CN106694234A - Process employing phosphogypsum residue field backwater as pH regulator in reverse flotation of phosphorite - Google Patents
Process employing phosphogypsum residue field backwater as pH regulator in reverse flotation of phosphorite Download PDFInfo
- Publication number
- CN106694234A CN106694234A CN201611251272.4A CN201611251272A CN106694234A CN 106694234 A CN106694234 A CN 106694234A CN 201611251272 A CN201611251272 A CN 201611251272A CN 106694234 A CN106694234 A CN 106694234A
- Authority
- CN
- China
- Prior art keywords
- backwater
- flotation
- phosphorite
- regulator
- reverse flotation
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
- B03D2203/06—Phosphate ores
Abstract
The invention discloses a process employing phosphogypsum residue field backwater as a pH regulator in reverse flotation of phosphorite and belongs to the field of phosphorus chemical industry and phosphorite flotation. According to the process, the acidic phosphogypsum residue field backwater is taken as a raw material and used as a pH regulator in reverse flotation of phosphorite. After a flotation process, a phosphorite flotation index meets the requirement of dihydrate-process production of wet-process phosphoric acid. The process disclosed by the invention is simple, has high applicability, realizes a coupling technology of phosphorus chemical industry and phosphorite flotation and is of great significance from a resource perspective and an environment protection perspective.
Description
Technical field
It is used for phosphate reverse flotation pH regulators the present invention relates to gypsum stack backwater.Category phosphorous chemical industry and flotation of phosphate rock life
Product field.
Background technology
Ardealite refer in phosphoric acid production with sulfuric acid treating phosphorite when the solid slag that produces.Ardealite outward appearance is yellowish-white
Color, light gray-white or fine blackish-gray powder shape solid, main component is CaSO4·2H2O, its mass fraction is usual more than 85%,
It is similar to the natural gypsum；PH is about 1.5~4.5, and in acidity, moisture content is very high, and contained free water energy reaches 20~25%；It is viscous
Property it is stronger, its bulk density reach 1000kg/m3, suitable with water, ardealite also contains various other impurity in addition.
For a long time, industry by-product gypsum particularly ardealite is always common problem in the industry.According to incompletely statistics, 2014
About 1.86 hundred million tons of year China industry by-product gypsum amount, wherein about 80,000,000 tons of ardealite.To the end of the year 2014, China's industrial by-product stone
, more than 3.7 hundred million tons, wherein ardealite is more than 200,000,000 tons for cream accumulation volume of cargo in storage.
Existing overwhelming majority ardealite in all parts of the country uses outdoor stacked configuration, and this has not only occupied tract, and phosphorus stone
Soluble phosphorus pentoxide and fluorine etc. can be leached with rainwater in cream, produce acid waste water, cause soil, water system, air it is serious
Pollution, harm is caused to the living environment of the mankind.Objectionable impurities elements enrichment (collection) in the outdoor storeyard of usual ardealite
To in slag backwater, current small part backwater is used for the wash water of ardealite three, and most of backwater is not utilized, long-term outdoor presence of banking up
Preserve difficult and leak risks.
Using sulfuric acid as regulator, sulfuric acid causes in phosphate rock floating device traditional phosphate reverse flotation technique as regulator
In the production equipment such as tank diameter, flotation device and ore pulp pipe there are problems that calcium sulfate scaling, especially sulfuric acid in water return pipeline
Calcium fouling is very serious, net sectional area, increase flow resistance in water return pipeline is reduced after knot calcium, while these foulants
(dirt) and for bacterium provides breeding environment well, transport pipeline corrosion rate is accelerated, shorten pipeline life, influenceed
Production, increases cost, in production process usually because scale problems cause damp production.
The content of the invention
The present invention is directed to above-mentioned problem, proposes that a kind of gypsum stack backwater is adjusted for phosphate reverse flotation pH
Agent.
The technical solution adopted by the present invention is：Gypsum stack backwater is used for phosphate reverse flotation pH regulators, and its feature exists
In phosphate rock floating regulator groove with gypsum stack backwater as raw material, is delivered to, the pH regulators as phosphate reverse flotation make
With after a step reverse floatation process, phosphate rock floating index reaches the requirement that two water thing methods produce phosphoric acid by wet process.
It is described to use 60~100kg of gypsum stack backwater per 1 ton of phosphorus concentrate of flotation.
F≤0.1%, SO in the gypsum stack backwater4 2-≤ 1.0%.
