FROM LANDFILL TO RAW MATERIAL: OBTAINING HIGH QUALITY RECYCLED CULLET TO AVOID GLASS MANUFACTURING PROBLEMS

2021 ◽  
pp. 93-99
Author(s):  
Jacques van Putten
Keyword(s):  
Raw Material ◽  
High Quality ◽  
Manufacturing Problems

TECHNOLOGICAL ASPECTS OF HIGH QUALITY RAW MATERIAL OBTAINING FOR PECTIN PRODUCTION

1970 ◽  
pp. 47-50
Author(s):  
I. A. Ilina ◽  
I. A. Machneva ◽  
E. S. Bakun
Keyword(s):  
Raw Materials ◽  
Thermal Characteristics ◽  
Environmental Safety ◽  
Raw Material ◽  
High Quality ◽  
Temperature Conductivity ◽  
Drying Temperature ◽  
Plant Raw Materials ◽  
Gel Forming Ability

  The article is devoted to the study of the chemical composition, physical and thermal-pfysical characteristics of damp apple pomaces and the identifying patterns of influence of drying temperature the functional composition and gel-forming ability of pectin. The research is aimed at obtaining initial data for the subsequent calculation of the main technological, hydro-mechanical, thermal, structural and economic characteristics of devices for drying the plant raw materials, ensuring the environmental safety and high quality of pectin-containing raw materials, the reducing heat and energy costs. As a result of the study of the thermal characteristics of apple pomaces, the critical points (temperature conductivity – 16.5 x 10-8 m2/s, thermal conductivity – 0.28 W/m K, heat capacity – 1627 j/(kg K)) at a humidity of 56 % are determined, which characterizing the transition from the extraction of weakly bound moisture to the extraction of moisture with strong bonds (colloidal, adsorption). It was found that the pomaces obtained from apples of late ripening have a higher content of solids (21-23 %), soluble pectin and protopectin (2.5-4.5 %). Dried pomaces obtained from apple varieties of late ripening contain up to 25 % pectin, which allow us to recommend them as a source of raw materials for the production of pectin. The optimum modes of preliminary washing of raw materials are offered, allowing to the remove the ballast substances as much as possible. It is established that when the drying temperature increases, the destructive processes are catalyzed: the strength of the pectin jelly and the uronide component and the degree of pectin esterification are reduced. The optimum drying temperature of damp apple pomaces is 80 0C, at which the quality of pectin extracted from the dried raw materials is maintained as much as possible. It is shown that the most effective for the pectin production is a fraction with a particle size of 3-5 mm, which allow us to extract up to 71 % of pectin from raw materials.

Ball-Milling Graphite Used for Synthesis of Biocompatible Blue Luminescent Graphene Quantum Dots

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Zhou J ◽  
◽  
Dong Y ◽  
Ma Y ◽  
Zhang T ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Ball Milling ◽  
Graphene Quantum Dots ◽  
Raw Material ◽  
Hydroxyl Groups ◽  
High Quality ◽  
Widespread Application ◽  
Force Microscopy ◽  
Atomic Force ◽  
Transmission Electron

Graphene Quantum Dots (GQDs) have been prepared by oxidationhydrothermal reaction, using ball-milling graphite as the starting materials. The prepared GQDs are endowed with excellent luminescence properties, with the optimum emission of 320nm. Blue photoluminescent emitted from the GQDs under ultraviolet light. The GQDs are ~3nm in width and 0.5~2 nm in thickness, revealed by high-resolution transmission electron microscopy and atomic force microscopy. In addition, Fourier transform infrared spectrum evidences the existence of carbonyl and hydroxyl groups, meaning GQDs can be dispersed in water easily and used in cellar imaging, and blue area inside L929 cells were clearly observed under the fluorescence microscope. Both low price of raw material and simple prepared method contribute to the high quality GQDs widespread application in future.

