从煤焦油中提取2,6-二甲基萘的机理研究

STUDY ON MECHANISM OF EXTRACTION OF 2,6-DIMETHYL NAPHTHALENE FROM COAL TAR

利用红外光谱、Ｘ射线衍射光谱、高效液相色谱、显微镜等手段，对用间硝基苯甲酸（ｍ－ＮＢＡ）法从煤焦油中提取２，６－二甲基萘（２，６－ＤＭＮ）的机理进行了研究．研究发现，２，６－ＤＭＮ是由于能同时受到两个ｍ－ＮＢＡ的诱导作用，而与ｍ－ＮＢＡ形成固熔体，从而与其它二甲基萘分离，并不是生成了配位化合物．

By means of infrared spectrum, X-ray diffraction spectrum, liquid chromatograph and microscope, reaction mechanism of extraction of 2,6-dimethylnaphthalene(2,6-DMN) from coal tar using m-nitrobenzoic acid(m-NBA) was studied. It is shown that 2,6-DMN was introduced by 2 m-NBA to form solid melt other than complex with m-NBA, which makes it separate from other dimethylnaphthalenes.