NO138152B - DEVICE FOR BIPOLAR, ELECTROLYTICAL CELLS OF THE FILTER PRESS TYPE FOR THE MANUFACTURE OF CHLORINE FROM AQUATIC ALKALICLORIDE SOLUTIONS - Google Patents
DEVICE FOR BIPOLAR, ELECTROLYTICAL CELLS OF THE FILTER PRESS TYPE FOR THE MANUFACTURE OF CHLORINE FROM AQUATIC ALKALICLORIDE SOLUTIONS Download PDFInfo
- Publication number
- NO138152B NO138152B NO2362/73A NO236273A NO138152B NO 138152 B NO138152 B NO 138152B NO 2362/73 A NO2362/73 A NO 2362/73A NO 236273 A NO236273 A NO 236273A NO 138152 B NO138152 B NO 138152B
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- Prior art keywords
- projection
- anode
- cathode
- ring
- bolt
- Prior art date
Links
- 229910052801 chlorine Inorganic materials 0.000 title claims description 9
- 239000000460 chlorine Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 14
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000004033 plastic Substances 0.000 description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- -1 platinum group metals Chemical class 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920004459 Kel-F® PCTFE Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical compound FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Description
Denne oppfinnelse angår en anordning ved elektrolytiske celler for fremstilling av klor og alkali, hvilke er al-minnelig kjent som filterpresse-varianter av diafragmacellen. Oppfinnelsen tilveiebringer et nytt to-punkts tetningssystem for sammenbolting av katode og anode gjennom skilleveggen, idet boltehullet samtidig tettes så elektrolytt ikke kan trenge inn. This invention relates to a device for electrolytic cells for the production of chlorine and alkali, which are generally known as filter press variants of the diaphragm cell. The invention provides a new two-point sealing system for bolting together the cathode and anode through the partition wall, the bolt hole being sealed at the same time so that electrolyte cannot penetrate.
Som det fremgår av boken Chlorine, ACS Monograph 154, J.S. Sconce, Editor, Reinhold Publishing Company, New York, N.y., 1962, har celler av diafragmatypen vært vanlig anvendt i mange år ved fremstilling av klor og alkali ut. fra vandige alkaliklorid-oppløsninger. Filterpressevarianten av diafragmacellen vinner terreng innen klorindustrien. Imidlertid er det stadig interesse for tilfredsstillende elektriske forbindelser mellom de enkelte celle-enheter som både er kompakte og lekkasjefrie. For noen celler er ytre elektriske forbindelser fra en enkeltcelle til den .neste ikke tilfredsstillende. Ved andre celler, se f.eks. US-patent 3 242 059, anvendes kostbare deler av titanmetall både som celleskille og til elektriske forbindelser. For å oppnå tilfredsstillende kompakthet og økonomi ved filterpresseceller ønsker man en effektiv lekkasjefri elektrisk forbindelse som muliggjør bruk av skillevegger av plast. As stated in the book Chlorine, ACS Monograph 154, J.S. Sconce, Editor, Reinhold Publishing Company, New York, N.y., 1962, diaphragm type cells have been commonly used for many years in the production of chlorine and alkali ut. from aqueous alkali chloride solutions. The filter press variant of the diaphragm cell is gaining ground within the chlorine industry. However, there is still interest in satisfactory electrical connections between the individual cell units that are both compact and leak-free. For some cells, external electrical connections from one individual cell to the next are not satisfactory. For other cells, see e.g. US patent 3 242 059, expensive parts of titanium metal are used both as cell separators and for electrical connections. In order to achieve satisfactory compactness and economy with filter press cells, one wants an efficient leak-free electrical connection that enables the use of plastic partitions.
