scholarly journals Karakalpakstan Bentonite Clays - Perspective Raw Materials for Obtaining Ceramic Heat-Insulating Materials

2020 ◽  
Vol 9 (8) ◽  
pp. 417-420
Keyword(s):  
Raw Materials ◽  
Bentonite Clay ◽  
Chemical Characteristics ◽  
Insulating Materials ◽  
The North ◽  
Physico Chemical ◽  
Bentonite Clays ◽  
Comprehensive Study

The article presents the results of a comprehensive study of bentonite clays of the North Jamansay deposit of Karakalpakstan for the production of ceramic heat-insulating materials. The possibility of using this bentonite clay as a result of studying their chemical and mineralogical, fractional compositions and physico-chemical characteristics for ceramic heat-insulating materials for various purposes has been established.

Research of benonite clays of Karakalpakstan for producing ceramic heat-insulating materials

2020 ◽  
pp. 3-5
Author(s):  
Z. R. Kadyrova ◽  
A. P. Purkhanatdinov ◽  
Sh. M. Niyazova
Keyword(s):  
Thermal Insulation ◽  
Bentonite Clay ◽  
Physicochemical Characteristics ◽  
Insulating Materials ◽  
Insulation Materials ◽  
The North ◽  
Bentonite Clays ◽  
Comprehensive Study

The results of a comprehensive study of bentonite clays of the North-Dzhamansay deposit of Karakalpakstan to obtain ceramic thermal insulation materials are presented. According to the chemical-mineral and fractional compositions, as well as the physicochemical characteristics of bentonite clay, the possibility of its use in the production of ceramic thermal insulation materials for various purposes has been established.

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.

scholarly journals Bentonite clays of Russia and neighboring countries

Georesursy ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 79-90 ◽  
Author(s):  
Peter E. Belousov ◽  
Victoria V. Krupskaya
Keyword(s):  
Mineral Resource ◽  
Raw Materials ◽  
Bentonite Clay ◽  
Natural Material ◽  
Resource Base ◽  
The Past ◽  
Clay Deposits ◽  
Tectonic Position ◽  
Bentonite Clays ◽  
Cis Countries

Bentonite clay is an important natural material, widely used in many industries. The purpose of this article is to analyze the mineral resource base of bentonite clays in Russia. The data on reserves of deposits, the degree of their development and production volumes are given. The composition and uses of the main developed deposits of bentonite clay in Russia are characterized. A comparative analysis of the reserves and production growth of bentonite over the past decade is carried out. A brief description of the world situation is given, and the mineral resource base of the CIS countries is considered. Since the quality of raw materials, its properties and reserves directly depend on the conditions of origin, a characteristic of the geological and tectonic position and genesis of the bentonite clay deposits of Russia is given. Bentonite-bearing provinces with favorable conditions for the formation of bentonite deposits with volcanogenic-sedimentary genesis are considered. The most promising regions are proposed for the purposes of expanding the mineral resource base of bentonite materials. This work is the result of the authors’ own geological works at various deposits of bentonite clays in Russia, the near and far abroad, as well as the study and interpretation of published materials on this subject over the past decades.

scholarly journals Desempenho reológico e de filtração de fluidos de perfuração base óleo preparados com argilas bentoníticas provenientes do município de Boa Vista-PB

2020 ◽  
Vol 1 (51) ◽  
pp. 22
Author(s):  
Carlos Magno Rocha Almeida Souto ◽  
Danielly Vieira Lucena ◽  
Clarice Oliveira Da Rocha ◽  
Maria Eduarda Da Silva Barbosa ◽  
Syane Marcelle Miranda
Keyword(s):  
Rheological Properties ◽  
Bentonite Clay ◽  
Oil Industry ◽  
Drilling Fluids ◽  
Specific Chemical ◽  
Physico Chemical ◽  
Three Samples ◽  
Essential Input ◽  
Bentonite Clays ◽  
Main Consumer

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p>Bentonite clays are an essential input to the production of drilling fluids. One of the main consumer segments of bentonite clay is the oil industry, where it is used as a thixotropic agent in drilling fluids in oil wells, attributing to the fluids physical characteristics and specific chemical and rheological properties. According to Leal (2012), the physico-chemical and rheological properties must be carefully controlled so that the fluid can perform all its functions, such as cooling the drill, forming a layer of low permeability with the formation and keeping the solids in suspension, in order to ensure its good performance in drilling wells. Three samples of industrialized sodium bentonite clays from the Boa Vista-PB region were studied. For the organophilization of the clays will be used quaternary ammonium salt, the rheology was determined, and it was observed that it is possible to obtain formulations of oil-based fluid additives with clay.</p></div></div></div>

scholarly journals Environmental and Technological Problems of Rational Use of Secondary Resources for Processing Grapes

2019 ◽  
pp. 1-10
Author(s):  
M P Bakhmet ◽  
E E Ivanova ◽  
G I Kasianov ◽  
O V Kosenko ◽  
N V Magzumova ◽  
...  
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
North Caucasus ◽  
Rational Use ◽  
Mountainous Regions ◽  
The North ◽  
Organoleptic Characteristics ◽  
Physico Chemical ◽  
Processing Resources ◽  
Phenolic Substances

