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US3862256A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for preparing mono- and di-olefine hydrocarbons

Assignee: Individual
•
Filing: 1972-08-07
•
Granted: 1975-01-21
•
Expires: 1992-08-07
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Abstract

Abstract A method for the production of mono- and diolefinic hydrocarbons by subjecting paraffinic hydrocarbons to catalytic oxidative dehydrogenation at 400* to 700* in the presence of a catalyst comprising oxygen-containing compounds of molybdenum and magnesium taken in a molybdenum/magnesium atomic ratio of 1:0.9 to 1:357, optional components of said catalyst being oxygencontaining compounds of cobalt, iron, chromium, vanadium, nickel, silicon, antimony, boron, gadolinium, dysprosium, gallium, bismuth, titanium, zirconium or niobium.

Inventors

  • 👤 Anatoly Lvovich Isailingold
  • 👤 Veniamin Anatolievich Levin
  • 👤 Fedor Semenovich Pilipenko
  • 👤 Tatyana Pavlovna Vernova
  • 👤 Gennady Arkadievich Stepanov
  • 👤 Alexandr Nikitich Bushin
  • 👤 Boris Vasilievich Sirotkin
  • 👤 Valentin Vasilievich Kozin
  • 👤 Mark Ekhetskelevich Basner
  • 👤 Aida Vladimirovna Erofeeva
  • 👤 Nina Prokopievna Peshkova
  • 👤 Luiza Saidovna Tuktarova
  • 👤 Yakov Yakovlevich Kirnos
  • 👤 Ruslan Konstantinovi Mikhailov
  • 👤 Nikolai Zakharovich Dolinin
  • 👤 Jury Nikolaevich Rastvorov
  • 👤 Valeria Lvovna Eratova

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 03:13
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/16; B01J23/24; B01J23/28; B01J23/31; C; C07; C07C; C07C5/00; C07C5/42; C07C5/48

