Didier works

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Didier-Werke AG

logo
legal form Corporation
founding 1865
Seat Wiesbaden , Germany
management
  • Andreas Kriegl (Chief Technology Officer)
  • Peter Luef (Chief Financial Officer / Controlling)
Number of employees 1,001 (2011)
sales € 268.9 million (2011)
Website www.rhi-ag.com

Former administrative authority of Didier-Werke AG in Wiesbaden
Didier-Werke AG shares of RM 1000 in November 1940
Ferdinand Didier (1801–1867): Co-founder of Didier-Werke AG
Wilhelm Kornhardt (1821–1871): Co-founder of Didier-Werke AG

The Didier-Werke AG is a company based in Wiesbaden , which is active in the field of research, manufacturing, sales and installation of high-temperature-resistant special ceramic. Founded in 1865, the company's roots go back to at least 1834. In 1995 the majority of Didier-Werke, listed since 1872 , were taken over by RHI AG ( Vienna ), but were still listed on the Frankfurt Stock Exchange in the " Regulated Market " until 2010 (former ISIN : DE0005537005) and included in the German CDAX index . Didier has been a wholly-owned subsidiary of RHI AG since then.

history

In 1834 Ferdinand Didier acquired a brickworks and lime kiln from the Prussian state in Podejuch (today "Podjuchy" in Poland ) near Stettin and named his young company "Chamottefabrik F. Didier in Podejuch". In 1849 Didier discovered natural occurrences of quartz gravel and quartz sand near Podejuch , which he used as one of the first entrepreneurs in Germany to manufacture refractory materials, so-called chamotte or chamotte. The chamottes were used in particular by the emerging gas industry.

After Didier had won Wilhelm Kornhardt , a recognized expert in gas works construction, as a partner in 1864, they both founded the Stettin chamotte factory F. Didier in 1865 , which was based in Stettin . After Didier's death in 1867, Wilhelm Kornhardt continued to run the company as the sole owner. Kornhardt died in 1871 without leaving any children. His heirs sold the factory in 1871 to the Szczecin entrepreneur AH Zander, who converted it into a joint stock company in 1872 under the name "Stettiner Chamottefabrik, Actiengesellschaft formerly Didier". In this way, the capital required for the expansion of the company at home and abroad could be raised.

To expand and improve the product range, Didier founded his own research and development department in 1888. After the establishment of branch plants in Niederlahnstein (1889) and Bodenbach (1890), the acquisition of “Thonwerk Biebrich AG” and “Ver. Chamottefabriken vorm. C. Kulmiz GmbH ”in Saarau . After Didier-Werke had relocated their "Centralverwaltung" from Stettin to Berlin in 1925 , at the end of 1930 they owned 23 factories for refractory materials throughout the entire German Reich, with the associated pits for the delivery of the raw materials required for them. This made a reorganization of the Didier group necessary and in 1932 led to the establishment of "Didier-Werke AG".

After the Second World War , there was expropriation and partial dismantling of the plants east of the inner-German border and in the areas of East Germany placed under Polish administration . Overall, the Didier works lost two thirds of their substance, which is why the company initially concentrated all efforts on the remaining Niederdollendorf plant near Bonn . In 1949 the headquarters were relocated from Berlin to Wiesbaden . The years of the German economic miracle brought a rapid economic recovery for the Didier works. In 1968 Didier expanded its market position in Germany with the takeover of "Rheinische Chamotte- & Dinas-Werke AG" ( Cologne ). A number of large company acquisitions were also made abroad: u. a. 1966 the "Stopinc AG" in Baar ( Canton Zug , Switzerland ), 1989 the "North American Refractories Co." ("NARCO") in Cleveland ( Ohio , USA ) and 1993 the "REFEL Refrattari Elettrofusi SpA" ( San Vito al Tagliamento , Italy ). In 1994, the last year of their entrepreneurial independence, Didier-Werke owned refractories manufacturing plants in Duisburg , Grünstadt , Krefeld , Mainzlar , Marktredwitz and Niederdollendorf in Germany. Abroad, there were also production facilities in Belgium , France , Spain , Italy, Scotland , Canada , the USA and Malaysia .

After the majority of Didier-Werke had been taken over by RHI AG ( Vienna ) in 1995 , the latter concluded a domination agreement with Didier in 1998 , which sealed Didier's full integration into the RHI Group, but also provided for the retention of the “Didier” brand. Under the umbrella of RHI AG, Didier-Werke specialized in refractory products for companies in the fields of glass, the environment, energy and chemistry. In the course of this new company orientation, “Dinova GmbH & Co. KG” ( Niederdollendorf ) was sold to “ Meffert Farbwerke ” ( Bad Kreuznach ) in 2000 . A small part of the shares in Didier-Werke were traded on the Frankfurt Stock Exchange in the “ Regulated Market ” until 2010 (former ISIN : DE0005537005). In addition, the company was previously included in the German CDAX share index . At the end of 2010, the last free shareholders of Didier-Werke were compensated in cash as part of a squeeze-out and their shares were taken over by RHI. Didier has been a wholly-owned subsidiary of RHI AG since then.

Products

The production program includes ceramic refractory materials in various types and formats: shaped and unshaped products for the iron and steel industry, the cement industry, the lime industry and the non-ferrous metal industry as well as fused-cast products for the glass industry. In addition, special ceramic products are manufactured.

literature

Web links