CN108796410A - A kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide - Google Patents
A kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide Download PDFInfo
- Publication number
- CN108796410A CN108796410A CN201810862477.9A CN201810862477A CN108796410A CN 108796410 A CN108796410 A CN 108796410A CN 201810862477 A CN201810862477 A CN 201810862477A CN 108796410 A CN108796410 A CN 108796410A
- Authority
- CN
- China
- Prior art keywords
- ammonium hydroxide
- zinc
- fluxing agent
- potassium chlorate
- mixed solution
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/38—Wires; Tubes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention provides a kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide, include the following steps：The solution that the fluxing agent for impregnating steel pipe forms in except iron pipe conduit with potassium chlorate and ammonium hydroxide be sufficiently mixed reacting, obtains mixed solution A；Mixed solution A after reaction is passed directly into fluxing agent surge tank, Fe (OH) is made in fluxing agent surge tank3Precipitation forms the mixed solution B with flocculent deposit；Mixed solution B in fluxing agent surge tank is subjected to press filtration, removal Fe (OH)3, the return of filtered solution is helped into coating bath, use can be continued cycling through.The present invention improves the utilization rate of zinc, due to being the totally enclosed processing system in pipeline, reduces the volatilization of potassium chlorate and ammonium hydroxide, it is greatly improved in the utilization rate of medicament, the thermal loss for reducing fluxing agent, reduces the discharge of waste, saves a large amount of costs of material.
Description
Technical field
The invention belongs to hot dip galvanizing process fields, and iron is removed online using potassium chlorate and the zinc-plated of ammonium hydroxide more particularly, to a kind of
Technique.
Background technology
Galvanizing due to it in terms of Treatment of Metal Surface plating thickness, beauty, strong corrosion resistance the advantages that be metal watch
The more satisfactory means of surface treatment.Dry method, wet method and wet-dry change it is zinc-plated in, widely used solvent is zinc chloride and sal-ammoniac
The double salt mixed.Chlorination Zn content is in 400J000g/L in our dry galvanizing technological procedure requirement solvent；Sal-ammoniac
Content is in 60~200g/L；Molysite content is not more than 30g/L；Content of hydrochloric acid is not more than 10g/L.Steel tube hot galvanizing is using at solvent
Reason, main purpose be cleaning base steel, reduce steel pipe when soak zinc around zinc liquid surface tension, solvent cover pipe surface can prevent
Steel pipe re-oxidation after pickling.
The raw material of production galvanized pipe is continuous oven Coiling Welded Pipe at present, manages interior remaining iron scale and iron filings are more, steel pipe
The iron scale on surface is also thicker, although after overpickling and washing, manages interior remaining iron scale and iron filings can't be complete
It rinses well.In addition it is to reduce acid consumption, we often control that acid solution is relatively low in acid concentration and the higher state of iron salt concentration.Cause
This, molysite is crystallized in tube surface, not clean due to washing, the iron scale and iron filings quilt of molysite and remaining in pipe when applying solvent
Bring into flux bath, the molysite content in flux bath made to be continuously increased, molysite content often exceeds regulation, up to 60g/L with
On, zinc slag content in zinc pot is resulted in this way and is increased, and zinc consumption index is directly enhanced.
Invention content
In view of this, the present invention is directed to propose a kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide, long-term to protect
It holds frerrous chloride content in fluxing agent slot and removes iron speed hereinafter, increasing in 1g/l, reduce zinc soil and cadmia in hot galvanizing process
Generation, save cost of material.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of zinc-plated pre-treating technology of steel pipe includes sour processing procedure, two-stage dilute hydrochloric acid cleaning process and molten from front to back
Agent processing procedure, sour processing procedure, which includes eo-acid pond, old sour pond and spent acid pond, eo-acid pond, the injection of concentrated hydrochloric acid；The dilute salt of two-stage
Sour cleaning process includes two-stage dilute hydrochloric acid pond；Solvent processing procedure includes helping coating bath and online deferrization process, online deferrization process
By the ferrous ions helped in coating bath, precipitates and prepare ferroso-ferric oxide.
Using the zinc-plated online deferrization process of potassium chlorate and ammonium hydroxide, include the following steps：
Step 1：The solution that the fluxing agent for impregnating steel pipe forms in except iron pipe conduit with potassium chlorate and ammonium hydroxide is filled
Divide hybrid reaction, obtains mixed solution A；
Step 2：Mixed solution A after reaction is passed directly into fluxing agent surge tank, makes Fe in fluxing agent surge tank
(OH)3Precipitation forms the mixed solution B with flocculent deposit；
Step 3：Mixed solution B in fluxing agent surge tank is subjected to press filtration, removal Fe (OH)3, will be filtered molten
Liquid return helps coating bath, can continue cycling through use.