Claims Analysis

Total Claims: 20
Claim 1
Independent Claim 103 words
A METHOD FOR THE PRODUCTION OF MONO-AND DIOLEFINIC HYDROCARBONS WHICH COMPRISES PASSING A FEED CONSISTING ESSENTIALLY OF A PARAFFIN HYDROCARBON, OXYGEN AND AN INERT DILUENT SELECTED FROM THE GROUP CONSISTING OF STEAM, NITROGEN, ARGON, HELIUM AND MIXTURES THEREOF AT AN OXYGEN TO PARAFFIN HYDROCARBON MOLAR RATIO OF 0.1 TO 390 OVER A CATALYST AT A TEMPERATURE OF FROM 400* TO 700*C., SAID CATALYST CONSISTING ESSENTIALLY OXYGEN-CONTAINING COMPOUNDS OF MOLYBDENUM AND MAGNESIUM TAKEN IN A MOLYBDENUM/MAGNMESIUM ATOMIC RATIO OF FROM 1:0.9 TO 1:357 AND HAVING ABSORPTION BANDS IN THE INFRA-RED SPECTRUM THEREOF AT THE WAVE NUMBERS OF 780 CM-1,830 CM-1,950 CM-1 AND 970 CM-1.
Claim 2
Independent Claim 103 words
A METHOD FOR THE PRODUCTION OF MONO-AND DIOLEFINIC HYDROCARBONS WHICH COMPRISES PASSING A FEED CONSISTING ESSENTIALLY OF A PARAFFIN HYDROCARBON, OXYGEN AND AN INERT DILUENT SELECTED FROM THE GROUP CONSISTING OF STEAM, NITROGEN, ARGON, HELIUM AND MIXTURES THEREOF AT AN OXYGEN TO PARAFFIN HYDROCARBON MOLAR RATIO OF 0.1 TO 390 OVER A CATALYST AT A TEMPERATURE OF FROM 400* TO 700*C., SAID CATALYST CONSISTING ESSENTIALLY OXYGEN-CONTAINING COMPOUNDS OF MOLYBDENUM AND MAGNESIUM TAKEN IN A MOLYBDENUM/MAGNMESIUM ATOMIC RATIO OF FROM 1:0.9 TO 1:357 AND HAVING ABSORPTION BANDS IN THE INFRA-RED SPECTRUM THEREOF AT THE WAVE NUMBERS OF 780 CM-1,830 CM-1,950 CM-1 AND 970 CM-1.
Claim 3
Dependent Claim 25 words
A method according to claim 1, wherein the catalyst contains molybdenum and magnesium atoms in the ratio from 1 : 3.6 to 1 : 68.5.
Claim 4
Dependent Claim 47 words
A method according to claim 1, wherein the catalyst contains oxy compounds of at least one of the elements selected from the group consisting of cobalt, iron, chromium, vanadium, silicon and nickel in an amount of 0.01 to 20 percent by weight calculated as the metal oxide.
Claim 5
Dependent Claim 33 words
A method according to claim 1, wherein the catalyst contains oxy compounds of at least one metal selected from the group consisting of antimony, boron, gadolinium, dysprosium, gallium, bismuth, titanium, zirconium and niobium.
Claim 6
Dependent Claim 34 words
A method according to claim 4, wherein the catalyst contains oxy compounds of at least one said metal in an amount of from 0.01 to 5 percent by weight calculated as the metal oxide.
Claim 7
Dependent Claim 32 words
A method according to claim 3, wherein the catalyst contains oxy compounds of at least one metal selected from the group consisting of antimony, boron, gadolinium, gallium, bismuth, titanium, zirconium and niobium.
Claim 8
Dependent Claim 32 words
A method according to claim 6, wherein catalyst contains oxy compounds of at least one said metal in an amount from 0.01 to 5 percent by weight calculated as the metal oxide.
Claim 9
Dependent Claim 26 words
A method according to claim 1, wherein the catalyst is supported on a carrier selected from the group consisting of aluminosilicates, silica gel and aluminum oxide.
Claim 10
Dependent Claim 26 words
A method according to claim 3, wherein the catalyst is supported on a carrier selected from the group consisting of aluminosilicates, silica gel and aluminum oxide.
Claim 11
Dependent Claim 26 words
A method according to claim 4 wherein the catalyst is supported on a carrier selected from the group consisting of aluminosilicates, silica gel and aluminum oxide.
Claim 12
Dependent Claim 26 words
A method according to claim 6, wherein the catalyst is supported on a carrier selected from the group consisting of aluminosilicates, silica gel, and aluminum oxide.
Claim 13
Dependent Claim 25 words
A method according to claim 1, wherein inert diluent is used in an amount from 1 to 40 mols per mol of the paraffin hydrocarbon.
Claim 14
Dependent Claim 24 words
A method according to claim 1, wherein the oxidative dehydrogenation of the paraffin hydrocarbon is carried out at a temperature from 500* to 650*C.
Claim 15
Dependent Claim 20 words
A method according to claim 1, wherein the molar ratio of oxygen to the paraffin hydrocarbon is 0.5 to 2.
Claim 16
Dependent Claim 21 words
A method according to claim 1, wherein the paraffin hydrocarbon is charged at a rate of 20 to 1000 hour 1.
Claim 17
Dependent Claim 12 words
A method according to claim 1, wherein the paraffin hydrocarbon is n-butane.
Claim 18
Dependent Claim 16 words
A method according to claim 16, wherein the n-butane is used in a mixture with n-butenes.
Claim 19
Dependent Claim 12 words
A method according to claim 1, wherein the paraffin hydrocarbon is isopentane.
Claim 20
Dependent Claim 16 words
A method according to claim 18, wherein the isopentane is used in a mixture with isoamylenes.

References Cited (Backward Citations)

US3119111A Cited
US3356757A Cited
US3308196A Cited
US3308191A Cited
US3308200A Cited
US3678124A Cited
US3718707A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-20 1978-07-22 1979-01-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-20 1982-07-22 1983-01-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-20 1986-07-22 1987-01-21 $7700.00 Window Closed / Lapsed

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