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US3287085A Expired / Lapsed US ⏱️ 0.0 years remaining

Conversion of sodium or potassium to its hydroxide of cyanide

Assignee: EIDP Inc
•
Filing: 1963-10-15
•
Granted: 1966-11-22
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Expires: 1983-10-15
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Abstract

No abstract record available.

Inventors

  • 👤 William R Jenks
  • 👤 Norman R Levins

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 16:22
CPC Classifications
C; C01; C01D; C01D1/00; C01D1/04; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/061; C01B3/063; C01B3/08; C01B3/10; C01C; C01C3/00; C01C3/08; C01C3/10; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 289 words
THE METHOD OF PRODUCING HYDROGEN AND A HYDROXIDE OF A METAL OF THE GROUP CONSISTING OF SODIUM AND POTASSIUM, SAID METHOD COMPRISING: (A) CONTINUOUSLY CYCLING A STREAM OF AN AQUEOUS SOLUTION OF SAID HYROXIDE AT A TEMPERATURE FROM ABOUT 50*C. TO JUST BELOW THE BOILING POINT OF SAID SOLUTION IN A CONFINED CYCLIC FLOW PATH WHICH INCLUDES AS A PART THEREOF A PIPELINE REACTOR THROUGH WHICH SAID SOLUTION IS FORCED, UNDER TURBULENT FLOW AT A VELOCITY OF AT LEAST 1.3FT./SEC.; (B) CONTINUOUSLY INJECTING INTO SAID STREAM IN SAID REACTOR IN A DIRECTION OF FLOW OF SAID STREAM THEREIN A MOLTEN STREAM OF SAID METAL HAVING INITIALLY A DIAMETER NOT EXCEEDING 1 16 IN. AT A FLOW RATE SUCH THAT THE RELATIVE RATES OF FLOW TO SAID REACTOR OF SAID AQUEOUS SOLUTION AND SAID METAL WILL PROVIDE A WEIGHT RATIO OF WATER TO METAL OF AT LEAST 35/1, THEREBY REACTING IN SAID REACTOR SAID METAL AND SAID SOLUTION TO PRODUCE A TWO-PHASE STREAM OF HYDROGEN AND A SOLUTION OF THE HYDROXIDE OF SAID METAL; (C) CONTINUOUSLY PASSING SAID TWO-PHASE STREAM INTO A DISENGAGER WHEREBY SAID HYDROGEN IS SEPARATED FROM SAID SOLUTION STREAM, AND CONTINUOUSLY REMOVING THE SEPARATED HYDROGEN FROM SAID CYCLIC FLOW PATH; (D) CONTINUOUSLY WITHDRAWING FROM SAID CYCLIC FLOW PATH PART OF THE RECYCLE SOLUTION STREAM AS A PRODUCT SOLUTION OF SAID METAL HYDROXIDE; (E) CONTINUOUSLY FEEDING THE REMAINDER OF SAID RECYCLE SOLUTION STREAM INTO SAID REACTOR AT RIGHT ANGLE TO AND SYMMETRICALLY ABOUT SAID STREAM OF METAL AT ABOUT THE POINT OF INJECTION OF THE LATTER; (F) AND CONTINUOUSLY FEEDING INTO SAID RECYCLE SOLUTION STREAM WATER AT SUCH A RATE AS WILL MAINTAIN SUBSTANTIALLY CONSTANT THE WATER CONTENT OF SAID RECYCLE SOLUTION STREAM BEING FED TO SAID REACTOR.
Claim 2
Independent Claim 289 words
