A kind of method of dicyclopentadiene decolorization
A dicyclopentadiene, removal technology, applied in chemical instruments and methods, organic chemistry, hydrocarbons, etc., can solve problems such as greenish color, product chroma not up to standard, affecting downstream product production, etc., to achieve no waste water Emissions, the effect of simple process
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Embodiment 1~10
[0019] 1. Return materials
[0020] The returned material used in Examples 1-10 comes from a part of the material produced by the C5 separation device during the production of isoprene. The composition of the returned material is shown in Table 1.
[0021] Table 1.
[0022] components return material(1) Return material (2) Total C4,% 0.00 0.04 3-Methylbutene-1,% 0.01 0.00 1.4-Pentadiene,% 0.07 0.00 Butyne-2,% 1.17 0.02 Prenyne,% 0.00 1.91 2-Methylbutene-1,% 0.02 0.00 Isoprene,% 98.23 97.15 2-Methylbutene-2,% 0.00 0.05 Cyclopentadiene,% 0.00 0.26 Cyclopentene,% 0.00 0.48 Other C5,% 0.00 0.08 Dimethylamine,% 0.5 0.01 pH 11 9
[0023] 2. Return material removes dimethylamine
[0024] The return material is as in figure 1 The removal of dimethylamine takes place in the water wash column shown. The size of the washing tower is 100 grams of spherical sulfonic acid-based...
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