GB716063A - Improvements in or relating to process for making tetraethyllead - Google Patents
Improvements in or relating to process for making tetraethylleadInfo
- Publication number
- GB716063A GB716063A GB9067/52A GB906752A GB716063A GB 716063 A GB716063 A GB 716063A GB 9067/52 A GB9067/52 A GB 9067/52A GB 906752 A GB906752 A GB 906752A GB 716063 A GB716063 A GB 716063A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- per cent
- potassium
- content
- catalysts
- 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
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/24—Lead compounds
Abstract
Tetraethyl lead is prepared by reacting ethyl chloride with a sodium-potassium-lead alloy in which the sodium content is between 5 and 35 weight per cent and the potassium content is from 0.1 to 5 weight per cent, in the presence of a lead alkylating catalyst, at a temperature from 0 DEG to 100 DEG C., under a pressure such that at the temperature used the ethyl chloride is maintained in the liquid phase, and for a time within 1/4 to 8 hours. A large number of lead alkylating catalysts are referred to in the Specification and include anhydrides of carboxylic acids, non-quinonoid ketones containing carbon, hydrogen and oxygen and from 0 to 2 halogen atoms, carboxylic acid esters and amides, acetals, alcohols, ethers, aldehydes, amines, nitriles, peroxides, nitro compounds, esters of nitric and nitrous acids, acid chlorides, isocyanates, isothiocyanates, thioethers, iodine and aluminium chloride. The alkali metal content of the lead alloy may be between 48 and 52 atoms per cent. The amount of potassium present may be between 1 and 2 per cent and the atomic ratio of lead to total alkali metals is 1 to 1. The example illustrates the preparation of tetraethyl lead using a wide range of catalysts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US253131A US2635106A (en) | 1951-10-25 | 1951-10-25 | Process for making tetraethyl lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB716063A true GB716063A (en) | 1954-09-29 |
Family
ID=22959002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9067/52A Expired GB716063A (en) | 1951-10-25 | 1952-04-09 | Improvements in or relating to process for making tetraethyllead |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2635106A (en) |
| DE (1) | DE937350C (en) |
| FR (1) | FR1062517A (en) |
| GB (1) | GB716063A (en) |
| NL (2) | NL171641B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3004998A (en) * | 1959-12-08 | 1961-10-17 | Ethyl Corp | Stable lead alkyl compositions and a method for preparing the same |
| US3239548A (en) * | 1963-01-11 | 1966-03-08 | Du Pont | Process for making tetraethyl lead |
| US3400143A (en) * | 1965-05-17 | 1968-09-03 | Du Pont | Process for making tetramethyl lead |
| US3408375A (en) * | 1965-05-17 | 1968-10-29 | Du Pont | Process for making tetramethyl lead |
| US3401187A (en) * | 1965-06-15 | 1968-09-10 | Du Pont | Process for making tetramethyl lead |
| US3401188A (en) * | 1965-08-05 | 1968-09-10 | Du Pont | Process for making tetramethyl lead |
| US3412123A (en) * | 1966-04-27 | 1968-11-19 | Du Pont | Substituted cyanamide-accelerated tetraethyl lead process |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1717961A (en) * | 1925-10-17 | 1929-06-18 | Du Pont | Process for the production of lead tetra-alkyl |
| US1664021A (en) * | 1926-11-03 | 1928-03-27 | Du Pont | Process of manufacturing tetra-ethyl lead |
| US1749567A (en) * | 1927-10-15 | 1930-03-04 | Du Pont | Alkylated lead |
| US1962173A (en) * | 1928-08-17 | 1934-06-12 | Du Pont | Manufacture of tetraethyl lead |
| US2464397A (en) * | 1945-07-04 | 1949-03-15 | Du Pont | Manufacturing tetraethyl lead |
| US2464399A (en) * | 1946-04-10 | 1949-03-15 | Du Pont | Manufacturing tetraethyl lead |
-
0
- NL NL81236D patent/NL81236C/xx active
- NL NLAANVRAGE7401937,B patent/NL171641B/en unknown
-
1951
- 1951-10-25 US US253131A patent/US2635106A/en not_active Expired - Lifetime
-
1952
- 1952-04-09 GB GB9067/52A patent/GB716063A/en not_active Expired
- 1952-04-23 DE DEE5371A patent/DE937350C/en not_active Expired
- 1952-04-23 FR FR1062517D patent/FR1062517A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL81236C (en) | |
| DE937350C (en) | 1956-01-05 |
| NL171641B (en) | |
| FR1062517A (en) | 1954-04-23 |
| US2635106A (en) | 1953-04-14 |
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