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    • 3. 发明授权
    • Preparation of phosphomolybdovanadate polyoxoanions
    • 磷钼钒酸盐聚氧阴离子的制备
    • US5792721A
    • 1998-08-11
    • US336622
    • 1994-11-09
    • John H. GrateDavid R. HammRobert J. Saxton
    • John H. GrateDavid R. HammRobert J. Saxton
    • B01J27/199B01J27/18B01J37/04B01J37/28
    • B01J23/002B01J27/199B01J2523/00
    • The present invention provides a process for the preparation of acidic aqueous solutions consisting essentially of, phosphomolybdovanadate salts. Certain processes of the present invention dissolve in water an oxide, oxoacid, or mixtures thereof, and at least one oxoanion salt of phosphorus, molybdenum, and vanadium, wherein the sum of salt cationic charges does not exceed the sum of the phosphomolybdovanadate anionic charges in the solution. Other processes of the present invention dissolve in water a) an oxide, oxoacid, oxoanion salt, or mixtures thereof of phosphorus, molybdenum, and vanadium and b) a carbonate salt, bicarbonate salt, hydroxide salt or mixtures thereof, wherein the sum of salt cationic charges does not exceed the sum of the phosphomolybdovanadate anionic charges in the solution. The present invention also provides processes for the preparation of solid phosphomolybdovanadate salts by evaporating the so-produced aqueous solutions to recover essentially all the dissolved phosphomolybdovanadate salt in solid form.
    • 本发明提供了一种制备基本上由磷钼钒酸盐组成的酸性水溶液的方法。 本发明的某些方法在水中溶解氧化物,含氧酸或其混合物,以及磷,钼和钒的至少一种氧阴离子盐,其中盐阳离子电荷的总和不超过磷钼钒酸盐阴离子电荷的总和 解决方案。 本发明的其它方法溶解于水中a)氧,氧酸,氧代阴离子盐或其磷,钼和钒的混合物,和b)碳酸盐,碳酸氢盐,氢氧化物盐或其混合物,其中盐的总和 阳离子电荷不超过溶液中磷钼钒酸盐阴离子电荷的总和。 本发明还提供通过蒸发所产生的水溶液以固体形式回收所有溶解的磷钼钒酸盐的方法来制备固体磷钼钒酸盐。