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- W4210790472 abstract "Classification and determination of various oxygen containing groups in high pressure coal hydrogenolysis products was attempted. First the total OH group was trimethylsilylated and the silica in the produced trimethyl sikyl ether was determined by atomic absorption anakysis and at the sametime R-NH2 which undergoes silylation was measured and corrected. Next, using a different method the phenolic hydroxyl group was measured. Based on the above data, it became possible to divide the oxygen in the samples into ether type, phenolic hydroxyl type and alchohoholic hydroxyl type which were measured accordingly.Further the changes accompanying the course of hydrogenolysis of these oxygen containing structures were followed, and we arrived at the opinion that the phenolic hydroxyl group is produced by dissociation of ether type oxygen accompanying decrease the molecular weight arising from hydrogenolysis. Further, it was recognized that the hydroxyl group were removed along with the reaction course." @default.
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- W4210790472 date "1974-01-01" @default.
- W4210790472 modified "2023-10-18" @default.
- W4210790472 title "Analysis of the Chemical Structure of Coal by Means of Investigation on the high Pressure Hydrogenolysis Reaction Mechanism (IV)" @default.
- W4210790472 doi "https://doi.org/10.3775/jie.53.12_995" @default.
- W4210790472 hasPublicationYear "1974" @default.
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