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CN1023081C - Composition of fluorite flotation regulator - Google Patents

Composition of fluorite flotation regulator Download PDF

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Publication number
CN1023081C
CN1023081C CN 91112718 CN91112718A CN1023081C CN 1023081 C CN1023081 C CN 1023081C CN 91112718 CN91112718 CN 91112718 CN 91112718 A CN91112718 A CN 91112718A CN 1023081 C CN1023081 C CN 1023081C
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acid
composition
salt
waterglass
fluorite
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Expired - Fee Related
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CN 91112718
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CN1063058A (en
Inventor
周维志
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Guangzhou Research Institute of Non Ferrous Metals
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Guangzhou Research Institute of Non Ferrous Metals
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Abstract

The present invention is a composition for use as a fluorite flotation modifier which is an improvement over the fluorite flotation modifier described in the patent' 87105202 granted. In the prior art, fluorite flotation adopts acid, alkali and synergist as a regulator. The invention uses the composition of water glass, acid and one or two soluble salts of the acid as the regulator, and forms the composition series, namely any acid and corresponding salt in sulfuric acid, hydrochloric acid, oxalic acid and acetic acid, the combination proportion range is: water glass, acid and salt = 1-2: 1-5: 0.5-1. The invention has strong adaptability, good stability, high concentrate quality, high recovery rate and low cost.

