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  • 1
    Electronic Resource
    Electronic Resource
    Salting-out parameters for organic acids (1982)
    s.l. : American Chemical Society
    Journal of chemical & engineering data 27 (1982), S. 155-156 
    Details
    ISSN: 1520-5134
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/je00028a016
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  • 2
    Electronic Resource
    Electronic Resource
    A simple meter with zero pressure drop for gas flows (1988)
    s.l. : American Chemical Society
    Industrial & engineering chemistry research 27 (1988), S. 1553-1555 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie00080a037
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  • 3
    Electronic Resource
    Electronic Resource
    Flue gas denitrification. Selective catalytic oxidation of nitric oxide to nitrous oxide (1984)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 23 (1984), S. 808-814 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/i200027a031
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  • 4
    Electronic Resource
    Electronic Resource
    Microbial desulfurization of coal and oxidation of pure pyrite byThiobacillus ferrooxidans andAcidianus brierleyi (1995)
    Springer
    Journal of industrial microbiology and biotechnology 14 (1995), S. 420-423 
    Details
    ISSN: 1476-5535
    Keywords: Pyrite oxidation ; Coal desulfurization ; Thiobacillus ferrooxidans ; Acidianus brierleyi ; Kinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Thiobacillus ferrooxidans andAcidianus brierleyi were capable of oxidizing pure pyrite as well as oxidizing sulfur in coal. First order reactions were assumed in the kinetic analysis performed. For oxidation of pure pyrite the rate constant was higher forA. brierleyi than forT. ferrooxidans. For sulfur removal from coal the values of the rate constants were comparable for the two microorganisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01569961
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  • 5
    Electronic Resource
    Electronic Resource
    Aquabis(3,5-dimethyl-1H-pyrazole-κN2)(malonato-κ2O,O′)copper(II) dihydrate (2001)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 1385-1387 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the neutral title complex, [Cu(C3H2O4)(C5H8N2)2(H2O)]·2H2O or [Cu(mal)(dmp)2(H2O)]·2H2O (mal is malonate and dmp is 3,5-dimethyl-1H-pyrazole), the CuII ion, in a slightly distorted square-pyramidal geometry, is coordinated by two O atoms of the bidentate malonate, the O atom of the water ligand and two N atoms from the two 3,5-dimethylpyrazole ligands. The mean Cu—N bond length is 2.007 (6) Å, longer than the Cu—Omal bonds [1.950 (5) Å]. The apical position is occupied by a relatively strongly coordinated water molecule [Cu—Owater 2.288 (5) Å]. The crystal structure is characterized by the layer motif of a hydrogen-bonded network.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270101015116
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  • 6
    Electronic Resource
    Electronic Resource
    Tentative modelling of spray-dry scrubbing of SO2 (1987)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 10 (1987), S. 104-112 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A 0.5 MW spray-dry scrubbing FGD pilot plant was used in the study of spray dryer performance over a wide range of operating conditions. Experimental findings were compared with a spray dryer model. During operation with large excesses of lime, the SO2 absorption was limited by gas phase diffusion. At operation with a shortage of lime, the rate limiting step was the dissolution rate of lime. In addition, the flow regime in a spray dryer can be best described as well mixed. The SO2 level in the flue gas was found to exert no direct effect on the efficiency of SO2 removal. The observed effects are attributed solely to the changes in the drying process, due to the inter-dependence of slurry composition and SO2 concentration.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270100114
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  • 7
    Electronic Resource
    Electronic Resource
    The significance of fly ash in wet-dry scrubbing of SO2 (1988)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 11 (1988), S. 298-305 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A bench scale flue gas desulphurization spray dry scrubbing unit was employed to study the effect of fly ash on the removal of SO2. The equipment consisted of a spray dryer with and ultrasonic nozzle for atomization and a pulse jet baghouse. The flue gas rate was 1500 lN/h (dry gas). Four fly ashes, originating from different countries were investigated. The alkalinity and reactivity of the fly ashes were determined in a pH-stat equipment. Pure fly ash removed SO2 in both the spray dryer and in the baghouse. An increase of humidity divided the fly ashes into two groups. The high calcium fly ash gave a considerably higher SO2 removal than the medium and low calcium fly ashes which showed similar SO2 removals. Fly ash did not enhance the removal of SO2 when added to a lime slurry because lime suppresses the dissolution of the alkali in the fly ashes. The pressure drop build-up in the fabric filter showed a strong dependence on material properties.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270110139
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  • 8
    Electronic Resource
    Electronic Resource
    Kinetics of coal desulphurization by Acidianus brierleyi (1993)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 16 (1993), S. 180-185 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Acidianus brierleyi was demonstrated to remove pyritic sulphur from coal. A. brierleyi was also found capable of catalyzing the removal of what is normally reported as organic sulphur from coal 171US34. A kinetic analysis was performed by assuming a first order reaction. The first order kinetics allowed a comparison with literature data for Thiobacillus ferrooxidans. Also, formation of jarosite was taken into account in the analysis. The simple first order kinetics was observed to fit the data on removal of sulphur satisfactorily.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270160306
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  • 9
    Electronic Resource
    Electronic Resource
    Oxidation of pyrite by Acidianus brierleyi: Importance of close contact between the pyrite and the microorganisms (1993)
    Springer
    Biotechnology letters 15 (1993), S. 99-104 
    Details
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Experiments were done in order to study the thermophilic archaebacterium Acidianus brierleyi during oxidation of pyrite (FeS2). The microorganisms were grown both separated from the pyrite by a membrane and in close contact with the pyrite. From the results it can be concluded that direct contact is needed for good growth of the strain studied. The obtained results indicate that the direct contact mechanism may be applied to oxidation of sulfidic minerals by A. brierleyi.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00131561
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  • 10
    Electronic Resource
    Electronic Resource
    Absorption of NO in an alkaline solution of KMnO4 (1997)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 20 (1997), S. 396-402 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A packed column has been used to study the absorption of nitrogen oxide in an alkaline solution of potassium permanganate. The reactions taking place during the absorption have been examined and the rate constants have been estimated from experimental data. The experiments show that potassium permanganate is an excellent absorbent for nitrogen oxide. However, to avoid formation of MnO2, the hydroxide concentration has to be very high, i.e. 〉 3 mol/l. It was found that the reaction could be expressed as first-order with respect to NO and with respect to KMnO4. The rate constant may be expressed in terms of the hydroxide concentration as follows: kmn = 6114.9 101.9208 10-4 CNaOH m3 mol-1 s-1.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270200607
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