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Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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Filing date
Publication date
Application filed by Sumitomo Chemical Co LtdfiledCriticalSumitomo Chemical Co Ltd
Priority to JP4100975ApriorityCriticalpatent/JPS51115455A/en
Priority to US05/625,475prioritypatent/US4045454A/en
Priority to GB4391375Aprioritypatent/GB1497911A/en
Publication of JPS51115455ApublicationCriticalpatent/JPS51115455A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
PURPOSE: 1-Nitroanthraquinone, an important intermediates of anthraquinone dyes, is purified by first griding and then treating with aqueous sulfurous alkali solution in the presence of surfactant.
COPYRIGHT: (C)1976,JPO&Japio
JP4100975A1974-10-251975-04-03Process for preparation of high purity 1-nitro anthraguinone
PendingJPS51115455A
(en)