Comprehensive Utilization of Pyrite with High Content of Asrenic

2012 ◽  
Vol 524-527 ◽  
pp. 965-968 ◽  
Author(s):  
Dan Liu ◽  
Shu Ming Wen ◽  
Yong Jun Xian ◽  
Hai Ying Shen ◽  
Shao Jun Bai ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Steel Industry ◽  
Raw Material ◽  
High Quality ◽  
Comprehensive Utilization ◽  
Roasting Temperature ◽  
Chinese Steel Industry ◽  
Iron Bearing

A technology of “arsenic removing- sulfuric acid producing- residuals for ironmaking” is proposed for comprehensive utilization of pyrite with high content of arsenic. The effect of roasting temperature and time on arsenic removing was investigated. The arsenic removed residuals obtained under the optimal arsenic removed conditions, was used to be proceeded for sulphur volatilization test. The results demonstrate that final residuals with 63.53% of Fe can be used for steel industry. This technology can be used to fully utilize sulphur and produce high quality concentrate as iron-bearing feed for steel industry, which will help to reduce the pollution of arsenic and extend raw material sourcing for Chinese steel industry.

scholarly journals Reforestation of ‘Village Forest’ to Improve Sustaiability Creative Industries in Desa Siponjot

2021 ◽  
Vol 5 (2) ◽  
pp. 714-722
Author(s):  
Noverita Sprinse Vinolina ◽  
Antonio Marro Sipayung ◽  
Dardanila ◽  
Sondang Pintauli
Keyword(s):  
Forest Restoration ◽  
Raw Materials ◽  
Economic Value ◽  
Economic Benefits ◽  
Musical Instruments ◽  
Creative Industries ◽  
Raw Material ◽  
High Quality ◽  
The Village

This program is conducted to assist Siponjot Village while empowering the people of Siponjot Village to be able to utilize and maximize the benefit of the village forest. Village forest might support the availability of raw materials required for making musical instruments, such as high quality of wood, including how to process wood waste from making musical instruments to be used as creative souvenirs and improve the economic value. The raw material for production determined its results of the production of wood-based musical instruments. Thus, in order to produce a high quality tanginang, hasapi, and gondang, which previously began to be produced by arts crafts in the Sitangkubang area of ​​Siponjot Village, a high quality of raw materials is needed. The community service team surveyed the location of planting seeds for village forest restoration, provided socialization related to the importance of village forest cultivation and the suitability of the Siponjot Village area for the cultivation of these plants. Village forest restoration aims to maintain the beauty and beauty of the village. Implementation of village reforestation activities starting from socializing forest tourism and the strength of village forests to the community, followed by a discussion about village forest management and its economic benefits. Handover of a thousand units of forest plant seedlings given to the villagers of Siponjot as part of the forest restoration program in the area.

The synthesis of a high-quality biodiesel product derived from Krabok (Irvingia Malayana) seed oil as a new raw material of Thailand

Fuel ◽  
2022 ◽  
Vol 308 ◽  
pp. 122009
Author(s):  
Wuttichai Roschat ◽  
Sunti Phewphong ◽  
Phongsakorn Pholsupho ◽  
Krittiyanee Namwongsa ◽  
Pimwipha Wongka ◽  
...  
Keyword(s):  
Seed Oil ◽  
Raw Material ◽  
High Quality

CARBON AND FUEL FROM RUBBER WASTE

2020 ◽  
pp. 103-108
Author(s):  
Gennadi I. Zhuravsky ◽  
Maksim I. Nitievski
Keyword(s):  
Zinc Oxide ◽  
Water Vapor ◽  
Raw Materials ◽  
Liquid Waste ◽  
Raw Material ◽  
High Grade ◽  
High Quality ◽  
Technical Carbon ◽  
Rubber Waste ◽  
Composite Mixture

The results of studies of thermolysis waste in the environment of overheated water vapor are presented. It is shown that as a result of fractionation from liquid waste thermolysis products, gasoline and diesel fuel fractions can be obtained. It is proposed to use a composite mixture of liquid and solid waste thermolysis products as raw materials for high-grade technical carbon. Studies have shown that high-grade technical carbon can be obtained as raw materials using a composite mixture of rubber waste thermolysis products as raw materials. The technological line of obtaining technical carbon from the products of thermolysis of worn tires is described. Analysis of the ash produced by the process of burning the composite mixture shows that it contains compounds of iron, zinc and silicon. Therefore, this ash is of interest as a high-quality raw material for the production of zinc oxide, as one of the main ingredients of rubber mixtures.

