Results 71 to 80 of about 6,482,080 (294)
Optimización de parámetros para la extracción de elementos desde minerales en medios ácido [PDF]
, 2020 [SPA] Esta tesis doctoral se presenta bajo la modalidad de compendio de publicaciones. Actualmente, la gran minería del cobre chilena se encuentra frente a nuevos problemas y desafíos a superar.
Toro Villarroel, Norman Rodrigo
core +2 more sources
THE SULFURIC ACID RESISTANCE OF CONCRETE WITH BLAST FURNACE SLAG [PDF]
, 2013 The deterioration of concrete by sulfuric acid attack in sewage environments has become a serious problem. In this study, it was shown that the resistance to sulfuric acid of mortar and concrete can be improved by using a blast-furnace slag fine ...
AYANO, Toshiki +3 more
core
Recycling of waste engine oils using a new washing agent [PDF]
, 2013 This paper addresses recycling of waste engine oils treated using acetic acid. A recycling process was developed which eventually led to comparable results with some of the conventional methods.
Hamawand, Ihsan +2 more
core +5 more sources
Journal of Chemical Engineering Research ProgressSulfuric acid is a strong mineral acid and is useful for processing mineral ores, chemical synthesis, waste water processing, and others. The increasing need for sulfuric acid is not balanced with the amount of sulfuric acid production due to the use of ...
Dian Putri Andini +2 more
doaj +1 more source
Nuclear Engineering and Technology, 2014 In this study, we proposed a newly designed sulfuric acid transfer system for the sulfur-iodine (SI) thermochemical cycle. The proposed sulfuric acid transfer system was evaluated using a computational fluid dynamics (CFD) analysis for investigating ...
JUNG-SIK CHOI +4 more
doaj +1 more source
THE ETHYL-SULFURIC ACID REACTION. [PDF]
Journal of the American Chemical Society, 1917 n ...
Evans, P. N., Albertson, J. M.
openaire +2 more sources
Synergic Acid Leaching of Vanadium from Sodium Vanadium Extraction Tailings
Kuangchan zonghe liyongThe content of V2O5 in sodium vanadium extraction tailings is much higher than that in vanadium-titanium magnetite concentrate and it has high utilization value.
Fangfang LI +5 more
doaj +1 more source
Intumescent composition, foamed product prepared therewith and process for making same [PDF]
, 1974 An intumescent composition and the foamed product prepared by heating the composition are provided. The composition comprises the reaction product of para-benzoquinone dioxime and a concentrated mineral acid such as sulfuric acid, phosphoric acid, and ...
Parker, J. A., Riccitiello, S. R.
core +1 more source
Indonesian Journal of Chemistry, 2010 The synthesis and characterization of iron oxide-montmorillonite and its structural stability test with various concentration of sulfuric acid were conducted. Synthesis was performed by treating Na-montmorillonite clay with oligocations of iron, followed
Karna Wijaya +4 more
doaj +1 more source
A novel enzymatic approach to nanocrystalline cellulose preparation [PDF]
, 2018 In this work, conditions for an enzymatic pretreatment prior to NCC isolation from cotton linter were assessed. Different cellulase doses and reaction times were studied within an experimental design and NCC were obtained. At optimal enzymatic conditions
Beltramino, Facundo +3 more
core +2 more sources