CN109368753A - A kind of preparation method of compound frerrous chloride flocculant - Google Patents
A kind of preparation method of compound frerrous chloride flocculant Download PDFInfo
- Publication number
- CN109368753A CN109368753A CN201811395228.XA CN201811395228A CN109368753A CN 109368753 A CN109368753 A CN 109368753A CN 201811395228 A CN201811395228 A CN 201811395228A CN 109368753 A CN109368753 A CN 109368753A
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- CN
- China
- Prior art keywords
- frerrous chloride
- compound
- acid pickle
- preparation
- flocculant
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/10—Halides
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A kind of preparation method of compound frerrous chloride flocculant, using the acid pickle generated after chlorohydric acid pickling carbon steel through precipitating, filtering, by heating, negative pressure vacuumizes, oxidant is added after being concentrated, the part ferrous ion after filtering in acid pickle is set to be converted into ferric ion after stirring or pump circulation, it obtains based on ferrous chloride, compound frerrous chloride flocculant supplemented by ferric trichloride, using the acid pickle generated after chlorohydric acid pickling carbon steel as raw material, it has saved cost and acid pickle is made to be fully used, regeneration is played to waste resource, and reduce the pollution discharged to environment, and by based on ferrous chloride, the flocculating effect of the compound frerrous chloride flocculant obtained supplemented by ferric trichloride is better than single ferrous chloride or ferric trichloride flocculant.
Description
Technical field
The present invention relates to flocculant preparation technical field, in particular to a kind of preparation side of compound frerrous chloride flocculant
Method.
Background technique
In commercial process, a large amount of waste liquids, solid waste discharge daily in enterprise.These wastes are direct
Discharge, not only polluted environment, but also waste vast resources.For this purpose, how selective comprehensive to being carried out in these wastes
Conjunction recycles, and realizes that " turning waste into wealth " is just being increasingly subject to the concern of entire society.
Existing flocculant mostly uses frerrous chloride or ferric trichloride, but solid chlorine ferrous iron is at high cost, and it is prepared
Steam is also passed through when flocculant to be dissolved, technique is very complicated, and the ferric trichloride of high concentration belongs to harmful influence, and at
This height, using being inconvenient.
Summary of the invention
In order to make up for the deficiencies of the prior art, the purpose of the present invention is to provide a kind of systems of compound frerrous chloride flocculant
Preparation Method.
The technical solution that the present invention uses is: a kind of preparation method of compound frerrous chloride flocculant, the system
Preparation Method the following steps are included:
(1) using the acid pickle generated after chlorohydric acid pickling carbon steel, acid pickle after being filtered after precipitating and filters pressing；
(2) by heating in reaction kettle, negative pressure vacuumizes acid pickle after filtering, and after being concentrated, oxidant is added, by stirring
Mix or pump circulation after so that the part ferrous ion after filter in acid pickle is converted into ferric ion, obtain be with ferrous chloride
Main, supplemented by ferric trichloride compound frerrous chloride flocculant.
The main component in acid pickle generated after the chlorohydric acid pickling carbon steel is frerrous chloride.
The content of frerrous chloride is 20% in the acid pickle generated after the chlorohydric acid pickling carbon steel.
The oxidant is oxygen, chlorine or sodium chlorate.
Oxidant oxygen 2-5kg/h is added in the acid pickle containing 20% frerrous chloride per ton.
Oxidant sodium chlorate 0.02kg is added in the acid pickle containing 20% frerrous chloride per ton.
