发明名称 |
ALUMINIUM HYDROXYCARBONATE GEL |
摘要 |
<p>Continuous production of aluminium hydroxycarbonate gel by continuous reaction of aluminium salt solution with mixed alkaline carbonate and bicarbonate solution under homogeneous conditions in a relatively small reaction vessel, and continuing the reaction in a subsequent reaction vessel under controlled pH. The product gel is separated from the non-aluminium cation containing reaction mixture within less than about 6 hours, whereby formation of poorly soluble addition reaction products such as dihydroxy aluminium sodium carbonate, which contribute undesired non-aluminium cations to the gel product, is reduced. The aluminium salt solution is adjusted in pH by adding to it a portion of the mixed carbonate and bicarbonate solution to obtain a clear solution of pH 3.5 to 4.0. This results in a smooth, creamy gel with less objectionable chalky mouth feel.</p> |
申请公布号 |
CA1208413(A) |
申请公布日期 |
1986.07.29 |
申请号 |
CA19830425935 |
申请日期 |
1983.04.15 |
申请人 |
WARNER-LAMBERT CANADA INC. |
发明人 |
WEN, BETTY P.L.;WRIGHT, ARTHUR P.G.;BLASER, ERIC;AMBIKE, SUHAS H. |
分类号 |
C01F7/00;(IPC1-7):C01F7/00;C01B31/24 |
主分类号 |
C01F7/00 |
代理机构 |
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代理人 |
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