Hermann Passow (chemist)

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Heinrich Hermann Passow (born March 5, 1865 in Halberstadt , † September 1, 1919 in Blankenese ) was a German chemist and entrepreneur .

Life

His parents were the Professor Thomas Gottfried Arnold Passow and Tibeta Athenäa, geb. Ulrichs (1839-1913). His brother was the later otologist Karl Adolf Passow .

Having his childhood in Bremen and Jena had passed, he studied chemistry and natural sciences in Würzburg and Jena and was founded in 1889 with a thesis As to the effect of paratoluidine on acetoacetic doctorate .

In 1886 he became active with Corps Guestphalia Würzburg , and in 1887 with Saxonia Jena .

After a brief employment at the agricultural research institute, he switched to the cement industry. In 1899 he became a partner in an earthen dye factory in Blankenburg in the Harz Mountains and at the same time founded a technical research institute for the cement industry.

Soon afterwards he took over the management of the Westerwald cement factory in Haiger . After inventing cement from blast furnace slag , he founded the Hana cement factory there in 1901 , of which he was a lifelong member of the supervisory board.

He transferred his inventions to the kiln construction institute in Hamburg for further evaluation, where he took over the management of the new laboratory. He moved this laboratory to Blankenese .

He also succeeded in producing cement using air granulation.

In 1913 he founded the Association of German Blast Furnace Cement Works with Anton Schruff .

Fonts

  • On the action of paratoluidine on acetoacetic ester. 1891 (dissertation, University of Jena).
  • The blast furnace slag in the cement industry. 1908.
  • Iron Portland cement versus Portland cement. 1910.
  • Blast furnace cement and Portland cement in seawater and saline waters. 1916.
  • About the free lime in the set cement and its importance for the hardening and salt water resistance. 1923.
  • Comparative bending and compressive strength tests on beams, prisms and cubes made of mortar and concrete. 1938.

Web links

Individual evidence

  1. ↑ Hermann Passow on digitalis uni köln. (PDF; 1.6 MB)
  2. ^ Local family book Bremen-Vegesack.
  3. ↑ Kösener corps lists. 1960, 140 , 128; 71 , 480.
  4. ^ Supplement from the Deutsches Museum in Kultur & Technik , 1989/4 (PDF; 2.5 MB)
  5. ^ Manfred Rasch:  Schruff, Anton. In: New German Biography (NDB). Volume 23, Duncker & Humblot, Berlin 2007, ISBN 978-3-428-11204-3 , p. 600 f. ( Digitized version ).
personal data
SURNAME Passow, Hermann
ALTERNATIVE NAMES Passow, Heinrich Hermann (full name)
BRIEF DESCRIPTION German chemist and entrepreneur
DATE OF BIRTH March 5, 1865
PLACE OF BIRTH Halberstadt
DATE OF DEATH September 1, 1919
Place of death Blankenese