CN102674422A - Method for preparing flocculant liquid polyaluminum chloride from aluminum ash - Google Patents
Method for preparing flocculant liquid polyaluminum chloride from aluminum ash Download PDFInfo
- Publication number
- CN102674422A CN102674422A CN2012101592939A CN201210159293A CN102674422A CN 102674422 A CN102674422 A CN 102674422A CN 2012101592939 A CN2012101592939 A CN 2012101592939A CN 201210159293 A CN201210159293 A CN 201210159293A CN 102674422 A CN102674422 A CN 102674422A
- Authority
- CN
- China
- Prior art keywords
- liquid
- aluminium
- ash
- water
- volume ratio
- 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
Abstract
The invention discloses a method for preparing flocculant liquid polyaluminum chloride from aluminum ash, belonging to the technical field of solid waste treatment environment protection. The method comprises the following steps: uniformly mixing and stirring aluminum ash and water in a volume ratio of 1:(3-5), and soaking for 5-8 hours; pumping the solution into a reaction kettle, adding hydrochloric acid and water in an aluminum ash/hydrochloric acid/water volume ratio of 1:(2.5-3.0):(3.0-4.0), and reacting at 85-100 DEG C for 2-3 hours; carrying out solid-liquid separation with a plate and frame type filter-press, and adding a regulator to regulate the aluminum oxide content and basicity of the liquid, wherein if quicklime is used as the regulator, the volume ratio of the liquid to the quicklime is 1:(0.054-0.086), if aluminum dust is used as the regulator, the volume ratio of the liquid to the aluminum dust is 1:(0.023-0.04), and if solid calcium aluminate is used as the regulator, the volume ratio of the liquid to the solid calcium aluminate is 1:(0.042-0.063); and standing and aging for 48-72 while controlling the temperature at 50-60 DEG C, thereby obtaining the liquid polyaluminum chloride finished product. The invention has the advantages of simple technique, low cost and no secondary pollution, and is a good method for recycling aluminum ash.
Description
Technical field
The present invention relates to the preparation method of flocculation agent liquid aluminium polychloride, especially relate to a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride.
Background technology
In aluminum smelting technology, moulding process, can produce multiple sub product.As the main sub product of aluminium processing industry, the aluminium ash results from all aluminium generation fused operations, and aluminium content wherein accounts for 1%～12% of total losses amount in the aluminium production use.Along with the expansion day by day of metallic aluminium range of application, the generation of aluminium ash also will grow proportionately.Past people is regarded the aluminium ash as waste residue and pile up like a mountain everywhere; Soil and ecotope have been caused very big pressure, can decomposite ammonia after the aluminium nitride AlN in the aluminium ash makes moist in addition in air, breath malodor is unpleasant; And toxic, also can cause bigger pollution to atmosphere.This measure not only causes aluminium resource waste also can bring environmental problem, and the problem of environmental pollution that the aluminium ash is caused has restricted further developing of aluminium processing industry, becomes a great problem that perplexs aluminium processing enterprise for many years.Therefore, seek cost-effective method and be used and administer the aluminium ash, not only will improve the economic benefit of aluminium industry, when realizing the resources effective recycle, also will produce significant effects the Sustainable development that realizes economy, society.
The concrete composition of aluminium ash is different different because of producing the path, mainly is made up of the mixture of metallic aluminium simple substance, oxide compound and salt flux.Wherein, metallic aluminium exists under the coating of aluminum oxide and aluminium nitride AlN.Concrete content is Al:10%～30%, Al
2O
3: 20%～40%, Si, Mg, Fe oxide compound: 7%～15%, the muriate of K, Na, Ca, Mg: 15%～30% with the trace fluorochemical and residue.In fact, contain higher renewable resources in the aluminium ash, single with aluminum oxide calculating, alumina content reaches 20%～40% approximately, if can be used, and turns waste into wealth, and not only has good economic benefit, and has good environment and ecological benefits.
At present existing people attempts utilizing aluminium ash processing aluminium salt, and main method is to adopt hydrochloric acid to process aluminium chlorohydroxide.Because the aluminum oxide phase inversion becomes αYang Hualv under the high temperature, is insoluble to bronsted lowry acids and bases bronsted lowry, therefore; This method has only been utilized a spot of metallic aluminium in the aluminium ash; A large amount of aluminum oxide is not utilized well, not only cause the waste of resource, and employed hydrochloric acid also can cause secondary pollution to environment.Simultaneously, from the aluminium ash, reclaim soluble salt (like fluoride salt and NaCI, KCI etc.) and mainly be, contain a large amount of soluble salts in this aluminium ash to the two secondary aluminiums ashes (grey black or salt-cake) that reclaim through molten-salt growth method behind the metallic aluminium.Its recovery method mainly is that method such as dissolving or employing electrodialysis or control pH value makes the salt dissolving in the aluminium ash under HTHP, then through filtering purification with its recovery.The shortcoming of this method is to produce a large amount of waste liquids, and the aluminium ash that extracts behind the soluble salt also can pollute as reclaiming without additive method.
In addition, the method with aluminium ash synthesizing aluminate (being mainly sodium aluminate and calcium aluminate) is that the aluminium ash behind the removal soluble salt is dissolved in NaOH, metallic aluminium in the aluminium ash and Al
2O
3Generate sodium aluminate with the NaOH reaction, filtering then purifies just can obtain the sodium aluminate product together.With the synthetic calcium aluminate of aluminium ash then is that aluminium ash and CaO are passed through high-temperature calcination together, finally obtains calcium aluminate.Its shortcoming is that the production technique power consumption is big, is prone to produce secondary pollution.
Also have the people from the aluminium ash, to reclaim aluminum oxide, in its production process during adding acid-respons controlled temperature about 90 ℃, sulfuric acid concentration 30%, the amount of dissolving in aluminium ash be 10% o'clock can stripping aluminium ash in 88% aluminum oxide.Though this method can reduce manufacturing cost of aluminum oxide, technology is complicated, can produce obnoxious flavoures such as ammonia, methane during washing, and produce a large amount of waste liquids, as not dealing carefully with environment is caused serious threat.
In addition, the somebody is a raw material synthetic water purification agent Tai-Ace S 150 with aluminium ash (mainly referring to two secondary aluminiums ash).Tai-Ace S 150 can remove impurity such as phosphoric acid salt in anhydrating, zinc, chromium, but and degerming, the color and the smell of control water.Its method is before aluminium ash and sulfuric acid reaction, to remove the soluble salt in the aluminium ash earlier, and the sour concentration of control is 50%, 90 ℃ of following stirring and dissolving 1 hour, and can be with 95% Al in the aluminium ash
2O
3Stripping.Its shortcoming is that the aluminium ash can produce obnoxious flavoures such as ammonia, hydrogen, methane with sulfuric acid reaction the time.
At last, also have the researchist to utilize aluminium ash synthetic fire resistive material and material of construction, as produce brown corundum, preparation fused corundom or magnesium aluminate spinel compoud, synthetic Sialon composite ceramics, produce ceramic gaged brick, be used for refractory castable and prefabricated section etc.Can also be used to pave the way etc.
In a word, contain the material that many meetings directly or indirectly work the mischief to environment in the aluminium ash, directly abandon and to cause environmental pollution.Simultaneously, the aluminium ash is again a kind of renewable resources with comprehensive utilization value, therefrom can reclaim aluminium, salt, and aluminum oxide also can synthesize water purification agent, can also be used for aspects such as refractory materials, road usefulness and material of construction, steel desulfurization agent.The recoverying and utilizing method of aluminium ash is a lot, should be according to practical situation comprehensive treating process as far as possible, and according to high-recovery, higher economic benefit with do not cause the principle of secondary pollution to select.Realize the comprehensive utilization of aluminium ash, can turn waste into wealth, protect environment, can reduce production cost of products again, demonstrate fully the theory of environmental protection.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride; Not only can effectively utilize aluminium ash preparation flocculation agent liquid aluminium polychloride; Can also eliminate of the pollution of aluminium ash effectively, and avoid in the course of processing, environment being caused secondary pollution environment.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride, and it may further comprise the steps: 1. the aluminium ash is carried out mixing and stirring with water 1: 3 by volume～5, soaked 5～8 hours; 2. extract supernatant liquid to settling tank, handle the back reuse, the remaining aluminium ash after washing is extracted to reaction kettle with pump; 3. aluminium ash by volume: hydrochloric acid: water is to add hydrochloric acid and water in 1: 2.5～3.0: 3.0～4.0 the aluminium ashes after washing, and the formation mixed solution stirs; 4. temperature of reaction kettle is set to 85～100 ℃, reacts 2～3 hours; 5. the gas that produces in the reaction process adopts the absorption tower to spray absorption, and spray liquid adopts clear water, and absorption liquid is back to and continues reaction in the reaction kettle; 6. adopt plate and frame(type)filter press to carry out solid-liquid separation reacted mixed solution, can be used as manufacture of cement addition material or brick-making raw material after waste residue is air-dry; 7. extract isolated liquid to equalizing tank; Add regulator and regulate liquid alumina content and basicity, as adopting unslaked lime, liquid: it is 1: 0.054～0.086 that unslaked lime adds volume ratio; If adopt the aluminium bits; Liquid: it is 1: 0.023～0.04 that the aluminium bits add volume ratio, if adopt the solid calcium aluminate, liquid: it is 1: 0.042～0.063 that the solid calcium aluminate adds volume ratio; 8. will place plastic containers to leave standstill through the solution after regulating, temperature be controlled at 50～60 ℃, and the curing time is 48～72 hours, promptly gets flocculation agent liquid aluminium polychloride finished product.
1. aluminium ash and water 1: 3 by volume～5 are carried out mixing and stirring in step in, soaked 5～8 hours.
3. be the ash of aluminium by volume in step: hydrochloric acid: water is 1: 2.5～3.0: 3.0～4.0 in reaction kettle, to add hydrochloric acid and water, and the formation mixed solution stirs.
Step 4. in temperature of reaction kettle be set to 85～100 ℃, reacted 2～3 hours.
5. the gas that produces in reaction process in step adopts the absorption tower to absorb, and spray liquid adopts clear water, continues reaction in the absorption liquid back flow reaction still.
