US2544138A - Electrolytic cell with mobile mercury cathode - Google Patents

Electrolytic cell with mobile mercury cathode Download PDF

Info

Publication number
US2544138A
US2544138A US741978A US74197847A US2544138A US 2544138 A US2544138 A US 2544138A US 741978 A US741978 A US 741978A US 74197847 A US74197847 A US 74197847A US 2544138 A US2544138 A US 2544138A
Authority
US
United States
Prior art keywords
mercury
electrolytic
cell
electrolytic cell
compartment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US741978A
Other languages
English (en)
Inventor
Nora Oronzio De
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2544138A publication Critical patent/US2544138A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C25B1/36—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in mercury cathode cells
    • C25B1/42—Decomposition of amalgams
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/033—Liquid electrodes
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/30—Cells comprising movable electrodes, e.g. rotary electrodes; Assemblies of constructional parts thereof
    • C25B9/303—Cells comprising movable electrodes, e.g. rotary electrodes; Assemblies of constructional parts thereof comprising horizontal-type liquid electrode
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/70—Assemblies comprising two or more cells

Definitions

  • the present invention has as its object a particular disposition of the electrolytic cell and associated apparatus so as to considerably reduce the quantity of mercury employed, the copper necessary for the connection of the cells in circuit and the surface occupied by the cell and associated apparatus.
  • the plant comprises an elongated electrolytic cell having its bottom inclined so that the mobile cathode will flow longitudinally thereof from one end toward the other, and a disamalgamation apparatus connected with the cell for receiving the mobile cathode.
  • the disamalgamating apparatus is constructed in such a manner as to effect the subdivision of the amalgam flowing through the same and increase the duration of contact with the disamalgamating agent. Freed mercury is taken from the disamalgamating apparatus and returned to the upper end of the electrolytic cell through a tube lying parallel to the cell but oppositely inclined so that the mercury introduced into the tube will fiow to the upper inlet end of the cell.
  • Figure 1 is the schematic longitudinal sectional view of the plant according to the invention.
  • Fig. 2 is a similar view of a slightly modified form of the plant.
  • Figure 3 is a plan View of the plant of Fig. 1.
  • Figure 1 shows the electrolytic compartment A connected with the disamalgam'ation apparatus B, from which the mercury, by means of a pump C, is raised in the tube D, which feeds the electrolytic compartment A.
  • the cycle is closed and continuous.
  • FIG. 2 shows a modified form of the plant in which the electrolytic compartment A is con,-
  • FIG. 1 represents the coupling of two electrolytic compartments as those described in Figure 1 and connected electrically in series.
  • an electrolytic compartment A having a length equal to at least ten times its width, is fed with an almost saturated solution of an alkali metal chloride, and there is obtained an amalgam of sodium or potassium together with the formation of chlorine.
  • the produced alkali metal amalgam runs due to gravity down along the inclined bottom of the electrolytic compartment and is fed by means of a short conduit to the disamalgamation compartment B, through which the amalgam passes in a downward vertical direction.
  • the apparatus B comprises a tank with adequate section and height with reference to the capacity of the electrolytic apparatus, containing water or a solution of alkali metal hydrate, in which regular or irregular shaped pieces of graphite or similar material are immersed and placed as filling. These pieces of graphite can be substituted by pieces of other conducting material.
  • the apparatus B should be suitably built or covered with non-conducting material, and will contain a solution of alkali metal polysulphide and instead of the metallic filling, a non-conducting filling such as stone, glass or similar materials.
  • the regenerated mercury flows, due to gravity, into the pump C from the reaction apparatus and. is raised by the pump through the vertical portion of the return pipe D to a height equal to the height of the disamalgamator plus twice the difference in level between the two ends of the electrolytic compartment where then it flows by gravity down the other portion of the pipe D which has a slope equal and opposite to that of the electrolytic compartment.
  • the said other portion of pipe returns the regenerated mercury at E above an inlet mercury seal F to feed the electrolytic compartment A and to gen- :erate fresh amalgam.
  • the cycle is continuous.
  • a continuous cycle electrolytic cell with mobile mercury cathode comprising in combination an electrolytic compartment having an elongated" and narrow form, the length being at least ten times the Width, with a slightly inclined bottom, the slope being only that necessary for assuring the flow of the mercury and a vertical disamalgamation device positioned for vertical gravity flow of the amalgam from the electrolytic compartment therethrough, the disamalgamation device being disposed near the outlet end of the electrolytic cell, two portions of pipes providing connections for the return of -mercury to the cell from the disamalgamator, one of said, pipe portions being vertical and'of a length equal to the height of the disamalgamator plus twice the difierence in level between the two ends of the cell for conveying mercury from the bottom of the disamalgamator to a point as high above the lower end of the cell as twice the 25 difference in level of the two ends of the electrolytic cell, the other portion of pipe having a slope equal and opposite to that of the electrolytic cell, and being a continuation of the first

