CN103435085A - Method for producing fine calcium chloride with NP waste residues - Google Patents
Method for producing fine calcium chloride with NP waste residues Download PDFInfo
- Publication number
- CN103435085A CN103435085A CN2013103297068A CN201310329706A CN103435085A CN 103435085 A CN103435085 A CN 103435085A CN 2013103297068 A CN2013103297068 A CN 2013103297068A CN 201310329706 A CN201310329706 A CN 201310329706A CN 103435085 A CN103435085 A CN 103435085A
- Authority
- CN
- China
- Prior art keywords
- calcium chloride
- waste residues
- solution
- fine calcium
- 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.)
- Pending
Links
Landscapes
- Fertilizers (AREA)
Abstract
The invention relates to a technology of utilizing NP (nitric phosphate) waste residues, in particular to a method for producing fine calcium chloride with NP waste residues. The method mainly solves the problems the NP waste residues are high in energy consumption and cost, severe in loss, and the like in application. The method adopts the technical scheme that the method for producing fine calcium chloride with the NP waste residues comprises the steps of dissolving the NP waste residues in a reaction kettle with technical hydrochloric acid, when a pH (Potential of Hydrogen) value of a solution is greater than or equal to 3, indirectly heating the solution in a reaction jacket with steam till the temperature rises to 105-110 DEG C for 30-50min, performing settlement, preliminary filtration and refined filtration on the solution in the reaction jacket, obtaining a fine calcium chloride solution, condensing and evaporating the fine calcium chloride solution, classifying, drying, and obtaining fine calcium chloride. The method has the advantages of short flow, stable production, low energy consumption and cost, high value added, good economic benefits and the like.
Description
Technical field
The present invention relates to NP waste residue utilization technology, specially refer to a kind of method that the NP of utilization waste residue is produced meticulous calcium chloride.
Background technology
The NP waste residue, be the industrial residue that the Phosphate Fertilizer Nitrate with Frozen Method device is discharged, and its major ingredient is light calcium carbonate, is secondly moisture and acid non-soluble substance etc., is for wet production cement to the processing of NP waste residue at present, or fills out ditch.For wet-process cement, production technology is ripe, reliable product quality, and, energy consumption is high, and cost is high, suffers great loss, and is faced with and eliminates or eliminate.
Summary of the invention
The present invention exists energy consumption high mainly for the NP waste residue utilization, and cost is high, and the problem such as suffer great loss, provide a kind of NP of utilization waste residue to produce the method for meticulous calcium chloride.
The present invention addresses the above problem the technical scheme of taking to be:
A kind of NP of utilization waste residue is produced the method for meticulous calcium chloride, in reactor with industrial dissolving with hydrochloric acid NP waste residue, when pH is more than or equal to 3, while by the steam indirect heating, being warming up to 105～110 ℃, constant temperature maintains 30～50 minutes, then by the solution sedimentation in reactor, initial filter, essence filter, obtain meticulous calcium chloride solution, meticulousr calcium chloride solution is carried out to the evaporation concentration granulating and drying obtain meticulous calcium chloride.
The present invention utilizes the NP waste residue to produce meticulous calcium chloride, has widened the technology of utilizing of NP waste residue, the road of having pointed out an environmental benefit, economic benefit, doulbe-sides' victory for the utilization of NP waste residue.Flow process of the present invention is brief, it is stable to produce, energy consumption is low, cost is low, added value is high, good in economic efficiency.
Embodiment
Embodiment 1
A kind of NP of utilization waste residue is produced the method for meticulous calcium chloride, in reactor with industrial dissolving with hydrochloric acid NP waste residue, when pH equals 3, while by the steam indirect heating, being warming up to 105 ℃, constant temperature maintains 50 minutes, then by the solution sedimentation in reactor, initial filter, essence filter, obtain meticulous calcium chloride solution, meticulousr calcium chloride solution is carried out to the evaporation concentration granulating and drying obtain meticulous calcium chloride.
Embodiment 2
A kind of NP of utilization waste residue is produced the method for meticulous calcium chloride, in reactor with industrial dissolving with hydrochloric acid NP waste residue, when pH equals 4, while by the steam indirect heating, being warming up to 108 ℃, constant temperature maintains 40 minutes, then by the solution sedimentation in reactor, initial filter, essence filter, obtain meticulous calcium chloride solution, meticulousr calcium chloride solution is carried out to the evaporation concentration granulating and drying obtain meticulous calcium chloride.
Embodiment 3
A kind of NP of utilization waste residue is produced the method for meticulous calcium chloride, in reactor with industrial dissolving with hydrochloric acid NP waste residue, when pH equals 6, while by the steam indirect heating, being warming up to 110 ℃, constant temperature maintains 30 minutes, then by the solution sedimentation in reactor, initial filter, essence filter, obtain meticulous calcium chloride solution, meticulousr calcium chloride solution is carried out to the evaporation concentration granulating and drying obtain meticulous calcium chloride.