6. adopt plate and frame(type)filter press to carry out solid-liquid separation reacted mixed solution in step in, can be used as manufacture of cement addition material or brick-making raw material after waste residue is air-dry.
7. be extraction isolated liquid to equalizing tank in step; Add regulator and regulate liquid alumina content and basicity, as adopting unslaked lime, liquid: it is 1: 0.054～0.086 that unslaked lime adds volume ratio; If adopt the aluminium bits; Liquid: it is 1: 0.023～0.04 that the aluminium bits add volume ratio, if adopt the solid calcium aluminate, liquid: it is 1: 0.042～0.063 that the solid calcium aluminate adds volume ratio.
8. will place plastic containers to leave standstill in step through the solution after regulating in, temperature be controlled at 50～60 ℃, and the curing time is 48～72 hours, promptly gets flocculation agent liquid aluminium polychloride finished product.
Compared with prior art; The invention has the advantages that and use a step acid pasting to extract the aluminium in the aluminium ash; Make aluminum oxide and pure aluminum and hydrochloric acid soln in the aluminium ash in self thermopositive reaction and generate aluminum chloride; Mixed solution with aluminum chloride carries out solid-liquid separation then, can prepare the inorganic polymer flocculant liquid aluminium polychloride through overregulating slaking.Not only method is simple, and is easy and simple to handle, and with respect to the existing working method of alum clay for feedstock production flocculant poly aluminum chloride of utilizing; Need not pulverize alum clay, with low cost, the whole aluminium compositions in the aluminium ash all can be extracted; Not only renewable resource can be made full use of, also secondary pollution can be do not produced.And the waste residue that solid-liquid separation obtains can be used as manufacture of cement addition material or brick-making raw material after air-dry, and back to nature can not cause any pollution to environment; What produce in the employing cold water spray absorption reaction process is the gas of major ingredient with HCl, and carries out continuing in the absorption liquid back flow reaction still reaction, effectively reuse, thus avoid process gas that environment is caused secondary pollution.Simultaneously, the liquid flocculant poly aluminum chloride that this process method is produced, traditional relatively solid polyaluminium chloride; Can be widely used in the industrial sewages processing such as papermaking, printing and dyeing, chemical industry, and need not prepare, promptly throw and promptly use; Flexibility is strong, uses conveniently, and technology is easier; Production cost is lower, and application prospect is wider.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Below in conjunction with accompanying drawing; Through instance the present invention is done further explain: present embodiment is being to implement under the prerequisite with technical scheme of the present invention; Provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment one: a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride, and it may further comprise the steps: 1. the aluminium ash was carried out mixing and stirring in 1: 3 by volume with water, soaked 8 hours; 2. extract supernatant liquid to settling tank, handle the back reuse, the remaining aluminium ash after washing is extracted to reaction kettle with pump; 3. aluminium ash by volume: hydrochloric acid: water is to add hydrochloric acid and water in the aluminium ash after washing at 1: 2.5: 3.0, and the formation mixed solution stirs; 4. temperature of reaction kettle is set to 85 ℃, reacts 2.5 hours; 5. the gas that produces in the reaction process adopts the absorption tower to spray absorption, and spray liquid adopts clear water, and absorption liquid is back to and continues reaction in the reaction kettle; 6. adopt plate and frame(type)filter press to carry out solid-liquid separation reacted mixed solution, can be used as manufacture of cement addition material or brick-making raw material after waste residue is air-dry; 7. extract isolated liquid to equalizing tank, add regulator and regulate liquid alumina content and basicity, adopt unslaked lime, liquid: it is 1: 0.062 that unslaked lime adds volume ratio; 8. will place plastic containers to leave standstill through the solution after regulating, temperature be controlled at 50 ℃, and the curing time is 72 hours, promptly gets flocculation agent liquid aluminium polychloride finished product.
Embodiment two: a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride, and it may further comprise the steps: 1. the aluminium ash was carried out mixing and stirring in 1: 4 by volume with water, soaked 7 hours; 2. extract supernatant liquid to settling tank, handle the back reuse, the remaining aluminium ash after washing is extracted to reaction kettle with pump; 3. aluminium ash by volume: hydrochloric acid: water is to add hydrochloric acid and water in the aluminium ash after washing at 1: 3.0: 4.0, and the formation mixed solution stirs; 4. temperature of reaction kettle is set to 90 ℃, reacts 3 hours; 5. the gas that produces in the reaction process adopts the absorption tower to spray absorption, and spray liquid adopts clear water, and absorption liquid is back to and continues reaction in the reaction kettle; 6. adopt plate and frame(type)filter press to carry out solid-liquid separation reacted mixed solution, can be used as manufacture of cement addition material or brick-making raw material after waste residue is air-dry; 7. extract isolated liquid to equalizing tank, add regulator and regulate liquid alumina content and basicity, adopt the aluminium bits, liquid: it is 1: 0.04 that the aluminium bits add volume ratio; 8. will place plastic containers to leave standstill through the solution after regulating, temperature be controlled at 60 ℃, and the curing time is 48 hours, promptly gets flocculation agent liquid aluminium polychloride finished product.
