US1944167A - Alloy for use in the manufacture of tetraethyl lead - Google Patents

Alloy for use in the manufacture of tetraethyl lead Download PDF

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Publication number
US1944167A
US1944167A US401621A US40162129A US1944167A US 1944167 A US1944167 A US 1944167A US 401621 A US401621 A US 401621A US 40162129 A US40162129 A US 40162129A US 1944167 A US1944167 A US 1944167A
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United States
Prior art keywords
lead
alloy
manufacture
tetraethyl lead
matter
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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 - Lifetime
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US401621A
Inventor
William S Calcott
Alfred E Parmelee
Homer F Meschter
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EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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Publication date
Priority claimed from US300370A external-priority patent/US1962173A/en
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to US401621A priority Critical patent/US1944167A/en
Application granted granted Critical
Publication of US1944167A publication Critical patent/US1944167A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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 Table
    • C07F7/24Lead compounds

Definitions

  • This invention relates to compositions of matter for use in the manufacture of tetraethyl lead and more particularly to a new composition of matter of lead and sodium containing an activating metal chloride.
  • composition of matter is then treated with ethyl chloride under pressure at temperatures varying between 35 and 90 C.
  • a new composition of matter for use in the production of alkyl lead compounds which comprises the product obtained by melting together substantially 10 parts sodium, 90 parts lead and 001 part of one of the members of the group consisting of aluminum chlorideand ferric chloride.
  • a new composition of matter for use in the production of alkyl lead compound which comprises the product obtained by melting together substantially 10 parts sodium, 90 parts lead, and
  • a composition of matter for use in the production of alkyl lead compounds which comprises the product obtained by melting together substantially 10 parts sodium, 90 parts lead, and 0.01 part ferric chloride.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)

Description

Patented .Ian. 23, 1934 I OFFICE, I
ALLOY FOR USE IN THE MANUFACTURE OF LEAD TETRAETHYL William S. Calcott, Penns Grove,
Point,
Parmelee, Carneys Meschter, Penns Grove, du Pont de Nemours &
and Alfred E.
and Homer F.
N. .L, assignors to E. 1.
Company, Wilmington,
Del., a corporation of Delaware No Drawing. Original application August 17,
1928, Serial No. 300,370. Divided andthis application October 3 Claims.
This invention relates to compositions of matter for use in the manufacture of tetraethyl lead and more particularly to a new composition of matter of lead and sodium containing an activating metal chloride.
This application is a division of our copending application Serial No. 300,370, filed August 17, 1928.
Thesuccessful production of tetraethyl lead 10 by the'interaction of lead mono-sodium alloy with ethyl-chloride depends upon the speed with which the reaction can be started and maintained at relatively low temperatures. It has been the practice to treat lead mono-sodium alloy with ethyl chloride under pressure, at temperatures varying between and 100 C. By this procedure it has been possible to obtain yields of 80% of the theoretical. V
Wehave now discovered that if very small amounts of certain inorganic salts, such as chlorides of aluminum or iron, are added to the lead sodium alloy, either during its formation or by remelting the already formed alloy and incorporating therewith the desired compound, the al- 5 loy is activated and higher yields of tetraethyl lead may be obtained when this new composition of matter issubjected to the reaction conditions ordinarily employed in the manufacture of tetraethyl lead from lead sodium alloy and ethyl chloride.
- The following example indicates by way of illustration one embodiment of our invention:
10 grams of sodium, 90 grams of lead and 0.01 gram of aluminum chloride are placed together in a suitable vessel and heated until the whole mass becomes liquid. The liquid mass is then agitated in any manner desired to secure thorough mixing and is subsequently cooled. The cold composition of matter is then reduced to a powder and is placed in areaction vessel capable of withstanding pressure. of fineness oi the powder is not an essentialiea- (Althoughthe degree 22, 1929. Serial No. 401,621
ture, we prefer to employ a coarse'powder for this purpose.) The composition of matter is then treated with ethyl chloride under pressure at temperatures varying between 35 and 90 C.
It will be understood that the conditions of pressure and temperature may vary as is usual in the known processes of manufacturing tetraethyl lead and for this reason the details of the usual reaction conditions, and of the recovery of tetraethyl lead from the reaction mass, are not given because they are unessential' here. Our'improvement lies in the presence of a metal chloride in the alloy, irrespective of the particular conditions employed for the production or tetraethyl lead using ethyl chloride. 'It will be apparent that other embodiments of this invention exist and may be practiced with out departing from the-spirit thereof, and it is understoodthat we do not limit ourselves to the foregoing example or description except as indicated in the following patent claims.
We claim:
1. A new composition of matter for use in the production of alkyl lead compounds which comprises the product obtained by melting together substantially 10 parts sodium, 90 parts lead and 001 part of one of the members of the group consisting of aluminum chlorideand ferric chloride.
2. A new composition of matter for use in the production of alkyl lead compound which comprises the product obtained by melting together substantially 10 parts sodium, 90 parts lead, and
.01 part aluminum chloride.
3. A composition of matter for use in the production of alkyl lead compounds which comprises the product obtained by melting together substantially 10 parts sodium, 90 parts lead, and 0.01 part ferric chloride.
WILLIAM S. CALCOTI. .ALFRED E. PARMEIEE- HOMERE. MESCHTER.
CERTIFICATE OF CGRRECTION.
Patent No. 1,944,167. Jenodry 23, 1934;
WILLIAM s. GALGOTT, ET AL.
lt is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Line 93, claim 3, for
"0.01" read 0,1; and that the said Letters Patent shonld be read with this correclion therein that the same may conform to the record oithe case in the Patent Office.
Signed and sealed this law day of March, A. p. 1934;
} F. M. Hopkins (Seal) Acting Commissioner of Patents.
US401621A 1928-08-17 1929-10-22 Alloy for use in the manufacture of tetraethyl lead Expired - Lifetime US1944167A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US401621A US1944167A (en) 1928-08-17 1929-10-22 Alloy for use in the manufacture of tetraethyl lead

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US300370A US1962173A (en) 1928-08-17 1928-08-17 Manufacture of tetraethyl lead
US401621A US1944167A (en) 1928-08-17 1929-10-22 Alloy for use in the manufacture of tetraethyl lead

Publications (1)

Publication Number Publication Date
US1944167A true US1944167A (en) 1934-01-23

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US401621A Expired - Lifetime US1944167A (en) 1928-08-17 1929-10-22 Alloy for use in the manufacture of tetraethyl lead

Country Status (1)

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