Zobrazeno 1 - 10
of 30
pro vyhledávání: '"D. W. Pritchard"'
Publikováno v:
Solvent Extraction and Ion Exchange. 16:931-950
The separation of quinoline and iso-quinoline by dissociation extraction has been studied using toluene and aqueous hydrochloric acid as solvents. A laboratory scale multistage countercurrent mixer-settler unit was employed. Details are presented for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a1f5683b392ddfa029a0f5a22413c20
https://doi.org/10.1080/07366299808934561
https://doi.org/10.1080/07366299808934561
Selective leaching of calcareous phosphate rock in formic acid: Optimisation of operating conditions
Publikováno v:
Minerals Engineering. 19:1459-1461
In this study, formic acid was used to reduce the carbonate content of the ground phosphate rock. Effect of acid concentration, liquid/solid ratio (v/w), reaction time and temperature has been studied to get marketable and industrially acceptable pho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9154bc0bb55e5a0e82bf77a587bce553
https://doi.org/10.1016/j.mineng.2006.03.006
https://doi.org/10.1016/j.mineng.2006.03.006
Publikováno v:
Nutrient Cycling in Agroecosystems. 46:135-151
As high grade deposits of phosphate rock are being depleted day by day in the world, future sources will be derived from low grade rocks containing various impurities. Low grade phosphate rocks are not suitable for direct use in acidulation plants un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c79d071c6c0658a20f70f99941d4946a
https://doi.org/10.1007/bf00704313
https://doi.org/10.1007/bf00704313
Publikováno v:
Industrial & Engineering Chemistry Research. 34:4501-4507
Low-grade phosphate rocks have no direct use and are rejected worldwide. In this work, a method is described for the production of ammonium phosphate containing fertilizers from apatite which is generally unsuitable for use in the wet process in phos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7832921928d7a8673676c44f658a823b
https://doi.org/10.1021/ie00039a042
https://doi.org/10.1021/ie00039a042
Publikováno v:
Solvent Extraction and Ion Exchange. 13:771-780
The separation of quinoline and iso-quinotine is studied using dissociation extraction. The effect of various parameters e.g. concentration, isomer ratio and solvents is presented. A universally applied equation for the calculation of separation fact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec71cfe57f259ee520c8f4940e129084
https://doi.org/10.1080/07366299508918302
https://doi.org/10.1080/07366299508918302
Publikováno v:
International Journal of Mineral Processing. 43:123-131
Low grade dolomitic phosphate rocks have no direct use and are rejected all over the world. Substantial amounts of such low grade phosphorites are found along with high grade ore in some areas of Hazara (Pakistan). In the method described, thermal be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53861674ab16985146bebc6524409a2c
https://doi.org/10.1016/0301-7516(94)00043-y
https://doi.org/10.1016/0301-7516(94)00043-y
Publikováno v:
Fertilizer Research. 44:133-142
The bulk of the world's phosphate reserves is located in sedimentary horizons that contain appreciable amounts of carbonate. During beneficiation of phosphate rocks, huge amounts of oversize phosphate rocks are rejected from crushers. This reject als
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8021a5b4e19a8a853fa5c53cbadb1811
https://doi.org/10.1007/bf00750803
https://doi.org/10.1007/bf00750803
Publikováno v:
Solvent Extraction and Ion Exchange. 13:127-142
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b67cf1f7feebbe0a1aaf8c2021cde995
https://doi.org/10.1080/07366299508918264
https://doi.org/10.1080/07366299508918264
Publikováno v:
Deep Sea Research Part A. Oceanographic Research Papers. 38:267-287
An analytical mixed layer thermal inertia model based on remote sensing data is presented to estimate the diurnal mixed layer thickness and the thermal inertia of the mixed layer. The model depends on the concept that the diurnal sea surface temperat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfcac9dee990fa512ec945722a7a4205
https://doi.org/10.1016/0198-0149(91)90068-q
https://doi.org/10.1016/0198-0149(91)90068-q
Publikováno v:
Remote Sensing of Environment. 32:55-74
A method has been developed to determine the oceanic daily mean mixed layer depth from satellite observations and a mixed layer thermal inertia (MLTI) model. The algorithms were developed to use remotely-sensed values of sea surface temperature, albe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0617f179965eb3db1fcdd04a61433ff2
https://doi.org/10.1016/0034-4257(90)90098-7
https://doi.org/10.1016/0034-4257(90)90098-7