Preparation method of 1,5-naphthalene diisocyanate
The invention relates to a preparation method of 1,5-naphthalene diisocyanate. The preparation method comprises the steps that a catalyst polyoxometallate and a solvent are added into a reaction container; then raw materials including 1,5-diaminonaphthalene, phenylsilane, an acid-binding agent and a...
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| creator | DAN DEMIN HAN SHENG WU ZHIKANG YU HAN WEI YONGGE |
| description | The invention relates to a preparation method of 1,5-naphthalene diisocyanate. The preparation method comprises the steps that a catalyst polyoxometallate and a solvent are added into a reaction container; then raw materials including 1,5-diaminonaphthalene, phenylsilane, an acid-binding agent and a dehydrating agent are added, and the materials are evenly mixed; finally, gaseous carbon dioxide isadded, the materials are stirred magnetically at a certain temperature for sufficient reaction, and the product is obtained. According to the method, an M-Anderson type heteropoly acid serves as a catalyst, the catalyst is mild in required reaction condition, high in specific selectivity, capable of being recycled and environmentally friendly, the cleanness of industrial reaction is improved, theeconomical efficiency of the technology is improved, the manufacturing cost and generation of three wastes are reduced, the environment-friendly pressure is reduced, and industrial production is facilitated.
本发明涉及一种1,5-萘二异氰酸酯 |
| format | Patent |
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本发明涉及一种1,5-萘二异氰酸酯</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Preparation method of 1,5-naphthalene diisocyanate |
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