HIGHLY EFFICIENT SEPARATIVE REFINING OF USEFUL COMPOUNDS IN COAL TAR

煤焦油中有用化合物的高效分离精炼

基本信息

批准号：
03555173
负责人：
MOCHIDA Isao
金额：
$ 8.9万
依托单位：
KYUSHU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1993
项目状态：
已结题

项目摘要

Useful compounds such as polyaromatic hydrocarbons (naphthalene, methylnaphthalenes, anthracene, pyrene, fluoranthene and so on) and hetercoyclic compounds (quinoline, isoquinoline, acridine, benzothiophene and so on) were separated from coal tar fractions by combining solvent extraction and adsorption techniques using supported metal sulfates and a series of extraction solvents such as hexane, benzene, methanol and supercritical CO^2.Main research results are as follows ;1) Crude methylnaphthalene oil (CMNO) was effectively denitrogenated by adsorptive separation with 10 wt% Al^2(SO^4)^3 supported on silica gel of high surface area(Al/Si) and fractional extraction wiht hexane and benzene. Nitrogen compounds of quinoline and isoquinoline were concentrated and recovered in the benzene-eluted fraction at the same time.2) The same techniques as described above were applied to the selective separation of acridine from crude anthracene oil, providing an important starting material for preparing 1,2,3,4-tetrahydro-9-aminoacridine of expected remedy for Altzheimer-like senile dementia.3) CMNO was more selectively and effectively denitrogenated by using the Al/Si adsorbent under supercritical CO^2 extraction conditions of 50ﾟC and 70 atm than the conventional extraction methods. Nitrogen compounds of quinoline and isoquinoline were more easily and efficiently recovered by higher pressure supercritical CO^2 and methanol washing.4) Benzothiophene (BT) was more selectively dimerized over tha Al/Si catalyst under supercritical CO^2 conditions of 100ﾟC and 70 atm than its catalytic reaction in atmospheric n-octane solutions. The dimer of BT can be separated from crude naphthalene fraction under the supercritical CO^2 conditions followed by selective dedimerization and etraction.

有用的化合物，例如多氨基碳氢化合物（萘，甲基甲苯，蒽，吡啶，氟苯，氟烷等）和杂铝化合物，以及使用煤炭液体互动的固定型和固定溶液，并脱离了硫酸溶液，并通过煤炭液体脱离了煤炭液体（quinoline，isoquinoline，insoquinoline，Isopoinoline，actridine）。一系列的提取溶液，例如己烷，苯，甲基和超临界区。研究结果如下：1）通过用10 wt％al^2（so^2（so^4）^3支持高表面积和高表面上的Sirica（Al/si），通过吸附分离有效地分离出粗甲基二硫酸盐（CMNO）（CMNO）（CMNO）。 Nitrogen compounds of quinoline and isoquinoline were concentrated and recovered in the benzene-eluted fraction at the same time.2) The same techniques as described above were applied to the selective separation of acridine from crude anthracene oil, providing an important starting material for preparing 1,2,3,4-tetrahydro-9-aminoacridine of expected remedy for Altzheimer-like senile 3）CMNO通过在超临界CO^2萃取条件下使用Al/si吸附剂（比常规提取方法）更有效，有效地诺言。喹啉和等喹啉的氮化合物通过高压超临界Co^2和甲醇洗涤更容易，有效地恢复。4）苯并噻吩（BT）在超临界Co^2的100 co^2条件下，在100 c和70 at ATM的超临界条件下，苯甲酸苯甲酸酯（BT）更具选择性地降低了其抗大气中的N-at-cotine n-aimpereric n-otimpereric n-octeric n-octine n-octine n-octine n-octine n-octine n-octeric n-octine。 BT的二聚体可以在超临界二线条件下与粗萘馏分分开，然后选择性地介导和eTraction。