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Chemical grade isoprene (IPE) is one of the main products of C5 petroleum resin separation device

author£ºadmin Date£º2016/12/19 17:48:04

Chemical grade isoprene (IPE) is one of the main products of C5 petroleum resin separation device. With the diversification of processing crude oil sources and the use of various chemical auxiliary materials in C5 separation, there are many unknown structures in C5 petroleum resin trace impurities, these impurities and their further reaction products resulting in IPE products often appear unqualified chroma phenomenon.

The composition of the residue was determined by inductively coupled plasma-atomic emission spectroscopy, qualitative trace impurities by chromatography /mass spectrometry, and determination of the size and distribution of the light green IPE solid particles. The main reason for the failure of the IPE product color was IPE incorporation of iron sulfide solid particles, these particles suspended in IPE, but not really dissolved in IPE, the solution is false solution. Slight greenish black solid particles are the result of the interaction of two or more of DMF, chemical reagents A, B, C, S2- and Fe2 + when C5 petroleum resin was isolated. The pale green of the IPE is due to the yellowish color of the bulk and the interaction of the green-black solid particles suspended in the IPE, whereas the light yellow IPE is caused by the ene-conjugated structure of the impurity. As the average diameter of solid particles are greater than 100¦Ìm, so only IPE filtration can clarify the filtrate color analysis value of 20 to 30, to achieve product quality requirements.