Over the past few years, Cold Crucible Induction Melter (CCIM) demonstrations have been completed using SRS sludge batches 2, 3 and 4 (SB2, SB3 and SB4) simulant compositions. These campaigns demonstrated the ability of the CCIM to effectively produce quality glasses at high waste loadings. The current Advanced Remediation Technology (ART) Phase II-A Project is aimed at demonstrating the CCIM technology under representative DWPF flowsheet conditions and to demonstrate extended operations of the melter. A glass composition development effort was completed to identify and recommend a frit composition and sludge batch 4 (SB4) simulant waste loading target for subsequent ART - Phase II-A CCIM demonstration testing. Based on the results of the glass formulation testing, it was recommended that the Frit 503-R6 composition (B2O3 = 14 wt %; Li2O = 9 wt %; Na2O = 3 wt %; and SiO2 = 74 wt %) be utilized for the demonstration. Furthermore, a waste loading of 46 wt % was recommended. The recommended frit and waste loading would produce a glass with acceptable durability with a liquidus temperature adequately below the 1250° C nominal CCIM operating temperature. This frit composition and waste loading was found to result in a glass that met CCIM processing requirements for viscosity, electrical conductivity and thermal conductivity. The recommended frit and waste loading level should also provide a buffer for sludge product compositional variation to support the Phase II-A CCIM demonstration.

Abstract The successful operation of a modern environmental testing laboratory requires accurate analysis of samples in the shortest time possible after receipt. Automated flow injection analysis and air-segmented continuous flow analysis provide an appropriate analytical methodology for determination of many inorganics in discharge and drinking waters for both compliance monitoring and surveillance requirements. There are now more than 30 accepted analytical procedures for environmental samples based on this technology. Computer-controlled continuous flow analyzers of both types have achieved much of their success due to combination of ‘chemometrics and intelligent automation’. Samples and appropriate standard solutions may be automatically selected from an autosampler, injected, and evaluated through automated peak detection/ quantitation software routines. Whilst running a batch of samples, these instruments automatically detect off-scale unknowns, carry out appropriate dilutions, and rerun the samples, all without user intervention. Operating software is intelligent enough to detect when recalibration has become necessary, and rerun any unknowns between the last known which determined accurately, and the latest known which failed. Appropriate standard solutions may be automatically prepared by serial dilutions, thus eliminating an additional source of technician error. Sometimes it is necessary to characterize the matrix of samples prior to a regular continuous flow analysis. Some modem continuous flow analyzers provide this option through modules for ion chromatography. This approach can facilitate automatic compensation for presence of a difficult matrix, or at the very least, alert the operator to the potential problem. This, when coupled with other on-line sample separation/ pretreatment options such as micro-distillation provides a highly flexible analytical environment. Complex software is a prerequisite for handling the real-time decision making needed in such instruments. Post-process statistical analysis of data obtained over periods as short as one analytical run to as long as several years, is also now routinely carried out. Means, standard deviations, spike recoveries and quality control charts and associated statistics are all readily calculated by the instrument control computer.

A detector utilizing a superconducting solenoid is being discussed for the Superconducting Super Collider (SSC). A useful field volume of 8-m diameter*16-m length at 1.5-2 T ( approximately 1 GJ at 2 T) is required. It has been decided that all of the particle physics calorimetry will be inside the bore of the solenoid and that there is no need for the coil and cryostat to be thin in radiation lengths. An iron yoke will reduce the excitation required and will provide muon identification and a redundant momentum measurement of the muons. A conceptual design was developed to meet these requirements. The magnet will use a copper-stabilized Nb-Ti conductor sized for a cryostable pool boiling heat flux of approximately 0.025 W/cm/sup 2/. The operating current, current density, coil subdivision, and dump resistor have been chosen to guarantee that the coil will be undamaged should a quench occur. The 5000 metric tons of calorimetry will be supported from the iron yoke through a trussed cylindrical shell structure separate from the cryostat. The coil and case, radiation shield, and stainless vacuum vessel would be fabricated and cryogenically tested as two 8-m sections. >

has convinced us that this magnet is a reasonable extrapolation of present technology and is therefore feasible. The principal difficulties anticipated are those associated with the very large physical dimensions and stored energy of the magnet. 5 figs.

