CN105132607B - A kind of technique that iron is reclaimed in the waste residue from lead-zinc smelting - Google Patents
A kind of technique that iron is reclaimed in the waste residue from lead-zinc smelting Download PDFInfo
- Publication number
- CN105132607B CN105132607B CN201510501237.2A CN201510501237A CN105132607B CN 105132607 B CN105132607 B CN 105132607B CN 201510501237 A CN201510501237 A CN 201510501237A CN 105132607 B CN105132607 B CN 105132607B
- Authority
- CN
- China
- Prior art keywords
- iron
- lead
- zinc smelting
- gypsum
- waste residue
- 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.)
- Expired - Fee Related
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses the technique that iron is reclaimed in a kind of waste residue from lead-zinc smelting, it is characterised in that interface modifier, lead-zinc smelting waste residue, lime are added in water, after stirring, the mixture aqueous solution of iron colloid and gypsum is obtained.Addition iron colloidal interface adsorbent, foaming agent, the agent of gypsum Interfacial Adsorption separate gypsum and iron colloid in mixture aqueous solution.After iron colloid is dehydrated, iron ore concentrate is obtained.The present invention without " three wastes " discharge, with resource circulation utilization, environmental protection the features such as.
Description
Technical field
The present invention relates to a kind of method of metal recovery, the side of metal is reclaimed in more particularly to a kind of waste residue from lead-zinc smelting
Method.
Background technology
China's lead zinc metal production occupies the first in the world for years.While product production capacity is developed rapidly, production
During the process problems of various waste residues progressively show especially, be not only related to the comprehensive cyclic utilization of resource, and be more related to
Influence to natural environment.As certain Lead And Zinc Smelter produce a kind of iron slag, main sulfur-bearing and iron, it is other also containing Pb,
The heavy metals such as Zn, Cu, Cd, if stacked, will be polluted to environment.
The content of the invention
It is an object of the invention to provide a kind of method that metallic iron is reclaimed in waste residue from lead-zinc smelting, it is possible to resolve lead-zinc smelting
The environmental problem of waste residue, turns waste into wealth.
To achieve the above objectives, the present invention, which is adopted the following technical scheme that, is achieved：
The technique that iron is reclaimed in a kind of waste residue from lead-zinc smelting, it is characterised in that comprise the steps：
(1) interface modifier is added in water, after stirring, lead-zinc smelting waste residue is added, is passed through air stirring uniform；
Lime is added, air is passed through and continues to stir, obtain the mixed solution of iron colloid and gypsum, wherein, water is lead-zinc smelting waste residue
10 times of quality；Interface modifier is the 0.01-0.1% of lead-zinc smelting slag quality；Using lignin sulfonic acid sodium salt water reducer,
Any of naphthalene water reducer, aliphatic water reducing agent, amino water reducer, polycarboxylate water-reducer, lime are lead-zinc smelting waste residue
The 10% of quality；
(2) 0.01-0.1% of lead-zinc smelting slag quality iron colloidal interface adsorbent, lead is added in mixed solution
The 0.01-0.1% of zinc abstraction slag quality foaming agent, the 0.01-0.1% of lead-zinc smelting slag quality gypsum Interfacial Adsorption
Agent, stirring obtained after standing surface it is floating have iron colloid, the mixed solution that bottom is gypsum, wherein, iron colloidal interface adsorbent is
Any of oleic acid, tall oil, oxidized paraffin wax soap, sodium sulfonate；Foaming agent is terpenic oil, cresotinic acid, mixed fatty alcohol, hexanol
Any of；The agent of gypsum Interfacial Adsorption is any of starch, tannin, methylcellulose；
(3) gypsum and iron colloid are separated, reclaims iron.
In above-mentioned technique, step (3) is described to refer to gypsum and the separation of iron colloid, with scraper plate by mixed solution Surface Fe glue
Body is scraped, and remaining gypsum solution carries out press filtration separation, obtains gypsum.Water obtained by during the gypsum solution progress press filtration separation
Reusable edible is in step (1).
Step (3) technique for reclaiming iron is after iron colloid is dehydrated, iron ore concentrate to be obtained, with dilution heat of sulfuric acid to iron
Concentrate is washed, and obtains iron.The iron colloid dehydration thermal source used is the blast furnace gas that steel mill is produced.
It is an advantage of the invention that adding interface modifier in water, be conducive to lead-zinc smelting waste residue to disperse, be suspended in it
In water, the use of water is reduced.
Lime is dissolved in after water, is changed into calcium hydroxide, with alkalescence.Using lime as alkali, the pH value of adjustment solution changes slag
Particle surface electrically, is conducive to the separation of variety classes slag.In addition, the characteristics of lime has cheap.
