Bonn Mining and Steelworks Association

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Aerial view of the cement works, 1906
Map of the alum works in Hardt, 1845: S = shafts, L = lorry railway, V = incineration heaps of alum coal, M = mill Holzlahr

The Bonner Bergwerks- und Hütten-Verein Aktiengesellschaft was founded in 1853 for mining and alum production . Production of cement also began in the 1850s, and alum production was discontinued 20 years later. In 1938 the company was renamed Portland-Zementwerk AG in Bonn , and in 1987 the company was liquidated . The company was initially located in today's Bonn- Beuel district of Holtorf and later at the cement factory in today's Bonner Bogen . The buildings preserved there are under monument protection.

History of coal mining and alum production

At the beginning of the 19th century, large-scale mining of lignite began in the area of ​​what is now the Bonn districts of Holzlar and Holtorf. The coal seam there was around 4 meters thick . The lower layer, about 1.5 meters thick, consisted of coal containing sulphurous gravel; it was the raw material for extracting alum. Because of the high sulfur content, it could not - as originally planned - be used as a substitute for charcoal in lead smelting; the metal produced was too brittle. The higher-quality coal above, with a thickness of approx. 1.10 m, was used to burn the necessary evaporation of the alum crude liquor.

The alum plants necessary for production were set up at three locations in the Hardt : at today's research center on Pützchens Chaussee , near Holzlar and on the “Fuchskaule” west of Niederholtorf . The former belonged to the family of Leopold Bleibtreu , the latter to the entrepreneur Matthias Jäger. The brothers Gustav (1809–1881) and Hermann Bleibtreu took over the mine fields and alum production after their father's death in 1839. In June 1853 the Bleibtreu brothers and Matthias Jäger united their companies in the Bonner Bergwerks- und Hütten-Verein Aktiengesellschaft in order to exploit concessions on copper, zinc, lead ore and lignite deposits on the left and right banks of the Rhine. This company became the largest alum producer in Prussia. With over 500 employees, the company was the most important employer in the region.

From 1856 to 1871 Hermann Bleibtreu was general director of the Bonner Bergwerks- und Hütten-Verein Aktiengesellschaft . In 1856 he and his brother Gustav built a factory for the production of Portland cement on the Ramersdorf Rheinufer in Oberkassel on the company's supervisory board , after Hermann had already started up such a factory near Stettin a few years earlier . His plan to use the coal extracted from the Bonn Mining and Huts Association in cement production , however, could not be realized.

After alum could be synthetically produced from other raw materials by the chemical industry from 1863 and therefore offered much cheaper, the demand and with it the production of the Bonner Bergwerks- und Hütten-Verein Aktiengesellschaft fell quickly and was discontinued 12 years later. Their mining activities ended a little later due to the lack of profitability.

Alaunhütte (today Research Center for Hunting - right building)

Corporate Headquarters

In 1853 the forester's house Hardt was built as a representative management and residential building of the Bonn Mining and Hüttenverein in Holtorfer Hardt . Since 1957 it has served as the service building of the Research Center for Hunting and Game Damage Prevention (FJW) at the State Office for Nature, Environment and Consumer Protection in North Rhine-Westphalia , headed by Michael Petrak since 1989 .

History of cement production (from 1856)

See also

Individual evidence

  1. ↑ a b c d Horst Wolfgarten, Our closer home, the largest contiguous mining area for lignite around the middle of the 19th century , website of the Holtorf-Ungarten eV citizens' association
  2. ↑ List of monuments of the city of Bonn (as of March 15, 2019), p. 43, number A 1559
  3. ^ Friedrich Falk: A forgotten Rhenish brown coal area. Lignite mining underground on the northern slope of the Siebengebirge. Rheinlandia Verlag, Siegburg 2002, ISBN 3-935005-51-2
  4. ^ Walter Buschmann, Bonner cement factory , in: Rheinische Industriekultur, Rheinische Industriekultur e. V. (Ed.), Www.rheinische-industriekultur.de
  5. ↑ a b Website of the Friends of Historical Securities (FHW), www.fhw-online.de
  6. ↑ a b Helmut Vogt, Hermann Bleibtreu (18211881), founder of the German cement industry , April 25, 2012, Landschaftsverband Rheinland , www.rheinische-geschichte.lvr.de
  7. ↑ a b History trail lignite + alum on the Ennert-Hardt , panel 1: The early industrial history on the Ennert-Hardt. Brown coal and alum Monument and History Association Bonn-Rechtsrheinische .V.
  8. ↑ Beuel impressions: The beginning of Beuel's industrialization ( Memento of the original from January 8, 2017 in the Internet Archive ) Info: The @1@ 2Template: Webachiv / IABot / www.spd-beuel.de archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , Website of the SPD Bonn-Beuel
  9. ↑ AFZ - Der Wald , Volume 62, Issues 13–24, BLV Verlagsgesellschaft, 2007, p. 1013
  10. ↑ Historical calendar for the Beuel district 2017, excerpt from the central calendar of the city of Bonn , Stadtarchiv Bonn (ed.), Monument and History Association Bonn-Rechtsrheinisch

Web links

Commons : Bonner Bergwerks- und Hütten-Verein  - Collection of images, videos and audio files

Coordinates: 50 ° 44 ′ 26.9 ″  N , 7 ° 7 ′ 51.7 ″  E