摘要
利用鄂东膨润土为基质材料,制备了蒙脱土固体酸,并用XRD、TG DSC和FT IR对固体酸进行了表征。试验表明膨润土中蒙脱土含量越高、固体酸的催化效果越好。采用蒙脱土含量为84%的膨润土,经质量分数为10%的H2SO4和0.05mol·L-1Fe2(SO4)3处理得到的固体酸,比表面积从30m2·g-1增加到198m2·g-1,说明膨润土经过硫酸处理后,形成了大孔洞的骨架结构。该固体酸200℃活化后,催化萘与丙烯的烷基化反应,当用量为萘质量的15%、180℃反应6h,萘的转化率高达99.2%。
By using the bentonite of east Hubei as catalyst supporters and taking the alkylation of pure naphthalene and proplylene produced in the industry of catalyst as judging basis, montmorillonite solid acid were prepared and characterized by the techniques such as XRD,TG-DSC and FT-IR. Experiments indicated that the more bentonite contained montmorillonite, the better the solid acid elaborated the catalytic ability. The solid acid catalysts were gained from the bentonite, which contained 84%(mass) montmorillonite and were disposed of by ω(H_2SO_4)=10% and c[Fe_(2)(SO_(4))_(3)=0.05 mol·L^(-1)]. The surface area increased from 30 m^(2)·g^(-1) to 198 m^(2)·g^(-1),which explained bentonite formed the framework fabric of large bores after being disposed of (H_(2)SO_(4)). Having been activated in 200^(o)C, the solid acid catalyzed the alkylation of naphthalene and proplylene. Its dosage was 15% of the mass of naphthalene,and the conversion of naphthalene was up to 99.2% after reacting 6 hours at 180℃.
出处
《化学与生物工程》
CAS
2005年第5期49-51,共3页
Chemistry & Bioengineering
