CN102557097A - Method for removing iron ions from drinking-water-level polyaluminum chloride - Google Patents
Method for removing iron ions from drinking-water-level polyaluminum chloride Download PDFInfo
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- CN102557097A CN102557097A CN2011103207819A CN201110320781A CN102557097A CN 102557097 A CN102557097 A CN 102557097A CN 2011103207819 A CN2011103207819 A CN 2011103207819A CN 201110320781 A CN201110320781 A CN 201110320781A CN 102557097 A CN102557097 A CN 102557097A
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Abstract
The invention discloses a method for removing iron ions from drinking-water-level polyaluminum chloride. According to the method, the following ingredients in mass percentage: 20%-55% of polyhydroxy acid, 15%-45% of organic ketone and 15%-65% of heterocyclic oxides, are adopted to produce a compound agent by compounding; the compound agent is added into the polyaluminum chloride according to a mass percentage ratio of the compound agent to the polyaluminum chloride of 1-10 ppm, and the iron ions can be removed from the polyaluminum chloride to a degree that the iron ions cannot be detected, so that the aim of purification and decolorization is achieved; additionally-added chemical agents, such as activated carbon and the like, are not needed to be adopted, and the iron ions can be effectively removed from the polyaluminum chloride by adding the compound agent during the process of preparing the polyaluminum chloride or directly adding the compound agent into the polyaluminum chloride, so that the method for removing the iron ions from the drinking-water-level polyaluminum chloride has the characteristics of simplified decolorization process, short reaction cycle, high utilization ratio of raw materials, no pollution, and the like.
Description
Technical field
The present invention relates to the removal method of iron ion in a kind of Poly aluminum Chloride (PAC), be specifically related to the removal of iron in the tap water level Poly aluminum Chloride (PAC), belong to environmental protection technical field.
Background technology
Poly aluminum Chloride (PAC) is a kind of efficient water-purifying agent, and outward appearance is yellow particle or light yellow powdery solid, and nontoxic, tasteless, non-corrosiveness have effects such as degerming, deodorizing, decolouring.Because the characteristic advantage is outstanding, and is applied widely, the comparable traditional water purification agent of consumption reduces more than 30%, and cost savings have become the good water purification agent of generally acknowledging at present both at home and abroad more than 40%.
Poly aluminum Chloride (PAC) can be used for the processing of special water qualities such as purifying drinking water and tap water feedwater, but in preparation Poly aluminum Chloride (PAC) product process, owing to the pollution of raw material reason or pipeline, container; The iron ion that often has certain content; Can cause product colour dark excessively, in the purifying drinking water treating processes, also can cause tap water to be yellow or slightly be yellow; Water quality is produced very big influence, can not satisfy people's demand of drinking water.The drinking water standard regulation of China, the colourity of tap water should not surpass 15 degree, and therefore, the shade and quality to Poly aluminum Chloride (PAC) in tap water requires all than higher, and is particularly tighter to the content requirement of iron ion.The present invention is just for adapting to this needs; The removal method of iron ion in a kind of tap water level Poly aluminum Chloride (PAC) is provided; This method is simple to operate, the reaction times is short, raw material is easy to get, cheap, and can prepare in the process or directly in Poly aluminum Chloride (PAC), add at Poly aluminum Chloride (PAC) and can both effectively remove the iron ion in the Poly aluminum Chloride (PAC).
Summary of the invention
The removal method of iron ion in a kind of tap water level Poly aluminum Chloride (PAC) that the present invention proposes, purpose is to improve and contains a large amount of metallic iron ions in the existing Poly aluminum Chloride (PAC) product, to obtain high purity iron-free ionic Poly aluminum Chloride (PAC).
The composite technical scheme of compound that the present invention adopts is:
The removal method of iron ion in a kind of tap water level Poly aluminum Chloride (PAC); This method adopts polyhydroxy-acid, organic ketone and heterocycle oxide compound to be re-dubbed compound, and wherein the polyhydroxy-acid mass content is 20%～55%, organic ketone mass content is 15%～45%, heterocycle oxide mass content is 15%～65%.
Described polyhydroxy-acid is one or both in oxysuccinic acid, Whitfield's ointment, glucono-, mandelic acid, Hydrocerol A, neat acid, the oxaloacetic acid.
Described organic ketone is one or both in pimelinketone, ketopentamethylene, dichloroacetophenone, watermelon ketone, methyl ethyl diketone, valerone, methylacetone, the N-Methyl pyrrolidone.