Embodiment three: a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride, and it may further comprise the steps: 1. the aluminium ash was carried out mixing and stirring in 1: 5 by volume with water, soaked 5 hours; 2. extract supernatant liquid to settling tank, handle the back reuse, the remaining aluminium ash after washing is extracted to reaction kettle with pump; 3. aluminium ash by volume: hydrochloric acid: water is to add hydrochloric acid and water in the aluminium ash after washing at 1: 2.5: 3.5, and the formation mixed solution stirs; 4. temperature of reaction kettle is set to 100 ℃, reacts 2 hours; 5. the gas that produces in the reaction process adopts the absorption tower to spray absorption, and spray liquid adopts clear water, and absorption liquid is back to and continues reaction in the reaction kettle; 6. adopt plate and frame(type)filter press to carry out solid-liquid separation reacted mixed solution, can be used as manufacture of cement addition material or brick-making raw material after waste residue is air-dry; 7. extract isolated liquid to equalizing tank, add regulator and regulate liquid alumina content and basicity, adopt the solid calcium aluminate, liquid: it is 1: 0.053 that the solid calcium aluminate adds volume ratio; 8. will place plastic containers to leave standstill through the solution after regulating, temperature be controlled at 55 ℃, and the curing time is 60 hours, promptly gets flocculation agent liquid aluminium polychloride finished product.
Embodiment four: a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride, and it may further comprise the steps: 1. the aluminium ash was carried out mixing and stirring in 1: 3.5 by volume with water, soaked 7.5 hours; 2. extract supernatant liquid to settling tank, handle the back reuse, the remaining aluminium ash after washing is extracted to reaction kettle with pump; 3. aluminium ash by volume: hydrochloric acid: water is to add hydrochloric acid and water in the aluminium ash after washing at 1: 2.8: 3.5, and the formation mixed solution stirs; 4. temperature of reaction kettle is set to 90 ℃, reacts 2.7 hours; 5. the gas that produces in the reaction process adopts the absorption tower to spray absorption, and spray liquid adopts clear water, and absorption liquid is back to and continues reaction in the reaction kettle; 6. adopt plate and frame(type)filter press to carry out solid-liquid separation reacted mixed solution, can be used as manufacture of cement addition material or brick-making raw material after waste residue is air-dry; 7. extract isolated liquid to equalizing tank, add regulator and regulate liquid alumina content and basicity, adopt unslaked lime, liquid: it is 1: 0.076 that unslaked lime adds volume ratio; 8. will place plastic containers to leave standstill through the solution after regulating, temperature be controlled at 50 ℃, and the curing time is 72 hours, promptly gets flocculation agent liquid aluminium polychloride finished product.
Embodiment five: a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride, and it may further comprise the steps: 1. the aluminium ash was carried out mixing and stirring in 1: 4.5 by volume with water, soaked 6.5 hours; 2. extract supernatant liquid to settling tank, handle the back reuse, the remaining aluminium ash after washing is extracted to reaction kettle with pump; 3. aluminium ash by volume: hydrochloric acid: water is to add hydrochloric acid and water in the aluminium ash after washing at 1: 2.6: 3.2, and the formation mixed solution stirs; 4. temperature of reaction kettle is set to 100 ℃, reacts 2.5 hours; 5. the gas that produces in the reaction process adopts the absorption tower to spray absorption, and spray liquid adopts clear water, and absorption liquid is back to and continues reaction in the reaction kettle; 6. adopt plate and frame(type)filter press to carry out solid-liquid separation reacted mixed solution, can be used as manufacture of cement addition material or brick-making raw material after waste residue is air-dry; 7. extract isolated liquid to equalizing tank, add regulator and regulate liquid alumina content and basicity, adopt the aluminium bits, liquid: it is 1: 0.035 that the aluminium bits add volume ratio; 8. will place plastic containers to leave standstill through the solution after regulating, temperature be controlled at 60 ℃, and the curing time is 64 hours, promptly gets flocculation agent liquid aluminium polychloride finished product.
Embodiment six: a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride, and it may further comprise the steps: 1. the aluminium ash was carried out mixing and stirring in 1: 5 by volume with water, soaked 5 hours; 2. extract supernatant liquid to settling tank, handle the back reuse, the remaining aluminium ash after washing is extracted to reaction kettle with pump; 3. aluminium ash by volume: hydrochloric acid: water is to add hydrochloric acid and water in the aluminium ash after washing at 1: 2.7: 3.8, and the formation mixed solution stirs; 4. temperature of reaction kettle is set to 85 ℃, reacts 2.9 hours; 5. the gas that produces in the reaction process adopts the absorption tower to spray absorption, and spray liquid adopts clear water, and absorption liquid is back to and continues reaction in the reaction kettle; 6. adopt plate and frame(type)filter press to carry out solid-liquid separation reacted mixed solution, can be used as manufacture of cement addition material or brick-making raw material after waste residue is air-dry; 7. extract isolated liquid to equalizing tank, add regulator and regulate liquid alumina content and basicity, adopt the solid calcium aluminate, liquid: it is 1: 0.057 that the solid calcium aluminate adds volume ratio; 8. will place plastic containers to leave standstill through the solution after regulating, temperature be controlled at 60 ℃, and the curing time is 48 hours, promptly gets flocculation agent liquid aluminium polychloride finished product.
