CN106006689A - Preparation method of calcium aluminate for water treatment agent - Google Patents
Preparation method of calcium aluminate for water treatment agent Download PDFInfo
- Publication number
- CN106006689A CN106006689A CN201610327161.0A CN201610327161A CN106006689A CN 106006689 A CN106006689 A CN 106006689A CN 201610327161 A CN201610327161 A CN 201610327161A CN 106006689 A CN106006689 A CN 106006689A
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- China
- Prior art keywords
- water treatment
- preparation
- calcium
- treatment agent
- calcium aluminate
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/16—Preparation of alkaline-earth metal aluminates or magnesium aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/164—Calcium aluminates
Abstract
The invention belongs to the field of water treatment agents and particularly relates to a preparation method of calcium aluminate for a water treatment agent. An aluminum source, a calcium source and sodium silicate are mixed uniformly, fired to form a finished product and subjected to ball milling. The preparation method has the beneficial effects as follows: sodium silicate is added to serve as an additive in the firing process, the firing temperature is substantially reduced, the firing time is shortened, the problem about harsh process conditions during preparation of calcium aluminate powder is solved, besides, the final product contains calcium silicate due to addition of sodium silicate, and the water treatment effect of the product is improved.
Description
Technical field
The invention belongs to water treatment agent field, particularly relate to the preparation side of a kind of water treatment agent calcium aluminate
Method.
Background technology
Aluminium salt occupies very important position, especially at Shui Chu at present chemical industry and water-purifying material industry
Reason industry, will use aluminium salt or iron salt product.
Wherein calcium aluminate is the important raw and processed materials one of aluminium salt water treatment agent.Generally calcium aluminate is by aluminium salt and calcium
Salt mixed calcining forms, and firing temperature, at about 1350 DEG C, needs to fire 3～5h.Firing temperature is higher, right
Produce equipment requirements harsher.
Summary of the invention
The defect that the calcium aluminate firing temperature that it is an object of the invention to overcome prior art to exist is higher, carries
Preparation method for a kind of water treatment agent calcium aluminate.
The technical solution adopted for the present invention to solve the technical problems is: a kind of water treatment agent calcium aluminate
Preparation method, by aluminum source, calcium source and sodium silicate mix homogeneously, fired finished product ball milling.
Further, the temperature fired described in is 800～900 DEG C.
Further, the time fired described in is 1～2h.
Specifically, described aluminum source include aluminium ore soil, aluminium oxide, aluminium hydroxide, aluminium powder, aluminium foil and
The one or more of which of aluminium sheet.
Specifically, described calcium source includes ground calcium carbonate, precipitated calcium carbonate, calcium oxide and hydroxide
One or more in calcium.
As preferably, the Al in described aluminum source and and calcium source in the mol ratio of Ca be 1:1.2～1.5.
As preferably, the quality of described sodium silicate is 0.05～0.2:1 with aluminum source, the total mass ratio in calcium source.
Beneficial effect: add sodium silicate in the application in sintering procedure as additive so that fire
Temperature is greatly reduced, and the time fired has shortened, and reduces calcium aluminate powder preparation technology bar
The problem that part is harsh；Additionally, due to the addition of sodium silicate makes to have in final products calcium silicates, have
It is beneficial to improve the water treatment efficiency of product.
Detailed description of the invention
Embodiment 1
The preparation method of a kind of water treatment agent calcium aluminate, by aluminium ore soil, ground calcium carbonate and sodium silicate
Mix homogeneously, control aluminum source Al and and calcium source in the mol ratio of Ca be 1:1.2, sodium silicate
Quality and aluminum source, calcium source always than for 0.1:1, fire 2h through 800 DEG C and prepare finished product, final ball milling
It is 220～280 mesh to particle diameter.
Embodiment 2
The preparation method of a kind of water treatment agent calcium aluminate, by aluminium oxide, precipitated calcium carbonate and sodium silicate
Mix homogeneously, control aluminum source Al and and calcium source in the mol ratio of Ca be 1:1.5, sodium silicate
Quality is 0.2:1 with aluminum source, the total mass ratio in calcium source, fires 1h through 900 DEG C and prepares finished product, finally
Being milled to particle diameter is 220～280 mesh.
