CN103831170B - Floatation method for silica-calcium collophane with difficult separation - Google Patents
Floatation method for silica-calcium collophane with difficult separation Download PDFInfo
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- CN103831170B CN103831170B CN201410094647.5A CN201410094647A CN103831170B CN 103831170 B CN103831170 B CN 103831170B CN 201410094647 A CN201410094647 A CN 201410094647A CN 103831170 B CN103831170 B CN 103831170B
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Abstract
The invention discloses a floatation method for a silica-calcium collophane with difficult separation. According to the detailed technology, the floatation method includes the steps that (1) breaking and grinding are performed on the silica-calcium collophane; (2), a sulfate mineral negative ion collecting agent, a phosphate mineral negative ion collecting agent and a carbonate mineral negative ion collecting agent are respectively added into ore pulp for mixing and mineralizing, and air inflation is performed for reverse floatation; (3), magnesium removal phosphate ore concentrate is graded; (4), the ore pulp concentration of a coarsely graded phosphate ore concentrate is controlled, then sodium carbonate mineral positive ions and silicate mineral positive ions are respectively added for pulp mixing and mineralizing, and air inflation is performed for reverse floatation; (5), a finely graded phosphate ore concentrate and a desilication phosphate ore concentrate are mixed, and carbonate impurities and silicate impurities are mixed. The problems that because the carbonate impurities are removed only through single reverse floatation, the phosphate ore concentrate is not high in content and high in silicate impurity content, the requirement for the phosphate ore concentrate used for wet-process phosphoric acid can not be met, and then in the process that the silicate impurities are removed through reverse floatation, floatation froth is sticky, not prone to breaking and poor in ore pulp flowability due to the existence of a great deal of slurry are solved, and the floatation method is adaptive to the silica-calcium collophane and efficient in impurity removal.
Description
Technical field
The present invention relates to a kind of silicon calcium collophanite is after reverse flotation work removes carbonate impurities, the phosphorus concentrate of acquisition
By classification, coarse fraction product is carried out again the floatation process that reverse flotation removes silicate.
Background technology
With the day by day dilution of rock phosphate in powder and steeply rising of cost of winning, and phosphorus concentrate price relatively low so that floating
Hank and be originally constantly in relatively low cost space.With the reduction of collophane mill head quality, impurity content raises, only passes through
Removing carbonate impurities can not meet phosphoric acid by wet process ore deposit and require, anxious therefore need to research and develop a kind of strong adaptability, flotation effect
The floatation process of really good, with low cost, easy operation control silico-calcium matter refractory cellophane.
Content of the invention
The purpose of the present invention is to overcome above-mentioned prior art not enough, provides the flotation work that a kind of difficulty selects silicon calcium collophanite
Skill.
Technical scheme employed in the present invention is: hardly possible selects the method for floating of silicon calcium collophanite to contain following steps:
(1) difficulty selects silicon calcium collophanite to lead to sieve rate >=80% through broken, ore grinding to 0.074mm granularity, and pulp density is 0 ~
50%;
(2) ore pulp is added respectively sulphuric acid, phosphoric acid and carbonate mineral anionic collector to size mixing mineralising, inflation carries out anti-
Flotation operation, froth pulp position is carbonate impurities, and underflow product is de-magging phosphorus concentrate;
(3) de-magging phosphorus concentrate is classified to 0.038mm ,+0.038mm grade product is coarse fraction phosphorus concentrate, -0.038mm
Grade product is fine fraction phosphorus concentrate;
(4)+0.038mm coarse fraction phosphorus concentrate being controlled ore pulp is 0 ~ 50%, adds sodium carbonate and silicate mineral sun respectively
Ion collecting agent is carried out sizing mixing mineralising, and inflation carries out reverse flotation work, and froth pulp is silicate impurity, and underflow product is desiliconization
Phosphorus concentrate;
(5) -0.038mm fine fraction phosphorus concentrate and desiliconization phosphorus concentrate are mixed into final phosphorus concentrate, carbonate impurities and silicon
Hydrochlorate is hybrid to be combined into true tailings.
The present invention solves only to pass through the removing of single reverse flotation that carbonate impurities phosphate concentrate after content is high, silicate impurity contains
Amount higher and do not reach phosphoric acid by wet process ore deposit require, then by reverse flotation removing silicate impurity during due to a large amount of sludges
Be present such that flotation froth is tacky, be difficult froth breaking, fluidity of slurry difference the features such as, be a kind of difficulty to be selected silicon calcium collophanite high
Effect removing impurities, the method for floating suitably promoted the use of.
The invention has the beneficial effects as follows:
1. efficiently solve being present such that foam is tacky, flowing due to sludge when reverse flotation removes silicate mineral
The persistent ailments such as property difference.
Coarse fraction product after flotation classification when 2. removing silicate mineral, reagent consumption is low, flotation low cost.
Coarse fraction product after flotation classification when 3. removing silicate mineral, flotation space is little, easily realizes industrialization
Produce, remarkable in economical benefits.
Brief description
Fig. 1 is the flotation process figure selecting silicon calcium collophanite according to a kind of difficulty proposed by the present invention.