Claims (8)
1. a method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride is characterized in that it may further comprise the steps: 1. the aluminium ash is carried out mixing and stirring with water 1: 3 by volume～5, soaked 5～8 hours; 2. extract supernatant liquid to settling tank, handle the back reuse, the remaining aluminium ash after washing is extracted to reaction kettle with pump; 3. aluminium ash by volume: hydrochloric acid: water is to add hydrochloric acid and water in 1: 2.5～3.0: 3.0～4.0 the aluminium ashes after washing, and the formation mixed solution stirs; 4. temperature of reaction kettle is set to 85～100 ℃, reacts 2～3 hours; 5. the gas that produces in the reaction process adopts the absorption tower to spray absorption, and spray liquid adopts clear water, and absorption liquid is back to and continues reaction in the reaction kettle; 6. adopt plate and frame(type)filter press to carry out solid-liquid separation reacted mixed solution, can be used as manufacture of cement addition material or brick-making raw material after waste residue is air-dry; 7. extract isolated liquid to equalizing tank; Add regulator and regulate liquid alumina content and basicity, as adopting unslaked lime, liquid: it is 1: 0.054～0.086 that unslaked lime adds volume ratio; If adopt the aluminium bits; Liquid: it is 1: 0.023～0.04 that the aluminium bits add volume ratio, if adopt the solid calcium aluminate, liquid: it is 1: 0.042～0.063 that the solid calcium aluminate adds volume ratio; 8. will place plastic containers to leave standstill through the solution after regulating, temperature be controlled at 50～60 ℃, and the curing time is 48～72 hours, promptly gets flocculation agent liquid aluminium polychloride finished product.
2. according to claims 1 described a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride, it is characterized in that during step 1. the aluminium ash being carried out mixing and stirring with water 1: 3 by volume～5, soaked 5～8 hours.
3. according to claims 1 described a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride; It is characterized in that 3. step is the ash of aluminium by volume: hydrochloric acid: water is 1: 2.5～3.0: 3.0～4.0 in reaction kettle, to add hydrochloric acid and water, and the formation mixed solution stirs.
4. according to the described a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride of claims 1, it is characterized in that temperature of reaction kettle is set to 85～100 ℃ during step is 4., reacted 2～3 hours.
5. according to claims 1 described a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride; It is characterized in that adopting the absorption tower to spray absorption the gas that produces in the reaction process during step 5.; Spray liquid adopts clear water, and absorption liquid is back to and continues reaction in the reaction kettle.
6. according to claims 1 described a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride; It is characterized in that adopting plate and frame(type)filter press to carry out solid-liquid separation reacted mixed solution during step 6., can be used as manufacture of cement addition material or brick-making raw material after waste residue is air-dry.
7. according to claims 1 described a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride; It is characterized in that step is 7. for extracting isolated liquid to equalizing tank; Add regulator and regulate liquid alumina content and basicity, as adopting unslaked lime, liquid: it is 1: 0.054～0.086 that unslaked lime adds volume ratio; If adopt the aluminium bits; Liquid: it is 1: 0.023～0.04 that the aluminium bits add volume ratio, if adopt the solid calcium aluminate, liquid: it is 1: 0.042～0.063 that the solid calcium aluminate adds volume ratio.
8. according to claims 1 described a kind of method of utilizing the aluminium ash to prepare the flocculation agent liquid aluminium polychloride; It is characterized in that to place plastic containers to leave standstill through the solution after regulating during step 8.; Temperature is controlled at 50～60 ℃; Curing time is 48～72 hours, promptly gets flocculation agent liquid aluminium polychloride finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101592939A CN102674422A (en) | 2012-05-22 | 2012-05-22 | Method for preparing flocculant liquid polyaluminum chloride from aluminum ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101592939A CN102674422A (en) | 2012-05-22 | 2012-05-22 | Method for preparing flocculant liquid polyaluminum chloride from aluminum ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102674422A true CN102674422A (en) | 2012-09-19 |
Family
