JPS6424059A - Antifreezing agent for cement - Google Patents
Antifreezing agent for cementInfo
- Publication number
- JPS6424059A JPS6424059A JP17910487A JP17910487A JPS6424059A JP S6424059 A JPS6424059 A JP S6424059A JP 17910487 A JP17910487 A JP 17910487A JP 17910487 A JP17910487 A JP 17910487A JP S6424059 A JPS6424059 A JP S6424059A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- antifreezing agent
- desulfurization
- waste
- cement
- 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
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
PURPOSE:To provide an antifreezing agent which does not contain chlorine, has the performance equiv. to or higher than the performance of CaCl2 and does not crystallize at a low temp. by using a material obtd. by treating the waste desulfurization liquid of a coal carbonization gas. CONSTITUTION:This antifreezing agent for cement is prepd. by adding the inorg. salt-contg. material obtd. by treating the waste desulfurization liquid of the coal carbonization gas at 0.02-5wt.% to cement in terms of solid. For example, 48% aq. NaOH soln. is added respectively to 1,000pts.wt. stock solns. of the waste desulfurization liquid withdrawn from the circulation system for desulfurization by a Takahax. Takahax-Fax combination process among the waste wet desulfurization liquids of the coal carbonization gas (coke furnace gas). While the liquid is then gradually heated (about 105-107 deg.C) under atmospheric pressure to evaporate NH3, the water is distilled and the salts are concd. A small amt. of the formed suspension is filtered off and the treated liquid is obtd. This treated liquid is used as the antifreezing agent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17910487A JPS6424059A (en) | 1987-07-20 | 1987-07-20 | Antifreezing agent for cement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17910487A JPS6424059A (en) | 1987-07-20 | 1987-07-20 | Antifreezing agent for cement |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6424059A true JPS6424059A (en) | 1989-01-26 |
Family
ID=16060096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17910487A Pending JPS6424059A (en) | 1987-07-20 | 1987-07-20 | Antifreezing agent for cement |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6424059A (en) |
-
1987
- 1987-07-20 JP JP17910487A patent/JPS6424059A/en active Pending
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