商丘师范学院学报
商丘師範學院學報
상구사범학원학보
JOURNAL OF SHANGQIU TEACHERS COLLEGE
2013年
9期
69-72
,共4页
杨水金%冼美杏%方盼%喻莉
楊水金%冼美杏%方盼%喻莉
양수금%승미행%방반%유리
丁醛1, 2-丙二醇缩醛%H3PW12O40%SiO2%催化
丁醛1, 2-丙二醇縮醛%H3PW12O40%SiO2%催化
정철1, 2-병이순축철%H3PW12O40%SiO2%최화
butyraldehyde 1,2-propanediol acetal%H3PW12O40%SiO2%catalysis
以H3 PW12 O40/SiO2为催化剂，丁醛和1，2-丙二醇为原料合成了丁醛1，2-丙二醇缩醛，探讨H3 PW12 O40/SiO2对缩醛反应的催化活性，用正交实验法研究了反应物料配比、催化剂用量、带水剂用量、反应时间等因素对反应的影响．结果表明，在n（丁醛）∶n（1，2-丙二醇）＝1∶1．4，催化剂用量占反应物料总质量的1．0％，带水剂环己烷的用量为6 mL，反应时间为60 min的优化条件下，产品收率可达87．9％．
以H3 PW12 O40/SiO2為催化劑，丁醛和1，2-丙二醇為原料閤成瞭丁醛1，2-丙二醇縮醛，探討H3 PW12 O40/SiO2對縮醛反應的催化活性，用正交實驗法研究瞭反應物料配比、催化劑用量、帶水劑用量、反應時間等因素對反應的影響．結果錶明，在n（丁醛）∶n（1，2-丙二醇）＝1∶1．4，催化劑用量佔反應物料總質量的1．0％，帶水劑環己烷的用量為6 mL，反應時間為60 min的優化條件下，產品收率可達87．9％．
이H3 PW12 O40/SiO2위최화제，정철화1，2-병이순위원료합성료정철1，2-병이순축철，탐토H3 PW12 O40/SiO2대축철반응적최화활성，용정교실험법연구료반응물료배비、최화제용량、대수제용량、반응시간등인소대반응적영향．결과표명，재n（정철）∶n（1，2-병이순）＝1∶1．4，최화제용량점반응물료총질량적1．0％，대수제배기완적용량위6 mL，반응시간위60 min적우화조건하，산품수솔가체87．9％．
Butyraldehyde 1,2-propanediol acetal was synthesized from butyraldehyde and 1,2-propanediol in the presence of H3 PW12 O40/SiO2 .The factors influencing the synthesis were discussed and the best conditions were found out.The optimum conditions are:molar ratio of butyraldehyde to 1,2-propanediol is 1∶1.4, the quantiy of catalyst is equal to 1.0%of feed stocks, the volume of cyclohexane as the water -carrying agent is 6 mL, and the reaction time is 60 min.H3 PW12 O40/SiO2 is an excellent catalyst for synthesizing butyraldehyde 1,2-propanediol acetal and its yield can be up to 87 .9%.
