CN107416911A - The device and method of polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor - Google Patents
The device and method of polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor Download PDFInfo
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- CN107416911A CN107416911A CN201710781362.2A CN201710781362A CN107416911A CN 107416911 A CN107416911 A CN 107416911A CN 201710781362 A CN201710781362 A CN 201710781362A CN 107416911 A CN107416911 A CN 107416911A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/009—Compounds containing, besides iron, two or more other elements, with the exception of oxygen or hydrogen
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Abstract
The present invention provides a kind of device that polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor, and it includes gas control system, raw material blending tank, reactor, reaction tower and polymeric kettle；The gas control system is connected with the reactor and the reaction tower respectively, the discharging opening of the raw material blending tank is connected with the charging aperture of the reactor, the discharging opening of the reactor is connected with the charging aperture of the reaction tower, and the discharging opening of the reaction tower is connected with the charging aperture of the reactor and the charging aperture of the polymeric kettle respectively.The apparatus structure is simple, reasonable in design, and catalyst amount is effectively reduced by the liquid material circulation between reactor and reaction tower；Meanwhile the present invention also provides the method for preparing polymerized ferric-aluminum chloride device progress polymerized ferric-aluminum chloride using steel finishing pickle liquor using this.
Description
Technical field
The present invention relates to a kind of device and method that polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor.
Background technology
In steel finishes production of articles, generally use hydrochloric acid continuous acid-washing steel surface is derusted, and generation largely contains
There is the acid-washing waste acid of frerrous chloride and hydrochloric acid.Used pickle liquor processing method mainly has distillation and concentration both at home and abroad at present
Method, roasting-absorption process, solvent extraction and oxidizing process.Wherein, distillation and concentration method recovery hydrochloric acid and frerrous chloride, not from root
Solve spent acid on this, be only a physically separate, the problem of product accumulation can not be handled in be present；Roasting-absorption process and solvent
Extraction is hydrochloric acid and ferrous material (such as Fe in waste acid recovery liquid2O3Powder etc.), oxidation rule is directly to produce nothing using waste liquid
Machine chemical flocculating agent polyferric chloride, but due to being mainly used as oxygen using chlorine, oxygen and sodium chlorate in the method at present production
There is the problems such as reaction pressure is unstable, and dosage is bigger than normal in agent, chlorine and oxygen, sodium chlorate is expensive to be also not suitable for industrial answer
With, and also there is the problems such as equipment investment is big, and production technology is more complicated, and environmental pollution is more serious in this method, cause this acid
The comprehensive utilization of waste liquid is washed by a definite limitation.
Therefore, a kind of recoverying and utilizing method of new steel finishing pickle liquor is studied to have important practical significance.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, so as to provide one kind using steel finishing pickle liquor system
The device and method of standby polymerized ferric-aluminum chloride.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of device that polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor, it includes gas control system, raw material
Blending tank, reactor, reaction tower and polymeric kettle；The gas control system is connected with the reactor and the reaction tower respectively
Connect, the discharging opening of the raw material blending tank is connected with the charging aperture of the reactor, the discharging opening of the reactor with it is described
The charging aperture of reaction tower is connected, the discharging opening of the reaction tower respectively with the charging aperture of the reactor and the polymeric kettle
Charging aperture is connected.
Based on reactor gas above-mentioned, that the gas control system includes oxygen storage tank, is connected with the oxygen storage tank
Body canal and reaction tower gas conduit, the first pressure sensor of the measurement reaction tower internal pressure and measurement reactor
The second pressure sensor of internal pressure；Gas is respectively equipped with the reactor gas conduit and the reaction tower gas conduit
Flowmeter, the reaction tower gas conduit stretch into the bottom of the reaction tower, and the reactor gas conduit stretches into the reaction
The bottom of kettle；So as to the pressure according to the reactor and the pressure of the reaction tower, the reactor gas is adjusted respectively and is led
The gas flow of the gas flow of pipe and the reaction tower gas conduit.
Based on above-mentioned, the top of the reaction tower is provided with spray thrower, and the spray thrower is connected with the inner chamber of the reactor
It is logical.
Based on above-mentioned, the discharging opening of the reaction tower is connected with a liquid material circulating pump, the flow export of the liquid material circulating pump
It is connected respectively with the front end of a return duct and the charging aperture of the polymeric kettle, the end of the return duct and the reactor
Charging aperture is connected.
