scholarly journals Stabilization of wines with polymers and new bio-based carbon materials

2021 ◽  
Vol 34 ◽  
pp. 06014
Author(s):  
Veronica Andreeva ◽  
Vera Kashparova ◽  
Daria Chernysheva ◽  
Denis Tokarev ◽  
Yash Kataria
Keyword(s):  
Carbon Materials ◽  
Raw Materials ◽  
New Materials ◽  
Renewable Raw Materials ◽  
Complex Product ◽  
Production Stage

Wine is a complex product which changes its properties at every production stage, however due to the different processes which take place in the production stage can result into the formation of unwanted turbidity, deposition or can lead to distortion of taste. Despite the advances in improving wine stabilization processes, the search for new materials continues. The present work focuses on clarification of wines on the basis of new polymers and carbon materials obtained from bio-renewable raw materials and byproducts from the production of 2,5-hydroxymethylfurfural (5-HMF).

Thermal and Dynamic Investigations on Brake Pad Composites Produced with Lignin-Phenol-Formaldehyde Resin

2012 ◽  
Vol 730-732 ◽  
pp. 390-394 ◽  
Author(s):  
Joao V.W. Silveira ◽  
Edison Bittencourt ◽  
Zaida J. Águila
Keyword(s):  
Raw Materials ◽  
Phenol Formaldehyde ◽  
Weight Ratio ◽  
Sem Analysis ◽  
Phenol Formaldehyde Resin ◽  
Formaldehyde Resin ◽  
Brake Pad ◽  
New Materials ◽  
Renewable Raw Materials ◽  
Brake Pads

Brake pads are composite materials which have been constantly improved by new materials that increase the quality and reduce the non-renewable raw materials. The goal of this work is to study the behavior of brake pads produced with replacement of phenol-formaldehyde resin by lignin up to 40% weight ratio. The Krauss method of characterization and SEM analysis were employed. The results showed an average friction coefficient approximately to μm=0.4 and a heterogeneous surface morphology. The satisfactory results are compatible with the current friction materials.

scholarly journals High Temperature Continuous Gas Purification and Graphitization System and Process for Carbon Particulate Materials

2022 ◽  
Vol 2152 (1) ◽  
pp. 012036
Author(s):  
Qianhe Chen
Keyword(s):  
Carbon Materials ◽  
Raw Materials ◽  
Modern Science ◽  
Gas Purification ◽  
New Materials ◽  
High Carbon ◽  
High Carbon Content ◽  
Processing Technologies ◽  
New Material ◽  
Carbon Particulate

Abstract With the continuous development of modern science and technology, more and more new materials have been applied to production and life. As a new material, carbon granular material is made of carbon, graphite materials and other various raw materials with high carbon content through a series of processing technologies. China is one of the most widely used carbon materials in the world. The purpose of this paper is to optimize and enhance the application effect of carbon materials and promote the construction of a new economic model of energy conservation and emission reduction in China. The specific research is as follows:

Hydrogenolysis of glucose and fructose in glycol solutions over CuO-MgO-ZrO2 catalyst

2020 ◽  
pp. 48-55
Author(s):  
M.E. Sharanda ◽  
◽  
E.A. Bondarenko ◽  
Keyword(s):  
Ethylene Glycol ◽  
Propylene Glycol ◽  
Flow Reactor ◽  
General Trend ◽  
Raw Materials ◽  
Reaction Products ◽  
Renewable Raw Materials ◽  
High Partial Pressure ◽  
Zro2 Catalyst ◽  
Phase Process

Ethylene glycol and propylene glycol are important representatives of polyols. On an industrial scale, they are obtained from petrochemical raw materials. Within a decade, significant efforts were made for the producing of polyols from biologically renewable raw materials - carbohydrates. The general trend for carbohydrate hydrogenolysis includes application of liquid-phase process with the use of modified metal-oxide catalysts, at 120-120 ° C and pressure of 3MPa or above. So high pressure is used for the reason to increase hydrogen solubility, and also due to the high partial pressure of low boiling solvents. We supposed that usage of high boiling solvents could allow hydrogenolysis to be performed at the lower pressure. Ethylene glycol and propylene glycol are of particular interest as such kind of solvent since they are both the main products of glucose hydrogenolysis. In this work, the process of hydrogenolysis of glucose and fructose over Cu / MgO-ZrO2 catalyst have been studied at temperature range of 160-200 °C and a pressure of 0.1-0.3 MPa in a flow reactor. The solvents were simultaneously the target products of the reaction - ethylene glycol and / or propylene glycol. Gas chromatography and 13C NMR were used for the reaction products identification. It was found that the solubility of glucose in propylene glycol is 21 % by weight, and in ethylene glycol 62% by weight. It was pointed out that the process of hydrogenolysis can take place at a pressure close to atmospheric. Under these conditions, the conversion of hexoses reaches 96-100 %. The reaction products are preferably propylene glycol and ethylene glycol. The total selectivity for C3-2 polyols is 90-94 %, that is higher than in the hydrogenolysis of glucose in aqueous solution.

