Vol.5 No.1 (February 2015)
Determination of Composition in Spent Resins from the Aniline Process Adopted to the Synthesis 2-Mercaptobenzothiazole by Gas Chromatography-Mass Spectrometry
The relative content and constituents of spent resins from the aniline process adopted to the syn-thesis 2-mercaptobenzothiazole (the Accelerator M) were analyzed by gas chromatography-mass spectrometry (GC-MS). After being dissolved in tetrahydrofuran, spent resins were measured by GC-MS and identified by NIST08. The relative content of each component was determined by area normalization. Total 7 constituents were identified in spent resins, wherein the relative contents of 2-mercaptobenzothiazole (M) and benzothiazole (BT) were the highest, accounting for 29.2% and 31.1% respectively. The contents of aniline, 2,6-Di-tert-butyl-4-methylphenol and benzothiazole derivative were 6.2%, 17.4% and 14.2%, taking 98.1% of the total peak area.
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