Synthesizing high value-added composite photocatalyst using waste capacitors combined with PANI by mechanical chemistry method

2021 ◽  
Author(s):  
Yilin Cao ◽  
Bo Niu ◽  
Honghuai Sun ◽  
Zhenming Xu
Keyword(s):  
Acid Leaching ◽  
Value Added ◽  
Composite Photocatalyst ◽  
Chemistry Method ◽  
Main Components

The main components of waste capacitors are BaTiO3, Ag, Pd, Sn, Ni, Nb, and Pb, which are valuable for recycling. At present the acid leaching is applied to separate metals...

Determination of Bioactive Components of Waste Leaves from Chinese Hackberry by GC/MS

2011 ◽  
Vol 230-232 ◽  
pp. 930-934
Author(s):  
Gong Xiu He ◽  
Dang Quan Zhang ◽  
Qi Mei Liu ◽  
Kuan Peng
Keyword(s):  
Water Stress ◽  
Value Added ◽  
Chemical Components ◽  
Bioactive Components ◽  
Freeze Dried ◽  
History Of ◽  
Celtis Sinensis ◽  
Analytical Result ◽  
Main Components

Chinese Hackberry (Celtis sinensis) tree has high adaptability to environment and tolerance to water stress, and a long history of utilization and plantation in many countries. However, researches on Chinese Hackberry were mostly focused on the biomass analyses and utilizations of its wood, and lacked those to analyze the chemical components of extractives of Chinese Hackberry leaves, which was very important to recover and utilize the polluting waste Chinese Hackberry leaves. Therefore, the chemical components of benzene/ethanol extractives of Chinese Hackberry leaves were analyzed by method of GC/MS in order to identify top value-added bioactive components from waste leaves of Chinese Hackberry tree. The analytical result showed that the main components of benzene/ethanol extractives of freeze-dried Chinese Hackberry leaves by GC/MS analysis were identified 10 components (106 peaks) as: Sesquirosefuran (48.57%), Thiophene, 2-ethyltetrahydro- (20.01 %), Hexatriacontane (8.67%), Octadecane (8.60%), 1-Eicosanol Pregn-4-en-3-one, 20-hydroxy-, (20R)- (4.52%), 1-Amino-2-(hydroxymethyl)anthraquinone (3.63%), 1,3-Diphenyl-(4H)1,2,4-triazoline- (1.92%), Tricyclo[4.3.1.13,8]undecane-1-carboxylic acid (1.69%), Eucalyptol (1.60%), etc. As the first report here, our result by GC/MS showed that the benzene-methanol extractive of freeze-dried Chinese Hackberry leaves can be developed into top value-added materials of spicery, biomedicines, and biofuel.

scholarly journals Colombian fusel oil

2016 ◽  
Vol 36 (2) ◽  
pp. 21 ◽  
Author(s):  
Natalia Montoya ◽  
Jairo Durán ◽  
Fernando Córdoba ◽  
Iván Darío Gil ◽  
Carlos Alexander Trujillo ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Physicochemical Properties ◽  
Solid Phase ◽  
Value Added ◽  
Acid Value ◽  
Raw Material ◽  
Gas Chromatography Mass Spectrometry ◽  
Fusel Oil ◽  
Complementary Techniques ◽  
Main Components

By-products valorization in bio-fuels industry is an important issue for making the global process more efficient, more profitable and closer to the concept of biorefinery. Fusel oil is a by-product of bioethanol production that can be considered as an inexpensive and renewable raw material for manufacturing value-added products. In this work, results in terms of composition and physicochemical properties of six samples of fusel oil from industrial alcohol facilities are presented. Composition of the main components was established by gas chromatography. Complementary techniques, such as headspace solid-phase microextraction and gas chromatography–mass spectrometry (GC-MS), were used for detection of minor components. Fifty-five compounds were identified. Physicochemical properties such as density, acid value, moisture content and true boiling point curves were determined. Results are useful in the conceptual design of separation strategies for recovering higher alcohols, as well as to consider new options of valorization alternatives for fusel oil.

