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US2847710A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of improving fluid properties of finely divided materials

Assignee: Phillips Petroleum Co
•
Filing: 1954-06-07
•
Granted: 1958-08-19
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Expires: 1974-06-07
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Abstract

No abstract record available.

Inventors

  • 👤 Emory W Pitzer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 15:04
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; B01J37/0018; Y; Y10; Y10T; Y10T428/00; Y10T428/29

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 152 words
AN IMPROVED PROCESS FOR IMPROVING THE FLUID PROPERTIES OF A POWDERED SOLID CATALYTIC MATERIAL COMPRISING A METAL COMPOUND OF AN AVERAGE PARTICLE SIZE OF LESS THAN 25 MICRONS FOR FLOWING SAME INTO PELLETING MOLDS AND FOR PELLETING SAME, WHICH COMPRISES FORMING AN INTIMATE DRY MIXTURE OF SAID CATALYTIC MATERIAL WITH A NORMALLY SOLID COMBUSTIBLE MATERIAL WHICH MELTS AT AN ELEVATED TEMPERATURE CONDISERABLY LOWER THAN THE MELTING POINT OF SAID CATALYTIC MATERIAL IN AN AMOUNT IN THE RANGE OF 5 TO 25 WEIGHT PERCENT OF SAID CATALYTIC MATERIAL; HEATING SAID DRY MIXTURE SO AS TO MELT SAID SOLID COMBUSTIBLE MATERIAL AND FORM A LIQUID COATING ON SAID CATALYTIC MATERIAL; COOLING SAID MIXTURE TO A TEMPERATURE BELOW THE MELTING POINT OF SAID COMBUSTIBLE MATERIAL, THEREBY RENDERING THE RESULTING MIXTURE MORE FLUID AND BETTER ADAPTED TO FLOW INTO SMALL PELLETING DIES; AND PELLETING SAID MIXTURE BY FLOWING SAME INTO SMALL DIES AND COMPRESSING SAME THEREIN.
Claim 2
Dependent Claim 152 words
AN IMPROVED PROCESS FOR IMPROVING THE FLUID PROPERTIES OF A POWDERED SOLID CATALYTIC MATERIAL COMPRISING A METAL COMPOUND OF AN AVERAGE PARTICLE SIZE OF LESS THAN 25 MICRONS FOR FLOWING SAME INTO PELLETING MOLDS AND FOR PELLETING SAME, WHICH COMPRISES FORMING AN INTIMATE DRY MIXTURE OF SAID CATALYTIC MATERIAL WITH A NORMALLY SOLID COMBUSTIBLE MATERIAL WHICH MELTS AT AN ELEVATED TEMPERATURE CONDISERABLY LOWER THAN THE MELTING POINT OF SAID CATALYTIC MATERIAL IN AN AMOUNT IN THE RANGE OF 5 TO 25 WEIGHT PERCENT OF SAID CATALYTIC MATERIAL; HEATING SAID DRY MIXTURE SO AS TO MELT SAID SOLID COMBUSTIBLE MATERIAL AND FORM A LIQUID COATING ON SAID CATALYTIC MATERIAL; COOLING SAID MIXTURE TO A TEMPERATURE BELOW THE MELTING POINT OF SAID COMBUSTIBLE MATERIAL, THEREBY RENDERING THE RESULTING MIXTURE MORE FLUID AND BETTER ADAPTED TO FLOW INTO SMALL PELLETING DIES; AND PELLETING SAID MIXTURE BY FLOWING SAME INTO SMALL DIES AND COMPRESSING SAME THEREIN.

References Cited (Backward Citations)

US1924401A Cited
US2109592A Cited
US2211738A Cited
US2355269A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-08-18 1962-02-17 1962-08-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-08-18 1966-02-17 1966-08-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-08-18 1970-02-17 1970-08-19 $7700.00 Window Closed / Lapsed

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