Den foreliggende oppfinnelse angår en anordning ved bipolare, elektrolytiske celler av filtérpressetypen for fremstilling av klor fra vandige alkalimetallkloridoppløsninger, hvor metallanoden (1) og metallkatbden (3) i naboceller er i direkte elektrisk forbindelse med hverandre ved en gjenget inngrepsanordning, og anoden og katoden holdes i avstand fra hverandre ved en mellomliggende.elektrisk inaktiv skillevegg (2), karakterisert ved en uavhengig opprettholdelse av egnede elektriske og mekaniske forbindelser mellom anoden (1) og katoden (3) i naboceller, idet elektrolytt- og gass-strømning gjennom skilleveggforbindelsen mellom anode og katode hindres ved følgende trekk i kombinasjon: (1) et fremspring er festet til hver anode og katode og er anordnet slik at de møtes, hvilke fremspring (4,5) har hovedsakelig samme materialsammensetning som den elektrode til hvilken de respektive fremspring er festet, og er forsynt med en O-ring (6,6a,7,7a) på den side av hvert anode- og katode-fremspring som er i kontakt med skilleveggen (2), hvilken O-ring omgir den gjengede inngrepsanordning i hvert fremspring og holdes på plass ved en kanal (14,16) anordnet i fremspringet (4,5), hvilken kanal har en dybde som er 0,5-0,9 av O-ringens tverrsnittsdiameter i ukomprimert tilstand, hvorved O-ringen kommer under kompresjonstrykk når anoden og katoden er i elektrisk forbindelse med hverandre, og (2) hvert fremspring (4,5) har en trykkopptakende flate (12,13) som passer sammen med det andre fremspringet og omgir den gjengede inngrepsanordning, et fremspring (5) har en åpning (22) for en bolt (20) som går gjennom fremspringet og inn i det andre fremspringet (4), hvilken bolt har hovedsakelig samme materialsammensetning som det fremspring gjennom hvilket den er lagt, og det førstnevnte fremspring (5) har også en trykkopptakende flate (10) som tilsvarer og passer sammen med den trykkopptakende flate (9<1>) på bolten. En foretrukken utførelsesform går ut på at de møtende overflater (12,13) på fremspringene (4,5) er plane. En annen foretrukken utførelsesform går ut på at de møtende overflater (12,13) på fremspringene (4,5) er koniske. The present invention relates to a device for bipolar electrolytic cells of the filter press type for the production of chlorine from aqueous alkali metal chloride solutions, where the metal anode (1) and the metal cathode (3) in neighboring cells are in direct electrical connection with each other by means of a threaded engagement device, and the anode and cathode are held at a distance from each other by an intermediate electrically inactive partition wall (2), characterized by an independent maintenance of suitable electrical and mechanical connections between the anode (1) and the cathode (3) in neighboring cells, electrolyte and gas flow through the partition wall connection between anode and cathode are prevented by the following features in combination: (1) a projection is attached to each anode and cathode and is arranged so that they meet, which projections (4,5) have essentially the same material composition as the electrode to which the respective projections are attached , and is provided with an O-ring (6,6a,7,7a) on the side of each anode and cathode projection ing which is in contact with the partition (2), which O-ring surrounds the threaded engagement device in each projection and is held in place by a channel (14,16) provided in the projection (4,5), which channel has a depth of 0.5-0.9 of the cross-sectional diameter of the O-ring in the uncompressed state, whereby the O-ring comes under compression pressure when the anode and cathode are in electrical connection with each other, and (2) each protrusion (4,5) has a pressure-receiving surface ( 12,13) which mates with the second projection and surrounds the threaded engagement device, a projection (5) having an opening (22) for a bolt (20) passing through the projection and into the second projection (4), which bolt has essentially the same material composition as the projection through which it is laid, and the first-mentioned projection (5) also has a pressure-absorbing surface (10) which corresponds and fits together with the pressure-absorbing surface (9<1>) on the bolt. A preferred embodiment is that the facing surfaces (12,13) of the projections (4,5) are flat. Another preferred embodiment is that the facing surfaces (12,13) of the projections (4,5) are conical.
De nevnte O-ringer og trykkopptakende flater er slik anordnet at når bolten (20) stikkes gjennom det førstnevnte fremspring (5) og forbindes med det andre fremspringet (4), så vil både O-ringene og de nevnte trykkopptakende flater komme under kompresjonstrykk hovedsakelig på samme tid, men kompresjonstrykket på O-ringene er likevel uavhengig av kompresjonstrykket mellom de nevnte trykkopptakende metallflater, og kompresjonstrykket mellom disse trykkopptakende metallflater på fremspringet vil være hovedsakelig uavhengig av de forandringer i kompresjonstrykk i O-ringen som skyldes forandringer i ringens fysiske egenskaper, idet 0-ringen virker som en pakning. The mentioned O-rings and pressure-absorbing surfaces are arranged in such a way that when the bolt (20) is inserted through the first-mentioned projection (5) and connected to the second projection (4), both the O-rings and the mentioned pressure-absorbing surfaces will come under compression pressure mainly at the same time, but the compression pressure on the O-rings is nevertheless independent of the compression pressure between the aforementioned pressure-absorbing metal surfaces, and the compression pressure between these pressure-absorbing metal surfaces on the projection will be mainly independent of the changes in compression pressure in the O-ring which are due to changes in the ring's physical properties, as the 0-ring acts as a gasket.
