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Scheffler, K.
Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.); Deutsches Patentamt, Muenchen (Germany, F.R.)1979
Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.); Deutsches Patentamt, Muenchen (Germany, F.R.)1979
AbstractAbstract
[en] In order to accelerate the regeneration, steam and easily desorlable substances are first removed at 1000C from the activated carbon. This is followed by treatment with one or several solvents such as a mixture of, e.g., N- methyl-2-pyrrolidone (NMP) and triethanol amine (TEA) or 2-pyrrolidone, NMP and TEA. These solvents can then be blown out by inert gases at high temperatures of 2000C, at which the solvents do not decompose. (DG)
[de]
Um die Regeneration beschleunigen zu koennen, werden zuerst Wasserdampf und leicht desorbierbare Substanzen bei 1000C aus der Aktivkohle entfernt. Anschliessend erfolgt eine Behandlung mit einem oder mehreren Loesungsmitteln, wie das Gemisch aus z.B. N-Methyl-2-pyrolidon (NMP) und Triaethanolamin (TAEA) oder 2-Pyrrolidon, NMP und TAEA. Diese Loesungsmittel koennen dann bei hohen Temperaturen von 2000C, bei denen sie sich nicht zersetzen, mittels Inertgasen ausgeblasen werden. (DG)Original Title
Verfahren zum Regenerieren von beladener Aktivkohle
Primary Subject
Source
21 Jun 1979; 3 p; DE PATENT DOCUMENT 2242164/B/
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The absorbing capacity of activated carbon can be considerably improved upon by heating in an inert atmosphere to 50-3000C and then quenching to below -660C. The method is explained in 18 examples. The quenching takes place by cooling with indirect heat exchange on the wall of a cooling chamber, the treated coal thus maintains its hardness and does not break. (UWI)
[de]
Die Sorptionsfaehigkeit von Aktivkohle laesst sich durch Erhitzen in inerter Atmosphaere auf 50 bis 2000C und anschliessendes Abschrecken auf weniger als -660C erheblich verbessern. Das Verfahren wird in 18 Beispielen erlaeutert. Die Abschreckung erfolgt durch Kuehlung in indirekten Waermeaustausch an der Wand einer Kuehlkammer, die behandelte Kohle behaelt dabei ihre Haerte und zerbricht auch nicht. (UWI)Original Title
Verfahren und Vorrichtung zur Verbesserung der Sorptionsfaehigkeit von Aktivkohle
Primary Subject
Source
29 Nov 1979; 13 p; DE PATENT DOCUMENT 2461165/C/; Available from Deutsches Patentamt, Muenchen, Germany, F.R
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Ucinok aktivneho uhlia na meranie radioaktivity v RIA
Primary Subject
Source
Karlova Univ., Hradec Kralove (Czechoslovakia). Lekarska Fakulta; 21 p; nd; p. 3; Workshop on radioimmunoassay; Hradec Kralove, Czechoslovakia; 27 - 28 Apr 1978; Published in summary form only.
Record Type
Miscellaneous
Literature Type
Conference
Report Number
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Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Mascaros Vicedo, J.; Ayllon Mesa, M.A.; Marti Cervera, C.
IWA Young Water Professionals Spain 2019. Book of abstracts2019
IWA Young Water Professionals Spain 2019. Book of abstracts2019
AbstractAbstract
[en] Activated carbon is produced from carbonaceous source materials by a complex physicochemical process. It is extensively used as a high adsorptive product for purification, deodorization, and decolorization in the chemical industry and in drinking water treatment plants. In 2017, the global activated carbon market accounted for $4 billion and is expected to reach $14.21 billion by 2026.
