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Apparatus for the electrolytic production of alkali

  • US 3,864,236 A
  • Filed: 09/29/1972
  • Issued: 02/04/1975
  • Est. Priority Date: 09/29/1972
  • Status: Expired due to Term
First Claim
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1. AN ELECTROLYTIC APPARATUS WHICH COMPRISES A CELL, SAID CELL HAVING DISPOSED THEREIN A CATHODE AND AN ANODE, SAID CATHODE AND ANODE BEING SEPARATED BY A FLUID PERMEABLE DIAPHRAGM TO FORM AN ANODE COMPARTMENT CONTAINING SAID ANODE AND A CATHODE COMPARTMENT CONTAINING SAID CATHODE, SAID APPARATUS HAVING MEANS FOR PASSING HYDROGEN GAS THROUGH SAID ANODE INTO SAID ANODE COMPARTMENT, SAID ANODE INCLUDING A CATALYST FOR THE ELECTROCHEMICAL OXIDATION OF HYDROGEN GAS TO HYDROGEN IONS, SAID ANODE BEING FORMED IN TWO LAYERS, SAID FIRST LAYER BEING A POROUS SINTERED COARSE LAYER OF PLATINIZED TITANIUM AND SAID SECOND LAYER BEING A POROUS SINTERED FINER LAYER OF TITANIUM, SAID ANODE BEING POSITIONED SO THAT THE HYDROGEN GAS IS PASSED INITIALLY THROUGH SAID FIRST LAYER AND THEN THROUGH SAID SECOND LAYER INTO THE ANODE COMPARTMENT.

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