Description

Floating selection process for fluorite and its modifier compositions
The present invention relates to a kind of composition as fluorite adjustment agent, it is the improvement to used adjustment agent in the fluorite method of putting down in writing in No. 87105202 granted patent documents.
Method according to No. 87105202 patent applications, the adjustment agent of fluorite is that acid adds alkali and adds synergist, effect is than the obvious improvement of prior art, but because of synergist (carboxymethyl cellulose or calgon or prodan) price expensive, solubility is low, the amount of allocating into is few, and effect is still very good inadequately, is of limited application.Take a broad view of domestic and international fluorite present situation, the improvement of adjusting agent in the traditional handicraft is had acid system and alkaline system, the former adds waterglass for acid, and is stronger to the inhibition of siliceous minerals such as quartz, but poor stability, the flotation froth breaking seldom adopts in the production; The latter for waterglass add slaine (as US2893915, US3207304, SU1128984, SU671855 SU1002014), strengthens the inhibition to calcite, but turbidity sediment and losing efficacy easily.From prior art, can find out, the someone did not expect adjusting adding acid in the agent at alkaline system, or in acid system, add salt and improve, main cause is " acidic water glass " easily agglutination and make and adjust agent and lost efficacy, those skilled in the art attentively work hard in alkaline system.Exhausted expect in alkaline system, adding acid less or in the acid system with salt.
The purpose of this invention is to provide a kind of medicament source easily, the adjustment agent composition of make up a prescription convenience, solubility height, stable transparent, said composition is used in the fluorite technology can suppress associated minerals such as barite, calcite, quartz, mica effectively, fluorite is fully swum, thereby improve the selectivity and the rate of recovery of fluorite.
Purpose of the present invention realizes by the following method: with waterglass add acid and one or both soluble-salts of forming with this acid (as being two kinds of salt, then the ratio of these two kinds of salt is 0.5: 0.1~1.0), its combination is than being: waterglass: acid: salt=1~2: 1~5: 0.5~1(weight ratio, down together), combination liquid pH≤3, be the aqueous solution of stable transparent, its concentration is 1~20%(percentage by weight).
Purpose of the present invention can also realize by the following method:
1. add oxalic acid (H with waterglass 2C 2O 4), salt uses the solubility oxalates (as Na 2C 2O 4), it makes up than being: waterglass: oxalic acid: solubility oxalates=2: 3: 1.Use oxalic acid and oxalates to separate better effects if when flotation contains the more fluorite ore deposit of pyroxene, the fluorite rate of recovery is higher.
2. add acetic acid (CH with waterglass 3COOH) add solubility acetate (as CH 3COONa, CH 3COOK etc.) adjust the agent composition, it makes up than being: waterglass: acetic acid: solubility acetate=2: 5: 1.The composition that uses this type of acid and salt thereof to form more is adapted to fluorite to be separated with quartz.
3. add nitric acid (HNO with waterglass 3) and solubility nitrate (NaNO 3, KNO 3Deng), it makes up than being: waterglass: nitric acid: solubility nitrate=1: 1: 0.5.This based composition is more effective to the fluorite of fine-grained disseminated grain.
4. add hydrochloric acid (HCl) with waterglass and soluble-salt hydrochlorate (as NaCl, KCl etc.) adjusts the agent composition, it makes up than being: waterglass: hydrochloric acid: soluble-salt hydrochlorate=1: 1: 0.5, it more is applicable to separates fluorite and barite.
5. add sulfuric acid (H with waterglass 2SO 4) and soluble sulphate (as Na 2SO 4, FeSO 4, ZnSO 4, (NH 4) 2SO 4, Al 2(SO 4) 3) being mixed into composition, it makes up than being: waterglass: sulfuric acid: soluble sulphate=1: 1: 0.5, this based composition is more effective to separating fluorite and calcite.
6. add sulfuric acid with waterglass and add two kinds of soluble sulphates [as Na 2SO 4Add (NH 4) 2SO 4] make composition, it makes up than being: waterglass: sulfuric acid: two kinds of soluble sulphates=1: 1: 0.5, wherein the ratio of two kinds of salt is: 0.5: 0.1~1.0.
Above-mentioned hydrochloric acid, nitric acid, sulfuric acid etc. can substitute mutually, also can substitute mutually with the corresponding salt of this acid.
Concrete grammar of the present invention is: take sample ore, with grinde ore to fluorite monomer dissociation rate greater than 95%, being diluted with water to concentration is 25~30%(solid) ore pulp, available any composition of the present invention adjusts agent, with oleic acid (or fatty acid soaps) as the collecting foaming agent of holding concurrently, under near neutral (PH=6.5~7.0) medium and normal temperature (20~30 ℃) condition, carry out flotation, roughly select foam and promptly get fluorite concentrate selected 5~7 times, the consumption of composition is according to ore character and grade and decide, generally roughly select 500~1500 gram/tons, selected 500~800 gram/tons, flotation flowsheet adopts " set composite ".So obtain concentrate grade and can reach 98~99%CaF 2, the rate of recovery reaches 85~90%.
The invention will be further described with embodiment below:
Embodiment 1: adopt fluorite-pyroxene ore deposit, contain 45%CaF 2, be milled to less than 0.074mm to the ore deposit, account for 88%, be diluted to pulp density 25%(solid), add composition (waterglass: oxalic acid: sodium oxalate=2: 3: 1) adjust agent, roughly select consumption 1200 gram/tons, stirred 3 minutes; Add oleic acid 360 gram/tons, stirred 3 minutes, flotation is 6 minutes under normal temperature (20~22 ℃) condition, and foam is after primary cleaning, and chats 1 merges to enter with the interior ore pulp of initial separatory cell to be scanned, and selects foam to return again and roughly selects or handle separately output time concentrate (loop 1); Selected composition 400 gram/tons that add for the second time, chats 2 returns in advance into roughly selecting, for the third time selected not dosing, the 4th the selected composition 200 gram/tons that add again, third and fourth, five, six selected chats return last operation (loop II) successively, the process that all sorts all adopts common flotation device, pH values of pulp=6.5~7.0, the final fluorite concentrate rate of recovery 85.3%, grade 98.6%CaF 2(primes).
