CN101618369B - Hematite low temperature flotation agent and preparation method thereof - Google Patents
Hematite low temperature flotation agent and preparation method thereof Download PDFInfo
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- CN101618369B CN101618369B CN 200910012695 CN200910012695A CN101618369B CN 101618369 B CN101618369 B CN 101618369B CN 200910012695 CN200910012695 CN 200910012695 CN 200910012695 A CN200910012695 A CN 200910012695A CN 101618369 B CN101618369 B CN 101618369B
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Abstract
The invention relates to a hematite low temperature flotation agent and a preparation method thereof; the agent is the water solution of 2-hydroxyl-5-alkyl-sodium benzoic acid ammonium salt and sodium aliphatate in a ratio of 1:1-3 and the concentration of each solute is not less than 0.02mol/L. The preparation method comprises the following steps: preparing sodium aliphatate solution, preparing hematite collector 2-hydroxyl-5-alkyl-sodium benzoic acid ammonium salt solution, and then mixing the two solutions. The agent can be used for hematite roughing, the dosage is 0.01-0.18% of hematite and the flotation temperature is 20-30 DEG C. the preparation method of the invention has simple method, non-toxic and sate raw materials and stable chemical compositions and properties of the prepared flotation agent.
Description
Technical field
The invention belongs to technical field of mineral processing, be specifically related to a kind of preparation method of hematite low temperature flotation agent.
Background technology
Along with the fast development of economy, increasing to Steel demand, the ore dressing scale of thing followed iron ore increases day by day.But competition in the international market is very fierce, and the iron ore raw material is in short supply, energy scarcity, requires each production link all to reduce cost, reduces energy resource consumption.High energy consumption in the therefore present hematite separation process, caused the concern of researcher, particularly the flotation pulp temperature requirement is higher, be generally 35 ℃～45 ℃, the heating ore pulp need to consume a large amount of steam, it is estimated that 8 yuan of the expense of the heating average out to of iron ore concentrate per ton, for the ore dressing plant of producing 1000000 tons of iron ore concentrates per year, consumed the steam expense in 1 year at 8,000,000 yuan, not only increased cost, but also wasted a large amount of energy, this sustainable development and energy policy with country runs in the opposite direction.Therefore guaranteeing to reduce the serviceability temperature of hematite flotation medicament under the constant prerequisite of floatation indicators, not only can reduce production costs, but also energy savings has huge economic benefit and social benefit.
Summary of the invention
For the problem that present hematite flotation medicament exists, the invention provides a kind of preparation method of hematite low temperature flotation agent.
Hematite low temperature flotation agent of the present invention, the aqueous solution for 2-hydroxyl-5-alkylbenzoic acid amine sodium salt and sodium soap, the mol ratio of sodium soap and 2-hydroxyl in the solution-5-alkylbenzoic acid amine sodium salt is (1～3): 1, concentration 〉=the 0.02mol/L of every kind of solute, wherein the structural formula of 2-hydroxyl-5-alkylbenzoic acid amine sodium salt is
R is alkyl C
mH
2m+1, the value of m is 1～8,
The sodium soap chemical formula is R ' COONa, and R ' is C
nH
2n+1Or C
nH
2n-1, n=11～17.
The processing step for preparing above-mentioned hematite low temperature flotation agent is as follows:
1, preparation sodium soap solution
Aliphatic acid R ' COOH is soluble in water, be mixed with the adipic acid solution that concentration is 0.5～1.0mol/L, with the adipic acid solution prepared and the sodium hydroxide solution mix and blend of 0.5～5mol/L, preparation sodium soap solution, reaction equation is:
R’-COOH+NaOH＝RCOONa+H
2O
Wherein R ' is C
nH
2n+1Or C
nH
2n-1, n=11～17; Aliphatic acid as reactant mixes with the NaOH equimolar amounts.
