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以粉体SiO2、颗粒SiO2、粉体Al2O3、颗粒Al2O3、MCM-41担载的0.1%Rh(以质量分数表示,下同)催化剂对双环戊二烯(DCPD)氢甲酰化合成三环癸烷不饱和单醛(MFTD)进行了对比研究,其中颗粒SiO2和粉体Al2O3具有最短的诱导期,仅有3min;以粉体SiO2和粉体Al2O3担载的0.1%Rh为催化剂,可取得高达98.5%三环癸烷不饱和单醛的选择性;因此,较合适的高效合成三环癸烷不饱和单醛的载体为粉体二氧化硅和粉体氧化铝。以粉体SiO2、颗粒SiO2、粉体Al2O3、颗粒Al2O3、MCM-41担载的2%Rh催化剂对双环戊二烯氢甲酰化合成三环癸烷二甲醛(DFTD)进行了对比研究,双环戊二烯的转化率都达到了100%,其中以粉体SiO2和粉体Al2O3担载的2%Rh为催化剂,三环癸烷二甲醛的选择性达到了70%以上;在2h的反应时间内,所有的催化剂催化合成三环癸烷二甲醛的反应进行的都比较快,但是仅有粉体SiO2担载的2%Rh催化剂在后续的反应时间里,展示了相对强劲的催化活性,在12h的反应时间里,三环癸烷二甲醛的选择性可以达到91%,因此,较合适的高效合成三环癸烷二甲醛的载体为粉体SiO2。
Hydrogenation of dicyclopentadiene (DCPD) to tricyclodecane (DCPD) was carried out using 0.1% Rh (mass fraction) catalyst supported on SiO2, SiO2, Al2O3, Al2O3 and MCM-41 Alkane unsaturated monoester (MFTD) were studied. The results showed that the particles SiO2 and Al2O3 had the shortest induction period of only 3 min. With 0.1% Rh supported by SiO2 and Al2O3 as catalyst, 98.5% tricyclodecane unsaturated monoaldehydes selectivity; therefore, more suitable high-performance synthetic tricyclodecane unsaturated monoaldehydes carrier powder silica and powder alumina. The synthesis of tricyclodecane dicarboxaldehyde (DFTD) by hydroformylation of dicyclopentadiene with 2% Rh supported on SiO2, SiO2, Al2O3, Al2O3 and MCM-41 was studied. The conversion of pentadiene reached 100%. Among them, the selectivity of tricyclodecane dicarboxaldehyde reached 70% with 2% Rh supported by powder SiO2 and Al2O3 as the catalyst, and the reaction time of 2h , All of the catalysts catalyzed the synthesis of tricyclodecane-2-dicarboxaldehyde. However, only the 2% Rh supported by powder SiO2 exhibited relatively strong catalytic activity in the subsequent reaction time, 12h reaction time, the selectivity of tricyclodecanedicarboxaldehyde can reach 91%, therefore, more suitable carrier for efficient synthesis tricyclodecane dicarboxaldehyde is powder SiO2.