Electrolytic titration apparatus

• US 4,133,733 A
• Filed: 06/17/1977
• Issued: 01/09/1979
• Est. Priority Date: 06/17/1977
• Status: Expired due to Term

• Current Assignee: Rosemount Analytical, Inc. (Emerson Electric Company)
• Original Assignee: Envirotech Corporation (Baker Hughes Company)
• Inventors: Moore, Robert T.
• Primary Examiner(s): Kaplan, G. L.
• Application Number:
  US05/807,479
• Time in Patent Office: 571 Days
• Field of Search: 204/195 T, 204/1 M, 73/23.1, 73/61.1 C
• US Class Current: 204/405
• CPC Class Codes: G01N 27/28 Electrolytic cell components
• CPC Class Codes: G01N 27/44 using electrolysis to generate a reagent, e.g. for titration

Abstract

An electrolytic titration cell of an electrolytic titration apparatus includes a reaction chamber without baffles and means for introducing gas as the means to mix electrolyte contained in the chamber. The cell further includes means for maintaining a constant level of electrolyte in the reaction chamber and electrodes removably mounted by means of septa.

Claims

1. An electrolytic cell for use in an electrolyte titration apparatus comprising:

a. a vessel having a bottom and a sidewall defining a chamber for containing liquid electrolyte;

b. means for introducing a carrier fluid containing a constituent to be titrated into contained electrolyte in said chamber;

c. first and second generating electrodes mounted in electrolytic communication with the contained electrolyte in said chamber to generate titrant, said second generating electrode being mounted through said sidewall directly in said chamber to extend horizontally in the contained electrolyte;

d. a sensor electrode mounted in said chamber to extend into the contained electrolyte;

e. a reference electrode mounted in electrolytic communication with the contained electrolyte in said chamber; and

f. means for introducing gas into said chamber for mixing, between horizontal stratas, the contained electrolyte therein without baffles.

2. An electrolytic cell according to claim 1 further including means for maintaining a constant level of contained electrolyte in said chamber.

3. A cell according to claim 2 further including means for mounting and removing said sensor electrode horizontally.

4. An electrolytic cell according to claim 1 wherein said sensor electrode is mounted above said second generating electrode and above the location at which the carrier fluid is introduced.

5. An electrolytic cell according to claim 4 wherein said second generating electrode is directly above the location at which the carrier fluid is introduced.

6. An electrolytic cell according to claim 1 wherein said sensor electrode and said second generating electrode are mounted to extend to the center of said chamber and the location at which the fluid containing the constituent to be titrated is introduced is near the center of said chamber.

7. An electrolytic cell according to claim 1 further including a compartment wherein said reference electrode is mounted, said compartment being in electrolytic communication with said chamber through an open capillary.

8. A cell according to claim 1 wherein said sensor electrode is rod-shaped.

9. A cell according to claim 1 wherein said second generating electrode is rod-shaped.

10. A cell according to claim 1 further including means for mounting and removing said second generating electrode horizontally.

12. An electrolytic cell according to claim 10 further including a means to continuously withdraw electrolyte through said outlet and means to continuously introduce electrolyte through said inlet.

11. An electrolytic cell for use in an electrolytic titration apparatus comprising:

a. a vessel defining a chamber for containing liquid electrolyte;

b. means for introducing a carrier fluid containing a constituent to be titrated into contained electrolyte in said chamber;

c. first and second generating electrodes mounted in electrolytic communication with the contained electrolyte in said chamber to cause the generation of a titrant, said second generating electrode being mounted directly into said chamber to extend in the contained electrolyte;

d. a sensor electrode mounted into said chamber in the contained electrolyte;

e. a reference electrode mounted in electrolytic communication with the contained electrolyte in said chamber; and

f. means for introducing and withdrawing electrolyte from said chamber to maintain a constant level of electrolyte in said chamber such that the electrolyte contained in said chamber is less than about three milliliters, said means including an inlet for introducing electrolyte to said chamber and an outlet for withdrawing electrolyte, said outlet being adjustably mounted in said chamber at the level to be maintained.

13. An electrolytic cell for use in an electrolytic titration apparatus comprising:

a. a vessel having a bottom and a sidewall defining a chamber for containing liquid electrolyte;

b. means for introducing a carrier fluid containing a constituent to be titrated into contained electrolyte in said chamber;

c. means for removably mounting first and second generating electrodes in electrolytic communication with the contained electrolyte in said chamber to provide for the generation of a tritrant, and the second generating electrode being mounted through said sidewall directly into said chamber to extend horizontally in the contained electrolyte;

d. means for removably mounting a sensor electrode horizontally into said chamber in the contained electrolyte;

e. means for mounting a reference electrode in electrolytic communication with the contained electrolyte in said chamber; and

f. means for introducing and withdrawing electrolyte from said chamber to maintain a constant level of electrolyte in said chamber such that the electrolyte contained in said chamber is less than about three milliliters.

16. An electrolytic cell according to claim 13 wherein said sensor electrode is mounted above said second generating electrode and above the location at which the carrier fluid is introduced.

17. An electrolytic cell according to claim 16 wherein said second generating electrode is directly above the location at which the fluid containing the constituent to be titrated is introduced.

14. An electrolytic cell for use in an electrolytic titration apparatus comprising:

a. a vessel defining a chamber for containing liquid electrolyte;

b. means for introducing a carrier fluid containing a constituent to be titrated into contained electrolyte in said chamber;

c. first and second generating electrodes mounted in electrolytic communication with the contained electrolyte in said chamber to cause the generation of a titrant, said second generating electrode being mounted directly into said chamber to extend in the contained electrolyte;

d. a sensor electrode mounted into said chamber in the contained electrolyte;

e. a reference electrode mounted in electrolytic communication with the contained electrolyte in said chamber; and

f. means for introducing and withdrawing electrolyte from said chamber to maintain a constant level of electrolyte in said chamber such that the quantity of electrolyte contained in said chamber and electrolyte providing the electrolytic communication with said first generating electrode and with the reference electrode is constant.

15. An electrolytic cell according to claim 14 wherein the means to maintain a constant level of contained electrolyte maintains a level such that the contained electrolyte in said chamber is less than about two milliliters.

18. An electrolytic cell according to claim 14 wherein said sensor electrode and said second generating electrode are mounted to extend to the center of said chamber and the location at which the carrier fluid is introduced is near the center of said chamber.

19. An electrolytic cell according to claim 14 further including a compartment wherein said reference electrode is mounted, said compartment being in electrolytic communication with said chamber through an open capillary.