Described heterocycle oxide compound is one or both in bromotrifluoromethane pyridine, isothiazole, Pyrrolidine, 4-fluorine pyridine, THF, N-hydroxyethyl piperazine, dichloroacetyl chloride, the hexamethyldisilazane.
The per-cent that each material accounts for composite back total mass is respectively: oxysuccinic acid 20%～55%; Whitfield's ointment 20%～55%; Glucono-20%～55%; Mandelic acid 20%～55%; Hydrocerol A 20%～55%; Neat acid 20%～55%; Oxaloacetic acid 20%～55%; Pimelinketone 15%～45%; Ketopentamethylene 15%～45%; Dichloroacetophenone 15%～45%; Watermelon ketone 15%～45%; Methyl ethyl diketone 15%～45%; Valerone 15%～45%; Methylacetone 15%～45%; N-Methyl pyrrolidone 15%～45%; Bromotrifluoromethane pyridine 15%～65%; Isothiazole 15%～65%; Pyrrolidine 15%～65%; 4-fluorine pyridine 15%～65%; THF 15%～65%; N-hydroxyethyl piperazine 15%～65%; Dichloroacetyl chloride 15%～65%; Hexamethyldisilazane 15%～65%.
The realization of the object of the invention is through in the polymeric aluminum chlorides solution that is 1～10ppm ratio adding maturation stage in mass ratio with composite good compound or in the Poly aluminum Chloride (PAC) product; Constantly stir to be not less than the 200r/min rotating speed, churning time is 15～35min, through filtering; Solution is colourless transparent liquid, and iron ion content can not detect.
The invention has the beneficial effects as follows:
1. the present invention directly utilizes compound to remove the iron ion in the Poly aluminum Chloride (PAC), reaches the purpose of purifying decolouring, need not adopt the chemical agents such as gac that add, and helps to improve the treatment effect of purifying drinking water;
2. can prepare in the process or directly in Poly aluminum Chloride (PAC), add at Poly aluminum Chloride (PAC) and can both effectively remove the iron ion in the Poly aluminum Chloride (PAC), the adaptive temperature scope be wide, the warming temperature of need not lowering the temperature, favourable saving energy;
3. compound preparation technology of the present invention is simple, and decoloration process is simplified, and reaction time is short, and raw material availability is high, and is pollution-free.
Embodiment
The removal method of iron ion in a kind of tap water level of the present invention Poly aluminum Chloride (PAC); This method adopts polyhydroxy-acid, organic ketone and heterocycle oxide compound to be re-dubbed compound, and wherein the polyhydroxy-acid mass content is 20%～55%, organic ketone mass content is 15%～45%, heterocycle oxide mass content is 15%～65%.
Described polyhydroxy-acid is one or both in oxysuccinic acid, Whitfield's ointment, glucono-, mandelic acid, Hydrocerol A, neat acid, the oxaloacetic acid.
Described organic ketone is one or both in pimelinketone, ketopentamethylene, dichloroacetophenone, watermelon ketone, methyl ethyl diketone, valerone, methylacetone, the N-Methyl pyrrolidone.
Described heterocycle oxide compound is one or both in bromotrifluoromethane pyridine, isothiazole, Pyrrolidine, 4-fluorine pyridine, THF, N-hydroxyethyl piperazine, dichloroacetyl chloride, the hexamethyldisilazane.
Each percentage composition of above-mentioned compound is that the per-cent that each material accounts for the compound total mass is specially: oxysuccinic acid 20%～55%; Whitfield's ointment 20%～55%; Glucono-20%～55%; Mandelic acid 20%～55%; Hydrocerol A 20%～55%; Neat acid 20%～55%; Oxaloacetic acid 20%～55%; Pimelinketone 15%～45%; Ketopentamethylene 15%～45%; Dichloroacetophenone 15%～45%; Watermelon ketone 15%～45%; Methyl ethyl diketone 15%～45%; Valerone 15%～45%; Methylacetone 15%～45%; N-Methyl pyrrolidone 15%～45%; Bromotrifluoromethane pyridine 15%～65%; Isothiazole 15%～65%; Pyrrolidine 15%～65%; 4-fluorine pyridine 15%～65%; THF 15%～65%; N-hydroxyethyl piperazine 15%～65%; Dichloroacetyl chloride 15%～65%; Hexamethyldisilazane 15%～65%.
