GB1015227A - Process for making tetramethyl lead - Google Patents

Process for making tetramethyl lead

Info

Publication number
GB1015227A
GB1015227A GB27569/64A GB2756964A GB1015227A GB 1015227 A GB1015227 A GB 1015227A GB 27569/64 A GB27569/64 A GB 27569/64A GB 2756964 A GB2756964 A GB 2756964A GB 1015227 A GB1015227 A GB 1015227A
Authority
GB
United Kingdom
Prior art keywords
alloy
methyl chloride
per mole
mole
ammonia
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
Application number
GB27569/64A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1015227A publication Critical patent/GB1015227A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic System
    • C07F7/24Lead compounds

Abstract

Tetramethyl lead is prepared by the reaction of a monosodium lead alloy with at least one mole of methyl chloride per mole of alloy at a temperature of from - 20 DEG to 120 DEG C. in the presence of from 0.01 to 1.5 moles of ammonia per mole of alloy. Advantageously there may also be present up to 0.04 moles of water per mole of alloy provided the amount of water does not exceed 0.3% by weight of the methyl chloride, and up to 0.04 moles per mole of alloy of a monohydroxylic organic compound ROH, wherein R is a hydrocarbon or oxahydrocarbon radical containing 1 to 18 carbon atoms. Preferably ROH is methanol. The methyl chloride may contain up to 5 mole per cent methyl iodide. The reactants may be introduced separately or together, all at once or gradually into the reaction vessel. The ammonia and co-catalyst components may be added as such or in a carrier which may be the methyl chloride or an inert solvent such as toluene or iso-octane which also acts as a thermal stabilizer. The ammonia may be gaseous or liquid. 1 to 5% of graphite may be present as a lubricant, and the reaction may take place under a pressure of 100-300 p.s.i.g. The product is recovered by conventional methods.
GB27569/64A 1963-07-05 1964-07-03 Process for making tetramethyl lead Expired GB1015227A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US293138A US3281442A (en) 1963-07-05 1963-07-05 Process for making tetramethyl lead

Publications (1)

Publication Number Publication Date
GB1015227A true GB1015227A (en) 1965-12-31

Family

ID=23127806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27569/64A Expired GB1015227A (en) 1963-07-05 1964-07-03 Process for making tetramethyl lead

Country Status (4)

Country Link
US (1) US3281442A (en)
DE (1) DE1234721B (en)
FR (1) FR1406132A (en)
GB (1) GB1015227A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426056A (en) * 1965-02-24 1969-02-04 Du Pont Process for making tetramethyl 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
US3401189A (en) * 1966-02-07 1968-09-10 Du Pont Tetramethyl lead manufacture
US3413328A (en) * 1966-06-01 1968-11-26 Du Pont Tetramethyl lead process
US3956176A (en) * 1970-03-25 1976-05-11 Ppg Industries, Inc. Catalyst for preparation of tetramethyl lead in reaction of methyl halide and sodium-lead alloy

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559405A (en) * 1922-10-05 1925-10-27 Du Pont Process of making tetra-alkyl lead
US1622228A (en) * 1923-05-19 1927-03-22 Gen Motors Corp Process of making organic lead compounds
US1661809A (en) * 1924-03-25 1928-03-06 Du Pont Process of making tetra-alkyl lead
US3088920A (en) * 1960-04-26 1963-05-07 Du Pont Process for treating tetraalkyllead compositions
US3072694A (en) * 1960-11-15 1963-01-08 Du Pont Process for making tetramethyl lead
US3072695A (en) * 1960-11-25 1963-01-08 Du Pont Process for making tetramethyl lead

Also Published As

Publication number Publication date
FR1406132A (en) 1965-07-16
DE1234721B (en) 1967-02-23
US3281442A (en) 1966-10-25

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