Prospects for the Use of the Sorbent for Purification of Gases from Sulfur-Containing Components on the Basis of Manganese Ore

2020 ◽  
Vol 836 ◽  
pp. 13-18 ◽  
Author(s):  
Victor A. Bolotov ◽  
Olga V. Cheremisina ◽  
Maria A. Ponomareva ◽  
Daria A. Alferova

The physical and chemical properties of "loose" manganese ore of Ulu-Telyak Deposit of the Republic of Bashkortostan for the possibility of its use as an effective sorbent for purification of exhaust gases of metallurgical, chemical, oil refining, mining and other industries are studied. Analyses were carried out on the phase composition, chemical composition, determined the specific surface area of the pores and thermogravimetric method of water content. The process of sorption of a gas mixture containing hydrogen sulfide, methyl and ethyl mercaptans was also studied. The results of the experiments concluded that the prospects of using this "loose" manganese ore for the sorption of sulfur-containing gases.

One of the most promising ways of recycling waste oil and oil refining industries, in particular oil sludge, is their processing into valuable building and road materials. Solving this issue can help reduce the negative impact on the environment, rational use of natural resources and improve the state's economy. In this regard, it is important to conduct research on the physical and chemical properties and thermal characteristics of oil sludge samples taken under the conditions of Pavlodar Petrochemical Plant LLP, which was the purpose of this work.


2021 ◽  
Vol 73 (1) ◽  
pp. 63-69
Author(s):  
S. S. Satayeva ◽  
◽  
K.A. Mikhailova ◽  

The most urgent in the oil refining industry, along with the deepening of oil refining, are the problems of improving the quality of oil products, which include heavy oil residues, such as bitumen. Despite the widespread use of petroleum bitumen in road construction, the demand for bitumen is not fully satisfied, because the quality of many bituminous materials does not fully meet the modern requirements of the construction industry.Conformance of bitumen obtained by synthetic method for using it in road construction was reviewed in this article. Some main physical and chemical properties of bitumen were described. Received results meet with specification and we can make the conclusion that synthesized bitumen can be used for road surface.


1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.


Author(s):  
Mehmet Sarikaya ◽  
Ilhan A. Aksay

Biomimetics involves investigation of structure, function, and methods of synthesis of biological composite materials. The goal is to apply this information to the design and synthesis of materials for engineering applications.Properties of engineering materials are structure sensitive through the whole spectrum of dimensions from nanometer to macro scale. The goal in designing and processing of technological materials, therefore, is to control microstructural evolution at each of these dimensions so as to achieve predictable physical and chemical properties. Control at each successive level of dimension, however, is a major challenge as is the retention of integrity between successive levels. Engineering materials are rarely fabricated to achieve more than a few of the desired properties and the synthesis techniques usually involve high temperature or low pressure conditions that are energy inefficient and environmentally damaging.In contrast to human-made materials, organisms synthesize composites whose intricate structures are more controlled at each scale and hierarchical order.


2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.


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