CN105271147A - Thermal-process phosphorous sludge type ground phosphate rock binder - Google Patents
Thermal-process phosphorous sludge type ground phosphate rock binder Download PDFInfo
- Publication number
- CN105271147A CN105271147A CN201510685529.6A CN201510685529A CN105271147A CN 105271147 A CN105271147 A CN 105271147A CN 201510685529 A CN201510685529 A CN 201510685529A CN 105271147 A CN105271147 A CN 105271147A
- Authority
- CN
- China
- Prior art keywords
- phosphate rock
- ground phosphate
- phosphorus
- binder
- thermal
- 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.)
- Granted
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
A thermal-process phosphorous sludge type ground phosphate rock binder is characterized in that phosphorus-containing wastewater produced in a thermal-process yellow phosphorus production process is added to an acid sludge stirring tank, pasty acid sludge which contains 25%-30% of free phosphoric acid and 30%-35% of P2O5 and is produced through filtration during thermal-process phosphoric acid preparation from phosphorous sludge is slowly added, uniformly stirred and mixed, a suspension is formed, and the ground phosphate rock binder containing 70%-80% of solid matters and 28%-32% of P2O5 is prepared; the binder and ground phosphate rock after proportional stirring and mixing are subjected to ground phosphate rock press ball forming and drying or a pelleting and roasting process, and phosphorite pellets are produced. Intermediate products of a production process are sufficiently utilized as auxiliary materials and directly reused in the production process, the content of P2O5 in the phosphorite pellets is increased by 5%-8%, so that the Ca-Si ratio (namely, acidity coefficient Mk) of the ground phosphate rock is not increased, and the ground phosphate rock binder is suitable for most ground phosphate rock; efficient recycling and comprehensive utilization of the phosphate rock resource are realized.
Description
Technical field
The present invention relates to a kind of ground phosphate rock binding agent.
Technical background
Rock Phosphate (72Min BPL) is from exploitation, transport, to factory through processing treatment fed to boiler such as fragmentation, oven dry, screenings, lump ore amount only has about 50%, buy the qualified lump ore phosphorus through cleaning, usually also 15% ~ 20% to be lost, the ground phosphate rock enormous amount that the screening of phosphorus production enterprise is remaining, is not used and will causes the significant wastage of phosphor resource and serious financial loss." Yellow Phosphorus Industry entry criteria " that country implements explicitly calls for the breeze utilization ratio of yellow phosphorus enterprise to reach 100%.The technique that part phosphorus production enterprise attempts adopting ground phosphate rock to add clay or water glass dries as pelletizing after binding agent, in the hope of reaching the valuable phosphate rock resource of comprehensive utilization, reducing the object of product cost, but after adding clay or water glass, all reduces P in phosphorus ore
2o
5content, the silico-calcium ratio (acidity quotient Mk) in ground phosphate rock is increased, be not suitable for high silicon ground phosphate rock use.CN102381690 discloses medicament that a kind of rare earth element, sodium-chlor, calcium chloride, zinc chloride, sodium carbonate and salt of wormwood makes and montmorillonite powder in proportion, the powdered rock phosphate oxygen-enriched binder made after mixing, slaking, drying, ball grinds, but have that to add raw material numerous, making processes is tediously long and loaded down with trivial details, is difficult to the defects such as control and additional subsequent process after pyroreaction to the chemical composition in finished product and waste.
Summary of the invention
The object of this invention is to provide the binding agent that the intermediate product acid mud in a kind of hot method mud phosphorus phosphoric acid production is made, solve hot method mud phosphorus relieving haperacidity by-product refuse---the problem of complex utilization of sour mud, improves P in phosphorus ore pelletizing
2o
5content, do not increase the silico-calcium ratio (acidity quotient Mk) of ground phosphate rock, be applicable to most ground phosphate rock and use.This binding agent effectively overcomes the defect that prior art exists, and reduces environmental protection risk, proposes the new technical scheme of a kind of efficient circulation and utilize resources synthetically.
The present invention is achieved through the following technical solutions:
A kind of ground phosphate rock binding agent, in sour mud steel basin, add the phosphorus-containing wastewater that hot method phosphorus production process produces, add-on is 50% of groove volume, starts agitator, and the percentage composition then hot method mud phosphorus phosphoric acid being filtered the free phosphoric acid produced is 25% ~ 30%, P
2o
5percentage composition be 30% ~ 35% paste acid mud slowly add, uniform stirring to be mixed into solid phase be 70% ~ 80%, liquid phase is the suspension of 20% ~ 30%, and making solid content is 70% ~ 80%, P
2o
5percentage composition be 28% ~ 32% ground phosphate rock binding agent.
