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2002•Journal of Sichuan UniversityRequires access

Study on synthesis of ethyl lactate utilizing SO_4~(2-)/ZrO_2-TiO_2 as catalyst

Jing Gao

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Abstract

The ethyl lactate was synthesized starting from lactic acid and ethanol over a solid superacid SO 4 2- /ZrO 2-TiO 2 catalyst. SO 4 2- /ZrO 2-TiO 2 was synthesized by adding ZrO 2∶ TiO 2=1∶1 (molar ratio) to 1.5?mol·L -1 H 2SO 4 , immersing 24 hours, baking 1 hour at 600?℃. The molar ratio of ethanol to lactic acid was 1.5∶1 , reaction time was 11 hours , weight of catalyst was 2.0% of lactic acid mass. The yield of ethyl lactate reached up to 46.76%.

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What this paper is about

The ethyl lactate was synthesized starting from lactic acid and ethanol over a solid superacid SO 4 2- /ZrO 2-TiO 2 catalyst. SO 4 2- /ZrO 2-TiO 2 was synthesized by adding ZrO 2∶ TiO 2=1∶1 (molar ratio) to 1.5?mol·L -1 H 2SO 4 , immersing 24 hours, baking 1 hour at 600?℃. The molar ratio of ethanol to lactic acid was 1.5∶1 , reaction time was 11 hours , weight of catalyst was 2.0% of lactic acid mass. The yield of ethyl lactate reached up to 46.76%.

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Available abstract

The ethyl lactate was synthesized starting from lactic acid and ethanol over a solid superacid SO 4 2- /ZrO 2-TiO 2 catalyst. SO 4 2- /ZrO 2-TiO 2 was synthesized by adding ZrO 2∶ TiO 2=1∶1 (molar ratio) to 1.5?mol·L -1 H 2SO 4 , immersing 24 hours, baking 1 hour at 600?℃. The molar ratio of ethanol to lactic acid was 1.5∶1 , reaction time was 11 hours , weight of catalyst was 2.0% of lactic acid mass. The yield of ethyl lactate reached up to 46.76%.

Key concepts: Superacid, Catalysis, Lactic acid, Ethyl lactate, Molar ratio, Yield (engineering), Ethanol, Chemistry

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