GB900376A - A process for the oxidation of ethylene to ethylene oxide - Google Patents
A process for the oxidation of ethylene to ethylene oxideInfo
- Publication number
- GB900376A GB900376A GB6325/61A GB632561A GB900376A GB 900376 A GB900376 A GB 900376A GB 6325/61 A GB6325/61 A GB 6325/61A GB 632561 A GB632561 A GB 632561A GB 900376 A GB900376 A GB 900376A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxygen
- ethylene
- argon
- ratio
- proportion
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
- C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
- C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
-
- 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
- B01J23/48—Silver or gold
- B01J23/50—Silver
-
- 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
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/66—Silver or gold
-
- 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
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/66—Silver or gold
- B01J23/68—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/688—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with manganese, technetium or rhenium
Abstract
Ethylene is oxidised to ethylene oxide at an elevated temperature in the presence of a silver catalyst by a molecular oxygen-containing gas obtained from air by distillation and which has a molar concentration of oxygen of at least 85% and in which the proportion of argon has been reduced substantially with respect to the proportion normally present. Preferably the concentrations of nitrogen and argon in the oxygen-containing gas are such that the ratio <FORM:0900376/IV (b)/1> , in which A is the number of moles of argon and N2 the number of moles of nitrogen in the mixture, is not greater than 0.6. These preferred oxygen-containing mixtures may for instance, be obtained by separating from air a fraction with a high oxygen content having a value for the ratio <FORM:0900376/IV (b)/2> in excess of 0.6 and diluting the mixture with air until the ratio has a value below 0.6, preferably about 0.1, while keeping the molar proportion of oxygen above 85%.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1039460A | 1960-02-23 | 1960-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB900376A true GB900376A (en) | 1962-07-04 |
Family
ID=21745569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6325/61A Expired GB900376A (en) | 1960-02-23 | 1961-02-21 | A process for the oxidation of ethylene to ethylene oxide |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE600422A (en) |
| CH (1) | CH426754A (en) |
| GB (1) | GB900376A (en) |
-
1961
- 1961-02-21 BE BE600422A patent/BE600422A/en unknown
- 1961-02-21 GB GB6325/61A patent/GB900376A/en not_active Expired
- 1961-02-21 CH CH206361A patent/CH426754A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH426754A (en) | 1966-12-31 |
| BE600422A (en) | 1961-08-21 |
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