2, preparation bloodstone collecting medicament 2-hydroxyl 5-alkylbenzoic acid amine sodium salt C
mH
2m+1C
6H
3(OH) CONHONa solution
In reactor, add 2-hydroxyl-5-alkylbenzoic acid methyl esters C
mH
2m+1C
6H
3(OH) COOCH
3Add the hydroxylamine hydrochloride with its equimolar amounts, stirred 1～10 minute, 500～2500 rev/mins of stir speed (S.S.)s add the sodium hydroxide solution of 0.5～5mol/L again, stir, 500～2500 rev/mins of stir speed (S.S.)s, 30～35 ℃ of control thermotonuses, the pH value of control solution is 7, reacted 6～7 hours, adopting glass container in the preparation process is reactor.Make 2-hydroxyl-5-alkylbenzoic acid amine sodium salt C
mH
2m+1C
6H
3(OH) CONHONa solution.
Wherein the mol ratio of NaOH and 2-hydroxyl-5-alkylbenzoic acid methyl esters is (2～3): 1.
C
mH
2m+1In, the value of m is 1～8.
Reaction equation is:
2-hydroxyl-5-alkylbenzoic acid methyl esters hydroxylamine hydrochloride 2-hydroxyl-5-alkylbenzoic acid azanol
2-hydroxyl-5-alkylbenzoic acid amine sodium salt
R is alkyl C
mH
2m+1, the value of m is 1～8.
3, formulating low-temperature floating agent
Mol ratio according to sodium soap and 2-hydroxyl-5-alkylbenzoic acid amine sodium salt is (1～3): 1 mixed proportion, and with the 2-hydroxyl of step 2 preparation-5-alkylbenzoic acid amine sodium salt (C
mH
2m+1C
6H
3(OH) CONHONa, the m=1～8) sodium soap (C of the aqueous solution and step 1 preparation
nH
2n+1COONa or C
nH
2n-1COONa, n=11～17) aqueous solution, namely obtain low temperature flotation agent of the present invention, be blended in the glass container, under normal temperature condition, carry out.
Resulting low temperature flotation agent of the present invention is 2-hydroxyl-5-alkylbenzoic acid amine sodium salt (C
mH
2m+1C
6H
3(OH) CONHONa, m=1～8) and sodium soap (C
nH
2n+1COONa or C
nH
2n-1COONa, n=11～17) the aqueous solution, in the solution, the mol ratio of sodium soap and 2-hydroxyl-5-alkylbenzoic acid amine sodium salt is (1～3): 1.
In order to improve the concentration of 2-hydroxyl in the product-5-alkylbenzoic acid amine sodium salt and sodium soap, can carry out concentration to the aqueous solution that obtains after mixing in the step 3, also step 1 can be obtained the 2-hydroxyl that sodium soap solution and step 2 obtain-5-alkylbenzoic acid amine sodium salt solution and be concentrated into respectively suitable concentration and again two kinds of solution are mixed, get final product so that low temperature flotation agent satisfies following the requirement:
Require the concentration of every kind of solute to be not less than 0.02mol/L, higher limit then can be that it reaches the concentration when dissolving saturation state.
Concentrated employing evaporates the method for amount of water or adopts the method for counter-infiltration.
Low temperature flotation agent of the present invention is used for bloodstone roughly selects, its consumption is 0.01～0.18% of bloodstone by mass percentage, 20～30 ℃ of flotation temperatures, and the concentrate rate of recovery can reach 82～93%.
The present invention has following remarkable advantage:
1, the simple and raw materials used safety non-toxic of preparation method of the present invention, combined flotation pharmaceutical chemistry composition and the stable in properties of preparation.
2, the combined flotation medicament of the present invention preparation is used for hematite flotation, and is selectively good, is subjected to that other ion interference are little in the ore pulp, the collecting performance is strong, can realize bloodstone when flotation and the effective separation of other ores.
3, the combined flotation medicament of the present invention's preparation, floating agent dosage is little, serviceability temperature is low, energy energy savings, reduction flotation cost.
The specific embodiment
Aliphatic acid, aromatic ester that following examples adopt are the technical pure preparation; NaOH, hydroxylamine hydrochloride are the chemical pure preparation, and the water that obtain solution adopts is running water.
Adopt the hydrochloric acid solution of 1mol/L and the sodium hydroxide solution of 1mol/L to carry out acidity adjustment.
