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The chloralkali process (also chlor-alkali and chlor alkali) is an industrial process for the electrolysis of sodium chloride (NaCl) solutions. It is the technology used to produce chlorine and sodium hydroxide (caustic soda), which are commodity chemicals required by industry. Thirty five million tons of chlorine were prepared by this process in 1987. The chlorine and sodium hydroxide produced in this process are widely used in the chemical industry.

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  • عملية الكلور القلوي (ar)
  • Chloralkali-Elektrolyse (de)
  • Proceso cloroalcalino (es)
  • Chloralkali process (en)
  • Procédé chlore-alcali (fr)
  • Processo cloro-soda (it)
  • 電解法 (ja)
  • Processo cloro-álcali (pt)
  • 氯碱法 (zh)
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  • عملية الكلور القلوي هي عملية كيميائية يتم فيها إنشاء غاز الكلور وغاز الهيدروجين وهيدروكسيد الصوديوم عن طريق عمليه التحليل الكهربائي طبقا للمعادلة التالية:2NaCl + 2 H2O → Cl2 + H2 + 2 NaOH أولا يتم إحضار محلول الماء الملحي وتتم علية عملية التحليل الكهربائي لينتج غاز الكلور وغاز الهيدروجين. بينما هيدروكسيد الصوديوم يبقى في المحلول الملحي. (ar)
  • Le procédé chlore-alcali ou électrolyse chlore-alcali est un procédé chimique d'électrosynthèse qui permet de préparer le dichlore (Cl2), le dihydrogène (H2) et un hydroxyde d'un métal alcalin ou alcalino-terreux. Cette préparation a lieu par électrolyse d'une solution de chlorure de ce métal. La première application industrielle de ce procédé a été faite en 1892. (fr)
  • 電解法(でんかいほう)は、一般的に電気分解による化学反応を用いた薬品の製造や処理の方法を指す。「電解法」には多様な方法が存在するが、いずれも電気エネルギーを加え、溶媒中のイオン化傾向の異なる物質を介して酸化還元反応を行うことで化合物を化学分解し、目的とする生産物を得たり処理を行う方法である。 (ja)
  • O cloro e o hidróxido de sódio (NaOH) são obtidos principalmente (mais de 95% da produção) a partir da eletrólise do cloreto de sódio, NaCl, em solução aquosa, denominado processo de cloro-álcali, são usados três métodos: * * * (pt)
  • 氯碱法,由电解饱和食盐水溶液制取氫氧化鈉、氯气和氢气的工业生产方法,是重要的基础化学工业之一。 (zh)
  • Mit der Chloralkali-Elektrolyse werden die wichtigen Grundchemikalien Chlor, Wasserstoff und Natronlauge aus Natriumchlorid und Wasser erzeugt. Der Begriff steht allgemein für die Herstellung mittels Elektrolyse, unabhängig davon, welche der Techniken verwendet wird. Mittels Elektrolyse können auch andere Metallsalze (Chloride von Alkalimetallen, Erdalkalimetallen und viele mehr) zu ihren Hydroxiden umgesetzt werden. Verwendet man beispielsweise Kaliumchlorid anstatt Natriumchlorid, erhält man Kalilauge. Die Chloralkali-Elektrolyse ist eine endotherme Reaktion. Die benötigte Energie von 454 kJ/mol wird in Form von elektrischem Strom zugeführt. Da Natronlauge, Chlor wie andere Grundchemikalien im Maßstab von Millionen Tonnen jährlich benötigt werden, ist die Elektrolyse enorm energieaufwend (de)
  • The chloralkali process (also chlor-alkali and chlor alkali) is an industrial process for the electrolysis of sodium chloride (NaCl) solutions. It is the technology used to produce chlorine and sodium hydroxide (caustic soda), which are commodity chemicals required by industry. Thirty five million tons of chlorine were prepared by this process in 1987. The chlorine and sodium hydroxide produced in this process are widely used in the chemical industry. (en)
  • El proceso cloroalcalino o proceso de cloralkali o cloro-alkali es un proceso industrial para la electrólisis de soluciones de cloruro de sodio. Es la tecnología utilizada para producir cloro e hidróxido de sodio (lejía/sosa cáustica),​ que son productos químicos requeridos por la industria. Este proceso preparó 35 millones de toneladas de cloro en 1987.​ La producción a escala industrial comenzó en 1892. (es)
  • Il processo cloro-soda è il processo chimico-industriale tramite il quale dal cloruro di sodio in soluzione (salamoia) si ottengono per elettrolisi cloro gassoso, Idrossido di sodio e idrogeno.I prodotti possono essere utilizzati all'interno dello stesso ciclo per produrre derivati quali acido cloridrico (per reazione di combustione dell'idrogeno con il cloro) e ipoclorito di sodio (per reazione fra il cloro gassoso e la soda caustica soluzione). (it)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Chloralkali_membrane.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Cell_room_of_a_chlorine-caustic_soda_plant.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/HgNaOHElectrolysis.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Old_drawing_of_a_Chlorine-Caustic_Soda_Plant_(Edgewood,_Maryland).jpg
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