Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Weldon

Dumas P, Weldon M K, Chabal Y J and Williams G P 1999 Molecules at surfaces and interfaces studied using vibrational spectroscopies and related techniques Surf. Rev. Lett. 6 225-55... [Pg.1300]

A more constrained opportunity for nitrate bioremediation arose at the US-DoE Weldon Spring Site near St. Louis, Missouri. This site had been a uranium and thorium processing faciUty, and treatment of the metal had involved nitric acid. The wastestream, known as raffinate, was discharged to surface inpoundments and neutralized with lime to precipitate the metals. Two pits had nitrate levels that requited treatment before discharge, but heavy rains in 1993 threatened to cause the pits to overflow. Bioremediation by the addition of calcium acetate as a carbon source successfully treated more than 19 million liters of water at a reasonable cost (75). [Pg.36]

The Weldon-Pechiney process for manufacturing CI2 from HCl involves the use of Mn02 as the oxidizing agent instead of the O2 employed in the Deacon reaction. [Pg.444]

In acid solution, Mn02 is an oxidi2ing agent, and is used as such in industry. The classic example is the oxidation of chloride in HCl, which has been a convenient means of chlorine generation, both in the laboratory and in the old Weldon process for the manufacture of chlorine. [Pg.507]

Machines Based on Movement of Both Dye Liquor and Material. One example of a machine in which both yam and dye Hquor are moved is the Klauder-Weldon skein dye machine not only do the skeins turn, but the Hquor is pumped in small streams over the yam as the threads pass over the spindles. This process assures maximum uniformity and levelness. [Pg.369]

Weldon, W.F., Development of Hypervelocity Electromagnetic Launchers, Internal. J. Impact Engrg. 5 (1-4), 671-679 (1987). [Pg.373]

Figure 12.22. Effect of copolymerisation of vinyl chloride with other monomers on the properties of unplasticised compounds. (After Weldon )... Figure 12.22. Effect of copolymerisation of vinyl chloride with other monomers on the properties of unplasticised compounds. (After Weldon )...
Weldonschlamm, m. Weldon mud. welk, a. withered, faded flaccid languid. Welkboden, m. (Brewing) withering floor, welken, v.i. wither, wilt, fade, decay. — v.t. wither, wilt, dry. [Pg.510]

R.H. Weldon J.R. Bentley, The Effect of Humid Storage on the Burning Properties of a Delay Composition Using Manganese as a Fuel , Australian Weapons Research Establishment, TM CPD 127 (1968) 22) P.J. Humphris ... [Pg.999]

Stevenson, Pyrotechnics for Small Arms Ammunition , Frankford Arsenal Report R-1968 (1970) 34) R.H. Weldon et al, Evaluation... [Pg.999]

Welden. Direct Fired Steam Generator. Promotional literature. Weldon Steam Generators, Inc., USA. [Pg.770]

Lempers HEB, Haasnoot JG, Reedijk J, Hage R, Weldon FN,Vos JG (1994) Inorg Chim Acta 225 67... [Pg.238]

J. Kastner, T. Pichler, H. Kuzmany, S. Curran, W. Blau, D.N. Weldon, M. Delamesiere, S. Draper, and H. Zandbergen, Resonance Raman and infrared spectroscopy of carbon nanotubes. Chem. Phys. Lett. 221, 53-58 (1994). [Pg.524]

Nichols RL, Choe EU, Weldon CB Mechanical and antibacterial bowel preparation in colon and rectal surgery. Chemotherapy 2005 51(suppl 1) 115—121. [Pg.63]

Ronald Lee Nichols Ella U. Choe Christopher B. Weldon... [Pg.115]

Weldon An early process for making chlorine by oxidizing hydrochloric acid (from the Leblanc process) with manganese dioxide. The mixture was heated with steam in stone tanks. Manganese was recovered from the liquor by precipitation with calcium hydroxide and subsequent oxidation by air ... [Pg.289]

The process was complicated by the formation of calcium manganite, CaMn206, known as Weldon mud. Invented by W. Weldon in 1866 and developed at St. Helens from 1868 to 1870. Operated in competition with the Deacon process until both were overtaken by the electrolytic process for making chlorine from brine. Weldon mud has been used as a catalyst for oxidizing the hydrogen sulfide in coal gas to elemental sulfur. [Pg.289]


See other pages where Weldon is mentioned: [Pg.250]    [Pg.596]    [Pg.744]    [Pg.1068]    [Pg.461]    [Pg.361]    [Pg.689]    [Pg.1127]    [Pg.163]    [Pg.61]    [Pg.288]    [Pg.712]    [Pg.713]    [Pg.92]    [Pg.106]    [Pg.104]    [Pg.403]    [Pg.65]    [Pg.61]    [Pg.658]    [Pg.678]    [Pg.212]    [Pg.227]    [Pg.326]    [Pg.209]    [Pg.565]    [Pg.136]    [Pg.116]    [Pg.118]    [Pg.120]    [Pg.131]    [Pg.165]    [Pg.80]   
See also in sourсe #XX -- [ Pg.31 ]




SEARCH



Brown, Weldon

Johnson, James Weldon

Weldon Process

Weldon mud

© 2024 chempedia.info