Polyoxometalate and method for producing polyoxometalate

Patent metadata

Field	Value
Publication number	US-2018065862-A1
Application number	US-201615563443-A
Country	US
Kind code	A1
Filing date	Mar 30, 2016
Priority date	Mar 31, 2015
Publication date	Mar 8, 2018
Grant date	—

Abstract

Provided is a novel polyoxometalate and a method for producing the polyoxometalate. The polyoxometalate is represented by the compositional formula: M x O y in which M is tungsten, molybdenum or vanadium; 4≦x≦1000; and 2.5≦y/x≦7.

First claim

1 . A polyoxometalate represented by the compositional formula: M x O y in which M is tungsten, molybdenum or vanadium; 4≦x≦1000; and 2.5≦y/x≦7.

2 . A polyoxometalate represented by the compositional formula: M x O y N z in which M is tungsten, molybdenum or vanadium; 4≦x≦1000; 2.5≦y/x≦7; and 0.5≦z/x≦2.

3 . A method for producing a polyoxometalate, comprising:
subjecting a raw material mixture comprising at least one valuable containing tungsten, molybdenum or vanadium to electrolysis using an organic electrolytic solution to dissolve tungsten, molybdenum or vanadium in the electrolytic solution; and adding a poor solvent to the electrolytic solution in which tungsten, molybdenum or vanadium has been dissolved, to produce a polyoxometalate of tungsten, molybdenum or vanadium.

4 . The method for producing the polyoxometalate according to claim 3 , wherein the poor solvent is an alcohol, an acetone, an ether, an amine or an ester.

5 . The method for producing the polyoxometalate according to claim 3 , wherein the organic electrolytic solution is an organic alkaline electrolytic solution.

6 . The method for producing the polyoxometalate according to claim 5 , wherein the organic alkaline electrolytic solution contains at least one alcohol amine.

7 . The method for producing the polyoxometalate according to claim 6 , wherein the at least one alcohol amine is monoethanolamine and/or triethanolamine.

8 . The method for producing the polyoxometalate according to claim 6 , wherein a concentration of the alcohol amine in the electrolytic solution is from 1 to 80% by mass.

9 . The method for producing the polyoxometalate according to claim 3 , wherein the raw material mixture contains from 1 to 30% by mass of at least one valuable other than tungsten, molybdenum or vanadium.

10 . The method for producing the polyoxometalate according to claim 9 , wherein the raw material mixture contains from 1 to 10% by mass of at least one valuable other than tungsten, molybdenum or vanadium.

11 . The method for producing the polyoxometalate according to claim 10 , wherein the raw material mixture contains from 3 to 10% by mass of at least one valuable other than tungsten, molybdenum or vanadium.

12 . The method for producing the polyoxometalate according to claim 3 , wherein the electrolysis is carried out by adjusting a temperature of the electrolytic solution to 20 to 80° C.

13 . The method for producing the polyoxometalate according to claim 5 , wherein the electrolytic solution has a pH of 7 or more.

14 . The method for producing the polyoxometalate according to claim 3 , wherein an anode used for the electrolysis is a titanium basket provided with the raw material mixture containing the at least one valuable containing tungsten, molybdenum or vanadium.

15 . The method for producing the polyoxometalate according to claim 4 , wherein the organic electrolytic solution is an organic alkaline electrolytic solution.

16 . The method for producing the polyoxometalate according to claim 7 , wherein a concentration of the alcohol amine in the electrolytic solution is from 1 to 80% by mass.

17 . The method for producing the polyoxometalate according to claim 4 , wherein the raw material mixture contains from 1 to 30% by mass of at least one valuable other than tungsten, molybdenum or vanadium.

18 . The method for producing the polyoxometalate according to claim 5 , wherein the raw material mixture contains from 1 to 30% by mass of at least one valuable other than tungsten, molybdenum or vanadium.

19 . The method for producing the polyoxometalate according to claim 6 , wherein the raw material mixture contains from 1 to 30% by mass of at least one valuable other than tungsten, molybdenum or vanadium.

20 . The method for producing the polyoxometalate according to claim 7 , wherein the raw material mixture contains from 1 to 30% by mass of at least one valuable other than tungsten, molybdenum or vanadium.

Assignees

• Jx Nippon Mining & Metals Corp

Inventors

• Kawamura Toshifumi

Classifications

• C25C1/10

  of chromium or manganese · CPC title

• C01G39/006

  Compounds containing molybdenum, with or without oxygen or hydrogen, and containing two or more other elements · CPC title

• C25C7/02

  Electrodes (consumable anodes for the refining the metals C25C1/00 - C25C5/00); Connections thereof · CPC title

• C01B21/0821 Primary

  Oxynitrides of metals, boron or silicon · CPC title

• C25C1/08

  of nickel or cobalt · CPC title