Tegningen viser et snitt gjennom elektrodeforbindelsen og tetningen tatt på langs gjennom midten av bolten som forbin-der anoden og katoden. The drawing shows a section through the electrode connection and the seal taken lengthwise through the middle of the bolt which connects the anode and cathode.
I den på tegningen viste utførelsesform er en typisk bipolar elektrolysecelle for fremstilling av klor og alkali forsynt med en metallanode 1, en skillevegg 2 av plast mellom naboceller i elektrolysøren og en metallkatode 3 tilhørende nabo-cellen. For å lette sammenboltingen av anoden 1 og katoden 3 In the embodiment shown in the drawing, a typical bipolar electrolysis cell for the production of chlorine and alkali is provided with a metal anode 1, a plastic partition 2 between neighboring cells in the electrolyser and a metal cathode 3 belonging to the neighboring cell. To facilitate the bolting together of the anode 1 and the cathode 3
har anoden 1 et anodefremspring 4, og et tilsvarende katodefrem-spring 5 er festet til katoden 3 på en slik måte at det gjengede boltehull 18 i anodefremspringet 4, hullet 22 i katodefremspringet og katoden 3 vil være på linje med hverandre, slik at bolten 20 kan stikkes inn og bringes i inngrep uten vanskelighet. Den mekaniske og elektriske forbindelse tilveiebringes ved at man stikker bolten 20 gjennom en elektrode (for illustrasjonsformål er bolten 20 vist lagt gjennom katoden 3, men man kunne selvsagt velge og stikke bolten inn fra den andre siden gjennom anoden 1) og fremspringet på denne elektrode og videre inn i det gjengede hull 18 the anode 1 has an anode projection 4, and a corresponding cathode projection 5 is attached to the cathode 3 in such a way that the threaded bolt hole 18 in the anode projection 4, the hole 22 in the cathode projection and the cathode 3 will be in line with each other, so that the bolt 20 can be inserted and engaged without difficulty. The mechanical and electrical connection is provided by inserting the bolt 20 through an electrode (for illustration purposes, the bolt 20 is shown placed through the cathode 3, but one could of course choose and insert the bolt from the other side through the anode 1) and the projection on this electrode and further into the threaded hole 18
i det andre fremspringet 4, slik at den gjengede bolt 20 kommer i inngrep med gjengene 11 i anodefremspringet. Bolten 20 skrues helt inn inntil kontakt oppnås ved (A) den trykkopptakende flate 9' på bolteholdet 9 og den trykkopptakende flate 10 på katodefremspringet og (B) den trykkopptakende flate 12 på katodefremspringet 5 og den trykkopptakende flate 13 på anodefremspringet 4. De nevnte trykkopptakende flater, som på tegningen er vist som plane flater, kan godt være skrå eller koniske, idet formen er av sekundær betydning bare de forskjellige deler kommer i god kontakt med hverandre, som forklart ovenfor, under dannelse av en sterk mekanisk forbindelse og en god elektrisk kontakt. For fullstendighetens skyld (skjønt det er selvinnlysende) nevnes at skilleveggen 2 har en åpning eller et hull gjennom hvilket en del av et fremspring rager fram til kontakt med det andre fremspringet. Hullet er imidlertid vesentlig mindre enn fremspringet. Det foretrekkes at anodefremspringet.4 og katodefremspringet 5 har i det vesentlige de samme radiale dimensjoner. in the second projection 4, so that the threaded bolt 20 engages with the threads 11 in the anode projection. The bolt 20 is screwed in completely until contact is achieved at (A) the pressure absorbing surface 9' on the bolt holder 9 and the pressure absorbing surface 10 on the cathode projection and (B) the pressure absorbing surface 12 on the cathode projection 5 and the pressure absorbing surface 13 on the anode projection 4. The aforementioned pressure absorbing surfaces, which in the drawing are shown as flat surfaces, may well be inclined or conical, the shape being of secondary importance only the different parts come into good contact with each other, as explained above, forming a strong mechanical connection and a good electrical contact. For the sake of completeness (although it is self-evident) it is mentioned that the partition wall 2 has an opening or a hole through which part of a projection protrudes into contact with the other projection. However, the hole is significantly smaller than the projection. It is preferred that the anode projection 4 and the cathode projection 5 have essentially the same radial dimensions.