The present invention directly uses gypsum stack backwater (phosphoric acid F≤0.1%, SO in phosphate rock floating4 2-≤ 1.0%.) make
For medium adjustment is used, the phosphoric acid slag acid produced in technical process can avoid the knot calcium problem of production equipment.In phosphoric acid industry
Gypsum stack backwater
Mechanism of the present invention：Phosphoric acid is as medium adjustment Main Function：(1) slurry pH is adjusted：Due to the pH of ore pulp
Value often directly or indirectly influences the floatability of its Minerals, so often adding regulator to change and adjust in floatation process
The floatability of whole various mineral.Under certain flotation conditions, mineral can be floated and the pH lines of demarcation referred to as critical pH that can not be floated；
(2) the effect activity of other medicaments is adjusted：What medicament and mineral surfaces were had an effect, be some of medicament active ion (or
Molecule).When the timing of dosing one, the content of the medicament ion in ore pulp is decided by the pH value of ore pulp again；(3) eliminate to flotation
The influence of harmful ion：Often containing many " unavoidable ions " in ore pulp, most of dissociation from soluble-salt in ore also have
From industrial water and medicament, their influences to flotation are more complicated, existing activation, inhibitory action, and consuming for also having is each
Plant medicament.To eliminate its influence, typical media regulator is acted on therewith, is generated more insoluble chemical compound and is precipitated to eliminate it；
(4) dispersion of adjustment sludge and reunion：Thin sludge often makes different mineral particles without selectively reuniting, and destroys the selection of flotation
Property, concentrate quality is reduced, and valuable mineral is wrapped in floc sedimentation being easy to run off in mine tailing.
The present invention utilizes gypsum stack backwater for phosphate reverse flotation pH regulators, realizes phosphorous chemical industry and phosphate rock floating ore deposit
Change coupling technique, with very big economic benefit.
Gypsum stack backwater is used for phosphate reverse flotation pH regulators by the present invention, on the one hand avoids gypsum stack backwater
Osmosis pollution underground water source problem；It is used for phosphate reverse flotation pH regulators using slag backwater simultaneously, is produced in technical process
The acid of phosphoric acid slag can avoid equipment knot calcium problem, be on the other hand to significantly reduce technique use cost；Kill two birds with one stone.
The present invention has a process is simple, strong applicability, realizes phosphorous chemical industry and flotation of phosphate rock mineralising coupling technique, no matter from money
Source or environmental angle are all significant
Specific embodiment
The present invention is delivered in phosphate rock floating regulator groove, as phosphate reverse flotation with gypsum stack backwater as raw material
PH regulators；After a step reverse floatation process, phosphate rock floating index reaches the requirement that two water thing methods produce phosphoric acid by wet process.Wherein
60~100kg of slag backwater is needed per 1 ton of phosphorus concentrate of flotation.F≤0.1%, SO in the gypsum stack backwater4 2-≤ 1.0%.
Embodiment 1
Gypsum stack backwater with phosphoric acid industry generation is delivered in phosphate rock floating regulator groove, as phosphorus as raw material
The regulator of ore deposit flotation is used, and concentrate addition is 75kg/ tons.Addition collecting agent in reverse floatation, after a step reverse floatation process, phosphorus
Concentrate floatation indicators reach the requirement that two water thing methods produce phosphoric acid by wet process.
Embodiment 2
Gypsum stack backwater with phosphoric acid industry generation is delivered in phosphate rock floating regulator groove, as phosphorus as raw material
The regulator of ore deposit flotation, concentrate addition is 86kg/ tons.Addition collecting agent in reverse floatation, after a step reverse floatation process, phosphorus concentrate
Floatation indicators reach the requirement that two water thing methods produce phosphoric acid by wet process.
Embodiment 3
Gypsum stack backwater with phosphoric acid industry generation is delivered in phosphate rock floating regulator groove, as phosphorus as raw material
The regulator of ore deposit flotation, concentrate addition is 69kg/ tons.Addition collecting agent in reverse floatation, after a step reverse floatation process, phosphorus concentrate
Floatation indicators reach the requirement that two water thing methods produce phosphoric acid by wet process.
Claims (3)
1. gypsum stack backwater is used for phosphate reverse flotation pH regulators, it is characterised in that with gypsum stack backwater as raw material,
It is delivered in phosphate rock floating regulator groove, is used as the pH regulators of phosphate reverse flotation, after a step reverse floatation process, phosphorus ore
Floatation indicators reach the requirement that two water thing methods produce phosphoric acid by wet process.
2. gypsum stack backwater according to claim 1 is used for phosphate reverse flotation pH regulators, it is characterised in that often float
Selecting 1 ton of phosphorus concentrate need to use 60~100kg of gypsum stack backwater.