Iron colloidal interface adsorbent is adsorbed on the surface of iron colloid, makes the characteristics of iron colloid has hydrophobic, in aqueous
Float.Foaming agent produces bubble in aqueous, when bubble rises, takes the iron colloid that there is collecting agent on surface to the water surface.Gypsum
Interfacial Adsorption agent is conducive to the separation of iron colloid and gypsum in the absorption of gypsum surface.
The blast furnace gas that the iron colloid isolated is produced with steel-making is dehydrated as thermal source, with the energy is saved, is given up
The characteristics of gas is comprehensively utilized.
Embodiment
The technique that iron is reclaimed in a kind of waste residue from lead-zinc smelting, is comprised the following steps that：
(1) interface modifier is added in water, after stirring, lead-zinc smelting waste residue is added, is passed through air stirring uniform；
Lime is added, air is passed through and continues after stirring, obtain the mixture aqueous solution of iron colloid and gypsum.
(2) iron colloidal interface adsorbent, foaming agent, gypsum Interfacial Adsorption agent are added in mixture aqueous solution, table is obtained
Float the gypsum solution for having iron colloid in face；
(3) solution surface iron colloid is scraped with scraper plate, reclaimed；The remaining gypsum aqueous solution, carries out press filtration separation,
Obtain gypsum, the aqueous solution then reusable edible.The specific method for reclaiming iron is that the blast furnace gas produced with steel mill is as warm
Source, after iron colloid is dehydrated, obtains iron ore concentrate；Iron ore concentrate is washed with dilution heat of sulfuric acid again, you can obtain iron.
The content of iron in the mixture aqueous solution of the colloid that taps a blast furnace, iron colloid and gypsum is scraped by chemical analysis scraper plate respectively,
The ratio between the former with the latter, obtains the rate of recovery of iron.The rate of recovery of the iron of embodiment 1- embodiments 12 is all higher than 80%.
The formula of raw material is shown in table 1.
Table 1
Claims (5)
1. the technique of iron is reclaimed in a kind of waste residue from lead-zinc smelting, it is characterised in that comprise the steps：
(1) interface modifier is added in water, after stirring, lead-zinc smelting waste residue is added, is passed through air stirring uniform；Again plus
Enter lime, be passed through air and continue to stir, obtain the mixed solution of iron colloid and gypsum, wherein, water is lead-zinc smelting slag quality
10 times；Interface modifier is the 0.01-0.1% of lead-zinc smelting slag quality；Interface modifier is that lignin sulfonic acid sodium salt subtracts
Any of aqua, naphthalene water reducer, aliphatic water reducing agent, amino water reducer, polycarboxylate water-reducer, lime is lead-zinc smelting
The 10% of slag quality；
(2) 0.01-0.1% of lead-zinc smelting slag quality iron colloidal interface adsorbent, lead zinc smelting is added in mixed solution
The gypsum Interfacial Adsorption agent of the 0.01-0.1% of slag quality foaming agent, the 0.01-0.1% of lead-zinc smelting slag quality is refined,
Stirring obtained after standing surface it is floating have iron colloid, the mixed solution that bottom is gypsum, wherein, iron colloidal interface adsorbent is oil
Any of acid, tall oil, oxidized paraffin wax soap, sodium sulfonate；Foaming agent is in terpenic oil, cresotinic acid, mixed fatty alcohol, hexanol
It is any；The agent of gypsum Interfacial Adsorption is any of starch, tannin, methylcellulose；
(3) gypsum and iron colloid are separated, reclaims iron.
2. the technique of iron is reclaimed from lead-zinc smelting waste residue as claimed in claim 1, it is characterised in that step (3) is described will
Gypsum and the separation of iron colloid refer to that scraped mixed solution Surface Fe colloid with scraper plate, remaining gypsum solution carries out press filtration point
From obtaining gypsum.
3. the technique of iron is reclaimed from lead-zinc smelting waste residue as claimed in claim 2, it is characterised in that the gypsum solution is entered
Water circulation use obtained by when row press filtration is separated is in step (1).
4. the technique of iron is reclaimed from lead-zinc smelting waste residue as claimed in claim 1, it is characterised in that step (3) is described to return
The technique for receiving iron is after iron colloid is dehydrated, to obtain iron ore concentrate, iron ore concentrate is washed with dilution heat of sulfuric acid, obtains iron.