The realization of the object of the invention is through in the polymeric aluminum chlorides solution that is 1～10ppm ratio adding maturation stage in mass ratio with composite good compound or in the Poly aluminum Chloride (PAC) product; Constantly stir to be not less than the 200r/min rotating speed, churning time is 15～35min, through filtering; Solution is colourless transparent liquid, and iron ion content can not detect.
Instance 1
Will be by accounting for compound total mass per-cent, oxysuccinic acid 20%, Whitfield's ointment 45% pimelinketone 20%, bromotrifluoromethane pyridine 15% are made into compound, and composite good compound is added in the Poly aluminum Chloride (PAC) of maturation stage; Dosage is 10ppm; Constantly stir to be not less than the 200r/min rotating speed, behind the stirring 30min, through filtering; Solution is colourless transparent liquid, and iron ion content can not detect.
Instance 2
Will be by accounting for compound total mass per-cent, glucono-30%, dichloroacetophenone 30%, watermelon ketone 20%, THF 20% are made into compound, and composite good compound is added in the Poly aluminum Chloride (PAC) of maturation stage; Dosage is 8ppm; Constantly stir to be not less than the 200r/min rotating speed, behind the stirring 30min, through filtering; Solution is colourless transparent liquid, and iron ion content can not detect.
Instance 3
Will be by accounting for compound total mass per-cent, mandelic acid 30%, methyl ethyl diketone 20%, isothiazole 25%, Pyrrolidine 25% are made into compound, and composite good compound is added in the Poly aluminum Chloride (PAC) of maturation stage; Dosage is 6ppm; Constantly stir to be not less than the 200r/min rotating speed, behind the stirring 25min, through filtering; Solution is colourless transparent liquid, and iron ion content can not detect.
Instance 4
Will be by accounting for compound total mass per-cent, Hydrocerol A 20%, valerone 35%, methylacetone 25%, chloroacetyl chloride 20% are made into compound, and composite good compound is added in the Poly aluminum Chloride (PAC) of maturation stage; Dosage is 5ppm; Constantly stir to be not less than the 200r/min rotating speed, behind the stirring 25min, through filtering; Solution is colourless transparent liquid, and iron ion content can not detect.
Instance 5
Will be by accounting for compound total mass per-cent, oxysuccinic acid 20%, oxaloacetic acid 20%, watermelon ketone 15%, methyl ethyl diketone 15%, N-hydroxyethyl piperazine 30% are made into compound, and composite good compound is added in the Poly aluminum Chloride (PAC) of maturation stage; Dosage is 3ppm; Constantly stir to be not less than the 200r/min rotating speed, behind the stirring 20min, through filtering; Solution is colourless transparent liquid, and iron ion content can not detect.
Instance 6
Will be by accounting for compound total mass per-cent, mandelic acid 30%, hexamethyldisilazane 35%, 4-fluorine pyridine 15%, N-Methyl pyrrolidone 20% are made into compound, and composite good compound is added in the Poly aluminum Chloride (PAC) of maturation stage; Dosage is 2ppm; Constantly stir to be not less than the 200r/min rotating speed, behind the stirring 15min, through filtering; Solution is colourless transparent liquid, and iron ion content can not detect.
Claims (8)
1. the removal method of iron ion in the tap water level Poly aluminum Chloride (PAC), it is characterized in that: this method adopts polyhydroxy-acid, organic ketone and heterocycle oxide compound to be re-dubbed compound.
2. the removal method of iron ion in a kind of tap water level Poly aluminum Chloride (PAC) according to claim 1 is characterized in that: described polyhydroxy-acid is one or both in oxysuccinic acid, Whitfield's ointment, glucono-, mandelic acid, Hydrocerol A, neat acid, the oxaloacetic acid; Described organic ketone is one or both in pimelinketone, ketopentamethylene, dichloroacetophenone, watermelon ketone, methyl ethyl diketone, valerone, methylacetone, the N-Methyl pyrrolidone; Described heterocycle oxide compound is one or both in bromotrifluoromethane pyridine, isothiazole, Pyrrolidine, 4-fluorine pyridine, THF, N-hydroxyethyl piperazine, dichloroacetyl chloride, the hexamethyldisilazane.
3. the removal method of iron ion in a kind of tap water level Poly aluminum Chloride (PAC) according to claim 1; It is characterized in that: by accounting for compound total mass per-cent, oxysuccinic acid 20%, Whitfield's ointment 45% pimelinketone 20%, bromotrifluoromethane pyridine 15% are made into this compound.
