CN103831170A - 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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- CN103831170A CN103831170A CN201410094647.5A CN201410094647A CN103831170A CN 103831170 A CN103831170 A CN 103831170A CN 201410094647 A CN201410094647 A CN 201410094647A CN 103831170 A CN103831170 A CN 103831170A
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- phosphorus concentrate
- silicate
- carbonate
- floatation
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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 silico-calcium matter collophane and remove after carbonate impurity by reverse flotation work, the phosphorus concentrate of acquisition is by classification, coarse fraction product carried out to reverse flotation again and removes the floatation process of silicate.
Background technology
Along with the day by day dilution of rock phosphate in powder and the sharply rising of cost of winning, and phosphorus concentrate price is relatively low, makes flotation cost always in lower cost space.Along with the reduction of the selected raw ore quality of collophane, impurity content raises, urgency only can not meet phosphoric acid by wet process ore deposit requirement by removing carbonate impurity, therefore need be researched and developed a kind of strong adaptability, flotation effect silico-calcium good, with low cost, easy operation control is blamed the floatation process that selects collophane.
Summary of the invention
The object of the invention is to overcome above-mentioned prior art deficiency, provide a kind of difficulty to select the floatation process of silico-calcium matter collophane.
The technical scheme adopting in the present invention is: difficulty selects the method for floating of silico-calcium matter collophane to contain following steps:
(1) difficulty selects silico-calcium matter collophane 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 to sulfuric acid, phosphoric acid and the carbonate mineral anion collecting agent mineralising of sizing mixing, reverse flotation work is carried out in inflation, and froth pulp position is carbonate impurity, and underflow product is de-magging phosphorus concentrate;
(3) by de-magging phosphorus concentrate to 0.038mm classification ,+0.038mm grade product is coarse fraction phosphorus concentrate ,-0.038mm grade product is fine fraction phosphorus concentrate;
(4) general+0.038mm coarse fraction phosphorus concentrate control ore pulp is 0 ~ 50%, adds respectively sodium carbonate and the silicate mineral cation-collecting agent mineralising of sizing mixing, and reverse flotation work is carried out in inflation, and froth pulp is silicate impurity, and underflow product is desiliconization phosphorus concentrate;
(5) general-0.038mm fine fraction phosphorus concentrate and desiliconization phosphorus concentrate are mixed into final phosphorus concentrate, and carbonate impurity and silicate hybridization are combined into true tailings.
The present invention only solve by single reverse flotation remove after carbonate impurity that phosphorus concentrate content is not high, silicate impurity content do not reach phosphoric acid by wet process ore deposit requirement compared with high, being removed in silicate impurity process because the existence of a large amount of sludges makes flotation froth and be clamminess, be difficult for the features such as froth breaking, fluidity of slurry be poor by reverse flotation again, is a kind of difficulty to be selected to the efficient removing impurities of silico-calcium matter collophane, the suitable method for floating of promoting the use of.
The invention has the beneficial effects as follows:
1. efficiently solve the existence due to sludge in the time that reverse flotation removes silicate mineral and make the persistent ailments such as foam is clamminess, poor fluidity.
2. while removing silicate mineral a flotation coarse fraction product after classification, reagent consumption is low, flotation cost is low.
3. while removing silicate mineral a flotation coarse fraction product after classification, flotation space is little, easily realizes suitability for industrialized production, remarkable in economical benefits.
Accompanying drawing explanation
Fig. 1 is the flotation process figure that a kind of difficulty of the proposition according to the present invention is selected silico-calcium matter collophane.
the specific embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but be not limited to embodiment.In an embodiment, apart from special instruction exception, all percentage compositions are mass percent.
A kind of difficulty is selected the floatation process of silico-calcium matter collophane.