Based on above-mentioned, the device of polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor also includes still preheater, institute
The discharging opening for stating raw material blending tank is connected with the charging aperture of the still preheater, the discharging opening of the still preheater and the reactor
Charging aperture be connected, liquid material delivery pump is provided between the charging aperture of the discharging opening of the still preheater and the reactor；It is described
The top overfall of reactor is connected with the top overfall of the reaction tower, and two overfalls go out with the still preheater
Material mouth is connected.
Preferably, device for absorbing tail gas is connected with the top of the reaction tower, contains alkali lye in the device for absorbing tail gas
With to nitrogen oxides（NOx）Absorbed, re-form nitrate or nitrite, catalyst recycling can be used as.
Based on above-mentioned, the outer wall of the still preheater, the reactor and the polymeric kettle is equipped with heating mantle, the heating
Put and be provided with Crude product input and Crude product input, the heating mantle of the still preheater, the reactor and the polymeric kettle
It is interconnected.
A kind of method for preparing polymerized ferric-aluminum chloride using steel finishing pickle liquor, steel essence is utilized using above-mentioned
The device that processing pickle liquor prepares polymerized ferric-aluminum chloride prepares polymerized ferric-aluminum chloride；It comprises the following steps：
The atmospheric valve that air opens the reactor and the reaction tower is discharged, steel is finished into pickle liquor, ferrous sulfate
Solution and liquor alumini chloridi are placed in the raw material blending tank and are well mixed, then are delivered to the reactor and the reaction tower
In, until being full of liquid material in the reactor and the reaction tower, the air in the reactor and the reaction tower is discharged,
Stop feedstock transportation；
Form oxygen atmosphere and close the atmospheric valve, open the top overfall of the reactor and the reaction tower, to described
Oxygen is passed through in reactor and the reaction tower, oxygen is assembled on the top of the reactor and the reaction tower, it is described anti-
Answer the liquid material in kettle and the reaction tower by the top overfall overflow into the still preheater, until in the still preheater
Liquid material starts bubbling, closes the top overfall of the reactor and the reaction tower, keeps the reactor and the reaction
The internal pressure of tower is stable, and the raw material blending tank starts to convey liquid material into the still preheater；
The reactor and the still preheater are heated to 55~65 DEG C by liquid material circulation, open the liquid material of the reaction tower bottom
Circulating pump, the liquid material circulating pump connection return duct and reaction tower top spray thrower, close the liquid material circulating pump and
The connection of the polymeric kettle, liquid material circulation is formed between the reactor and the reaction tower；In liquid material cyclic process, in institute
The top for stating reaction tower adds catalyst and stabilizer, is oxidized the ferrous ion in liquid material, is then shut off the backflow
Pipe, the connection of the liquid material circulating pump and the polymeric kettle is opened, the liquid material after oxidation is entered institute from the reaction tower bottom
State in polymeric kettle and be incubated, polymerize, obtain composite flocculant polymerized ferric-aluminum chloride；
Liquid material in still preheater described in repetitive cycling is delivered to the reactor by liquid material delivery pump, repeats the liquid material and follows
The step of ring.
Based on above-mentioned, ferrous ion, trivalent aluminium ion and hydrionic mol ratio are 1 in the raw material blending tank:（1
~3）：（0.7~1）.
Based on above-mentioned, the catalyst is nitrate or nitrite, and the dosage of the catalyst is the steel finishing
The 0.1%~0.2% of work pickle liquor.
Based on above-mentioned, the stabilizer is phosphoric acid, phosphate or dihydric phosphate, and the dosage of the stabilizer is the steel
The 0.5%~1.5% of iron finishing pickle liquor.
