CN105439101A - Preparation method of high-purity calcium peroxide - Google Patents
Preparation method of high-purity calcium peroxide Download PDFInfo
- Publication number
- CN105439101A CN105439101A CN201510994807.6A CN201510994807A CN105439101A CN 105439101 A CN105439101 A CN 105439101A CN 201510994807 A CN201510994807 A CN 201510994807A CN 105439101 A CN105439101 A CN 105439101A
- Authority
- CN
- China
- Prior art keywords
- preparation
- calcium peroxide
- purity calcium
- lime powder
- purity
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B15/04—Metal peroxides or peroxyhydrates thereof; Metal superoxides; Metal ozonides; Peroxyhydrates thereof
- C01B15/043—Metal peroxides or peroxyhydrates thereof; Metal superoxides; Metal ozonides; Peroxyhydrates thereof of alkali metals, alkaline earth metals or magnesium or beryllium or aluminium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a preparation method of high-purity calcium peroxide. The preparation method comprises the following steps: (1) weighing materials; (2) preparing and reacting; (3) carrying out suction filtering; (4) drying in vacuum; and (5) crushing. According to the preparation method of the high-purity calcium peroxide, provided by the invention, by reasonably selecting the materials and scientifically designing proportions, the purity of the prepared calcium peroxide is high; and the preparation process is simple and has no dangers to the environment.
Description
Technical field
The present invention relates to calcium peroxide preparing technical field, particularly relate to a kind of preparation method of high-purity calcium peroxide.
Background technology
Calcium peroxide is a kind of novel inorganic fine chemical product, is widely used in the industrial production, and it can prepare multi-functional, multiduty compound manure, additive, auxiliary agent etc. with other component compounds.At other field, as the industries such as agricultural and aquaculture also have important application.In culture fishery, calcium peroxide can be used as oxygen release agent, avoids causing because of water hypoxia fish growth limited, thus can improve stocking density in unit surface, increase yield.In addition in sewage treatment process, calcium peroxide also can play effect, can generate oxide compound and precipitation of hydroxide, thus reach removal object with the heavy metal ion such as Manganese in Waste Water, chromium.
The preparation method of current calcium peroxide mainly contains calcium salt method, calcium hydroxide method, air cathode method and spray method etc.Wherein calcium salt method needs to enter a large amount of ammoniacal liquor, and has a large amount of by product to produce, and the calcium peroxide purity of preparation is not high; The problems such as it is low that calcium hydroxide method mainly exists calcium hydroxide solubleness, and preparation rate is low; Air cathode method energy consumption is comparatively large, is not suitable for scale operation.It is large mainly to there is operation easier in spray method, produces dangerous high problem.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of preparation method of high-purity calcium peroxide, can solve existing calcium peroxide preparation process complicated, and the problem such as work the mischief to environment and cost is higher.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the preparation method providing a kind of high-purity calcium peroxide, comprises the steps:
(1) material takes: take hydrogen peroxide 20 ~ 30 parts, stablizer 20 ~ 25 parts, lime powder 25 ~ 35 parts by weight;
(2) preparation feedback: add the hydrogen peroxide and stablizer that take in step (1) in there-necked flask, slowly add lime powder, stirs, reacts 20 ~ 30 minutes;
(3) suction filtration: the solution suction filtration of preparation in step (2) is obtained solid;
(4) vacuum-drying: the solid in step (3) is put into vacuum drying oven drying;
(5) pulverize: dry thing obtained in step (4) is put into pulverizer and pulverizes, obtained high-purity calcium peroxide powder.
In a preferred embodiment of the present invention, described hydrogen peroxide massfraction is 40% ~ 60%.
In a preferred embodiment of the present invention, described stablizer is be the potassium primary phosphate of 1 ~ 3:2 ~ 5 mixing and the mixture of dipotassium hydrogen phosphate in mass ratio.
In a preferred embodiment of the present invention, described lime powder particle diameter is less than 100 orders.
In a preferred embodiment of the present invention, in described step (2), the Adding Way of lime powder adds for 3 times for dividing, reaction adds 1/5 of cumulative volume when starting, and reaction beginning added 2/5 of cumulative volume after 10 minutes, and reaction beginning added residue lime powder after 15 minutes; Described stir speed (S.S.) is 2000r/min.
In a preferred embodiment of the present invention, in described step (4), vacuum-drying condition is 0.10 ~ 0.20Mpa, temperature 60 ~ 80 DEG C, time 4 ~ 7h.
The invention has the beneficial effects as follows: the preparation method of a kind of high-purity calcium peroxide of the present invention, by the proportion design of material choose reasonable and science, make prepared calcium peroxide purity high, and preparation technology is simple, to environment without harm.