Embodiment 1
The processing step of preparation hematite low temperature flotation agent is as follows:
1, preparation sodium soap solution
With pentadecanoic acid C
14H
29COOH is soluble in water, be mixed with pentadecanoic acid solution, its concentration is 1.0mol/L, with the pentadecanoic acid solution the prepared sodium hydroxide solution mix and blend (being that pentadecanoic acid mixes with the NaOH equimolar amounts) with isopyknic 1.0mol/L, being prepared into concentration is the pentadecanoic acid sodium solution of 0.5mol/L, and reaction equation is:
C
14H
29-COOH+NaOH＝C
14H
29-COONa+H
2O
Pentadecanoic acid and the reaction of NaOH equimolar amounts.
2, preparation bloodstone collecting medicament 2-hydroxyl 5-octyl group benzoic acid amine sodium salt C
8H
17C
6H
3(OH) CONHONa
In reactor, add 2-hydroxyl-5-octyl group methyl benzoate C
8H
17C
6H
3(OH) COOCH
3Add the hydroxylamine hydrochloride with its equimolar amounts, stirred 3 minutes, 2500 rev/mins of stir speed (S.S.)s add the sodium hydroxide solution of 1.0mol/L again, stir, 500 rev/mins of stir speed (S.S.)s, 32 ℃ of control thermotonuses, the pH value of control solution is 7, reacted 6.5 hours, adopting glass container in the preparation process is reactor.Obtain concentration and be the 2-hydroxyl of 0.5mol/L-5-octyl group benzoic acid amine sodium salt C
8H
17C
6H
3(OH) CONHONa.
Wherein NaOH and 2-hydroxyl-5-octyl group methyl benzoate mol ratio is 2: 1.Product need not be purified, and is coarse products.
Reaction equation is:
2-hydroxyl-5-octyl group methyl benzoate hydroxylamine hydrochloride 2-hydroxyl-5-octyl group benzoic acid azanol
2-hydroxyl-5-octyl group benzoic acid azanol 2-hydroxyl-5-octyl group benzoic acid amine sodium salt
R is C
8H
17
3, formulating low-temperature floating agent
With the 2-hydroxyl of step 2 preparation-5-octyl group benzoic acid amine sodium salt (C
8H
17C
6H
3(OH) CONHONa) pentadecanoic acid sodium (C of the aqueous solution and step 1 preparation
14H
29COONa) aqueous solution, mixed proportion are the volume ratio 1: 1 of 2-hydroxyl-5-octyl group benzoic acid amine sodium salt solution and sodium soap solution, namely obtain low temperature flotation agent, are blended in the glass container, carry out under normal temperature condition.
Resulting low temperature flotation agent is 2-hydroxyl-5-octyl group benzoic acid amine sodium salt (C
8H
17C
6H
3CONHONa) and pentadecanoic acid sodium (C (OH)
14H
29COONa) the aqueous solution, the concentration of 2-hydroxyl-5-octyl group benzoic acid amine sodium salt is 0.25mol/L, the concentration of pentadecanoic acid sodium is 0.25mol/L.
It is that 33.6% bloodstone is roughly selected that the medicament that makes is used for head grade, its consumption is 0.1% of bloodstone by mass percentage, and 20 ℃ of flotation temperatures have been obtained the floatation indicators of concentrate grade 50.8%, the concentrate rate of recovery 86.5%, tailings grade 9.8%.
Embodiment 2
The processing step of preparation hematite low temperature flotation agent is as follows:
1, preparation sodium soap solution
With dodecoic acid C
11H
23COOH is soluble in water, be mixed with dodecoic acid solution, its concentration is 0.5mol/L, with the dodecoic acid solution the prepared sodium hydroxide solution mix and blend (being that dodecoic acid mixes with the NaOH equimolar amounts) with isopyknic 0.5mol/L, being prepared into concentration is the sodium laurate solution of 0.25mol/L, and reaction equation is:
C
11H
23-COOH+NaOH＝C
11H
23COONa+H
2O
Dodecoic acid and NaOH equimolar amounts.
2, preparation bloodstone collecting medicament 2-hydroxyl-5-butylbenzoic acid amine sodium salt C
4H
9C
6H
3(OH) CONHONa
In reactor, add 2-hydroxyl-5-butylbenzoic acid methyl esters C
4H
9C
6H
3(OH) COOCH
3Add the hydroxylamine hydrochloride with its equimolar amounts, stirred 10 minutes, 500 rev/mins of stir speed (S.S.)s add the sodium hydroxide solution of 0.6mol/L again, stir, 2000 rev/mins of stir speed (S.S.)s, 35 ℃ of control thermotonuses, the pH value of control solution is 7, reacted 6 hours, adopting glass container in the preparation process is reactor.Obtain concentration and be the 2-hydroxyl of 0.2mol/L-5-butylbenzoic acid amine sodium salt C
4H
9C
6H
3(OH) CONHONa.