ID=46807067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101592939A Pending CN102674422A (en) | 2012-05-22 | 2012-05-22 | Method for preparing flocculant liquid polyaluminum chloride from aluminum ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102674422A (en) |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976378A (en) * | 2012-12-25 | 2013-03-20 | 淄博市淄川宏盛化工厂 | Calcium aluminate powder production method |
| CN105152197A (en) * | 2015-09-08 | 2015-12-16 | 海南宜净环保有限公司 | Preparation method for poly aluminium chloride |
| CN106590689A (en) * | 2016-12-26 | 2017-04-26 | 荆门市格林美新材料有限公司 | Method for preparing composite flame retardant through recovering aluminum and magnesium from different types of sludge |
| CN106745618A (en) * | 2017-02-24 | 2017-05-31 | 南通大学 | Water purification agent method is prepared using aluminium ash |
| CN106892444A (en) * | 2015-12-21 | 2017-06-27 | 中国科学院过程工程研究所 | A kind of method of utilization waste hydrochloric acid and aluminium ash production polyaluminium chloride water purification agent |
| CN106892441A (en) * | 2017-02-24 | 2017-06-27 | 南通大学 | Aluminium ash Application way |
| CN107262501A (en) * | 2017-07-07 | 2017-10-20 | 南通大学 | Reaction unit and nitrogen removal system that aluminium lime-ash is denitrogenated |
| CN107398465A (en) * | 2017-07-27 | 2017-11-28 | 区耀垣 | A kind of processing method of aluminium ash |
| CN107470318A (en) * | 2017-07-07 | 2017-12-15 | 南通大学 | Aluminium ash cascade utilization device |
| CN107599234A (en) * | 2017-07-25 | 2018-01-19 | 安徽省腾越铝塑有限公司 | A kind of waste aluminium plastic separates recycling technique |
| CN109970102A (en) * | 2019-05-17 | 2019-07-05 | 中国科学院过程工程研究所 | A kind of method that aluminium ash prepares aluminium polychloride coproduction vanadic anhydride |
| CN110040830A (en) * | 2019-05-30 | 2019-07-23 | 南华大学 | A kind of processing method of industrial wastewater |
| CN110040755A (en) * | 2019-05-17 | 2019-07-23 | 中国科学院过程工程研究所 | A method of aluminium polychloride coproduction calcirm-fluoride is prepared using aluminium ash |
| CN110040756A (en) * | 2019-05-17 | 2019-07-23 | 中国科学院过程工程研究所 | A kind of method that aluminium ash prepares aluminium polychloride coproduction refractory material |
| CN110845964A (en) * | 2019-11-26 | 2020-02-28 | 江西鹏腾实业有限公司 | Device and method for producing floor tile adhesive by using polyaluminium chloride sludge |
| CN110902707A (en) * | 2019-12-31 | 2020-03-24 | 武宁县伊山口净水剂厂 | Production method of polyaluminium chloride |
| CN111978050A (en) * | 2020-09-07 | 2020-11-24 | 河南理工大学 | Polyaluminium chloride waste residue dry-mixed mortar and preparation method thereof |
| CN112266063A (en) * | 2020-10-29 | 2021-01-26 | 武汉科技大学 | Method for preparing polyaluminum chloride water purifying agent from secondary aluminum ash of secondary aluminum |
| CN112520772A (en) * | 2020-12-23 | 2021-03-19 | 四川科龙达环保股份有限公司 | Method for producing high-purity colorless transparent polyaluminum chloride by using aluminum ash |
| CN112570419A (en) * | 2020-11-20 | 2021-03-30 | 四川科龙达环保股份有限公司 | Aluminum ash recycling method, harmless aluminum ash and application of harmless aluminum ash |
| CN112827451A (en) * | 2021-01-04 | 2021-05-25 | 南通大学 | Aluminum ash hydrolysis nitrogen removal method based on aluminum ash hydrolysis nitrogen removal device |
| CN112978778A (en) * | 2019-12-13 | 2021-06-18 | 南京理工大学 | Method for preparing polyaluminum chloride by aluminum mortar method |
| CN113443644A (en) * | 2021-07-22 | 2021-09-28 | 刘建国 | Polyaluminum chloride flocculant and preparation method thereof |
| CN114195177A (en) * | 2021-12-28 | 2022-03-18 | 中国科学院过程工程研究所 | Method for preparing polyaluminium chloride and coproducing magnesium aluminate spinel by using aluminum ash |
| CN114212810A (en) * | 2021-12-09 | 2022-03-22 | 苏州业华环境科技有限公司 | Preparation method of defluorinating agent and defluorination process |
| CN114229978A (en) * | 2022-01-05 | 2022-03-25 | 常熟理工学院 | Method for preparing phosphorus-magnesium-doped polyaluminum chloride flocculating agent by using secondary aluminum ash |
| CN114906867A (en) * | 2021-02-08 | 2022-08-16 | 中国科学院过程工程研究所 | Method for preparing aluminum oxide by using aluminum ash |
| CN115159553A (en) * | 2022-07-20 | 2022-10-11 | 山东绿然环保科技有限公司 | Production process for preparing polyaluminum chloride by using secondary aluminum ash |
| CN115180643A (en) * | 2022-07-20 | 2022-10-14 | 山东绿然环保科技有限公司 | Production process for preparing aluminum chloride by using aluminum ash |
| CN115974119A (en) * | 2022-12-01 | 2023-04-18 | 百色实华环保科技有限公司 | Method for preparing polyaluminum chloride from medium-high aluminum slag in electrolytic aluminum overhaul slag |