Compared with prior art, the present invention has prominent substantive distinguishing features and marked improvement.Specifically, the present invention carries
The device of polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor for a kind of, it includes raw material blending tank, still preheater, anti-
Kettle, reaction tower and polymeric kettle are answered, raw material is well mixed in the raw material blending tank, then is preheated in the still preheater,
Subsequently into the reactor, liquid material is made between the reactor and the reaction tower by spray thrower and liquid material circulating pump
Constantly circulation, until the ferrous ion in liquid material is oxidized, the liquid material after oxidation is polymerize into the polymeric kettle, is obtained
Composite flocculant polymerized ferric-aluminum chloride；Meanwhile nitrite or nitrate is added in oxidizing process as catalyst, the catalysis
Agent has strong oxidizing property in sour environment, ferrous ion is oxidized to form ferric ion, and oxidizing process is close
Carried out in closure system, oxidizing process forms NOxNitric acid can be formed with water and oxygen reaction to continue to carry out oxygen to ferrous ion
Change, the enclosed system is greatly reduced the dosage of catalyst, reduces and prepares polyaluminium using steel finishing pickle liquor
The cost of iron aluminium；Meanwhile the device also includes device for absorbing tail gas, remaining NO after oxidizing processxBy in device for absorbing tail gas
Alkali liquor absorption re-form nitrite or nitrate, as catalyst recycling；In addition, the still preheater, described anti-
The outer wall of kettle and the polymeric kettle is answered to be equipped with heating mantle, the heating mantle is provided with Crude product input and heating medium goes out
Mouthful, the heating mantle of the still preheater, the reactor and the polymeric kettle is interconnected, and heating medium can be in the preheating
Flowed between the heating mantle of kettle, the reactor and the polymeric kettle, can so make full use of the heat energy of heating medium, reduced
Energy loss.
The present invention also provide using this using steel finishing pickle liquor prepare polymerized ferric-aluminum chloride device prepare it is poly-
The method for closing ferric-aluminum chloride, first frerrous chloride and Friedel-Crafts reaction spent acid are added in steel finishes pickle liquor in this method
Liquid, regulation ferrous ion, trivalent aluminium ion and hydrionic mol ratio are 1:（1~3）：（0.7~1）, lead to frerrous chloride and adjust
Section, avoid generating safety problem caused by hydrogen after adding iron powder, added in the reaction tower carries out oxidation reaction process steady
Agent is determined, to maintain the sour environment in the reaction tower to promote oxidation reaction to carry out；It is this method mild condition, simple to operate, fit
In commercial Application.
Brief description of the drawings
Fig. 1 is the structural representation for the device for preparing polymerized ferric-aluminum chloride in the present invention using steel finishing pickle liquor
Figure.
Fig. 2 is the structural representation for the device for preparing polymerized ferric-aluminum chloride in embodiment 2 using steel finishing pickle liquor
Figure.
In figure：1. raw material blending tank；2. still preheater；3. reactor；4. reaction tower；5. polymeric kettle；6. liquid material delivery pump；7.
Liquid material circulating pump；8. spray thrower；9. device for absorbing tail gas；10. heat medium delivery pump；11. reactor gas conduit；It is 12. anti-
Answer tower gas conduit.
Embodiment
Below by embodiment, technical scheme is described in further detail.
Embodiment 1
As shown in figure 1, the present embodiment provides a kind of device that polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor, it
Including gas control system, raw material blending tank 1, still preheater 2, reactor 3, reaction tower 4 and polymeric kettle 5；The gas control system
System is connected with the reactor 3 and the reaction tower 4 respectively；The discharging opening of the raw material blending tank 1 respectively with the preheating
The charging aperture of kettle 2 is connected with the charging aperture of the reactor 3, so that the raw material blending tank 1 is to the still preheater 2 and described
Reactor 3 is fed, and the discharging opening of the still preheater 2 is connected with the charging aperture of the reactor 3, so that material is described
Entering the reactor 3 after being preheated in still preheater 2, the discharging opening of the reactor 3 is connected with the charging aperture of reaction tower 4, with
Toilet states reactor 3 and reaction tower 4 is fed, the discharging opening of the reaction tower 4 respectively with the charging aperture of the reactor 3 and
The charging aperture of the polymeric kettle 5 is connected, so that reaction tower 4 described in course of reaction and the reactor 3 carry out Matter Transfer,
Material after the completion of reaction in the reaction tower 4 enters in the polymeric kettle 5, the top overfall of the reactor 3 and described
The top overfall of reaction tower 4 is connected, and discharging opening of two overfalls with the still preheater 2 is connected, so as to described anti-
Kettle 3 and the material of the reaction tower 4 is answered to be flowed into by the overfall in the still preheater 2.
Further, the charging aperture of the reaction tower 4 and discharging opening are the same liquid material positioned at the bottom of reaction tower 4
Inlet and outlet are, it is necessary to explanation, and in other examples, the charging aperture and discharging opening of the reaction tower 4 can not be same
It is individual.
