GB712644A - Improvements in or relating to manufacture of tetraethyllead - Google Patents
Improvements in or relating to manufacture of tetraethylleadInfo
- Publication number
- GB712644A GB712644A GB887/51A GB8875152A GB712644A GB 712644 A GB712644 A GB 712644A GB 887/51 A GB887/51 A GB 887/51A GB 8875152 A GB8875152 A GB 8875152A GB 712644 A GB712644 A GB 712644A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- solids
- liquid
- alloy
- reactor
- 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
- MRMOZBOQVYRSEM-UHFFFAOYSA-N tetraethyllead Chemical compound CC[Pb](CC)(CC)CC MRMOZBOQVYRSEM-UHFFFAOYSA-N 0.000 title abstract 12
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000007787 solid Substances 0.000 abstract 10
- 229910000978 Pb alloy Inorganic materials 0.000 abstract 8
- 239000007788 liquid Substances 0.000 abstract 8
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 abstract 5
- 229960003750 ethyl chloride Drugs 0.000 abstract 5
- WBLCSWMHSXNOPF-UHFFFAOYSA-N [Na].[Pb] Chemical compound [Na].[Pb] WBLCSWMHSXNOPF-UHFFFAOYSA-N 0.000 abstract 3
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- 239000000956 alloy Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 2
- 239000012021 ethylating agents Substances 0.000 abstract 2
- 239000002002 slurry Substances 0.000 abstract 2
- 229910052708 sodium Inorganic materials 0.000 abstract 2
- 239000011734 sodium Substances 0.000 abstract 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- XJEFDEMQZDDYPX-UHFFFAOYSA-N [Na].[Na].[Pb] Chemical compound [Na].[Na].[Pb] XJEFDEMQZDDYPX-UHFFFAOYSA-N 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 229910000573 alkali metal alloy Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- DENRZWYUOJLTMF-UHFFFAOYSA-N diethyl sulfate Chemical compound CCOS(=O)(=O)OCC DENRZWYUOJLTMF-UHFFFAOYSA-N 0.000 abstract 1
- 125000004494 ethyl ester group Chemical group 0.000 abstract 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 238000009828 non-uniform distribution Methods 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 238000011084 recovery 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)
- Manufacture And Refinement Of Metals (AREA)
Abstract
<PICT:0712644/IV (b)/1> Tetraethyl lead is prepared by a continuous process which comprises feeding an alkali metal alloy of lead and a liquid ethyl ester of an inorganic acid to a reaction zone in excess over the quantity required to form tetraethyl lead, and agitating the mixture sufficiently to maintain the reacting and reacted solids in nonuniform distribution in a liquid so that the concentration of solids decreases from the bottom of the reactor upwards, the liquid comprising a solution of tetraethyl lead in the ethylating agent, said liquid being of uniform composition throughout the reaction zone, and withdrawing at a point remote from the bottom of the reaction zone a slurry of solids in the liquid, said solids being more highly ethylated or contain more reacted solids than the solids at the bottom of the reactor. The ethylating agent may be ethyl chloride, bromide or iodide, or diethyl sulphate. The alloy may be fed to the reactor as a comminuted solid or as a liquid. Monosodium-lead alloy is the preferred lead alloy although other lead alloys may be used, e.g. the disodium-lead alloy or other lead alloys containing greater or smaller proportions of sodium. Other alkali metals may replace or partially replace sodium in the lead alloys, e.g. potassium may be present. Ethyl chloride and monosodium-lead alloy may be fed to the reaction zone in the proportion of at least 2 parts by weight of ethyl chloride to 1 part by weight of alloy, the preferred point at which the slurry of solids is withdrawn being in the upper 50 per cent of the total depth of the reaction mass so that a liquid to solids weight ratio within the reaction zone of at least 3 : 1 to 5 : 1 is obtained. A suitable apparatus for carrying out the process is shown in the Figure. Ethyl chloride is fed from tank 2 through pipe 3 and the alloy is fed from hopper 4 via the pressurized chamber 5 and conveyer 8 into the reactor 1, both the hopper and pressurized chamber having an inert gas atmosphere. The reactor is fitted with a jacket 23 for a heat transfer media introduced through line 24 and discharged from 25. Propeller type agitators 29, 30 and 31 and bottom plate element 32 are mounted on shaft 33. The ethylated mixture is discharged through one or more nozzles 131, 132, 133, 134, 135 and 136 into the solids-liquid separator 16, the solids being removed through line 17 and the liquid phase is removed through line 18 for the recovery of tetraethyl lead. In an example, tetraethyl lead is prepared from ethyl chloride and monosodium-lead alloy in the apparatus illustrated in the Figure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US244514A US2644827A (en) | 1951-08-31 | 1951-08-31 | Manufacture of tetraethyllead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB712644A true GB712644A (en) | 1954-07-28 |
Family
ID=22923066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB887/51A Expired GB712644A (en) | 1951-08-31 | 1952-01-11 | Improvements in or relating to manufacture of tetraethyllead |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2644827A (en) |
| DE (1) | DE940297C (en) |
| FR (1) | FR1134292A (en) |
| GB (1) | GB712644A (en) |
| NL (2) | NL171479B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2856419A (en) * | 1953-04-15 | 1958-10-14 | Ethyl Corp | Manufacture of tetraethyllead |
| US2777867A (en) * | 1953-08-03 | 1957-01-15 | Ethyl Corp | Recovery of alkyllead compounds |
| US2777866A (en) * | 1953-08-17 | 1957-01-15 | Ethyl Corp | Recovery of tetraalkyl-lead compounds |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2091114A (en) * | 1934-10-27 | 1937-08-24 | Du Pont | Process of making tetra-alkyl lead |
| FR963005A (en) * | 1947-03-11 | 1950-06-28 |
-
0
- NL NL86974D patent/NL86974C/xx active
- NL NLAANVRAGE7202485,B patent/NL171479B/en unknown
-
1951
- 1951-08-31 US US244514A patent/US2644827A/en not_active Expired - Lifetime
-
1952
- 1952-01-10 FR FR1134292D patent/FR1134292A/en not_active Expired
- 1952-01-11 GB GB887/51A patent/GB712644A/en not_active Expired
- 1952-06-26 DE DEE5671A patent/DE940297C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL86974C (en) | |
| DE940297C (en) | 1956-03-15 |
| US2644827A (en) | 1953-07-07 |
| FR1134292A (en) | 1957-04-09 |
| NL171479B (en) |
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