Fig. 7 b shows that the rate of RSG mechanical strength improvement from 7 to 28 days first increases and then decreases with an increase in Ca-bentonite concentration, indicating that Ca-bentonite can participate in geopolymerization reaction in the later hydration reaction stage, thus improving the RSG mechanical property.
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In this study, for the first time, a composite fluff pulp was produced based on the combination of softwood (i.e., long-length fiber), hardwood (i.e., short-length fiber), non-wooden pulps (i.e., bagasse) and bentonite, with …
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The green impact strengths of Premus pellets made with bentonite or a pulping liquor consistently increased with an increase with an increase in binder mass fraction (Fig. 11). At 2.5 % and 4.5 % binder mass fractions, all four pulping liquors produced pellets with significantly higher impact strengths than the industry-standard binder option ...
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The purpose of this research is to investigate the performance of bentonite, hybrid of ultra-filtration and reverse osmosis (UF-RO) in improving the quality of liquid waste produced by pulp …
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Therefore, the shear rate of apparent viscosities in water decreases rapidly with the increase in the shear rate of 0–20 s −1 and then tends to be stable. This indicates that basalt fiber-reinforced bentonite cement paste (BFBCP) has undergone shear thinning.
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Bentonite is an aluminosilicate clay with montmorillonite, having the characteristics of small particles, large specific surface area, good dispersibility, high pulping rate, and many others, and has been widely used in the field of geopolymer.
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bentonite addition level must be optimised for further ... thick bagasse pulp pads. Flocculants act to improve both the fibre retention ... addition rate for the 'whole' bagasse pulp was then
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In this article, a bentonite & PAM particle flocculation system was em-ployed in recycled fiber pulping wastewater treatment. Bentonite, clay, coke, activated sludge and some other …
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In addition to the effect of Na-saturation treatment, the well-dispersed nanorod crystals (length of 816 ± 233 nm and width of 29 ± 7 nm) may be also a key factor for the high …
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A binary system of PAE resin and bentonite was beneficial to further improving the water retention value of the pulp and the retention rate of the fines, which was beneficial to the improvement of …
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The turbidity and COD removals were improved from 69% to 93% and from 25% to 38% by adding PDADMAC to the SL/bentonite system, respectively. The increase in the heating value of bentonite (from 0 ...
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Moisture content profoundly influences the engineering properties of expansive soil, a critical consideration in various geotechnical applications. This study delves into the intricate relationship between water content and the physical properties of bentonite, a key constituent of expansive soil. Through a comprehensive analysis encompassing fundamental …
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POLYSELECT® POWER PAC-L filtration control additive is designed to reduce the filtration rate of water-based fluids while having minimal impact to viscosity. When added to bentonite-based fluids, POLYSELECT POWER PAC-L provides a system suitable for drilling in porous environments. ... •Reduce clay swelling and sloughing. Advantages •Easy ...
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Eureka provides all invention patents, utility model patents, and design patents related to High pulping rate for R&D engineers, R&D managers, and intellectual property professionals, including patent numbers, applicants, technical effects, abstracts, and drawings. You can check High pulping rate relevant patent data for query retrieval analysis.
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For pure bentonite, elevating the pulp pH led to a reduction in the zeta potential, likely attributed to the adsorption of OH − ions onto the surfaces of bentonite. Nevertheless, with the presence of Al 3+, Mg 2+, or K + ions, the zeta potential of bentonite remained largely unaffected by the pH increase up to pH 8.
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It is apparent that the pulping rate of different clay minerals from different regions varies greatly. By contrast, bentonite has a slightly lower pulping rate due to its natural layered structure ...
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The first result, and as it was expected, was that the highest increase in pulp viscosity generated by bentonite which was explained by the 2:1 structure that produces a higher viscosity than ...
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Since it has been found that in tap water the increase in pulp viscosity in the presence of bentonite deteriorated the flotation results and using salt water and seawater could mitigate the deleterious effect significantly (Wang et al., 2015, Wang et al., 2016, Zhang and Peng, 2015, Zhang et al., 2015a), rheological measurements of pure bentonite suspension as a …
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Soil enzymes play a key role in many soil processes that affect soil health and which may be adversely affected under a changing climate. We investigated the short- and long-term effects of bentonite amendments on soil catalase, invertase, urease, and alkaline phosphatase activity in a field experiment in a semi-arid region in northern China. Treatments included six …
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Because of water shortage, pulp and paper industries must save freshwater, reduce the production of wastewater and improve the recycling rate of clean and treated water. Hence, it is necessary to develop a tertiary treatment to improve wastewater discharge quality and to allow the inclusion of wastewater as process water [5], [8] .
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By contrast, bentonite has a slightly lower pulping rate due to its natural layered structure and swelling properties, but PAL clays from Georgia and Florida in the United States (denoted as Na-PAL(G) and Na-PAL(F)) have a higher pulping rate (>20 m 3 /t), and the pulping rate of PAL from Sacalum in Mexico (denoted as Na-PAL(S)) is up to 17.81 ...
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Bentonite (BT) has been widely used in energy industry to formulate water-based drilling fluids (WDFs) as a fluid gel ... followed by ultrasonic treatment for 10 min to improve the dispersion state of each sample. A droplet (5 μL) of each diluted suspension was ... between the shear stress and the shear rate were derived using three
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The objective of this work was to improve the treatment performance of pulp & paper mill effluents, and hence the quality of treated wastewater. For this purpose, a combination of adsorption and ...
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Molecules 2022, 27, 5022 4 of 19 1 Figure 2. SEM images of fluff pulp with 50S15H35B formulations, distribution of softwood pulp, hardwood pulp and bagasse pulp (a,b), fiber sizes (c –).
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The particle size distribution range is from 100nm to 500nm. Ball milled organically modified bentonite/ cationic guar gum(CGG) can improve retention rate of paper-process reconstituted tobacco pulp obviously than organically modified bentonite/CGG because of smaller grains and better unigormity of ball milled bentonite.
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Pulping Property Of Bentonite - Oct 20, 2020- Pulping rate is the suspension formed by dispersing bentonite particles in water, and when the apparent viscosity of the suspension is 15* 10-3ps · S, the cubic number of bentonite pulping per ton is an important index to measure the quality of bentonite, and the pulping performance of sodium ...
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To improve the dispersion of drilling fluid at high temperature and pressure, the natural Ca-based bentonite was modified with Na 2 CO 3 and SDBS (sodium dodecyl benzene sulfonate: C 12 H 25 SO 4 Na) by microwave semi-dry method.
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Proper incorporation of bentonite can improve the water retention ability and enhance the integrity of matrix. The optimal material ratio with the lowest hydraulic conductivity was NaB-3% which can achieve 4.73 × 10–11 m/s after cured for 28 days. ... Furthermore, it was observed that the bleeding rate decreased after adding bentonite. The ...
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In order to improve the utilization rate of fine-grained shield dregs, a method of using waste silty clay to partially replace bentonite as a conditioner is proposed. Bentonite, wasted silty clay, additives, and tap water are selected to prepare the bentonite- silty clay modified slurry (BSC) and its various properties are tested.
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Ca-bentonite has the advantages of fine particle size and strong adsorption capacity. As an admixture, Ca-bentonite can reduce RSG porosity, and adsorb corrosive ions …
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