Claims
- 1. A process for synthesizing solid form of palladium diammine hydroxide from palladium diammine compound by a procedure comprising the steps of
- a. dissolving the palladium diammine compound in aqueous ammonium hydroxide to form a first solution,
- b. treating the first solution with an OH-form of anion exchange resin to form a second solution,
- c. freeze-drying the second solution to obtain a solid form of palladium ammine hydroxide.
- 2. The process of claim 1 in which step a is carried out by first making a slurry of palladium diammine compound and water, then adding sufficient concentrated ammonium hydroxide to dissolve the palladium diammine compound, removing any particulate matter by filtration and then diluting with water to a concentration range from 100 to 140 g/l in terms of palladium metal to form a first solution.
- 3. The process of claim 1 in which step b is carried out with strongly basic type resin.
- 4. The process of claim 3 in which the resin is a quaternary ammonium type resin.
- 5. The process of claim 1 in which the palladium diammine compound consists essentially of at least one compound selected from the group consisting of Pd(NH.sub.3).sub.2 Cl.sub.2, Pd(NH.sub.3).sub.2 Br.sub.2, Pd(NH.sub.3).sub.2 I.sub.2, Pd(NH.sub.3).sub.2 SO.sub.4, and Pd(NH.sub.3).sub.2 (NO.sub.3).sub.2.
- 6. The process of claim 5 in which the palladium diammine compound is Pd(NH.sub.3).sub.2 Cl.sub.2.
- 7. A process for synthesizing solution form of palladium ammine hydroxide from palladium diammine compound by a procedure comprising the steps of:
- a. dissolving the palladium diammine compound in aqueous ammonium hydroxide to form a first solution,
- b. treating the first solution with an OH-form of anion exchange resin to form a second solution, said second solution comprising solution form of palladium ammine hydroxide.
- 8. The process of claim 7 in which the procedure comprises the additional steps of:
- a. freeze-drying the second solution to obtain a solid form of palladium ammine hydroxide,
- b. dissolving the solid form of palladium ammine hydroxide in aqueous ammonium hydroxide to form a concentrated aqueous solution of the solution form of palladium ammine hydroxide.
- 9. The process of claim 7 in which step a is carried out by first making a slurry of palladium diammine compound and water, then adding sufficient concentrated ammonium hydroxide to dissolve the palladium diammine compound removing any particulate matter by filtration and then diluting with water to a concentration range from 100 to 140 g/l in terms of palladium metal to form a first solution.
- 10. The process of claim 7 in which step b is carried out with strongly basic type resin.
- 11. The process of claim 7 in which the resin is a quaternary ammonium type resin.
- 12. The process of claim 7 in which the palladium diammine compound consists essentially of at least one compound selected from the group consisting of Pd(NH.sub.3).sub.2 Cl.sub.2, Pd(NH.sub.3).sub.2 Br.sub.2, Pd(NH.sub.3).sub.2 I.sub.2, Pd(NH.sub.3).sub.2 (NO.sub.3).sub.2, and Pd(NH.sub.3).sub.2 SO.sub.4.
- 13. The process of claim 12 in which the palladium diammine compound consists essentially of Pd(NH.sub.3).sub.2 Cl.sub.2.
Parent Case Info
This application is a continuation of application Ser. No. 448,514, filed Dec. 10, 1982, now U.S. Pat. No. 4,468,296.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
2452308 |
Lambros |
Oct 1948 |
|
4377450 |
Okinaka |
Mar 1983 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
2089374 |
Jun 1982 |
GBX |
Non-Patent Literature Citations (3)
Entry |
Patent Application Abys-Trop 1-1 Ser. No. 239,151, filed Feb. 27, 1982. |
Canadian Journal of Chemistry, vol. 50, "Hydroxy Complexes of Platinum (II) and Palladium (II)", pp. 3694-3699, (1972). |
Encyclopedia of Electrochemistry, C. A. Hampel pp. 448-456, and 726-735, (1964). |
Continuations (1)
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Number |
Date |
Country |
Parent |
448514 |
Dec 1982 |
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