NL27137C - - Google Patents
Info
- Publication number
- NL27137C NL27137C NL27137DA NL27137C NL 27137 C NL27137 C NL 27137C NL 27137D A NL27137D A NL 27137DA NL 27137 C NL27137 C NL 27137C
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/78—Preparation by contact processes characterised by the catalyst used
- C01B17/79—Preparation by contact processes characterised by the catalyst used containing vanadium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US317396XA | 1928-08-15 | 1928-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL27137C true NL27137C (ja�@�@) |
Family
ID=21861125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL27137D NL27137C (ja�@�@) | 1928-08-15 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR678680A (ja�@�@) |
| GB (1) | GB317396A (ja�@�@) |
| NL (1) | NL27137C (ja�@�@) |
-
0
- NL NL27137D patent/NL27137C/xx active
-
1929
- 1929-07-09 GB GB21012/29A patent/GB317396A/en not_active Expired
- 1929-07-18 FR FR678680D patent/FR678680A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB317396A (en) | 1930-10-09 |
| FR678680A (fr) | 1930-04-03 |