{"id":5625,"date":"2026-08-29T11:20:00","date_gmt":"2026-08-29T11:20:00","guid":{"rendered":"https:\/\/beiyutitanium.com\/titanium-in-chlor-alkali-cells\/"},"modified":"2026-08-29T11:20:00","modified_gmt":"2026-08-29T11:20:00","slug":"titanium-in-chlor-alkali-cells","status":"publish","type":"post","link":"https:\/\/beiyutitanium.com\/fr\/titanium-in-chlor-alkali-cells\/","title":{"rendered":"Titane dans les cellules chlore-alcali : rev\u00eatement et informations de commande"},"content":{"rendered":"<p>Dans une cellule chlore-alcali, le titane n'assure pas l'\u00e9lectrochimie. Le rev\u00eatement s'en charge. Le titane est pr\u00e9sent car il s'agit d'un m\u00e9tal valve : lorsque le rev\u00eatement s'use jusqu'\u00e0 \u00eatre travers\u00e9, le substrat expos\u00e9 se repassive au lieu de se dissoudre, ce qui permet de rev\u00eatir \u00e0 nouveau la m\u00eame base d'anode au lieu de la mettre au rebut.<\/p>\n<h2>Quel rev\u00eatement convient \u00e0 un service au chlore<\/h2>\n<p>La famille de rev\u00eatement, et non le substrat, d\u00e9termine la r\u00e9action pour laquelle l'anode est con\u00e7ue, et l'utilisation de la mauvaise famille dans un service r\u00e9duit sa dur\u00e9e de vie :<\/p>\n<table>\n<tr>\n<th>Famille de rev\u00eatement<\/th>\n<th>Ce pour quoi le rev\u00eatement est con\u00e7u<\/th>\n<th>O\u00f9 il est normalement fourni<\/th>\n<\/tr>\n<tr>\n<td>\u00c0 base de ruth\u00e9nium<\/td>\n<td>D\u00e9gagement de chlore<\/td>\n<td>Production de soude caustique par diaphragme, \u00e9lectrolyse de l'hypochlorite de sodium<\/td>\n<\/tr>\n<tr>\n<td>\u00c0 base d'iridium<\/td>\n<td>D\u00e9gagement d'oxyg\u00e8ne<\/td>\n<td>Feuille de cuivre \u00e9lectrolytique, formation de feuille d'aluminium, galvanoplastie, service acide<\/td>\n<\/tr>\n<tr>\n<td>Plaqu\u00e9 platine<\/td>\n<td>Placage de platine<\/td>\n<td>\u00c9lectrolyse fonctionnelle de l'eau, placage de m\u00e9taux pr\u00e9cieux<\/td>\n<\/tr>\n<\/table>\n<p>Le d\u00e9gagement de chlore et le d\u00e9gagement d'oxyg\u00e8ne rel\u00e8vent d'\u00e9lectrochimies diff\u00e9rentes, et un rev\u00eatement r\u00e9gl\u00e9 pour l'un n'est pas une version moins ch\u00e8re de l'autre. Une demande de prix chlore-alcali qui ne mentionne que la taille de l'anode n'a pas encore pr\u00e9cis\u00e9 lequel des trois est n\u00e9cessaire.<\/p>\n<h2>Le domaine de fonctionnement dans lequel chaque rev\u00eatement est propos\u00e9<\/h2>\n<p>Quatre valeurs d\u00e9terminent si une anode convient \u00e0 la cellule, et une demande de prix qui les contient peut recevoir une r\u00e9ponse en une seule \u00e9tape\u00a0:<\/p>\n<table>\n<tr>\n<th>Famille de rev\u00eatement<\/th>\n<th>Densit\u00e9 de courant<\/th>\n<th>Temp\u00e9rature de fonctionnement<\/th>\n<th>\u00c9paisseur du rev\u00eatement<\/th>\n<th>Charge de m\u00e9tal pr\u00e9cieux<\/th>\n<\/tr>\n<tr>\n<td>\u00c0 base de ruth\u00e9nium<\/td>\n<td>Inf\u00e9rieur \u00e0 2000 A\/m&sup2;<\/td>\n<td>Indiqu\u00e9 avec le r\u00e9gime de service<\/td>\n<td>5 \u00e0 20 &micro;m<\/td>\n<td>5 \u00e0 20 g\/m&sup2;<\/td>\n<\/tr>\n<tr>\n<td>\u00c0 base d'iridium<\/td>\n<td>Inf\u00e9rieur \u00e0 2000 A\/m&sup2;<\/td>\n<td>Inf\u00e9rieur \u00e0 70 &deg;C<\/td>\n<td>Indiqu\u00e9 avec le r\u00e9gime de service<\/td>\n<td>10 \u00e0 45 g\/m&sup2;<\/td>\n<\/tr>\n<tr>\n<td>Plaqu\u00e9 platine<\/td>\n<td>Inf\u00e9rieur \u00e0 4000 A\/m&sup2;<\/td>\n<td>Inf\u00e9rieur \u00e0 80 &deg;C<\/td>\n<td>0.5 \u00e0 10 &micro;m<\/td>\n<td>Indiqu\u00e9 avec le r\u00e9gime de service<\/td>\n<\/tr>\n<\/table>\n<p>Le syst\u00e8me au ruth\u00e9nium est en outre limit\u00e9 par la concentration d'acide et est fourni pour un service \u00e0 l'acide chlorhydrique inf\u00e9rieur \u00e0 20 pour cent. La charge en m\u00e9tal pr\u00e9cieux est le champ que les demandes de prix omettent g\u00e9n\u00e9ralement, et elle influe sur la dur\u00e9e de vie en service, elle doit donc figurer \u00e0 c\u00f4t\u00e9 de la surface active plut\u00f4t que d'\u00eatre laiss\u00e9e \u00e0 l'appr\u00e9ciation du fournisseur.