Primary Subject
Source
241 p; 2019; 2 p; IWA Young Water Professionals Spain Conference 2019; Madrid (Spain); 12-15 Nov 2019; Available https://www.ywp-spain.es/wp-content/uploads/2020/03/YWP-Conference-2019-Book-of-Abstracts.pdf
Record Type
Book
Literature Type
Conference
Country of publication
Reference NumberReference Number
Related RecordRelated Record
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External URLExternal URL
AbstractAbstract
[en] There are two reasons for measurement of radon concentration. On one hand, it causes grave health hazards to not only uranium miners but also people living in normal houses and buildings. On the other hand it helps in mineral exploration, earthquake prediction, study of volcanic activities, and search for geothermal energy sources. In this paper we have investigated possibilities of radon detection using passive detectors based on domestic industry activated charcoal and their relative detection efficiency is determined in comparison to commercial EPA detector. Also, minimum detectable activity for measuring radon is determined, effect on water gain, exposure time and counting efficiency. (author)
Original Title
Mogucnost primene aktivnih ugljeva za merenje koncentracije radona
Primary Subject
Secondary Subject
Source
Kovacevic, M. (ed.) (Institut za Nuklearne Nauke VINCA, Belgrade (Yugoslavia)); 421 p; ISBN 86-80055-75-1;
; 1995; p. 221-229; Institut za Nuklearne Nauke VINCA; Belgrade(Yugoslavia); 7 refs.; 2 figs.

Record Type
Book
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
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Bonn, J.W.
Pennwalt Corp., Philadelphia, PA (USA)1978
Pennwalt Corp., Philadelphia, PA (USA)1978
AbstractAbstract
[en] This invention relates to a rechargeable particulate filter for adsorption of radioactive contamination from a nuclear containment structure in the event of a nuclear power plant design basis or loss of coolant accident. More particularly, this invention relates to a rechargeable charcoal filter which permits loading and unloading of the particulate granules while limiting exposure of personnel to radioactivity. The present invention could also be utilized in heating and air conditioning systems. (author)
Primary Subject
Source
19 Dec 1978; 18 p; CA PATENT DOCUMENT 1044613/A/; Available from Commissioner of Patents, Ottawa-Hull, Canada K1A 0E1
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] We propose a recycling system that can recover the useful water from the spent water soluble coolant by using a surfactant and powdered activated carbon. The processing of about 70 liters of actual spent water soluble coolant yielded about 60 liters of clear water with 6.7 of pH and 0.0 of Brix value. About 120 liters of recycle water-soluble coolant was prepared by diluting an emulsion type cutting fluid 20 times with the recycle water. The recycle coolant has been showing the very similar Brix value and pH changes as those of virgin coolant until 100 days usage. The recycle coolant also showed the same potential to inhibit the progress of flank wear as that of virgin coolant. These facts indicate that the recycled water can be utilized as a dilutor of renewal water-soluble coolant
Primary Subject
Source
3 refs, 8 figs, 3 tabs
Record Type
Journal Article
Journal
Journal of Mechanical Science and Technology; ISSN 1738-494X;
; v. 24(1); p. 267-270

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Hickey, T.N.; Spulgis, I.S.
Pennwalt Corp., Philadelphia, PA (USA)1978
Pennwalt Corp., Philadelphia, PA (USA)1978
AbstractAbstract
[en] This invention relates to a rechargeable gasketless charcoal filter which can adsorb radioactive constituents, especially iodine and methyl iodide, at an efficiency of better than 99.9% even should a design basis or loss of coolant accident occur
Primary Subject
Secondary Subject
Source
7 Feb 1978; 16 p; CA PATENT DOCUMENT 1025780/A/; Available from Commissioner of Patents, Ottawa-Hull, Canada K1A 0E1
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Cavagnaro, D.M.
National Technical Information Service, Springfield, VA (USA)1978
National Technical Information Service, Springfield, VA (USA)1978
AbstractAbstract
[en] The bibliography contains worldwide citations pertaining to the uses of activated charcoal in industry as well as in the laboratory, including its use in air pollution, chemical adsorption, radioactive waste adsorption, electrochemistry, industrial waste treatment, and the mining industry
Primary Subject
Secondary Subject
Source
Jun 1978; 83 p; Available from NTIS. PC N01/MF N01
Record Type
Report
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INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] N-Alkyl imidazoles have been prepared by sonochemical irradiation of imidazole and 1-bromobutane using alkaline promoted carbons. Under the experimental conditions, N-alkyl imidazoles can be prepared with a high activity and selectivity. It is observed that imidazole conversion increases in parallel with increasing basicity of the catalyst. For comparison, the alkylation of imidazole has also been performed in a batch reactor system under thermal activation
Source
APHYS'03: 1. international meeting on applied physics; Badajoz (Spain); 13-18 Oct 2003; S0169433204008256; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
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Conference
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