Research of Short-Flow-Route Processes for Magnesium Alloys Prepared by Crystalline Magnesium

2011 ◽  
Vol 686 ◽  
pp. 1-5
Author(s):  
Wei Hong Li ◽  
Yuan Sheng Yang ◽  
Chang Wen Tian ◽  
Shou Qiu Tang ◽  
Ji Xue Zhou ◽  
...  
Keyword(s):  
Magnesium Alloys ◽  
Raw Materials ◽  
No Oxidation ◽  
Raw Material ◽  
Process Technology ◽  
High Quality ◽  
Inclusion Content ◽  
Evaporation Loss ◽  
New Process ◽  
Common Problems

Long route and high inclusion content are two common problems existing in the present process for magnesium alloys. To solve these problems, a new process technology, in which the crystalline magnesium is used as the raw material, is developed. The process is melting flux→ adding raw materials in batches → stirring→ holding→ pouring (MASHP). The mechanisms of protection and purification mechanisms are also analyzed. The results show that the MASHP process has high protection and purification effects on magnesium alloys. By the in-batches addition mode of raw materials, no oxidation and evaporation loss of magnesium produce during heating and melting, and the inclusions that self-contained in the crystalline magnesium and that produced by oxidation during heating and melting can be minimized. High quality magnesium alloys can be produced by the new process.

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.

scholarly journals Selection of Fish Raw Material Suppliers by Integrating ANP and Topsis Methods in CV. Riki Utama Mandiri

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Aula Fajar Iman Sakti ◽  
Wiwik Sulistiyowati
Keyword(s):  
Supplier Selection ◽  
Raw Materials ◽  
Rank Order ◽  
Raw Material ◽  
Network Process ◽  
The Common ◽  
Common Problems ◽  
Frozen Fish ◽  
A Company ◽  
Selection Of

CV. Riki Utama Mandiri is a company in distributing an economic fish frozen product. This company distributed any kind of retail and wholesaler, both domestic and export. They distributing many frozen fish products variant such as Patin Fillet and Shark Fin. The all raw materials of those frozen seafood was obtained by three different suppliers. The common problems found in CV. Riki Utama Mandiri mostly about raw patin fish supplier which often committed delivery delays.  The purpose of this research is to fixing the supply chain management in deciding the more accurate selections of raw materials supplier. To overcome the common problems that happen. Analytical network process (ANP) will simplify the criteria weight values and sub criteria of each supplier. Meanwhile, technique for others reference by similarity to ideal solution (TOPSIS) method is used for giving a rank order of the alternative supplier. This research is expected for being a consideration for the company in obtaining a good and more effective kind of raw supplier. We also expecting the company for tighten supplier selection more effective way so that it can fullfilled the existing standard. Also to overcome the common problems such as delivery delays, competing raw materials with uncertain quality, and difficulty in sort out the raw materials due to size issues.

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.

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.

Microbiological and Sensory Suitability of a Novel Raw Material from Porcine Blood and Collagenous Rind Protein as an Ingredient in a Fermented Raw Salami-Type Sausage

2009 ◽  
Vol 72 (4) ◽  
pp. 826-836 ◽  
Author(s):  
BERNHARD NOWAK ◽  
THEDA von MUEFFLING
Keyword(s):  
Raw Materials ◽  
Meat Product ◽  
Raw Material ◽  
High Quality ◽  
B Values ◽  
Porcine Blood ◽  
Quality Product ◽  
Plate Counts ◽  
By Products ◽  
High Quality Product

The aim of this investigation was to develop a treatment for combined porcine blood corpuscle concentrate (BCC) and porcine collagenous connective tissue (rind) so as to make more use of these slaughter by-products as an ingredient in a high-quality product such as salami-type sausage. For this study, BCC was preserved, standardized (sBCC) (15% NaCl and 25% protein content), and then added (proportion of sBCC to rind, 15:85) to rind subjected to different treatments designated A, B, and C (A, 2 h at 90°C; B, 5 min at 90°C; and C, 2 h at 3°C). One half of each mixture was again heated (designated A1, B1, and C1; F70, ∼15), and the other half was only cooled (designated A2, B2, and C2). The now colored, highly proteinaceous rind mixtures (A1 to C2) were then cooled and granulated (designated GBR-A1 to GBR-C2). Three of the granulates (GBRA1, -B1, and -B2) proved to be promising new raw materials: their aerobic plate counts were <log 4.0 CFU/g, and their color was appealing (L* values, 23.9 to 25.9; a* values, 17.7 to 22.2; b* values, 11.5 to 12.7). These granulates were then substituted for part (5%) of the meat in the production of fermented raw salami-type sausages. Two of the sausages (SA1 and SB1) were microbiologically stable (containing mainly lactobacilli) and had positive sensory, chemical, and physical properties (e.g., protein, 21%; water activity, 0.90; pH, between 5.3 and 5.4 on day 36) meeting all standards for commercially produced raw sausages. Our investigation yielded a practicable way to treat and combine two slaughter by-products for use in a high-quality meat product.

