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GEA Group AG
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Metallgesellschaft AG
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Publication date
Application filed by Metallgesellschaft AGfiledCriticalMetallgesellschaft AG
Publication of ES315029A2publicationCriticalpatent/ES315029A2/es
Procedimiento para reducir el contenido en oxidos de nitro- geno de los gases residuales en plantas de acido nitrico de concentracion normal o superior a la azeotropica con proce- sos de alta presion.
Procedimiento para el aprovechamiento de soluciën que contiene sulfito amënico procedente del lavado del gas final de instalaciones de contacto de acido sulfurico