Example 2. usefulness somewhere fluorite-quartz mines contain " sludge " up to 20%, the present invention are opposed than test experiment I intermixture (H with No. 87105202 patents 2SO 4: Na 2SiO 3: CMC=1: 1: 0.1) adjust agent, consumption restrains/rams the loose soil with a stone-roller after sowing for roughly selecting 1000, and selected 500 gram/tons, grade is given the ore deposit by 67%() bring up to 98.5%CaF 2(concentrate), the fluorite rate of recovery 83%; (waterglass: acetic acid: sodium acetate=2: 5: 1), method is with example one, and consumption 800 gram/tons (roughly selecting) and 400 gram/tons (selected) obtain concentrate grade 99%CaF with composition for the experiment II 2(select quality), the rate of recovery 88%.
Example 3. methods are with example one.Fluorite ore deposit, somewhere grade is low (to contain 38.4%CaF 2), disseminated grain size carefully (is milled to 90%-0.074mm, fluorite monomer rate is 93%), with composition (waterglass: nitric acid: sodium nitrate=1: 1: 0.5) adjust agent, consumption 1500 gram/tons (roughly selecting) and 800 gram/tons (selected), obtain fluorite concentrate grade 98.2%(primes), the rate of recovery 80%.Use KNO 3Replace NaNO 3Also get analog result.
Example 4. methods are with example one.Somewhere fluorite-calcite ore contains 65%CaF 2, 18.5%CaCO 3, conventional dose can not make fluorite separate with calcite, and (waterglass: sulfuric acid: sodium sulphate=1: 1: 0.5) adjust agent, consumption 1400 gram/tons (roughly selecting) and 600 gram/tons (selected) obtain fluorite concentrate grade 98.8%CaF with composition 2(select quality), the rate of recovery 90.5%.
Example 5. somewhere fluorite-barite deposits contain 60%CaF 2, 21%BaSO 4Adopt prior art can only obtain fluorite-barite bulk concentrate (defective), with composition (waterglass: hydrochloric acid: sodium chloride=1: 1: 0.5) consumption 900 gram/tons (roughly selecting) and 300 gram/tons (selected), method is with example one, fluorite is accurately separated, fluorite concentrate grade 98.5%CaF with barite 2(primes), the rate of recovery 89.4%; Obtain the barite concentrate of high-quality simultaneously, (proportion>4.2), its rate of recovery 96%.
The white tungsten mine tailing in example 6. somewheres (contains 20.5%CaF 2), handle because of the floatation process that does not have success, be forced to store up for a long time.(waterglass: sulfuric acid: sodium sulphate=1: 1: 0.5) adjust agent, method is with example one, and consumption 1000 gram/tons (roughly selecting) and 300 gram/tons (selected) obtain unprecedented good index, concentrate grade 98.2%CaF with composition 2(primes), the rate of recovery 88%.
Example 7. somewhere Pb-Zn tailings (contain 25.6%CaF 2), with conventional beneficiation method flotation, concentrate sulfur-bearing severe overweight, (waterglass: sulfuric acid: ferrous sulfate=1: 1: 0.5), method is with example one, consumption 1600 gram/tons (selected) and 800 gram/tons (selected), fluorite concentrate grade 98.6%CaF with composition 2(primes), the rate of recovery 81.3%.
Example 8. somewhere fluorite-quartz-MICAs contain 70%CaF 2, (waterglass: sulfuric acid: zinc sulfate=1: 1: 0.5), method is with example one, consumption 800 gram/tons (roughly selecting) and 400 gram/tons (selected), fluorite concentrate grade 99.25%CaF with composition 2(select quality), the rate of recovery reaches 91.95%.
Example 9. somewheres contain the fluorite ore deposit of tourmaline, grade 61.5%CaF 2, use the prior art flotation, form " off standard " because of being mingled with tourmaline in the fluorite concentrate; (waterglass: sulfuric acid: aluminum sulfate=1: 1: 0.5) method is with example one, and consumption 1000 gram/tons (selected) and 400 gram/tons (selected) obtain fluorite concentrate grade 98.3%CaF with composition 2(primes), the rate of recovery 90.4%.
Example 10. somewheres contain the fluorite ore deposit of garnet, pyroxene, grade 50.5%CaF 2, use the prior art test of many times, all do not obtain qualified fluorite concentrate, (waterglass: sulfuric acid: sodium sulphate: ammonium sulfate=1: 1: 0.25: 0.25), method obtains fluorite concentrate grade 98.8%CaF with example one to adopt composition 2, (primes), the rate of recovery 86.8%.
Above embodiment as can be seen, the present invention compared with prior art has a lot of advantages, promptly waterglass adds acid and forms fluorite with soluble-salt that this acid is formed and adjusts agent composition series, its adaptability is strong, good stability, concentrate high-quality, rate of recovery height, cost is low, remarkable in economical benefits.
1. said composition can not only make fluorite and quartzy FLOTATION SEPARATION, and fluorite and barite, fluorite and calcite, fluorite and mica etc. are separated, and this is that prior art institute is inaccessible.
2. the easy gel of acidic water glass is rotten in the prior art, the easy flocculation sediment of salt waterglass and losing efficacy, and present composition stable performance, the solubility height, preparation is convenient.
3. the fluorite concentrate grade that obtains usually of prior art is 97%CaF 2, the present invention can obtain grade and reach 98~99%CaF 2Fluorite concentrate.
4. the medicament of prior art use is more expensive, and flotation recovery rate is low, and present composition cost is lower, fluorite rate of recovery height.
Those of ordinary skills can do some improvement to the present invention fully, for example available some other acid and salt thereof, as sulfurous acid, phosphoric acid, etching acid and corresponding salt thereof, or monoxone, benzoic acid, phthalic acid and corresponding salt thereof or the like, obviously, these improve and all do not deviate from and surpass category of the present invention.