(1) silico-calcium is blamed and is selected collophane 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 to sulfuric acid, phosphoric acid and the carbonate mineral anion collecting agent mineralising of sizing mixing, reverse flotation work is carried out in inflation, and froth pulp position is carbonate impurity, and underflow product is de-magging phosphorus concentrate;
(3) by de-magging phosphorus concentrate to 0.038mm classification ,+0.038mm grade product is coarse fraction phosphorus concentrate ,-0.038mm grade product is fine fraction phosphorus concentrate;
(4) general+0.038mm coarse fraction phosphorus concentrate control ore pulp is 0 ~ 50%, adds respectively sodium carbonate and the silicate mineral cation-collecting agent mineralising of sizing mixing, and reverse flotation work is carried out in inflation, and froth pulp position is silicate impurity, and underflow product is desiliconization phosphorus concentrate;
(5) general-0.038mm fine fraction phosphorus concentrate and desiliconization phosphorus concentrate are mixed into final phosphorus concentrate, and carbonate is assorted is mixed into true tailings with silicate impurity.
embodiment 1
Rock phosphate in powder raw ore P
20
5content 22.35%, MgO content 3.56%, SiO
2content 22.31%; through broken, ore grinding, to the logical sieve rate 85% of 0.074mm, pulp density 20%, adds sulfuric acid, phosphoric acid and the carbonate mineral anion collecting agent air flotation after mineralising of sizing mixing; froth pulp be carbonate mineral impurity as mine tailing, underflow product is de-magging phosphorus concentrate; Use cyclone to carry out 0.038mm classification in de-magging phosphorus concentrate ,-0.038mm grade product is fine fraction de-magging phosphorus concentrate, and+0.038mm grade product is coarse fraction de-magging phosphorus concentrate; Be 25% by the coarse fraction de-magging phosphorus concentrate near concentration of sizing mixing, add sodium carbonate and desiliconization cation-collecting agent and carry out mineralising, the froth pulp after air flotation be silicate mineral impurity as mine tailing, underflow product is desiliconization phosphorus concentrate; De-magging classification fine fraction product and desiliconization phosphorus concentrate are mixed into total concentrate, its P
20
5content 28.86%, MgO content 0.80%, SiO
2content 19.65%, de-magging carbonate impurity and desilication silica hydrochlorate impurity mix as total mine tailing, its P
20
5content 8.92%, MgO content 10.21%, SiO
2content 23.31%.
embodiment 2
Rock phosphate in powder raw ore P
20
5content 20.52%, MgO content 5.74%, SiO
2content 18.50%; through broken, ore grinding, to the logical sieve rate 88% of 0.074mm, pulp density 30%, adds sulfuric acid, phosphoric acid and the carbonate mineral anion collecting agent air flotation after mineralising of sizing mixing; froth pulp be carbonate mineral impurity as mine tailing, underflow product is de-magging phosphorus concentrate; Use cyclone to carry out 0.038mm classification in de-magging phosphorus concentrate ,-0.038mm grade product is fine fraction de-magging phosphorus concentrate, and+0.038mm grade product is coarse fraction de-magging phosphorus concentrate; Be 30% by the coarse fraction de-magging phosphorus concentrate near concentration of sizing mixing, add sodium carbonate and desiliconization cation-collecting agent and carry out mineralising, the froth pulp after air flotation be silicate mineral impurity as mine tailing, underflow product is desiliconization phosphorus concentrate; De-magging classification fine fraction product and desiliconization phosphorus concentrate are mixed into total concentrate, its P
20
5content 28.66%, MgO content 0.81%, SiO
2content 19.56%, de-magging carbonate impurity and desilication silica hydrochlorate impurity mix as total mine tailing, its P
20
5content 9.72%, MgO content 12.29%, SiO
2content 17.09%.
embodiment 3
Rock phosphate in powder raw ore P
20
5content 18.68%, MgO content 6.82%, SiO
2content 20.63%; through broken, ore grinding, to the logical sieve rate 92% of 0.074mm, pulp density 40%, adds sulfuric acid, phosphoric acid and the carbonate mineral anion collecting agent air flotation after mineralising of sizing mixing; froth pulp be carbonate mineral impurity as mine tailing, underflow product is de-magging phosphorus concentrate; Use cyclone to carry out 0.038mm classification in de-magging phosphorus concentrate ,-0.038mm grade product is fine fraction de-magging phosphorus concentrate, and+0.038mm grade product is coarse fraction de-magging phosphorus concentrate; Be 35% by the coarse fraction de-magging phosphorus concentrate near concentration of sizing mixing, add sodium carbonate and desiliconization cation-collecting agent and carry out mineralising, the froth pulp after air flotation be silicate mineral impurity as mine tailing, underflow product is desiliconization phosphorus concentrate; De-magging classification fine fraction product and desiliconization phosphorus concentrate are mixed into total concentrate, its P
20
5content 28.64%, MgO content 0.86%, SiO
2content 18.35%, de-magging carbonate impurity and desilication silica hydrochlorate impurity mix as total mine tailing, its P
20
5content 8.79%, MgO content 13.76%, SiO
2content 21.70%.
