Results 21 to 30 of about 340 (157)
Grasas y Aceites, 2002 In this research work, it was optimized the reaction conditions for the chemistry esterification of unsaponifiable matter in soybean oil deodorizer distillate. The process involves (i) alkaline hydrolysis of saponifiable matter; (ii) acidulation of soaps
Nara Lúcia Facioli +1 more
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Optimisation of the acidulation process of soapstock from the neutralisation of rice bran oil
Grasas y Aceites, 2004 Soapstock from the neutralisation of rice bran oil was characterised through the most important parameters with direct influence on the acidulation process. A central composite rotational experimental design of two levels was used.
Eliete M. S. Scavariello +1 more
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Fermentação da gelose pelas bacterias anaerobias
Memorias do Instituto Oswaldo Cruz, 1940 1 - Anaerobic bacteria of the Clostridium genus acidify mineral media without when agar is added. 2 - Acidulation results from the attack on the agar as a source of carbon.
Genesio Pacheco +2 more
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On the Modelling of Phosphate Rock Acidulation Process
Journal of King Saud University: Engineering Sciences, 1993 Wet process phosphoric acid (WPPA) is produced by reacting sulfuric acid with phosphate rock. The slurry reactor is the heart of the production unit. For various reasons, however, phosporic acid reactor technology still uses many different designs. It is
Tariq F. Al-Fariss +2 more
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Agronomy, 2020 Soluble phosphates are the most common sources currently used in crop production in tropical soils; however, they present low efficiency and are more expensive than natural rock phosphates. The objective was to develop new phosphate fertilizers with slow
Ana Paula Bettoni Teles +2 more
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Comparison and modelling of extraction methods to assess agronomic effectiveness of fertilizer zinc
Journal of Plant Nutrition and Soil Science, Volume 183, Issue 2, Page 248-259, April 2020., 2020 Abstract Total Zn in fertilizer is a poor predictor of Zn availability in granular fertilizers. In this study, we compared different extraction methods using Zn fertilizers for which the agronomic effectiveness had previously been determined. Sixteen fertilizers were extracted by eight different procedures using five extractant solutions: water, 1 M ...
Fien Degryse +5 more
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Journal of Chemistry, Volume 2020, Issue 1, 2020., 2020 Elevated contents of hazardous elements in natural ecosystems are often associated with human activities. Significant quantities of these elements, including heavy metals, are concentrated in tailings. The goal of the study was to assess the mineralogical and geochemical features of the old tailings of the decommissioned Krasnorechenskaya concentrating
Irina A. Tarasenko +8 more
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Studies on the Acidulation of Soft Phosphate
Poultry Science, 1965 Abstract A NUMBER of studies have been conducted to compare the utilization of phosphorus from soft phosphate and other phosphorus sources. The majority of these reports have indicated poor availability of the phosphorus from this source. These studies were reviewed by Motzok et al. (1956) and Nelson and Peeler (1961). Summers et al.
P W, Waldroup, C B, Ammerman, R H, Harms
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Acidulates performance for the better efficacy of rock phosphate in wheat (Triticum aestivum)
The Indian Journal of Agricultural Sciences, 2019 Fixed plot field experiments were conducted at G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand during 2009–10 to 2012–13, to screen acidulates for better utilization of rock-phosphate in wheat (Triticum aestivum L ...
RAJEEW KUMAR +5 more
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Structural Features of Nanomodified Cement Stone
Architecture and Engineering, 2016 The article reviews the effect of mixing water pre-modified with fulleroid nanomaterial on cement paste rheology and cement stone structure. Also pH value of modified mixing water is determined and its variation under the effect of nanomaterial is shown.
Yuri Pukharenko, Irina Aubakirova
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