Carl Bosch (; 27 August 1874 – 26 April 1940) was a German chemist and engineer and Nobel Laureate in Chemistry. He was a pioneer in the field of high-pressure industrial chemistry and founder of IG Farben, at one point the world's largest chemical company.

He also developed the Haber–Bosch process, important for the large-scale synthesis of fertilizers and explosives. It is estimated that one-third of annual global food production uses ammonia from the Haber–Bosch process, and that this supports nearly half of the world's population. In addition, he co-developed the so-called Bosch-Meiser process for the industrial production of urea.

Biography

Early years

Carl Bosch was born in Cologne to a successful gas and plumbing supplier. His father was Carl Friedrich Alexander Bosch (1843–1904) and his uncle was Robert Bosch, who pioneered the development of the spark plug and founded the multinational company Bosch. Carl, trying to decide between a career in metallurgy or chemistry, studied at the Königlich Technische Hochschule in Charlottenburg (now Technische Universität Berlin) and the University of Leipzig from 1892 to 1898.

Career

thumb|left|Share of the IG Farbenindustrie AG, issued September 1926; signed by Carl Bosch as chairman

thumb|300px|Painting by [[Hermann Groeber: Der Aufsichtsrat der 1925 gegründeten I.G. Farben AG, Carl Bosch and Carl Duisberg (in front sitting), Edmund ter Meer (third person from right with newspaper)]]

Carl Bosch attended the University of Leipzig, and this is where he studied under Johannes Wislicenus, and he obtained his doctorate in 1898 for research in organic chemistry. After he left in 1899 he took an entry-level job at BASF, then Germany's largest chemical and dye firm. From 1909 until 1913 he transformed Fritz Haber's tabletop demonstration of a method to fix nitrogen using high-pressure chemistry through the Haber–Bosch process to produce synthetic nitrate, a process that has countless industrial applications for making a near-infinite variety of industrial compounds, consumer goods, and commercial products. His primary contribution was to expand the scale of the process, enabling the industrial production of vast quantities of synthetic nitrate. To do this, he had to construct a plant and equipment that would function effectively under high gas pressures and high temperatures. Bosch was also responsible for finding a more practical catalyst than the scarce osmium and expensive uranium being used by Haber.

There were many more obstacles as well, such as designing large compressors and safe high-pressure furnaces. A means was needed to provide pure hydrogen gas in quantity as the feedstock. Also, cheap and safe means had to be developed to clean and process the product ammonia. The first full-scale Haber–Bosch plant was erected in Oppau, Germany, now part of Ludwigshafen. With the process complete he was able to synthesize large amounts of ammonia, which was available for the industrial and agricultural fields. In fact, this production has increased the agricultural yields throughout the world.

In mid-1932, Bosch instructed two IG Farben executives to meet Adolph Hitler in an attempt to stop the Nazi Party's political attacks on the company's synthetic fuel project. In December 1933, the Nazi government granted IG Farben a price and purchase guarantee to expand the production of synthetic oil at Leuna, in a context of increasing state oversight of the company's operations.

Advocating open international cooperation and limited state control over science and industry, Bosch opposed the Nazi regime's autarkic and repressive policies from 1933 onward, which led to his gradual marginalization within IG Farben. From 1935, Bosch was chairman of the board of directors, a role that has become largely ceremonial as he was increasingly sidelined from operational decision-making under the Nazi regime. On average, one-half of the nitrogen in a human body comes from synthetically fixed sources, the product of a Haber–Bosch plant. Bosch was an ardent collector of insects, minerals, and gems. His collected meteorites and other mineral samples were loaned to Yale University, and eventually purchased by the Smithsonian. He was an amateur astronomer with a well-equipped private observatory. The asteroid 7414 Bosch was named in his honour.

Carl Bosch along with Fritz Haber were voted the world's most influential chemical engineers of all time by members of the Institution of Chemical Engineers.

The Haber–Bosch process, which captures nitrogen from the air and converts it to ammonia, heavily impacted the Green Revolution that has been feeding the increasing population of the world.

Bosch also won numerous awards including an honorary doctorate from Technische Hochschule Karlsruhe (1918), the Liebig Memorial Medal of the Association of German Chemists along with the Bunsen Medal of the German Bunsen Society, the Siemens Ring, and the Golden Grashof Memorial medal of the VDI. In 1931 he was awarded the Nobel Prize for Chemistry for the contribution to the invention of chemical high pressure methods. He also received the Exner medal from the Austrian Trade Association and the Carl Lueg Memorial Medal. Bosch also enjoyed his membership of various German and foreign scientific academics, and his chairmanship of the Kaiser Wilhelm Society of which he became the President in 1937.

Awards and honours

  • 1931: Nobel Prize in Chemistry
  • 1919: Liebig Medal of German Chemists Association
  • 1924: Werner von Siemens Ring of Stiftung Werner-von-Siemens-Ring foundation
  • 1932: Wilhelm Exner Medal of Austrian Trade Association
  • Bunsen Medal of the German Bunsen Society
  • Golden Grashof Memorial medal of the VDI
  • Carl Lueg Memorial Medal

See also

  • German inventors and discoverers
  • Fritz Haber

References

Further reading

  • Thomas Hager, The Alchemy of Air: A Jewish Genius, a Doomed Tycoon, and the Scientific Discovery That Fed the World but Fueled the Rise of Hitler (2008) .
  • .
  • Fritz Haber and Carl Bosch
  • BASF Where Carl Worked
  • BASF's Production