After this binding agent and ground phosphate rock are uniformly mixed in proportion, dry or granulating roasting technique for ground phosphate rock pressure ball molding, produce phosphorus ore pelletizing.
The intermediate product that the present invention makes full use of phosphoric acid production flow process in Production Flow Chart as auxiliary material direct reuse, is namely made with the intermediate product acid mud in hot method mud phosphorus phosphoric acid production and is produced ground phosphate rock pelletizing binding agent used, by P in ground phosphate rock pelletizing
2o
5content improve 5 ~ 8%., do not increase the silico-calcium ratio (acidity quotient Mk) of ground phosphate rock, be applicable to most ground phosphate rock and use, reduce environmental protection risk, achieve efficient circulation and the comprehensive utilization of phosphate rock resource.
Accompanying drawing explanation
Accompanying drawing 1 is production schematic diagram of the present invention.
Embodiment
Following embodiment is intended to describe in further detail and explain the present invention, instead of limits the present invention by any way.Those of ordinary skill in the art's any simple modifications made for the present invention and replacement, all should fall within protection scope of the present invention.
Embodiment 1
A kind of ground phosphate rock binding agent, in sour mud steel basin, add the phosphorus-containing wastewater that hot method phosphorus production process produces, add-on is 50% of groove volume, starts agitator, and the percentage composition then hot method mud phosphorus phosphoric acid being filtered the free phosphoric acid produced is 25%, P
2o
5percentage composition be 31% paste acid mud slowly add, uniform stirring to be mixed into solid phase be 70%, liquid phase is the suspension of 30%, and making solid content is 70%, P
2o
5percentage composition be 28% ground phosphate rock binding agent.
After this binding agent and ground phosphate rock are uniformly mixed in proportion, dry or granulating roasting technique for ground phosphate rock pressure ball molding, produce phosphorus ore pelletizing.P in ground phosphate rock pelletizing
2o
5content improve 5%.
Embodiment 2
A kind of ground phosphate rock binding agent, in sour mud steel basin, add the phosphorus-containing wastewater that hot method phosphorus production process produces, add-on is 50% of groove volume, starts agitator, and the percentage composition then hot method mud phosphorus phosphoric acid being filtered the free phosphoric acid produced is 28%, P
2o
5percentage composition be 33% paste acid mud slowly add, uniform stirring to be mixed into solid phase be 75%, liquid phase is the suspension of 25%, and making solid content is 75%, P
2o
5percentage composition be 30% ground phosphate rock binding agent.
After this binding agent and ground phosphate rock are uniformly mixed in proportion, dry or granulating roasting technique for ground phosphate rock pressure ball molding, produce phosphorus ore pelletizing.P in ground phosphate rock pelletizing
2o
5content improve 6%.
Embodiment 3
A kind of ground phosphate rock binding agent, in sour mud steel basin, add the phosphorus-containing wastewater that hot method phosphorus production process produces, add-on is 50% of groove volume, starts agitator, and the percentage composition then hot method mud phosphorus phosphoric acid being filtered the free phosphoric acid produced is 30%, P
2o
5percentage composition be 35% paste acid mud slowly add, uniform stirring is also mixed into solid phase 80%, the suspension of liquid phase 20%, and making solid content is 80%, P
2o
5percentage composition be 32% ground phosphate rock binding agent.
After this binding agent and ground phosphate rock are uniformly mixed in proportion, dry or granulating roasting technique for ground phosphate rock pressure ball molding, produce phosphorus ore pelletizing.P in ground phosphate rock pelletizing
2o
5content improve 8%.