Py-GC/MS Analysis of Bioactive Components of 450°C Pyrolyzate from Ethanol Extractives of Oil-Tea Cake

2011 ◽  
Vol 480-481 ◽  
pp. 513-518
Author(s):  
Qi Mei Liu ◽  
Wan Xi Peng
Keyword(s):  
Phosphonic Acid ◽  
Value Added ◽  
Bioactive Components ◽  
Cyclobutanedicarboxylic Acid ◽  
Ms Analysis ◽  
Cosmetic Industry ◽  
Analytical Result ◽  
Main Components

450°C-based pyrolysis- GC/MS technology was used to analyze the bioactive components of ethanol extractives of oil-tea cake. The analytical result showed that 38 peaks were obtained from the 450°C-based pyrolyzate of ethanol extractives of oil-tea cake, and 37 compounds representing 97.81 % of the total areas were identified (Table 1). The analytical result showed that the main components of ethanol extractives of oil-tea cake by 450°C-based pyrolysis- GC/MS were as: Benzene, 1,2,3-Trimethoxy-5-Methyl- (21.56%), Phenol, 3,4-Dimethoxy- (16.31%), 3',5'-Dimethoxyacetophenone (14.37%), 1,2-Ethanediamine, N-Ethyl- (6.62%), Indole (5.39%), Mequinol (4.13%), Phosphonic Acid, (P-Hydroxyphenyl)- (2.97%), 1,2-Cyclobutanedicarboxylic Acid, Cis- (1.67%), Bicyclo 3.1.0 Hexan-3-One (1.38%), Benzene, 1,4-Dimethoxy-2,3,5,6- Tetramethyl- (1.35%), 2h-Azepin-2-One, Hexahydro-1-(2-Propenyl)- (1.15), etc. The results of function analyses showed that the 450°C-based pyrolyzate of ethanol extractives of oil-tea cake can be used as rare natural medicinal materials, and value-added materials of spice, food and cosmetic industry.

Analysis of Biomedical Prospect of Leaves from Liriodendron Chinense (Hemsl.) Sarg by GC/MS

2011 ◽  
Vol 480-481 ◽  
pp. 1341-1345 ◽  
Author(s):  
Dang Quan Zhang ◽  
Huai Yun Zhang ◽  
Lin Lin Guo ◽  
Kuan Peng
Keyword(s):  
Methyl Formate ◽  
Value Added ◽  
Chemical Components ◽  
Butanoic Acid ◽  
Freeze Dried ◽  
Liriodendron Chinense ◽  
History Of ◽  
Analytical Result ◽  
Main Components ◽  
Tulip Tree

Liriodendron chinense (Hemsl.) Sarg (Chinese tulip tree) has a long history of utilization and plantation, but the chemical components of benzene/ethanol extractives of Liriodendron chinense (Hemsl.) Sarg leaves were unrevealed. The analytical result by method of GC/MS showed that the chemical components of benzene/ethanol extractives of freeze-dried Liriodendron chinense were identified as 55 constituent, and the main components are as: 2-Propenenitrile, 2-chloro- (13.75%), 1-Mercapto-2-heptadecanon (13.10 %), 1-Mercapto-2-heptadecanon (12.77%), Ethanol, 2-butoxy- (12.03%), 1-Docosanol (10.74%), Guanidine, (4-aminobutyl)- (5.05%), 5,10-Pentadecadiyn-1-ol, acetate (4.82%), 1,2,4-Butanetriol (3.13%), Thiophene, 2-ethyltetrahydro- (2.09%), 1-Eicosanol (2.00%), 1-Butanol, 3-methyl-, formate (1.60%), Butanoic acid (1.60%), .alpha.-D-Xylofuranoside, methyl 3,5-di-O-methyl- (1.30%), Phenol, 2,6-dimethoxy-4-(2-propenyl)- (1.29%),5.alpha.-Pregnane-12,20-dione (1.12%), Cyclopentanol (0.82%), etc. As the first report here, our result by GC/MS showed that the benzene-methanol extractive of freeze-dried leaves from Liriodendron chinense (Hemsl.) Sarg can be developed into top value-added materials of medicines and spicery.

scholarly journals Assessment of production potential of the forestry complex of the regions of the European North of Russia

2020 ◽  
pp. 66-77
Author(s):  
I. A. Sekushina
Keyword(s):  
Raw Materials ◽  
Value Added ◽  
Komi Republic ◽  
Market Potential ◽  
Production Potential ◽  
Timber Industry ◽  
European North ◽  
Murmansk Region ◽  
Main Components ◽  
Effective Use

