scholarly journals Chemical Characterization of Lignin and Lipid Fractions in Industrial Hemp Bast Fibers Used for Manufacturing High-Quality Paper Pulps

2006 ◽  
Vol 54 (6) ◽  
pp. 2138-2144 ◽  
Author(s):  
Ana Gutiérrez ◽  
Isabel M. Rodríguez ◽  
José C. del Río
Keyword(s):  
Chemical Characterization ◽  
High Quality ◽  
Bast Fibers ◽  
High Quality Paper ◽  
Lipid Fractions ◽  
Industrial Hemp ◽  
Paper Pulps

scholarly journals Editorial for Special Issue “Historical Mineral Pigments”

Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 237
Author(s):  
Carolina Cardell ◽  
Jose Santiago Pozo-Antonio
Keyword(s):  
Chemical Characterization ◽  
Glass Enamel ◽  
Special Issue ◽  
High Quality ◽  
Physical Chemical ◽  
Scientific Disciplines ◽  
Natural And Synthetic

The physical–chemical characterization of natural and synthetic historical inorganic and mineral pigments, which may be found embedded in paintings (real or mock-ups), glass, enamel, ceramics, beads, tesserae, etc., as well as their alteration under different decay scenarios, is a demanding line of investigation. This field of research is now both well established and dynamic, as revealed by the numerous publications in high-quality journals of varied scientific disciplines. [...]

scholarly journals Chemical characterization of residual lignins from eucalypt paper pulps

2005 ◽  
Vol 74 (1-2) ◽  
pp. 116-122 ◽  
Author(s):  
David Ibarra ◽  
José C. del Río ◽  
Ana Gutiérrez ◽  
Isabel M. Rodríguez ◽  
Javier Romero ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Paper Pulps

Comparison of different fungal enzymes for bleaching high-quality paper pulps

2005 ◽  
Vol 115 (4) ◽  
pp. 333-343 ◽  
Author(s):  
Cécile Sigoillot ◽  
Susana Camarero ◽  
Teresa Vidal ◽  
Eric Record ◽  
Michèle Asther ◽  
...  
Keyword(s):  
High Quality ◽  
Fungal Enzymes ◽  
High Quality Paper ◽  
Paper Pulps

Complementary chemical characterization of distillates obtained from industrial hemp hurds by thermal processing

2020 ◽  
Vol 155 ◽  
pp. 112760
Author(s):  
Ayobami Salami ◽  
Kaisa Raninen ◽  
Jorma Heikkinen ◽  
Laura Tomppo ◽  
Teemu Vilppo ◽  
...  
Keyword(s):  
Thermal Processing ◽  
Chemical Characterization ◽  
Industrial Hemp

Producing High Quality CaCO3 by Phosphogypsum with New Ammonia-Base Carbonation Method

2014 ◽  
Vol 628 ◽  
pp. 115-119 ◽  
Author(s):  
Jun Ma ◽  
Li Ping Ma ◽  
De Hua Zhang ◽  
Bei Yan ◽  
Long Zhou ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Phosphoric Acid ◽  
Metal Ion ◽  
Room Temperature ◽  
Chemical Characterization ◽  
Mass Ratio ◽  
High Quality ◽  
Titration Method ◽  
Application Requirements

Phosphogypsum is a by-product of industrial phosphoric acid producing with wet method, a simple and efficient way to produce high quality CaCO3by phosphogysum is presented in this work. Calcium in the phosphogypsum converts into Ca (OH)2with the addition of NaOH, acid insoluble substances and metal ion which was also separated from calcium in phosphogypsum by HCl and NH3·H2O respectively. The purity and whiteness of CaCO3produced by the carbonization of purified CaCl2solution are 98% and 96%. The optimum mass ratio of phosphogypsum, NaOH and HCl was 25:12:35. Chemical characterization of the resultant CaCO3was performed by XRD, SEM, TG and chemical titration method, which indicate that this method is effective in producing spherical CaCO3at room temperature, moreover, the purity, whiteness and thermostability of calcium carbonate can meet most of application requirements for industrial CaCO3.

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