Embodiment
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
The embodiment of the present invention comprises:
Embodiment 1
(1) material takes: take by weight massfraction be 60% hydrogen peroxide 30 parts, be potassium primary phosphate and stablizer 25 parts, the lime powder 35 parts of dipotassium hydrogen phosphate mixture of 3:5 mixing in mass ratio;
(2) preparation feedback: add the hydrogen peroxide and stablizer that take in step (1) in there-necked flask, slowly adds particle diameter and is less than 100 object lime powders, stir with the stir speed (S.S.) of 2000r/min, reacts 30 minutes; Wherein the Adding Way of lime powder adds for 3 times for dividing, and adds 1/5 of cumulative volume when reaction starts, and reaction beginning adds 2/5 of cumulative volume after 10 minutes, and reaction beginning adds residue lime powder after 15 minutes;
(3) suction filtration: the solution suction filtration of preparation in step (2) is obtained solid;
(4) vacuum-drying: the solid in step (3) is put into vacuum drying oven, at 0.10 ~ 0.20MPa, dry 7h under the vacuum condition of 60 DEG C;
(5) pulverize: dry thing obtained in step (4) is put into pulverizer and pulverizes, obtained high-purity calcium peroxide powder.
Embodiment 2
(1) material takes: take by weight massfraction be 40% hydrogen peroxide 20 parts, be potassium primary phosphate and stablizer 20 parts, the lime powder 25 parts of dipotassium hydrogen phosphate mixture of 1:2 mixing in mass ratio;
(2) preparation feedback: add the hydrogen peroxide and stablizer that take in step (1) in there-necked flask, slowly adds particle diameter and is less than 100 object lime powders, stir with the stir speed (S.S.) of 2000r/min, reacts 20 minutes; Wherein the Adding Way of lime powder adds for 3 times for dividing, and adds 1/5 of cumulative volume when reaction starts, and reaction beginning adds 2/5 of cumulative volume after 10 minutes, and reaction beginning adds residue lime powder after 15 minutes;
(3) suction filtration: the solution suction filtration of preparation in step (2) is obtained solid;
(4) vacuum-drying: the solid in step (3) is put into vacuum drying oven, with vacuum tightness 0.10 ~ 0.20MPa, dry 4h under the vacuum condition of 80 DEG C;
(5) pulverize: dry thing obtained in step (4) is put into pulverizer and pulverizes, obtained high-purity calcium peroxide powder.
Calcium peroxide purity prepared by aforesaid method is 82.5% ~ 85%, and preparation cost can reduce about 1/4.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. a preparation method for high-purity calcium peroxide, is characterized in that, comprises the steps:
(1) material takes: take hydrogen peroxide 20 ~ 30 parts, stablizer 20 ~ 25 parts, lime powder 25 ~ 35 parts by weight;
(2) preparation feedback: add the hydrogen peroxide and stablizer that take in step (1) in there-necked flask, slowly add lime powder, stirs, reacts 20 ~ 30 minutes;
(3) suction filtration: the solution suction filtration of preparation in step (2) is obtained solid;
(4) vacuum-drying: the solid in step (3) is put into vacuum drying oven drying;
(5) pulverize: dry thing obtained in step (4) is put into pulverizer and pulverizes, obtained high-purity calcium peroxide powder.
2. the preparation method of high-purity calcium peroxide according to claim 1, is characterized in that, described hydrogen peroxide massfraction is 40% ~ 60%.
3. the preparation method of high-purity calcium peroxide according to claim 1, is characterized in that, described stablizer is be the potassium primary phosphate of 1 ~ 3:2 ~ 5 mixing and the mixture of dipotassium hydrogen phosphate in mass ratio.
4. the preparation method of high-purity calcium peroxide according to claim 1, is characterized in that, described lime powder particle diameter is less than 100 orders.
5. the preparation method of high-purity calcium peroxide according to claim 1, it is characterized in that, in described step (2), the Adding Way of lime powder adds for 3 times for dividing, reaction adds 1/5 of cumulative volume when starting, reaction beginning added 2/5 of cumulative volume after 10 minutes, and reaction beginning added residue lime powder after 15 minutes; Described stir speed (S.S.) is 2000r/min.
