US1979254A - Lead-sodium alloy - Google Patents
Lead-sodium alloy Download PDFInfo
- Publication number
- US1979254A US1979254A US708248A US70824834A US1979254A US 1979254 A US1979254 A US 1979254A US 708248 A US708248 A US 708248A US 70824834 A US70824834 A US 70824834A US 1979254 A US1979254 A US 1979254A
- Authority
- US
- United States
- Prior art keywords
- lead
- sodium
- alloy
- composition
- magnesium
- 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 - Lifetime
Links
- 229910000528 Na alloy Inorganic materials 0.000 title description 6
- 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 description 15
- 239000011734 sodium Substances 0.000 description 15
- 229910052708 sodium Inorganic materials 0.000 description 15
- 239000000203 mixture Substances 0.000 description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 10
- 239000011777 magnesium Substances 0.000 description 10
- 229910052749 magnesium Inorganic materials 0.000 description 10
- 125000000217 alkyl group Chemical group 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- MRMOZBOQVYRSEM-UHFFFAOYSA-N tetraethyllead Chemical compound CC[Pb](CC)(CC)CC MRMOZBOQVYRSEM-UHFFFAOYSA-N 0.000 description 7
- 238000004821 distillation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 4
- 229960003750 ethyl chloride Drugs 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- -1 alkyl lead compounds Chemical class 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 239000003223 protective agent Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 206010013647 Drowning Diseases 0.000 description 1
- 241001446467 Mama Species 0.000 description 1
- FCSHMCFRCYZTRQ-UHFFFAOYSA-N N,N'-diphenylthiourea Chemical compound C=1C=CC=CC=1NC(=S)NC1=CC=CC=C1 FCSHMCFRCYZTRQ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229960005382 phenolphthalein Drugs 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C11/00—Alloys based on lead
- C22C11/02—Alloys based on lead with an alkali or an alkaline earth metal as the next major constituent
Definitions
- This invention relatestoanimprovementinthe of lead alkyl compounds, higher yields of the production of lead alkyls by the reaction of alkyl lead alkyl compounds result, thepomposition is halides upon a lead sodium alloy, and more parmore completely decomposed during the reaction, ticularly to the alloys employed in such process. and agglomeration of the lead particles during 5
- a lead sodium alloy consisting of quiring the use of a protective or dispersing agent. 90% lead and sodium is reacted with ethyl
- composition of matter chloride to form a dry reaction mass containing is employed in the production of tetra ethyl lead
- lead alkyl absorbed by finely divided lead sodium yields of from about 85% to 88% are obtained halide and a appreciable amount of undecomand the amount .of undecomposed composition posed alloy.
- the lead alkyl is recovered from the in the reaction mass at the completion of the remass by drowning in water and distilling out the action amounts to from 4% to 0%, both the yield lead alkyl by means of steam.
- a further object is to provide anew comof water and the lead ethyl distilled off, with position of matter in the nature 01' 8-11 a y to be steam.
- the weight of lead ethyl recovered was used in such process which composition of mat- 29.2 grams, equivalent to 84.3% yield, based on 9 40 ter is substantially completely decomposed durthe sodium.
- composition of matter comprising 10% sodium, 89.95% to 89.00% lead and 0.05% to 1.00% magnesium.
- composition of matter comprising 10% sodium, from. about 89.85% to 89.80% lead and from about 0.15% to 0.20% .magnesium.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Patented Nov. 6, 1934 UNITED STAT S PATENT OFFICE 1,979,254 LEAD-SODIUM ALLOY Frederick Baxter Downing, Carneys Point, and Louis S. Bake, Pennsgrove, N. 1., assignors to E. I. du Pont de 'Nemours & Company, Wilmington, DeL, a corporation of Delaware No Drawing. Application January 25, 1934, @erial No. 708,248
2 ctnims. (Cl. 75-1) This invention relatestoanimprovementinthe of lead alkyl compounds, higher yields of the production of lead alkyls by the reaction of alkyl lead alkyl compounds result, thepomposition is halides upon a lead sodium alloy, and more parmore completely decomposed during the reaction, ticularly to the alloys employed in such process. and agglomeration of the lead particles during 5 In the process as ordinarily practiced at the distillation is practically eliminated without re- 00 present time a lead sodium alloy consisting of quiring the use of a protective or dispersing agent. 90% lead and sodium is reacted with ethyl For example, when such composition of matter chloride to form a dry reaction mass containing is employed in the production of tetra ethyl lead,
lead alkyl absorbed by finely divided lead, sodium yields of from about 85% to 88% are obtained halide and a appreciable amount of undecomand the amount .of undecomposed composition posed alloy. The lead alkyl is recovered from the in the reaction mass at the completion of the remass by drowning in water and distilling out the action amounts to from 4% to 0%, both the yield lead alkyl by means of steam. By the use of such of tetra ethyl lead and the amount of undeprocess, employing ethyl chloride, yields of from composed composition depending upon the 83%, to 85% of tetra ethyl lead have been obamount of magnesium present in the composition tained in the laborat ry. wi amounts about employed. It has been found that as little as 5% to 10% of the alloy left unclecomposed. Such 0.1% of magnesium in the composition is sufliundecomposed sodium tends to cause trouble in cient to practically eliminate all agglomeration the recovery of the alkyl lead compounds by steam of lead particles during the distillation, which distillation, due to the fact that the undecomappears to be due to the fact that a much more posed sodium reacts with the water in which the complete reaction is obtained with less undecomreaction mass is drowned with the result that the posed composition present in the reaction mass.