Et annet hovedtrekk ifølge oppfinnelsen er tetningen. Plastskilleveggen 2 er mekanisk fastklemt mellom anodefremspringet 4 og katodefremspringet 5 ved den ovenfor beskrevne sammenbolting. For oppnåelse av den ønskede tetning på hvert fremspring er det utskåret eller på annen måte tilveiebragt et kammer 14, 16 for opptakelse av en O-ring (6 og 6a eller 7 og 7a), hvilket kammer omgir (fortrinnsvis konsentrisk) boltehullet 22, 18 og er anordnet på den del av fremspringet som vender mot det andre fremspringet og som ellers ville være i kontakt med skilleveggen 2. I hvert kammer 14, 16 er det anbragt en O-ring (6 og 6a eller 7 og 7a). Dybden av kamrene 14, 16 er 0,5-0,9 av tverrsnitts-diameteren av den usammenpressede O-ring. Trykket på 0-ringen 6, 7 er i det vesentlige uavhengig av trykket mot de ovennevnte trykkopptakende flater (ved 9' og 10, 12 og 13), selv om de alle kommer under kompresjonstrykk på tilnærmet samme tid. O-ringens fysiske egenskaper gjør at den virker som en pakning. Another main feature according to the invention is the seal. The plastic partition 2 is mechanically clamped between the anode projection 4 and the cathode projection 5 by the bolting described above. To achieve the desired seal on each projection, a chamber 14, 16 is cut out or otherwise provided for receiving an O-ring (6 and 6a or 7 and 7a), which chamber surrounds (preferably concentrically) the bolt hole 22, 18 and is arranged on the part of the projection which faces the other projection and which would otherwise be in contact with the partition wall 2. An O-ring (6 and 6a or 7 and 7a) is arranged in each chamber 14, 16. The depth of the chambers 14, 16 is 0.5-0.9 of the cross-sectional diameter of the uncompressed O-ring. The pressure on the 0-ring 6, 7 is essentially independent of the pressure against the above-mentioned pressure absorbing surfaces (at 9' and 10, 12 and 13), even though they all come under compression pressure at approximately the same time. The O-ring's physical properties make it act as a gasket.
Anodefremspringet kan festet til anoden 1 ved sveising, f.eks. ved punktsveising til et anodeunderlag av ekspandert tråd-duk av titan om så ønskes, og er hensiktsmessig av et ventilmetall eller en legering derav. Med ventilmetaller menes metallene wolfram, titan, zirkonium, tantal og niob. Fortrinnsvis anvendes titan eller tantal, normalt i en i handelen forekommende ren kvalitet, f.eks. elektrolytisk metall. Legeringer av titan kan brukes forutsatt at legeringen tilfredsstiller passivitets-kriteriet; metall-legeringer som blir passivert når de polariseres anodisk kan forbli passive godt forbi det anodepotensialet som er nødvendig for å omdanne kloridion til klor. Passivitetsfenomenet er beskrevet i en artikkel av Greene i Corrosion av april 1962, side 136-t til 142-t, hvor fig. 1 beskriver typisk aktiv-passiv-transisjon av et metall overfor et korrosivt medium. Legeringer - av titan og aluminium, vanadium, palladium, krom eller tinn kan brukes når de sistnevnte metaller utgjør mindre enn 10% av legeringen. The anode projection can be attached to the anode 1 by welding, e.g. by spot welding to an anode substrate of expanded wire cloth of titanium if desired, and is suitably of a valve metal or an alloy thereof. Valve metals mean the metals tungsten, titanium, zirconium, tantalum and niobium. Titanium or tantalum is preferably used, normally in a commercially available pure quality, e.g. electrolytic metal. Alloys of titanium can be used provided that the alloy satisfies the passivity criterion; metal alloys that become passivated when anodically polarized can remain passive well past the anode potential necessary to convert chloride ion to chlorine. The passivity phenomenon is described in an article by Greene in Corrosion of April 1962, pages 136-t to 142-t, where fig. 1 describes the typical active-passive transition of a metal against a corrosive medium. Alloys - of titanium and aluminium, vanadium, palladium, chromium or tin can be used when the latter metals make up less than 10% of the alloy.