6. the preparation method of high-purity calcium peroxide according to claim 1, is characterized in that, in described step (4), vacuum-drying condition is: 0.10 ~ 0.20Mpa, temperature 60 ~ 80 DEG C, time 4 ~ 7h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994807.6A CN105439101A (en) | 2015-12-28 | 2015-12-28 | Preparation method of high-purity calcium peroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994807.6A CN105439101A (en) | 2015-12-28 | 2015-12-28 | Preparation method of high-purity calcium peroxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105439101A true CN105439101A (en) | 2016-03-30 |
Family
ID=55549825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510994807.6A Pending CN105439101A (en) | 2015-12-28 | 2015-12-28 | Preparation method of high-purity calcium peroxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105439101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240250A (en) * | 2019-06-06 | 2019-09-17 | 南京融众环境工程研究院有限公司 | A kind of method of degrading decabromodiphenyl ether |
| CN114634165A (en) * | 2022-01-20 | 2022-06-17 | 常熟理工学院 | Method for preparing calcium peroxide by utilizing waste incineration fly ash |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104996A (en) * | 1993-11-18 | 1995-07-12 | 董国兴 | Calcium peroxide powder and its making method |
| CN1370736A (en) * | 2001-12-13 | 2002-09-25 | 陶华西 | Preparation method of magnesium peroxide |
| CN103950899A (en) * | 2014-04-01 | 2014-07-30 | 浙江金科过氧化物股份有限公司 | Calcium peroxide preparation method |
| CN104843649A (en) * | 2014-12-16 | 2015-08-19 | 江苏金桥盐化集团有限责任公司 | Preparation method for calcium peroxide |
-
2015
- 2015-12-28 CN CN201510994807.6A patent/CN105439101A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104996A (en) * | 1993-11-18 | 1995-07-12 | 董国兴 | Calcium peroxide powder and its making method |
| CN1370736A (en) * | 2001-12-13 | 2002-09-25 | 陶华西 | Preparation method of magnesium peroxide |
| CN103950899A (en) * | 2014-04-01 | 2014-07-30 | 浙江金科过氧化物股份有限公司 | Calcium peroxide preparation method |
| CN104843649A (en) * | 2014-12-16 | 2015-08-19 | 江苏金桥盐化集团有限责任公司 | Preparation method for calcium peroxide |
Non-Patent Citations (1)
| Title |
|---|
| 丁先锋等: "过氧化钙的合成新工艺", 《化学研究》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240250A (en) * | 2019-06-06 | 2019-09-17 | 南京融众环境工程研究院有限公司 | A kind of method of degrading decabromodiphenyl ether |
| CN114634165A (en) * | 2022-01-20 | 2022-06-17 | 常熟理工学院 | Method for preparing calcium peroxide by utilizing waste incineration fly ash |
| CN114634165B (en) * | 2022-01-20 | 2023-08-29 | 常熟理工学院 | Method for preparing calcium peroxide by utilizing waste incineration fly ash |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102030354B (en) | Treatment method of waste sulfuric acid | |
| CN101172891B (en) | Fertilizer additive agent for sustained-releasing rare earth and method for producing the same | |
| CN105367226A (en) | Nanometer organic carbon fertilizer and preparation method thereof | |
| CN101531355A (en) | Method for preparing high purity ferric phosphate using ferrous sulfate as by-product of white titanium pigment | |
| CN101113115A (en) | Production method of special compound fertilizer for sugar-cane and its product | |
| CN105061116A (en) | Liquid humic acid water-soluble fertilizer production method | |
| CN101640268A (en) | Preparation method of precursor iron phosphate of cathode material lithium iron phosphate of lithium ion battery | |
| CN105885868A (en) | Efficient soil restoration agent and preparing method thereof | |
| CN102701221A (en) | Method for preparing nano white carbon black from coal gangue | |
| CN104707560A (en) | Preparation method of modified mesopore TiO2 capable of effectively removing phosphorus in wastewater | |
| CN105439101A (en) | Preparation method of high-purity calcium peroxide | |
| CN101434390B (en) | Method for producing calcium carbide and sulphuric acid using industry by-product gypsum | |
| CN102234168A (en) | Preparation and application method of mineral substance stabilizing agent for controlling releasing of phosphorus and heavy metals in dredged bottom sediment | |
| CN108070384A (en) | It is a kind of using red mud as acidic soil conditioner of matrix and preparation method thereof | |
| CN107674483A (en) | A kind of Ardealite putty powder prepared by ardealite | |
| CN107986252B (en) | Method for preparing iron phosphate by using by-product ferrophosphorus | |
| Zhang et al. | Facet-engineering strategy of phosphogypsum for production of mineral slow-release fertilizers with efficient nutrient fixation and delivery | |
| CN108690623A (en) | A kind of nickel contamination soil-repairing agent and preparation method thereof and application method | |
| CN107720789A (en) | A kind of technique for preparing pure Lithium Carbonate using battery-level lithium carbonate sinker disposing mother liquor | |
| CN107792840A (en) | A kind of method that accessory substance ferrophosphorus using industrial yellow phosphorus production prepares ferric phosphate | |
| CN106588469A (en) | Method for preparing fertilizer by adopting waste phosphate slags as raw material, and fertilizer | |
| CN106242837A (en) | A kind of preparation method of efficient compound fertilizer anticaking agent | |
| CN106083254B (en) | A kind of silicomanganese organic fertilizer and preparation method thereof based on electrolytic manganese residues | |
| CN108928853A (en) | A kind of comprehensive reutilization method of manganese ore leaching slag | |
| CN101792350B (en) | Soilless raising seedling substrate for cotton and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160330 |
|
| WD01 | Invention patent application deemed withdrawn after publication |