Results 21 to 30 of about 1,190 (203)
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
doaj +1 more source
Partial acidulation of phosphate rock for enhanced phosphorus availability in alluvial soils of Bihar, India [PDF]
, 2016 The present study was undertaken to fractionate partially acidulated phosphate rock (PAPR) and evaluate its effect on Phosphorus availability in alluvial soils.
Beura, Kasturikasen +3 more
core +2 more sources
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
doaj +1 more source
Comparative uptake of fluoride ion into enamel from various topical fluorides in vitro [PDF]
, 2007 The document attached has been archived with permission from the Australian Dental Association (8 March 2008). An external link to the publisher’s copy is included.Background: There are many forms of topical fluoride available today, making the decision ...
Alfonso FM +9 more
core +1 more source
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
doaj +1 more source
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
wiley +1 more source
Pyrolysis of tall oil-derived fatty and resin acid mixtures [PDF]
, 2012 Neutralised mixtures of tall oil-derived fatty acids and resin acids were separately pyrolysed (at 750∘C for 20 s) by pyrolysis gas chromatography with mass-selective and flame ionisation detection (Py-GC/MSD/FID) to clarify their thermochemical ...
Alén, R., Lappi, H.
core +2 more sources
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
wiley +1 more source
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
doaj +1 more source
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
doaj +1 more source