Wherein NaOH and 2-hydroxyl-5-butylbenzoic acid methyl esters mol ratio is 3: 1.Product need not be purified, and is coarse products.
Reaction equation is:
2-hydroxyl-5-butylbenzoic acid methyl esters hydroxylamine hydrochloride 2-hydroxyl-5-butylbenzoic acid azanol
2-hydroxyl-5-butylbenzoic acid azanol 2-hydroxyl-5-butylbenzoic acid amine sodium salt
R is C
4H
9
3, formulating low-temperature floating agent
The sodium laurate aqueous solution that the 2-hydroxyl of step 2 preparation-5-butylbenzoic acid amine sodium-salt aqueous solution and step 1 are prepared, mixed proportion is sodium laurate and 2-hydroxyl-5-butylbenzoic acid amine sodium salt mol ratio 2.5: 1, the i.e. volume ratio 2: 1 of ten difatty acid sodium solutions and 2-hydroxyl-5-butylbenzoic acid amine sodium salt solution, namely obtain low temperature flotation agent, be blended in the glass container, under normal temperature condition, carry out.
Resulting low temperature flotation agent is the mixed aqueous solution of 2-hydroxyl-5-butylbenzoic acid amine sodium salt and sodium laurate, and the concentration of 2-hydroxyl-5-butylbenzoic acid amine sodium salt is 0.0667mol/L, and the concentration of sodium laurate is 0.167mol/L.
It is that 33.6% bloodstone is roughly selected that the medicament that makes is used for head grade, its consumption is 0.18% of bloodstone by mass percentage, flotation temperature is 23 ℃, has obtained the floatation indicators of concentrate grade 52.6%, the concentrate rate of recovery 90.2%, tailings grade 8.1%.
Embodiment 3
The processing step of preparation hematite low temperature flotation agent is as follows:
1, preparation sodium soap solution
With stearic acid C
17H
35COOH is soluble in water, is mixed with stearic acid solution, and its concentration is 1.0mol/L, with the stearic acid solution prepared and the sodium hydroxide solution mix and blend of 5mol/L, stearic acid mixes with the NaOH equimolar amounts, and being prepared into concentration is the sodium stearate solution of 0.8mol/L, and reaction equation is:
C
17H
35-COOH+NaOH＝C
17H
35COONa+H
2O
2, preparation bloodstone collecting medicament 2-hydroxy-5-methyl yl benzoic acid amine sodium salt CH
3C
6H
3(OH) CONHONa
In reactor, add 2-hydroxy-5-methyl yl benzoic acid methyl esters CH
3C
6H
3(OH) COOCH
3Add the hydroxylamine hydrochloride with its equimolar amounts, stirred 5 minutes, 2000 rev/mins of stir speed (S.S.)s add the sodium hydroxide solution of 2.5mol/L again, stir, 1000 rev/mins of stir speed (S.S.)s, 30～35 ℃ of control thermotonuses, the pH value of control solution is 7, reacted 6～7 hours, adopting glass container in the preparation process is reactor.Obtaining concentration is the 2-hydroxy-5-methyl yl benzoic acid amine sodium salt CH of 1mol/L
3C
6H
3(OH) CONHONa.
Wherein NaOH and 2-hydroxy-5-methyl yl benzoic acid methyl esters mol ratio are 2.5: 1.Product need not be purified, and is coarse products.
