JPS6472916A - Production of baddeleyite type calcium carbonate - Google Patents
Production of baddeleyite type calcium carbonateInfo
- Publication number
- JPS6472916A JPS6472916A JP22773887A JP22773887A JPS6472916A JP S6472916 A JPS6472916 A JP S6472916A JP 22773887 A JP22773887 A JP 22773887A JP 22773887 A JP22773887 A JP 22773887A JP S6472916 A JPS6472916 A JP S6472916A
- Authority
- JP
- Japan
- Prior art keywords
- calcium carbonate
- calcium hydroxide
- salt
- amino acid
- carbon dioxide
- 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.)
- Granted
Links
Abstract
PURPOSE:To easily obtain spherical pure baddeleyite type calcium carbonate suitable for additive in coating, etc., having excellent dispersibility, etc., by adding amino acid (salt) to aq. suspension of calcium hydroxide and by blowing in carbon dioxide. CONSTITUTION:The aq. suspension of calcium hydroxide is added with amino acid or salt thereof (e.g. glycine, sodium glutamate) and thereafter, is taken part in carbonation by crushing, the baddeleyite type calcium carbonate is produced. The amt. of amino acid (salt) to be added is preferably in the weight ratio of 1/5-1 to the weight of calcium hydroxide. It is necessary that the ratio of blowing in carbon dioxide is >=5ml/min per 1g calcium hydroxide, expressed in terms of pure carbon dioxide, and the period from the start to the end of the neutralization reaction is within 90min.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22773887A JPS6472916A (en) | 1987-09-11 | 1987-09-11 | Production of baddeleyite type calcium carbonate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22773887A JPS6472916A (en) | 1987-09-11 | 1987-09-11 | Production of baddeleyite type calcium carbonate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6472916A true JPS6472916A (en) | 1989-03-17 |
JPH054340B2 JPH054340B2 (en) | 1993-01-19 |
Family
ID=16865590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22773887A Granted JPS6472916A (en) | 1987-09-11 | 1987-09-11 | Production of baddeleyite type calcium carbonate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6472916A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6132696A (en) * | 1997-06-18 | 2000-10-17 | Goldcorp Inc. | Manufacture of precipitated calcium carbonate of improved color and stable crystalline form |
JP2003063819A (en) * | 2001-08-27 | 2003-03-05 | Ube Nitto Kasei Co Ltd | Method for producing vaterite-type spherical calcium carbonate and vaterite-type spherical calcium carbonate |
US10729996B2 (en) | 2018-11-01 | 2020-08-04 | Caterpillar Inc. | Drain assembly for a housing of a filter assembly |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4835159A (en) * | 1971-08-25 | 1973-05-23 |
-
1987
- 1987-09-11 JP JP22773887A patent/JPS6472916A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4835159A (en) * | 1971-08-25 | 1973-05-23 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6132696A (en) * | 1997-06-18 | 2000-10-17 | Goldcorp Inc. | Manufacture of precipitated calcium carbonate of improved color and stable crystalline form |
JP2003063819A (en) * | 2001-08-27 | 2003-03-05 | Ube Nitto Kasei Co Ltd | Method for producing vaterite-type spherical calcium carbonate and vaterite-type spherical calcium carbonate |
US10729996B2 (en) | 2018-11-01 | 2020-08-04 | Caterpillar Inc. | Drain assembly for a housing of a filter assembly |
Also Published As
Publication number | Publication date |
---|---|
JPH054340B2 (en) | 1993-01-19 |
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