发明名称 |
Process for making bismuth-vanadium-molybdenum-containing compositions |
摘要 |
This invention relates to a process for making a bismuth-vanadium-molybdenum-containing composition comprising: (A) preparing three separate aqueous compositions comprising: a first aqueous composition having a pH in the range of about 0.5 to about 4; a second aqueous composition comprising bismuth and having a pH in the range of about 0.2 to about 3; and a third aqueous composition comprising at least one salt of vanadium and at least one salt of molybdenum and having a pH in the range of about 9 to about 14; (B) adding said second aqueous composition and said third aqueous composition simultaneously to said first aqueous composition to form a fourth aqueous composition, and maintaining said fourth aqueous composition at a temperature in the range of about 30 DEG C. to about 90 DEG C. for up to about 4 hours, said fourth aqueous composition comprising precipitated solids; (C) separating said solids from said fourth aqueous composition; and (D) heating said solids at a temperature in the range of about 250 DEG C. to about 675 DEG C. for about 0.5 to about 30 hours to provide said bismuth-vanadtum-molybdenum-containing composition. This invention also relates to bismuth-vanadium-molybdenum-containing compositions made by the foregoing process, and to colored compositions containing such bismuth-vanadium-molybdenum-containing compositions.
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申请公布号 |
US5443810(A) |
申请公布日期 |
1995.08.22 |
申请号 |
US19910690677 |
申请日期 |
1991.04.24 |
申请人 |
FERRO CORPORATION |
发明人 |
BYRNE, CHRISTINE J.;BLONSKI, ROBERT P.;WELCH, JOHN J. |
分类号 |
C01G1/02;C01G29/00;C09C1/00;C09C1/02;C09C1/22;C09C1/34;C09C1/36;(IPC1-7):C01G1/00;C01G31/00;C01G39/00 |
主分类号 |
C01G1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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