CN106745147A - A kind of high-concentration phosphate compound fertilizerses slag recoverying and utilizing method - Google Patents
A kind of high-concentration phosphate compound fertilizerses slag recoverying and utilizing method Download PDFInfo
- Publication number
- CN106745147A CN106745147A CN201611056633.XA CN201611056633A CN106745147A CN 106745147 A CN106745147 A CN 106745147A CN 201611056633 A CN201611056633 A CN 201611056633A CN 106745147 A CN106745147 A CN 106745147A
- Authority
- CN
- China
- Prior art keywords
- phosphate compound
- concentration phosphate
- fertilizerses
- utilizing method
- compound fertilizerses
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
Abstract
The present invention is a kind of high-concentration phosphate compound fertilizerses slag recoverying and utilizing method, and raw materials used is high-concentration phosphate compound fertilizerses waste residue, and waste residue wet-milling is put into reactor, it is diluted with water, is slowly injected into dust technology, is stirred continuously, until no bubble emerges, press filtration, to injecting ammoniacal liquor in filtrate, it is stirred continuously, filtering, to injecting carbon dioxide gas in filtrate, is stirred continuously, filtering, filter residue is Tumblied Dry as finished light calcium carbonate.
Description
Technical field
The present invention relates to trade waste technical field of comprehensive utilization, and in particular to a kind of high-concentration phosphate compound fertilizerses slag reclaims profit
Use method.
Background technology
A kind of industry by-product gypsum produced during production high-concentration phosphate compound fertilizerses, main component is calcium sulphate dihydrate, yield
It is quick to increase, Yunnan, Hubei, Guizhou, Shandong, Anhui, Chongqing, Jiangsu, Sichuan, Guangdong, Shaanxi, this ten provinces and cities' ardealites
Yield accounts for the 91.5% of the total yield of national ardealite.Yield reaches ten thousand tons/year of 4000-7000 over 2010, adds up volume of cargo in storage
More than 100,000,000 tons.Do not applied very well for a long time, current comprehensive utilization ratio only 10% or so, year, utilization was 400~500
Ten thousand tons.
The content of the invention
The technical problems to be solved by the invention are directed to the deficiencies in the prior art, there is provided a kind of new recycling is highly concentrated
The method for spending phosphorus compound fertilizer waste residue.
The technical problems to be solved by the invention are realized by following technical scheme.Waste residue wet-milling is put into instead
Answer in device, be diluted with water, be slowly injected into dust technology, be stirred continuously, until no bubble is emerged, press filtration, to injecting ammonia in filtrate
Water, is stirred continuously, filtering, to injecting carbon dioxide gas in filtrate, is stirred continuously, and filters, and filter residue is Tumblied Dry i.e.
It is finished light calcium carbonate.
Compared with prior art, the rate of recovery of the present invention is up to 90%, and is adapted to industrialized production popularization.
Specific embodiment
Raw material.The high-concentration phosphate compound fertilizerses slag wet-milling for taking attached water 10-30% is put into reactor, is diluted with water.
Acidolysis.Dust technology is slowly injected into, is stirred continuously, until no bubble is emerged.
Press filtration.Mixed liquor injection filter press is carried out into press filtration, retains filtrate.
Removal of impurities.To ammoniacal liquor is injected in filtrate, it is stirred continuously, is 8.5 to filtrate pH value, stands 30 minutes, filtering, removal filter
Slag, retains filtrate.
Carbonization.To injecting carbon dioxide gas in filtrate, it is stirred continuously, filters.
Dry.Filter residue is Tumblied Dry, drying temperature is 120, drying time 2 hours, as finished light carbonic acid
Calcium.
Claims (6)
1. high-concentration phosphate compound fertilizerses slag recoverying and utilizing method, it is characterised in that：Raw materials used is the waste residue of high-concentration phosphate compound fertilizerses production,
Formed through acidolysis, removal of impurities, carbonization, filtering, drying.
2. high-concentration phosphate compound fertilizerses slag recoverying and utilizing method according to claim 1, it is characterised in that：The waste residue is aqueous
The high-concentration phosphate compound fertilizerses waste residue wet-milling of 10-30%.
3. high-concentration phosphate compound fertilizerses slag recoverying and utilizing method according to claim 1, it is characterised in that：The acidolysis is with dilute
Nitric acid is dissolved.
4. high-concentration phosphate compound fertilizerses slag recoverying and utilizing method according to claim 1, it is characterised in that：The removal of impurities is to molten
It is 7.5-10 that ammoniacal liquor to filtrate pH value is injected in liquid, stands 10-60 minutes.
5. high-concentration phosphate compound fertilizerses slag recoverying and utilizing method according to claim 1, it is characterised in that：The carbonization is to molten
Injecting carbon dioxide gas in liquid.
6. high-concentration phosphate compound fertilizerses slag recoverying and utilizing method according to claim 1, it is characterised in that：The drying is with baking
Dry machine drying, drying temperature is 80-150 DEG C, drying time 1-5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611056633.XA CN106745147A (en) | 2016-11-26 | 2016-11-26 | A kind of high-concentration phosphate compound fertilizerses slag recoverying and utilizing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611056633.XA CN106745147A (en) | 2016-11-26 | 2016-11-26 | A kind of high-concentration phosphate compound fertilizerses slag recoverying and utilizing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106745147A true CN106745147A (en) | 2017-05-31 |
Family
ID=58910920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611056633.XA Pending CN106745147A (en) | 2016-11-26 | 2016-11-26 | A kind of high-concentration phosphate compound fertilizerses slag recoverying and utilizing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106745147A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905933A (en) * | 2010-07-28 | 2010-12-08 | 中化重庆涪陵化工有限公司 | Treating method for phosphoric waste water and sludge generated in production process of phosphatic compound fertilizer |
| CN101993105A (en) * | 2010-12-10 | 2011-03-30 | 合肥工业大学 | Method for preparing light calcium carbonate and co-producing ammonium sulfate from phosphogypsum |
| CN102674424A (en) * | 2012-04-28 | 2012-09-19 | 浙江大学 | Method for preparing nanometer calcium carbonate slurry by using waste gypsum as calcium sources, products and application |
-
2016
- 2016-11-26 CN CN201611056633.XA patent/CN106745147A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905933A (en) * | 2010-07-28 | 2010-12-08 | 中化重庆涪陵化工有限公司 | Treating method for phosphoric waste water and sludge generated in production process of phosphatic compound fertilizer |
| CN101993105A (en) * | 2010-12-10 | 2011-03-30 | 合肥工业大学 | Method for preparing light calcium carbonate and co-producing ammonium sulfate from phosphogypsum |
| CN102674424A (en) * | 2012-04-28 | 2012-09-19 | 浙江大学 | Method for preparing nanometer calcium carbonate slurry by using waste gypsum as calcium sources, products and application |
Non-Patent Citations (1)
| Title |
|---|
| 刘健等: "硝酸浸取磷石膏钙渣制备高品质轻质碳酸钙", 《环境化学》 * |
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| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |