JPS57188412A - Prismatic basic aluminum sulfate and its manufacture - Google Patents
Prismatic basic aluminum sulfate and its manufactureInfo
- Publication number
- JPS57188412A JPS57188412A JP7139981A JP7139981A JPS57188412A JP S57188412 A JPS57188412 A JP S57188412A JP 7139981 A JP7139981 A JP 7139981A JP 7139981 A JP7139981 A JP 7139981A JP S57188412 A JPS57188412 A JP S57188412A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- aluminum sulfate
- basic aluminum
- manufacture
- salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
PURPOSE: To manufacture prismatic basic aluminum sulfate having novel properties by adding soluble sulfate to an aqueous soln. of basic Al salt at a specified adding rate and reacting them.
CONSTITUTION: An alkali soln. is added to a soln. of Al salt of a univalent anion so as to make the molar ratio of OH/Al in the mixed soln. 0.5W2.55. To the resulting soln. of basic Al salt represented by a general formula Al(OH)cXd (where X is the univalent anion, c+d=3, and 0.5≤c≤2.55) is added soluble sulfate so as to make the molar ratio of SO4/Al≥(3-c)/2 in a time corresponding to an adding rate at which the adding time T satisfies both of equations T≥-14c+28 and T≥1.50, and they are reacted at ≤50°C. Thus, prismatic basic aluminum sulfate represented by a general formula Al(OH)a(SO4)b.nH2O (where a+2b=3, 2.44≤a≤2.56, 0.22≤b≤0.28, and 0≤n≤10) is obtd.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7139981A JPS57188412A (en) | 1981-05-14 | 1981-05-14 | Prismatic basic aluminum sulfate and its manufacture |
US06/375,769 US4526772A (en) | 1981-05-14 | 1982-05-06 | Basic aluminum sulfate and process for production thereof |
CA000402855A CA1185767A (en) | 1981-05-14 | 1982-05-13 | Basic aluminum sulfate and process for production thereof |
GB08213953A GB2102401B (en) | 1981-05-14 | 1982-05-13 | Basic aluminum sulfate and its production |
FR828208523A FR2505809B1 (en) | 1981-05-14 | 1982-05-14 | BASIC ALUMINUM SULFATE AND PROCESS FOR PREPARING SAME |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7139981A JPS57188412A (en) | 1981-05-14 | 1981-05-14 | Prismatic basic aluminum sulfate and its manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57188412A true JPS57188412A (en) | 1982-11-19 |
Family
ID=13459391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7139981A Pending JPS57188412A (en) | 1981-05-14 | 1981-05-14 | Prismatic basic aluminum sulfate and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57188412A (en) |
-
1981
- 1981-05-14 JP JP7139981A patent/JPS57188412A/en active Pending
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