EP4700158A2 - Verfahren zur herstellung von chlorat - Google Patents

Verfahren zur herstellung von chlorat

Info

Publication number
EP4700158A2
EP4700158A2 EP26150662.0A EP26150662A EP4700158A2 EP 4700158 A2 EP4700158 A2 EP 4700158A2 EP 26150662 A EP26150662 A EP 26150662A EP 4700158 A2 EP4700158 A2 EP 4700158A2
Authority
EP
European Patent Office
Prior art keywords
electrolyte
ions
cell
brine
chlorate
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.)
Pending
Application number
EP26150662.0A
Other languages
English (en)
French (fr)
Inventor
Monica Santamaria
Francesco DI FRANCO
Giada TRANCHIDA
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.)
Chimica Bussi SpA Soc
Original Assignee
Chimica Bussi SpA Soc
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 Chimica Bussi SpA Soc filed Critical Chimica Bussi SpA Soc
Publication of EP4700158A2 publication Critical patent/EP4700158A2/de
Pending legal-status Critical Current

Links

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
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • C25B1/265—Chlorates
    • 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
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • 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

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 Non-Metals, Compounds, Apparatuses Therefor (AREA)
EP26150662.0A 2022-12-14 2023-12-13 Verfahren zur herstellung von chlorat Pending EP4700158A2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT102022000025551A IT202200025551A1 (it) 2022-12-14 2022-12-14 Procedimento per la produzione di clorati
PCT/IB2023/062619 WO2024127271A1 (en) 2022-12-14 2023-12-13 Process for the production of chlorates
EP23840775.3A EP4605582B1 (de) 2022-12-14 2023-12-13 Verfahren zur herstellung von chlorat

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP23840775.3A Division EP4605582B1 (de) 2022-12-14 2023-12-13 Verfahren zur herstellung von chlorat

Publications (1)

Publication Number Publication Date
EP4700158A2 true EP4700158A2 (de) 2026-02-25

Family

ID=85381179

Family Applications (2)

Application Number Title Priority Date Filing Date
EP23840775.3A Active EP4605582B1 (de) 2022-12-14 2023-12-13 Verfahren zur herstellung von chlorat
EP26150662.0A Pending EP4700158A2 (de) 2022-12-14 2023-12-13 Verfahren zur herstellung von chlorat

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP23840775.3A Active EP4605582B1 (de) 2022-12-14 2023-12-13 Verfahren zur herstellung von chlorat

Country Status (4)

Country Link
EP (2) EP4605582B1 (de)
ES (1) ES3063561T3 (de)
IT (1) IT202200025551A1 (de)
WO (1) WO2024127271A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007063081A2 (en) 2005-11-30 2007-06-07 Industrie De Nora S.P.A. System for the electrolytic production of sodium chlorate
ECSP19072006A (es) 2019-10-02 2019-11-30 Univ De Las Americas Sistema magnético de inmersión temporal automatizado para la micropropagación masal de especies vegetales

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5965004A (en) * 1996-03-13 1999-10-12 Sterling Pulp Chemicals, Ltd. Chlorine dioxide generation for water treatment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007063081A2 (en) 2005-11-30 2007-06-07 Industrie De Nora S.P.A. System for the electrolytic production of sodium chlorate
ECSP19072006A (es) 2019-10-02 2019-11-30 Univ De Las Americas Sistema magnético de inmersión temporal automatizado para la micropropagación masal de especies vegetales

Non-Patent Citations (34)