5. the technique of iron is reclaimed from lead-zinc smelting waste residue as claimed in claim 4, it is characterised in that the iron colloid dehydration
Thermal source used is the blast furnace gas that steel mill is produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501237.2A CN105132607B (en) | 2015-08-14 | 2015-08-14 | A kind of technique that iron is reclaimed in the waste residue from lead-zinc smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501237.2A CN105132607B (en) | 2015-08-14 | 2015-08-14 | A kind of technique that iron is reclaimed in the waste residue from lead-zinc smelting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105132607A CN105132607A (en) | 2015-12-09 |
| CN105132607B true CN105132607B (en) | 2017-07-25 |
Family
ID=54718172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510501237.2A Expired - Fee Related CN105132607B (en) | 2015-08-14 | 2015-08-14 | A kind of technique that iron is reclaimed in the waste residue from lead-zinc smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105132607B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3653875A (en) * | 1971-03-02 | 1972-04-04 | Us Interior | Recovery of metals and phosphate from waste phosphate sludge |
| US3976743A (en) * | 1974-09-13 | 1976-08-24 | Cominco Ltd. | Treatment of zinc plant residue |
| CN103011726A (en) * | 2012-12-25 | 2013-04-03 | 陕西理工学院 | Solidification treatment process of smelting waste of lead and zinc |
| CN104528716A (en) * | 2015-01-08 | 2015-04-22 | 齐鲁工业大学 | Hydrochloric acid steel pickling waste liquor resource application technology |
-
2015
- 2015-08-14 CN CN201510501237.2A patent/CN105132607B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3653875A (en) * | 1971-03-02 | 1972-04-04 | Us Interior | Recovery of metals and phosphate from waste phosphate sludge |
| US3976743A (en) * | 1974-09-13 | 1976-08-24 | Cominco Ltd. | Treatment of zinc plant residue |
| CN103011726A (en) * | 2012-12-25 | 2013-04-03 | 陕西理工学院 | Solidification treatment process of smelting waste of lead and zinc |
| CN104528716A (en) * | 2015-01-08 | 2015-04-22 | 齐鲁工业大学 | Hydrochloric acid steel pickling waste liquor resource application technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105132607A (en) | 2015-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4450108B1 (en) | Separation of arsenic minerals from high arsenic grade copper-containing materials | |
| CN101209853B (en) | Method for preparing cupric sulfate from spongy copper and copper-containing acid pickle | |
| CN101760613B (en) | Method for leaching zinc-containing ores | |
| CN101871046A (en) | Method for recycling heavy metal pollution wastes | |
| CN104148190B (en) | Method for making high-grade powdered iron through high-sulfur and low-grade sulfuric acid residues | |
| CN101338365B (en) | Synthesizing method for molybdenum-nickel ore | |
| CN102527497B (en) | Beneficiation method for separating zinc sulfide ores from sulphur in wet-method zinc smelting slag | |
| CN105349792A (en) | Process for recycling brass furnace slag | |
| CN103184334A (en) | Selection-smelting combined technology for treating mixed ore containing molybdenum, oxygen, sulfur and copper | |
| CN109355498B (en) | Process method for recovering copper from low-grade copper oxide ore | |
| CN105039712B (en) | Technology for recycling valuable metal from jarosite slag | |
| CN102703690A (en) | Method for separating high-ferrosilicon complex zinc oxide lean ores through combined treatment | |
| CN102441492B (en) | Method for acquiring high-quality sulfur concentrates from copper tailings | |
| CN104388687A (en) | Comprehensive recycling utilization method for sintering electric dust removal ash | |
| CN104313336B (en) | Zinc-containing pyrite cinder processing method | |
| CN101224443A (en) | Comprehensive utilization method of iron sulfide minerals | |
| CN105132607B (en) | A kind of technique that iron is reclaimed in the waste residue from lead-zinc smelting | |
| CN105366728B (en) | A kind of method that iron vitriol slag prepares iron oxide red | |
| CN105385858B (en) | A kind of iron vitriol slag prepares iron oxide red and the method for reclaiming silver | |
| CN108722681B (en) | Silicon slag flotation method for effectively improving recovery rate of silicon metal | |
| CN113981217B (en) | Method for selectively separating copper, zinc and iron in low-grade complex chalcopyrite | |
| CN102534208B (en) | Method for alkaline leaching of waste residue containing zinc ferrite or lean zinc ore | |
| CN105399132A (en) | Technology for preparing tribasic copper chloride and tetrabasic zinc chloride by utilization of brass slag and zinc-containing flue ash | |
| CN104711428A (en) | Method for preparing and recovering noble metal in pickling sludge | |
| CN104711427B (en) | Method for preparing and recovering sponge copper metal in pickling sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170725 Termination date: 20180814 |