Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Raouf Sh Mikhail"'
Publikováno v:
Journal of Chemical Technology and Biotechnology. 30:1-6
Titania gels were prepared by oxidation of precipitates of hydrous TiIII oxide obtained at different pH values from aqueous titanous chloride by the addition of ammonia. The gels were dried at 110–120°C (383–393 K) and their surface properties w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49fcd2d6be985d559265474528fb3928
https://doi.org/10.1002/jctb.503300101
https://doi.org/10.1002/jctb.503300101
Publikováno v:
Journal of Applied Chemistry and Biotechnology. 26:199-206
Specific surface area and pore structure studies were carried out on zinc oxide samples prepared from zinc oxalate dihydrate by heating at 330 and 370°C and in various atmospheres of water vapour, oxygen and hydrogen. The variation of SBET with wate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d77940084db528d206c95828eba641d
https://doi.org/10.1002/jctb.5020260132
https://doi.org/10.1002/jctb.5020260132
Publikováno v:
Journal of Applied Chemistry and Biotechnology. 23:51-61
Magnesium oxalate dihydrate was used as a “generator” to produce active magnesium oxide by heating both in vacuo and in presence of constant water vapour pressure. Results indicate that sintering is accelerated in presence of water vapour and pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::144acd30924c7f3a6afb4a4718debccf
https://doi.org/10.1002/jctb.5020230106
https://doi.org/10.1002/jctb.5020230106
Publikováno v:
Journal of Applied Chemistry and Biotechnology. 25:849-857
The total surface areas, total pore volumes, and the distribution of pore surface and pore volume in pores of different sizes were determined on the hardened slag-cement pastes. Adsorption isotherms of four different adsorbates, namely water, methano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::080366e3ae731d12429a8680523a79f8
https://doi.org/10.1002/jctb.5020251107
https://doi.org/10.1002/jctb.5020251107
Publikováno v:
Journal of Applied Chemistry and Biotechnology. 25:835-847
Specific surface areas and pore structure studies were carried out on hardened slag-cement pastes. Water and nitrogen adsorption isotherms were measured and the derived parameters were critically compared. Nitrogen areas and total pore volumes were f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69c5799392211cfb476711ffd5ba431a
https://doi.org/10.1002/jctb.5020251106
https://doi.org/10.1002/jctb.5020251106
Publikováno v:
Journal of Chemical Technology and Biotechnology. 29:629-633
The hardened alite pastes were prepared by using initial water:alite ratios of 0.20, 0.30, 0.45 and 0.60. The microstructures of the low and high porosity pastes were investigated by scanning electron microscopy. The results obtained indicated that t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09c9518995aae73d5e4d1e98ee0e4bee
https://doi.org/10.1002/jctb.503291004
https://doi.org/10.1002/jctb.503291004
Publikováno v:
Surface Technology. 6:335-345
In the present investigation, alumina-silica gels, as well as V2O5 doped samples of various pore structures, have been examined for cumene cracking activity in a fixed-bed catalytic reactor connected to a flame ionization detector. On estimating the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92f9c9a3159e9ff5e916ed8ce9dcd3f4
https://doi.org/10.1016/0376-4583(78)90079-1
https://doi.org/10.1016/0376-4583(78)90079-1
Autor:
Erich Robens, Raouf Sh. Mikhail
Publikováno v:
Thermochimica Acta. 82:63-80
The oldest known balances are equal-armed instruments that have been found in Egypt and are represented on Egyptian drawings and reliefs. In its simplest form the beam was made of wood or stone and provided with a central boring for the balance suspe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce474781995d66830af4325044b7b059
https://doi.org/10.1016/0040-6031(84)87276-7
https://doi.org/10.1016/0040-6031(84)87276-7
Publikováno v:
Surface Technology. 10:283-296
Adsorption measurements for cyclohexane and methanol at 35 °C were performed on thermally treated mechanically mixed (I) and coprecipitated (II) hydroxides of magnesium and aluminium heated in the temperature range 200–1000 °C. At all temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e918b82653f9499f35b606b23a21cef0
https://doi.org/10.1016/0376-4583(80)90085-0
https://doi.org/10.1016/0376-4583(80)90085-0
Publikováno v:
Thermochimica Acta. 45:349-360
CuO/SiO2 catalysts with varying amounts of copper were prepard using meso- and microporous silica supports at pH > 10 and pH = 4.5. Structural and textural changes were followed using X-ray diffraction, TG and DTA techniques. Impregnation for periods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df4dd6873beba90cc81548fd5af425a3
https://doi.org/10.1016/0040-6031(81)85094-0
https://doi.org/10.1016/0040-6031(81)85094-0