CN102815772A - Preparation method of composite polyferric chloride coagulant - Google Patents
Preparation method of composite polyferric chloride coagulant Download PDFInfo
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- CN102815772A CN102815772A CN2011104043040A CN201110404304A CN102815772A CN 102815772 A CN102815772 A CN 102815772A CN 2011104043040 A CN2011104043040 A CN 2011104043040A CN 201110404304 A CN201110404304 A CN 201110404304A CN 102815772 A CN102815772 A CN 102815772A
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- iron chloride
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Abstract
The invention relates to production technology of composite polyferric chloride. Chlorohydric acid washing waste liquid of a steel pipe factory or a pipe pull factory is injected into a burdening pool, partial ferrous chloride is added and evenly stirred under the condition that the rotating speed is 60-80 r/min, then dosed tartaric acid-sodium tartrate stabilizer is added in a reaction kettle in metering mode, and sodium chlorate is utilized as the oxidant till reaction is finished. Obtained products are good in coagulation effect. The stable period of products prepared in a common method is three months, and the stable period of the products prepared in the method can reach 6-9 months.
Description
Technical field
The present invention relates to the working method that a kind of novel coagulating agent meets poly-iron chloride, belong to the inorganic polymer chemical field.
Background technology
The inorganic coagulant that generally uses at present mainly is divided into two big types: aluminium salt and molysite.Be main with poly aluminium chloride, Tai-Ace S 150, aluminum chloride in the aluminium salt.Molysite is main with bodied ferric sulfate then.From the sixties in last century, the original together advantage of poly aluminium chloride has occupied one seat in market, but the progress of science and technology also makes it expose certain deficiency.Polyiron sulfate is initiated by Japan early than nineteen seventies, and China is in the exploitation 1980s and drop into suitability for industrialized production and use.Because its basicity is low, acid strong, dilution stability is poor, and coagulation performance is lower than poly aluminium chloride, it applied receive bigger limitation.
The research and development of poly-iron chloride come from the nearest more than ten years, because it is produced and shortcomings such as stability in use is poor, corrodibility is strong, make its suitability for industrialized production and application be difficult to enforcement.And greatly the researchist adopts and adds a certain amount of phosphoric acid salt in process of production and improve its stability in documents and materials of having announced and patent.Though method is effective, at the water quality phosphorus content lower or dosage big in situation with regard to causing the water outlet total phosphorus to exceed standard easily.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, a kind of preparation method of compound poly-iron chloride flocculation agent is provided, production technique is simple, easy handling, and steady time is long, to the human non-toxic spinoff, also can not influence physical and chemical index in the water treatment.
Embodiment
Most preferred embodiment of the present invention:
Embodiment 1: in the 500ml beaker, add hydrochloric acid 50ml; Water 180ml adds iron protochloride (ferrous massfraction is in 26%) 150g then, is metered into stablizer according to 20% of the amount of full iron substance then; Agitation condition adds a certain amount of oxygenant down, when detecting Fe
2+≤0.1% o'clock, gained liquid was finished product, is numbered PFC-1.
Embodiment 2: in the 500ml beaker, add hydrochloric acid pickling waste liquor (Fe
2+=9%, HCl=3.4%) 200ml, industrial synthesis hydrochloric acid 15ml adds the iron protochloride of 120g then, is metered into stablizer according to 15% of the amount of full iron substance then, and agitation condition adds a certain amount of oxygenant down, when detecting Fe
2+≤0.1% o'clock, gained liquid was finished product.
With capital Hang Yun river is process object, verifies the performance of prepared medicament and conventional dose, and the result is as shown in table 1, raw water turbidity: 38.5NTU, pH value 8.36,15 ℃ of water temperatures.
The purifying water effect of table 1 PFC-1 of the present invention and iron(ic)chloride relatively
Visible by above result: the effect of compound poly-iron chloride flocculation agent obviously is superior to some molysite of use at present.
Claims (4)
1. the working method of a compound poly-iron chloride is characterized in that, adopting the spent pickle liquor of pipe mill or trombone slide factory is raw material, adds tartrate-EWNN solution in process of production as stablizer.
2. according to the preparation method of right 1 described compound poly-iron chloride, it is characterized in that the stablizer of introducing is that tartrate-sodium tartrate mass ratio is 1: 2 a solution.Or massfraction is 30% tartaric acid solution.
3. the preparation method of compound poly-iron chloride according to claim 1 is characterized in that, tartrate-EWNN solution be full iron substance in its product amount 15～20%.
4. the preparation method of compound poly-iron chloride according to claim 1, all iron content of products obtained therefrom is 10～15%, basicity is 6～15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104043040A CN102815772A (en) | 2011-12-05 | 2011-12-05 | Preparation method of composite polyferric chloride coagulant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104043040A CN102815772A (en) | 2011-12-05 | 2011-12-05 | Preparation method of composite polyferric chloride coagulant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102815772A true CN102815772A (en) | 2012-12-12 |
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ID=47300283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104043040A Pending CN102815772A (en) | 2011-12-05 | 2011-12-05 | Preparation method of composite polyferric chloride coagulant |
Country Status (1)
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| CN (1) | CN102815772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600893A (en) * | 2015-11-18 | 2016-05-25 | 常州市清流水处理剂有限公司 | Polyferric chloride production method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1778701A (en) * | 2005-10-14 | 2006-05-31 | 哈尔滨工业大学 | Oxidation polysilacidiron coagulant and preparation thereof |
| CN101003390A (en) * | 2006-01-20 | 2007-07-25 | 天津科技大学 | Method for preparing flocculant of ferric chloride of polysilicon acid |
-
2011
- 2011-12-05 CN CN2011104043040A patent/CN102815772A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1778701A (en) * | 2005-10-14 | 2006-05-31 | 哈尔滨工业大学 | Oxidation polysilacidiron coagulant and preparation thereof |
| CN101003390A (en) * | 2006-01-20 | 2007-07-25 | 天津科技大学 | Method for preparing flocculant of ferric chloride of polysilicon acid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600893A (en) * | 2015-11-18 | 2016-05-25 | 常州市清流水处理剂有限公司 | Polyferric chloride production method and device |
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| Date | Code | Title | Description |
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| 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: 20121212 |