Embodiment 3
A kind of preparation method of water treatment agent calcium aluminate, by the mixing of aluminium foil, calcium oxide and sodium silicate all
Even, control aluminum source Al and and calcium source in the mol ratio of Ca be 1:1.3, the quality of sodium silicate with
Aluminum source, calcium source always than for 0.05:1, fire 1.5h through 850 DEG C and prepare finished product, be finally milled to
Particle diameter is 220～280 mesh.
Embodiment 4
A kind of preparation method of water treatment agent calcium aluminate, by the mixing of aluminium foil, calcium oxide and sodium silicate all
Even, control aluminum source Al and and calcium source in the mol ratio of Ca be 1:1.4, the quality of sodium silicate with
Aluminum source, calcium source always than for 0.15:1, fire 1.5h through 900 DEG C and prepare finished product, be finally milled to
Particle diameter is 220～280 mesh.
Comparative example 1
Sodium silicate component in embodiment 1 is removed, and firing condition is replaced with 1300 DEG C fires 4h,
Other conditions are with embodiment 1.
Comparative example 2
Sodium silicate in embodiment 1 replaces with the Borax of equivalent, and other conditions are with embodiment 1,
Prepare product eventually.
The product prepared in various embodiments above and comparative example is carried out alumina leaching amount detection (test
Standard GB/T29341-2012), structure is as shown in table 1.
Table 1
According to water treatment agent calcium aluminate national standard (GB/T29341-2012) test rating aluminium oxide
Dissolution rate >=90.91%, it is seen that the digesting efficiency of alumina of calcium aluminate powder prepared by the inventive method is high, alive
Property high, utilization rate high, it is adaptable to the production of aluminium salt water purification agent.By embodiment 1 and comparative example 1 data
Understanding, in the application, preparation method firing temperature is low, the time is short, can meet or exceed tradition system
The effect of Preparation Method, compares with comparative example 2 data simultaneously and understands, compared to conventional auxiliary agent, silicic acid
Sodium effect is more preferable.
The product of preparation and hydrochloric acid reaction in the various embodiments described above and comparative example is utilized to prepare polychlorostyrene
Change aluminum water treatment agent, be specially and hydrochloric acid is mixed with the mass ratio of 50:7 with the calcium aluminate powder of preparation,
Logical steam is warming up at 100 DEG C, is incubated 1.5h, and then filter pressing obtains aluminium polychlorid water treatment agent,
Each aluminium polychlorid inorganic agent is as shown in table 2 below to the treatment effect of water,
Table 2
Wherein raw water turbidity is 65.70NTU, and pH value is 7.9, and former coolant-temperature gage is 25 DEG C, respectively implements
The aluminium polychlorid water treatment agent concentration that example and comparative example prepare is that 1mg/mL is (with Al2O3Effective content
Meter), coagulation mixing time is 10min, precipitation 5min, GT value 32130 (GB15892-2009).
Should be appreciated that specific embodiment described above is only used for explaining the present invention, be not used to limit
Determine the present invention.The obvious change extended out by the spirit of the present invention or variation are still in this
Among bright protection domain.
Claims (7)
1. the preparation method of a water treatment agent calcium aluminate, it is characterised in that: by aluminum source, calcium source
With sodium silicate mix homogeneously, fired finished product ball milling.
The preparation method of water treatment agent calcium aluminate the most according to claim 1, its feature exists
In: described in the temperature fired be 800～900 DEG C.
The preparation method of water treatment agent calcium aluminate the most according to claim 1, its feature exists
In: described in time of firing be 1～2h.
The preparation method of water treatment agent calcium aluminate the most according to claim 1, its feature exists
In: described aluminum source includes its of aluminium ore soil, aluminium oxide, aluminium hydroxide, aluminium powder, aluminium foil and aluminium sheet
In one or more.