Reaction equation is:
2-hydroxy-5-methyl yl benzoic acid methyl esters hydroxylamine hydrochloride 2-hydroxy-5-methyl yl benzoic acid azanol
2-hydroxy-5-methyl yl benzoic acid azanol 2-hydroxy-5-methyl yl benzoic acid amine sodium salt
R is CH
3
3, formulating low-temperature floating agent
With the 2-hydroxy-5-methyl yl benzoic acid amine sodium-salt aqueous solution of step 2 preparation and the sodium stearate aqueous solution of step 1 preparation, mixed proportion is the volume ratio 3: 1 (sodium stearate and 2-hydroxy-5-methyl yl benzoic acid amine sodium salt mol ratio are 2.4: 1) of sodium stearate solution and 2-hydroxy-5-methyl yl benzoic acid amine sodium salt solution, namely obtain low temperature flotation agent of the present invention, be blended in the glass container, under normal temperature condition, carry out.
Resulting low temperature flotation agent is the aqueous solution of 2-hydroxy-5-methyl yl benzoic acid amine sodium salt and sodium stearate, and the concentration of 2-hydroxy-5-methyl yl benzoic acid amine sodium salt is 0.25mol/L, and the concentration of sodium stearate is 0.6mol/L.
Combined flotation medicament of the present invention is used for bloodstone carries out the one roughing test, 20～30 ℃ of flotation temperatures, the concentrate rate of recovery can reach 82～93%.
It is that 33.6% bloodstone is roughly selected that the medicament that makes is used for head grade, its consumption is 0.01% of bloodstone by mass percentage, flotation temperature is 25 ℃, has obtained the floatation indicators of concentrate grade 54.8%, the concentrate rate of recovery 91.5%, tailings grade 7.8%.
Embodiment 4
The processing step of preparation hematite low temperature flotation agent is as follows:
1, the acid sodium solution that makes up oil
With industrial goods oleic acid CH
3(CH
2)
7CH=CH (CH
2)
7COOH is soluble in water, is mixed with oleic acid solutions, and concentration is 0.8mol/L, with the oleic acid solutions prepared and the sodium hydroxide solution mix and blend of isopyknic 0.8mol/L, is prepared into the sodium oleate solution that concentration is 0.4mol/L, and reaction equation is:
CH
3(CH
2)
7CH＝CH(CH
2)
7-COOH+NaOH＝CH
3(CH
2)
7CH＝CH(CH
2)
7COONa+H
2O
2, preparation bloodstone collecting medicament 2-hydroxyl 5-butylbenzoic acid amine sodium salt C
4H
9C
6H
3(OH) CONHONa
In reactor, add 2-hydroxyl-5-butylbenzoic acid methyl esters C
4H
9C
6H
3(OH) COOCH
3Add the hydroxylamine hydrochloride with its equimolar amounts, stirred 2 minutes, 1000 rev/mins of stir speed (S.S.)s add the sodium hydroxide solution of 5mol/L again, stir, 1500 rev/mins of stir speed (S.S.)s, 30 ℃ of control thermotonuses, the pH value of control solution is 7, reacted 7 hours, adopting the non iron container in the preparation process is reactor (for example glass container).Obtain concentration and be the 2-hydroxyl of 2.5mol/L-5-butylbenzoic acid amine sodium salt solution.
Wherein NaOH and 2-hydroxyl-5-butylbenzoic acid methyl esters mol ratio is 2: 1.Product need not be purified, and is coarse products.
Reaction equation is:
2-hydroxyl-5-butylbenzoic acid methyl esters hydroxylamine hydrochloride 2-hydroxyl-5-butylbenzoic acid azanol
2-hydroxyl-5-butylbenzoic acid azanol 2-hydroxyl-5-butylbenzoic acid amine sodium salt
R is C
4H
9
3, formulating low-temperature floating agent
The 2-hydroxyl of step 2 preparation-5-butylbenzoic acid amine sodium-salt aqueous solution is mixed with the aqueous solution sodium oleate that step 1 prepares, mixed proportion is the volume ratio 9: 1 (mol ratio of enuatrol and 2-hydroxyl-5-butylbenzoic acid amine sodium salt is 1.44: 1) of sodium oleate solution and 2-hydroxyl-5-butylbenzoic acid amine sodium salt solution, namely obtain low temperature flotation agent of the present invention, be blended in the glass container, under normal temperature condition, carry out.
Resulting low temperature flotation agent is the aqueous solution of 2-hydroxyl-5-butylbenzoic acid amine sodium salt and enuatrol, and the concentration of 2-hydroxyl-5-butylbenzoic acid amine sodium salt is 0.25mol/L, and the concentration of enuatrol is 0.36mol/L.