Claims (7)

1, a kind of composition as fluorite adjustment agent comprises waterglass (Na 2SiO 3) one or both soluble-salts of adding acid and forming with this acid, as be two kinds of salt, then the ratio of these two kinds of salt is 0.5: 0.1~1.0, its combination is than being: waterglass: acid: salt=1~2: 1~5: 0.5~1 (weight ratio, down together), combination liquid pH≤3 are the aqueous solution of stable transparent, and its concentration is 1~20% (percentage by weight).
2,, it is characterized in that acid is oxalic acid (H according to the composition of claim 1 2C 2O 4), salt is the solubility oxalates, it makes up than being: waterglass: oxalic acid: solubility oxalates=2: 3: 1.
3,, it is characterized in that acid is acetic acid (CH according to the composition of claim 1 3COOH), salt is solubility acetate, and it makes up than being: waterglass: acetic acid: solubility acetate=2: 5: 1.
4,, it is characterized in that acid is nitric acid (HNO according to the composition of claim 1 3), salt is solubility nitrate, it makes up than being: waterglass: acetic acid: solubility nitrate=1: 1: 0.5.
5, according to the composition of claim 1, it is characterized in that acid is hydrochloric acid (HCl), salt is the soluble-salt hydrochlorate, it makes up than being: waterglass: acetic acid: soluble-salt hydrochlorate=1: 1: 0.5.
6,, it is characterized in that acid is sulfuric acid (H according to the composition of claim 1 2SO 4), salt is soluble sulphate, it makes up than being: waterglass: sulfuric acid: solubility nitrate=1: 1: 0.5.
7,, it is characterized in that acid is sulfuric acid (H according to the composition of claim 1 2SO 4), salt is two kinds of soluble sulphates, it makes up than being: waterglass: sulfuric acid: two kinds of soluble sulphates=1: 1: 0.5, wherein the ratio of two kinds of salt is: 0.5: 0.1~1.0.
CN 91112718 1991-12-31 1991-12-31 Composition of fluorite flotation regulator Expired - Fee Related CN1023081C (en)

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Application Number Priority Date Filing Date Title
CN 91112718 CN1023081C (en) 1991-12-31 1991-12-31 Composition of fluorite flotation regulator

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Application Number Priority Date Filing Date Title
CN 91112718 CN1023081C (en) 1991-12-31 1991-12-31 Composition of fluorite flotation regulator

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CN1023081C true CN1023081C (en) 1993-12-15

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Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1944088A1 (en) * 2007-01-12 2008-07-16 Omya Development Ag Process of purification of minerals based on calcium carbonate by flotation in the presence of quaternary imidazollum methosulfate
CN101507948B (en) * 2009-04-03 2012-04-25 陕西新星浮选剂有限责任公司 Collecting agent for floatation of fluorite under low-temperature condition
CN101712014B (en) * 2009-12-08 2012-03-21 湖南省铸万有实业有限公司 Multicategory-impurity single fluorite ore dressing method
CN102151615B (en) * 2010-12-21 2013-01-16 北京矿冶研究总院 Fluorite flotation method in a high salinity alkaline water environment
CN102489408B (en) * 2011-12-19 2013-04-10 湖南有色金属研究院 Flotation method for separating copper form mica
CN102658242B (en) * 2012-04-25 2013-06-19 白银有色集团股份有限公司 Mineral separation process of complex fluorite difficult to separate
CN102896047B (en) * 2012-10-08 2014-12-24 湖南有色金属研究院 Method for beneficiating high-peat copper sulphide ore
CN104694736B (en) * 2015-03-23 2017-01-11 东北大学 Calcium roasting floatation separation method for bastnaesite
CN105149100B (en) * 2015-08-07 2018-01-19 广州有色金属研究院 A kind of method that barite is reclaimed from Pb-Zn tailings
CN105689148B (en) * 2016-04-22 2018-05-08 云南罗平锌电股份有限公司 It is a kind of to suppress calcium, the method for magnesium in ore dressing process
CN106179763A (en) * 2016-06-27 2016-12-07 洛阳丰瑞氟业有限公司 Fluorite flotation calcium carbonate inhibitor and preparation method thereof
CN106492994B (en) * 2016-11-02 2018-11-20 广西大学 A kind of preparation method of olivine mineral inhibitor
CN115090409B (en) * 2022-06-16 2024-08-13 中化地质矿山总局地质研究院 Ore dressing method for fluorite ore

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