zirconium hafnium containing

Structural studies of UHMWPE composite materials …

According to Table 1, and materials containing oxides of zirconium and hafnium, a phase transition at 91-93oS is absent in the starting UHMWPE. Also an increase in the onset temperature of melting at the transition from the oxides of titanium to oxides of hafnium ...

zirconium hafnium containing

Zirconium and hafnium complexes containing Nalkyl The coordination chemistry of zirconium and hafnium complexes containing the tridentate amine biphenolate ligands [RN(CH22O3,5C6H2(tBu)2)2]2− ([RONO]2−; R = tBu (1a), iPr (1b), nPr (1c)) featuring distinct ...

Synthesis, Structure, and Properties of Zirconium and …

Synthesis, Structure, and Properties of Zirconium and Hafnium Complexes Containing η2‐Pyrazolato Ligands October 2005 Berichte der deutschen chemischen Gesellschaft 2005(19):3955 - 3961

US20120196449A1

Zirconium, hafnium and titanium precursors for atomic layer deposition of corresponding metal-containing films

Synthesis, Structure and Catalytic Activity of Titanium, Zirconium and Hafnium-Containing Polyoxometalates

Catalytic studies performed on ruthenium, zirconium and hafnium containing POMs are discussed separately in Chapter IV. Polyanions 2, 3 and 4 are dimeric, trimeric and tetrameric strctures respectively, made up from the interaction of the trilacunaryNa

Zirconium and hafnium: Old minerals finding new prominence | E…

Zirconium and hafnium: Old minerals finding new prominence | Edison

Systems and methods for forming zirconium and/or …

Metal-containing layers containing mixed zirconium/hafnium silicates of the general formula Zr a Hf b Si c O d, wherein d=2 (a+b+c), are also contemplated to be included within the scope of this invention.

EP 2464652 A2 20120620

364572606 - EP 2464652 A2 20120620 - HAFNIUM- AND ZIRCONIUM-CONTAINING PRECURSORS AND METHODS OF USING THE SAME - [origin: WO2011020042A2] Disclosed are hafnium- and zirconium-containing precursors and methods of providing the ...

Cyclopentadienyl compounds of zirconium and hafnium, …

Cyclopentadienyl compounds of zirconium and hafnium, containing haloacetate ligands É. M. Brainina 1, E. V. Bryukhova 1, B. V. Lokshin 1 & N. S. Alimov 1 Bulletin of the Academy of Sciences of the USSR, Division of chemical science volume 22, pages 1973

Zirconium and Hafnium Complexes Containing N ‑Alkyl …

Zirconium and Hafnium Complexes Containing <i>N</i>‑Alkyl-Substituted Amine Biphenolate Ligands: Unexpected Ligand Degradation and Divergent Complex Constitutions Governed by <i>N</i>‑Alkyls By Lan-Chang Liang (1469347), Chia-Cheng Chien (1941547), Ming-Tsz Chen (1730329) and Sheng-Ta …

Utilisation of Electron Channelling, Neutron Diffraction and …

Diffraction and Moss spectroscopy to study the structure of Zirconium and Hafnium containing garnets Dataset, Last Updated 2014-02-18 13:29:57, Visibility External RIFCS Published (0012) Tagged with Properties Brief Description ...

The structure and ordering of zirconium and hafnium …

The structure and ordering of zirconium and hafnium containing garnets studied by electron channelling, neutron diffraction and Möss spectroscopy Whittle, Karl R. Lumpkin, Gregory R.

Zirconium and hafnium complexes containing N-alkyl …

 · Zirconium and hafnium complexes containing N-alkyl-substituted amine biphenolate ligands: unexpected ligand degradation and divergent complex constitutions governed by N-alkyls. Lan-Chang Liang Department of Chemistry and Center for Nanoscience & Nanotechnology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.

Preparation and structures of enantiomeric dinuclear zirconium and hafnium complexes containing …

Supporting Information Preparation and structures of enantiomeric dinuclear zirconium and hafnium complexes containing two homochiral N atoms, and their catalytic property for polymerization of rac-lactide Minggang Hu,a Mei Wang,*a Hongjun Zhu,a Lu Zhang,a Hui Zhangb and Licheng Sun*a,c ...

Zirconium and hafnium complexes containing N -alkyl …

 · Read "Zirconium and hafnium complexes containing N -alkyl substituted amine biphenolate ligands: coordination chemistry and living ring-opening polymerization catalysis, Dalton Transactions" on DeepDyve, the largest online rental service for scholarly research ...

Titanium, Zirconium, Or Hafnium Containing Patents and …

Search for Titanium, Zirconium, Or Hafnium Containing Patents and Patent Applications (Class 420/426) Filed with the USPTO Abstract: Identifying a stable phase of a binary alloy comprising a solute element and a solvent element. In one example, at least two ...

(PDF) Separation of Zirconium and Hafnium: A Review

hafnium-containing zirconium oxide is initially dissolved in nitric acid and the formed solution is contacted with an organic solution of TBP in kerosene. Unlike the MIBK extraction process ...

