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AbstractAbstract
[en] In the natural waters of mining regions, for example, Karelia, there are uranium and noble-metal ions, whose concentration amounts to 10-8-10-10 g/liter, which is close to or above the sensitivity threshold of methods employed for their analysis. Existing methods of concentration are laborious to carry out and require transportation of large volumes of samples and do not always guarantee detection of elements of interest. It was of interest to carry out studies using Vion chemisorptive fibers, which have high values for specific surface and static-exchange capacity. Thanks to this, a considerable shortening in duration of the process for sorbing the elements and a more complete trapping of these from low-concentration solutions was expected. As chemisorbents the authors used the fibrous materials Vion KN-1 (in the Na-form), AN-1, and AN-3, which are characterized by static-exchange capacities of 5.3; 2.3; and 2.7 meq/g, respectively. Investigations of the sorption of uranium and of noble metals by the indicated chemisorbents was carried out under laboratory and field conditions
Primary Subject
Source
Translated from Khimicheskie Volokna; No. 2, 31-32(Mar-Apr 1993).
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Journal Article
Literature Type
Translation
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Marinkovic, N; Wang, J; Marinkovic, J; Adzic, R
Brookhaven National Lab., Upton, NY (United States); National Synchrotron Light Source (United States). Funding organisation: USDOE Office of Energy Research (ER) (United States)1999
Brookhaven National Lab., Upton, NY (United States); National Synchrotron Light Source (United States). Funding organisation: USDOE Office of Energy Research (ER) (United States)1999
AbstractAbstract
No abstract available
Primary Subject
Source
AC02-98CH10886; Available from Brookhaven National Lab., Upton, NY (US)
Record Type
Journal Article
Journal
Journal of Physical Chemistry. B, Condensed Matter, Materials, Surfaces, Interfaces and Biophysical; ISSN 1520-6106;
; v. 103; [10 p.]

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AbstractAbstract
[en] Short communication
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Source
Israel Atomic Energy Commission, Tel Aviv (Israel). Licensing Div; 279 p; Jul 1993; p. 2
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Report
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AbstractAbstract
[en] Sorption capacity of some natural, technogeneous, and industrial materials (carbonic and mineral) and also of composite sorbents based on them with respect to radionuclide mixtures has been determined. These materials are promising for decontamination of natural and industrial waters wastewaters and for the removal of corresponding nonradioactive impurities from these waters
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Secondary Subject
Source
Translated from Zhurnal Prikladnoi Khimii; 68: No. 4, 624-629(Apr 1995). Cover-to-cover-translation of Zhurnal Prikladnoj Khimii.
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Journal Article
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Translation
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AbstractAbstract
[en] The sorption of copper on synthetic hydroxyapatite was investigated using a batch method and radiotracer technique. The hydroxyapatite sample prepared by a wet precipitation process was of high crystallinity with Ca/P ratio of 1.688. The sorption of copper on hydroxyapatite was pH independent ranging from 4 to 6 as a result of buffering properties of hydroxyapatite. The adsorption of copper was rapid and the percentage of Cu sorption was >98% during the first 15-30 min of the contact time. The experimental data for sorption of copper have been interpreted in the term of Langmuir isotherm. The sorption of Cu2+ ions was performed by ion-exchange with Ca2+ cations on the crystal surface of hydroxyapatite under experimental conditions. The competition effect of Zn2+, Fe2+ and Pb2+ towards Cu2+ sorption was stronger than that of Co2+, Ni2+ and Ca2+ ions. The ability of the bivalent cations to depress the sorption of copper on hydroxyapatite was in the following order Pb2+ > Fe2+ > Zn2+ > Co2+ ∼ Ni2+. (author)
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32 refs.
Record Type
Journal Article
Journal
Journal of Radioanalytical and Nuclear Chemistry; ISSN 0236-5731;
; CODEN JRNCDM; v. 293(2); p. 641-647

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Kim, Seong Han; Somorjai, Gabor A.
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States). Funding organisation: USDOE Director, Office of Science. Office of Basic Energy Studies. Division of Materials Sciences (United States)2001
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States). Funding organisation: USDOE Director, Office of Science. Office of Basic Energy Studies. Division of Materials Sciences (United States)2001
AbstractAbstract
No abstract available
Primary Subject
Source
LBNL--44338; AC03-76SF00098; Available from Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US); Journal Publication Date: Jul. 2000
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Journal Article
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P'yanov, L.G.; Likholobov, V.A.; Lavrenov, A.V.; Sedanova, A.V.; Pashkina, M.N.
XIX Mendeleev Congress on general and applied chemistry. Four-volumes book. Abstracts. Volume 2. Chemistry and technology of materials, including nanomaterials2011
XIX Mendeleev Congress on general and applied chemistry. Four-volumes book. Abstracts. Volume 2. Chemistry and technology of materials, including nanomaterials2011
AbstractAbstract
No abstract available
Original Title
Modifitsirovannyj uglerodnyj ehnterosorbent dlya zhivotnovodstva
Primary Subject
Source
Rossijskaya Akademiya Nauk, Moscow (Russian Federation); Rossijskoe Khimicheskoe Obshchestvo im. D.I. Mendeleeva, Moscow (Russian Federation); Administratsiya Volgogradskoj Oblasti, Volgograd (Russian Federation); Ministerstvo Obrazovaniya i Nauki Rossijskoj Federatsii, Moscow (Russian Federation); Natsional'nyj Komitet Rossijskikh Khimikov, Moscow (Russian Federation); Rossijskij Soyuz Khimikov, Moscow (Russian Federation); 704 p; ISBN 978-5-9948-0782-8;
; ISBN 978-5-9948-0784-2 (VOLUME 2);
; 2011; p. 528; 19. Mendeleev Congress on general and applied chemistry; XIX Mendeleevskij s''ezd po obshchej i prikladnoj khimii; Volgograd (Russian Federation); 25-30 Sep 2011; 2 refs.


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Book
Literature Type
Conference
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Zhang, Pengchu; Krumhansl, James L.; Brady, Patrick V.
Sandia National Labs., Albuquerque, NM (United States); Sandia National Labs., Livermore, CA (United States). Funding organisation: US Department of Energy (United States)2000
Sandia National Labs., Albuquerque, NM (United States); Sandia National Labs., Livermore, CA (United States). Funding organisation: US Department of Energy (United States)2000
AbstractAbstract
No abstract available
Primary Subject
Source
14 Jul 2000; 19 p; AC04-94AL85000; Also available from OSTI as DE00760003; PURL: https://www.osti.gov/servlets/purl/760003-ffWHCJ/webviewable/; Submitted to Radiochim, Acta
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Miscellaneous
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AbstractAbstract
[en] The surface and sorption properties of kaolinite were analyzed as a function of silicate. Batch experiments indicate that the U(VI) sorption is promoted by the addition of silicate at low pH while is depressed at high pH. The sorption was acceptably predicted by the formation of a ternary silicate surface complex under the experimental conditions. The pseudo-second order kinetic model fit the sorption kinetics better. The sorption isotherms are more in accordance with Langmuir model and the thermodynamic parameters indicate a spontaneous and endothermic sorption process. (author)
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Source
42 refs.
Record Type
Journal Article
Journal
Journal of Radioanalytical and Nuclear Chemistry; ISSN 0236-5731;
; CODEN JRNCDM; v. 311(3); p. 1899-1907

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AbstractAbstract
No abstract available
Original Title
Surface roughness; Excites state processes
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Source
Sep 1998; [np]; Available from British Library Document Supply Centre- DSC:DXN023392; Thesis (Ph.D.)
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation
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