scholarly journals Organizational, technical and economic fundamentals of waste management and monitoring

2020 ◽  
Vol 164 ◽  
pp. 08031
Author(s):  
Evgeniy Velichko ◽  
Edward Tshovrebov ◽  
Ural Niyazgulov
Keyword(s):  
Legal Status ◽  
Raw Materials ◽  
Economic Regulation ◽  
Economic Activities ◽  
Renewable Raw Materials ◽  
Secondary Resources ◽  
Secondary Raw Materials ◽  
Production And Consumption ◽  
Level Of Use ◽  
Goals And Objectives

The article deals with issues of monitoring, planning, organizational and technical support, economic regulation and improving the efficiency of the infrastructure for processing, recycling and disposal of waste, resource conservation and management of secondary resources, their use as secondary raw materials for production, services, work and power generation. The Russian Federation has significant potential for economic growth due to the efficient use of secondary resources from billions of tons of generated production and consumption waste annually. These ecologically unsafe anthropogenic objects can be characterized as a source of valuable renewable raw materials, material and fuel and energy resources. However, the scale and level of use of various types of secondary resources are characterized by considerable unevenness and depend on the demand for secondary raw materials, the resource value of the waste, the environmental situation arising from treating them as environmental polluters, on the real economic conditions that determine the profitability of each specific type. economic activities that use secondary resources for the manufacture of products, works, services, energy production. The methods of monitoring the industry for the treatment, disposal and disposal of waste are: information-analytical, information-statistical, sociological, geo-information. The legal status of the monitoring system of the industry for the treatment, disposal and disposal of waste is determined by the limitations of its functionality within the framework of the goals and objectives facing it.

Investigation on Shear Behaviour of Flax-Kenaf Hybrid Composite

2014 ◽  
Vol 1051 ◽  
pp. 139-142 ◽  
Author(s):  
V.S. Srinivasan ◽  
S. Rajendra Boopathy ◽  
B. Vijaya Ramnath
Keyword(s):  
Hybrid Composite ◽  
Raw Materials ◽  
Technological Development ◽  
Fiber Composites ◽  
Shear Behaviour ◽  
Biodegradable Material ◽  
New Materials ◽  
Double Shear ◽  
Environmental Friendly ◽  
Shear Property

The present technological development makes us to find and fabricate new materials to replace existing materials. Also, the need for environmental friendly, easily biodegradable material plays prime role in determining the raw materials. In this paper Flax and Kenaf fibres are used as the suspending matrix to form hybrid composite with epoxy resin. Hand layup technique is carried out in this work to fabricate composite laminate. The double shear property is evaluated. The result shows that the hybrid composite shows better property than mono fiber composites.

scholarly journals Palm Olein as Renewable Raw Materials for Industrial and Pharmaceutical Products Applications: Chemical Characterization and Physicochemical Properties Studies

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Darfizzi Derawi ◽  
Bashar Mudhaffar Abdullah ◽  
Hasniza Zaman Huri ◽  
Rahimi M. Yusop ◽  
Jumat Salimon ◽  
...  
Keyword(s):  
Chemical Modification ◽  
Palm Olein ◽  
Raw Materials ◽  
Viscosity Index ◽  
Chemical Characterization ◽  
Pharmaceutical Products ◽  
Raw Material ◽  
Chemical Compositions ◽  
Renewable Raw Materials ◽  
Modification Process

Palm olein (POo) is widely produced as edible oil in tropical countries. POois considered as renewable raw material for the new industrial and pharmaceutical products synthesis based on its characterization. Palm olein was good on its viscosity index, oxidative stability, and flash and fire point. POocontained unsaturated triacylglycerols (TAGs): POO (33.3%); POP (29.6%) which plays an important role in chemical modification process to produce new industrial products. The double bond was detected on1H-NMR (5.3 ppm) and13C-NMR (130 ppm) spectra. The chemical compositions of POowere tested by using high performance liquid chromatography (HPLC) and gas chromatography (GC) techniques. This unsaturated oil is potentially to be used as renewable raw materials in chemical modification process to synthesise polyols, polyurethane, and biolubricant for industrial and pharmaceutical products application.

