Dr. Reiner Dohrmann
Arbeitsbereichsleiter Technische Mineralogie und Tonmineralogie im Fachbereich B2.1 Geophysikalische Erkundung - Technische Mineralogie
Referatsleiter L3.8 Technische Mineralogie, Sedimentologie des LBEG
Tel.: +49-(0)511-643-2557
Fax: +49-(0)511-643-532557
Reiner.Dohrmann@bgr.de
Besuchsadresse:
Stilleweg 2, Zimmer D30
30655 Hannover
Forschungs- und Arbeitsgebiete
- Quantitative Mineralanalyse von Tonen
- Neu- und Weiterentwicklung tonmineralogischer Verfahren
- Eignung von Bentoniten in europäischen Endlagerkonzepten
- Vorsitz Intern. Dachorganisation für Tonmineralogie (AIPEA)
- Mitglied DIN-Normenausschuss Wasserwesen (NAW), Arbeitskreis "Nährstoffe, Anionen, Summenparameter", Projektpate ISO/NP 11260, ISO/NP 14254, ISO 23470 und ISO 13536
Methodik
- Röntgendiffraktometrie, Kationenaustauschkapazität, Schichtladungsbestimmung mit n-alkylammonium, Komplexe Mineralogische Phasenanalyse
- Sedimentpetrographie
Werdegang
| 1986 – 1993 | Mineraloge (Diplom), Universität Tübingen |
| 1993 – 2000 | RWTH Aachen |
| 1997 | Promotion, RWTH Aachen |
| 2000 | Wissenschaftlicher Direktor, BGR/LBEG, Arbeitsbereichsleiter Technische Mineralogie und Tonmineralogie/Referatsleiter Technische Mineralogie, Sedimentologie |
Veröffentlichungen (peer review)
Dohrmann, R. 2006. Cation Exchange Capacity Methodology I: An Efficient Model for the Detection of Incorrect Cation Exchange Capacity and Exchangeable Cation Results. Applied Clay Science, 34, 31-37.
Dohrmann, R. 2006. Cation Exchange Capacity Methodology II: proposal for a modified silver-thiourea method. Applied Clay Science, 34, 38-46.
Dohrmann, R. 2006. Cation Exchange Capacity Methodology III: Correct exchangeable calcium determination of calcareous clays using a new silver-thiourea method. Applied Clay Science, 34, 47-57.
Dohrmann, R. 2006. Problems in CEC determination of calcareous clayey sediments using the ammonium acetate method. J. Plant Nutr. Soil Sci., 169, 330-334.
Dohrmann, R., Kaufhold, S. 2009. Three new, quick CEC methods for determinining the amounts of exchangeable calcium cations in calcareous clays. Clays and Clay Minerals, 57(3), 338–352.
Dohrmann, R., Kaufhold, S. 2010. Determination of exchangeable calcium of calcareous and gypsiferous bentonites. Clays and Clay Minerals, 58, 513–522
Dohrmann, R., Kaufhold, S. 2014. Cation exchange and mineral reactions observed in MX 80 buffers samples of the prototype repository in situ experiment in Äspö, Sweden. Clays and Clay Minerals, 62, 357–373
Dohrmann, R., Rüping, K.B., Kleber, M., Ufer, K. Jahn, R. 2009. Variation of preferred orientation in oriented clay mounts as a result of sample preparation and composition. Clays and Clay Minerals, 57, 686-694
Dohrmann, R., Olsson, S., Kaufhold, S., Sellin, P. 2013. Mineralogical investigations of the first package of the alternative buffer material test – II. Exchangeable cation population rearrangement. Clay Minerals, 48, 215–233.
Dohrmann, R., Genske, D., Karnland, O., Kaufhold, S., Kiviranta, L., Olsson, S., Plötze, M., Sandén, T., Sellin, P., Svensson, D., Valter, M. 2012. Interlaboratory CEC and Exchangeable Cation Study of Bentonite Buffer Materials: I. CU(II)-Triethylentetramine Method. Clays and Clay Minerals, 60, 162–175
Dohrmann, R., Genske, D., Karnland, O., Kaufhold, S., Kiviranta, L., Olsson, S., Plötze, M., Sandén, T., Sellin, P., Svensson, D., Valter, M. 2012. Interlaboratory CEC and Exchangeable Cation Study of Bentonite Buffer Materials: II. Alternative Methods. Clays and Clay Minerals, 60, 176-185
Kaufhold, S., Dohrmann, R. 2009. Stability of bentonites in salt solutions: I sodium chloride. Applied Clay Science, 45, 171-177.
Kaufhold, S., Dohrmann, R. 2010. Stability of bentonites in salt solutions II. Potassium chloride solution — Initial step of illitization? Applied Clay Science, 49, 98-107.
Kaufhold, S., Dohrmann, R., Klinkenberg, M. 2010. Water uptake capacity of bentonites. Clays and Clay Minerals, 58, 37–43
Kaufhold, S., Dohrmann, R., Sandén, T., Sellin, P., Svensson, D. 2013. Mineralogical investigations of the first package of the alternative buffer material test – I. Alteration of bentonites. Clay Minerals, 48, 199–213.
Kaufhold, S., Kaufhold, A., Jahn, R., Brito, S., Dohrmann, R., Hoffmann, R., Gliemann, H., Weidler, P., Frechen, M. 2009. A new massive deposit of allophane raw material in Ecuador. Clays and Clay Minerals, 57, 72-81.
Kaufhold, S., Sanders, D., Hassel, A.-W., Dohrmann, R. 2015. Corrosion of high-level radioactive waste iron-canisters in contact with bentonite. Journal of Hazardous Materials, 285, 464–473
Klinkenberg, M., Kaufhold, S., Dohrmann, R., Siegesmund, S. 2009. Influence of carbonate microfabrics on the failure strength of claystones. Engineering Geology, 107, 42-54.
Müller, H.W., Dohrmann, R., Klosa, D., Rehder, S., Eckelmann, W. 2009. Comparison of two Procedures for Particle Size Analysis: KÖHN-pipette and X-ray Granulometry. Journal of Plant Nutrition and Soil Science, 172, 172-179.
Schmitz, M., Scheeder, G., Bernau, S., Dohrmann, R., Germann, K. 2011. Dioxins in Primary Kaolin and Secondary Kaolinitic Clays. Environmental Science & Technology, 45, 461–467.
Ufer, K., Kleeberg, R., Bergmann, J., Dohrmann, R. 2012. Rietveld refinement of disordered illite-smectite mixed layered structures by a recursive algorithm. I: One-dimensional patterns. Clays and Clay Minerals 60, 507–534
Ufer, K., Kleeberg, R., Bergmann, J., Dohrmann, R. 2012. Rietveld refinement of disordered illite/smectite mixed layered minerals with a recursive algorithm. II: powder pattern refinement and quantitative phase analysis. Clays and Clay Minerals 60, 535–552
Vollständige Veröffentlichungsliste ab 2007 (Recherche im Zentralen Schriftennachweis)
Patente
Kaufhold, S., Decher, A., Dohrmann, R. (2000) Verfahren zur Bestimmung des Gehaltes an Tonmineralien in einem tonmineralhaltigen Material. - DE 19839531 A1.
Kaufhold, S., Dill, H., Dohrmann, R. 2013. Verfahren und Vorrichtung zum Bestimmen eines Mineralanteils eines Tonminerals, insbesondere quellfähigen Tonminerals in einem Gestein. Patent DE 102009017487.7; G01N 21/35