Anatomical and chemical characteristics of leaves and branches of Juniperus deppeana var. deppeana (Cupressaceae): A potential source of raw materials for the perfume and sweet candies industries

2018 ◽  
Vol 113 ◽  
pp. 50-54 ◽  
Author(s):  
Maite Lascurain Rangel ◽  
José A. Guerrero-Analco ◽  
Juan L. Monribot-Villanueva ◽  
Ana L. Kiel-Martínez ◽  
Sergio Avendaño-Reyes ◽  
...  
Keyword(s):  
Raw Materials ◽  
Chemical Characteristics ◽  
Potential Source

scholarly journals Analysis of Content of Selected Critical Elements in Fly Ash

2016 ◽  
Vol 62 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Dorota Makowska ◽  
Faustyna Wierońska
Keyword(s):  
Fly Ash ◽  
Coal Combustion ◽  
Power Plants ◽  
Raw Materials ◽  
Coal Fly Ash ◽  
New Mineral ◽  
The European Union ◽  
Cobalt Chromium ◽  
Critical Elements ◽  
Potential Source

AbstractPursuant to the new mineral policy of the European Union, searching for new sources of raw materials is required. Coal fly ash has long been considered as a potential source of a number of critical elements. Therefore, it is important to monitor the contents of the critical elements in fly ash from coal combustion. The paper presents the results of examinations of the contents of selected elements, i.e. beryllium, cobalt, chromium and germanium in fly ash from Polish power plants. The results of the conducted investigations indicate that the examined ash samples from bituminous coal combustion cannot be treated as a potential source of the analysed critical elements. The content of these elements in ash, though slightly higher than their average content in the sedimentary rocks, is, however, not high enough to make their recovery technologically and economically justified at this moment.

Fabrication and Properties of Panicum repens Reinforced Cement

2018 ◽  
Vol 879 ◽  
pp. 161-165
Author(s):  
Varinthorn Boonyaroj ◽  
Sirichai Saramanus
Keyword(s):  
Compressive Strength ◽  
Raw Materials ◽  
Chemical Characteristics ◽  
Sodium Hydroxide Concentration ◽  
X Ray ◽  
Optimal Ratio ◽  
Panicum Repens ◽  
Reinforced Cement ◽  
Materials Used ◽  
Scanning Electron

This research aims to fabrication and evaluation the properties of cement reinforcement made from Panicumrepens. The research is divided into two parts are as follows; to determined the optimal ratio selection, and to compare the properties of Panicumrepens reinforced cement, and without grasses by using the optimal ratio. The raw materials used in this research were cut in length of 2.0-2.5 cm. In this research was determined the properties of Panicumrepens reinforced cement in terms of bulk density, water absorption, and compressive strength. The influence of fibers soaked with 5% of sodium hydroxide concentration was also conducted in this research. The surface structure and chemical characteristics of fibers used to produce reinforced cement were observed by using scanning electron microscope (SEM), and energy dispersive x-ray spectrometer (EDS), respectively. Moreover, relationships of information collected from this research were concerned. Furthermore, the addition of Panicumrepens fibers could improve the flexural strength of composite materials.

Synthesis and Structure Determination of Carbonized Nano Mesoporous Materials Based on Vegetable Raw Materials

2012 ◽  
Vol 535-537 ◽  
pp. 1041-1045 ◽  
Author(s):  
Seitkhan Azat ◽  
Valodia V. Pavlenko ◽  
Almagul R. Kerimkulova ◽  
Zulkhair A. Mansurov
Keyword(s):  
Mesoporous Materials ◽  
Structure Determination ◽  
Carbon Nanomaterials ◽  
Raw Materials ◽  
Agricultural Products ◽  
Chemical Characteristics ◽  
Physico Chemical ◽  
Vegetable Raw Materials ◽  
Waste Agricultural Products

This article presents the results of the synthesis of carbon nanomaterials: Nanoscale materials obtained by carbonization of waste agricultural products (apricot kernel, walnut, rice husk). The results of physico-chemical characteristics of the obtained nanomaterials.

Chemical characteristics and potential source of fulvic acids leached from the plow layer of paddy soil

Geoderma ◽  
2004 ◽  
Vol 120 (3-4) ◽  
pp. 309-323 ◽  
Author(s):  
Nagamitsu Maie ◽  
Akira Watanabe ◽  
Makoto Kimura
Keyword(s):  
Paddy Soil ◽  
Fulvic Acids ◽  
Chemical Characteristics ◽  
Potential Source

Exploration of fertilizer industry wastes as potential source of critical raw materials

2017 ◽  
Vol 143 ◽  
pp. 497-505 ◽  
Author(s):  
C.R. Cánovas ◽  
R. Pérez-López ◽  
F. Macías ◽  
S. Chapron ◽  
J.M. Nieto ◽  
...  
Keyword(s):  
Raw Materials ◽  
Fertilizer Industry ◽  
Potential Source ◽  
Critical Raw Materials

scholarly journals Catalytic processing of distillate fractions of a resin in the presence of finely dispersed catalysts

2021 ◽  
Vol 340 ◽  
pp. 01036
Author(s):  
Nazym Smagulova ◽  
Zhaxyntay Kairbekov ◽  
Nurlan Ussenov
Keyword(s):  
Raw Materials ◽  
Polyaromatic Hydrocarbons ◽  
Small Particles ◽  
Dispersed Catalysts ◽  
Potential Source ◽  
Motor Fuels ◽  
Oil Residue ◽  
Catalytic Processing ◽  
Distillate Fractions ◽  
Heavy Oil Residue

The article describes the catalytic cracking of heavy oil residue in the presence of a finely dispersed catalyst. It was determined that in the processing of high molecular weight hydrocarbons, catalysts are effective, which are uniformly distributed in the volume of raw materials and are introduced into the technological process in the form of small particles. Coke tar mainly consists of 27.00 wt.% asphaltenes, 60.00 wt.% of polyaromatic hydrocarbons that have been studied and identified as a potential source of raw materials to produce motor fuels in the future.

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