The beneficial effects of the present invention are: being used the present invention provides a kind of preparation method of compound frerrous chloride flocculant
The acid pickle generated after chlorohydric acid pickling carbon steel is precipitated, is filtered, and by heating, negative pressure is vacuumized, and adds oxygen after being concentrated
Agent makes the part ferrous ion after filter in acid pickle be converted into ferric ion after stirring or pump circulation, obtain with
Based on ferrous chloride, compound frerrous chloride flocculant supplemented by ferric trichloride, using the acid pickle generated after chlorohydric acid pickling carbon steel
It as raw material, has saved cost and acid pickle is made to be fully used, regeneration has been played to waste resource, and reduce
Discharge pollution to environment, and by based on ferrous chloride, the flocculation of the compound frerrous chloride flocculant obtained supplemented by ferric trichloride
Effect is better than single ferrous chloride or ferric trichloride flocculant.
Specific embodiment
It in order to illustrate more clearly of the content of present invention, is described as follows with specific embodiment, specific embodiment does not limit this hair
Bright context.
Embodiment 1
A kind of preparation method of compound frerrous chloride flocculant, the preparation method the following steps are included:
(1) use the acid pickle (main component for frerrous chloride, content 20%) generated after chlorohydric acid pickling carbon steel, through precipitating and
Acid pickle after being filtered after filters pressing；
(2) by heating in reaction kettle, negative pressure vacuumizes acid pickle after filtering, and after being concentrated, oxidant oxygen is added, often
Oxidant oxygen 2-5kg/h is added in acid pickle containing 20% frerrous chloride described in ton, after making filter after stirring or pump circulation
Part ferrous ion in acid pickle is converted into ferric ion, obtains based on ferrous chloride, answering supplemented by ferric trichloride
Close frerrous chloride flocculant.
Oxidant sodium chlorate 0.02kg is added in the acid pickle containing 20% frerrous chloride per ton.
Embodiment 2
A kind of preparation method of compound frerrous chloride flocculant, the preparation method the following steps are included:
(1) use the acid pickle (main component for frerrous chloride, content 20%) generated after chlorohydric acid pickling carbon steel, through precipitating and
Acid pickle after being filtered after filters pressing；
(2) by heating in reaction kettle, negative pressure vacuumizes acid pickle after filtering, and after being concentrated, oxidant oxygen is added, often
Oxidant sodium chlorate 0.02kg is added in acid pickle containing 20% frerrous chloride described in ton, makes to filter after stirring or pump circulation
The part ferrous ion in acid pickle is converted into ferric ion afterwards, obtains based on ferrous chloride, supplemented by ferric trichloride
Compound frerrous chloride flocculant.
Reaction mechanism of the invention are as follows: 4FeCl2+O2+4HCl=4FeCl3+2H2O, the present invention is by using chlorohydric acid pickling carbon
The acid pickle generated after steel is precipitated, is filtered, and by heating, negative pressure is vacuumized, and oxidant is added after being concentrated, by stirring
Mix or pump circulation after so that the part ferrous ion after filter in acid pickle is converted into ferric ion, obtain be with ferrous chloride
Main, supplemented by ferric trichloride compound frerrous chloride flocculant, using the acid pickle generated after chlorohydric acid pickling carbon steel as raw material, section
About cost and acid pickle is made to be fully used, regeneration is played to waste resource, and reduce discharge to environment
Pollution, and by based on ferrous chloride, the flocculating effect of the compound frerrous chloride flocculant obtained supplemented by ferric trichloride is better than single
One ferrous chloride or ferric trichloride flocculant.
Every technical staff's notice: of the invention although the present invention is described according to above-mentioned specific embodiment
Invention thought be not limited in the invention, any repacking with inventive concept will all be included in this patent protection of the patent right
In range.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of preparation method of compound frerrous chloride flocculant, which is characterized in that the preparation method the following steps are included:
(1) using the acid pickle generated after chlorohydric acid pickling carbon steel, acid pickle after being filtered after precipitating and filters pressing；
(2) by heating in reaction kettle, negative pressure vacuumizes acid pickle after filtering, and after being concentrated, oxidant is added, by stirring
Mix or pump circulation after so that the part ferrous ion after filter in acid pickle is converted into ferric ion, obtain be with ferrous chloride
Main, supplemented by ferric trichloride compound frerrous chloride flocculant.
