ES404159A1 - Procedimiento para la fabricacion de un catalizador para lafabricacion de la hidroxilamina. - Google Patents
Procedimiento para la fabricacion de un catalizador para lafabricacion de la hidroxilamina.Info
- Publication number
- ES404159A1 ES404159A1 ES404159A ES404159A ES404159A1 ES 404159 A1 ES404159 A1 ES 404159A1 ES 404159 A ES404159 A ES 404159A ES 404159 A ES404159 A ES 404159A ES 404159 A1 ES404159 A1 ES 404159A1
- Authority
- ES
- Spain
- Prior art keywords
- catalyst
- hexachloroplatinum
- solns
- hydroxylamine
- esp
- 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
- B01J23/90—Regeneration or reactivation
- B01J23/96—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the noble metals
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Procedimiento para la fabricación de un catalizador para la fabricación de la hidroxilamina, consistente en el empleo de un catalizador de platino, eventualmente con aditivos de metales nobles, depositado sobre un soporte inerte, destinado a la fabricación de hidroxilamina, por reducción , habitualmente, del monóxido , eventualmente del bióxido o del trióxido de azoe, del ácido azótico, del ión azoado o de los nitritos de alkilo, con hidrógeno, caracterizado por lo que sigue: en la solución concentrada de ácido hexacloroplatinico, llevado a la ebullición , se añade un coloide de protección, como la gelatina, el gluten o la goma arábiga y enseguida, al soporte inerte, preferentemente grafito en polvo; en la pasta resultante se reduce el ácido hexacloroplatinico a la temperatura de 30 a 100ºC, durante un mínimo de 5 minutos con formaldehido en exceso, en medio fuertemente alcalino, preferentemente el hidrógeno de sodio después de lo cual la pasta es dejada en reposo a la temperatura de +10a +100ºC durante, al menos 15 minutos; filtrando después, y el catalizador, es lavado con agua, sobre el filtro; el catalizador lavado y húmedo es activado por la puesta en contacto intensiva, con hidrógeno, en medio ácido preferentemente ácido sulfúrico diluido, a la temperatura de + 20 a 105ºC, durante 5 minutos, al menos, en presencia de una pequeña cantidad de cloruro férrico.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO6827671 | 1971-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES404159A1 true ES404159A1 (es) | 1975-12-16 |
Family
ID=20089622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES404159A Expired ES404159A1 (es) | 1971-09-24 | 1972-06-23 | Procedimiento para la fabricacion de un catalizador para lafabricacion de la hidroxilamina. |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2222120B2 (es) |
ES (1) | ES404159A1 (es) |
FR (1) | FR2153390A1 (es) |
IT (1) | IT956627B (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1964811B1 (en) * | 2007-02-28 | 2016-11-30 | China Petrochemical Development Corporation | Method for preparing hydroxylammonium phosphate |
-
1972
- 1972-05-05 DE DE19722222120 patent/DE2222120B2/de active Granted
- 1972-06-15 IT IT25754/72A patent/IT956627B/it active
- 1972-06-23 ES ES404159A patent/ES404159A1/es not_active Expired
- 1972-09-21 FR FR7233524A patent/FR2153390A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2222120B2 (de) | 1976-07-01 |
FR2153390B1 (es) | 1976-08-13 |
DE2222120A1 (de) | 1973-04-05 |
FR2153390A1 (en) | 1973-05-04 |
IT956627B (it) | 1973-10-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IE39819L (en) | Regeneration of molybdenum - containing catalysts. | |
ES424611A1 (es) | Un procedimiento para la produccion de un catalizador. | |
US3736266A (en) | Preparation of carbon supported palladium catalysts | |
NL169423C (nl) | Werkwijze ter bereiding van katalysatoren die een metallisch katalytisch actief agens en een poreuze drager bevatten. | |
ES404159A1 (es) | Procedimiento para la fabricacion de un catalizador para lafabricacion de la hidroxilamina. | |
CA983877A (en) | Fluid catalytic cracking process with substantially complete combustion of carbon monoxide during regeneration of catalyst | |
GB1377243A (en) | Process for preparing aromatic hydroxyaldehydes | |
US2424086A (en) | Production of olefin oxides | |
ES425221A1 (es) | Procedimiento mejorado para producir 6-desoxitetraciclinas. | |
CA993434A (en) | Process for producing a catalyst for the oxidation of methanol to formaldehyde | |
GB1353482A (en) | Catalytic oxidation process for producing trimellitic acid | |
ES402791A1 (es) | Procedimiento para la preparacion de catalizadores de oxi- dacion. | |
GB1219281A (en) | Improvements relating to catalysts | |
GB1395561A (en) | Process for the production of spherical metal oxide or metal carbide particles | |
GB1439532A (en) | Dense bed after burning a catalystic regeneration zone | |
FR1603515A (en) | Regeneration of catalysts used in the hydro-treatment - of sulphurous hydrocarbon charges containing metallic | |
ES441155A1 (es) | Un procedimiento para preparar una solucion de sal de hidro-xilamonio. | |
GB1382552A (en) | Radiation source material with noble metal coating and method of preparation thereof | |
ES422055A1 (es) | Procedimiento para la preparacion de formaldehido. | |
GB1030423A (en) | Electrodes for alkaline storage batteries | |
GB1197619A (en) | Method of Preparing and Regenerating an Active and Selective Catalyst for the Production of Hydroxylamine Salt. | |
ES388847A1 (es) | Un procedimiento para la recuperacion de metales del grupo del platino arrastrados en una corriente de gases calientes que sale de un lecho de catalizador. | |
Nakao et al. | SODIUM HYDROXIDE-ACTIVATED CATALYST OF COLLOIDAL NICKEL BORIDE FOR ATMOSPHERIC HYDROGENATION OF KETONES AND ALDEHYDES | |
GB1452087A (en) | Process for regenerating a deactivated reforming catalyst | |
FR2119798A1 (en) | Fuel cell electrode - from hydrophobic agent coated active particles |