Further, liquid material delivery pump 6 is provided between the discharging opening of the still preheater 2 and the charging aperture of the reactor 3.
Further, the discharging opening of the reaction tower 4 is connected with a liquid material circulating pump 7, the outflow of the liquid material circulating pump 7
Mouth is connected with the front end of a return duct and the charging aperture of the polymeric kettle 5 respectively, the end of the return duct and the reaction
The charging aperture of kettle 3 is connected.
Further, the top of the reaction tower 4 is provided with spray thrower 8, the inner chamber of the spray thrower 8 and the reactor 3
It is connected, so that the material in the reactor 3 is entered in the reaction tower 4 by the spray thrower 8.
Further, the reactor gas that the gas control system includes oxygen storage tank, is connected with the oxygen storage tank
Described in body canal 11 and reaction tower gas conduit 12, the first pressure sensor of the measurement internal pressure of reaction tower 4 and measurement
The second pressure sensor of the internal pressure of reactor 3；On the reactor gas conduit 11 and the reaction tower gas conduit 12
Gas flowmeter is respectively equipped with, the reaction tower gas conduit 12 stretches into the bottom of the reaction tower 4, and the reactor gas is led
Pipe 11 stretches into the bottom of the reactor 3；So as to the pressure and the pressure of the reaction tower 4 according to the reactor 3, adjust respectively
The gas flow of the whole reactor gas conduit 11 and the reaction tower gas conduit 12.
Further, the top of the reaction tower 4 is connected with device for absorbing tail gas 9, contains in the device for absorbing tail gas
Alkali lye, can be to NOxAbsorbed.
Further, each several part is connected by pipeline in the device, and valve is provided with each pipeline, to control flow direction.
Embodiment 2
The present embodiment and the difference of embodiment 1 are：As shown in Fig. 2 the still preheater 2, the reactor 3 and described
The outer wall of polymeric kettle 5 is equipped with heating mantle, and the heating mantle is provided with Crude product input and Crude product input, the preheating
The heating mantle of kettle 2, the reactor 3 and the polymeric kettle 5 is interconnected, so that the heating medium in each heating mantle can phase
Mutually circulation, specifically it is provided with and adds between the heating mantle of the reactor 3 and the polymeric kettle 5 and the heating mantle of the polymeric kettle 5
Thermal medium delivery pump 10 is in other examples, more convenient in order to heat the conveying of medium, it is necessary to explanation, heating
The number of medium delivery pump and position can be set according to delivery requirements.
Embodiment 3
As shown in Fig. 2 the present embodiment provides a kind of method for preparing polymerized ferric-aluminum chloride using steel finishing pickle liquor, profit
Polymerized ferric-aluminum chloride device is prepared using steel finishing pickle liquor prepare polymerized ferric-aluminum chloride with the offer of embodiment 2；Its
Comprise the following steps：
The atmospheric valve that air opens the reactor 3 and the reaction tower 4 is discharged, steel is finished into pickle liquor, protochloride
Ferrous solution and Friedel-Crafts reaction acid pickle are placed in the raw material blending tank 1 and are well mixed, then are delivered to the reactor 3 and described
In reaction tower 4, until liquid material is full of in the reactor 3 and the reaction tower 4, in the reactor 3 and the reaction tower 4
Air is discharged, and stops feedstock transportation；Wherein, ferrous ion in the raw material blending tank 1, trivalent aluminium ion and hydrionic
Mol ratio is 1：2：0.8；
Form oxygen atmosphere and close the atmospheric valve, open the top overfall of the reactor 3 and the reaction tower 4, make institute
State top overfall with the still preheater 2 to be connected, be passed through oxygen into the reactor 3 and the reaction tower 4, oxygen is existed
The top aggregation of the reactor 3 and the reaction tower 4, until the liquid material in the reactor 3 and the reaction tower 4 passes through institute
Top overfall overflow is stated into the still preheater 2, and liquid material starts bubbling in the still preheater 2, closes the He of reactor 3
The top overfall of the reaction tower 4, keeps the internal pressure stabilization of the reactor 3 and the reaction tower 4, and the raw material mixes
Tank 1 is closed to start to convey liquid material into the still preheater；
The reactor 3 and the still preheater 2 are heated to 55~65 DEG C by liquid material circulation, open the liquid of the bottom of reaction tower 4
Expect circulating pump, the return duct and the top spray thrower 8 of the reaction tower 4 of the liquid material circulating pump 7 connection, close the liquid material circulation
