scholarly journals Carboxylation of Isobutene with Carbon Monoxide and Water in the Presence of Sulfuric Acid Catalyst

1969 ◽  
Vol 48 (5) ◽  
pp. 286-294
Author(s):  
Mutsuya Matsubara ◽  
Makoto Sasaki ◽  
Kazuo Aomura ◽  
Hiroshi Ohtsuka
Keyword(s):  
Carbon Monoxide ◽  
Sulfuric Acid ◽  
Acid Catalyst ◽  
Sulfuric Acid Catalyst

scholarly journals The paper-forming properties of hemp fire peroxide cellulose in combination with wood sulphate cellulose

2021 ◽  
Vol 2094 (5) ◽  
pp. 052043
Author(s):  
R A Marchenko ◽  
R Z Pen ◽  
I L Shapiro ◽  
Y A Ambrosovich
Keyword(s):  
Hydrogen Peroxide ◽  
Sulfuric Acid ◽  
Cannabis Sativa ◽  
Sulfuric Acid Concentration ◽  
Acid Catalyst ◽  
Strength Properties ◽  
Mixed Composition ◽  
Deciduous Wood ◽  
Sulfuric Acid Catalyst ◽  
Hardwood Pulp

Abstract Hemp fire (Cannabis sativa) was delignified with the reaction mix “acetic acid - hydrogen peroxide - sulfuric acid catalyst - water” under sulfuric acid concentration of 0.45%, liquid module of 6, and temperature of 85 ° C. The cellulose was ground to 34 … 36°SHR and mixed in different ratios in compliance with the simplex-centroid experimental design with bleached sulfate softwood and hardwood pulp. The influence of the mixed composition formulations on the main strength properties of paper castings has been studied. It has been concluded that technical cellulose obtained from hemp fire applying this method, can be used for paper products manufacturing in combination with sulphate cellulose from coniferous and deciduous wood.

scholarly journals The Influence of Sulfuric Acid Catalyst Concentration on Hydrolysis of Birch Wood Hemicelluloses

2015 ◽  
Vol 8 (2) ◽  
pp. 211-221 ◽  
Author(s):  
Olga V. Yatsenkova ◽  
◽  
Anna I. Chudina ◽  
Nikolay V. Chesnokov ◽  
Andrey M. Skripnikov ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Catalyst Concentration ◽  
Acid Catalyst ◽  
Birch Wood ◽  
Sulfuric Acid Catalyst ◽  
Hydrolysis Of
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