Claims (1)
1. a hot method mud phosphorous ground phosphate rock binding agent, it is characterized in that: in sour mud steel basin, add the phosphorus-containing wastewater that hot method phosphorus production process produces, add-on is 50% of groove volume, start agitator, then the percentage composition hot method mud phosphorus phosphoric acid being filtered the free phosphoric acid produced is 25% ~ 30%, P
2o
5percentage composition be 30% ~ 35% paste acid mud slowly add, uniform stirring to be mixed into solid phase be 70% ~ 80%, liquid phase is the suspension of 20% ~ 30%, and making solid content is 70% ~ 80%, P
2o
5percentage composition be 28% ~ 32% ground phosphate rock binding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685529.6A CN105271147B (en) | 2015-10-22 | 2015-10-22 | Thermal-process phosphorous sludge type ground phosphate rock binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685529.6A CN105271147B (en) | 2015-10-22 | 2015-10-22 | Thermal-process phosphorous sludge type ground phosphate rock binder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105271147A true CN105271147A (en) | 2016-01-27 |
| CN105271147B CN105271147B (en) | 2017-05-17 |
Family
ID=55141091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510685529.6A Active CN105271147B (en) | 2015-10-22 | 2015-10-22 | Thermal-process phosphorous sludge type ground phosphate rock binder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105271147B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3531250A (en) * | 1965-07-14 | 1970-09-29 | Knapsack Ag | Process for utilizing phosphate sludge |
| CN104261363A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Method for granulating, molding and calcining ground phosphorite |
| CN104925773A (en) * | 2015-06-17 | 2015-09-23 | 成都乐氏化工工程有限公司 | Method for producing yellow phosphorus with phosphor residue slag and ground phosphate rock |
-
2015
- 2015-10-22 CN CN201510685529.6A patent/CN105271147B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3531250A (en) * | 1965-07-14 | 1970-09-29 | Knapsack Ag | Process for utilizing phosphate sludge |
| CN104261363A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Method for granulating, molding and calcining ground phosphorite |
| CN104925773A (en) * | 2015-06-17 | 2015-09-23 | 成都乐氏化工工程有限公司 | Method for producing yellow phosphorus with phosphor residue slag and ground phosphate rock |
Non-Patent Citations (2)
| Title |
|---|
| 骆彪: "黄磷粉矿的利用与成球技术", 《磷肥与复肥》 * |
| 黄小凤等: "泥磷的处理方法研究", 《中国工程科学》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105271147B (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103058738B (en) | Method for preparing phosphate fertilizer soil conditioner by using phosphate tailings and acidic wastewater | |
| CN104261363B (en) | A kind of ground phosphate rock granulating and forming roasting method | |
| CN104229813B (en) | A kind of method for preparing modified bentonite and application thereof | |
| CN106865927A (en) | A kind of living polymer curing agent for processing riverway sludge or sludge | |
| CN104059673A (en) | Combined stable mineralization restoration agent for treating heavy-metal polluted soil and application method thereof | |
| CN103740373A (en) | Stabilizing agent for heavy metal contaminated soil and preparation method and application thereof | |
| CN102731006B (en) | Phosphogypsum cement retarder and preparation method | |
| CN101880179B (en) | Method for preparing potash fertilizer and building material products from white alkali-making mud | |
| CN104162405A (en) | Modified bentonite with bactericidal effect and preparation method thereof | |
| CN105925268A (en) | Soil restoring agent with heavy metal ion adsorption and immobilization functions, and preparation method thereof | |
| CN104928502A (en) | Method for extracting tungsten from wolframite or scheelite and wolframite mixture ore through adding of high-phosphorus scheelite | |
| CN107033913A (en) | A kind of high activity silicon red mud sill preparation method and applications | |
| CN103073207B (en) | Method for phosphogypsum harmless treatment and conversion into regeneration gypsum resource | |
| CN102363580A (en) | Method for preparing phosphate fertilizer by using sewage residue of phosphate fertilizer plant | |
| CN105271147A (en) | Thermal-process phosphorous sludge type ground phosphate rock binder | |
| CN105217587A (en) | Stone flour type ground phosphate rock binding agent | |
| CN101913571B (en) | Technological process for producing calcium superphosphate by using low-grade phosphate ores | |
| CN104261368A (en) | Powdered rock phosphate pellet pressing, molding and drying method | |
| CN109258393B (en) | Planting soil prepared by solidifying sludge and application thereof | |
| CN104823748A (en) | Method for preparing artificial soil combination from red mud by Bayer method and obtained artificial soil combination | |
| CN102351296A (en) | Sewage treatment agent, preparation method thereof and method for processing sewage | |
| JP2017137203A (en) | Siliceous fertilizer and manufacturing method therefor | |
| CN104261362B (en) | A kind of ground phosphate rock pressure ball molding method of roasting | |
| CN104477963A (en) | Technology for solid barium chloride acidification section | |
| CN105087912B (en) | A kind of iron ore pellets humic acid method for preparing modified bentonite and its application |
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 |