Raw-Material Availability and the Organization of Technology

1994 ◽  
Vol 59 (1) ◽  
pp. 21-34 ◽  
Author(s):  
William Andrefsky
Keyword(s):  
Production Technology ◽  
Raw Materials ◽  
Poor Quality ◽  
Important Variable ◽  
Raw Material ◽  
Stone Tool ◽  
High Quality ◽  
Formal Tool ◽  
Lithic Raw Materials ◽  
Tool Types

Ethnographic examples of stone-tool makers in Australia and archaeological examples from three different areas in the western United States indicate that the availability of lithic raw materials is an important variable conditioning stone-tool production technology. Attributes of availability such as abundance and quality of lithic raw materials condition the production of formal- vs. informal-tool types. Poor-quality raw materials tend to be manufactured into informal-tool designs. High-quality lithic raw materials tend to be manufactured into formal-tool designs when such materials occur in low abundance. When high-quality materials occur in great abundance both formal- and informal-tool designs are manufactured. Other factors, such as residential mobility or sedentism, are found to be less-important determinates of lithic-production technology.

scholarly journals Monitoring of resource-efficient provision of Ukrainian dairy processing enterprises with high-quality raw milk on the basis of international requirements

2021 ◽  
Vol 915 (1) ◽  
pp. 012030
Author(s):  
N Kushnir ◽  
A Ventsuryk ◽  
A Zhemba ◽  
D Tsaruk
Keyword(s):  
Raw Materials ◽  
Hazard Analysis ◽  
Raw Milk ◽  
Production Costs ◽  
Raw Material ◽  
High Quality ◽  
Milk Processing ◽  
Critical Control Points ◽  
Key Factor ◽  
Definition Of

Abstract The article provides information on the main problems of development of dairy enterprises in Ukraine on the criteria of sustainable development and taking into account the vector of the European integration course of the country. The level of providing milk processing enterprises with the quality of raw milk is analyzed. The main trends in the supply of raw milk from agricultural enterprises and households of Ukraine by varieties are presented and analyzed. The dynamics of milk supply and its price are also presented. It is established that the use of quality raw milk directly affects the efficiency of milk processing enterprises. Important aspects of quality control of raw dairy products at enterprises are outlined. High-quality dairy production and reduction of production costs are impossible without the functioning of the raw material quality monitoring system. To this end, it is necessary to introduce the principles of hazard analysis and critical control points in the management structure of dairy companies. It is proved that the key factor of global economic development is the state of the environment, so monitoring the supply of milk - raw materials should also be accompanied by the definition of a set of resource efficiency indicators.

scholarly journals KAJIAN TEKNOLOGI PROSES PEMBUATAN GAS SINTETIK DARI BATUBARA DAN PROSPEK PEMANFAATAN PADA INDUSTRI HILIRNYA = TECHNOLOGY REVIEW PROCESS OF SYNTHETIC GAS FROM COAL UTILIZATION AND PROSPECT IN DOWNSTREAM INDUSTRIES

2016 ◽  
Vol 10 (1) ◽  
pp. 61-70
Author(s):  
Muslim Efendi Harahap ◽  
Endro Wahju Tjahjono
Keyword(s):  
Natural Gas ◽  
Fluidized Bed ◽  
Chemical Industry ◽  
Raw Materials ◽  
Fixed Bed ◽  
Raw Material ◽  
Process Technology ◽  
Synthetic Gas ◽  
Fluidized Bed Gasifier ◽  
Coal Reserves

