• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A froth flotation process in which an amphoteric compound is used as a collector for oxide and salt type minerals. The amphoteric compound has the formula <IMAGE> I in which R is a hydrocarbon group having 4 to 18 carbon atoms; n is 0 or 1;; p is a number from 0 to 5; and R1 is a hydrocarbon group having 5 to 18 carbon atoms or the group <IMAGE> in which R, n and p have the above mentioned meaning; or a salt thereof.
    公开号:SU1433396A3
    申请号:SU853871848
    申请日:1985-04-03
    公开日:1988-10-23
    发明作者:Хеллстен Мартин；Клингберг Андерс；Альврюд Бертил
    申请人:Берол Кеми Ав (Фирма)；
    IPC主号:
    专利说明:


    CH
    This invention relates to a method of froth flotation, in which an amphoteric compound is used as a reservoir, which has excellent selectivity for minerals such as oxides and salts, such as phosphate, fluoride, copper, tungsten, niobium and cobalt-containing minerals,
    There is a method of froth flotation, in which an amphoteric compound having the general formula
    de R R- (o} wp-br - sn - nn - - with H Ioni
    hydrocarbon group having 7-24 carbon atoms, preferably 10-18 atoms
    carbon;
    oxyalkylene group having 2 to 4 carbon atoms; is selected from rpyniib consisting of hydrogen and hydrocarbon
    A r
    one
    „
    1-4 carbon atoms
    R
    q
    groups5 with Lerod;
    is selected from the group consisting of GOO and SOj, and is the number O or 1; 0-51 or 2.
    This collector exhibits good selectivity for phosphate minerals and enriches valuable materials with a high degree of excretion and high yield.
    The method of froth flotation of non-sulphide ores includes treating the ore with an alkaline modifier and an amphoteric collector of the formula.
    RI R4o1, - () p-CH5-CH-CHj-M CH SOOON n
    where R is a hydrocarbon group having 6 to 16 carbon atoms;
    O, 1;
    0-2 provided that p O p 0;
    a hydrocarbon group having 5 to 16 carbon atoms, a yl group of the formula R (0) f, - () p-CHn-CH-CH 5
    n Р
    R. HE
    where R n and P are the indicated values.
    The purpose of the invention is to increase the efficiency of the process:
    Compared with limestone, the proposed amphoteric compounds have better efficiency and selectivity as a collector of the flotation process for minerals such as oxides and salts such as phosphate, fluoride, copper, tungsten, niobium and cobalt containing minerals. Offered {e amphoteric compounds have the general formula
    R- (0) n - () p-CH4-CH-CH -N CH CH
    they
    where R. is a hydrocarbon rp STina having 6-16 carbon atoms; O, 1; 0-2;
    etc
    R,
    - hydrocarbon group, I have
    20
    25
    thirty
    35
    0

    45
    55
    carbon atoms, or
    sch 5-16 group R- (0) n - () p-CH-CH-CH 6 n
    where R, n are the indicated values, or salts of these compounds.
    Preferred are compounds in which the total number of carbon atoms in the hydrocarbon groups R and R is 12-20. The number of atoms of carbon in each,, hydrocarbon group of R and R is preferably 6-10. The compounds of the invention can be obtained from industrial compounds using known methods.
    The R group can be obtained from hydroxyl compounds, for example, saturated alcohols, by the Ziegler method or oxo-synthesis (butanol, isobutanol, secondary butanol, hexanol, secondary hexanol, iso-hexanol, 2-ethylhexanol, octanol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol and oleyl alcohol),
    In addition to aliphatic alcohols, can be used as a starting material. use cycloaliphatic alcohols (cyclohexanol and alkyl substituted chromo-alcohols) and aromatic hydroxyl compounds (synthetically prepared mono- and dialkyl-substituted phenols: octylphenol, nonylphenol, dodecylphenol, dibutylphenol).
    When the group R is a hydrocarbon group, it can be introduced through the use of an amino compound of the formula
    i
    H-N-CH COO or R.NH.
    Preferred are those in which Rf is hexyl, octyl, decyl or their isomers, or phenyl.
    The flotation properties of an amphoteric compound can be obtained by flotation in the presence of a hydrophobic secondary collector, preferably in the form of a polar, water-insoluble, hydrophobic substance having an affinity for mineral particles coated with the amphoteric compound. The amphoteric compound is added in the amount of 10-1000 g / t of ore, preferably 50-500 g / t, and the polar, water-insoluble, hydrophobic substance in the amount of O- 1000 g / t of ore, preferably 5-750 g / t. When using an amphoteric compound and a hydrophobic substance, the weight ratio between them can vary from 1:20 to 20: 1, preferably from 1: 5 to 5: 1. A known emulsifier can be dissolved in a hydrophobic secondary collector in order to obtain a stable emulsion in water and thereby improve distribution.
