scholarly journals PREPARATION AND CHARACTERIZATION OF CALCIUM HYDROXYAPATITE FROM FORCED HYDROLYSIS OF Ca(OH)2-TRIPHOSPHATE-HCl MIXED SOLUTION

2013 ◽  
Vol 28 (0) ◽  
pp. 37-44 ◽  
Author(s):  
Kazuhiko Kandori ◽  
Naoko Matsui
Keyword(s):  
Calcium Hydroxyapatite ◽  
Mixed Solution ◽  
Forced Hydrolysis ◽  
Hydrolysis Of

Characterization of nanoprecipitates formed from the forced hydrolysis of bioleach liquors under different pH conditions

2014 ◽  
Vol 20 (5) ◽  
pp. 3578-3583 ◽  
Author(s):  
Sehliselo Ndlovu ◽  
Geoffrey S. Simate ◽  
Kudzai A. Mchibwa ◽  
Alejandra Giaveno
Keyword(s):  
Forced Hydrolysis ◽  
Ph Conditions ◽  
Hydrolysis Of

Synthesis and characterization of iron oxide pigments through the method of the forced hydrolysis of inorganic salts

2015 ◽  
Vol 120 ◽  
pp. 271-278 ◽  
Author(s):  
Marcelo Müller ◽  
Juan Carlo Villalba ◽  
Filipe Quadros Mariani ◽  
Mariane Dalpasquale ◽  
Milena Zvolinski Lemos ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Synthesis And Characterization ◽  
Inorganic Salts ◽  
Forced Hydrolysis ◽  
Hydrolysis Of ◽  
Iron Oxide Pigments

scholarly journals Pretreatment of Switchgrass for Production of Glucose via Sulfonic Acid-Impregnated Activated Carbon

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 504
Author(s):  
Yane Ansanay ◽  
Praveen Kolar ◽  
Ratna Sharma-Shivappa ◽  
Jay Cheng ◽  
Consuelo Arellano
Keyword(s):  
Activated Carbon ◽  
Sulfonic Acid ◽  
Solid Acid ◽  
Methanesulfonic Acid ◽  
Biofuel Production ◽  
Acid Catalysts ◽  
Effects Of Temperature ◽  
Carbon Catalysts ◽  
Hydrolysis Of

In the present research, activated carbon-supported sulfonic acid catalysts were synthesized and tested as pretreatment agents for the conversion of switchgrass into glucose. The catalysts were synthesized by reacting sulfuric acid, methanesulfonic acid, and p-toluenesulfonic acid with activated carbon. The characterization of catalysts suggested an increase in surface acidities, while surface area and pore volumes decreased because of sulfonation. Batch experiments were performed in 125 mL serum bottles to investigate the effects of temperature (30, 60, and 90 °C), reaction time (90 and 120 min) on the yields of glucose. Enzymatic hydrolysis of pretreated switchgrass using Ctec2 yielded up to 57.13% glucose. Durability tests indicated that sulfonic solid-impregnated carbon catalysts were able to maintain activity even after three cycles. From the results obtained, the solid acid catalysts appear to serve as effective pretreatment agents and can potentially reduce the use of conventional liquid acids and bases in biomass-into-biofuel production.

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