Method for preparing high-quality DRCP
The invention discloses a method for preparing high-quality DRCP, which is characterized in that hexachlorocyclopentadiene and cyclooctadiene are insulated and react for 3-10h in a solvent under 140-180 DEG C, wherein the molar ratio of hexachlorocyclopentadiene to cyclooctadiene is 2.0-2.5:1; the s...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a method for preparing high-quality DRCP, which is characterized in that hexachlorocyclopentadiene and cyclooctadiene are insulated and react for 3-10h in a solvent under 140-180 DEG C, wherein the molar ratio of hexachlorocyclopentadiene to cyclooctadiene is 2.0-2.5:1; the solvent is single and is alkane or halohydrocarbon; and the mass of the solvent is 30-60% of the total mass of hexachlorocyclopentadiene and cyclooctadiene. The method is simple and practicable and easy for industrialization, and the single solvent is convenient for recycling the subsequent solvent,thus reducing the load of subsequent processing. The high-quality DRCP obtained by the method of the invention has chromaticity being more than 98 and yield up to 98.5%. |
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