Det er kjent å belegge anoden 1 med i det minste ett metall fra platinagruppen eller en forbindelse herav, eksempelvis et oksyd. Platinagruppemetallene innbefatter platina, ruthenium, osmium, rhodium, iridium og palladium og legeringer av to eller flere av disse metaller. Denne gruppe betegnes bekvemt som platina da platina er det foretrukne metall i gruppen. It is known to coat the anode 1 with at least one metal from the platinum group or a compound thereof, for example an oxide. The platinum group metals include platinum, ruthenium, osmium, rhodium, iridium and palladium and alloys of two or more of these metals. This group is conveniently referred to as platinum as platinum is the preferred metal in the group.
Katoden 3 og katodefremspringet 5 kan også hensiktsmessig forbindes ved sveising og er hensiktsmessig laget av et jernbasert metall, som i og for seg kjent, fortrinnsvis jern eller stål. The cathode 3 and the cathode projection 5 can also suitably be connected by welding and are suitably made of an iron-based metal, which is known per se, preferably iron or steel.
Bolten "20 er fortrinnsvis av det samme eller et lig-nende metall som den elektrode gjennom hvilken den er lagt. Den på tegningen viste bolt 20 er hensiktsmessig av jern eller stål. The bolt "20 is preferably of the same or a similar metal as the electrode through which it is placed. The bolt 20 shown in the drawing is suitably made of iron or steel.
O-ringene 6, 7 og plastskilleveggen 2 kan være av hvilken som helst i og for seg kjent, egnet materiale, f.eks. gummi, klorerte plastmaterialer, polypropylen og polymerer og kopolymerer av trifluorkloretylen, tetrakloretylen og tetrafluor-etylen, eksempelvis "Teflon" og "Kel-F". Det vil umiddelbart være klart at skilleveggen 2 kan inneholde forsterkningsmaterialer, eksempelvis fyllstoffer som kjønrøk eller asbest for oppnåelse av visse strukturelle egenskaper og kjemisk motstandsdyktighet som ellers ikke er nødvendige for en O-ring. The O-rings 6, 7 and the plastic partition wall 2 can be of any known, suitable material, e.g. rubber, chlorinated plastic materials, polypropylene and polymers and copolymers of trifluorochloroethylene, tetrachloroethylene and tetrafluoroethylene, for example "Teflon" and "Kel-F". It will be immediately clear that the partition wall 2 can contain reinforcement materials, for example fillers such as carbon black or asbestos to achieve certain structural properties and chemical resistance which are otherwise not necessary for an O-ring.
Det -vil forstås at hver anode og katode selvsagt kan It -will be understood that each anode and cathode can of course
ha mer enn ett fremspring 4, 5 med tilbehør som beskrevet. have more than one projection 4, 5 with accessories as described.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26039572A | 1972-06-07 | 1972-06-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO138152B true NO138152B (en) | 1978-04-03 |
| NO138152C NO138152C (en) | 1978-07-12 |
Family
ID=22988995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO2362/73A NO138152C (en) | 1972-06-07 | 1973-06-05 | DEVICE FOR BIPOLAR, ELECTROLYTICAL CELLS OF THE FILTER PRESS TYPE FOR THE MANUFACTURE OF CHLORINE FROM AQUATIC ALKALICLORIDE SOLUTIONS |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3752757A (en) |
| JP (1) | JPS535880B2 (en) |
| BE (1) | BE800601A (en) |
| CA (1) | CA1009183A (en) |
| DE (1) | DE2328770A1 (en) |
| FR (1) | FR2187415B1 (en) |
| GB (1) | GB1435129A (en) |
| IT (1) | IT985333B (en) |
| NO (1) | NO138152C (en) |
| SE (1) | SE392130B (en) |
| ZA (1) | ZA733828B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3873437A (en) * | 1972-11-09 | 1975-03-25 | Diamond Shamrock Corp | Electrode assembly for multipolar electrolytic cells |
| FR2280433A1 (en) * | 1974-07-29 | 1976-02-27 | Rhone Poulenc Ind | ELECTROLYSIS CELL WITH BIPOLAR ELEMENTS, MODULAR STRUCTURE |
