GB976739A - Purification of nitrocyclohexane - Google Patents
Purification of nitrocyclohexaneInfo
- Publication number
- GB976739A GB976739A GB31979/63A GB3197963A GB976739A GB 976739 A GB976739 A GB 976739A GB 31979/63 A GB31979/63 A GB 31979/63A GB 3197963 A GB3197963 A GB 3197963A GB 976739 A GB976739 A GB 976739A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitrocyclohexane
- precipitate
- separating
- impure
- ammonium salt
- 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
- NJNQUTDUIPVROZ-UHFFFAOYSA-N nitrocyclohexane Chemical compound [O-][N+](=O)C1CCCCC1 NJNQUTDUIPVROZ-UHFFFAOYSA-N 0.000 title abstract 6
- 238000000746 purification Methods 0.000 title 1
- 150000003863 ammonium salts Chemical class 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 1
- PYGKZRNQXTUONI-UHFFFAOYSA-N N-hydroxycyclohexanimine oxide Chemical compound [N+]([O-])(O)=C1CCCCC1 PYGKZRNQXTUONI-UHFFFAOYSA-N 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/16—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/05—Compounds containing nitro groups bound to a carbon skeleton having nitro groups bound to carbon atoms of rings other than six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A process for the production of purified nitrocyclohexane comprises dissolving impure nitrocyclohexane in a liquid medium comprising liquid ammonia, allowing a substantial portion of the nitrocyclohexane to precipitate as the ammonium salt of aci-nitrocyclohexane, separating the precipitate and decomposing it to yield purified nitrocyclohexane. The liquid medium is preferably at a temperature of -30 to -40 DEG C. and 1/4 to 1 hour is allowed to elapse between dissolving the impure nitrocyclohexane and separating the ammonium salt.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US21631362A | 1962-08-13 | 1962-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB976739A true GB976739A (en) | 1964-12-02 |
Family
ID=22806572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31979/63A Expired GB976739A (en) | 1962-08-13 | 1963-08-13 | Purification of nitrocyclohexane |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH426782A (en) |
DE (1) | DE1218438B (en) |
GB (1) | GB976739A (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE947162C (en) * | 1952-04-24 | 1956-09-06 | Bayer Ag | Process for working up the reaction mixture obtained in the nitration of cyclohexane |
FR1137467A (en) * | 1954-08-05 | 1957-05-29 | Olin Mathieson | Improvements relating to the manufacture of nitrocyclohexane |
-
1963
- 1963-07-31 DE DEA43727A patent/DE1218438B/en active Pending
- 1963-08-06 CH CH971163A patent/CH426782A/en unknown
- 1963-08-13 GB GB31979/63A patent/GB976739A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1218438B (en) | 1966-06-08 |
CH426782A (en) | 1966-12-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1104497A (en) | Recovery of spent etchants | |
ES491280A0 (en) | PROCEDURE TO PURIFY WASTE WATER CONTAINING UREA | |
GB1484860A (en) | Manufacture of boric acid | |
GB1416365A (en) | Process for the manufacture of drystalline ammonium phosphates | |
GB976739A (en) | Purification of nitrocyclohexane | |
CH383676A (en) | Process for promoting the growth and yield of plants | |
GB1024863A (en) | Purification of crude aqueous glyoxal solutions | |
FR1290212A (en) | Process for the decoloration and purification of impure solutions of organic acids | |
GB1122761A (en) | Process for the purification of amino acids | |
GB1096707A (en) | Process for the purification of tertiary amines | |
GB1103709A (en) | Purification of nicotinamide-adenine-dinucleotide | |
SU389027A1 (en) | ALL-UNION | |
CH430686A (en) | Process for the production of urea by synthesis from carbon dioxide and ammonia | |
SU112189A1 (en) | The method of obtaining tungsten anhydride and tungsten acid from scheelite concentrates | |
GB1222678A (en) | Process for purifying melamine | |
GB947842A (en) | Improved process for the preparation of nitrocyclohexane | |
CH431476A (en) | Process and device for the production of pure, concentrated sulfuric acid | |
GB1015059A (en) | Process for purifying ª-methyl-ª-(3,4-dihydroxyphenyl)-alanine | |
GB984332A (en) | Process for purifying ª†-methyl glutamate n-carboxy anhydride | |
GB699384A (en) | Improvements in or relating to purification of vitamin preparations | |
GB1046047A (en) | Process for the manufacture of trans-2-chlorobutene-(2) | |
GB1440624A (en) | Production of urea | |
GB972974A (en) | A method for purifying 7-chloro-1-methyl-5-phenyl-2,3-dihydro-1h-1,4-benzodiazepinone-(2) | |
ES287139A1 (en) | A urea purification procedure with recovery of ammonia and carbon dioxide (Machine-translation by Google Translate, not legally binding) | |
AU267008B2 (en) | Process for the production of urea from ammoniacal capours containing carbon dioxide |