نتایج جستجو برای: acid washing activation
تعداد نتایج: 1135808 فیلتر نتایج به سال:
Serotonin-bonded silica was developed for specific extraction of sialic-acid-containing glycans and glycopeptides. Serotonin, coupled by reductive amination with aldehyde silica particles via its ethylamino group, has strong affinity to sialic acid in glycan chain termini. Sialylated glycans trapped on serotonin silica particles are released by washing with ammonium acetate solution, providing ...
The hot strength of coke prepared from an acid-washed lignite by briquetting-carbonization before and after CO2 gasification was, for the first time, investigated in this work. at 1000°C was higher than measured a room temperature. resulted linear decrease with reaction time. lignite-coke showed faster during gasification, compared to conventional cokes derived caking coal or non-or slightly co...
Biodiesel or known as fatty acid methyl ester (FAME), is a diesel fuel substitute derived from the transesterification reaction of triglycerides with alcohol in presence suitable catalyst. The demand for biodiesel increasing due to environmental and health awareness, well diminishing energy security. However, impurities will affect engine performance by corroding tubes damaging injectors. Commo...
in this study, the recycling possibility of residual oil fly ash (rofa) towards preparing activated carbon and its application in environmental remediation through adsorbing cu (ii) and pb (ii) ions from aqueous solutions were investigated. activated carbons were prepared using two different physical activation methods such as under steam flow at 950 0c, and combined steam and co2 flow at 850 0...
With excessive consumption of sulfide ores, using low-grade Pb-Zn mixed ores to obtain Zn has attracted more attention. Acid leaching is an effective method for recovery; however, a high concentration inorganic acid brings severe environmental issues, including acidic wastewater, contaminated soil, etc. Compared with acid, organic showed lower acidity and toxicity. Herein, we applied recovery f...
Inadequate hand washing by food workers is an important contributing factor to foodborne disease outbreaks in retail food establishments (RFEs). We conducted a survey of RFEs to investigate the effect of hand washing training, availability of hand washing facilities, and the ability of the person in charge (PIC) to describe hand washing according to the Minnesota Food Code (food code) on worker...
In this contribution, we successfully applied demineralization (i.e., solvent-assisted separation and acid washing) for the removal of carbonaceous solids inorganics from a biocrude obtained catalytic hydrothermal liquefaction (HTL) Miscanthus. The experimental results all six employed acids showed that 0.1 M H2SO4 was most effective significantly reduced metallic (Fe by 93.9%, <15 µg/g Mg 9...
Mere familiarity does not necessarily produce understanding. It is perfectly possible to know something (or someone!) all your life and still never really comprehend what you're dealing with. Like the Irishman in the old joke who received a brand-new toilet from his American cousins: He used the bowl for a foot washer, the lid for a breadboard, and the seat for a frame around the Pope's picture.
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