Apparatus and process for producing and concentrating sulphuric acid, and components of the apparatus

The invention relates to an apparatus and a process for producing sulphuric acid by the contact process. This apparatus and this process use at least one gas-concentrated sulphuric acid contact plant, which may be in the form of a dehydration tower 10 and/or of one or more absorption towers 11, 12,...

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Bibliographic Details
Main Author FREDERICK WILLIAM STANLEY JONES ET FRANK SMITH
Format Patent
LanguageEnglish
French
Published 24.02.1984
Subjects
ALLOYS
BLASTING
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION
FERROUS OR NON-FERROUS ALLOYS
HEAT EXCHANGE IN GENERAL
HEATING
INORGANIC CHEMISTRY
LIGHTING
MECHANICAL ENGINEERING
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WEAPONS
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Summary:The invention relates to an apparatus and a process for producing sulphuric acid by the contact process. This apparatus and this process use at least one gas-concentrated sulphuric acid contact plant, which may be in the form of a dehydration tower 10 and/or of one or more absorption towers 11, 12, and heat exchangers 10G, 11G, 12G. The contact plant and/or the heat exchangers are made of austenitic stainless steel with a high silicon content which can also be used in plants for concentrating the sulphuric acid. The rates of corrosion obtained are reduced. Field of application: production of sulphuric acid. L'INVENTION CONCERNE UN APPAREIL ET UN PROCEDE DE PRODUCTION D'ACIDE SULFURIQUE PAR LE PROCEDE DE CONTACT.CET APPAREIL ET CE PROCEDE UTILISENT AU MOINS UNE UNITE DE CONTACT GAZ-ACIDE SULFURIQUE CONCENTRE, POUVANT SE PRESENTER SOUS LA FORME D'UNE TOUR 10 DE DESHYDRATATION ETOU D'UNE OU PLUSIEURS TOURS 11, 12 D'ABSORPTION, ET DES ECHANGEURS DE CHALEUR 10G, 11G, 12G. L'UNITE DE CONTACT ETOU LES ECHANGEURS DE CHALEUR SONT REALISES EN ACIER INOXYDABLE AUSTENITIQUE A FORTE TENEUR EN SILICIUM QUI PEUT EGALEMENT ETRE UTILISE DANS DES UNITES DE CONCENTRATION DE L'ACIDE SULFURIQUE. LES VITESSES DE CORROSION OBTENUES SONT REDUITES.DOMAINE D'APPLICATION : PRODUCTION D'ACIDE SULFURIQUE.
Bibliography:Application Number: FR19830009631