* Cited by examiner, † Cited by third party
Title
AHLBERG TIDBLAD ALINDBERGH G: "Surface analysis with ESCA and GD-OES of the film formed by cathodic reduction of chromate", ELECTROCHIM ACTA, vol. 36, no. 10, 1991, pages 1605 - 1610
CORNELL ASIMONSSON D: "Ruthenium Dioxide as Cathode Material for Hydrogen Evolution in Hydroxide and Chlorate Solutions", J ELECTROCHEM SOC, vol. 140, no. 11, 1993, pages 3123 - 3129
ENDRODI B, SIMIC N, WILDLOCK M, CORNELL A.: "A review of chromium(VI) use in chlorate electrolysis: Functions, challenges and suggested alternatives", ELECTROCHIM ACTA, vol. 234, no. 10102-40-6, 2017, pages 108 - 122
ENDRODI BDIAZ-MORALES OMATTINEN U ET AL.: "Selective electrochemical hydrogen evolution on cerium oxide protected catalyst surfaces", ELECTROCHIM ACTA, vol. 341, 2020
ENDRODI BSANDIN SSMULDERS V ET AL.: "Towards sustainable chlorate production: The effect of permanganate addition on current efficiency", J CLEAN PROD, vol. 182, 2018, pages 529 - 537
ENDRODI BSANDIN SWILDLOCK MSIMIC NCORNELL A: "Suppressed oxygen evolution during chlorate formation from hypochlorite in the presence of chromium(VI", J CHEM TECHNOL BIOTECHNOL, vol. 94, no. 5, 2019, pages 1520 - 1527
ENDRODI BSMULDERS VSIMIC N ET AL.: "In situ formed vanadium-oxide cathode coatings for selective hydrogen production", APPL CATAL B ENVIRON, vol. 244, November 2018 (2018-11-01), pages 233 - 239
ENDRODI BSTOJANOVIC ACUARTERO M ET AL.: "Selective Hydrogen Evolution on Manganese Oxide Coated Electrodes: New Cathodes for Sodium Chlorate Production", ACS SUSTAIN CHEM ENG, vol. 7, no. 14, 2019, pages 12170 - 12178
GAJIĆ-KRSTAJIĆ LMELEZOVIĆ NRJOVIĆ BMMARTELLI GNJOVIĆ VDKRSTAJI6 N V: "Fe-Mo alloy coatings as cathodes in chlorate production process", HEM IND, vol. 70, no. 1, 2016, pages 81 - 89
GEBERT ALACROIX MSAVADOGO OSCHULZ R: "Cathodes for chlorate electrolysis with nanocrystalline Ti-Ru-Fe-O catalyst", J APPL ELECTROCHEM, vol. 30, no. 9, 2000, pages 1061 - 1067
GHARBI OTHOMAS SSMITH CBIRBILIS N: "Chromate replacement: what does the future hold?", NPJ MATER DEGRAD, vol. 2, no. 1, 2018, pages 23 - 25
GOMES ASOBUSCH MWILDLOCK MSIMIC NAHLBERG E: "Understanding Selectivity in the Chlorate Process: A Step towards Efficient Hydrogen Production", CHEMISTRYSELECT, vol. 3, no. 23, 2018, pages 6683 - 6690
GOMES ASOSIMIC NWILDLOCK MMARTINELLI AAHLBERG E: "Electrochemical Investigation of the Hydrogen Evolution Reaction on Electrodeposited Films of Cr(OH)3 and Cr203 in Mild Alkaline Solutions", ELECTROCATALYSIS, vol. 9, no. 3, 2018, pages 333 - 342
GUSTAVSSON JHUMMELGARD CBACKSTROM J ET AL.: "In-situ activated hydrogen evolution by molybdate addition to neutral and alkaline electrolytes", J ELECTROCHEM SCI ENG, vol. 2, no. 3, 2012, pages 105 - 120
GUSTAVSSON JLI GHUMMELGARD CBACKSTROM JCORNELL A: "On the suppression of cathodic hypochlorite reduction by electrolyte additions of molybdate and chromate ions", J ELECTROCHEM SCI ENG, vol. 2, 2012, pages 185 - 198
GUSTAVSSON JNYLEN LCORNELL A: "Rare earth metal salts as potential alternatives to C (VI) in the chlorate process", J APPL ELECTROCHEM, vol. 40, no. 8, 2010, pages 1529 - 1536
HARDEE KLMITCHELL LK: "The Influence of Electrolyte Parameters on the Percent Oxygen Evolved from a Chlorate Cell", J ELECTROCHEM SOC., vol. 136, no. 11, 1989, pages 3314 - 3318
