating component contains a halide.
25. The process according to claim 23 , wherein the activating component is a metal halide.
26. The process according to claim 23 , wherein the activating component is a protic solvent hydrolysable halogen compound.
27. The process according to claim 23 , wherein the activating component comprises at least one compound selected from the group consisting of AlCl 3 , FeCl 2 , FeCl 3 , TiCl 4 , POCl 3 , SnCl 4 , SOCl 2 , n-Butyl SnCl 3 , and AlBr 3 .
28. The process according to claim 23 , wherein the activating component comprises at least one compound selected from the group consisting of AlBr 3 , AlCl 3 , FeCl 2 and FeCl 3 .
29. The process according to claim 23 , wherein the activating component comprises at least one compound selected from the group consisting of AlBr 3 and AlCl 3 .
30. The process according to claim 23 wherein the oxidizable component comprises at least one compound selected from the group consisting of an oxidizable metal and oxidizable metal alloy.
31. The process according to claim 23 wherein the oxidizable component comprises at least one compound selected from the group consisting of an oxidizable metal and metal alloy wherein at least one metal is selected from the group consisting of iron, aluminum, copper, zinc, manganese, and magnesium.
32. The process according to claim 31 , wherein the activating component contains a halide.
33. The process according to claim 31 , wherein the activating component is a metal halide.
34. The process according to claim 31 , wherein the activating component is a protic solvent hydrolysable halogen compound.
35. The process according to claim 31 , wherein the activating component comprises at least one compound selected from the group consisting of AlCl 3 , FeCl 2 , FeCl 3 , TiCl 4 , POCl 3 , SnCl 4 , SOCl 2 , n-Butyl SnCl 3 , and AlBr 3 .
36. The process according to claim 31 , wherein the activating component comprises AlBr 3 , AlCl 3 , FeCl 2 and FeCl 3 .
37. The process according to claim 31 , wherein the activating component comprises at least one compound selected from the group consisting of AlBr 3 and AlCl 3 .
38. The process according to claim 23 , wherein the oxidizable component comprises iron.
39. The process according to claim 38 , wherein the activating component contains a halide.
40. The process according to claim 38 , wherein the activating component is a protic solvent hydrolysable halogen compound.
41. The process according to claim 38 , wherein the activating component comprises at least one compound selected from the group consisting of AlCl 3 , FeCl 2 , FeCl 3 , TiCl 4 , POCl 3 , SnCl 4 , SOCl 2 , n-Butyl SnCl 3 , and AlBr 3 .
42. The process according to claim 38 , wherein the activating component comprises at least one compound selected from the group consisting of AlBr 3 , AlCl 3 , FeCl 2 and FeCl 3 .
43. The process according to claim 38 , wherein the activating component comprises at least one compound selected from the group consisting of AlBr 3 and AlCl 3 .
44. The process of claim 1 wherein the oxidizable component comprises iron and the activating component comprises AlCl 3 .
45. The process of claim 1 wherein the oxidizable component consists essentially of iron and the activating component consists essentially of AlCl 3 .