Zirconium or hafnium-containing oxides

Zirconium (Zr) and hafnium (Hf) are often contained in phosphors, for example, used in the form of CaZrO 3 as host crystals for adding light-emitting elements (see JP-A 8-283713), added to aluminate-based host crystals along with Eu for prolonging the afterglow of emission (see JP-A 8-73845), and added to rare earth oxychlorides or oxybromides along with Ce for improving the conversion ...

Zirconium, hafnium and yttrium complexes containing …

Zirconium and hafnium complexes M(η 5: η 1 −C 5 Me 4 SiMe 2 NR′) x Cl (4−2x) (M = Zr, Hf; x = 1, 2; R′ = iPr, tBu) containing one or two linked amido-tetramethylcyclopentadienyl ligands C 5 Me 4 SiMe 2 NR′ have been synthesized by the reaction of the dilithium derivative Li …

PROCESS FOR REMOVING HAFNIUM FROM ZIRCONIUM …

A new process for the separation of hafnium from zirconium has been developed, based on the repeated reaction of the mixed tetrachloride vapors of zirconium and hafnium with alkali metal chloride salts in a solid form. Hafnium tends to remain in the condensed phase while zirconium concentrates in the vapor phase.

Zirconium and hafnium complexes containing N-alkyl …

 · The reactivity and thermal stability of zirconium and hafnium complexes containing the N-alkyl-substituted amine biphenolate ligands of the type [RN(CH2-2-O-3,5-C6H2(tBu)2)2](2-) ([R-ONO](2-); R = tBu (1a), iPr (1b), or nPr (1c)) were investigated.

Sample Preparation Guides

Materials containing Zirconium and Hafnium compounds are also relatively non-hazardous and do not present unique sampling and handling problems. However, many analytical measurement techniques require a solution of the sample and HF is most often required. Safety considerations appropriate to the use of HF will apply.

Zirconium and Hafnium Complexes Containing Bidentate …

Zirconium and Hafnium Complexes Containing Bidentate Diarylamido−Phosphine Ligands Pin-Shu Chien and Lan-Chang Liang

Zirconium Hafnium Containing

US7390436B2 - Zirconium or hafnium-containing … Oxo-acid salts, double oxides or complex oxides contain 0.001-10 atom % of Zr or Hf. They emit near-ultraviolet radiation when excited with vacuum-ultraviolet radiation. Brevetto EP0111700A1 - Zeolites ...

US9045509B2

The disclosed precursors may be used to deposit hafnium- or zirconium-containing layers using vapor deposition methods such as chemical vapor deposition or atomic layer deposition. Disclosed are...

Chemical Shipments | MIT Office of the Vice President for …

1C234 Zirconium with a hafnium content of less than 1 part hafnium to 500 parts zirconium by weight, as follows: metal, alloys containing more than 50% zirconium by weight, compounds, manufactures thereof, and waste or scrap of any of the foregoing

University of Birmingham Hafnium and zirconium diboride containing …

Hafnium and zirconium diboride containing ceramics Binner, Jon; Hillman, William Document Version Publisher''s PDF, also known as Version of record Citation for published version (Harvard): Binner, J & Hillman, W Oct. 22 2020, Hafnium and zirconium diboride

Preparation of zirconium and hafnium complexes …

 · Preparation of zirconium and hafnium complexes containing chiral N atoms from asymmetric tertiary amine ligands, and their catalytic properties for polymerization of rac-lactide M. Hu, F. Han, W. Zhang, W. Ma, Q. Deng, W. Song, H. Yan and GCatal. Sci.

(PDF) Synthesis of metallocenes of zirconium, hafnium, …

Synthesis of metallocenes of zirconium, hafnium, manganese, iron, tin, lead and half-sandwich complexes of rhodium and iridium containing the ligands (η-C5R4CR′2PMe2), where R and R′ may be H or Me Synthesis of metallocenes of zirconium, hafnium ...

Zirconium and hafnium compounds containing various …

A simple general method was proposed for the synthesis of chelate compounds of zirconium and hafnium of the R4M, R3MCl, and R2MCl2 types by the reaction ofβ-diketones with either the chlorides or the chelate derivatives of the chlorides of Zr and Hf in the presence of an amine. Here members of the previously unknown coordination compounds of zirconium and hafnium were obtained, containing ...

Zeolites containing titanium, zirconium and/or hafnium, …

1. A titanum-, zirconium- and/or hafnium-containing zeolite which a) contains silicon, aluminium, sodium, potassium, at least one element from the group consisting of titanium, zirconium and hafnium and an organic ammonium compound in the following ratio ...

Crystal Structures of Titanium, Zirconium, and Hafnium at …

At high pressures, as determined by x-ray analysis, titanium and zirconium metal have a distorted, body-centered-cubic structure. This phase persists on pressure release. The normal hexagonal close-packed structures are recovered when the metals are heated. An electronic shift must occur in the transition. Hafnium metal showed no such transition.

Separation of hafnium from zirconium by anion exchange

Separation of Hafnium From Zirconium by Anion Exchange John 1. Hague and Lawrence A. Machlan (September 13, 1960) ... 12 showed a composition of zirco nium containing 10 to 100 ppm of hafnium; in fraction 13 hafnium was not identified with ...