4. the removal method of iron ion in a kind of tap water level Poly aluminum Chloride (PAC) according to claim 1; It is characterized in that: by accounting for compound total mass per-cent, mandelic acid 30%, methyl ethyl diketone 20%, isothiazole 25%, Pyrrolidine 25% are made into this compound.
5. the removal method of iron ion in a kind of tap water level Poly aluminum Chloride (PAC) according to claim 1; It is characterized in that: by accounting for compound total mass per-cent, glucono-30%, dichloroacetophenone 30%, watermelon ketone 20%, THF 20% are made into this compound.
6. the removal method of iron ion in a kind of tap water level Poly aluminum Chloride (PAC) according to claim 1; It is characterized in that: by accounting for compound total mass per-cent, Hydrocerol A 20%, valerone 35%, methylacetone 25%, chloroacetyl chloride 20% are made into this compound.
7. the removal method of iron ion in a kind of tap water level Poly aluminum Chloride (PAC) according to claim 1; It is characterized in that: by accounting for compound total mass per-cent, oxysuccinic acid 20%, oxaloacetic acid 20%, watermelon ketone 15%, methyl ethyl diketone 15%, N-hydroxyethyl piperazine 30% are made into this compound.
8. the removal method of iron ion in a kind of tap water level Poly aluminum Chloride (PAC) according to claim 1; It is characterized in that: by accounting for compound total mass per-cent, mandelic acid 30%, hexamethyldisilazane 35%, 4-fluorine pyridine 15%, N-Methyl pyrrolidone 20% are made into this compound.
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| CN201110320781.9A CN102557097B (en) | 2011-10-20 | 2011-10-20 | Method for removing iron ions from drinking-water-level polyaluminum chloride |
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| CN201110320781.9A CN102557097B (en) | 2011-10-20 | 2011-10-20 | Method for removing iron ions from drinking-water-level polyaluminum chloride |
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| CN102557097A true CN102557097A (en) | 2012-07-11 |
| CN102557097B CN102557097B (en) | 2014-04-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011223A (en) * | 2012-11-13 | 2013-04-03 | 常州大学 | Method for removing drinking water-level iron ions |
| CN104045188A (en) * | 2014-06-26 | 2014-09-17 | 常州大学 | Method for removing iron ions in drinking-water-level polyaluminum chloride |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1857999A (en) * | 2005-05-02 | 2006-11-08 | 黄中杰 | Recovering and utilizing method for aluminum trichloride solution in chemical production |
| CN101155759A (en) * | 2005-04-04 | 2008-04-02 | 日本轻金属株式会社 | High-purity anhydrous aluminum chloride and process for production thereof |
| US20080131354A1 (en) * | 2006-12-05 | 2008-06-05 | Reheis, Inc. | Polyaluminum calcium hydroxychlorides and methods of making the same |
-
2011
- 2011-10-20 CN CN201110320781.9A patent/CN102557097B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101155759A (en) * | 2005-04-04 | 2008-04-02 | 日本轻金属株式会社 | High-purity anhydrous aluminum chloride and process for production thereof |
| CN1857999A (en) * | 2005-05-02 | 2006-11-08 | 黄中杰 | Recovering and utilizing method for aluminum trichloride solution in chemical production |
| US20080131354A1 (en) * | 2006-12-05 | 2008-06-05 | Reheis, Inc. | Polyaluminum calcium hydroxychlorides and methods of making the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011223A (en) * | 2012-11-13 | 2013-04-03 | 常州大学 | Method for removing drinking water-level iron ions |
| CN104045188A (en) * | 2014-06-26 | 2014-09-17 | 常州大学 | Method for removing iron ions in drinking-water-level polyaluminum chloride |
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| CN102557097B (en) | 2014-04-16 |
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Effective date of registration: 20151119 Address after: 226500 Jiangsu city of Nantong province Rugao City Shi Zhuang Zhen Si Jiang Cun (formerly North nursery) Patentee after: Nantong Shouxing Foodstuff Co., Ltd. Address before: Wujin District of Jiangsu city in Changzhou province 213164 Chang Wu Road No. 801, building C, 414-416 network technology Patentee before: Changzhou Yahuan Environmental Protection Technology Co., Ltd. |
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Granted publication date: 20140416 Termination date: 20191020 |
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