Further, 190g/l zinc chloride and 220g/l potassium chloride are contained in fluxing agent.
Further, the molar ratio of the Chlorine in Solution acid potassium and ammonium hydroxide of potassium chlorate and ammonium hydroxide composition is 1-2:1-1.5.
Further, the reaction temperature of step 1 is 55-70 DEG C.
Further, the PH in step 1 is controlled in 4-5.
Compared with the existing technology, it is of the present invention using the zinc-plated online deferrization process of potassium chlorate and ammonium hydroxide have it is following
Advantage：
Zinc-plated online deferrization process of the present invention using potassium chlorate and ammonium hydroxide improves the utilization rate of zinc, due to
Be the totally enclosed processing system in pipeline, reduce the volatilization of potassium chlorate and ammonium hydroxide, relatively the original facture of falling slot and
The online reaction method of reaction tank, is greatly improved in the utilization rate of medicament, and quickly, effectively, reduction helps plating to iron removal
The thermal loss of agent reduces the discharge of waste, has significant Social benefit and economic benefit, in addition, can keep for a long time
Frerrous chloride content reduces in hot galvanizing process zinc soil and cadmia in 1g/l hereinafter, keep fluxing agent limpid in cosolvent slot
Generation, save a large amount of costs of material.
Specific implementation mode
In addition to being defined, technical term used in following embodiment has universal with those skilled in the art of the invention
The identical meanings of understanding.Test reagent used in following embodiment is unless otherwise specified conventional biochemical reagent；It is described
Experimental method is unless otherwise specified conventional method.
With reference to embodiment, the present invention will be described in detail.
Embodiment I
With the fluxing agent of 55 DEG C of immersions steel pipe in removing iron pipe conduit with molar ratio be 1：1 potassium chlorate and ammonium hydroxide is formed
Solution be sufficiently mixed, mixed process is automatically controlled by PLC, and entire reaction is completed in the duct.Then by helping plating
Agent surge tank makes Fe (OH) in fluxing agent surge tank3Precipitation is united at flocculent deposit.Then it is squeezed by high-pressure pump
To filtration system, removal Fe (OH)3.Limpid fluxing agent up to standard return helps coating bath after filtering, the Fe (OH) being press-filtered out3Precipitation system
Make red soil.
Embodiment II
With the fluxing agent of 60 DEG C of immersions steel pipe in removing iron pipe conduit with molar ratio be 1:1.2 potassium chlorate KClO3With
The solution that ammonium hydroxide is formed is sufficiently mixed, and mixed process is automatically controlled by PLC, and entire reaction is completed in the duct.Then
By fluxing agent surge tank, Fe (OH) is made in fluxing agent surge tank3Precipitation is united at flocculent deposit.Then pass through height
Press pump is driven into filtration system, removal Fe (OH)3.Limpid fluxing agent up to standard return helps coating bath after filtering, the Fe being press-filtered out
(OH)3Precipitation makes red soil.
Embodiment III
With the fluxing agent of 65 DEG C of immersions steel pipe in removing iron pipe conduit with molar ratio be 1.2：1.5 potassium chlorate KClO3
The solution formed with ammonium hydroxide is sufficiently mixed, and mixed process is automatically controlled by PLC, and entire reaction is completed in the duct.So
Afterwards by fluxing agent surge tank, Fe (OH) is made in fluxing agent surge tank3Precipitation is united at flocculent deposit.Then pass through
High-pressure pump is driven into filtration system, removal Fe (OH)3Limpid fluxing agent up to standard return helps coating bath after filtering, the Fe being press-filtered out
(OH)3Precipitation makes red soil.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (5)
1. a kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide, it is characterised in that：Include the following steps：
Step 1：The fluxing agent for impregnating the steel pipe to come from diluted acid pond is formed in except iron pipe conduit with potassium chlorate and ammonium hydroxide
Solution carry out being sufficiently mixed reaction, obtain mixed solution A；
Step 2：Mixed solution A after reaction is passed directly into fluxing agent surge tank, Fe (OH) is made in fluxing agent surge tank3It is heavy
Precipitation goes out, and forms the mixed solution B with flocculent deposit；
Step 3：Mixed solution B in fluxing agent surge tank is subjected to press filtration, removal Fe (OH)3, filtered solution is returned
It returns and helps coating bath, use can be continued cycling through.
2. the zinc-plated online deferrization process according to claim 1 using potassium chlorate and ammonium hydroxide, it is characterised in that：Fluxing agent
In contain 190g/l zinc chloride and 220g/l potassium chloride.
3. the zinc-plated online deferrization process according to claim 1 using potassium chlorate and ammonium hydroxide, it is characterised in that：Potassium chlorate
It is 1-2 with the Chlorine in Solution acid potassium of ammonium hydroxide composition and the molar ratio of ammonium hydroxide:1-1.5.