Claims (1)
1. a method of utilizing the NP waste residue to produce meticulous calcium chloride, it is characterized in that: in reactor with industrial dissolving with hydrochloric acid NP waste residue, when pH is more than or equal to 3, while by the steam indirect heating, being warming up to 105～110 ℃, constant temperature maintains 30～50 minutes, then by the solution sedimentation in reactor, initial filter, essence filter, obtain meticulous calcium chloride solution, meticulousr calcium chloride solution is carried out to the evaporation concentration granulating and drying obtain meticulous calcium chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103297068A CN103435085A (en) | 2013-07-31 | 2013-07-31 | Method for producing fine calcium chloride with NP waste residues |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103297068A CN103435085A (en) | 2013-07-31 | 2013-07-31 | Method for producing fine calcium chloride with NP waste residues |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103435085A true CN103435085A (en) | 2013-12-11 |
Family
ID=49688838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103297068A Pending CN103435085A (en) | 2013-07-31 | 2013-07-31 | Method for producing fine calcium chloride with NP waste residues |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103435085A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825058A (en) * | 2012-09-05 | 2012-12-19 | 山东东佳集团股份有限公司 | Method for recycling calcium sulfate waste residues generated in titanium dioxide acidic waste water |
| CN102873074A (en) * | 2012-09-15 | 2013-01-16 | 克拉玛依市金山石油化工有限公司 | Environment-friendly method for treating calcium petroleum sulfonate waste residues |
| CN102910665A (en) * | 2012-11-06 | 2013-02-06 | 荣殿相 | Method for producing industrial grade calcium chloride by taking calcium carbide slurry as raw material |
-
2013
- 2013-07-31 CN CN2013103297068A patent/CN103435085A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825058A (en) * | 2012-09-05 | 2012-12-19 | 山东东佳集团股份有限公司 | Method for recycling calcium sulfate waste residues generated in titanium dioxide acidic waste water |
| CN102873074A (en) * | 2012-09-15 | 2013-01-16 | 克拉玛依市金山石油化工有限公司 | Environment-friendly method for treating calcium petroleum sulfonate waste residues |
| CN102910665A (en) * | 2012-11-06 | 2013-02-06 | 荣殿相 | Method for producing industrial grade calcium chloride by taking calcium carbide slurry as raw material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107082523B (en) | Wet desulfurization wastewater recycling treatment system and treatment method thereof | |
| CN102963874B (en) | Method for producing industrial-grade potassium dihydrogen phosphate (KH2PO4) by wet method purified phosphoric acid and potassium sulfate | |
| CN103467245B (en) | Method for complexing and removing water contained in ethanol and water mixed solution by utilizing eutectic solvent | |
| CN104230660B (en) | A kind of preparation method of 95 grades of tetramethylolmethanes | |
| CN104876248A (en) | Method for preparing potassium sulfate and co-producing ammonium chloride | |
| CN102504253B (en) | Environmental-protection preparation method for calcium polyaspartate as agricultural calcium supplement | |
| CN102718268A (en) | Method for producing solid poly ferric sulfate | |
| CN104477944A (en) | Process of preparing anhydrous sodium sulfate from dilute brine in chlor-alkali industry | |
| CN101633584B (en) | A method for producing nitrogen phosphorus potassium compound fertilizer with water-insoluble potassium-containing rock | |
| CN103708453B (en) | A kind of method of rice husk co-producing active carbon and silicon composite fertilizer | |
| CN103923164A (en) | Resourceful treatment method of casing-heparin processing wastewater | |
| CN103772045B (en) | Water-soluble phosphatic fertilizer and preparation method thereof | |
| CN101914580A (en) | Calcium salt method for producing citric acid by recycling waste residues calcium sulfate | |
| CN103864044B (en) | Microwave method is utilized ferrophosphorus to be converted into the method for battery-grade iron phosphate | |
| CN101585719A (en) | Preparation method of weak acid high-content boron fertilizer | |
| CN101260129A (en) | Method of purifying tannic acid | |
| CN103159195A (en) | Method for preparing potassium dihydrogen phosphate from low-concentration wet-process phosphoric acid | |
| CN105293796A (en) | Method for co-production of sodalumite and gypsum through activated clay production mother liquid | |
| CN104692837A (en) | Method of comprehensively utilizing sludge | |
| CN103435085A (en) | Method for producing fine calcium chloride with NP waste residues | |
| CN103044541A (en) | Method for preparing phosphorylated collagen | |
| CN103011230B (en) | Low-cost method for preparing nano calcium sulfate | |
| CN104497176B (en) | Preparation method of low-haze polyvinyl butyral resin | |
| CN105314780A (en) | Trimethyl phosphite wastewater treatment method | |
| CN113800541A (en) | Processing technology for refining lithium chloride by lithium carbonate precipitation and conversion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131211 |