Humic Acid as Dispersant of an Alumina Suspension and its Rheological Behaviour
نویسندگان
چکیده
منابع مشابه
Extraction and characterization of humic acid from coal for the application as dispersant of ceramic powders
Subbituminous coal was employed as raw material for the extraction of humic acid (HA) to be applied as ceramic dispersant. The extraction process is described in detail, showing it is a relatively simple procedure, which makes the production attractive and feasible on a laboratory scale. The HA was characterized via elemental analysis, infrared spectroscopy (FTIR), thermal behavior (TGA/DTA), z...
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This work deals with the effect of humic acid (HA) adsorption on the interfacial properties, the stability, and the rheology of aqueous iron oxide (hematite) suspensions. It is first of all demonstrated that HA effectively adsorbs onto hematite, mainly at acid pH. Since the charge of the HA chains is negative, it will be electrostatically attracted to the hematite surface below the point of zer...
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Effect of dispersant on asphaltene suspension dynamics: aggregation and sedimentation.
When oil is mixed with light alkanes, asphaltenes can precipitate out of oil solutions in a multistep process that involves the formation of nano and colloidal scale particles, the aggregation of asphaltene colloids, and their eventual sedimentation. Amphiphilic dispersants can greatly affect this process. The mechanism of the dispersant action in colloidal asphaltene suspensions in heptane has...
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ژورنال
عنوان ژورنال: Materials Research
سال: 2018
ISSN: 1980-5373,1516-1439
DOI: 10.1590/1980-5373-mr-2017-0759