3. gypsum stack backwater according to claim 1 is used for phosphate reverse flotation pH regulators, it is characterised in that described
F≤0.1% in gypsum stack backwater, SO4 2-≤ 1.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251272.4A CN106694234A (en) | 2016-12-29 | 2016-12-29 | Process employing phosphogypsum residue field backwater as pH regulator in reverse flotation of phosphorite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251272.4A CN106694234A (en) | 2016-12-29 | 2016-12-29 | Process employing phosphogypsum residue field backwater as pH regulator in reverse flotation of phosphorite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106694234A true CN106694234A (en) | 2017-05-24 |
Family
ID=58906070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611251272.4A Pending CN106694234A (en) | 2016-12-29 | 2016-12-29 | Process employing phosphogypsum residue field backwater as pH regulator in reverse flotation of phosphorite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106694234A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076006A (en) * | 2019-04-01 | 2019-08-02 | 湖北省黄麦岭磷化工有限责任公司 | A method of extracting pyrite from phosphorus tailing |
| CN110090737A (en) * | 2019-04-23 | 2019-08-06 | 云南磷化集团有限公司 | A method of processing collophane direct flotation concentrate pulp and tailing ore pulp |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443607A (en) * | 2003-04-22 | 2003-09-24 | 武汉化工学院 | Phosphate mineral inhibitor, its application in reverse floatation of phosphorus ore and preparation method |
| CN1724340A (en) * | 2005-06-08 | 2006-01-25 | 贵州宏福实业开发有限总公司 | Process for comprehensive using waste water of phosphatic fertilize and phosphorous chemical industrial |
| CN101759165A (en) * | 2009-11-17 | 2010-06-30 | 瓮福（集团）有限责任公司 | Method for recovering P2O5 in phosphorus ore dressing mill tailings |
| CN102166541A (en) * | 2010-12-07 | 2011-08-31 | 昆明川金诺化工有限公司 | Method for selecting phosphate ore by fluosilicic acid |
| CN103817012A (en) * | 2013-12-26 | 2014-05-28 | 武汉工程大学 | Pulp pH combined regulator for phosphorite flotation process |
| CN103880135A (en) * | 2014-03-28 | 2014-06-25 | 中蓝连海设计研究院 | Treatment method of wastewater generated during phosphorus ore direct and reverse flotation |
| CN103949352A (en) * | 2014-05-06 | 2014-07-30 | 云南磷化集团有限公司 | Method for applying phosphorus sludge acid in phosphorite flotation regulator |
-
2016
- 2016-12-29 CN CN201611251272.4A patent/CN106694234A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443607A (en) * | 2003-04-22 | 2003-09-24 | 武汉化工学院 | Phosphate mineral inhibitor, its application in reverse floatation of phosphorus ore and preparation method |
| CN1724340A (en) * | 2005-06-08 | 2006-01-25 | 贵州宏福实业开发有限总公司 | Process for comprehensive using waste water of phosphatic fertilize and phosphorous chemical industrial |
| CN101759165A (en) * | 2009-11-17 | 2010-06-30 | 瓮福（集团）有限责任公司 | Method for recovering P2O5 in phosphorus ore dressing mill tailings |
| CN102166541A (en) * | 2010-12-07 | 2011-08-31 | 昆明川金诺化工有限公司 | Method for selecting phosphate ore by fluosilicic acid |
| CN103817012A (en) * | 2013-12-26 | 2014-05-28 | 武汉工程大学 | Pulp pH combined regulator for phosphorite flotation process |
| CN103880135A (en) * | 2014-03-28 | 2014-06-25 | 中蓝连海设计研究院 | Treatment method of wastewater generated during phosphorus ore direct and reverse flotation |
| CN103949352A (en) * | 2014-05-06 | 2014-07-30 | 云南磷化集团有限公司 | Method for applying phosphorus sludge acid in phosphorite flotation regulator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076006A (en) * | 2019-04-01 | 2019-08-02 | 湖北省黄麦岭磷化工有限责任公司 | A method of extracting pyrite from phosphorus tailing |
| CN110090737A (en) * | 2019-04-23 | 2019-08-06 | 云南磷化集团有限公司 | A method of processing collophane direct flotation concentrate pulp and tailing ore pulp |
| CN110090737B (en) * | 2019-04-23 | 2021-03-16 | 云南磷化集团有限公司 | Method for treating collophanite direct flotation concentrate pulp and tailing pulp |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |