INTRODUCTION. Coca-Cola (often referred to simply as Coke) is a carbonated soft drink produced by The Coca-Cola Company of Atlanta, Georgia.Originally intended as a patent medicine when it was invented in the late 19th century by John Pemberton, Coca-Cola was bought out by businessman Asa Griggs Candler, whose marketing tactics led Coke to its …
WhatsApp: +86 18221755073
In particular, we study how the effectiveness of flotation depends on the sequence of microbubble supply to the flotation chamber. Microbubbles are generated by the …
WhatsApp: +86 18221755073
The efficiency of the coal flotation process in separating fine particles is primarily influenced by the type of reagent selected. The efforts made for improved recovery of …
WhatsApp: +86 18221755073
Froth flotation technique is generally adopted in coal industry for processing of coal fines and ultrafines, and the extent of fineness is dependent on the flotation methodology deployed since...
WhatsApp: +86 18221755073
This study investigated the feasibility of employing an electro-flotation-oxidation process that employs a pair of boron-doped diamond (BDD) and aluminum (Al) electrodes for electrochemical harvesting of green microalgae (Scenedesmus quadricauda) and treatment of residual pollutants in coke effluent, following an algal-bacterial process.Electro-coagulation …
WhatsApp: +86 18221755073
PDF | A tremendous amount of research has been done on refining the flotation process for iron ore and designing the reagents which go into it. This... | Find, read and cite all the research you ...
WhatsApp: +86 18221755073
A low-ash, semi-coke technology, applied in flotation, solid separation, etc., can solve the problems that affect the processing and utilization of semi-coke, the increase of ash content, etc., and achieve the effect of reducing the dosage of chemicals and improving the flotation effect
WhatsApp: +86 18221755073
Liu et al. (2011) applied microbubble using air, oxygen and ozone to compare their pretreatment effectiveness in coagulation flotation process of coke wastewater. They confirmed that the ...
WhatsApp: +86 18221755073
Abstract The flotation of coal with different ash content when using Sinterol modifier is studied. If the modifier consumption is 1.0–3.0 g/t of coal fines, the extraction of the coal's combustible mass in the concentrate is increased; the selectivity of the process is increased; and the loss of the coal's organic mass with the flotation wastes is decreased. The …
WhatsApp: +86 18221755073
Blast furnace (BF) process: Sinter and pellets are mixed with coke in the blast furnace to produce pig iron through a reduction reaction. The slag can be used in cement and road construction. Direct reduced iron (DRI) process: Natural gas or hydrogen reduces ore at low-to-medium temperatures to produce sponge iron.
WhatsApp: +86 18221755073
We consider the initial flotation feed at Belovskaya enrichment facility (ash content 47.15%) and the ini-tial flotation feed at Chertinskaya-Koksovaya enrich-ment facility (ash content 36.7%). Table 1 presents the results of screen analysis for the Belovskaya coal fines. We see that, in the initial flotation feed, the mineral components are ...
WhatsApp: +86 18221755073
Mass balance of rougherrscavenger coke flotation and one stage of cleaning flotation of deeironed Waelz clinker (New : Aged = 2 : 1) Figures - uploaded by Biserka Lucheva Author content
WhatsApp: +86 18221755073
The invention discloses a kind of low ash content semi-coke and its wet flotation technique, the wet flotation technique of the low ash content semi-coke is comprised the following steps：(1) semi-coke is crushed, is crossed 32 mesh sieves；(2) semi-coke for crossing 32 mesh sieves is mixed with water, obtains ore pulp, regulation pulp density is 50 80g/L；(3) ore pulp is carried …
WhatsApp: +86 18221755073
In our research, we employ froth flotation using MTA collector, KOBS frothing agent, DK-80 acety-lene reagent as an alternative collector, and Sinterol flotation modifier. An experimental …
WhatsApp: +86 18221755073
2.4 Flotation process. Flotation is a gravity separation process in which air or gas bubbles are used to carry the suspended matter to the top of a liquid surface where they can be collected by skimming process (Singh et al., 2011).Due to low density and self-float characteristics of some micro-algal species this method can be comparatively fast and more effective compared to …
WhatsApp: +86 18221755073
Abstract The influence of the pulp density and the consumption of collection agent, frothing agent, and air on the flotation of coal fines at OAO MMK-Ugol is studied by means of a factorial experiment. First-order regression equations are derived. The response functions selected are the extraction of flammable mass in the concentrate; and the selectivity of the …
WhatsApp: +86 18221755073
The flotation fractions of a long-flame coal were obtained by heavy medium separation method, and its effect on regulation of sulfur and coke reactivity during pyrolysis of high-sulfur coking coal were investigated by FT-IR, Raman, TG, Gieseler fluidity, N 2 adsorption, XRD. The results show that the low density fractions contain more aliphatic side chains and …
WhatsApp: +86 18221755073
In coking wastewater before biological treatment, due to the organic pollution, the flotation process of coke powder could be strengthened, and the reagent dosage was low. The flotation recovery rate of coke powder under optimal condition is 93.04%. In addition, the coke powder also shows a good flotation separation yield without frother.