| CN116921384A (en) * | 2023-09-18 | 2023-10-24 | 常熟理工学院 | Method for preparing polymeric flocculant and high-chlorine salt-tolerant cement by using secondary aluminum ash |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036708A (en) * | 1989-03-28 | 1989-11-01 | 陈光彦 | A kind of production method of coagulant for clarifying water |
| CN102295305A (en) * | 2011-08-15 | 2011-12-28 | 岳阳安泰实业有限公司 | Production method of polyaluminium chloride |
-
2012
- 2012-05-22 CN CN2012101592939A patent/CN102674422A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036708A (en) * | 1989-03-28 | 1989-11-01 | 陈光彦 | A kind of production method of coagulant for clarifying water |
| CN102295305A (en) * | 2011-08-15 | 2011-12-28 | 岳阳安泰实业有限公司 | Production method of polyaluminium chloride |
Non-Patent Citations (5)
| Title |
|---|
| 尹春艳: "PAC的制备及在磁场协同下的脱色实验研究", 《广东化工》 * |
| 石健等: "利用铝灰制备聚合氯化铝工艺参数的优化", 《南通大学学报（自然科学版）》 * |
| 谢英惠等: "聚合氯化铝的合成", 《山西化工》 * |
| 陈思忠等: "用铝灰生产聚合氯化铝的工艺研究", 《再生利用》 * |
| 鲁秀国等: "铝灰一步酸溶法制备聚合氯化铝的试验研究", 《供水技术》 * |
Cited By (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976378B (en) * | 2012-12-25 | 2014-10-22 | 淄博市淄川宏盛化工厂 | Calcium aluminate powder production method |
| CN102976378A (en) * | 2012-12-25 | 2013-03-20 | 淄博市淄川宏盛化工厂 | Calcium aluminate powder production method |
| CN105152197A (en) * | 2015-09-08 | 2015-12-16 | 海南宜净环保有限公司 | Preparation method for poly aluminium chloride |
| CN106892444A (en) * | 2015-12-21 | 2017-06-27 | 中国科学院过程工程研究所 | A kind of method of utilization waste hydrochloric acid and aluminium ash production polyaluminium chloride water purification agent |
| CN106590689A (en) * | 2016-12-26 | 2017-04-26 | 荆门市格林美新材料有限公司 | Method for preparing composite flame retardant through recovering aluminum and magnesium from different types of sludge |
| CN106590689B (en) * | 2016-12-26 | 2018-06-19 | 荆门市格林美新材料有限公司 | The method that magnalium prepares composite flame-retardant agent is recycled from different sludge |
| CN106745618B (en) * | 2017-02-24 | 2019-10-11 | 南通大学 | Water purification agent method is prepared using aluminium ash |
| CN106745618A (en) * | 2017-02-24 | 2017-05-31 | 南通大学 | Water purification agent method is prepared using aluminium ash |
| CN106892441A (en) * | 2017-02-24 | 2017-06-27 | 南通大学 | Aluminium ash Application way |
| CN107262501A (en) * | 2017-07-07 | 2017-10-20 | 南通大学 | Reaction unit and nitrogen removal system that aluminium lime-ash is denitrogenated |
| CN107470318A (en) * | 2017-07-07 | 2017-12-15 | 南通大学 | Aluminium ash cascade utilization device |
| CN107599234A (en) * | 2017-07-25 | 2018-01-19 | 安徽省腾越铝塑有限公司 | A kind of waste aluminium plastic separates recycling technique |
| CN107398465A (en) * | 2017-07-27 | 2017-11-28 | 区耀垣 | A kind of processing method of aluminium ash |
| CN110040755A (en) * | 2019-05-17 | 2019-07-23 | 中国科学院过程工程研究所 | A method of aluminium polychloride coproduction calcirm-fluoride is prepared using aluminium ash |
| CN110040756A (en) * | 2019-05-17 | 2019-07-23 | 中国科学院过程工程研究所 | A kind of method that aluminium ash prepares aluminium polychloride coproduction refractory material |
| CN109970102A (en) * | 2019-05-17 | 2019-07-05 | 中国科学院过程工程研究所 | A kind of method that aluminium ash prepares aluminium polychloride coproduction vanadic anhydride |
| CN110040830A (en) * | 2019-05-30 | 2019-07-23 | 南华大学 | A kind of processing method of industrial wastewater |
| CN110845964A (en) * | 2019-11-26 | 2020-02-28 | 江西鹏腾实业有限公司 | Device and method for producing floor tile adhesive by using polyaluminium chloride sludge |
| CN112978778A (en) * | 2019-12-13 | 2021-06-18 | 南京理工大学 | Method for preparing polyaluminum chloride by aluminum mortar method |
| CN110902707A (en) * | 2019-12-31 | 2020-03-24 | 武宁县伊山口净水剂厂 | Production method of polyaluminium chloride |
| CN111978050A (en) * | 2020-09-07 | 2020-11-24 | 河南理工大学 | Polyaluminium chloride waste residue dry-mixed mortar and preparation method thereof |
| CN112266063A (en) * | 2020-10-29 | 2021-01-26 | 武汉科技大学 | Method for preparing polyaluminum chloride water purifying agent from secondary aluminum ash of secondary aluminum |
| CN112570419A (en) * | 2020-11-20 | 2021-03-30 | 四川科龙达环保股份有限公司 | Aluminum ash recycling method, harmless aluminum ash and application of harmless aluminum ash |
| CN112520772A (en) * | 2020-12-23 | 2021-03-19 | 四川科龙达环保股份有限公司 | Method for producing high-purity colorless transparent polyaluminum chloride by using aluminum ash |
| CN112827451A (en) * | 2021-01-04 | 2021-05-25 | 南通大学 | Aluminum ash hydrolysis nitrogen removal method based on aluminum ash hydrolysis nitrogen removal device |
| CN114906867A (en) * | 2021-02-08 | 2022-08-16 | 中国科学院过程工程研究所 | Method for preparing aluminum oxide by using aluminum ash |
| CN113443644A (en) * | 2021-07-22 | 2021-09-28 | 刘建国 | Polyaluminum chloride flocculant and preparation method thereof |
