GB1111949A - A process for the production of tetraalkyllead compounds - Google Patents
A process for the production of tetraalkyllead compoundsInfo
- Publication number
- GB1111949A GB1111949A GB33215/65A GB3321565A GB1111949A GB 1111949 A GB1111949 A GB 1111949A GB 33215/65 A GB33215/65 A GB 33215/65A GB 3321565 A GB3321565 A GB 3321565A GB 1111949 A GB1111949 A GB 1111949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- inert
- bed
- mass
- reaction
- 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
- 150000001875 compounds Chemical class 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 6
- 238000006243 chemical reaction Methods 0.000 abstract 3
- 239000011261 inert gas Substances 0.000 abstract 3
- 150000001350 alkyl halides Chemical class 0.000 abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 229910000978 Pb alloy Inorganic materials 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000003701 inert diluent Substances 0.000 abstract 1
- 150000002611 lead compounds Chemical class 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
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 Table
- C07F7/24—Lead compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Tetraalkyl lead compounds are prepared by reacting an alkali metal lead alloy and an alkyl halide, and contacting the reaction mass, in the absence of an aq. liq. phase, with a gas or vapour inert to the reaction products at a temp. of 25-200 DEG C. to vaporize the tetraalkyl lead which is recovered. The inert gas or vapour may be: N2, air, super-heated steam, a rare gas e.g. He, alkyl halides e.g. of 1-5 C atoms and preferably the same as used in the synthesis, or hydrocarbons having e.g. 1-10 C atoms. The velocity of the gas at contact may be from 0.05 ft/sec. to sonic velocity and the pressure may be 20 ins. vac up to 300 p.s.i.g. The reaction may be carried out in the presence of a minor proportion of an inert diluent, e.g. an inert hydrocarbon which may be vaporized with the inert gas and it may be present as 5-25 parts by wt. per 100 parts of Pb in the alloy. The gas and reaction mass may be contracted by fluidizing a bed of the mass with the gas, said bed optionally having an overflow arrangement for the stripped solid, or by feeding the gas through a bed of the mass at a velocity insufficient to support the bed, which may be static or agitated by a stirrer or vibrator. The inert gas may be recycled after removal of the tetraalkyl lead therefrom
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US387487A US3384559A (en) | 1964-08-04 | 1964-08-04 | Tetraalkyllead recovery from an anhydrous reaction mass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1111949A true GB1111949A (en) | 1968-05-01 |
Family
ID=23530091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33215/65A Expired GB1111949A (en) | 1964-08-04 | 1965-08-03 | A process for the production of tetraalkyllead compounds |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3384559A (en) |
| DE (1) | DE1518773B1 (en) |
| FR (1) | FR1441315A (en) |
| GB (1) | GB1111949A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4126789A1 (en) * | 1990-12-19 | 1992-07-02 | Alcor Chem | FUEL ADDITIVE AND METHOD FOR PRODUCING THE SAME |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1975171A (en) * | 1931-03-28 | 1934-10-02 | Du Pont | Process of purifying tetra alkyl lead |
| US2415444A (en) * | 1942-08-21 | 1947-02-11 | George F Ruddies | Process of producing tetraethyl lead |
| BE497579A (en) * | 1949-01-03 | |||
| US2661361A (en) * | 1951-08-22 | 1953-12-01 | Ethyl Corp | Manufacture of tetraethyllead |
| US2723227A (en) * | 1954-06-23 | 1955-11-08 | Du Pont | Process for controlling the properties of lead particles in the distillation of tetraethyl lead |
| IT629076A (en) * | 1959-04-29 | |||
| US3270042A (en) * | 1963-05-28 | 1966-08-30 | Du Pont | Process for purifying tetramethyl lead |
-
1964
- 1964-08-04 US US387487A patent/US3384559A/en not_active Expired - Lifetime
-
1965
- 1965-07-23 DE DE19651518773D patent/DE1518773B1/en active Pending
- 1965-07-28 FR FR26382A patent/FR1441315A/en not_active Expired
- 1965-08-03 GB GB33215/65A patent/GB1111949A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1518773B1 (en) | 1970-08-27 |
| US3384559A (en) | 1968-05-21 |
| FR1441315A (en) | 1966-06-03 |
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