GB1458960A - Preparation of hydroxylammonium salts by catalytic hydrogenation of nitric oxide - Google Patents
Preparation of hydroxylammonium salts by catalytic hydrogenation of nitric oxideInfo
- Publication number
- GB1458960A GB1458960A GB4697875A GB4697875A GB1458960A GB 1458960 A GB1458960 A GB 1458960A GB 4697875 A GB4697875 A GB 4697875A GB 4697875 A GB4697875 A GB 4697875A GB 1458960 A GB1458960 A GB 1458960A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalyst
- platinum compound
- preferably used
- hydroxylammonium salts
- catalytic hydrogenation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/14—Hydroxylamine; Salts thereof
- C01B21/1409—Preparation
- C01B21/1418—Preparation by catalytic reduction of nitrogen oxides or nitrates with hydrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
1458960 Hydroxylammonium salts INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG 14 Nov 1975 [15 Nov 1974] 46978/75 Heading C1A [Also in Division B1] Hydroxylammonium salts are made by hydrogenating NO in an acid medium containing a catalyst made by mixing a suspension of an acid resistant catalyst support material in an aqueous solution of a platinum compound with hydrazine hydrate in an amount of at least 1À1 mols per mol of platinum compound at a temperature of 0-100‹ C. The concentration of the catalyst in the reaction mixture is typically 2-20 g./l. The catalyst is suitably made by mixing the suspension of support in platinum compound solution and hydrazine hydrate at 50-90‹ C. for at least 15 minutes. The platinum compound is preferably a Pt (IV) compound, e.g. PtCl 4 or H 2 PtCl 6 . Activated carbon or graphite powder are preferably used as the support material. The catalyst containing mixture is preferably used directly for the catalytic hydrogenation but the catalyst may be separated and if desired washed before use. H 2 SO 4 is the preferred acid medium and concentrations of 8N are preferred. The platinum is preferably used in an amount corresponding to 0À5-5 g. Pt/100 g. of support.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1524074A CH595281A5 (en) | 1974-11-15 | 1974-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1458960A true GB1458960A (en) | 1976-12-22 |
Family
ID=4407523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4697875A Expired GB1458960A (en) | 1974-11-15 | 1975-11-14 | Preparation of hydroxylammonium salts by catalytic hydrogenation of nitric oxide |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH595281A5 (en) |
| DE (1) | DE2551314A1 (en) |
| GB (1) | GB1458960A (en) |
| TR (1) | TR18838A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2530001C1 (en) * | 2013-04-16 | 2014-10-10 | Федеральное государственное бюджетное учреждение науки Институт катализа им. Г.К. Борескова Сибирского отделения Российской академии наук (ИК СО РАН) | Platinum catalyst, method for preparation thereof, method for regeneration thereof and method of producing hydroxylamine sulphate |
-
1974
- 1974-11-15 CH CH1524074A patent/CH595281A5/xx not_active IP Right Cessation
-
1975
- 1975-11-04 TR TR1883875A patent/TR18838A/en unknown
- 1975-11-14 GB GB4697875A patent/GB1458960A/en not_active Expired
- 1975-11-14 DE DE19752551314 patent/DE2551314A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2551314A1 (en) | 1976-09-30 |
| CH595281A5 (en) | 1978-02-15 |
| TR18838A (en) | 1977-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |