专利名称：Process for the preparation of 1-amino-8-hydroxy naphthalene-3,6-disulphonic acids(H-acids).
发明人：SCHOSSLER, WILLI, DR.,PUTTER, ROLF,
DR.,BEHRE, HORST, DR.
申请号：EP78100358.7申请日：19780711公开号：EP0000495B1公开日：19801126
摘要：process for the production of h - acid - monoalkatisaizen through
implementation of t - acid and \\/ or salts of the acid and \\/ or isomerengemischen, t - acidand \\/ or their salts contain alkalihydroxidl\ösung at elevated pressure and elevatedtemperature and precipitation of the h - acid - monoalkalisal pa by acidification.with theimplementation in the presence of alcohols and \\/ or alkohoiaten and, in the presence ofsubstances which the at least one of a nitrogen atom of oxygen is included.
申请人：BAYER AG
地址：51368 Leverkusen DE
国籍：DE
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