4. the zinc-plated online deferrization process according to claim 1 using potassium chlorate and ammonium hydroxide, it is characterised in that：Step 1
Reaction temperature be 55-70 DEG C.
5. the zinc-plated online deferrization process according to claim 1 using potassium chlorate and ammonium hydroxide, it is characterised in that：Step 1
In PH control in 4-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810862477.9A CN108796410A (en) | 2018-08-01 | 2018-08-01 | A kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810862477.9A CN108796410A (en) | 2018-08-01 | 2018-08-01 | A kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108796410A true CN108796410A (en) | 2018-11-13 |
Family
ID=64078704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810862477.9A Pending CN108796410A (en) | 2018-08-01 | 2018-08-01 | A kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108796410A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974834A (en) * | 2006-12-01 | 2007-06-06 | 华南理工大学 | Comprehensive plating promoter treatment process and apparatus for hot galvanizing production line |
| CN101144143A (en) * | 2007-10-26 | 2008-03-19 | 陈冬 | Processing technique of plating auxiliary agent for hot galvanizing |
| CN205821053U (en) * | 2016-06-30 | 2016-12-21 | 天津鑫广环保设备制造有限公司 | A kind of heat zinc coating auxiliary agent iron removal system |
| CN107311365A (en) * | 2017-09-07 | 2017-11-03 | 彭春来 | A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system and method |
-
2018
- 2018-08-01 CN CN201810862477.9A patent/CN108796410A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974834A (en) * | 2006-12-01 | 2007-06-06 | 华南理工大学 | Comprehensive plating promoter treatment process and apparatus for hot galvanizing production line |
| CN101144143A (en) * | 2007-10-26 | 2008-03-19 | 陈冬 | Processing technique of plating auxiliary agent for hot galvanizing |
| CN205821053U (en) * | 2016-06-30 | 2016-12-21 | 天津鑫广环保设备制造有限公司 | A kind of heat zinc coating auxiliary agent iron removal system |
| CN107311365A (en) * | 2017-09-07 | 2017-11-03 | 彭春来 | A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system and method |
Non-Patent Citations (1)
| Title |
|---|
| 杨冰等: "连续清除热镀锌助镀剂中铁离子的工艺技术", 《电镀与涂饰》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100594252C (en) | Method for preparing plating aid for preventing omission of heat dip galvanization | |
| CN104053820B (en) | Prevent the method for the xanthochromia of the surface of steel plate after pickling | |
| CN107419271B (en) | A kind of agent of environment protection chemical strip and strip method for nickel coating | |
| CN105132932B (en) | A kind of galvanized part returns the recovery and treatment method for washing acid pickle | |
| CN110344067A (en) | A kind of steel band acid washing method | |
| AU2017265072A1 (en) | Method of Producing Metal-Coated Steel Strip | |
| CN101144143A (en) | Processing technique of plating auxiliary agent for hot galvanizing | |
| CN106756949B (en) | A kind of preparation method of vitrified agent | |
| CN107312924B (en) | A kind of stainless steel band continuous annealing acid washing method | |
| US3144361A (en) | Pretreating iron or steel | |
| CN109504928A (en) | Electric power tower steelwork hot galvanizing production method | |
| CN108796410A (en) | A kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide | |
| CN108754374A (en) | A kind of zinc-plated online deferrization process using hydrogen peroxide and limewash | |
| CN108193154A (en) | A kind of steel fastener galvanizing no white cigarette fluxing agent and its technique for applying | |
| CN111320300A (en) | Recycling method of zinc-iron acid liquid | |
| CN107513682B (en) | A kind of zincincation of acid circulation | |
| CN102851674A (en) | Thermal pickling process of pure titanium plate | |
| CN1210444C (en) | Neutral salt electrolytic liquid for treating device of stainless steel, and method and apparatus for descaling stainless steel | |
| CN101445952A (en) | Purifying treatment method for waste silver electrolyte | |
| ES2212500T3 (en) | PROCEDURE AND INSTALLATION OF WASTE TREATMENT CONTAINING ZINC BY BASIC LIXIVIATION. | |
| CN205774804U (en) | A kind of reverse-flow type descaling bath of auto-control acid strength | |
| CN108048773A (en) | In steel wire used in a kind of rare earth zinc steel strand wires and derusting method | |
| CN104389003A (en) | Surface treatment liquid for iron and steel | |
| CN104775127B (en) | A kind of pickle for removing oxidation ferrum | |
| CN102660721A (en) | Galvanizing assistant liquid cycling treatment method used in hot galvanizing technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181113 |
|
| WD01 | Invention patent application deemed withdrawn after publication |