Specific embodiment
With reference to embodiment, the present invention is further illustrated, but is not limited to embodiment.In an embodiment, except there being spy
Do not mentionlet alone bright exception, all percentage compositions are mass percent.
A kind of difficulty selects the floatation process of silicon calcium collophanite.
(1) silico-calcium matter refractory cellophane leads to sieve rate >=80% through broken, ore grinding to 0.074mm granularity, and pulp density is 0 ~
50%;
(2) ore pulp is added respectively sulphuric acid, phosphoric acid and carbonate mineral anionic collector to size mixing mineralising, inflation carries out anti-
Flotation operation, froth pulp position is carbonate impurities, and underflow product is de-magging phosphorus concentrate;
(3) de-magging phosphorus concentrate is classified to 0.038mm ,+0.038mm grade product is coarse fraction phosphorus concentrate, -0.038mm
Grade product is fine fraction phosphorus concentrate;
(4)+0.038mm coarse fraction phosphorus concentrate being controlled ore pulp is 0 ~ 50%, adds sodium carbonate and silicate mineral sun respectively
Ion collecting agent is carried out sizing mixing mineralising, and inflation carries out reverse flotation work, and froth pulp position is silicate impurity, and underflow product is de-
Silicon phosphorus concentrate;
(5) -0.038mm fine fraction phosphorus concentrate and desiliconization phosphorus concentrate are mixed into final phosphorus concentrate, carbonate is miscellaneous and silicic acid
Salt impurity is mixed into true tailings.
Embodiment 1
Rock phosphate in powder raw ore p205Content 22.35%, mgo content 3.56%, sio2Content 22.31%, through broken, ore grinding extremely
0.074mm leads to sieve rate 85%, pulp density 20%, plus sulphuric acid, phosphoric acid and carbonate mineral anionic collector and sizes mixing and fills after mineralising
Air supporting is selected, and for carbonate mineral impurity as mine tailing, underflow product is de-magging phosphorus concentrate to froth pulp;De-magging phosphorus concentrate is used
Cyclone carries out 0.038mm classification, and -0.038mm grade product is fine fraction de-magging phosphorus concentrate, and+0.038mm grade product is thick
Grade de-magging phosphorus concentrate;Coarse fraction de-magging phosphorus concentrate is sized mixing near concentration for 25%, adds sodium carbonate and desiliconization cation collecting
Agent carries out mineralising, and for silicate mineral impurity as mine tailing, underflow product is desiliconization phosphorus concentrate to the froth pulp after air flotation;
De-magging classification fine fraction product is mixed into total concentrate with desiliconization phosphorus concentrate, its p205Content 28.86%, mgo content 0.80%,
sio2Content 19.65%, de-magging carbonate impurities and desiliconization silicate impurity are mixed as total mine tailing, its p205Content 8.92%, mgo contain
Amount 10.21%, sio2Content 23.31%.
Embodiment 2
Rock phosphate in powder raw ore p205Content 20.52%, mgo content 5.74%, sio2Content 18.50%, through broken, ore grinding extremely
0.074mm leads to sieve rate 88%, pulp density 30%, plus sulphuric acid, phosphoric acid and carbonate mineral anionic collector and sizes mixing and fills after mineralising
Air supporting is selected, and for carbonate mineral impurity as mine tailing, underflow product is de-magging phosphorus concentrate to froth pulp;De-magging phosphorus concentrate is used
Cyclone carries out 0.038mm classification, and -0.038mm grade product is fine fraction de-magging phosphorus concentrate, and+0.038mm grade product is thick
Grade de-magging phosphorus concentrate;Coarse fraction de-magging phosphorus concentrate is sized mixing near concentration for 30%, adds sodium carbonate and desiliconization cation collecting
Agent carries out mineralising, and for silicate mineral impurity as mine tailing, underflow product is desiliconization phosphorus concentrate to the froth pulp after air flotation;
De-magging classification fine fraction product is mixed into total concentrate with desiliconization phosphorus concentrate, its p205Content 28.66%, mgo content 0.81%,
sio2Content 19.56%, de-magging carbonate impurities and desiliconization silicate impurity are mixed as total mine tailing, its p205Content 9.72%, mgo contain
Amount 12.29%, sio2Content 17.09%.
Embodiment 3
Rock phosphate in powder raw ore p205Content 18.68%, mgo content 6.82%, sio2Content 20.63%, through broken, ore grinding extremely
0.074mm leads to sieve rate 92%, pulp density 40%, plus sulphuric acid, phosphoric acid and carbonate mineral anionic collector and sizes mixing and fills after mineralising
Air supporting is selected, and for carbonate mineral impurity as mine tailing, underflow product is de-magging phosphorus concentrate to froth pulp;De-magging phosphorus concentrate is used
Cyclone carries out 0.038mm classification, and -0.038mm grade product is fine fraction de-magging phosphorus concentrate, and+0.038mm grade product is thick
Grade de-magging phosphorus concentrate;Coarse fraction de-magging phosphorus concentrate is sized mixing near concentration for 35%, adds sodium carbonate and desiliconization cation collecting
Agent carries out mineralising, and for silicate mineral impurity as mine tailing, underflow product is desiliconization phosphorus concentrate to the froth pulp after air flotation;
De-magging classification fine fraction product is mixed into total concentrate with desiliconization phosphorus concentrate, its p205Content 28.64%, mgo content 0.86%,
sio2Content 18.35%, de-magging carbonate impurities and desiliconization silicate impurity are mixed as total mine tailing, its p205Content 8.79%, mgo contain
Amount 13.76%, sio2Content 21.70%.