Forest resources and their processing are one of the main components of the economic base of the regions of the European North of Russia. At the same time, the mere fact of the presence of rich wood reserves does not at all indicate their effective use. In this regard, the assessment of the existing production potential of the timber industry complex of these constituent entities of the Russian Federation is of particular relevance and importance. The article discusses the approaches of modern researchers to the assessment of both the forest raw materials and the economic and production potential. The author’s technique is proposed, based on the use of reference values and calculations of the integral indicator of the production potential of the timber industry complex. As a result of the study, the author came to the conclusion that the production potential of the timber industry of the regions of the European North of Russia is not fully used – only 62%. In terms of regions, the leader is the Komi Republic, and the outsider is the Murmansk region. The largest reserves are available in the use of forest and market potential. The low level of use of the first is explained by low rates of development of the estimated cutting area, as well as insufficient volumes of reforestation. Low indicators of assessing market potential are due to the fact that low value-added products still dominate in the structure of production of the timber industry complex.

scholarly journals Basic Steps to Promote Biorefinery Value Chains in Forestry in Italy

2021 ◽  
Vol 13 (21) ◽  
pp. 11731
Author(s):  
Swati Tamantini ◽  
Alberto Del Lungo ◽  
Manuela Romagnoli ◽  
Alessandro Paletto ◽  
Michael Keller ◽  
...  
Keyword(s):  
Value Added ◽  
Energy Generation ◽  
Value Chains ◽  
Wood Biomass ◽  
Wood Industry ◽  
Lignocellulosic Feedstock ◽  
New Methodologies ◽  
End Use ◽  
Main Components ◽  
Value Added Products

Biorefineries are an important pillar to conduct the transition toward a circular bioeconomy. Forestry value chains produce wood biomass from harvesting and processing residues that have potential to be used in biorefineries, but currently, these residues are mostly used for energy generation. New biorefineries and new methodologies of wood fractionation allow the production of high value-added products based on carbohydrates and lignin. However, biorefineries based on lignocellulosic feedstock are still few in European countries and even less in Italy. The present study analyses the processes involved in a scenario of establishment of forest biorefineries, reviewing the main components and the actual organization of forestry value chains in Italy. The aim is to have a general vision, to identify and to focus the possibilities of the actual value chains and to fill gaps. The development of the territories is thought of in a perspective of a broader repertoire and more branched value chains than simple energy-generation end use, reviewing the tool for a feasibility study that could potentially involve lignocellulosic biorefineries also based on forest-wood industry feedstocks.

Determination of Biomedical Constituents of 350°C Pyrolyzate from Benzene/Ethanol Extractives of Old Bark from Cinnamomum Camphora Trunk

2011 ◽  
Vol 230-232 ◽  
pp. 935-939
Author(s):  
Wei He ◽  
Dang Quan Zhang ◽  
Qi Mei Liu ◽  
Kuan Peng
Keyword(s):  
Methyl Ester ◽  
Chemical Constituents ◽  
Acid Methyl Ester ◽  
Value Added ◽  
Acid Ethyl Ester ◽  
Dodecanoic Acid ◽  
Hexadecanoic Acid ◽  
Acid Methyl ◽  
Analytical Result ◽  
Main Components

The extractives of C. camphora old bark were used to cure some special diseases; however, the biomedical constituents of extractives of C. camphora old bark are still not completely explained. Therefore, 350 °C-based pyrolysis- GC/MS technology was used to identify the top value-added biomedical constituents of old bark-based benzene/ethanol extractives from C. camphora trunk. 74 chemical constituents representing 99.17% were identified from 86 peaks. The main components are as: Dodecanoic acid, 1-(hydroxymethyl)-1,2-ethanediyl ester (15.717%), Octacosanoic acid, methyl ester (10.357%), Abietic acid (8.483%), Heptacosane (5.678%), Ethyl alcohol (5.282%), Hexadecanoic acid, 2-hydroxy-, methyl ester (3.365%), Hexacosanoic acid, methyl ester (2.936%), 1,2-Benzenedicarboxylic acid, butyl 2-methylpropyl ester (2.928%), 2-Methoxy-4-vinylphenol (2.692%), Hexadecanoic acid, ethyl ester (2.312%), Hexacosane (2.076%), Tetracosanoic acid, methyl ester (2.013%), etc. The analytical result showed that the 350 °C pyrolyzate of benzene/ethanol extractives from C. camphora old bark is abundant in biomedical constituents, and also contains other bioactive components, which can be used as top value-added materials of high-grade cosmetic, food, spice and chemical solvents.