2. a kind of preparation method of compound frerrous chloride flocculant according to claim 1, which is characterized in that the salt
The main component in acid pickle generated after pickling carbon steel is frerrous chloride.
3. a kind of preparation method of compound frerrous chloride flocculant according to claim 2, which is characterized in that the salt
The content of frerrous chloride is 20% in the acid pickle generated after pickling carbon steel.
4. a kind of preparation method of compound frerrous chloride flocculant according to claim 3, which is characterized in that the oxygen
Agent is oxygen, chlorine or sodium chlorate.
5. a kind of preparation method of compound frerrous chloride flocculant according to claim 4, which is characterized in that per ton described
The acid pickle containing 20% frerrous chloride in be added oxidant oxygen 2-5kg/h.
6. a kind of preparation method of compound frerrous chloride flocculant according to claim 4, which is characterized in that per ton described
The acid pickle containing 20% frerrous chloride in be added oxidant sodium chlorate 0.02kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811395228.XA CN109368753A (en) | 2018-11-22 | 2018-11-22 | A kind of preparation method of compound frerrous chloride flocculant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811395228.XA CN109368753A (en) | 2018-11-22 | 2018-11-22 | A kind of preparation method of compound frerrous chloride flocculant |
Publications (1)
| Publication Number | Publication Date |
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| CN109368753A true CN109368753A (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811395228.XA Pending CN109368753A (en) | 2018-11-22 | 2018-11-22 | A kind of preparation method of compound frerrous chloride flocculant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110885156A (en) * | 2019-11-24 | 2020-03-17 | 邯郸钢铁集团有限责任公司 | System and method for treating coke oven gas desulfurization and decyanation waste liquid by using waste acid liquid |
| CN110902727A (en) * | 2019-12-16 | 2020-03-24 | 斯瑞尔环境科技股份有限公司 | Preparation method of pharmaceutical-grade ferric trichloride product |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780986A (en) * | 2009-11-19 | 2010-07-21 | 吕奋志 | Method for producing iron chloride by using steel pickling waste liquor |
| CN102807273A (en) * | 2011-06-03 | 2012-12-05 | 同济大学 | Preparation method of polymerized iron flocculant |
| CN105776139A (en) * | 2016-03-16 | 2016-07-20 | 江苏双能太阳能有限公司 | Waste acid treatment process |
| CN106277068A (en) * | 2016-08-15 | 2017-01-04 | 成都四友镀锌设备有限公司 | Galvanizing by dipping waste hydrochloric acid resource reuse method |
-
2018
- 2018-11-22 CN CN201811395228.XA patent/CN109368753A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780986A (en) * | 2009-11-19 | 2010-07-21 | 吕奋志 | Method for producing iron chloride by using steel pickling waste liquor |
| CN102807273A (en) * | 2011-06-03 | 2012-12-05 | 同济大学 | Preparation method of polymerized iron flocculant |
| CN105776139A (en) * | 2016-03-16 | 2016-07-20 | 江苏双能太阳能有限公司 | Waste acid treatment process |
| CN106277068A (en) * | 2016-08-15 | 2017-01-04 | 成都四友镀锌设备有限公司 | Galvanizing by dipping waste hydrochloric acid resource reuse method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110885156A (en) * | 2019-11-24 | 2020-03-17 | 邯郸钢铁集团有限责任公司 | System and method for treating coke oven gas desulfurization and decyanation waste liquid by using waste acid liquid |
| CN110902727A (en) * | 2019-12-16 | 2020-03-24 | 斯瑞尔环境科技股份有限公司 | Preparation method of pharmaceutical-grade ferric trichloride product |
| CN110902727B (en) * | 2019-12-16 | 2022-04-01 | 斯瑞尔环境科技股份有限公司 | Preparation method of pharmaceutical-grade ferric trichloride product |
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Application publication date: 20190222 |
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