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
US741978A 1941-06-16 1947-04-17 Electrolytic cell with mobile mercury cathode Expired - Lifetime US2544138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT624129X 1941-06-16

Publications (1)

Publication Number Publication Date
US2544138A true US2544138A (en) 1951-03-06

Family

ID=11293434

Family Applications (1)

Application Number Title Priority Date Filing Date
US741978A Expired - Lifetime US2544138A (en) 1941-06-16 1947-04-17 Electrolytic cell with mobile mercury cathode

Country Status (7)

Country Link
US (1) US2544138A (d)
BE (1) BE470981A (d)
CH (1) CH233392A (d)
DE (1) DE940352C (d)
ES (1) ES176696A1 (d)
FR (1) FR890000A (d)
GB (1) GB624129A (d)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872403A (en) * 1955-02-03 1959-02-03 Basf Ag Electrolytic cell
US2944949A (en) * 1958-05-09 1960-07-12 Ici Ltd Process for the electrolytic separation of titanium from titanium scrap
US2952604A (en) * 1955-05-23 1960-09-13 Oronzio De Nora Impianti Electrolysis apparatus
US3398070A (en) * 1965-03-29 1968-08-20 Kureha Chemical Ind Co Ltd Mercury-cathode chlorine cells
US3878029A (en) * 1973-11-26 1975-04-15 Artisan Ind Compact multistage wiped-film evaporator apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US501783A (en) * 1893-07-18 eermite
US951229A (en) * 1908-12-16 1910-03-08 Whiting Company Electrolytic cell.
US2083648A (en) * 1932-02-25 1937-06-15 Ig Farbenindustrie Ag Preparation of alkali metal hydroxide solutions
US2316685A (en) * 1939-10-09 1943-04-13 Mathieson Alkali Works Inc Operation of mercury cells

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE643157C (de) * 1937-03-30 I G Farbenindustrie Akt Ges Vorrichtung zur elektrolytischen Herstellung von AEtzalkalilaugen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US501783A (en) * 1893-07-18 eermite
US951229A (en) * 1908-12-16 1910-03-08 Whiting Company Electrolytic cell.
US2083648A (en) * 1932-02-25 1937-06-15 Ig Farbenindustrie Ag Preparation of alkali metal hydroxide solutions
US2316685A (en) * 1939-10-09 1943-04-13 Mathieson Alkali Works Inc Operation of mercury cells

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872403A (en) * 1955-02-03 1959-02-03 Basf Ag Electrolytic cell
US2952604A (en) * 1955-05-23 1960-09-13 Oronzio De Nora Impianti Electrolysis apparatus
US2944949A (en) * 1958-05-09 1960-07-12 Ici Ltd Process for the electrolytic separation of titanium from titanium scrap
US3398070A (en) * 1965-03-29 1968-08-20 Kureha Chemical Ind Co Ltd Mercury-cathode chlorine cells
US3878029A (en) * 1973-11-26 1975-04-15 Artisan Ind Compact multistage wiped-film evaporator apparatus

Also Published As

Publication number Publication date
ES176696A1 (es) 1947-03-01
GB624129A (en) 1949-05-27
FR890000A (d) 1944-01-25
CH233392A (it) 1944-07-31
DE940352C (de) 1956-03-15
BE470981A (d)

Similar Documents

Publication Publication Date Title
CN102575365B (zh) 增大接触比表面积的有价金属回收用电解槽
US2544138A (en) Electrolytic cell with mobile mercury cathode
US3223611A (en) Anode basket with dangler for electrolytic plating
US3558466A (en) Electrolytic cell
US2083076A (en) Method for dissolving deliquescent material
US3702814A (en) Electrolytic recovery cell
US3418223A (en) Continuous process for producing magnesium metal from magnesium chloride including fused bath electrolysis
US3298946A (en) Electrolytic bipolar alkali chlorate cell
EP0114336A2 (en) Electrolyte cell for the automatic and intermittent production of chlorine water
US995476A (en) Electrolytic process.
US2392236A (en) Process for the manufacture of alkali hydroxides and apparatus for carrying out reactions
US2762765A (en) Methods and apparatus for electrolytic decomposition
US862783A (en) Electrolytic cell.
US2876192A (en) Amalgam producing apparatus
US2849393A (en) Cathodic device for electrolytic cells having a moving mercury cathode
US2104677A (en) Electrolytic cell
US2226784A (en) Electrolytic cell
US1937509A (en) Method of making beryllium and light alloys thereof
US877537A (en) Method of electrolyzing salts.
NO157844B (no) Innretning for brannslukking.
CN211463076U (zh) 一种甲基-4-甲氧基二苯胺生产用的催化剂添加辅助器
US1284403A (en) Zinc cell.
US1281064A (en) Gas-drier.
US695302A (en) Apparatus for the electrolytic decomposition of alkaline salts.
US742865A (en) Electrolytic process.