Catalytic dehydration of lactic acid to acrylic acid using calcium hydroxyapatite catalysts

2013 ◽  
Vol 15 (5) ◽  
pp. 1211 ◽  
Author(s):  
Vidhya C. Ghantani ◽  
Samadhan T. Lomate ◽  
Mohan K. Dongare ◽  
Shubhangi B. Umbarkar
Keyword(s):  
Lactic Acid ◽  
Acrylic Acid ◽  
Calcium Hydroxyapatite

scholarly journals Lactic Acid Conversion to Acrylic Acid Over Fluoride-Substituted Hydroxyapatites

2020 ◽  
Vol 8 ◽  
Author(s):  
Robert Wojcieszak ◽  
Thomas Bonnotte ◽  
Sébastien Paul ◽  
Benjamin Katryniok ◽  
Franck Dumeignil
Keyword(s):  
Lactic Acid ◽  
Acrylic Acid

scholarly journals Process Designs for Converting Propylene Glycol to Acrylic Acid via Lactic Acid and Allyl Alcohol

2019 ◽  
Vol 59 (3) ◽  
pp. 1183-1192
Author(s):  
M. M. Buitelaar ◽  
E. van Daatselaar ◽  
D. G. van Teijlingen ◽  
H. I. Stokvis ◽  
J. D. Wendt ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Acrylic Acid ◽  
Propylene Glycol ◽  
Allyl Alcohol

Selective conversion of lactic acid to acrylic acid over alkali and alkaline-earth metal co-modified NaY zeolites

2017 ◽  
Vol 7 (24) ◽  
pp. 6101-6111 ◽  
Author(s):  
Lili Zhang ◽  
De Sheng Theng ◽  
Yonghua Du ◽  
Shibo Xi ◽  
Lin Huang ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Acrylic Acid ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Environmentally Friendly ◽  
Catalytic Process ◽  
Alkaline Earth Metal ◽  
Selective Conversion ◽  
Nay Zeolites

A high AA selectivity of 84% was achieved through an environmentally friendly and sustainable catalytic process.

Na2HPO4-modified NaY nanocrystallites: efficient catalyst for acrylic acid production through lactic acid dehydration

2014 ◽  
Vol 4 (5) ◽  
pp. 1376-1385 ◽  
Author(s):  
Junfeng Zhang ◽  
Yuling Zhao ◽  
Xinzhen Feng ◽  
Min Pan ◽  
Jing Zhao ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Acrylic Acid ◽  
Acid Production ◽  
Surface Acidity ◽  
Formation Rate ◽  
Structural Features ◽  
Efficient Catalyst ◽  
Acid Yield

An acrylic acid yield of 74.3% and a formation rate of 12.0 mmol gcat−1 h−1 have been achieved at 340 °C by lactic acid dehydration over Na2HPO4-modified NaY nanocrystallites (NaY-n) due to appropriate surface acidity together with the unique structural features of NaY-n.

Dehydration of lactic acid to acrylic acid over lanthanum phosphate catalysts: the role of Lewis acid sites

2016 ◽  
Vol 18 (34) ◽  
pp. 23746-23754 ◽  
Author(s):  
Zhen Guo ◽  
De Sheng Theng ◽  
Karen Yuanting Tang ◽  
Lili Zhang ◽  
Lin Huang ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Acrylic Acid ◽  
Lewis Acid ◽  
Acid Sites ◽  
Lewis Acid Sites ◽  
Lanthanum Phosphate ◽  
Lewis Acidic Sites ◽  
Acidic Sites ◽  
Nano Rods

Lewis acidic sites on the surface of lanthanum phosphate nano-rods play a crucial role on the catalytic dehydration of lactic acid to acrylic acid.

Barium sulphate catalyzed dehydration of lactic acid to acrylic acid

2014 ◽  
Vol 16 (1) ◽  
pp. 108-111 ◽  
Author(s):  
Jiansheng Peng ◽  
Xinli Li ◽  
Congming Tang ◽  
Wei Bai
Keyword(s):  
Lactic Acid ◽  
Acrylic Acid ◽  
Barium Sulphate

Influence of Adding KH2PO4 on WO3/γ-Al2O3 Solid Acid Catalyst for the Synthesis of Acrylic Acid from Lactic Acid

2014 ◽  
Vol 912-914 ◽  
pp. 178-181
Author(s):  
Chang Yuan Wang ◽  
Gui Ying Liu ◽  
Chang Hai Du
Keyword(s):  
Lactic Acid ◽  
Acrylic Acid ◽  
Calcination Temperature ◽  
Acid Concentration ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Lactic Acid Concentration ◽  
Preparation Conditions ◽  
Acid Reaction

KH2PO4-WO3/γ-Al2O3 solid acid catalyst was prepared by the method of impregnation. According to the lactic acid dehydration production of acrylic acid reaction, some parameters including the load of WO3 on γ-Al2O3, the calcination temperature, the reaction temperature and lactic acid concentration were investigated. The results show that the conversion of lactic acid was 92%, and the selectivity of acrylic acid was 29% under the optimized preparation conditions.

scholarly journals Catalytic acetoxylation of lactic acid to 2-acetoxypropionic acid, en route to acrylic acid

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4103-4108 ◽  
Author(s):  
Rolf Beerthuis ◽  
Marta Granollers ◽  
D. Robert Brown ◽  
Horacio J. Salavagione ◽  
Gadi Rothenberg ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Heterogeneous Catalysis ◽  
Acrylic Acid ◽  
Synthetic Route ◽  
Platform Chemical

We present an alternative synthetic route to acrylic acid, starting from the platform chemical lactic acid and using heterogeneous catalysis.

Superabsorbent biphasic system based on poly(lactic acid) and poly(acrylic acid)

2016 ◽  
Author(s):  
Luciana Sartore ◽  
Stefano Pandini ◽  
Francesco Baldi ◽  
Fabio Bignotti
Keyword(s):  
Lactic Acid ◽  
Acrylic Acid ◽  
Biphasic System ◽  
Poly Lactic Acid ◽  
Poly Acrylic Acid
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