Obtaining of hairy roots cultures of kok-saghyz and analysis of the content of natural rubber

Biomics ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 449-454
Author(s):  
B.R. Kuluev ◽  
G.R. Gumerova ◽  
A.V. Knyazev ◽  
Kh.G. Musin ◽  
A.V. Chemeris
Keyword(s):  
Natural Rubber ◽  
Hairy Roots ◽  
Industrial Production ◽  
Hevea Brasiliensis ◽  
Dry Weight ◽  
Hexane Extract ◽  
Raw Material ◽  
Stress Factors ◽  
Special Equipment ◽  
High Quality

Kok-saghyz (Taraxacum kok-saghyz Rodin) is an alternative to Hevea brasiliensis source of high quality natural rubber that is able to grow in temperate climates. However, the field cultivation of kok-saghyz is associated with a number of problems, such as the need for seed stratification, seedlings that are very sensitive to stress factors, laboriousness in the fight against weeds and pests, uneven maturation of seeds, the lack of special equipment for sowing, collecting roots and seeds. In this regard, the use of hairy roots of kok-saghyz as a raw material for obtaining natural rubber seems to be promising. The aim of our work was to obtain cultures of hairy roots of kok-saghyz and to determine the content of natural rubber in them by the hexane method. In the course of the work, 10 lines of hairy roots of kok-saghyz were obtained, capable of growing in isolated cultures. It has been shown that these hairy roots accumulate an average of 7.5% hexane extract (rubber-like substances) per dry weight, which is about 1.5 times more than the roots of field kok-saghyz. Our data indicate that the use of the hairy roots of kok-saghyz is promising for the industrial production of natural rubber.

Obtaining Calcium Sulfoaluminate Using Aluminate Waste

2021 ◽  
Vol 1037 ◽  
pp. 743-750
Author(s):  
Ivan Y. Burlov ◽  
Dmitriy A. Zorin ◽  
Yury R. Krivoborodov
Keyword(s):  
Phase Analysis ◽  
Firing Temperature ◽  
Weak Dependence ◽  
Raw Material ◽  
High Quality ◽  
X Ray ◽  
Calcium Sulfoaluminate ◽  
Gypsum Content ◽  
Calcium Sulphoaluminate

In this work, studies have been carried out to replace bauxite with aluminate slags. Compounds of raw mixtures without use of fossil aluminate materials with different gypsum content have been developed. Instability of assimilation of anhydrite into calcium sulphoaluminate has been established. X-ray phase analysis has shown a weak dependence of increase in the firing temperature and increase in the yield of the main mineral C3A3·CŜ. Results of the study allow us to conclude that it is possible to obtain high-quality calcium sulphoaluminate (SAC) based on technogenic aluminate raw material.

Isobord's Geographic Information System Solution

2011 ◽  
pp. 343-357
Author(s):  
Derrick J. Neufeld ◽  
Scott Griffith
Keyword(s):  
Information Technology ◽  
Information System ◽  
Geographic Information ◽  
Raw Material ◽  
Time Constraints ◽  
High Quality ◽  
System Solution ◽  
Relational Database Management ◽  
Relational Database Management Systems

This chapter presents a case study of Isobord1, a Canadian manufacturer of high quality particleboard that uses straw instead of wood as the main raw material input. Isobord is facing critical operational problems that threaten its future. Gary Schmeichel, a biotechnology consultant hired by Isobord, must recommend how much straw collection equipment to purchase and what kind of information technology to acquire to help manage equipment dispatch operations. Schmeichel is exploring how geographic information systems (GIS) and relational database management systems (RDBMS) might help manage operations, but budget and time constraints and organizational inexperience seriously threaten these efforts. Decisions must be made immediately if there is to be any hope of implementing a system to manage the first year’s straw harvest. Readers are challenged to put themselves in Schmeichel’s shoes and prepare recommendations for Isobord.

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