GB932712A - Improvements in the preparation and in the preservation of anhydrous hydrazine - Google Patents
Improvements in the preparation and in the preservation of anhydrous hydrazineInfo
- Publication number
- GB932712A GB932712A GB2769059A GB2769059A GB932712A GB 932712 A GB932712 A GB 932712A GB 2769059 A GB2769059 A GB 2769059A GB 2769059 A GB2769059 A GB 2769059A GB 932712 A GB932712 A GB 932712A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrazine
- benzene
- anhydrous hydrazine
- distillation
- anhydrous
- 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
Links
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 title abstract 16
- 238000002360 preparation method Methods 0.000 title 1
- 238000004321 preservation Methods 0.000 title 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 12
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- 238000004821 distillation Methods 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 239000004215 Carbon black (E152) Substances 0.000 abstract 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 abstract 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 abstract 2
- 239000000292 calcium oxide Substances 0.000 abstract 2
- 235000012255 calcium oxide Nutrition 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 abstract 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 1
- 238000013019 agitation Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000012024 dehydrating agents Substances 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229940072033 potash Drugs 0.000 abstract 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 1
- 235000015320 potassium carbonate Nutrition 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
- 239000008096 xylene Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/16—Hydrazine; Salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Anhydrous hydrazine is prepared and preserved by contacting hydrazine with a dehydrating agent, followed by distillation of the resulting mixture to isolate the anhydrous hydrazine, both operations being effected in the presence solely of a liquid unsaturated aromatic hydrocarbon. Aromatic hydrocarbons referred to are benzene, toluene and xylene and mixtures thereof. Dehydrating agents may be caustic soda, potash, quick lime or barium oxide. The minimum amount of hydrocarbon employed may be calculated from a consideration of the vapour pressure curves of the respective hydrocarbon and hydrazine. An example refers to the production of anhydrous hydrazine by dehydration of hydrazine hydrate containing 63% hydrazine with quick lime in the presence of benzene and, after agitation of the mixture for one hour, distillation of the benzene and anhydrous hydrazine at 78 DEG -79 DEG C. for the major part of the distillation and finally at 92 DEG -96 DEG C. to effect maximum recovery of benzene. Specification 756,545 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR772569A FR1434101A (en) | 1958-08-14 | 1958-08-14 | Improvements in the preparation and storage of anhydrous hydrazine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB932712A true GB932712A (en) | 1963-07-31 |
Family
ID=8707264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2769059A Expired GB932712A (en) | 1958-08-14 | 1959-08-13 | Improvements in the preparation and in the preservation of anhydrous hydrazine |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1434101A (en) |
| GB (1) | GB932712A (en) |
-
1958
- 1958-08-14 FR FR772569A patent/FR1434101A/en not_active Expired
-
1959
- 1959-08-13 GB GB2769059A patent/GB932712A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1434101A (en) | 1966-04-08 |
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