    The emulsifier may be a non-ionic surfactant, which, if insoluble in water, should be introduced into the polar compound. Suitable polar components are water-insoluble soaps, such as calcium soaps, water-insoluble surface-active alkylenoxide adducts, organic phosphate compounds, such as tributyl phosphate, tri- (2-ethylhexyl) phosphorus veins, and carboxylic esters, such as tributyl ether and tri (2-methylhexyl) ester of NTA, and dioctyl phthalate.
    According to the froth flotation method, an amphoteric collector can be used in combination with a depressant agent. Suitable depressants are hydrophilic polysaccharides substituted with anionic groups (polysaccharides having a relatively low viscosity are preferred). Molecular substitution can vary from one anionic substituent in the polysaccharide molecule to one substituent in the hydroglucose fragment. Examples of suitable polysaccharides are carboxymethylcellulose, sulfo-methylcellulose, arabic camel, bark-hum, tragacanth, hearth, alginate and starch, such as corn starch and anionic starch derivatives such as carboxymethylstarch and phosphate starch .
    During flotation, pH regulators can be added as well as depressants and activators using known techniques. In most flotation processes, the pH is sufficient to achieve good separation. The flotation method also depends on the pH value and this provides additional opportunities for optimizing the separation of various minerals by selecting the appropriate pH value. Thus, the nature of the amphoteric compound varies significantly with pH. At pH values below 6, it is cationic; at pH values above 10, it is anionic; at pH 6-10, it is amphoteric. By separating ore containing apatite and silicate, or apatite and calcite, qualitative selective enrichment is achieved if the flotation process is carried out at pH 8-11. In this case, known frothers and activators can be added.
    Example 1. A ore containing 10.3% by weight of fluorapatite, 17.8% by weight of calcite, approximately 8% by weight of oxidized iron minerals and the rest is silicate minerals, is crushed into pieces less than 3 mm in size and homogenized. A homogenized material in the amount of 1 kg is ground for 10 minutes with 0.8 l of water, 0.18 g of sodium hydroxide and 0.50 g of liquid glass with a concentration of 38 wt. with a SiOji / Na-j O ratio of 3.3: 1, to particles of such a size that 80% of their mass passes through a 350 µm sieve.
    After milling, the pulp is transferred to a 2 L flotation cell and diluted with water to a volume of 2 liters. 0.065 g of collector is added, and the entire contents are conditioned for 5 minutes. Then preliminary flotation and four stages of purification are carried out. During the entire flotation process, the pH is maintained constant by the addition of sodium hydroxide. From the obtained results it can be seen that in the tests carried out by the proposed method, concentrates are obtained with significantly higher levels of alkali than in tests by a known method.
    Example 2. In accordance with Example 1, two mineral pulps are obtained; as a collector, add: | 1 a compound in the amount of 0.010
    1.00 g respectively. These pulps are pre-floated 1 | 1 under the same conditions as in example 1.
    From these results it can be seen that adding a collector in an amount not disturbing 10 g / t of ore provides a significant effect.
    权利要求:
    Claims (3)
    [1]
    1. The method of froth flotation of oxidized and salt-like ores by
    treatment of alkaline modifier and the introduction of an amphoteric collector of the general formula
    f, R - (o) - (CjH40lp —CHj — he is N + ck, soon n, where n o or 1,
    characterized in that, in order to increase the efficiency of the process, an amphoteric compound of the specified formula is introduced as a collector, where R is a hydrocarbon group having 6 to 16 carbon atoms, 0-2 under the condition that p O, then p O, R is a hydrocarbon group having 5 to 16 carbon atoms or a group of the formula
    R- (0) - {CjH O) p-CH ,, - Cff
    where R, p and p have the indicated meanings.
    [2]
    2. Method POP.1, differing from the fact that the collector has a total number of carbon atoms in the hydrocarbon groups R and R, 12–20.
    [3]
    3. Method according to claim, 1 or 2, characterized in that the amphoteric collector is introduced in an amount of 0.01 x X, preferably 0.05 x X 10-0-0.5-10 g / t of ore.
