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US3322686A Expired / Lapsed US ⏱️ 0.0 years remaining

Hydrogenation of chemical compounds and catalysts therefor

Assignee: Individual
•
Filing: 1963-02-05
•
Granted: 1967-05-30
•
Expires: 1983-02-05
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Abstract

No abstract record available.

Inventors

  • 👤 Herbert C Brown
  • 👤 Charles A Brown

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 03:10
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/755

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 134 words
THE METHOD FOR PREPARING A HYDROGENATION CATALYST WHICH COMPRISES REACTING A WATER-SOLUBLE BOROHYDRIDE WITH A WATER-SOLUBLE NICKEL SALT IN THE JPROPORTION OF ABOUT 0.25 MOLE TO ABOUT 1 MOLE OF BOROHYDRIDE FOR EACH MOLE OF NICKEL SALT IN A LIQUID MEDIUM CONSISTING ESSENTIALLLY OF WATER CONTAINING A COMPLEXING AGENT FOR THE NICKEL SALT IN AN AMOUNT NOT SUBSTANTIALLY MORE THAN THAT REQUIRED TO COMPLEX THE NICKEL SALT TO CAUSE PRECIPITATION OF A NICKEL CATALYST, AND SEPARATING THE PRECIPITATED CATALYST, SAID BOROHYDRIDE BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM BOROHYDRIDE, LITHIUM BOROHYDRIDE, POTASSIUM BOROHYDRIDE, MAGNESIUM BOROHYDRIDE, CALCIUM BOROHYDRIDE, AND A QUATERNARY AMMONIUM BOROHYDRIDE, SAID COMPLEXING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF AMMONIA, METHYLAMINE, ETHYLAMINE, ISOPROPYLAMINE, DIMETHYLAMINE, DIETHYLAMINE, TRIETHYLAMINE, MORPHOLINE, N-METHYLMORPHOLINE, ETHANOLAMINE, DIETHANOLAMINE, TRIETHANOLAMINE, ANILINE, PYRIDINE, PIPERIDINE, TARTARIC ACID, CITRIC ACID, AND CATECHOL.
Claim 2
Independent Claim 134 words
THE METHOD FOR PREPARING A HYDROGENATION CATALYST WHICH COMPRISES REACTING A WATER-SOLUBLE BOROHYDRIDE WITH A WATER-SOLUBLE NICKEL SALT IN THE JPROPORTION OF ABOUT 0.25 MOLE TO ABOUT 1 MOLE OF BOROHYDRIDE FOR EACH MOLE OF NICKEL SALT IN A LIQUID MEDIUM CONSISTING ESSENTIALLLY OF WATER CONTAINING A COMPLEXING AGENT FOR THE NICKEL SALT IN AN AMOUNT NOT SUBSTANTIALLY MORE THAN THAT REQUIRED TO COMPLEX THE NICKEL SALT TO CAUSE PRECIPITATION OF A NICKEL CATALYST, AND SEPARATING THE PRECIPITATED CATALYST, SAID BOROHYDRIDE BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM BOROHYDRIDE, LITHIUM BOROHYDRIDE, POTASSIUM BOROHYDRIDE, MAGNESIUM BOROHYDRIDE, CALCIUM BOROHYDRIDE, AND A QUATERNARY AMMONIUM BOROHYDRIDE, SAID COMPLEXING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF AMMONIA, METHYLAMINE, ETHYLAMINE, ISOPROPYLAMINE, DIMETHYLAMINE, DIETHYLAMINE, TRIETHYLAMINE, MORPHOLINE, N-METHYLMORPHOLINE, ETHANOLAMINE, DIETHANOLAMINE, TRIETHANOLAMINE, ANILINE, PYRIDINE, PIPERIDINE, TARTARIC ACID, CITRIC ACID, AND CATECHOL.

References Cited (Backward Citations)

US2461661A Cited
US2534533A Cited
US2525145A Cited
US2708210A Cited
US2820007A Cited
US2892826A Cited
US2993010A Cited
US3092613A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-05-29 1970-11-28 1971-05-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-05-29 1974-11-28 1975-05-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-05-29 1978-11-28 1979-05-30 $7700.00 Window Closed / Lapsed

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