ES490032A0 - Metodo de aplicar urea para reducir la emision de oxidos de nitrogeno en soluciones que contienen acido nitroso e insta-lacion correspondiente.
- Google Patents
Metodo de aplicar urea para reducir la emision de oxidos de nitrogeno en soluciones que contienen acido nitroso e insta-lacion correspondiente.
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Norsk Hydro ASA
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Norsk Hydro ASA
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ES490032A1979-03-301980-03-28Metodo de aplicar urea para reducir la emision de oxidos de nitrogeno en soluciones que contienen acido nitroso e insta-lacion correspondiente.
ExpiredES8104140A1
(es)
Aperfeicoamentos em ou relativos a unidades cataliticas,pacote de telas de metal catalitico,processo de fabricacao de acido nitrico com uso do pacote ou unidade e acido produzido
Procedimiento de obtencion de acido nitrico de concentracion superior a la azeotropica y obtencion de acido nitrico de concentracion inferior a la misma