Liquation

In liquation (2.259) we have included the CNDO/2 approximation Vab = Zb7ab- The matrix clement f., where /x and i/ are on different atoms, is the same as in CNDO/2 ... 

Integration of llie velocity components, given by liquation (5.43), with re.spect to gap-wise direction (i.e. z) yields the volumetric Dow rates per unit width m the. V and V directions as... 

Slags are also removed from the liquation ketde periodically. When chloride slags are formed these are cast into chunks and transferred to a wet plant for leaching to remove chlorides and treatment of the metallic residue. If borax slags are employed, metal values in the slag are recovered by further pyrometaHurgical treatment. 

In either case the Pb contains numerous undesirable metal impurities, notably Cu, Ag, Au, Zn, Sn, As and Sb, some of which are clearly valuable in themselves. Copper is first removed by liquation the Pb bullion is melted and held just above its freezing point when Cu rises to the surface as an insoluble solid which is skimmed off. Tin, As and Sb are next removed by preferential oxidation in a reverberatory furnace and skimming off the oxides alternatively, the molten bullion is churned with an oxidizing flux of molten NaOH/NaN03 (Harris process). The softened Pb may still contain Ag, Au and perhaps Bi. Removal of the first two depends on their preferential solubility in Zn the mixed metals are cooled slowly from 480° to below 420° when the Zn (now containing nearly all the Ag and Au) solidifies as a crust which is skimmed off the... 

Darr-arbeit, /. Metal.) liquation, -boden, m. drying floor, kiln floor, -brett, n. drying board. 

Darre,/. drying, kiln-drying drying room or kiln Brewing) malt kiln Metal.) liquation hearth withering. 

Kupfer-bromid, n. copper bromide, specif, cupric bromide, copper(II) bromide, -bro-mtir, n. cuprous bromide, copper(I) bromide, -chlorid, n. copper chloride, specif, cupric chloride, copper(II) chloride, -chloriir, n. cuprous chloride, copper(I) chloride, -cyamd, Ti. copper cyanide, specif, cupric cyanide, copper(II) cyanide, -cyaniir, n. cuprous cyanide, copper(I) cyanide, -dom, m. slag from liquated copper, -draht, m. copper wire, -drahtnetz, n. copper gauze, -drehspane,... 

Seiger-arbeit, /. Metal.) liqiiation, liqiiation process, -blei, n. liquation lead, -domer, m.pl. liqiiation dross. 

Seiger-herd, m. liquation hearth, -hiitte, /. liquation works. 

Seiger-ofen, m. hqiiation furnace, -pfanne, /. liquation pan. -riss, m. vertical section, -riickstand, m. liquation residue, -schlacke, /. liquation slag, -stiick, n. liquation cake. 

Pluvinage, P., J. phys. radium 16, 675, "Approximations syste-matiques dans la resolution de liquation de Schrodinger des atomes k deux electrons."... 

FIGURE 7.4 Absorption spectrum of pyrene, evaluated with Liquation 7.8 (above), and the Kubelka-Munk spectrum of pyrene (below), evaluated by use of Equation 7.7. 

FIGURE 7.5 Absorption spectra of doxepin and zopiclone evaluated with Liquation 7.8. 

The following photographic documentation of the process of extracting antimony from its ore made by one of my French correspondents and one of his colleagues. He says -"These pictures describe an experiment undertaken a few years ago related to the Dry path of antimony (or Stibnite Path) as followed by E. Canseliet and, I guess (but opinions could differ on this point ) by Fulcanelli. The first group concerns the "liquation", i.e. the preliminary purification of the antimony ore (stibinite). The second series shows the Separation. Except for the ore which came from Bolivia, we worked with commercial products coming from a local chemical dealer."... 

Liquation, lead refining by, 14 752 Liquefaction process, 10 287-288 Liquefied gas propehants, 1 775 alternatives, 1 780... 

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