SU245057A1 - The method of producing cyclohexane - Google Patents

The method of producing cyclohexane

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Publication number
SU245057A1
SU245057A1 SU1197934A SU1197934A SU245057A1 SU 245057 A1 SU245057 A1 SU 245057A1 SU 1197934 A SU1197934 A SU 1197934A SU 1197934 A SU1197934 A SU 1197934A SU 245057 A1 SU245057 A1 SU 245057A1
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SU
USSR - Soviet Union
Prior art keywords
chromium
cyclohexane
nickel
atm
yield
Prior art date
Application number
SU1197934A
Other languages
Russian (ru)
Inventor
Н.И. Попов
Ф.Б. Бижанов
Д.В. Сокольский
Е. Баханов
А.М. Хисаметдинов
Original Assignee
Казахский Химико-Технологический Институт
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Priority to SU1197934A priority Critical patent/SU245057A1/en
Application granted granted Critical
Publication of SU245057A1 publication Critical patent/SU245057A1/en

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  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

(54) СПОСОБ ПОЛУЧЕНИЯ ЦИКЛОГЕКСАНА(54) METHOD OF OBTAINING CYCLOHEXANE

I Известен способ получени  циклогекса : на гвдрированием бензола в паровой фазе в проточно-циркул ционной установке в при- ; сутствии скелетного никельхромового ка- ;тализатора, содержащего ат % хрома, . С целью повышени  скорости процесса и получени  аелевого продукта высокой сте1 пени чистоты предложенный способ преду- i сматривает проведение процесса в жидкой |фазе при давлении водорода около 110 атм и температуре около 170°С в- присутствии скелетного ннкельхроЛЮВого катализатора, I содержащего не более 1 ат. % хрома.I There is a known method for the preparation of cyclohexane: by hydrogenation of benzene in the vapor phase in a flow-circulation plant in the case of; the presence of skeletal nickel-chromium catalyst; an atomizer containing at% chromium,. In order to increase the speed of the process and obtain a high grade purity product, the proposed method involves carrying out the process in the liquid phase at a hydrogen pressure of about 110 atm and a temperature of about 170 ° C in the presence of a skeletal non-chromatic catalyst, I containing not more than 1 atom. . % chromium.

Сплавы закэльхромовых катализаторов и скелетного никел  без добавки хрома гоfTOBHT в высокочастотной печи. Предвари- тельно измельченный металлический алю: миний (2ОО г)расш1авл ют в кварцевом или корундизированном тигле до 1ООО-. затем к нему добавл ют тщательно перем©шанн то механически однородную смесь мв таллического никел  и хрома (199 г никел  + 1 г хрома). При этом температу; ру быстро повьгшают до 17ОО°С, эту тем дтературу поддерживают в течение 5 мин. Alloys of back-off chromium catalysts and skeletal nickel without the addition of chromium fTOBHT in a high-frequency furnace. The preliminarily crushed metal alu minium (2OO g) is expanded in a quartz or corundum crucible to 1OOO-. then a mechanically homogeneous mixture of tall nickel and chromium (199 g of nickel + 1 g of chromium) is carefully added to it. At the same temperature; The device quickly supports up to 17OO ° C, this order is maintained for 5 minutes.

Расплав все врем  перемешивают высокочастотным полем, в атмосфере воздуха. Далее расплав быстро выливают в графитовые изложниды и постепенно охлаждают. ; Затем его дроб т, фракцию, проход щую через сито № 60 (0,25 мм), вышелачива; ют 20%-ным водным раствором едкого натра в течение 1 час при 1ОО°С. Далее катализатор отмывают до нейтральной р© акдии и используют в пропессе (необходима тщательна  отмывка от следЛз влаги). Пример 1. 1,О г сплава Ni -С I (0,2% Cf ) выщелачивают при 10О°С ;1 час. Бензол в количестве 28О мл гид:рируют при температуре14О С,. давла НИИ водорода 50 атм; 100%-ный выход диклогексана достигаетс  за 1QO мн , на ;скелетном никеле без хрома в этих же услови х - за 220 мин. При повышений температуры опьЛ-а до 16О°С 1оО%-ный выход ДйКлогексана Получают на ниКельхро мовоы катализаторе за 7О мин.The melt is stirred all the time by a high-frequency field in an atmosphere of air. Next, the melt is quickly poured into graphite outlines and gradually cooled. ; Then it was crushed, the fraction passing through No. 60 sieve (0.25 mm) was leached; 20% aqueous solution of caustic soda for 1 hour at 1OO ° C. Next, the catalyst is washed to neutral neutrality and used in the process (careful washing of moisture should be done). Example 1. 1, O g of the alloy Ni-C I (0.2% Cf) is leached at 10 ° C; 1 hour. Benzene in the amount of 28 O ml guide: interviewed at a temperature of 14 ° C ,. pressured hydrogen research institute 50 atm; A 100% yield of diclohexane is achieved in 1QO mn, on; skeletal nickel without chromium under the same conditions in 220 minutes. With increasing temperature of the polymer up to 16 ° C 1 ° C, the% yield of Diclohexane is obtained on a nickel chromium catalyst over 7O min.

бе эола, температура 160 С, давление мл бензола, 1,О г сплава, темпера ; рода 30 йт. 100%-ный выход циклогексана |тура 140 С, давление водорода 50 атм. /достигаетс  за 60 час, при давлении водо , атм за 45 мин при давлени  водо«° I;Be ela, temperature 160 С, pressure ml of benzene, 1, О g alloy, tempera; kind 30 yt. 100% yield of cyclohexane | tour 140 C, hydrogen pressure 50 atm. / is reached in 60 hours, at a pressure of water, atm in 45 minutes at a pressure of water "° I;

рода 110 атм за 30 мин.kind of 110 atm for 30 minutes

Пример 3. Услови  опыта: Выход циклогексана Катализатор врем , мин-,. Example 3. Experimental conditions: Cyclohexane yield Catalyst time, min- ,.

Ni-Al , содержащий Nt Ni-Al containing Nt

Некоторые сравнительные данные актив ности промотированньтх скелетных каталиI заторов приведены в табйиде. (в %)за Врем  дости . жени  1ОО%-ного выхода, минSome comparative data on the activity of promoted skeletal catalysts are given in the tabide. (%) for Time Reached. married 1oo% yield, min

Hi -Сг , содержащий С г , %:Hi-Cg containing C g,%:

SU1197934A 1967-11-15 1967-11-15 The method of producing cyclohexane SU245057A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1197934A SU245057A1 (en) 1967-11-15 1967-11-15 The method of producing cyclohexane

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Application Number Priority Date Filing Date Title
SU1197934A SU245057A1 (en) 1967-11-15 1967-11-15 The method of producing cyclohexane

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SU245057A1 true SU245057A1 (en) 1975-12-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281425A2 (en) * 1987-03-06 1988-09-07 ISTITUTO GUIDO DONEGANI S.p.A. A process for producing a silanic or siloxanic compound containing at least one cycloalkylic ring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281425A2 (en) * 1987-03-06 1988-09-07 ISTITUTO GUIDO DONEGANI S.p.A. A process for producing a silanic or siloxanic compound containing at least one cycloalkylic ring
EP0281425A3 (en) * 1987-03-06 1990-01-10 ISTITUTO GUIDO DONEGANI S.p.A. A process for producing a silanic or siloxanic compound containing at least one cycloalkylic ring

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