Water-soluble poly:aromatic acids prepn. for prodn. of carbon@ adsorbents - by converting mesophase pitch into swellable prod. with complexing agent, followed by washing and treating with oxidising agent

In prodn. of low-impurity tar acids with a high COOH gp. content (I), by oxidn. of carbonaceous materials with a high aromatic hydrocarbon content (II); (II) is first converted into a swelling prod. (III) with a complexing agent (IV), then (IV) and the impurities are washed out with water, (III) is...

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1. Verfasser:	PREISS, HENRY., O-1190 BERLIN, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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