THE METHOD OF PRODUCING HYDROGEN AND A HYDROXIDE OF A METAL OF THE GROUP CONSISTING OF SODIUM AND POTASSIUM, SAID METHOD COMPRISING: (A) CONTINUOUSLY CYCLING A STREAM OF AN AQUEOUS SOLUTION OF SAID HYROXIDE AT A TEMPERATURE FROM ABOUT 50*C. TO JUST BELOW THE BOILING POINT OF SAID SOLUTION IN A CONFINED CYCLIC FLOW PATH WHICH INCLUDES AS A PART THEREOF A PIPELINE REACTOR THROUGH WHICH SAID SOLUTION IS FORCED, UNDER TURBULENT FLOW AT A VELOCITY OF AT LEAST 1.3FT./SEC.; (B) CONTINUOUSLY INJECTING INTO SAID STREAM IN SAID REACTOR IN A DIRECTION OF FLOW OF SAID STREAM THEREIN A MOLTEN STREAM OF SAID METAL HAVING INITIALLY A DIAMETER NOT EXCEEDING 1 16 IN. AT A FLOW RATE SUCH THAT THE RELATIVE RATES OF FLOW TO SAID REACTOR OF SAID AQUEOUS SOLUTION AND SAID METAL WILL PROVIDE A WEIGHT RATIO OF WATER TO METAL OF AT LEAST 35/1, THEREBY REACTING IN SAID REACTOR SAID METAL AND SAID SOLUTION TO PRODUCE A TWO-PHASE STREAM OF HYDROGEN AND A SOLUTION OF THE HYDROXIDE OF SAID METAL; (C) CONTINUOUSLY PASSING SAID TWO-PHASE STREAM INTO A DISENGAGER WHEREBY SAID HYDROGEN IS SEPARATED FROM SAID SOLUTION STREAM, AND CONTINUOUSLY REMOVING THE SEPARATED HYDROGEN FROM SAID CYCLIC FLOW PATH; (D) CONTINUOUSLY WITHDRAWING FROM SAID CYCLIC FLOW PATH PART OF THE RECYCLE SOLUTION STREAM AS A PRODUCT SOLUTION OF SAID METAL HYDROXIDE; (E) CONTINUOUSLY FEEDING THE REMAINDER OF SAID RECYCLE SOLUTION STREAM INTO SAID REACTOR AT RIGHT ANGLE TO AND SYMMETRICALLY ABOUT SAID STREAM OF METAL AT ABOUT THE POINT OF INJECTION OF THE LATTER; (F) AND CONTINUOUSLY FEEDING INTO SAID RECYCLE SOLUTION STREAM WATER AT SUCH A RATE AS WILL MAINTAIN SUBSTANTIALLY CONSTANT THE WATER CONTENT OF SAID RECYCLE SOLUTION STREAM BEING FED TO SAID REACTOR.
Claim 3
Dependent Claim 112 words
THE MODIFICATION OF THE METHOD OF CLAIM 1 WHEREIN HYDROGEN CYANIDE IS CONTINUOUSLY FED INTO THE RECYCLE SOLUTION STREAM AT A RATE NOT EXCEEDING THAT STOICHOMETRICALLY EQUAL TO THE RATE OF INJECTION OF THE METAL IN STEP (B), WHEREBY THE METAL HYDROXIDE PRODUCED IN THE REACTOR IS CONVERTED BY REACTION WITH SAID HYDROGEN CYANIDE TO THE CYANIDE OF THE METAL; WHEREIN THE PRODUCT SOLUTION WITHDRAWN IN STEP (D) AND THE RECYCLE SOLUTION FED INTO THE REACTOR IN STEP (E) ARE SOLUTIONS OF THE CYANIDE OF THE METAL; AND WHEREIN THE SOLUTION CYCLED IN THE FLOW PATH IS CYCLED THEREIN AT A TEMPERATURE FROM ABOUT 50* C. UP TO BUT NOT EXCEEDING 80*C.

References Cited (Backward Citations)

US2527443A Cited
US2876066A Cited
US3015539A Cited
US2993754A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-11-21 1970-05-23 1970-11-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-11-21 1974-05-23 1974-11-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-11-21 1978-05-23 1978-11-22 $7700.00 Window Closed / Lapsed

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