The present invention only solves by single reverse flotation and removes after carbonate impurity the not high and silicate impurity content of phosphorus concentrate content up to use ore deposit requirement less than phosphoric acid by wet process, being removed in silicate impurity process because the existence of a large amount of sludges makes flotation froth and be clamminess, be difficult for the features such as froth breaking, fluidity of slurry be poor by reverse flotation again, is a kind of difficulty to be selected to the efficient removing impurities of silico-calcium matter collophane, the suitable method for floating of promoting the use of.
Claims (1)
1. difficulty is selected a method for floating for silico-calcium matter collophane, it is characterized in that containing following steps:
(1) difficulty selects silico-calcium matter collophane 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 to sulfuric acid, phosphoric acid and the carbonate mineral anion collecting agent mineralising of sizing mixing, reverse flotation work is carried out in inflation, and froth pulp position is carbonate impurity, and underflow product is de-magging phosphorus concentrate;
(3) by de-magging phosphorus concentrate to 0.038mm classification ,+0.038mm grade product is coarse fraction phosphorus concentrate ,-0.038mm grade product is fine fraction phosphorus concentrate;
(4) general+0.038mm coarse fraction phosphorus concentrate control ore pulp is 0 ~ 50%, adds respectively sodium carbonate and the silicate mineral cation-collecting agent mineralising of sizing mixing, and reverse flotation work is carried out in inflation, and froth pulp is silicate impurity, and underflow product is desiliconization phosphorus concentrate;
(5) general-0.038mm fine fraction phosphorus concentrate and desiliconization phosphorus concentrate are mixed into final phosphorus concentrate, and carbonate impurity and silicate hybridization are combined into true tailings.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707734A (en) * | 2014-12-17 | 2015-06-17 | 云南磷化集团有限公司 | Process for reducing collophanite flotation tailing grade |
| CN104801418A (en) * | 2015-05-11 | 2015-07-29 | 中蓝连海设计研究院 | Coarse grain reverse floatation magnesium removal 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 |
| CN109158205A (en) * | 2018-08-30 | 2019-01-08 | 云南磷化集团有限公司 | A kind of physical fractionation combines the production method of promotion high-quality phosphorus concentrate with 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 |
| CN112517231A (en) * | 2020-11-18 | 2021-03-19 | 云南磷化集团有限公司 | Flotation method for low-grade carbonate collophanite |
| CN113600344A (en) * | 2021-07-21 | 2021-11-05 | 宜都兴发化工有限公司 | Ore dressing process for removing sesquioxide from collophanite by intermediate grading and retreatment |
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| 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)
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| 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 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707734A (en) * | 2014-12-17 | 2015-06-17 | 云南磷化集团有限公司 | Process for reducing collophanite flotation tailing grade |
| 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 |
| CN104801418A (en) * | 2015-05-11 | 2015-07-29 | 中蓝连海设计研究院 | Coarse grain reverse floatation magnesium removal method for phosphorus ore |
| 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 |
| CN109158205A (en) * | 2018-08-30 | 2019-01-08 | 云南磷化集团有限公司 | A kind of physical fractionation combines the production method of promotion high-quality phosphorus concentrate with 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 |
| CN112517231A (en) * | 2020-11-18 | 2021-03-19 | 云南磷化集团有限公司 | Flotation method for low-grade carbonate collophanite |
| CN113600344A (en) * | 2021-07-21 | 2021-11-05 | 宜都兴发化工有限公司 | Ore dressing process for removing sesquioxide from collophanite by intermediate grading and retreatment |
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| CN103831170B (en) | 2017-01-25 |
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