| CN114212810A (en) * | 2021-12-09 | 2022-03-22 | 苏州业华环境科技有限公司 | Preparation method of defluorinating agent and defluorination process |
| CN114195177A (en) * | 2021-12-28 | 2022-03-18 | 中国科学院过程工程研究所 | Method for preparing polyaluminium chloride and coproducing magnesium aluminate spinel by using aluminum ash |
| CN114229978A (en) * | 2022-01-05 | 2022-03-25 | 常熟理工学院 | Method for preparing phosphorus-magnesium-doped polyaluminum chloride flocculating agent by using secondary aluminum ash |
| CN114229978B (en) * | 2022-01-05 | 2023-08-22 | 常熟理工学院 | Method for preparing phosphorus-magnesium doped polyaluminum chloride flocculant by using secondary aluminum ash |
| CN115159553A (en) * | 2022-07-20 | 2022-10-11 | 山东绿然环保科技有限公司 | Production process for preparing polyaluminum chloride by using secondary aluminum ash |
| CN115180643A (en) * | 2022-07-20 | 2022-10-14 | 山东绿然环保科技有限公司 | Production process for preparing aluminum chloride by using aluminum ash |
| CN115974119A (en) * | 2022-12-01 | 2023-04-18 | 百色实华环保科技有限公司 | Method for preparing polyaluminum chloride from medium-high aluminum slag in electrolytic aluminum overhaul slag |
| CN116921384A (en) * | 2023-09-18 | 2023-10-24 | 常熟理工学院 | Method for preparing polymeric flocculant and high-chlorine salt-tolerant cement by using secondary aluminum ash |
| CN116921384B (en) * | 2023-09-18 | 2023-12-19 | 常熟理工学院 | Method for preparing polymeric flocculant and high-chlorine salt-tolerant cement by using secondary aluminum ash |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102674422A (en) | Method for preparing flocculant liquid polyaluminum chloride from aluminum ash | |
| Wang et al. | Recovery of alkali and alumina from bauxite residue (red mud) and complete reuse of the treated residue | |
| CN101624267B (en) | Low-temperature ceramic curing agent of red mud from Bayer process | |
| CN104445311B (en) | Clean poly-generation preparation method for flyash with high-content silicon dioxide | |
| CN1990413A (en) | Synthesis-reactivation technique for preparing inorganic coagulation material | |
| CN103011642B (en) | Method for preparing high-strength alpha-type hemihydrate gypsum by utilizing calcium carbide sludge modified phosphogypsum with normal pressure hydrothermal method | |
| CN101891224A (en) | Method for producing alumina and white carbon black by utilizing red mud and flyash | |
| CN105502424B (en) | The method that a kind of utilization industrial waste sulfuric acid and red mud produce polysilicate sulfuric acid aluminium calcium ferric flocculant | |
| CN102515280B (en) | Method for separation of aluminum and iron from acid leaching solution of coal gangue with high iron content | |
| CN103752261B (en) | With white clay and kerosene shale ash for the method for uranium adsorbent and curing agent prepared by raw material | |
| CN106830722B (en) | Organic wastewater cooperates with the system and method for Industrial Solid Waste preparation ultrahigh water filler | |
| CN103508689A (en) | Method for preparing alpha semi-hydrated gypsum at low cost and prepared alpha semi-hydrated gypsum and gypsum block | |
| CN102424550A (en) | Laterite slag baking-free brick and preparation method thereof | |
| CN104446067B (en) | Dry-process rotary kiln mud, waste gypsum produce the method for belite-gypsum material | |
| Wu et al. | Red gypsum utilization and acidic wastewater treatment based on metal self-enrichment process | |
| CN107381610A (en) | A kind of method that aluminium polychloride is prepared using red mud | |
| CN103011641B (en) | Method for preparing high-activity alpha type hemihydrate gypsum cementing materials by using reaction of chlorine-alkali waste liquid treating ardealite | |
| CN113968716A (en) | Harmless treatment method for electrolytic manganese slag | |
| CN102515234A (en) | Method for producing low-iron aluminum sulfate and polymeric aluminum ferric sulfate by using coal gangue | |
| KR20120124933A (en) | Alkali activated gypsum-slag cement composition and concrete constructing method using the same | |
| CN102417312B (en) | Resource utilization method for chrome-containing aluminum sludge | |
| CN113213498B (en) | Cement-based material carbonization recycling method and calcium carbonate whisker material | |
| CN103896554A (en) | Autoclaved brisk taking dolomite tailings and iron tailings as main raw materials and preparation method thereof | |
| CN104402271B (en) | A kind of mud is used for the ridge grain seeding method of dry-process rotary kiln | |
| KR20220022485A (en) | Process for the preparation of hydraulic binders from water treatment residues |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |