Examples of 'vanadium compound' in a sentence
Meaning of "vanadium compound"
vanadium compound - This phrase refers to a chemical compound that contains vanadium as one of its elemental components. Vanadium is a transition metal often used in the manufacturing of certain metal alloys
How to use "vanadium compound" in a sentence
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vanadium compound
The proportion of vanadium compound employed is not critical.
As a source of vanadium a tetravalent or pentavalent vanadium compound may be applied.
A vanadium compound may also be included for decorative purposes.
According to the invention the vanadium compound is particularly administered intravenously.
The support is therefore not capable of spontaneously reducing a vanadium compound.
The vanadium compound so produced is then impregnated onto the carrier.
Typically the vanadium ion is made by reacting hydrogen peroxide with a vanadium compound.
The vanadium compound is a product which is soluble in the liquid hydrocarbon.
Use according to any preceding claim wherein the preparation includes a vanadium compound.
The pentavalent vanadium compound advantageously contains at least one chlorine atom.
The preferred Ziegler catalyst is prepared from a vanadium compound and an alkyl aluminum halide.
The vanadium compound can be administered at a suitable moment prior to said operation.
In addition, it is preferable to use a vanadium compound as a catalyst.
A vanadium compound is intended to mean any vanadium derivative capable of generating vanadium oxides.
A method of claim 1 wherein said vanadium compound is a vanadium oxide.
See also
The first vanadium compound may be different from the second vanadium compound.
In forming the catalyst, there is employed a reduced vanadium compound.
The first vanadium compound may be the same as the second vanadium compound.
The composition according to claim 1, wherein the vanadium compound is vanadium pentoxide.
The vanadium compound used may be a compound having vanadium with an oxidation number of 5.
A process according to claim 7, wherein an acetyl acetonate containing vanadium compound is used.
Although mentioned, the use of a vanadium compound complexed with an electron donor is never exemplified.
The catalyst comprises a dialkylmagnesium component, a zirconocene and a non-metallocene titanium and / or vanadium compound.
Forming a catalyst by premixing the reaction product of a vanadium compound and an organoaluminum compound ;.
Additionally, examples of a vanadium compound include vanadyl bisacetylacetonate, vanadyl triacetylacetonate, triethoxyvanadyl and tripropoxyvanadyl.
The present invention relates to a process for preparing a Ziegler-Natta type catalyst based on a vanadium compound.
The halogen-rich titanium or vanadium compound is preferably titanium tetrachloride, vanadium tetrachloride or vanadyl trichloride.
In a process of Claim 6 wherein the catalyst is a water-soluble vanadium compound.
The supported precursor consists essentially of a vanadium compound and modifier impregnated on a solid, inert carrier.
The vanadium compound usually used in the reaction with H ₂ O ₂ is one of the oxides.
The electron donor is a liquid, organic Lewis base in which the vanadium compound is soluble.
The vanadium compound ( D ) contributes to the corrosion resistance as an elution inhibitor ( corrosion suppressing substance ).
The process of claim 1 wherein said component ( i ) is an organic vanadium compound.
A complex between a halogenated vanadium compound and an electron-donor compound having general formula, VX ₃ · nED wherein,.
The process of claim 1 wherein said component ( i ) is an inorganic vanadium compound.
The process as defined by claim 14, wherein the vanadium compound is vanadyl bis-acetylacetonate.
Components of catalysts according to claim 1, characterized in that the halogenated vanadium compound is VCl ₃.
Composition according to claim 1 or 2, wherein the physiologically acceptable vanadium compound is bis ( maltolato ) oxovanadium.
A process according to Claim 7, wherein said vanadium compound is VCl4.
The process of claim 1, wherein the pentavalent vanadium compound is V2O5.
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