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苯并三氮唑(BTA)是重要的精细化工 产品,它由邻苯二胺经重氮化.在乙酸中环合制得。随着我国工业的不断发展,开发BTA有着广阔的应用前景,其原因如下: 1.BTA用途广泛,主要用作金属材料的气相缓蚀剂、合成染料的中间体、植物生长调节剂、涂料工业添加剂、紫外线吸收剂、高分子材料稳定剂、照相工业防霉剂等; 2.我国现有生产厂家太少,试剂级产品太多,工业品少,难以满足国内需求,进口价格为每吨1500～2000美元;
Benzotriazole (BTA) is an important fine chemical product. It is diazotized from o-phenylenediamine and cyclized in acetic acid. With the continuous development of China’s industry, the development of BTA has a broad application prospects, the reasons are as follows: 1. BTA is widely used, mainly used as a vapor phase inhibitor of metal materials, intermediates for synthetic dyes, plant growth regulators, paint industry Additives, UV absorbers, polymer stabilizers, photographic industry mold inhibitors, etc.; 2. There are too few existing manufacturers in China, there are too many reagent grade products, industrial products are few, it is difficult to meet domestic demand, the import price is 1,500 per ton. ~2000 U.S. dollars;