clay activation with sulfuric acid extruder

  • Sudan is a country that is rich of clay deposit which is considered to ...

    Abstract. Bentonite clay collected from Jabal Umm Ali area NE of Khartoum (Sudan) was ... distilled water and activated with sulfuric acid at 90 ºC for 3.5 hrs.

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  • Application of Clay for Petrochemical Wastewater Pretreatment

    Key words: alkali-activated bentonite, acid-activated bentonite, wastewater, ammonium ion, phosphate ion, wastewater .... by titration with the standard sulfuric acid solution. (H2SO4 ... The extruder extruded bentonite granules with size of 3,.

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  • Patent US5573583 - Method of activation of clay and activated clay ...

    Nov 12, 1996 ... A method for activating smectite clays to give swelling power and/or dispersibility in ... After thorough mixing, the mixture was passed through an extrusion .... in Example 2 was measured in a 1N sulfuric acid aqueous solution.

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  • CLAY SORBENTS: THE MINERALOGY, PROCESSING AND ...

    Clay minerals that are used for absorbent and adsorbent applications are most commonly calcium montmorillonite and ... KEYWORDS: absorbents, calcium bentonite, hormites, acid activated clays. Sorbent clays are ..... dried, pulverized and mixed with sulfuric acid. The ... extruder breaks up the bundles of hormite elongate.

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  • Acid-Activated Bentonite - Agricultural Marketing Service

    Mar 3, 2016 ... The petitioned acid-activated bentonite substance is a granular clay ... Sulfuric acid (CAS #7664-93-9) is commercially manufactured from...

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  • The Acid Activation of Some Bentonite Clays. - ResearchGate

    The Acid Activation of Some Bentonite Clays. on ResearchGate, the ... A number of bentonite clays have been acid-treated at 93°C. in 5-20 per cent sulfuric acid, ... The effect of high extrusion pressure on acid-activated bentonite was found to...

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  • Patent US2470872 - Preparation of acid activated clay - Google ...

    The crushed and ground clay before extrusion is composed of rather finely ... Clay pellets immersed and activated in sulfuric acid solutions about 35 to 40% or...

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  • The Effects of Acid Activation on the Thermal Properties of ...

    Nov 12, 2014 ... The thermal stability of organoclays, acid-activated clays, and composites ... for the melt intercalation and during extrusion and shaping processes. ... with a solution of sulphuric acid at 90°C for overnight at two acid/clay ratios...

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  • Performance of an Argentinian acid-activated bentonite in the ...

    vol.20 issue2 Effects of acid concentration and extrusion variables on some physical ... Keywords: clay, acid-activated bentonite, bleaching, soybean oil. .... The chemical compositions of the natural and sulfuric-acid-treated samples are listed...

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  • Patent US2671058 - Process for preparation of acid activated clay ...

    The extruded clay pellets are thencontacted with sulfuric acid, so that ... In addition to the requirement of extrusion of the acid activated clay fines to produce...

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