metallic lead tends to form large balls, cakes or How v r, w preferably employ from b t 0.15%
rin whi h l w r he r c v y of h kyl l to 0.4% of magnesium as such amount gives most 95 and are removed from the still only with great satisfactory results.
difficulty. In order to eliminate this balling of In order to more clearly point out our inventhe lead, as much as possible, it has been nec tion .and illustrate the preferred mode in which sary to add a protective agent such as, for exwe contemplate carrying the same into effect, the ample, thiocarbanilide or a dispersing agent such following examples are given:
as engine oil, or both, to the reaction mass dur- Example 1.One hundred (100) grams of a ing distillation. However, these expedients have lead-sodium alloy containing lead and 10% n t proved to be entirely sat f o y s a ar e sodium by weight, equivalent to equal molecular percentage of the distillations give trouble even proportions of the two meta1s,were r a t d with in the presence of these substances. 50 cc. of ethyl chloride in a small pressure auto- 35 An object of th p esent inventi n is t pr clave in a water bath of 75 c. for 5 hours. The vide a process wherein these difllculties are elimi resultant reaction mass was drowned in 500 cc. nated. A further object is to provide anew comof water and the lead ethyl distilled off, with position of matter in the nature 01' 8-11 a y to be steam. The weight of lead ethyl recovered was used in such process which composition of mat- 29.2 grams, equivalent to 84.3% yield, based on 9 40 ter is substantially completely decomposed durthe sodium.
ing the reaction and has no tendency to cause The unreacted sodium whi h wa present as balling or caking of the metallic lead. Still fursodium hydroxide in the residue from the steam ther objects are to provide a new composition of distillation was determined by titration with matter and to advance the art. Other and further standard acid solution and the results calculated objects will appear hereinafter. as sodium. This unreacted sodium was found to These objects may be accomplished according be 0.51 grams or 5.1%. to our invention which comprises substituting for Example 2.-Onehundred (100) grams of maga small proportion of the lead, in the lead sodium nesium bearing lead sodium alloy consisting of alloy of the process as heretofore practiced, a 89.6% lead, 10% sodium and 0.4% magnesium 505 small amount of magnesium. We have found were reacted with 50 cc. of ethyl chloride and the that when amounts of magnesium varying from lead ethyl recovered in the same manner as're- 0.05% to 1.0% of the weight of the alloy is subcited in Example 1. The yield of the lead ethyl stituted for an equivalent weight of the lead in was found to be 30.98 grams or 88.1% based on the preparation of the alloy and such new comthe sodium.
position of matter is used in the manufacture No unreacted sodium was present in the reaction mass as shown by the fact that the residue from the steam distillation to remove the lead tetra ethyl, was neutral to phenol phthalein.
The results obtainable by varying the amounts of lead and magnesium in the composition'are shown in the following table:
in the composition appears to be mostdesirable from a theoretical standpoint, we have found that, for practical purposes, the use of from about 0.15% to 0.2% of magnesium is preferable as larger amounts introduce certain problems into novel alloy may of lead alkyls generally,
mama
the manufacture of the composition and the recovery of the alkyl lead compounds.
While, in the above examples, we cally referred ethyl chloride, it is to be understood .that our with similar results. Many variations and modifications in the process as described will readily appear to those skilled in the art without departing from the spirit of our invention. Accordingly, the scope of. our invention is to be limited solely by the appended claims construed as broadly as is permissible in view of the prior art.
We claim:
1. A composition of matter comprising 10% sodium, 89.95% to 89.00% lead and 0.05% to 1.00% magnesium. I
2. A composition of matter comprising 10% sodium, from. about 89.85% to 89.80% lead and from about 0.15% to 0.20% .magnesium.
FREDERICK BAXTER DOWNING. LOUIS s. BAKE.
have speciflto the reaction of the alloy with be employed in the production
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US708248A US1979254A (en) | 1934-01-25 | 1934-01-25 | Lead-sodium alloy |
| DEP70637D DE660442C (en) | 1934-01-25 | 1935-01-22 | Process for the production of lead alkylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US708248A US1979254A (en) | 1934-01-25 | 1934-01-25 | Lead-sodium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1979254A true US1979254A (en) | 1934-11-06 |
Family
ID=24845006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US708248A Expired - Lifetime US1979254A (en) | 1934-01-25 | 1934-01-25 | Lead-sodium alloy |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1979254A (en) |
| DE (1) | DE660442C (en) |
-
1934
- 1934-01-25 US US708248A patent/US1979254A/en not_active Expired - Lifetime
-
1935
- 1935-01-22 DE DEP70637D patent/DE660442C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE660442C (en) | 1938-05-25 |
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