SU199838A1 - METHOD FOR RECOVERY OF A NECK CHEMICAL CATALYST PROCESSED - Google Patents
METHOD FOR RECOVERY OF A NECK CHEMICAL CATALYST PROCESSEDInfo
- Publication number
- SU199838A1 SU199838A1 SU1033622A SU1033622A SU199838A1 SU 199838 A1 SU199838 A1 SU 199838A1 SU 1033622 A SU1033622 A SU 1033622A SU 1033622 A SU1033622 A SU 1033622A SU 199838 A1 SU199838 A1 SU 199838A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- catalyst
- neck
- recovery
- chemical catalyst
- catalyst processed
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title description 15
- 238000011084 recovery Methods 0.000 title 1
- 239000000126 substance Substances 0.000 title 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N Cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 6
- 238000005984 hydrogenation reaction Methods 0.000 description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N Caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- -1 nickel-chromium Chemical compound 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N Cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000001172 regenerating Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000012261 resinous substance Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Description
Общеизвестен способ регенерации катализаторов гидрировани , состо щий в том, что отработанные катализаторы, загр зненные смолами, образовавшимис в процессе гидрировани органических соединений, промывают растворител ми - метилэтилкетоном, этанолом до растворени смолистых загр знений. В частности, таким образом очищают никелевый катализатор, примен емый дл парофазного гидрировани фенола. Срок службы катализатора один год.The method of regeneration of hydrogenation catalysts is well known, which consists in that spent catalysts contaminated with resins formed during the hydrogenation of organic compounds are washed with methyl ethyl ketone solvents and ethanol until the resinous substances dissolve. In particular, the nickel catalyst used for vapor phase phenol hydrogenation is thus purified. The service life of the catalyst is one year.
С целью увеличени срока службы катализатора до трех лет и улучшени качества целевого продукта, предложено регенерировать отработанный никельхромовый катализатор в производстве гидрировани фенола до циклогексанола с применением в качестве органического растворител циклогексанона-ректификата , который в виде паров пропускают через отработанный катализатор.In order to increase the service life of the catalyst to three years and improve the quality of the target product, it has been proposed to regenerate spent nickel-chromium catalyst in the production of phenol to hydrogenate cyclohexanol using cyclohexanone-rectified as an organic solvent, which is passed through the spent catalyst as vapor.
Целесообразность применени циклогексанон-ректификата дл регенерации отработанного никельхромового катализатора состоит в том, что циклогексанон-ректификат вл етс продуктом дегидрогенезации циклогексанола и входит в одну из стадий получени капролактама . Поэтому он доступен дл производства капролактама, удобен дл транспортировки.The expediency of using cyclohexanone-rectified for the regeneration of spent nickel-chromium catalyst is that cyclohexanone-rectified is a product of cyclohexanol dehydrogenation and is included in one of the stages of caprolactam production. Therefore, it is available for the production of caprolactam, convenient for transportation.
ректификат подают по существующей схеме, не мен режима работы цеха; после регенерации катализатора дл перехода на гидрирование нет необходимости налаживани режима - все это увеличивает коэффициент полезного действи аппаратов.rectificate is served according to the existing scheme, not the operating mode of the workshop; After regeneration of the catalyst, there is no need to establish a regime for the transition to hydrogenation - all this increases the efficiency of the apparatus.
Пример. Через 2 кг отработанного катализатора пропускают 1,5 кг паров циклогексанон-ректификата с температурой 150°С.Example. After 2 kg of spent catalyst miss 1.5 kg of cyclohexanone-rectified vapor with a temperature of 150 ° C.
