GB453271A - Improvements in processes of producing tetra ethyl alkyl lead - Google Patents

Improvements in processes of producing tetra ethyl alkyl lead

Info

Publication number
GB453271A
GB453271A GB3459734A GB3459734A GB453271A GB 453271 A GB453271 A GB 453271A GB 3459734 A GB3459734 A GB 3459734A GB 3459734 A GB3459734 A GB 3459734A GB 453271 A GB453271 A GB 453271A
Authority
GB
United Kingdom
Prior art keywords
added
chloride
lead
ethyl
autoclave
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
GB3459734A
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
Priority to GB3459734A priority Critical patent/GB453271A/en
Publication of GB453271A publication Critical patent/GB453271A/en
Expired legal-status Critical Current

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 Table
    • C07F7/24—Lead compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In the preparation of lead tetra-alkyls by interaction of lead mono-sodium alloy with alkyl chloride, the alkyl chloride is first added in only small quantity so as to initiate the reaction, as indicated by a falling pressure and rising temperature, whereupon the remaining alkyl chloride is added as quickly as possible consistent with the avoidance of excessive development of heat. For the production of lead tetra-ethyl, an autoclave fitted with water jackets and stirring mechanism is charged with the alloy and after warming to 35--50 DEG C., a small amount of ethyl chloride is added. When the pressure falls with rising temperature, the bulk of the ethyl chloride is gradually added while cooling the autoclave. The reaction is completed, after all ethyl chloride has been added, by warming the autoclave again. The addition of the bulk of the ethyl chloride may, if desired, be interrupted when about half has been added, the remainder being added after a period of cooling. In the same way lead tetra-methyl and lead tetra-propyl may be prepared. Reference has been directed by the Comptroller to Specification 214,221, [Class 2 (iii)].
GB3459734A 1934-12-01 1934-12-01 Improvements in processes of producing tetra ethyl alkyl lead Expired GB453271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3459734A GB453271A (en) 1934-12-01 1934-12-01 Improvements in processes of producing tetra ethyl alkyl lead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3459734A GB453271A (en) 1934-12-01 1934-12-01 Improvements in processes of producing tetra ethyl alkyl lead

Publications (1)

Publication Number Publication Date
GB453271A true GB453271A (en) 1936-09-01

Family

ID=10367615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3459734A Expired GB453271A (en) 1934-12-01 1934-12-01 Improvements in processes of producing tetra ethyl alkyl lead

Country Status (1)

Country Link
GB (1) GB453271A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464398A (en) * 1946-03-12 1949-03-15 Du Pont Manufacturing tetraethyl lead
US2597754A (en) * 1950-08-16 1952-05-20 Ethyl Corp Manufacture of tetraethyllead
US2727052A (en) * 1950-08-16 1955-12-13 Ethyl Corp Manufacture of tetraethyllead

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464398A (en) * 1946-03-12 1949-03-15 Du Pont Manufacturing tetraethyl lead
US2597754A (en) * 1950-08-16 1952-05-20 Ethyl Corp Manufacture of tetraethyllead
US2727052A (en) * 1950-08-16 1955-12-13 Ethyl Corp Manufacture of tetraethyllead

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