Honeywell Specialty Chemicals Seelze
| Honeywell Specialty Chemicals Seelze GmbH | |
|---|---|
| legal form | GmbH |
| founding | 1814 |
| Seat | Seelze, Germany |
| Branch | Chemical company |
| Website | www.riedeldehaen.de |
The Honeywell Specialty Chemicals Seelze GmbH is in Seelze -based chemical company . The company, which operated under the name Riedel-de Haën AG until 1999 , is the city's largest employer.
history
JD Riedel AG
The company was founded in 1814 by the pharmacist Johann Daniel Riedel from the “Zum Schwarzen Adler” pharmacy in Berlin . Over three generations, the company expanded from pharmacy through large laboratories to larger production facilities for pharmaceutical products. In 1826, for the first time, quinine was extracted from cinchona bark on a large scale and the price list from 1844 already contained 575 pharmaceutical preparations. Under the heirs, the factory was steadily expanded, from 1888 to 1918 there was a branch of Riedel in Berlin-Bohnsdorf , from 1912 all activities were combined on the new factory premises in Berlin-Britz .
In 1905 "JD Riedel AG" was founded out of an OHG.
E. de Haën AG
The chemist Eugen de Haën took over a laboratory for inorganic chemicals in 1861 and produced high-purity salts and oxides in Hanover-List . In 1866 there were 50 workers, in 1874 there were 250 workers. In 1902 the company moved to Seelze. From 1917, de Haën started producing the membrane filters invented by Richard Zsigmondy ( Nobel Prize 1925) and Wilhelm Bachmann .
Mergers
In 1922/23 JD Riedel AG in Berlin acquired all the shares in E. de Haën AG. In 1928 the two listed companies merged to form JD Riedel-E. de Haën AG , from 1943 simplified to Riedel-de Haën AG (RdH). After destruction in the Second World War , the headquarters of the war-important company were relocated from Berlin-Britz to Seelze near Hanover in 1943 , where it was given its own rail connection in the Seelze chemical port .
In 1955 a large part (75%) of the RdH shares were acquired by the Frankfurt-based Cassella Farbwerke Mainkur AG. In 1963 the production of active pharmaceutical ingredients of the RdH in Seelze was spun off into a Cassella-Riedel Pharma GmbH, which from 1971 belonged entirely to Cassella Farbwerke Mainkur AG.
1970 the company RdH crossed the 81-percent share of Hoechst AG in Cassella AG Hoechst Corporation. In 1969/1970 RdH acquired three manufacturers of food additives: Oehme & Baier, Kurt Oestreich and the Westphalian essence factory. These were combined at the Westfälische Essenzenfabrik site in Dortmund and in 1982 the three company names existed side by side and were renamed Riedel-arom . In 1989 Riedel-arom was sold to the Swiss competitor L. Givaudan & Cie SA and renamed Givaudan Deutschland GmbH (later Givaudan-Roure Aromen GmbH).
In the course of the dissolution of the Hoechst Group, Riedel-de Haën AG was sold in 1995 the industrial chemicals division to the American company AlliedSignal and the laboratory chemicals division to Aldrich . In 1997 the stock corporation was converted into a GmbH .
Since the merger of AlliedSignal with Honeywell in 1999, the company has been called Honeywell Specialty Chemicals Seelze GmbH . The old company name Riedel-de Haën has been used as a brand name for various inorganic salts since 2001.
Production range
- inorganic salts and hydrofluoric acid
- Fluoro aromatics (now Honeywell)
- high purity solvents (today Honeywell)
- Luminous pigments , photo dyes (today Honeywell)
- Laboratory chemicals (today Sigma-Aldrich)
- Chinosol (now Allied Signal)
- technical preservatives (today Troy)
In 2005, Riedel-de Haën became a specialty chemicals brand in the Honeywell Group (which in turn was bought by Allied Signal, but whose name has a higher reputation in the specialty materials sector). Furthermore, Sigma-Aldrich continued the laboratory chemicals division of Riedel-de Haën until mid-2008 under the “Riedel-de Haën” brand. Since then, laboratory chemicals have been marketed under the other Sigma-Aldrich Corporation labels.
Employee
Under Honeywell's direction, the number of employees (1990: 1,450 employees) at the Seelz location has continuously decreased. In 2007 there were around 100 layoffs. In addition to around 200 employees at Sigma-Aldrich, around 600 employees work for Honeywell and Troy GmbH, which is also located at the site.
literature
- Karl-Heinz Strehlke : The history of the colony in Seelze. Life situations in a workers' settlement through the ages ; Ed .: Riedel-de Haën AG, Seelze, Seelze: Riedel-de Haën, 1997
Web links
- Company website
- Sigma-Aldrich Announces the Integration of Riedel-De Haen Into Core Product Brands
- Early documents and newspaper articles on Riedel-de Haën AG in the 20th century press kit of the ZBW - Leibniz Information Center for Economics .
Individual evidence
- ^ Ludwig Hoerner : Agents, Bader and Copists. Hannoversches Gewerbe-ABC 1800–1900 . Reichold, Hannover 1995, ISBN 3-930459-09-4 , pp. 85-87
- ↑ A story full of innovations. Honeywell Specialty Chemicals Seelze, accessed July 30, 2016 .