| FR2280432A1 (en) * | 1974-07-29 | 1976-02-27 | Rhone Poulenc Ind | ELECTROLYSIS CELL WITH BIPOLAR ELEMENTS FOR ELECTROLYSIS IN PARTICULAR ALKALINE SALT SOLUTIONS |
| US3970539A (en) * | 1974-12-23 | 1976-07-20 | Basf Wyandotte Corporation | End connector for filter press cell |
| FR2297672A1 (en) * | 1975-01-14 | 1976-08-13 | Rech Tech Et Indles | ELECTROLYZER |
| US4085027A (en) * | 1975-01-29 | 1978-04-18 | Kerr-Mcgee Chemical Corporation | Hybrid bipolar electrode |
| US4069130A (en) * | 1975-01-29 | 1978-01-17 | Kerr-Mcgee Chemical Corporation | Bipolar electrode and method for constructing same |
| JPS5413473A (en) * | 1977-02-17 | 1979-01-31 | Kurorin Engineers Kk | Double polar electrode |
| US4224130A (en) * | 1978-02-13 | 1980-09-23 | The Dow Chemical Company | Electrolytic diaphragm cell |
| JPS5569278A (en) * | 1978-11-17 | 1980-05-24 | Kureha Chem Ind Co Ltd | Frame of carbon fiber-high molecular composite material electrolytic cell |
| US4422921A (en) * | 1981-08-19 | 1983-12-27 | Basf Aktiengesellschaft | Bipolar electrodes with graphite as the carrier and their production |
| US4568434A (en) * | 1983-03-07 | 1986-02-04 | The Dow Chemical Company | Unitary central cell element for filter press electrolysis cell structure employing a zero gap configuration and process utilizing said cell |
| US4560452A (en) * | 1983-03-07 | 1985-12-24 | The Dow Chemical Company | Unitary central cell element for depolarized, filter press electrolysis cells and process using said element |
| US4673479A (en) * | 1983-03-07 | 1987-06-16 | The Dow Chemical Company | Fabricated electrochemical cell |
| US4581114A (en) * | 1983-03-07 | 1986-04-08 | The Dow Chemical Company | Method of making a unitary central cell structural element for both monopolar and bipolar filter press type electrolysis cell structural units |
| US4488946A (en) * | 1983-03-07 | 1984-12-18 | The Dow Chemical Company | Unitary central cell element for filter press electrolysis cell structure and use thereof in the electrolysis of sodium chloride |
| US4604171A (en) * | 1984-12-17 | 1986-08-05 | The Dow Chemical Company | Unitary central cell element for filter press, solid polymer electrolyte electrolysis cell structure and process using said structure |
| US5013414A (en) * | 1989-04-19 | 1991-05-07 | The Dow Chemical Company | Electrode structure for an electrolytic cell and electrolytic process used therein |
| JP3282691B2 (en) * | 1993-04-30 | 2002-05-20 | クロリンエンジニアズ株式会社 | Electrolytic cell |
| US20130029194A1 (en) * | 2011-07-28 | 2013-01-31 | Zinc Air Incorporated | Module for an Electrical Charge Storage Apparatus Including a Seal Layer and a Method of Making the Same |
-
1972
- 1972-06-07 US US00260395A patent/US3752757A/en not_active Expired - Lifetime
-
1973
- 1973-06-04 SE SE7307849A patent/SE392130B/en unknown
- 1973-06-05 NO NO2362/73A patent/NO138152C/en unknown
- 1973-06-06 ZA ZA733828A patent/ZA733828B/en unknown
- 1973-06-06 GB GB2701873A patent/GB1435129A/en not_active Expired
- 1973-06-06 IT IT50482/73A patent/IT985333B/en active
- 1973-06-06 DE DE2328770A patent/DE2328770A1/en not_active Withdrawn
- 1973-06-06 CA CA173,300A patent/CA1009183A/en not_active Expired
- 1973-06-07 JP JP6345473A patent/JPS535880B2/ja not_active Expired
- 1973-06-07 BE BE132000A patent/BE800601A/en unknown
- 1973-06-07 FR FR7320759A patent/FR2187415B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE392130B (en) | 1977-03-14 |
| JPS535880B2 (en) | 1978-03-02 |
| BE800601A (en) | 1973-10-01 |
| ZA733828B (en) | 1974-05-29 |
| US3752757A (en) | 1973-08-14 |
| GB1435129A (en) | 1976-05-12 |
| FR2187415B1 (en) | 1976-11-12 |
| CA1009183A (en) | 1977-04-26 |
| NO138152C (en) | 1978-07-12 |
| FR2187415A1 (en) | 1974-01-18 |
| DE2328770A1 (en) | 1974-01-03 |
| JPS5046599A (en) | 1975-04-25 |
| IT985333B (en) | 1974-11-30 |
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