AbstractPotential coal reserves in Indonesia are very abundant, but which became the key issue is the utilization in Indonesia is still not optimal. One alternative to use the coal is by converting it into synthetic gas (syngas), containing primarily hydrogen (H2) and Carbon Monoxide (CO). To create synthetic gas from coal there are 4 kinds of process technology known in the world, i.e. Fixed-bed gasifier, Fluidized-bed gasifier, Entrained-bed gasifier and Molten bath gasifier. There are 3 types of chemical industry to take advantage of this synthetic gas as an alternative of their raw materials i.e., methanol, formic acid and ammonia industry. Currently they use natural gas as raw material. The more widespread use of natural gas for a variety of needs can disrupt the natural gas supply for these industries in the future. Therefore, this synthetic gas can be used as an alternative of raw material supply for these three types of chemical industry in the future. AbstrakPotensi cadangan batubara di Indonesia sangat melimpah, namun yang menjadi isu utama adalah pemanfaatannya di Indonesia masih belum optimal. Salah satu alternatif pemanfaatan batubara tersebut adalah dengan mengkonversi batubara tersebut menjadi gas sintetik (syngas) yang kandungan utamanya adalah Hidrogen (H2) dan Karbon Monoksida (CO). Untuk membuat gas sintetik dari batubara ini ada 4 macam teknologi proses yang telah dikenal di dunia yaitu Fixed-bed gasifier, Fluidized-bed gasifier, Entrained-bed gasifier dan Molten bath gasifier. Ada 3 jenis industri kimia yang dapat memanfaatkan gas sintetik ini sebagai alternatif bahan bakunya yaitu industri metanol, industri asam formiat dan industri amonia. Saat ini mereka menggunakan gas alam sebagai bahan bakunya. Semakin meluasnya penggunaan gas alam untuk berbagai macam kebutuhan dapat menyebabkan pasokan gas alam untuk ketiga jenis industri ini terganggu di kemudian hari. Oleh karena itu gas sintetik ini dapat dimanfaatkan sebagai alternatif pasokan bahan baku untuk ketiga jenis industri kimia tersebut kedepannya.

scholarly journals HYDRO ISOLATION MATERIALS, LUMINOPHORE AND OTHER DEFICIENT PRODUCTS, INNOVATIVE TECHNOLOGY

World Science ◽  
2018 ◽  
Vol 1 (12(40)) ◽  
pp. 46-48
Author(s):  
Guram Khitiri ◽  
Ioseb Chikvaidze ◽  
Raul Kokilashvili ◽  
Tinatin Gabunia ◽  
Madona Tsurtsumia
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Innovative Technology ◽  
High Melting ◽  
Operating Characteristics ◽  
High Quality ◽  
High Quantum Efficiency ◽  
Greenish Yellow ◽  
Quality Water ◽  
Water Proofing

One of the main objectives of the project is to develop a methodology for obtaining high quality water-proofing materials. The above- mentioned high-melting tar mass will be used as the main raw material. Especial treatment and further homogenization of the mass – mixture of high-dispersive quartz sand, silicates and other wastes – gives possibility to make various universal and inexpensive compositions. With the aim to improve hydro-insulating and other specific characteristics of the compositions they will be varied by changing the ratio of ingredients. The elasticity of these compositions is conditioned by macromolecular paraffin-ceresin and the polymeric (rubber) components; varying the strength and adhesion is possible by soluble and insoluble silicate-quartz components. The mentioned components can be got in a large amount in region. Therefore, products obtained from cheap raw materials will be inexpensive. The use of the mentioned waste is also important to avoid the pollution of nature. Operating characteristics of the proposed luminophore satisfy requirements of international standarts. In particular, the solutions made from it have an ability to detect invisible cracks of the thick < 1 mm. The light intensity in its greenish-yellow area is 4,5-5 times more than that of standard - uranyl nitrate. It is stable with high quantum efficiency (40-45%).

Impact of Raw Material Quality on Performance of Mixing and Charging Machines in Drilling and Blasting Operations

2021 ◽  
pp. 69-73
Author(s):  
T.S. Morozova
Keyword(s):  
Diesel Fuel ◽  
Raw Materials ◽  
Raw Material ◽  
Production Facility ◽  
High Quality ◽  
Equipment Failures ◽  
Hazardous Production ◽  
Materials Used ◽  
Incoming Inspection

A study into the failure causes of mixing and charging equipment confirms that the main impact on the probability of accidents is the use of raw materials that do not meet the specifications and have unstable properties. The raw materials used for explosives preparation in mechanized charging of boreholes include such components as ammonium nitrate, emulsion phase, diesel fuel, emulsifier and others. The paper describes the application of various formulations with these components in specific types of mixing and charging machines manufactured by AZOTTECH LLC. The main properties that affect the quality of raw materials are summarised, and the incoming inspection of explosive components is described as part of the acceptance procedure at temporary storage sites at a hazardous production facility. The paper describes common types of equipment failures and maintenance procedures when using substandard raw materials. The conclusion highlights the key practices to improve the equipment uptime as well as recommendations for incoming inspection and the use of high-quality explosive components.

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