CAJ | 학술논문

研究了单种溶剂、混合溶剂对3,4-苯并芘的溶解选择性及煤沥青溶解量。并以顺丁烯二酸酐为改性剂、硫酸为催化剂，考察了溶剂效应对降低煤沥青中3,4-苯并芘的影响。研究表明，环己烷、甲苯，环己烷、乙酸丁酯组成的混合溶剂具有较好的3,4-苯并芘溶解选择性和合适的煤沥青溶解量。当环己烷∶甲苯=2∶1（体积比）和环己烷∶乙酸丁酯=2∶1（体积比）为反应溶剂时，能够高效地脱除煤沥青中3,4-苯并芘，煤沥青中3,4-苯并芘降低率分别达到88.26%和90.83%。其原因认为是此类溶剂能使包裹在沥青颗粒内部的3,4-苯并芘释放出来，且3,4-苯并芘与改性剂能够形成均相反应体系，大部分不具有致癌性的高相对分子质量环芳烃与改性剂之间形成两相体系，从而提高了改性剂与3,4-苯并芘的有效反应。
연구료단충용제、혼합용제대3,4-분병비적용해선택성급매력청용해량。병이순정희이산항위개성제、류산위최화제，고찰료용제효응대강저매력청중3,4-분병비적영향。연구표명，배기완、갑분，배기완、을산정지조성적혼합용제구유교호적3,4-분병비용해선택성화합괄적매력청용해량。당배기완∶갑분=2∶1（체적비）화배기완∶을산정지=2∶1（체적비）위반응용제시，능구고효지탈제매력청중3,4-분병비，매력청중3,4-분병비강저솔분별체도88.26%화90.83%。기원인인위시차류용제능사포과재력청과립내부적3,4-분병비석방출래，차3,4-분병비여개성제능구형성균상반응체계，대부분불구유치암성적고상대분자질량배방경여개성제지간형성량상체계，종이제고료개성제여3,4-분병비적유효반응。
The solubility selectivity for benzo[a]pyrene and dissolved amount for coal tar pitch of single solvent,mixed solvents were studied. Using maleic anhydride as modifying agent and sulfuric acid as catalyst,the solvent effect on reducing the concentration of benzo[a]pyrene in coal tar pitch was investigated. The mixed solvents,cyclohexane and toluene,cyclohexane and butyl acetate had appropriate benzo[a]pyrene solubility selectivity and coal tar pitch solubility. When using cyclohexane∶toluene=2∶1(v/v),cyclohexane∶butyl acetate=2∶1(v/v)as reaction solvent, benzo[a]pyrene in coal tar pitch could be removed efficiently,with decreases of 88.26%and 90.83%for benzo[a]pyrene in coal tar pitch respectively. Using these kinds of solvent,benzo[a]pyrene wrapped in coal tar pitch could be released. In addition,a homogeneous system between modifying agent and benzo[a]pyrene was formed,with most non-carcinogenic high molecular weight PAHs and modifying agent forming a two phase system. As a result,the effective reaction between modifying agent and benzo[a]pyrene was greatly improved.