The connection of pump 7 and the polymeric kettle 5, liquid material circulation is formed between the reactor 3 and the reaction tower 4；Liquid material is circulated throughout
Cheng Zhong, catalyst and stabilizer are added at the top of the reaction tower 4, is oxidized the ferrous ion in liquid material, Ran Houguan
The return duct is closed, the connection of the liquid material circulating pump 7 and the polymeric kettle 5 is opened, makes the liquid material after oxidation from the reaction
The bottom of tower 4, which enters in the polymeric kettle 5, to be incubated, and is polymerize, obtains composite flocculant polymerized ferric-aluminum chloride；Wherein, institute
It is natrium nitrosum to state catalyst, and the dosage of the catalyst finishes the 0.1% of pickle liquor for the steel, the stabilizer
For phosphoric acid, the dosage of the stabilizer finishes the 1% of pickle liquor for the steel；
Liquid material in still preheater 2 described in repetitive cycling is delivered to the reactor 3 by liquid material delivery pump 6, repeats the liquid material
The step of circulation.
It should be noted that in other examples, it can be adjusted by adding frerrous chloride in the raw material blending tank
Ferrous ion, trivalent aluminium ion and hydrionic mol ratio are 1:（1~3）：（0.7~1）；The catalyst can be as needed
Nitrite or nitrate, such as potassium nitrite, sodium nitrate, potassium nitrate are selected, the dosage of the catalyst is steel essence
Process the 0.1%~0.2% of pickle liquor；The stabilizer can select phosphoric acid, phosphate or dihydric phosphate as needed, described
Potassium phosphate, sodium phosphate, potassium dihydrogen phosphate or sodium dihydrogen phosphate, the dosage of the stabilizer may be selected in phosphate or dihydric phosphate
Finish pickle liquor for the steel 0.5%~1.5%.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among the claimed technical scheme scope of the present invention.
Claims (10)
1. a kind of device that polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor, it is characterised in that it includes gas
Control system, raw material blending tank, reactor, reaction tower and polymeric kettle；The gas control system respectively with the reactor and
The reaction tower is connected, and the discharging opening of the raw material blending tank is connected with the charging aperture of the reactor, the reactor
Discharging opening be connected with the charging aperture of the reaction tower, the discharging opening of the reaction tower charging aperture with the reactor respectively
It is connected with the charging aperture of the polymeric kettle.
2. the device according to claim 1 that polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor, its feature
It is, the gas control system includes oxygen storage tank, the reactor gas conduit being connected with the oxygen storage tank and reaction
The of tower gas conduit, the first pressure sensor of the measurement reaction tower internal pressure and the measurement reactor internal pressure
Two pressure sensors；Gas flowmeter is respectively equipped with the reactor gas conduit and the reaction tower gas conduit, it is described
Reaction tower gas conduit stretches into the bottom of the reaction tower, and the reactor gas conduit stretches into the bottom of the reactor.
3. the device according to claim 1 or 2 that polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor, it is special
Sign is that the top of the reaction tower is provided with spray thrower, the intracavity inter-connection of the spray thrower and the reactor.
4. the device according to claim 3 that polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor, its feature
It is, the discharging opening of the reaction tower is connected with a liquid material circulating pump, and the flow export of the liquid material circulating pump flows back with one respectively
The front end of pipe is connected with the charging aperture of the polymeric kettle, and the end of the return duct is connected with the charging aperture of the reactor
Connect.
5. the device according to claim 1 that polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor, its feature
It is, it also includes still preheater, and the discharging opening of the raw material blending tank is connected with the charging aperture of the still preheater, the preheating
The discharging opening of kettle is connected with the charging aperture of the reactor, the charging aperture of the discharging opening of the still preheater and the reactor it
Between be provided with liquid material delivery pump；The top overfall of the reactor is connected with the top overfall of the reaction tower, and two overflow
Discharging opening of the head piece with the still preheater is connected.
