With, Hans

Nintzel, Hans. An Interview with Hans Nintzel [by] Joseph Caezza. 

Director Coal-Research Institute at Muehlheim (1914—1943) Invention of gasoline synthesis (at normal pressure) together with Hans Tropsch in 1925... 

We used the measurements of organic carbon and uranium in a sea core, made by Paul R. Doose, Emil K. Kalil, and I. R. Kaplan of the University of California at Los Angeles, and we compared our stable isotope measurements with Hans Suess measurements of radiocarbon in the bristlecone pine ring sequence prepared by Wesley Fergusson, (see fig. 27), Suess at the University of California at San Diego, and Fergusson at the University of Arizona, Tucson. 

The fuel selected for use with HAN should be totally compatible and therefore, nitrate salts of amines are the natural choice for this purpose. Based on a study with aliphatic, aromatic and heterocyclic amines, aliphatic amines are considered a better choice and a formulation containing the nitrate salt of triethanolamine (TEA), that is, TEAN [(CH2OHCH2)3 NHNOJ is currently in use. HAN-based propellants consist of HAN, water and TEAN. Some typical formulations of LGP are given in Table 4.2 along with their properties. These three propellants differ from one another only in respect of the amount of water which they contain. 

HARDEN. SIR ARTHUR (1865-1940). An English chemist who won the Nobel prize in chemistry in 1929 along with Hans von-Euler C helpin. He discovered fermentation enzy mes and demonstrated the structure of zymase, llis fermentation work proved how inorganic phosphates speeded the process. Bora in England, he received his doctorate in Germany. 

A perusal of current biochemistry texts suggests that the use of the squiggle has largely died out, but the concept of a group potential and the importance of these phosphate anhydride bonds in energy storage and transfer is universally accepted. Lipmann shared the Nobel Prize in Physiology/Medicine in 1953 with Hans Krebs of the Krebs (citric acid) cycle. His Nobel citation read in part,... 

Volume 65 opens with a chapter by O. Meth-Cohn (University of Sunderland, UK) on the tertiary amino effect. This chapter updates a review on these interesting and initially unexpected reactions of tertiary anilines bearing ortho substituents by the same author together with Hans Suschit-zky that appeared in Volume 14 of this series in 1972. 

While a low HNO3 concentration is possible in plutonium purification cycles, a higher HN03 concentration is necessary to retain the uranium in the organic phase during the primary U-Pu partitioning. Plant-scale experience was obtained at Hanford with HAN in the second Pu and U cycles (3), and at Savannah River in the primary partitioning cycle, where HAN was particularly effective when used with Fe(N03)2, as well as in the second plutonium cycle ( 6, 9) ... 

The second approach, which represents a departure from previous Pur ex partitioning, provides for the quantitative reduction of Pu to Pu3 with HAN and N Hlf (as the holding reductant) prior to the introduction of the U- and Pu-containing feed into a second cycle extraction column (Fig. 2). This method was proposed for both the EXXON reprocessing plant in Tennessee (10) and the ORNL Reprocessing Facility for LMFBR fuel (11). HAN will continue to be an attractive reductant because, not only is the introduction of metallic cations avoided, but HAN is decomposed safely by heating at temperatures above 60°C, which simplifies the reoxidation of Pu to Pu prior to subsequent extraction cycles. 

The test results for plutonium are shown in Figures 4, 5, and 6. In the test with HAN alone, the Pu split evenly between the Pu and U products. Figure 4 shows that most of the Pu is reduced in the first stage, the only stage where the acidity is... 

Fritz Albert Lipmann (1899-1986), a biochemist, is responsible for discovering coenzyme A and cofactor A (CoA, where A stands for acetylation ) in 1947. He shared the 1953 Nobel Prize for physiology or medicine with Hans Krebs. 

Individual met with Hans-Joachim Grimsel, GEKA. 

He also was the first to recognize its importance in intermediary metabolism. Lipmann was bom in Germany. To escape the Nazis, he moved to Denmark in 1932 and to the United States in 1939, becoming a U.S. citizen in 1944. For his work on coenzyme A, he received the Nobel Prize in physiology or medicine in 1953, sharing it with Hans Krebs. 

Also the extensive discussions with Hans-Joachim Egelhaaf were particularly helpful. 

---