SU361687A1 - The method of obtaining dicyclohexylamine - Google Patents
The method of obtaining dicyclohexylamineInfo
- Publication number
- SU361687A1 SU361687A1 SU1492199A SU1492199A SU361687A1 SU 361687 A1 SU361687 A1 SU 361687A1 SU 1492199 A SU1492199 A SU 1492199A SU 1492199 A SU1492199 A SU 1492199A SU 361687 A1 SU361687 A1 SU 361687A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- aniline
- dicyclohexylamine
- catalyst
- obtaining
- hydrogenation
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
1one
Изобретение относитс к усовершенствованному способу получени дицикпогексил , амина.This invention relates to an improved process for the preparation of dicyclopoxyl, amine.
Известен способ получени дициклогексилA known method of producing dicyclohexyl.
амина гидрированием анилина на никелевом катализаторе H.JH 200-2 50°С и давлении 100-ЗОО атм. Выход целевого продукта 70%amine by hydrogenation of aniline on a nickel catalyst H.JH 200-2 50 ° C and a pressure of 100-ZOO atm. The yield of the target product 70%
При этом с дициклогексиламином образу.етс циклогексиламин, что затрудн ет разделение продуктов гидрировани .In this case, dicyclohexylamine forms cyclohexylamine, which makes it difficult to separate the products of hydrogenation.
С целью увеличени выхода целевого продукта по предлагаемому способу анилин или смесь анилина с О, 1% нитробензола гидрируют в присутствии палладиевого катализатора , нанесенного на асбест в количестве не менее 1О% от веса носител .In order to increase the yield of the target product according to the proposed method, aniline or a mixture of aniline with O, 1% nitrobenzene is hydrogenated in the presence of a palladium catalyst supported on asbestos in an amount of at least 1O% by weight of the carrier.
Процесс целесообразно проводить при температуре 12О-180°С и атмосферном давлении .The process should be carried out at a temperature of 12 ° -180 ° C and atmospheric pressure.
Приме р. По методике Зелинсжого получают 35 г катализатора Pd /асбест, содержащего 8,75 г чистого паллади . Гид- риропанче анилина п1)ОВ1Лшт при 12О-18О°С II fiTMrxT.ijvjpHOM давлентпг при соотношении гшиипиа п водо(К)П;1 1:12. 1 аиболы11ин вы- Primer p. According to the method of Zelinszhy, 35 g of Pd / asbestos catalyst containing 8.75 g of pure palladium are obtained. Hydrogenate aniline P1) OB1Lsht at 12O-18O ° C II fiTMrxT.ijvjpHOM davlennpg with the ratio of hydrochipium to water (K) P; 1 1:12. 1 aiboly11in you-
ход дициклогексиламина и процент превра- the course of dicyclohexylamine and the percentage of conversion
щени анилина наблюдаетс в случае про- ianiline puffs are observed in the case of pro i
ведени процесса при 18Ot.conduct process at 18Ot.
Изменение состава продуктов гидрирова. iChanges in the composition of products hydrirova. i
ни анилина на катализаторе Pd /асбест в no aniline on Pd / asbestos catalyst
-зависимости от температуры показано в табл. 1.-dependence on temperature is shown in Table. one.
Как видно из табл. 1, на предлагаемом i катализаторе выход дициклогексиламина дос-Ц тигает 81% при циклогексиламнн | не образуетс . Зго позвол ет легко разде- ; л ть продукты гидрировани анилина вследствие большой разности их температур кипе-iни . Выход дициклогексиламина при гидри- ровании анилина на предлагаемом катализа-; торе со временем падает. Однако актив- ; ность катализатора полностью восстанавливаетс в результате обработки катализатора раствором уксусной кислоты.As can be seen from the table. 1, on the proposed i catalyst, the yield of dicyclohexylamine reaches 81% with cyclohexylamine | not formed. Zgo allows easy separation; Aniline hydrogenation products are due to the large difference in their bale-in-temperature. The yield of dicyclohexylamine in the hydrogenation of aniline on the proposed catalysis is; torus falls over time. However, active-; The catalyst is completely restored by treating the catalyst with acetic acid solution.
Выход дициклогексиламина на ката;п13г1TOpePd /асбест может быть увеличен при ; гидрировании смеси анилина с Ш1тробе1гзолом .The yield of dicyclohexylamine on kata; n13g1TOpePd / asbestos can be increased with; hydrogenation of aniline mixture with S1trobenegzol.
Изменение состава продуктов гидриров,ни смеси .анилина с: различным c(,,The change in the composition of the products of the hydrirs, nor the mixture of .aniline with: various c (,,
ем нитробензола на предлагаемом катализаторе при ISO показано в табл. 2.we eat nitrobenzene on the proposed catalyst at ISO shown in Table. 2
Как видно из табл. 2, наибольший вь ход диш слогексиламина (до 85%) наблюдаетс при гидрировании смеси анилина с О, 1% нитробензола на катализаторе1У/аобест . Кроме того, в этом случае не образуетс циклогексан, что облегчает раздвление гидрогенизата.As can be seen from the table. 2, the greatest progress of dislogloxylamine (up to 85%) is observed in the hydrogenation of an aniline mixture with O, 1% nitrobenzene on a catalyst U / aobest. In addition, in this case cyclohexane is not formed, which facilitates the splitting of the hydrogenate.
.Таблица 1.Table 1
Таблица 2table 2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1492199A SU361687A1 (en) | 1970-11-12 | 1970-11-12 | The method of obtaining dicyclohexylamine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1492199A SU361687A1 (en) | 1970-11-12 | 1970-11-12 | The method of obtaining dicyclohexylamine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU361687A1 true SU361687A1 (en) | 1976-02-25 |
Family
ID=20459879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1492199A SU361687A1 (en) | 1970-11-12 | 1970-11-12 | The method of obtaining dicyclohexylamine |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU361687A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817459A (en) * | 2014-02-05 | 2015-08-05 | 拜耳材料科技股份有限公司 | Process for hydrogenating aromatic di- and polyamines to cycloaliphatic di- and polyamines |
-
1970
- 1970-11-12 SU SU1492199A patent/SU361687A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817459A (en) * | 2014-02-05 | 2015-08-05 | 拜耳材料科技股份有限公司 | Process for hydrogenating aromatic di- and polyamines to cycloaliphatic di- and polyamines |
| CN104817459B (en) * | 2014-02-05 | 2019-03-08 | 科思创德国股份有限公司 | The method for generating cyclic aliphatic two-and polyamines for Hydrogenated aromatic two-and polyamines |
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