EPB1 EPA EPB1 EP B1 EP B1 EP B1 EP A EP A EP A EP B1 EP B1 EP B1 Authority EP European Patent Office Prior art keywords ore slurry grinding mineral mineral ore Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
Hydrolyzed starches as grinding aids for mineral ore processing (51) International Patent Classification(s) B03D 1/01 () C22B 15/00 () C22B 1/00 () (21) Application No: (22) Date of Filing: ... HYDROLYZED STARCHES AS GRINDING AIDS FOR MINERAL ORE PROCESSING [0001] This application claims the benefit of ...
The grinding aid compositions are typically added to various mineral ore slurries prior to grinding operations to affect the rheology characteristics of the mineral ore slurries. Grinding aid compositions comprising hydrolyzed starches, such as dextrin, maltodextrin or corn syrup solids.
Cement mineral grinding aids . Grinding aids Quality improvers In the world practice of cement grinding and other solids for more than 60 years the theory Adsorption related strength decrease of solids has dominated this theory is formulated in 1928 by Soviet scientist Peter Alexandrovich Rehbinder
WOA1 chemical patent summary.
a technology of hydrolyzed starch and mineral ore, which is applied in the direction of coatings, grain treatments, adhesives, etc., can solve the problems of inefficient grinding stage of mineral ore, high energy consumption of mineral ore, etc., and achieves the effects of reducing downtime, increasing capacity and throughput of mineral ore, and shortening time periods
The electric power consumption by this process run on ore mining and processing enterprises is variously estimated as a value from 5 to 20% of overall world electric power. The objective of this ...
The SiO(OH) 3 − hydrolyzed by sodium silicate adsorbs on the surface of muscovite, which leads to the dispersion of muscovite pulp, and thus improves the grinding effect. This study has some reference significance for improving the production efficiency of muscovite powder and the application of grinding aids.
The grinding aid compositions are typically added to various mineral ore slurries prior to grinding operations to affect the rheology characteristics of the mineral ore slurries. Grinding aid compositions comprising hydrolyzed starches, such as dextrin, maltodextrin or corn syrup solids.
The use of grinding aids in the cement industry to improve the grindability and product throughput of the cement clinker dates to 1930 . Most grinding aids are organic liquids, such as triethanol amine, glycerol, alcohols, propylene glycol, organosilicones, diethylene glycol, and resins, etc. [27,81].
Acid Hydrolysis of Starch. Mineral acids like sulphuric or hydrochloric acids are used in treating starch to obtain acidhydrolyzed starch. This process of acidhydrolysis of starch results in the depolymerization of the starch polymer (De siqueira et al., 2017).Acidhydrolysis of starch is performed to remove fatty substances from native starch and improve the starch's physical and ...
The grinding aid compositions are typically added to various mineral ore slurries prior to grinding operations to affect the rheology characteristics of the mineral ore slurries. Grinding aid compositions comprising hydrolyzed starches, such as dextrin, maltodextrin or corn syrup solids.
In this paper, different doses of sodium hexametaphosphate (SHMP) were added as grinding aids in the process of muscovite grinding, and the effect of SHMP on the grinding efficiency of muscovite was studied. The grinding experiment results show that the grinding efficiency increases significantly with the increase in SHMP dosage. The mechanism of SHMP improving the grinding efficiency of ...
Fig. 3, Fig. 4 illustrate that adding grinding aid sodium silicate, the D 90 particle size of muscovite product decreases, −10 μm and −20 μm particle content increases. When sodium silicate was not added for grinding, the particle size of muscovite product D 90 was μm. When the dosage of sodium silicate was %, the D 90 particle size of the muscovite product decreased to ...
EP B1 HYDROLYZED STARCHES AS GRINDING AIDS FOR MINERAL ORE PROCESSING [origin: USA1] Grinding aid compositions comprising hydrolyzed starches, such as dextrin, maltodextrin or corn syrup solids. The grinding aid compositions are typically added to various mineral ore slurries prior to grinding operations to affect the rheology characteristics of the ...
Herein, hydrogels based on starch from corn, sweet cassava and bitter cassava were prepared by a straightforward approach. The hydrogels were obtained by an oxidation process using the redox system KMnO 4 /NaHSO 3 which leads to the formation of carbonyl and carboxyl groups with minimum polymer hydrolysis. The resulting oxidized samples as well as the native starches were extensively ...
It has been estimated that grinding consumes up to 4% of global electrical energy and accounts for more than 50% of the total energy used in mining operations. In addition, more than 90% of the total energy supplied in beneficiation plants is dissipated as heat, kinetic energy, noise, and inefficient breakage of ores/raw material.
2020 (English) In: Journal of Materials Research and Technology, ISSN, Vol. 9, no 4, p. Article, review/survey (Refereed) Published Abstract [en] Grinding aids (GAs) have been an important advent in the comminution circuits. Over the last few decades, in order to address the high energy consumption and scarcity of potable water for mineral processing, chemical additives ...
Grinding plays an important role in mining, construction, metallurgy, chemical, coal and other basic industries. In terms of beneficiation, grinding is the most energy consuming operation. So, reasonable grinding conditions according to the properties of ores is the key to obtain good grinding results and reduce energy consumption and resource waste. In this paper, Tongkeng and Gaofeng ...
Mineral Processing. Mineral processing is the process in which chemical or physical methods are used to separate the useful minerals in the ore from the useless minerals (usually called gangue) or hazardous minerals, or to separate multiple useful minerals. In the early years, mineral processing was called mineral concentration or mineral ...
The grinding aid compositions are typically added to various mineral ore slurries prior to grinding operations to affect the rheology characteristics of the mineral ore slurries. Grinding aid compositions comprising hydrolyzed starches, such as dextrin, maltodextrin or corn syrup solids.
For dry grinding, the high energy consumption remains the major problem coupled with low throughputs. This necessitates energyefficient technologies and strategies. As such, the use of additives (grinding aids) in mineral processing can be considered as a promising alternative for reducing energy consumption.
Grinding is an indispensable step in mineral processing to reduce particles' size and liberate minerals before they are subjected to further separation processes. Grinding is characterized by high energy consumption and low energy efficiency (~ 1%) (Cheng et al. 2019; Liu et al. 1989; NapierMunn 2015).
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