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FIELD: production of bentonite powder for use in mechanical engineering, drilling practice, adsorption and catalysis processes. SUBSTANCE: crude bentonite clay is subjected to grinding, followed by chemically modifying ground material with sodium salt in aqueous medium, clay-to-water weight ratio being 1:1.35. Slurry thus-obtained is subjected to stirring and drying in tower …
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A process for preparing organic bentone by dry method includes mixing the natural Ca-base bentone with sodium carbonate, exchange reaction to become Na-base bentone, mixing with activator, reaction, mixing with organic coating agent, heating, reaction, extruding out, baking and grinding. ... Dry-process method for producing bentonite
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JP6041165B2 - Process for producing bentonite compact - Google Patents Process for producing bentonite compact Download PDF Info Publication number JP6041165B2. JP6041165B2 ...
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In this paper, we present a process for producing nano bentonite through both ultrasonic and homogenizer processes, as well as an analysis of the physical properties of drilling mud. Open in a separate window. Fig. 1. Schematics of manufacturing bentonite-based mud through the experiments (a) the ultrasound process, (b) the homogenizer process. ...
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1. use method for producing sodium bentonite with calcium bentonite, comprise slurrying, remodeling, purification, dehydration procedure, it is characterized in that: the dispersion agent (NaPO that in the pure water of 1000 parts of weight, adds 1～1.5 part of weight 3) 6 After the stirring and dissolving, the raw ore of calcium base ...
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Download scientific diagram | Process flow diagram for the production of nanoclay from publication: Purification and economic analysis of nanoclay from bentonite | Nowadays, due to the most ...
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Bentonite is widely used in industrial wastewater treatment due to its large reserves and excellent physicochemical properties. In order to further improve the properties of bentonite, natural bentonite needs to be modified before application. The common modification methods of bentonite include thermal activation, acid activation, and microwave activation. In recent years, …
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The bentonite-process sugarcane juice sulfur-free clarification process according to claim 1 or 2, characterized in that: the preparation method of the chitosan/bentonite compound comprises the following steps: slowly dissolving 20g of chitosan with the deacetylation degree of 90% in a citric acid solution with the volume fraction of 10% to ...
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The present invention is to use organic compound to get vinyl alcohol (the Shanxi vinylon P-99 of factory) and natural inorganic mineral raw material calcium-base bentonite is a base-material, with wollastonite powder, talcum powder, light calcium carbonate is that filler adds chemical assistant through mixing, grind, disperse, reconfigure the new waterproof building coating of producing, it ...
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Bentonite production process features ore mining, sodium activation – if required -, drying, and milling. Sodium activation is performed to convert calcium bentonite to sodium bentonite, in which calcium ions are exchanged for sodium carbonate.
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The invention discloses a method for producing bentonite litter by calcium-based bentonite. The method comprises the following steps of: grinding, acidification, sodium-modification, forming, drying and the like. In method, the calcium-based bentonite crude ores are used as a starting point, the bentonite slices are acidified and corroded by an acidifier so as to greatly increase a ...
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A process is disclosed for producing sorbents based on betonites and cellulose-containing materials with a low bulk density and a high absorption power. The process is characterised in that a moist mixture of bentonite and crushed cellulose-containing primary raw materials is processed under an intense shearing action, then extruded and finally dried and granulated.
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Method of converting calcium bentonite to sodium bentonite that is suitable for use as drilling mud or a cement additive. The method comprises preparing a suspension comprising sea water and calcium bentonite at a pH in the range of 8-11, and continuously heating and stirring the suspension for a time in the range of 12 hours to 36 hours.
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By linking the Rotoform solidification process to upstream dosing and mixing plant, we can deliver a fully automated continuous process for the production of sulphur bentonite fertilizer. As the …
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Bentonite Process Development Testing. The diverse nature of bentonite, paired with its potential for variation make a thorough process development program such as those carried out in the FEECO Innovation Center crucial to those producing bentonite products. While there are many variations on bentonite processing, testing is particularly ...