WhatsApp: +86 18221755073
Abstract The action of inorganic reagents in coal flotation is analyzed, with a view to improving enrichment. Sulfates of calcium, magnesium, and iron most likely act by diminishing the hydration of coal particles as a result of the surface adsorption of cations. The positive influence of a natural salt solution consisting primarily of NaCl on coal flotation is analyzed: …
WhatsApp: +86 18221755073
Multi- Flotation of Egyptian petroleum coke 29 stage addition of the surfactant, in four steps rather than one, improved further the efficiency of the flotation process by increasing the yield of the final concentrate to about 93.1 wt% without affecting its grade. • 4-phenyl dodecyl benzene sulphonate showed a high selectivity in the ...
WhatsApp: +86 18221755073
BACKGROUND: Comparison experiments were carried out with three kinds of micro-bubbles on the coagulation flotation process treatment of coke waste-water under optimum coagulation conditions obtained from zeta potential measurement. RESULTS: Micro-bubble flotation with ozone showed the best performance. The ozone micro-bubbles exhibited high ...
WhatsApp: +86 18221755073
The saturation of water with oxygen has the following effects on the flotation characteristics: decrease in basicity of the concentrates in comparison with the initial coal by a factor of 1.7 for the 0.25 mm class, 2.86 for the 0.125 mm class, and most notably 3.5 for the 0.16 mm class ().The concentrate yield γ co and the extraction E cm of combustible mass in the …
WhatsApp: +86 18221755073
The invention relates to a semi-coke wet flotation process. The process comprises the steps that first, semi-coke is crushed to enable the particle size to be below 0.5 mm, and then size mixing dosing and a flotation experiment are conducted in a flotation tank. In the flotation experiment process, the pH value of ore pulp liquid is adjusted or a certain amount of surface modification …
WhatsApp: +86 18221755073
The effect of different types of micro-bubbles on the performance of the coagulation flotation process for coke waste-water. Shu Liu, Shu Liu. Department of Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China. Search for more papers by this author. Qunhui Wang,
WhatsApp: +86 18221755073
DOI: 10.1016/J.ALGAL.2017.06.012 Corpus ID: 90523739; Evaluation of an electro-flotation-oxidation process for harvesting bio-flocculated algal biomass and simultaneous treatment of residual pollutants in coke wastewater following an algal-bacterial process
WhatsApp: +86 18221755073
The selective separation of hydrophobic coal particles from hydrophilic gangue minerals by froth flotation dates back to the 1920s. Prior to this, commercial applications of froth flotation were limited only to ores and minerals finer than 100 µm in size (Nguyen and Schulze, 2003).In coal flotation, particles finer than 500 µm are commonly employed due to their natural …
WhatsApp: +86 18221755073
pertain to coal flotation. The coefficient of separation (CS), representing process efficiency, in the range of 31%–73% indicates that fine coal particles do not float easily. It is worth to mention that comparable process efficiency was obtained for the ASH and other flotation equipment, but the flotation time for the ASH was many times shorter.
WhatsApp: +86 18221755073
When coke flotation prevails in the sloping flues (F/M > 1), the coke particles will be carried over along the flue, which increases the probability of choking and a drop in the boiler's inlet pressure eventually.
WhatsApp: +86 18221755073
Flotation of Egyptian petroleum coke using 4-phenyl dodecyl benzene
WhatsApp: +86 18221755073
The basic property of the lignite and its pyrolysis products were studied by proximate and ultimate analysis. The effect of collector types on the flotation performance of semi-coke was studied. The results showed that collector consumption of semi-coke was much higher when compared with coking coals due to the larger surface area and a large amount of oxygen …
WhatsApp: +86 18221755073
Analyze the differences in the effects of H 2 O and CO 2 on coke pores at a 3D scale. Analyze the interface behavior between slag and coke after reacting with H 2 O and CO …
WhatsApp: +86 18221755073
Steel Production and Energy. Matthias Ruth, in Encyclopedia of Energy, 2004. 4.2 Coke Production. Coals suitable for coking are ground and blended before use as charge in so-called by-product coke ovens, which derive their name from the fact that during the coking process byproducts, such as light oils, tar, ammonia, and coke oven gas, are recovered for use …
WhatsApp: +86 18221755073
An object of this invention is to provide a process for the separation of suspensions and from the tar, ammonia liquor and condensate mixture obtained when coking finely ground pre-dried or preheated coal without considerable additional expenditures and consumption of energy and chemicals, and to obtain a tar phase and a liquid phase, so that the liquid phase can be …
WhatsApp: +86 18221755073
The oil flotation behaviour of emulsifiable oil was studied using N-octyl-N-benzyl-N-methylglycine (OBM) as the collector and heavy alkylate naphthalene sulphonates (HNS) as the de-emulsifier.
WhatsApp: +86 18221755073
To produce quality metallurgical coke, a high-temperature carbonization process is used. High-temperature carbonization, which takes place above 900°C (1650°F), involves chemical …
WhatsApp: +86 18221755073
98/00815 Flotation of fine coke particles from fly ash. Jan Hupka ...
WhatsApp: +86 18221755073
Flotation of Egyptian petroleum coke using 4-phenyl dodecyl benzene (PDF) Flotation of Egyptian petroleum coke using 4-phenyl dodecyl benzene | Ahmed Ali Omar - Academia.edu Academia.edu no longer supports Internet Explorer.
WhatsApp: +86 18221755073
Abstract The properties of fine coal slurries at OOO MMK-Ugol and their flotation are studied. To improve the flotation of finely disperse coal slurries, more effective reagent combinations are employed; TPA collection agent and Sinterol flocculant are considered. In the laboratory, optimal flotation conditions are developed for fine coal slurries. In these conditions, …
WhatsApp: +86 18221755073