Rational use of grapes processing resources is among environmental problems of AIC of Republics of the North Caucasus and Krasnodar Territory. Currently, waste from grapes processing is not practically used and worsen the ecological state of environment. The research subject is a technology based on the production of cryo-powder from pulp, squeeze, seeds and grapes skin grown in the foothill and mountainous regions. The prerequisites for research were previously performed author works on related topics. The data on vacuum SHF-drying of grape raw materials and subsequent grinding in a cryomiller are given. Modes of preparation of grape raw materials and its subsequent dehydration and cryo-grinding, which provide the possibility of successful use in the dried state in the production technology of wine beverages, are proposed. The principal feature is the use of whole grapes as a raw material, with skin and seeds. Physico-chemical parameters, the content of phenolic substances and organoleptic characteristics of wine beverages made according to the traditional technology and the beverage made from grape cryo-powders are studied. A comparative assessment is made. It is established that vacuum SHF-drying contributes to better preservation of the properties of raw materials and finished products. The organoleptic assessment has shown that wine beverages developed according to the proposed technology had a more intense color and a more pronounced taste of sweetness and acid than traditional wine beverages. The advantage of this technology is the ability to transport grape cryo-powders in unregulated temperature conditions to any point close to the consumer and carry out the production of nutritional food there.

scholarly journals SEMI-INDUSTRIAL TECHNOLOGY FOR SYNTHESIS OF TETRACYANOETHYLENE

2020 ◽  
Vol 63 (6) ◽  
pp. 72-79
Author(s):  
Konstantin V. Lipin ◽  
Sergey V. Fedoseev
Keyword(s):  
Carbon Disulfide ◽  
Raw Materials ◽  
Synthesis Method ◽  
Sodium Cyanide ◽  
Reaction Mass ◽  
Technological Scheme ◽  
Chemical Characteristics ◽  
Auxiliary Equipment ◽  
Physico Chemical ◽  
Selection Of

The goal of our work is to develop a synthesis of tetracyanoethylene suitable for scaling and to design a technological scheme of the process based on it. To achieve this goal, a tetracyanoethylene synthesis method was originally developed, which consists of the following stages: obtaining sodium cyanodithioformate based on carbon disulfide and sodium cyanide using N, N-dimethylformamide as a solvent; obtaining tetracyano-1,4-dithiine by treating sodium cyanodithioformate with chlorine; obtaining tetracyanoethylene from tetracyano-1,4-dithiine by sequential interaction with sodium cyanide and chlorine. The developed method was tested in the laboratory, where it showed its suitability. Therefore, further on the base of this method, a technological scheme of the process was designed. A description of the scheme and the necessary sequence of operations are compiled. The interaction takes place in the reactors R-1, R-2, R-3. Pumps N-1–4 provided the pumping the reaction mass. Also, in the technological scheme there is an F-1 Nutsche filter for separation of the suspension. To isolate and purify the obtained tetracyanoethylene, an I-1 vacuum evaporator and a SA-1 sublimation apparatus are used. The necessary equipment was selected for the technological scheme: Р-1 reactor made of Teflon with a volume of 200 l with a stirrer and a jacket; two reactors Р-2 and Р-3 made of glass with a volume of 200 l with a stirrer and a jacket; Ф-1 Nutsche filter made of thick-walled polypropylene pipes; sublimation apparatus CA-1 continuous. The selection of the main and auxiliary equipment was carried out on the base of the chemical and physico-chemical characteristics of the reagents, technological conditions and the characteristics of the process. This method of obtaining compares favorably with the use of simple and cheap raw materials common in the chemical industry and the use of standard processing equipment.

scholarly journals Physico-chemical Characteristics and Utilization of Raw Materials for Mushroom Substrates

2010 ◽  
Vol 38 (2) ◽  
pp. 136-141 ◽  
Author(s):  
Jong-Chun Cheong ◽  
Chang-Sung Jhune ◽  
Chan-Jung Lee ◽  
Jin-A Oh
Keyword(s):  
Raw Materials ◽  
Chemical Characteristics ◽  
Physico Chemical ◽  
Characteristics And Utilization

scholarly journals Physico-chemical characteristics and therapeutic potential of Chutrun thermal springs in Shigar Valley, Gilgit-Baltistan (Pakistan)

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Naima Farhat ◽  
Shabbir Hussain ◽  
Foqia Faisal ◽  
Iqra Batool ◽  
Mafia Noreen
Keyword(s):  
Hot Springs ◽  
Therapeutic Potential ◽  
Thermal Springs ◽  
Chemical Characteristics ◽  
Mineral Contents ◽  
North West ◽  
The North ◽  
Physico Chemical ◽  
Shigar Valley ◽  
Gilgit Baltistan

AbstractCurrent studies were performed to evaluate the physico-chemical characteristics and therapeutic potential of Chutrun thermal springs located in the North-west of Shigar Valley, Gilgit-Baltistan (Pakistan). Thermal springs with different mineral contents have been used by people for bathing and health purposes since old timings. The mineral water of these springs contains elements like sodium, potassium, calcium, magnesium as chlorides, fluorides, sulphates, phosphates and bicarbonates which may be responsible for cure of various diseases. Chutrun hot springs have 7.21–7.8 pH, 40–42° C Temperature, 300–310 ppm TDS, 3.1–6.7 ppm DO, 278–285 ppm hardness, 1.62–2.42 ppm turbidity, 250–260 ppm alkalinity, 500–516 ppm conductivity, 12–18 ppm sodium, 3.8–4.1 ppm potassium, 80–82 ppm calcium, 20 ppm magnesium, 9.6–12 ppm chlorides, 3.4–3.9 fluorides, 260–282 bicarbonates and 80–85 ppm sulphates. Absence of E.Coli and faecal coliforms indicated that waters from thermal springs are free from organic wastes contaminations. Water from thermal springs of Chutrun was unsuitable for drinking purposes due to the presence of high fluoride content and also small amount of total coliforms which may be due to the presence of environmental bacteria and non-protective measures during sampling but it was found suitable for bathing and other body contact activities.

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