Results 81 to 90 of about 6,482,080 (294)

Direct Contact Membrane Distillation for Separation of Hcl From A Mixture of Acids

open access: yesJournal of Engineering, 2018
HCl is separated from HCl –H2SO4  solution by membrane distillation process(MD). The flat –sheet membranes made from polyvinylidene fluoride (PVDF) and polypropylene (pp.). Plate and frame these types of membrane where used in the process.
Assrar Abdullah Hassan, Hala Adel Jabbar
doaj   +1 more source

Chemical analysis of aerosol in the Venusian cloud layer by reaction gas chromatography on board the Vega landers [PDF]

open access: yes
The experiment on sulfuric acid aerosol determination in the Venusian cloud layer on board the Vega landers is described. An average content of sulfuric acid of approximately 1 mg/cu m was found for the samples taken from the atmosphere at heights from ...
Bondarev, V. B.   +9 more
core   +1 more source

Characterization of sulfur oxidizing bacteria related to biogenic sulfuric acid corrosion in sludge digesters

open access: yesBMC Microbiology, 2016
BackgroundBiogenic sulfuric acid (BSA) corrosion damages sewerage and wastewater treatment facilities but is not well investigated in sludge digesters.
B. Huber   +4 more
semanticscholar   +1 more source

Recovery of H2SO4 from spent acid waste using bentonite adsorbent

open access: yesMATEC Web of Conferences, 2017
Spent acid waste is produced in the petroleum processing industry at the alkylation process unit that requires sulfuric acid as a catalyst to produce iso-octane.
Asof Marwan   +3 more
doaj   +1 more source

Effect of sulfuric acid concentration on morphology of calcium sulfate hemihydrate crystals

open access: yesMaterials Research Express, 2020
Calcium sulfate hemihydrate whiskers were prepared in sulfuric acid-distilled water system by hydrothermal method using calcium sulfate dihydrate as raw materials.
Yubin Wang   +4 more
doaj   +1 more source

Backscatter laser depolarization studies of simulated stratospheric aerosols: Crystallized sulfuric acid droplets [PDF]

open access: yes
The optical depolarizing properties of simulated stratospheric aerosols were studied in laboratory laser (0.633 micrometer) backscattering experiments for application to polarization lidar observations. Clouds composed of sulfuric acid solution droplets,
Sassen, Kenneth   +2 more
core   +1 more source

Impact of Sulfuric Acid Treatment of Halloysite on Physico-Chemic Property Modification

open access: yesMaterials, 2016
Halloysite (HNT) is treated with sulfuric acid and the physico-chemical properties of its morphology, surface activity, physical and chemical properties have been investigated when HNT is exposed to sulfuric acid with treatment periods of 1 h (H1), 3 h ...
T. Gaaz   +4 more
semanticscholar   +1 more source

Laboratory evaluation of microwave absorption properties under simulated conditions for planetary atmospheres [PDF]

open access: yes
The microwave absorbing properties of gaseous sulfuric acid (H2SO4) under Venus atmospheric conditions are investigated. The results are applied to measurements from Mariner 5, Mariner 10, and Pioneer/Venus Radio Occultation experiments, to determine ...
Steffes, P. G.
core   +1 more source

Ice nucleation in sulfuric acid/organic aerosols: implications for cirrus cloud formation [PDF]

open access: yesAtmospheric Chemistry and Physics, 2006
Using an aerosol flow tube apparatus, we have studied the effects of aliphatic aldehydes (C3 to C10) and ketones (C3 and C9) on ice nucleation in sulfuric acid aerosols.
M. R. Beaver   +3 more
doaj  

Thermochemical generation of hydrogen and carbon dioxide [PDF]

open access: yes, 1984
Mixing of carbon in the form of high sulfur coal with sulfuric acid reduces the temperature of sulfuric acid decomposition from 830.degree. C. to between 300.degree. C. and 400.degree. C.
England, Christopher, Lawson, Daniel D.
core   +1 more source

Home - About - Disclaimer - Privacy