HEDENSTEDT KGOMES ASOBUSCH MAHLBERG E: "Study of Hypochlorite Reduction Related to the Sodium Chlorate Process", ELECTROCATALYSIS, vol. 7, no. 4, 2016, pages 326 - 335
HEDENSTEDT KSIMIC NWILDLOCK MAHLBERG E: "Current efficiency of individual electrodes in the sodium chlorate process: a pilot plant study", J APPL ELECTROCHEM, vol. 47, no. 9, 2017, pages 991 - 1008
HERLITZ F: "Inhibiting effect of oxidized zirconium on parasitic cathodic reactions in the sodium chlorate process. Part I: Hypochlorite reduction", J APPL ELECTROCHEM, vol. 31, no. 3, 2001, pages 307 - 311
JIN SVAN NESTE AGHALI EBOILY SSCHULZ R: "New Cathode Materials for Chlorate Electrolysis", J ELECTROCHEM SOC, vol. 144, no. 12, 1997, pages 4272 - 4279
KRSTAJIC NNAKIC VSPASOJEVIC M: "Hypochlorite production II. Direct electrolysis in a cell divided by an anionic membrane", JAPPL ELECTROCHEM, vol. 21, no. 7, 1991, pages 637 - 641
LAČNJEVAC UCJOVIC BMGAJI6-KRSTAJI6 LMKOVAČ JJOVIC VDKRSTAJI6 N V: "Ti substrate coated with composite Cr-MoO2 coatings as highly selective cathode materials in hypochlorite production", ELECTROCHIM ACTA, vol. 96, 2013, pages 34 - 42
LI MTWARDOWSKI ZMOK FTAM N: "Sodium molybdate-a possible alternate additive for sodium dichromate in the electrolytic production of sodium chlorate", J APPL ELECTROCHEM, vol. 37, no. 4, 2007, pages 499 - 504
LIDE DR: "CRC Handbook of Chemistry and Physics", TAYLOR & FRANCIS INC.
LINDBERGH GSIMONSSON D: "Inhibition of cathode reactions in sodium hydroxide solution containing chromate", ELECTROCHIM ACTA, vol. 36, no. 13, 1991, pages 1985 - 1994
NYLEN LCORNELL A: "Effects of electrolyte parameters on the iron/steel cathode potential in the chlorate process", JAPPL ELECTROCHEM, vol. 39, no. 1, 2009, pages 71 - 81
NYLEN LGUSTAVSSON JCORNELL A: "Cathodic Reactions on an Iron RDE in the Presence of Y(III", J ELECTROCHEM SOC, vol. 155, no. 10, 2008, pages 136
SAFIZADEH FSOROUR NGHALI EHOULACHI G: "Corrosion behavior of Fe-Mo and Fe-Mo-P cathodic coatings in the simulated electrolyte for sodium chlorate production", ELECTROCHIM ACTA, vol. 269, 2018, pages 340 - 349
SAFIZADEH FSOROUR NGHALI EHOULACHI G: "Study of the hydrogen evolution reaction on Fe-Mo-P coatings as cathodes for chlorate production", INT J HYDROGEN ENERGY, vol. 42, no. 8, 2017, pages 5455 - 5463
SMULDERS VSIMIC NGOMES ASOMEI BMUL G: "Electrochemical formation of Cr(III)-based films on Au electrodes", ELECTROCHIM ACTA, vol. 296, 2019, pages 1115 - 1121
TILAK B V.TARI KHOOVER CL: "Metal Anodes and Hydrogen Cathodes: Their Activity Towards O 2 Evolution and CIO3 - Reduction Reactions", J ELECTROCHEM SOC, vol. 135, no. 6, 1988, pages 1386 - 1392
WANNGARD J.: "The catalyzing effect of chromate in the chlorate formation reaction", CHEM ENG RES DES, vol. 121, no. 1, 2017, pages 438 - 447
WULFF JCORNELL A: "Cathodic current efficiency in the chlorate process", J APPL ELECTROCHEM, vol. 37, no. 1, 2007, pages 181 - 186

Also Published As

Publication number Publication date
IT202200025551A1 (it) 2024-06-14
WO2024127271A1 (en) 2024-06-20
ES3063561T3 (en) 2026-04-17
EP4605582C0 (de) 2026-01-28
EP4605582B1 (de) 2026-01-28
EP4605582A1 (de) 2025-08-27

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