A large, 1.5-T conduction cooled superconducting solenoid for the Collider Detector at Fermilab was designed and built as part of a US-Japan international high-energy physics collaboration. Initial tests of the coil without its iron return yoke indicated that the coil performed as designed and should operate in a very stable manner when installed in the flux return iron at Fermilab. The refrigeration system for the solenoid has been installed and operated with a dummy load. The nominal 600-W capacity of the system was achieved in the initial test.

[Ni(Aox)4Cl2] (Aox = acetaldoxime), [Ni(Acm)4(H2O)2]Cl2 (Acm = acetamide), Ni(Cy)3Cl2 (Cy = cyclohexanone oxime), and [Ni(cap)6]Cl2(Cap = caprolactam) have been prepared. Their solution electronic spectra indicate approximately octahedral environments for Ni(II) while solid Ni(Aox)4Cl2 shows a small tetragonal distortion. The i.r. spectra can be accounted for by oxime bonding to Ni via nitrogen and amide bonding to Ni via oxygen alone.

Chemischer InformationsdienstVolume 3, Issue 4 Organoelement Compounds ChemInform Abstract: KRISTALLSTRUKTUR VON DICHLORO-TETRAKIS-(ACETALDOXIM)-NICKEL(II) UND VON DIAQUO-TETRAKIS-(ACETAMID)-NICKEL(II)-DICHLORID M. E. STONE, M. E. STONESearch for more papers by this authorB. E. ROBERTSON, B. E. ROBERTSONSearch for more papers by this authorE. STANLEY, E. STANLEYSearch for more papers by this author M. E. STONE, M. E. STONESearch for more papers by this authorB. E. ROBERTSON, B. E. ROBERTSONSearch for more papers by this authorE. STANLEY, E. STANLEYSearch for more papers by this author First published: January 25, 1972 https://doi.org/10.1002/chin.197204390AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume3, Issue4January 25, 1972 RelatedInformation

The results of a study of the electronic absorption spectrum of cobalt(II) in Li2SO4–DMSO solution, an equimolar NaHSO4–KHSO4 melt, a eutectic melt of Li2SO4–Na2SO4–K2SO4, single salt melts of Li2SO4 and Na2SO4 and a doped single crystal of K2Zn2(SO4)3 have been combined with previous results in sulfate media; all the results can be explained in terms of a blue dodecahedral [Co(O2SO2)4]6− species, a pink octahedral [Co(OSO3)6]10− species or an equilibrium mixture of the two.

The crystal structures of NiCl2(acetaldoxime)4(I) and NiCl2(acetamide)4,2(H2O)(II) have been determined by three-dimensional X-ray methods. Both complexes crystallize in the space group P21/c with lattice constants: (I)a= 7·496(3), b= 12·312(5), c= 9·063(6)Å, β= 97·73(4)°; and (II)a= 6·72(2), b= 14·004(3), c= 9·482(3)Å, β= 102·47(1)°. Diffractometer data were refined by full-matrix anisotropic methods to R 0·035 (I; 1904 reflections) and 0·033 (II; 2018 reflections). In (I) each Ni atom is co-ordinated to four acetaldoxime ligands and two trans Cl atoms, intermolecular interactions being weak. In (II) each Ni is bonded to four organic ligands and two trans water molecules; the Cl atoms lie outside the co-ordination spheres but are involved in strong hydrogen bonding, linking adjacent molecules.

Solutions of NiCl2 in molten acetamide and caprolactam have been investigated. The nature of the Ni(II) species present was found to be independent of concentration, over the concentration ranges 0.02 to 0.25 and 0.01 to 0.3 M, respectively; however, it was not independent of temperature. In both solvents, Ni(II) occurred mainly in octahedral environments but an increase in temperature apparently resulted in the formation of tetrahedral species.