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Synthesis process

Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1963-03-12
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Granted: 1967-02-21
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Expires: 1983-03-12
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Abstract

No abstract record available.

Inventors

  • 👤 Weinstein Norman Jacob
  • 👤 Richard R King

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 15:28
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/02; C01C1/04; C01C1/0405; C01C1/0411; C01B; C01B3/00; C01B3/02; C01B3/025; C21; C21B; C21B13/00; C21B13/0033; C21B13/0073; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/122; Y02P10/134; Y02P10/143; Y02P10/20; Y02P20/00; Y02P20/50; Y02P20/52; Y02P20/582

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 143 words
A COMBINED PROCESS FOR DIRECT IRON ORE REDUCTION AND AMMONIA SYNTHESIS WHICH COMPRISES THE STEPS OF (A) PARTIALLY OXIDIZING A HYDROCARBON FUEL WITH OXYGEN-ENRICHED AIR TO FORM A REDUCING GAS MIXTURE INCLUDING CO, H2 AND N2 IN PROPORTIONBS PROVIDING A CO PLUS H2 TO N2 RATIO RANGING FROM ABOUT 3.1 TO ABOUT 4.5; (B) CONTACTING THE REDUCING GAS MIXTURE WITH IRON OXIDES TO REDUCE SAID OXIDES; (C) SEPARATING FROM SAID IRON OXIDES REDUCTION STEP AN EFFLUENT WHICH INCLUDES CO, H2 AND N2 IN RATIO OF CO PLUS H2 TO N2 OF FROM ABOUT 2.8 TO ABOUT 3.5, TREATING THE EFFLUENT TO REMOVE CO2 AND H2O THEREFROM; (D) AND THEN SUBJECTING THE GASES TO TEMPERATURES RANGING FROM ABOUT 750*F. TO ABOUT 1200*F., AND TO PRESSURES RANGING FROM ABOUT 100 TO ABOUT 1000 ATMOSPHERES, TO PRODUCE SYNTHESIS OF THE HYDROGEN AND NITROGEN TO FORM AMMONIA.

References Cited (Backward Citations)

US2166611A Cited
US2610106A Cited
US3148050A Cited
US3168386A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-02-20 1970-08-22 1971-02-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-02-20 1974-08-22 1975-02-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-02-20 1978-08-22 1979-02-21 $7700.00 Window Closed / Lapsed

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