人造麝香DDHI模试研究

The Study on Pilot-scale Production of Musk DDHI

对２ ， ６ － 二异丙基苯酚与异戊二烯合成人造麝香ＤＤＨＩ 进行了放大试验研究。最佳条件为： Ｃ－ ２／ＤＩＰＰ＝ １－４ （ ｗ／ｗ） ； ＩＰ： ＤＩＰＰ＝ １－３ （ ｍｏｌ／ ｍｏｌ） ； 反应温度为９５ ℃； 滴加时间（３ ～２－５） 小时， 平均收率达８８－５ ％ ， 高于小试收率。生产中还应该考虑到初产品中的重组分含量来及时调整原料配比。发现ＤＤＨＩ的副产为新型抗氧剂， 可应用于ＰＰ 及ＳＢＳ 作抗氧化剂，废物的利用可降低ＤＤＨＩ 生产成本。

The technology of synthesizing hydroxyindan musk DDHI from 2,6-diisopropylphenol with isoprene is studied in the pilot-plant. The optimum synthetic conditions are defined as follow: C-2 cat./2,6-dissopropylphenol=1 4(w/w);isoprene/2,6-diisopropyphenol=1 3 (mol/mol);the reaction temperature is 95℃;the reaction time is about (3～2 5)h.The yield is 88 5%.It is much more than the small-scale experiment and any others.It is necessary to regulate the mass ratio of the raw materials according to the quantity of the heavy components.The new antioxidants HD are the by-products of DDHI, and they can be used as the thermal oxidation aging in PP or SBS processing.