Дл увеличени шероховатости катализатора последний подвергают осущке при температуре 150°С, пропуска азот в течение 2 час. После осушки катализатор восстанавливают в течение 1 час при температуре 160°С. ПриIn order to increase the catalyst roughness, the latter is subjected to drying at a temperature of 150 ° C, passing nitrogen for 2 hours. After drying, the catalyst is reduced for 1 hour at a temperature of 160 ° C. With
гидрировании фенола с использованием регенерированного никельхромового катализатора степень превращени фенола в циклогексанол высока , содержание фенола в циклогексаноле доходит до 0,1 о/о (результаты анализа приведены в таблице). 3 Срок службы катализатора при вышеописанной регенерации можно увеличить до 3 лет. гт „ .. Предмет изобретени Способ регенерации отработанного никель-5 хромового катализатора гидрировани фено4 ла до циклогексанола путем промывки его органическим растворителем, отличающийс тем, что, с целью улучшени качества циклогексанола и увеличени срока службы катализатора , в качестве органического растворител примен ют циклогексанон-ректификат.hydrogenation of phenol using a regenerated nickel-chromium catalyst, the degree of conversion of phenol to cyclohexanol is high, the content of phenol in cyclohexanol reaches 0.1 o / o (the results of the analysis are shown in the table). 3 The service life of the catalyst with the above described regeneration can be extended to 3 years. gt „. Subject of the invention. Method for regenerating spent nickel-5 chromium catalyst for the hydrogenation of phenolic to cyclohexanol by washing it with an organic solvent, characterized in that cyclohexanone rectified is used as an organic solvent to improve the quality of cyclohexanol. .
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU199838A1 true SU199838A1 (en) |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5068477A (en) * | 1987-08-14 | 1991-11-26 | Europeenne De Retraitement De Catalyseurs Eurecat | Process for reducing a refining catalyst and use of the catalyst in hydrogenation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5068477A (en) * | 1987-08-14 | 1991-11-26 | Europeenne De Retraitement De Catalyseurs Eurecat | Process for reducing a refining catalyst and use of the catalyst in hydrogenation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lima et al. | Towards sustainable hydrogenation of 5-(hydroxymethyl) furfural: a two-stage continuous process in aqueous media over RANEY® catalysts | |
| CN114845988B (en) | Method for producing bis (aminomethyl) cyclohexane | |
| SU199838A1 (en) | METHOD FOR RECOVERY OF A NECK CHEMICAL CATALYST PROCESSED | |
| JP6414366B2 (en) | Process for producing 1,4-dicyanocyclohexane, 1,4-bis (aminomethyl) cyclohexane, and 1,4-cyclohexanedicarboxylic acid | |
| CN108927203B (en) | Regeneration method of phenol hydrogenation Pd @ CN catalyst | |
| RU2764524C2 (en) | Method for obtaining indancarbaldehyde | |
| US8759588B2 (en) | Process for producing xylylenediamine | |
| Izumi | Studies on the silk-palladium catalyst. II. General properties | |
| US10150102B2 (en) | Catalyst regeneration process | |
| US5030737A (en) | Use of a solvent for hydrogenation of sulfolene to sulfolane | |
| US10035783B2 (en) | Process for the production of 1,4-butanediol and tetrahydrofuran from furan | |
| GB860333A (en) | Process for the manufacture of lubricating oil | |
| US1980829A (en) | Purification and regeneration of platinum catalysts | |
| JP5054684B2 (en) | Method for hydrogenating aldehyde-containing material streams | |
| US3911040A (en) | Separation process | |
| JP7335555B2 (en) | Method for producing cyclohexanedicarboxylic acids, dicyanocyclohexanes, and bis(aminomethyl)cyclohexanes | |
| US4375560A (en) | Process for the preparation of 3,5-dimethylaniline (sym. m-xylidine) | |
| US20230048953A1 (en) | Naphtha catalytic cracking process | |
| US20040077885A1 (en) | Catalyst regeneration by solvent extraction | |
| US1733909A (en) | Hydrogenation of naphthalene | |
| Wen | Polymeric sulfonate of piperazine as an inexpensive and recyclable catalyst for Knoevenagel condensation | |
| SU53092A1 (en) | The method of regeneration of molybdenum catalyst | |
| JP2003137821A (en) | Method for producing monoolefin by partial hydrogenation of diolefin | |
| Ballerini et al. | 8 Waste-Minimized | |
| JPH07278136A (en) | Method for regenerating recovered sulfolane |