    类似技术:
    公开号 | 公开日 | 专利标题
    US4358368A|1982-11-09|Process for the froth flotation of calcium phosphate-containing minerals and flotation agents therefor
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    AU2013293041B2|2017-09-28|Monothiophosphate containing collectors and methods
    SU1433396A3|1988-10-23|Method of foam flotation of oxidized and salt-like ores
    EP2895272B1|2018-01-10|Process for dressing phosphate ore and use of a collector composition
    AU646295B2|1994-02-17|Sequential and selective flotation of sulfide ores
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    US4732667A|1988-03-22|Process and composition for the froth flotation beneficiation of iron minerals from iron ores
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    US5232581A|1993-08-03|Recovery of platinum group metals and gold by synergistic reaction between allylalkyl thionocarbamates and dithiophosphates
    US4929344A|1990-05-29|Metals recovery by flotation
    EP0298392A2|1989-01-11|Method and agents for obtaining minerals from sulphate ores by flotation
    US4879022A|1989-11-07|Ore flotation process and use of mixed hydrocarbyl dithiophosphoric acids and salts thereof
    DD254144A5|1988-02-17|USE OF NONTRIAL TENSIDES AS ADDITIVES FOR THE FLOTATION OF NON-SULFIDIC ORIGINS
    US4220525A|1980-09-02|Beneficiation of metallic ores by froth flotation using polyhydroxy amine depressants
    EP0324833A1|1989-07-26|Process for beneficiation of sulfide ores by froth flotation
    CA1095640A|1981-02-10|Process for the concentration of sulfidic nickel ores
    GB2106804A|1983-04-20|Process for the beneficiation of metal sulfides and collector combinations therefor
    US4584095A|1986-04-22|Ore flotation method employing phosphorodithio compounds as frother adjuvants
    CA1162663A|1984-02-21|Process for separating copper and iron minerals frommolybdenite
    US4038179A|1977-07-26|Hydrochloric acid flotation process for separating feldspar from siliceous sand
    US4261846A|1981-04-14|Composition for froth flotation of zinc sulfide
    US4795578A|1989-01-03|Process and composition for the froth flotation beneficiation of iron minerals from iron ores
    CA1273927A|1990-09-11|Amphoteric compound and use thereof
    RU2735681C1|2020-11-05|Method of processing carbonate non-sulphide ores and corresponding composition of collectors
    同族专利:
    公开号 | 公开日
    FI76505C|1988-11-10|
    SE452120B|1987-11-16|
    FI76505B|1988-07-29|
    ZA851792B|1985-11-27|
    US4828687A|1989-05-09|
    BR8501477A|1985-11-26|
    SE8401859L|1985-10-05|
    FI850916A0|1985-03-07|
    FI850916L|1985-10-05|
    SE8401859D0|1984-04-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SE386083B|1975-01-15|1976-08-02|Berol Kemi Ab|PROCEDURE FOR FLOTATION OF LEAD, URANIUM AND RARE SYNTHERIC SOIL MINERALS FROM ORE|
    SU1309904A3|1981-05-13|1987-05-07|Берол Кеми Аб |Method of foam flotation of apatite-carbonate ore|US4995965A|1988-06-13|1991-02-26|Akzo America Inc.|Calcium carbonate beneficiation|
    DE3836987A1|1988-10-31|1990-05-23|Goedecke Ag|2-AMINOCARBONIC ACIDS AND THEIR DERIVATIVES, METHOD FOR THE PRODUCTION AND USE THEREOF AS A MEDICINAL PRODUCT|
    US5261539A|1992-10-07|1993-11-16|American Cyanamid Company|Flotation process for purifying calcite|
    US5407080A|1993-06-01|1995-04-18|Tomah Products, Inc.|Apatite flotation reagent|
    CN102775976B|2012-08-02|2015-01-21|中国石油天然气股份有限公司|Non-alkali composite flooding compound based on straight-chain fatty alcohol ether carboxylic betaine|
    EA033037B9|2014-09-18|2020-02-19|Норион Кемикалз Интернэшнл Б.В.|Use of branched fatty alcohol alkoxylates as secondary collectors for froth flotation|
    WO2017162563A2|2016-03-22|2017-09-28|Akzo Nobel Chemicals International B.V.|Use of emulsifier in collector composition|
    BR112021000181A2|2018-07-06|2021-06-01|Nouryon Chemicals International B.V.|process for froth flotation of an ore to recover phosphate-containing materials from ore and method for froth flotation of a phosphate ore|
    法律状态:
    2007-09-20| REG| Reference to a code of a succession state|Ref country code: RU Ref legal event code: MM4A Effective date: 20040404 |
    优先权:
    申请号 | 申请日 | 专利标题
    SE8401859A|SE452120B|1984-04-04|1984-04-04|PROCEDURE FOR FOOT FLOTING AND FLOTING AGENTS|
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