scholarly journals Carbon Nanosorbent for Purification Different Biomolecules

2011 ◽  
Vol 14 (1) ◽  
pp. 41
Author(s):  
Z.A. Mansurov ◽  
A.R. Kerimkulova ◽  
S.A. Ibragimova ◽  
E.Y. Gukenheimer
Keyword(s):  
Carbon Nanostructures ◽  
Large Scale ◽  
Carbon Materials ◽  
Raw Materials ◽  
Carbon Sorbent ◽  
Nanostructured Carbon ◽  
Lipid Complex ◽  
Carbon Sorbents ◽  
Physico Chemical ◽  
Chemical Studies

The article presents the results of physico-chemical studies on the development of nanostructured carbon materials from domestic raw materials. Were obtained and tested micro-mesoporous carbon sorbents for molecular-sieve chromatography of markers and investigated the applicability of carbon sorbents for the separation of protein-lipid complex, and plant bio-stimulator. Carbon sorbents have well-developed porous structure but their disadvantage is the weak mechanical<br />strength. Recently it was shown that some carbon nanostructures have enormous strength. Thus arose the need to give the nano structured elements to carbon sorbent. Creating carbon sorbents containing nanocarbon structure was the aim of our study, as these by sorbents will be very useful for large-scale purification of biomolecules.

scholarly journals Substrates for slow pyrolysis

2018 ◽  
Vol 168 ◽  
pp. 08004
Author(s):  
Václav Peer ◽  
Jaroslav Frantík ◽  
Jan Kielar ◽  
Drahomír Mašek
Keyword(s):  
Sewage Sludge ◽  
Chemical Industry ◽  
Raw Materials ◽  
Ash Content ◽  
Wood Chips ◽  
Simple Construction ◽  
New Materials ◽  
Solid Materials ◽  
Slow Pyrolysis ◽  
Pyrolysis Of Biomass

Slow pyrolysis of solid materials can produce new materials usable for energy or chemical industry. The advantage of pyrolysis devices is the simple construction and process control and the ability to utilize materials with different properties (composition, ash content). Produced gaseous, liquid and solid materials could be used as a sources of energy, raw materials in chemical industry or substances for improving of soil properties. At article are described products of slow pyrolysis of biomass (wood chips), agrifuels (hay, wheat straw) and sewage sludge.

scholarly journals The impact of functional groups of the surface of carbon materials on the efficiency of purification of extraction phosphoric acid from fluorine compounds

2019 ◽  
Vol 2 ◽  
pp. 11-18
Author(s):  
Smirnov N.N. ◽  
Konoval A.V. ◽  
Smirnova D.N. ◽  
Kochetkov S.P.
Keyword(s):  
Phosphoric Acid ◽  
Functional Groups ◽  
Carbon Materials ◽  
Raw Materials ◽  
Carbon Adsorbents ◽  
Joint Stock Company ◽  
Stock Company ◽  
Fluorine Compounds ◽  
The Impact ◽  
Extraction Phosphoric Acid

The environmental problems of the production of extraction phosphoric acid and the effect of fluorine on the human body are discussed in the article. The creation of the industry of phosphoric fertilizers on the basis of processing of fluorine-containing phosphate raw materials and fluorine-containing compounds, the development of their application require the study of environmental consequences arising from this, because fluorine is characterized by high mobility in the biological cycle of metabolism. For the purification of phosphoric acid from fluorine was used carbon adsorbents such as active charcoal brand BAU, natural graphite deposits Kyshtymsky, P514 soot, charcoal. Experiments on the purification was carried out on non-evaporated half-hydrated extraction phosphoric acid which was produced by joint stock company «Apatit» in Cherepovets city in Russia. The following analyses were carried out: IR-Fourier spectrometry, research of acid–base properties of carbon materials by potentiometric titration, potentiometric method of fluorine determination in extraction phosphoric acid. It is mentioned that the carbon black P514 is the most efficient adsorbent for purification of extraction phosphoric acid. The total number of functional groups on its surface is 0.62 mmol/g, the degree of purification from fluorine compounds is 94.8%.

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