Sulfuric acid functional zirconium (or aluminum) incorporated mesoporous MCM-48 solid acid catalysts for alkylation of phenol with tert-butyl alcohol

2014 ◽  
Vol 218 ◽  
pp. 71-80 ◽  
Author(s):  
Tingshun Jiang ◽  
Jinlian Cheng ◽  
Wangping Liu ◽  
Lie Fu ◽  
Xuping Zhou ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Solid Acid ◽  
Butyl Alcohol ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Tert Butyl ◽  
Tert Butyl Alcohol

Conversion of Biodiesel By-Product Glycerol to Fuel Ethers over Different Solid Acid Catalysts

2010 ◽  
Vol 8 (1) ◽  
Author(s):  
Nalan Ozbay ◽  
Nuray Oktar ◽  
Gulsen Dogu ◽  
Timur Dogu
Keyword(s):  
Solid Acid ◽  
Flow Reactor ◽  
Butyl Alcohol ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Transportation Fuel ◽  
Glycerol Conversion ◽  
Amberlyst 15 ◽  
Continuous Flow Reactor ◽  
Tert Butyl Alcohol

In this study, the etherification reaction of glycerol (G) with tert-butyl alcohol (TBA) was investigated for the production of high quality transportation fuel additives. The reaction was carried out in liquid phase, in a continuous flow reactor in the presence of various solid acid catalysts. Activities of acidic resin catalysts, such as Amberlyst-15 (A-15), Amberlyst-16 (A-16) and Amberlyst-35 (A-35), Nafion-SAC-13 and ?-alumina were compared. Significant increase in conversion was observed with an increase in temperature. Amberlyst 15 showed the highest activity at about 110°C, giving glycerol conversion values of about 0.5 at a space time of 18 g cm-3 s. However, A-16 gave higher di-ether selectivity values. Nafion-SAC-13 showed activity at higher temperatures, while the activity of ?-alumina was very low, even at 400°C.

scholarly journals Catalytic production of oxygenated additives by glycerol etherification

2014 ◽  
Vol 12 (12) ◽  
pp. 1248-1254 ◽  
Author(s):  
Catia Cannilla ◽  
Giuseppe Bonura ◽  
Leone Frusteri ◽  
Francesco Frusteri
Keyword(s):  
Gas Phase ◽  
Solid Acid ◽  
Reaction Medium ◽  
Acid Sites ◽  
Butyl Alcohol ◽  
Solid Acid Catalysts ◽  
High Rate ◽  
Acid Catalysts ◽  
Oxygenated Additives ◽  
Tert Butyl Alcohol

AbstractIn this work the etherification reaction of glycerol with isobutene (IB) and tert-butyl alcohol (TBA) has been studied with the aim of preparing mixtures with high content of poly-substituted ethers. The results obtained using solid acid catalysts have shown that the reaction with IB proceeds at a high rate but the formation of undesired di-isobutene (DIB) represents a serious problem when catalysts with high density of acid sites, such as Amberlyst, are used. When using TBA as a reactant, the main problem is the formation of water that, due to thermodynamic reasons, prevents the formation of poly-substituted ethers regardless of the catalyst used. Some preliminary experiments carried out with a water permselective tubular membrane have demonstrated that the yield of poly-substituted ethers significantly increases once water was selectively removed from the reaction medium by recirculation of the gas phase.

scholarly journals tert-Butylation of 1-Naphthol with tert-Butyl Alcohol or tert-Butyl Chloride in the Presence of Sulfuric Acid or Zinc Chloride

1973 ◽  
Vol 31 (10) ◽  
pp. 831-834 ◽  
Author(s):  
Toshiyuki MIYATA ◽  
Takahiro HAMADA ◽  
Tsuneaki HIRASHIMA ◽  
Osamu MANABE ◽  
Hachiro HIYAMA
Keyword(s):  
Sulfuric Acid ◽  
Zinc Chloride ◽  
Butyl Alcohol ◽  
Butyl Chloride ◽  
Tert Butyl ◽  
Tert Butyl Alcohol ◽  
Tert Butyl Chloride

Alkylation of pyrocatechol in tert-butyl alcohol-sulfuric acid-benzene

2011 ◽  
Vol 47 (9) ◽  
pp. 1310-1312 ◽  
Author(s):  
V. B. Vol’eva ◽  
T. I. Prokof’eva ◽  
I. S. Belostotskaya ◽  
N. L. Komissarova ◽  
D. B. Gorbunov ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Butyl Alcohol ◽  
Tert Butyl ◽  
Tert Butyl Alcohol

Silica-Sulfuric Acid and Alumina-Sulfuric Acid – Versatile Supported Bronsted Acid Catalysts

2021 ◽  
Author(s):  
Amit Pramanik ◽  
Sanjay Bhar
Keyword(s):  
Sulfuric Acid ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Functionalized Silica ◽  
Bronsted Acid ◽  
Silica Sulfuric Acid ◽  
Brönsted Acid ◽  
Bronsted Acid Catalysts ◽  
Heterogeneous Solid

Abstract: The –SO3H functionalized silica and alumina have emerged as efficient and eco-compatible heterogeneous solid acid catalysts for the construction of various important molecular skeletons. The advantages of –SO3H functionalized...

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