Kinetics of Furfural Production from Corn Cob in γ-Valerolactone Using Dilute Sulfuric Acid as Catalyst

2017 ◽  
Vol 5 (10) ◽  
pp. 8587-8593 ◽  
Author(s):  
Xiaoyun Li ◽  
Qingling Liu ◽  
Chunhui Luo ◽  
Xiaochao Gu ◽  
Lefu Lu ◽  
...  
2019 ◽  
Vol 57 (6) ◽  
pp. 753-757 ◽  
Author(s):  
Nguyen Hoang Chung ◽  
Nguyen Thi Minh Phuong ◽  
Le Quang Dien ◽  
Nguyen Viet Khanh ◽  
Nguyen Thi Hue

2007 ◽  
Vol 46 (7) ◽  
pp. 1938-1944 ◽  
Author(s):  
Eliana V. Canettieri ◽  
George J. M. Rocha ◽  
João A. Carvalho, ◽  
João B. A. Silva

1971 ◽  
Vol 49 (21) ◽  
pp. 3489-3492 ◽  
Author(s):  
J. T. Edward ◽  
P. H. Tremaine

The kinetics of the transformation of benzonitrile oxide in dilute sulfuric acid into benzohydroxamic acid have been followed by u.v. spectrophotometry at a temperature near room temperature. A mechanism is proposed on the basis of the effects of substituents and sulfuric acid concentration.The rate profile for the hydrolysis of benzohydroxamic acid in hot dilute sulfuric acid has been obtained.The results of these studies are applied to the detailed mechanism of the Meyer rearrangement – hydrolysis of phenylnitromethane in acid.


2016 ◽  
Vol 313 ◽  
pp. 9-17 ◽  
Author(s):  
V. Madakkaruppan ◽  
Anitha Pius ◽  
Sreenivas T. ◽  
Nitai Giri ◽  
Chanchal Sarbajna

2014 ◽  
Vol 997 ◽  
pp. 651-654 ◽  
Author(s):  
Biao Wu ◽  
He Shang ◽  
Wen Cheng Gao ◽  
Jian Kang Wen

A new improved method is proposed for the leaching and extraction of niobium from a low-grade refractory niobium–tantalum ore.The ore was roasted and decomposed with concenrated H2SO4 then leached with dilute sulfuric acid. The effects of various factors, such as roasting temperature and time, acid to ore mass ratios,as well as particle size, on the dissolution kinetics of niobium were comprehensively investigated. The optimal conditions were particle size-38μm, roasting temperature 300°C,reacting time 2h and acid to ore mass ratio 1:1. The roasting residue reacted for 2 h with sulfuric acid in the ore/acid weight ratio of 3:1 at 90°C, the niobium was recoveried as high as 90.3%.


2007 ◽  
Vol 40 (9) ◽  
pp. 786-791 ◽  
Author(s):  
Kai Huang ◽  
Kedar Nath Ghimire ◽  
Katsutoshi Inoue ◽  
Keisuke Ohto ◽  
Hidetaka Kawakita ◽  
...  

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