6. the device according to claim 5 that polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor, its feature
It is, the outer wall of the still preheater, the reactor and the polymeric kettle is equipped with heating mantle, and the heating mantle is provided with heating
Media outlet and Crude product input, the heating mantle of the still preheater, the reactor and the polymeric kettle are interconnected.
A kind of 7. method for preparing polymerized ferric-aluminum chloride using steel finishing pickle liquor, it is characterised in that will using right
The device for preparing polymerized ferric-aluminum chloride using steel finishing pickle liquor described in 1~6 any one is asked to prepare poly-ferric chloride
Aluminium；It comprises the following steps：
The atmospheric valve that air opens the reactor and the reaction tower is discharged, steel is finished into pickle liquor, ferrous sulfate
Solution and liquor alumini chloridi are placed in the raw material blending tank and are well mixed, then are delivered to the reactor and the reaction tower
In, until being full of liquid material in the reactor and the reaction tower, the air in the reactor and the reaction tower is discharged,
Stop feedstock transportation；
Form oxygen atmosphere and close the atmospheric valve, open the top overfall of the reactor and the reaction tower, to described
Oxygen is passed through in reactor and the reaction tower, oxygen is assembled on the top of the reactor and the reaction tower, it is described anti-
Answer the liquid material in kettle and the reaction tower by the top overfall overflow into the still preheater, until in the still preheater
Liquid material starts bubbling, closes the top overfall of the reactor and the reaction tower, keeps the reactor and the reaction
The internal pressure of tower is stable, and the raw material blending tank starts to convey liquid material into the still preheater；
The reactor and the still preheater are heated to 55~65 DEG C by liquid material circulation, open the liquid material of the reaction tower bottom
Circulating pump, the liquid material circulating pump connection return duct and reaction tower top spray thrower, close the liquid material circulating pump and
The connection of the polymeric kettle, liquid material circulation is formed between the reactor and the reaction tower；In liquid material cyclic process, in institute
The top for stating reaction tower adds catalyst and stabilizer, is oxidized the ferrous ion in liquid material, is then shut off the backflow
Pipe, the connection of the liquid material circulating pump and the polymeric kettle is opened, the liquid material after oxidation is entered institute from the reaction tower bottom
State in polymeric kettle and be incubated, polymerize, obtain composite flocculant polymerized ferric-aluminum chloride；
Liquid material in still preheater described in repetitive cycling is delivered to the reactor by liquid material delivery pump, repeats the liquid material and follows
The step of ring.
8. the method according to claim 7 for preparing polymerized ferric-aluminum chloride using steel finishing pickle liquor, its feature
It is, ferrous ion, trivalent aluminium ion and hydrionic mol ratio are 1 in the raw material blending tank:（1~3）：（0.7~
1）.
9. the method for preparing polymerized ferric-aluminum chloride using steel finishing pickle liquor according to claim 7 or 8, it is special
Sign is that the catalyst is nitrate or nitrite, and the dosage of the catalyst finishes pickle liquor for the steel
0.1%~0.2%.
10. the method according to claim 9 for preparing polymerized ferric-aluminum chloride using steel finishing pickle liquor, its feature
It is, the stabilizer is phosphoric acid, phosphate or dihydric phosphate, and the dosage of the stabilizer finishes pickling for the steel
The 0.5%~1.5% of waste liquid.
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| CN201710781362.2A CN107416911B (en) | 2017-09-01 | 2017-09-01 | Device and method for preparing polyaluminium ferric chloride by utilizing steel finishing pickling waste liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470545A (en) * | 2020-03-20 | 2020-07-31 | 同济大学 | Continuous production device and method for polyferric chloride |
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| CN102153511A (en) * | 2010-02-12 | 2011-08-17 | 江苏圣奥化学科技有限公司 | Industrial synthetic method for rubber antioxidant (RD) |
| WO2016086826A1 (en) * | 2014-12-01 | 2016-06-09 | 四川玖长科技有限公司 | Improved device for preparing phosphoric acid from kiln egression flue gas of phosphoric acid process of kiln method, and phosphoric acid preparing process |
| CN207192829U (en) * | 2017-09-01 | 2018-04-06 | 河北正润环境科技有限公司 | The device of polymerized ferric-aluminum chloride is prepared using steel finishing pickle liquor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470545A (en) * | 2020-03-20 | 2020-07-31 | 同济大学 | Continuous production device and method for polyferric chloride |
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