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A three step process for regenerating spent bleaching clays and acid-activated smectite catalyst granules includes: (1) an extraction step to remove a majority of entrained oil, preferably about 75% to about 95% by weight of the entrained oil, when regenerating bleaching clays; (2) an oxidation step to remove the majority of remaining carbonaceous adsorbates which are not …
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These impurities hinder the exfoliation process, thereby limiting the expected enhancement from bentonite incorporation, and may even degrade the properties of the organoclay. Furthermore, although the purification process can remove undesirable phases, it increases costs.
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This article provides a step-by-step guide to the manufacturing process of bentonite granules, covering the extraction, processing, granulation, drying, and quality control …
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A process for upgrading a crude bentonite ore such that it can be used advantageously to prepare unusually high aqueous solution viscosities. This sequence comprises initially subjecting the crude ore to a working or shearing stage, followed by a drying step to about a 5% moisture level. Na.sub.2 CO.sub.3 is then dry-blended with the material, and the sequence is completed by …
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JP5718559B2 - Process for producing organic bentonite and organic bentonite obtained thereby - Google Patents Process for producing organic bentonite and organic bentonite obtained thereby ... bentonite dispersion agent dispersed Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has ...
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JP5553136B2 - Process for producing bentonite compact - Google Patents Process for producing bentonite compact Download PDF Info Publication number JP5553136B2. JP5553136B2 ...
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In this work, the adsorption of lignocelluloses from spent liquor (SL) of neutral sulfite semi chemical (NSSC) pulping process on bentonite was investigated. ... (NSSC) pulping process is used for producing corrugated medium papers. In this process, wood chips are initially treated with sodium bicarbonate and sodium sulfite. Subsequently, the ...
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The invention discloses a method for producing bentonite litter by calcium-based bentonite. The method comprises the following steps of: grinding, acidification, sodium-modification, forming, drying and the like. In method, the calcium-based bentonite crude ores are used as a starting point, the bentonite slices are acidified and corroded by an acidifier so as to …
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WO1992005123A1 - Process for producing bentonite clays exhibiting enhanced solution viscosity properties - Google Patents Process for producing bentonite clays exhibiting enhanced solution viscosity properties ... bentonite crude sodium ore hydroxide Prior art date Application number PCT/US1991/006468 Other languages English (en ...
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JP5850274B2 - Process for producing bentonite compact - Google Patents Process for producing bentonite compact Download PDF Info Publication number JP5850274B2. JP5850274B2 ...
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A process for upgrading a crude bentonite ore such that it can be used advantageously to prepare unusually high aqueous solution viscosities. This sequence comprises initially subjecting the crude ore to a working or shearing stage, followed by a drying step to about a 5 % moisture level. Na2CO3 is then dry-blended with the material, and the sequence is completed by subjecting …
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a process for producing high carbon ferrochrome which comprises feeding continuously to an electric-arc furnace sintered pellets obtained by the reductive calcination of chrome ore and in which of the total content of oxygen combined with the iron and chromium about 80 50 mol percent have been removed by reduction and the reduced iron and chromium are in the form …
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Bentonite can be processed in several ways to optimize properties for the individual uses. Clariant's Adsorbents business operates 28 production sites that turn the raw bentonite clay into consistent quality products for a variety of our …
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Method of converting calcium bentonite to sodium bentonite that is suitable for use as drilling mud or a cement additive. After the addition of a calcium bentonite sample to a prepared soda ash solution at predetermined soda ash/bentonite weight ratios, the bentonite suspension is continuously heated and stirred for up to 24 h. The heating and stirring are crucial towards …
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The invention discloses a method for preparing na-bentonite using ca-bentonite, which comprises the following steps: pulverized ca-bentonite raw mine soil is added into the water solution which the dispersing agent (NaPO3) 6 is already added, and are immersed, stirred and mixed evenly, then the modifier Na2CO3 is added to the saturated water solution; finally the working …
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