SU43634A1 - Sodium hydride method - Google Patents
Sodium hydride methodInfo
- Publication number
- SU43634A1 SU43634A1 SU161739A SU161739A SU43634A1 SU 43634 A1 SU43634 A1 SU 43634A1 SU 161739 A SU161739 A SU 161739A SU 161739 A SU161739 A SU 161739A SU 43634 A1 SU43634 A1 SU 43634A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sodium hydride
- amide
- sodium
- hydride
- hydride method
- Prior art date
Links
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 title description 5
- 229910000104 sodium hydride Inorganic materials 0.000 title description 5
- 239000012312 sodium hydride Substances 0.000 title description 5
- 238000000034 method Methods 0.000 title description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 150000001408 amides Chemical class 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 150000004678 hydrides Chemical class 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 150000001540 azides Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
2, Из азида натри по реакции: 2МаМз4-Н2 - 3Nj + 3NaH2, From sodium azide by the reaction: 2MaMz4-H2 - 3Nj + 3NaH
с выделением элементарного азота.with the release of elemental nitrogen.
Примен етс гидрид натри дл фотоэлементов , в электронных трубках, в телеграфии дл передачи изображений на рассто ние и пр.Sodium hydride is used for photocells, in electron tubes, in telegraphy, to transmit images at a distance, etc.
Насто щим предлагаетс новый способ получени гидрида натри из амида натри при его гидрировании по схеме:A new method for the production of sodium hydride from sodium amide with its hydrogenation according to the following scheme is proposed:
NaNHs + Hj - МаН + МНд,NaNHs + Hj - Man + MND,
причем реакци идет с выделением аммиака , а не элементарного азота, как в случае азидов.moreover, the reaction proceeds with the release of ammonia, and not elemental nitrogen, as in the case of azides.
(75(75
Тепловой эффект данной реакции имеет знак минус. Это означает, что течение ее возможно при повыщении температуры .The heat effect of this reaction has a minus sign. This means that its flow is possible when the temperature rises.
Действительно, если при температуре плавлени амида натри в расплав барботировать водород, то происходит указанна химическа реакци с выделением газообразного аммиака. Эта реакци лучше всего проходит в железном сосуде при температурах ниже 300°. При загрузке амида натри в 50 г следует пропустить до 10 г водорода, причем 60% амида превращаетс в гидрид .Indeed, if, at the melting point of sodium amide, hydrogen is bubbled into the melt, this chemical reaction occurs with the release of gaseous ammonia. This reaction is best performed in an iron vessel at temperatures below 300 °. When loading sodium amide in 50 g, up to 10 g of hydrogen should be omitted, with 60% of the amide being converted to hydride.
Разделение остатка, содержащего гидрид натри и не прореагировавщий амид натри производитс выщелачиванием жидким аммиаком, так как гидрид растворим , а амид-нет. Не прореагировавший амид вновь подвергаетс гидрированию .The separation of the residue containing sodium hydride and unreacted sodium amide is carried out by leaching with liquid ammonia, since the hydride is soluble, but the amide is not. The unreacted amide is again subjected to hydrogenation.
Главным преимуществом данного способа вл етс то обсто тельство, что расходуемое сырье-амид натри в насто щее врем может быть легко получен большой чистоты (авт. свид. №40338) и притом с весьма благопри тной экономикой .The main advantage of this method is the fact that the consumed raw material sodium amide can now be easily obtained of high purity (ed. No. 40338) and, moreover, with a very favorable economy.
Предмет изобретени .The subject matter of the invention.
Способ получени гидрида натри , отличающийс тем, что расплавленный амид натри при температуре не выше 300 обрабатывают водородом и полученный гидрид отдел ют от не прореагировавшего амида экстрагированием жидким аммиаком.A method of producing sodium hydride, characterized in that the molten sodium amide at a temperature not higher than 300 is treated with hydrogen and the resulting hydride is separated from unreacted amide by extraction with liquid ammonia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU161739A SU43634A1 (en) | 1935-01-28 | 1935-01-28 | Sodium hydride method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU161739A SU43634A1 (en) | 1935-01-28 | 1935-01-28 | Sodium hydride method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU43634A1 true SU43634A1 (en) | 1935-07-31 |
Family
ID=48358084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU161739A SU43634A1 (en) | 1935-01-28 | 1935-01-28 | Sodium hydride method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU43634A1 (en) |
-
1935
- 1935-01-28 SU SU161739A patent/SU43634A1/en active
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