The present invention solves only to pass through the removing of single reverse flotation carbonate impurities phosphate concentrate after content is not high and silicate impurity
Content is relatively up to required with ore deposit less than phosphoric acid by wet process, then by during reverse flotation removing silicate impurity due to a large amount of sludges
Be present such that flotation froth is tacky, be difficult froth breaking, fluidity of slurry difference the features such as, be a kind of difficulty to be selected silicon calcium collophanite high
Effect removing impurities, the method for floating suitably promoted the use of.
Claims (1)
1. a kind of difficulty selects the method for floating of silicon calcium collophanite it is characterised in that containing following steps:
(1) rock phosphate in powder raw ore p205Content 22.35%, mgo content 3.56%, sio2Content 22.31%, through broken, ore grinding extremely
0.074mm leads to sieve rate 85%, pulp density 20%；
(2) plus sulphuric acid, phosphoric acid and carbonate mineral anionic collector are sized mixing air flotation after mineralising, froth pulp is carbonate
As mine tailing, underflow product is de-magging phosphorus concentrate to dirt；
(3) de-magging phosphorus concentrate is carried out 0.038mm classification using cyclone, -0.038mm grade product is fine fraction de-magging phosphorus essence
Ore deposit ,+0.038mm grade product is coarse fraction de-magging phosphorus concentrate；
(4) coarse fraction de-magging phosphorus concentrate is sized mixing near concentration for 25%, add sodium carbonate and desiliconization cation-collecting agent carries out ore deposit
Change, for silicate mineral impurity as mine tailing, underflow product is desiliconization phosphorus concentrate to the froth pulp after air flotation；
(5) de-magging classification fine fraction product is mixed into total concentrate with desiliconization phosphorus concentrate, its p205Content 28.86%, mgo content
0.80%、sio2Content 19.65%, de-magging carbonate impurities and desiliconization silicate impurity are mixed as total mine tailing, its p205Content 8.92%,
Mgo content 10.21%, sio2Content 23.31%.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707734B (en) * | 2014-12-17 | 2017-02-22 | 云南磷化集团有限公司 | Process for reducing collophanite flotation tailing grade |
| CN104801418B (en) * | 2015-05-11 | 2017-11-14 | 中蓝连海设计研究院 | A kind of coarse grain reverse flotation de-magging method for phosphorus ore |
| CN105268560A (en) * | 2015-11-13 | 2016-01-27 | 中蓝连海设计研究院 | Method for simultaneous anti-flotation of carbonate and silicate in phosphorus ore |
| CN109158205B (en) * | 2018-08-30 | 2021-03-23 | 云南磷化集团有限公司 | Production method for improving high-quality phosphate concentrate by combining physical classification and chemical treatment |
| CN111135947A (en) * | 2020-01-03 | 2020-05-12 | 云南磷化集团有限公司 | Collophanite flotation tailing treatment process |
| CN112517231B (en) * | 2020-11-18 | 2022-07-12 | 云南磷化集团有限公司 | Flotation method for low-grade carbonate collophanite |
| CN113600344B (en) * | 2021-07-21 | 2022-12-02 | 宜都兴发化工有限公司 | Ore dressing process for removing sesquioxide from collophanite through intermediate grading reprocessing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1806931A (en) * | 2006-01-27 | 2006-07-26 | 湖北宜化大江复合肥有限公司 | Mineral dressing method of mid-low grade collophane |
| CN102009001A (en) * | 2010-10-18 | 2011-04-13 | 中蓝连海设计研究院 | Selective flocculation reverse flotation desilication process of collophanite containing primary slime |
| CN102441498A (en) * | 2011-10-31 | 2012-05-09 | 中蓝连海设计研究院 | Phosphorite double-reverse flotation process |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1806931A (en) * | 2006-01-27 | 2006-07-26 | 湖北宜化大江复合肥有限公司 | Mineral dressing method of mid-low grade collophane |
| CN102009001A (en) * | 2010-10-18 | 2011-04-13 | 中蓝连海设计研究院 | Selective flocculation reverse flotation desilication process of collophanite containing primary slime |
| CN102441498A (en) * | 2011-10-31 | 2012-05-09 | 中蓝连海设计研究院 | Phosphorite double-reverse flotation process |
Non-Patent Citations (1)
| Title |
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| 《胶磷矿双反浮选工艺及泡沫行为调控研究》;曾小波;《中国优秀硕士学位论文全文数据库（电子期刊）》;20070415;第36-40页 * |
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