<\/p>\n<p>Comparez avant toute chose la ligne de densit\u00e9 de courant \u00e0 votre propre cellule. Le domaine publi\u00e9 pour le ruth\u00e9nium inf\u00e9rieur \u00e0 2000 A\/m&sup2; correspond aux conditions de service par diaphragme et hypochlorite. Les cellules chlore-alcali \u00e0 membrane fonctionnent \u00e0 une intensit\u00e9 consid\u00e9rablement plus \u00e9lev\u00e9e, une demande de prix provenant d'une usine \u00e0 membrane devrait donc indiquer le type de cellule et sa densit\u00e9 de courant de fonctionnement d\u00e8s la premi\u00e8re ligne, et faire confirmer le domaine correspondant plut\u00f4t que de le supposer d'apr\u00e8s cette page.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/beiyutitanium.com\/wp-content\/uploads\/2026\/06\/titanium-anode-electrode-assembly-beiyu.jpg\" alt=\"Coated titanium anode plate assembly with conductor bars\" width=\"800\" height=\"533\" \/><\/p>\n<h2>Pourquoi le substrat peut \u00eatre r\u00e9utilis\u00e9<\/h2>\n<p>Le titane est un m\u00e9tal valve, de sorte que lorsque le rev\u00eatement s'use, la base expos\u00e9e se repassive au lieu de se corroder, et le m\u00eame substrat peut \u00eatre d\u00e9cap\u00e9 et rev\u00eatu de nouveau plus d'une fois. Le d\u00e9capage s'effectue par sel fondu, \u00e9bullition acide ou \u00e9lectrolyse au sulfate, et le point auquel le rev\u00eatement de nouveau devient pr\u00e9f\u00e9rable au remplacement d\u00e9pend du co\u00fbt de l'augmentation de la tension de cellule. La d\u00e9cision de rev\u00eatir de nouveau rel\u00e8ve d'un calcul plut\u00f4t que d'une pr\u00e9f\u00e9rence\u00a0: le rev\u00eatement de nouveau devient l'option la moins co\u00fbteuse une fois que la perte due \u00e0 l'augmentation de la tension de cellule d\u00e9passe le co\u00fbt du rev\u00eatement de nouveau.<\/p>\n<p>Un acheteur qui pr\u00e9voit de rev\u00eatir de nouveau devrait le pr\u00e9ciser dans la demande de prix\u00a0: cela modifie ce que le plan du substrat et le d\u00e9tail de raccordement doivent pouvoir supporter.<\/p>\n<h2>Le c\u00f4t\u00e9 substrat de la commande<\/h2>\n<p>ASTM B265 r\u00e9git le substrat en titane sur lequel les anodes rev\u00eatues sont fabriqu\u00e9es, et ses limites d'\u00e9l\u00e9ments interstitiels constituent la diff\u00e9rence pratique entre les nuances de substrat. Selon ASTM B265, Grade 1, UNS R50250, limite l'oxyg\u00e8ne \u00e0 0,18 pour cent et le fer \u00e0 0,20 pour cent, offrant la base la plus formable pour les mailles et les formes fortement embouties\u00a0; selon la m\u00eame sp\u00e9cification, Grade 2, UNS R50400, autorise 0,25 pour cent d'oxyg\u00e8ne et 0,30 pour cent de fer avec une r\u00e9sistance \u00e0 la traction minimale de 345 MPa. Puisque le rev\u00eatement assure le travail \u00e9lectrochimique, ce sont ces limites de composition qu'un plan d'anode devrait indiquer pour le mat\u00e9riau de base plut\u00f4t qu'un nom commercial.<\/p>\n<p>La forme constitue une ligne de commande distincte du rev\u00eatement. Les anodes sont produites sous forme de plaque, barre, t\u00f4le, fil, maille, tube, anneau, bande et panier, et la maille est courante pour le service en cellule\u00a0: elle offre une plus grande surface active pour le m\u00eame encombrement et permet au gaz de quitter la surface. La forme adapt\u00e9e \u00e0 une cellule donn\u00e9e est une question de conception \u00e0 laquelle l'acheteur r\u00e9pond, et non une question tranch\u00e9e par la famille de rev\u00eatement.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/beiyutitanium.com\/wp-content\/uploads\/2026\/06\/titanium-mesh-anode-coated-beiyu.jpg\" alt=\"Coated titanium mesh anode with conductor bars\" width=\"800\" height=\"533\" \/><\/p>\n<h2>Ce qu'une demande de prix pour une anode chlore-alcali doit indiquer<\/h2>\n<p>Les cinq premiers champs concernent la cellule, les deux derniers concernent l'anode comme pi\u00e8ce physique. Il est impossible de r\u00e9pondre \u00e0 une demande de prix qui ne contient pas les cinq premiers.<\/p>\n<table>\n<tr>\n<th>Champ<\/th>\n<th>Pourquoi cela d\u00e9termine l'offre<\/th>\n<\/tr>\n<tr>\n<td>Type de cellule<\/td>\n<td>Diaphragme, membrane ou hypochlorite, cela d\u00e9termine le domaine applicable<\/td>\n<\/tr>\n<tr>\n<td>Famille de rev\u00eatement<\/td>\n<td>Ruth\u00e9nium pour le d\u00e9gagement de chlore, le service le d\u00e9termine, pas le prix<\/td>\n<\/tr>\n<tr>\n<td>Densit\u00e9 de courant<\/td>\n<td>Se situe dans le domaine ci-dessus<\/td>\n<\/tr>\n<tr>\n<td>\u00c9lectrolyte et concentration<\/td>\n<td>Le service au ruth\u00e9nium est limit\u00e9 \u00e0 moins de 20 pour cent d'acide chlorhydrique<\/td>\n<\/tr>\n<tr>\n<td>Temp\u00e9rature de fonctionnement<\/td>\n<td>Les syst\u00e8mes \u00e0 l'iridium et au platine ont des limites de temp\u00e9rature<\/td>\n<\/tr>\n<tr>\n<td>Charge de m\u00e9tal pr\u00e9cieux<\/td>\n<td>Influe sur la dur\u00e9e de vie en service, ce n'est pas une valeur par d\u00e9faut du fournisseur<\/td>\n<\/tr>\n<tr>\n<td>Nuance et forme du substrat<\/td>\n<td>Grade 1 ou Grade 2, sous forme de plaque, maille, tube, anneau, barre, fil ou panier<\/td>\n<\/tr>\n<tr>\n<td>Intention de rev\u00eatement de nouveau<\/td>\n<td>Modifie la conception du substrat et du raccordement<\/td>\n<\/tr>\n<\/table>\n<h2>D\u00e9tails des sp\u00e9cifications avec sources<\/h2>\n<p>Les valeurs de rev\u00eatement figurant sur cette page proviennent de la gamme d'approvisionnement d'anodes Beiyu Titanium\u00a0: rev\u00eatements \u00e0 base de ruth\u00e9nium inf\u00e9rieurs \u00e0 2000 A\/m&sup2; avec une \u00e9paisseur de 5 \u00e0 20 &micro;m et une charge de 5 \u00e0 20 g\/m&sup2;, limit\u00e9s \u00e0 moins de 20 pour cent d'acide chlorhydrique\u00a0; rev\u00eatements \u00e0 base d'iridium inf\u00e9rieurs \u00e0 2000 A\/m&sup2; et \u00e0 moins de 70 &deg;C avec 10 \u00e0 45 g\/m&sup2;\u00a0; rev\u00eatements plaqu\u00e9s platine inf\u00e9rieurs \u00e0 4000 A\/m&sup2; et \u00e0 moins de 80 &deg;C avec 0.5 \u00e0 10 &micro;m. Les anodes sont produites sous forme de plaque, barre, t\u00f4le, fil, maille, tube, anneau, bande et panier, r\u00e9pertori\u00e9es ensemble plut\u00f4t qu'une forme par service, cette page n'associe donc pas un rev\u00eatement \u00e0 une forme unique.<\/p>\n<p>Les limites de composition du substrat sont celles d'ASTM B265 pour Grade 1, UNS R50250, et Grade 2, UNS R50400. Le rev\u00eatement est d\u00e9crit par son proc\u00e9d\u00e9, et non par une sp\u00e9cification de mat\u00e9riau, ce qui explique pourquoi une commande d'anodes comporte deux acceptations. Le substrat en titane re\u00e7oit un certificat de r\u00e9ception 3.1 selon EN 10204 avec tra\u00e7abilit\u00e9 par num\u00e9ro de coul\u00e9e\u00a0; le rev\u00eatement est enregistr\u00e9 selon le proc\u00e9d\u00e9 par lequel il a \u00e9t\u00e9 appliqu\u00e9.<\/p>\n<h2>Pages associ\u00e9es<\/h2>\n<ul>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/mmo-coated-titanium-anode-guide\/\">guide sur les anodes en titane \u00e0 rev\u00eatement MMO<\/a><\/li>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/product\/ru-ir-titanium-anodes\/\">Anodes en titane Ru-Ir<\/a><\/li>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/product\/sodium-hypochlorite-titanium-anode-group\/\">Groupe d'anodes pour hypochlorite de sodium<\/a><\/li>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/product-category\/woo-products\/titanium\/titanium-anode\/\">Cat\u00e9gorie des anodes en titane<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>In a chlor-alkali cell the titanium is not doing the electrochemistry. The coating is. Titanium is there because it is a valve metal: where the coating wears through, the exposed substrate repassivates instead of dissolving, which is what lets the same anode base be recoated instead of being scrapped. Which coating a chlorine duty takes [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[27,137],"tags":[],"class_list":["post-5625","post","type-post","status-publish","format-standard","hentry","category-news","category-technical-guides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Titanium in Chlor-Alkali Cells: Coating and Ordering Fields - Beiyu Titanium<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/beiyutitanium.com\/fr\/titanium-in-chlor-alkali-cells\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Titanium in Chlor-Alkali Cells: Coating and Ordering Fields - Beiyu Titanium\" \/>\n<meta property=\"og:description\" content=\"In a chlor-alkali cell the titanium is not doing the electrochemistry. The coating is. Titanium is there because it is a valve metal: where the coating wears through, the exposed substrate repassivates instead of dissolving, which is what lets the same anode base be recoated instead of being scrapped. Which coating a chlorine duty takes [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/beiyutitanium.com\/fr\/titanium-in-chlor-alkali-cells\/\" \/>\n<meta property=\"og:site_name\" content=\"Beiyu Titanium\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-29T11:20:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/beiyutitanium.com\/wp-content\/uploads\/2026\/06\/titanium-anode-electrode-assembly-beiyu.jpg\" \/>\n<meta name=\"author\" content=\"Penn Ma\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Penn Ma\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-in-chlor-alkali-cells\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-in-chlor-alkali-cells\\\/\"},\"author\":{\"name\":\"Penn Ma\",\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/#\\\/schema\\\/person\\\/3560db17cf08813edf34f012735b971b\"},\"headline\":\"Titanium in Chlor-Alkali Cells: Coating and Ordering Fields\",\"datePublished\":\"2026-08-29T11:20:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-in-chlor-alkali-cells\\\/\"},\"wordCount\":972,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-in-chlor-alkali-cells\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/beiyutitanium.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/titanium-anode-electrode-assembly-beiyu.jpg\",\"articleSection\":[\"News\",\"Technical Guides\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/beiyutitanium.com\\\/titanium-in-chlor-alkali-cells\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-in-chlor-alkali-cells\\\/\",\"url\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-in-chlor-alkali-cells\\\/\",\"name\":\"Titanium in Chlor-Alkali Cells: Coating and Ordering Fields - 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