GB707075A - Improvements in or relating to the manufacture of tetraalkyllead compounds - Google Patents
Improvements in or relating to the manufacture of tetraalkyllead compoundsInfo
- Publication number
- GB707075A GB707075A GB14208/51A GB1420851A GB707075A GB 707075 A GB707075 A GB 707075A GB 14208/51 A GB14208/51 A GB 14208/51A GB 1420851 A GB1420851 A GB 1420851A GB 707075 A GB707075 A GB 707075A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- alloy
- alkyl
- sodium
- bromide
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910000978 Pb alloy Inorganic materials 0.000 abstract 5
- WBLCSWMHSXNOPF-UHFFFAOYSA-N [Na].[Pb] Chemical compound [Na].[Pb] WBLCSWMHSXNOPF-UHFFFAOYSA-N 0.000 abstract 4
- 150000001350 alkyl halides Chemical class 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 239000000956 alloy Substances 0.000 abstract 2
- 150000001735 carboxylic acids Chemical class 0.000 abstract 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- NAMYKGVDVNBCFQ-UHFFFAOYSA-N 2-bromopropane Chemical compound CC(C)Br NAMYKGVDVNBCFQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910000528 Na alloy Inorganic materials 0.000 abstract 1
- 229910020507 Na4Pb Inorganic materials 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 abstract 1
- -1 aliphatic aldehydes Chemical class 0.000 abstract 1
- 150000001408 amides Chemical class 0.000 abstract 1
- 150000008064 anhydrides Chemical class 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 abstract 1
- DENRZWYUOJLTMF-UHFFFAOYSA-N diethyl sulfate Chemical compound CCOS(=O)(=O)OCC DENRZWYUOJLTMF-UHFFFAOYSA-N 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 229960003750 ethyl chloride Drugs 0.000 abstract 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229940102396 methyl bromide Drugs 0.000 abstract 1
- 229940050176 methyl chloride Drugs 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Tetra-alkyl lead is prepared by reacting an alloy of lead with an alkyl halide or sulphate at an elevated temperature, characterized by using a sodium-lead alloy in the form of flakes having at least one surface comprising predominantly the projecting natural faces of identifiable octahedral crystals projecting from a common base. The alloy is preferably a monosodium lead alloy in the form of flakes of from 0.01 to 0.05 inches mean thickness (although a mean thickness from about 0.008 to about 0.12 inches is satisfactory) and 1/8 to 1/4 inch in maximum dimension. The reaction may be carried out at a temperature in the range of 70 DEG to 100 DEG C., and the reaction period may be between 5 and 30 minutes. A liquid alkyl halide may be used in excess for the reaction. The axial dimensions of the identifiable crystals of the sodium-lead alloy used may be from 10 to 50 per cent of the arithmetic mean thickness of the flake. A suitable method for preparing the alloy is given in Specification 707,074. Catalysts or accelerators normally used in tetra-alkyl lead formation can be used in the above process, e.g. anhydrides of carboxylic acids, non-quinoidal ketones such as acetone, esters of carboxylic acids, amides, acetals and aliphatic aldehydes. Other lead-sodium alloys apart from monosodium lead alloy which may be used are of the composition Na2Pb, Na9Pb4 and Na4Pb. Alkyl halides or sulphates which may be used are methyl chloride and bromide, ethyl chloride, bromide and iodide, isopropyl bromide and diethyl sulphate. A number of examples are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US707075XA | 1950-08-31 | 1950-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB707075A true GB707075A (en) | 1954-04-14 |
Family
ID=22096902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14208/51A Expired GB707075A (en) | 1950-08-31 | 1951-06-15 | Improvements in or relating to the manufacture of tetraalkyllead compounds |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE505156A (en) |
| DE (1) | DE914377C (en) |
| FR (1) | FR1050289A (en) |
| GB (1) | GB707075A (en) |
-
0
- BE BE505156D patent/BE505156A/xx unknown
-
1951
- 1951-06-15 GB GB14208/51A patent/GB707075A/en not_active Expired
- 1951-06-25 FR FR1050289D patent/FR1050289A/en not_active Expired
- 1951-06-26 DE DEE3925A patent/DE914377C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE505156A (en) | |
| FR1050289A (en) | 1954-01-06 |
| DE914377C (en) | 1954-07-01 |
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