초록 ▼

An electrolytic cell and a process for electrolysis using the cell are provided. The electrolytic cell is separated into an anode chamber and a cathode chamber by a fluorinated polymer membrane; wherein the membrane comprises: (a) at least 60 mole percent [CFX－CF2]where X=F or Cl; (b) an ion exchang

An electrolytic cell and a process for electrolysis using the cell are provided. The electrolytic cell is separated into an anode chamber and a cathode chamber by a fluorinated polymer membrane; wherein the membrane comprises: (a) at least 60 mole percent [CFX－CF2]where X=F or Cl; (b) an ion exchange equivalent weight of at least 600; (c) pendant sulfonyl ion exchange groups; and (d) pendant substantially fluorinated carbon groups which have no ion exchange functionality. These cells are particularly useful for the electrolysis of aqueous, alkali metal halides.

대표청구항 ▼

In an electrolytic cell of the type having an anode in an anode chamber; a cathode in a cathode chamber and an ion exchange membrane separating the anode chamber from the cathode chamber, wherein said membrane is a copolymer of CFXCF2, where X is F or Cl, and a fluorinated vinyl ether compound havin

In an electrolytic cell of the type having an anode in an anode chamber; a cathode in a cathode chamber and an ion exchange membrane separating the anode chamber from the cathode chamber, wherein said membrane is a copolymer of CFXCF2, where X is F or Cl, and a fluorinated vinyl ether compound having sulfonyl ion exchange functionality, wherein said copolymer has a polymeric backbone with sulfonyl-containing pendant groups attached thereto; wherein the improvement comprises the copolymer having additional pendant groups attached to the backbone represented by the formula: [Figure] where X′and X′″are independently selected from the group consisting of F, Cl and Br n′, a′and b′are independently zero or an integer greater than zero, provided n′+a′+b′≠0 Rf and Rf′are independently selected from the group consisting of fluorine, chlorine, fluoroalkyls and chlorofluoro alkyls.