Study of Bubbles Elimination in Silica Glass Produced by Flame Fusion from Brazilian Natural Quartz Powder

2014 ◽  
Vol 798-799 ◽  
pp. 375-380 ◽  
Author(s):  
Christiano Pereira Guerra ◽  
Eduardo Ono ◽  
Murilo Ferreira Marques Santos ◽  
Carlos Kenichi Suzuki
Keyword(s):  
Silica Glass ◽  
Acid Leaching ◽  
Value Added ◽  
High Technology ◽  
Optical Transmittance ◽  
Quartz Powder ◽  
Natural Quartz ◽  
Technology Industry ◽  
High Optical Transmittance ◽  
High Technology Industry

Silica glass is a fundamental material for the high technology industry due to its physical properties. This material is widely used in the semiconductor, chemical and optical industry. For applications in the optical industry and special lamps, it is necessary that the silica has a reduced content of bubbles and high optical transmittance in the wavelength regions of visible and medium ultraviolet (200 nm – 300 nm). Silica glass samples were produced by the flame fusion Verneuil Method of Brazilian commercial natural quartz powder and imported high purity commercial powder. An acid leaching procedure of the national quartz powder was introduced before the fusion in order to decrease bubbles concentration. The results were compared with the silica glass produced with imported quartz powder and a commercial silica glass used for the fabrication of special lamps, showing an excellent feasibility of application of Brazilian natural quartz to produce high value added silica glass.

scholarly journals Republic of Poland

2018 ◽  
Vol 18 (357) ◽  
Author(s):  
Keyword(s):  
Statistical Data ◽  
Gap Analysis ◽  
Value Added ◽  
Policy Framework ◽  
National Accounts ◽  
Analysis Program ◽  
Tax Gap ◽  
The Difference ◽  
Main Components ◽  
Revenue Administration

This report presents the results of applying the Revenue Administration Gap Analysis Program (RA-GAP) value-added tax (VAT) gap estimation methodology1 to Poland for the period 2010–16. The RA-GAP methodology employs a top-down approach for estimating the potential VAT base, using statistical data from national accounts on value-added generated in each sector. There are two main components to this methodology for estimating the VAT gap: 1) estimate the potential VAT collections for a given period; and 2) determine the accrued VAT collections for that period. The difference between the two values is the VAT gap. RA-GAP provides estimates of the two components of the tax gap: the compliance gap and the policy gap. The compliance gap is the difference between the potential VAT that could have been collected given the current policy framework and actual accrued VAT collections. The policy gap is the difference between the overall tax gap and the compliance gap. To put the level and trends of the compliance gap into context it is also necessary to analyze the level and trends of the overall tax gap and the policy gap.

scholarly journals Recent Advances in the Reutilization of Granite Waste in Various Fields

2021 ◽  
Vol 8 ◽  
pp. 30-40
Author(s):  
Di Wang ◽  
Jinshan Lu ◽  
Junxiong Zhan ◽  
Zhiyong Liu ◽  
Bin Xie
Keyword(s):  
Building Materials ◽  
Sewage Treatment ◽  
Value Added ◽  
High Strength ◽  
Potash Feldspar ◽  
Flotation Process ◽  
Recent Advances ◽  
Main Components ◽  
Fine Ceramics ◽  
Value Added Products

Quarrying and processing of granite produce large amounts of waste residues. Besides being a loss of resources, improper disposal of these wastes results in pollution of the soil, water and air around the dumpsites. The main components of granite waste are quartz, feldspars and a small amount of biotite. Due to its hard and dense texture, high strength, corrosion resistance and wear resistance, granite waste may be recycled into building materials, composite materials and fine ceramics, effectively improving their mechanical properties and durability. By using the flotation process, high value-added products such as potash feldspar and albite may be retrieved from granite waste. Also, granite waste has the potential for application in soil remediation and sewage treatment. This review presents recent advances in granite waste reutilization, and points out the problems associated with its use, and the related countermeasures, indicating the scale of high value-added reutilization of granite waste.

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