The preparation method of water treatment agent calcium aluminate the most according to claim 1, its feature exists
In: described calcium source includes in ground calcium carbonate, precipitated calcium carbonate, calcium oxide and calcium hydroxide
Plant or multiple.
The preparation method of water treatment agent calcium aluminate the most according to claim 1, its feature exists
Al in: described aluminum source and and calcium source in the mol ratio of Ca be 1:1.2～1.5.
7., according to the preparation method of the water treatment agent calcium aluminate described in claim 1 or 6, it is special
Levy and be: the quality of described sodium silicate is 0.05～0.2:1 with aluminum source, the total mass ratio in calcium source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610327161.0A CN106006689B (en) | 2016-05-17 | 2016-05-17 | A kind of preparation method of water treatment agent calcium aluminate |
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| CN201610327161.0A CN106006689B (en) | 2016-05-17 | 2016-05-17 | A kind of preparation method of water treatment agent calcium aluminate |
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| CN106006689A true CN106006689A (en) | 2016-10-12 |
| CN106006689B CN106006689B (en) | 2017-08-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747512A (en) * | 2016-12-15 | 2017-05-31 | 武汉科技大学 | A kind of titanium Calcium aluminates powder and preparation method thereof |
| CN111634933A (en) * | 2020-05-27 | 2020-09-08 | 中铝山东有限公司 | Method for preparing calcium aluminate by using PAC acid waste residues and calcium aluminate |
| CN112919514A (en) * | 2021-03-25 | 2021-06-08 | 常州清流环保科技有限公司 | Preparation method of high-purity calcium aluminate for producing water treatment agent by using waste anthraquinone regenerant |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109775738A (en) * | 2019-03-28 | 2019-05-21 | 李风亭 | A method of preparing high purity calcium aluminate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708513A (en) * | 2013-09-02 | 2014-04-09 | 常州市清流水处理剂有限公司 | High purity composite alumina powder for water treatment agent |
| CN104261446A (en) * | 2014-09-29 | 2015-01-07 | 遵义市恒新化工有限公司 | High-purity calcium aluminate powder for production of purifying agents |
-
2016
- 2016-05-17 CN CN201610327161.0A patent/CN106006689B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708513A (en) * | 2013-09-02 | 2014-04-09 | 常州市清流水处理剂有限公司 | High purity composite alumina powder for water treatment agent |
| CN104261446A (en) * | 2014-09-29 | 2015-01-07 | 遵义市恒新化工有限公司 | High-purity calcium aluminate powder for production of purifying agents |
Non-Patent Citations (2)
| Title |
|---|
| YU HAIYAN，ET AL.: "Effect of Na2O on formation of calcium aluminates in CaO−Al2O3−SiO2system", 《TRANS. NONFERROUS MET. SOC. CHINA》 * |
| 张迪等: "低配钙CaO-Al2O3-SiO2系烧结物相形成规律", 《轻金属》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747512A (en) * | 2016-12-15 | 2017-05-31 | 武汉科技大学 | A kind of titanium Calcium aluminates powder and preparation method thereof |
| CN111634933A (en) * | 2020-05-27 | 2020-09-08 | 中铝山东有限公司 | Method for preparing calcium aluminate by using PAC acid waste residues and calcium aluminate |
| CN111634933B (en) * | 2020-05-27 | 2022-08-30 | 中铝山东有限公司 | Method for preparing calcium aluminate by using PAC (polyaluminium chloride) acid waste residues and calcium aluminate |
| CN112919514A (en) * | 2021-03-25 | 2021-06-08 | 常州清流环保科技有限公司 | Preparation method of high-purity calcium aluminate for producing water treatment agent by using waste anthraquinone regenerant |
| CN112919514B (en) * | 2021-03-25 | 2023-12-26 | 常州清流环保科技有限公司 | Preparation method of high-purity calcium aluminate for producing water treatment agent by using waste anthraquinone regenerant |
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| CN106006689B (en) | 2017-08-25 |
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