It is that 33.6% bloodstone is roughly selected that the medicament that makes is used for head grade, its consumption is 0.15% of bloodstone by mass percentage, flotation temperature is 28 ℃, has obtained the floatation indicators of concentrate grade 58.8%, the concentrate rate of recovery 92.7%, tailings grade 6.9%.
Embodiment 5
The processing step of preparation hematite low temperature flotation agent is as follows:
1, preparation sodium soap solution
With pentadecanoic acid C
14H
29COOH is soluble in water, be mixed with pentadecanoic acid solution, its concentration is 0.2mol/L, with the pentadecanoic acid solution the prepared sodium hydroxide solution mix and blend (being that pentadecanoic acid mixes with the NaOH equimolar amounts) with isopyknic 0.2mol/L, being prepared into concentration is the pentadecanoic acid sodium solution of 0.1mol/L, and reaction equation is:
C
14H
29-COOH+NaOH＝C
14H
29-COONa+H
2O
Pentadecanoic acid and the reaction of NaOH equimolar amounts.
2, preparation bloodstone collecting medicament 2-hydroxyl-5-ethylamino benzonitrile acid amide sodium salt C
2H
5C
6H
3(OH) CONHONa
In reactor, add 2-hydroxyl-5-ethyl benzoate methyl esters C
2H
5C
6H
3(OH) COOCH
3Add the hydroxylamine hydrochloride with its equimolar amounts, stirred 3 minutes, 2500 rev/mins of stir speed (S.S.)s add the sodium hydroxide solution of 1.0mol/L again, stir, 1500 rev/mins of stir speed (S.S.)s, 32 ℃ of control thermotonuses, the pH value of control solution is 7, reacted 6.5 hours, adopting glass container in the preparation process is reactor.Obtaining concentration is the 2-hydroxyl 5-ethylamino benzonitrile acid amide sodium salt C of 0.5mol/L
2H
5C
6H
3(OH) CONHONa.
Wherein NaOH and 2-hydroxyl-5-ethyl benzoate methyl esters mol ratio is 2: 1.Product need not be purified, and is coarse products.
Reaction equation is:
2-hydroxyl-5-ethyl benzoate methyl esters hydroxylamine hydrochloride 2-hydroxyl-5-ethyl benzoate azanol
2-hydroxyl-5-ethyl benzoate azanol 2-hydroxyl-5-ethylamino benzonitrile acid amide sodium salt
R is C
2H
5
3, formulating low-temperature floating agent
With the 2-hydroxyl of step 2 preparation-5-ethylamino benzonitrile acid amide sodium salt (C
2H
5C
6H
3(OH) CONHONa) aqueous solution adopts the method for counter-infiltration to be concentrated into 1mol/L, with the pentadecanoic acid sodium (C of step 1 preparation
14H
29COONa) aqueous solution adopts the method for counter-infiltration to be concentrated into 3mol/L, 2-hydroxyl-5-ethylamino benzonitrile acid amide sodium salt solution and pentadecanoic acid sodium solution were mixed (mol ratio that is pentadecanoic acid sodium and 2-hydroxyl-5-ethylamino benzonitrile acid amide sodium salt is 3: 1) in 1: 1 by volume, namely obtain low temperature flotation agent, be blended in the glass container, under normal temperature condition, carry out.
Resulting low temperature flotation agent is 2-hydroxyl-5-ethylamino benzonitrile acid amide sodium salt (C
2H
5C
6H
3CONHONa) and pentadecanoic acid sodium (C (OH)
14H
29COONa) the aqueous solution, the concentration of 2-hydroxyl-5-ethylamino benzonitrile acid amide sodium salt is 0.5mol/L, the concentration of pentadecanoic acid sodium is 1.5mol/L.
It is that 33.6% bloodstone is roughly selected that the medicament that makes is used for head grade, its consumption is 0.01% of bloodstone by mass percentage, and 20 ℃ of flotation temperatures have been obtained the floatation indicators of concentrate grade 50.8%, the concentrate rate of recovery 86.5%, tailings grade 9.8%.
Claims (6)
1. hematite low temperature flotation agent, mixed aqueous solution for 2-hydroxyl-5-alkylbenzoic acid amine sodium salt and sodium soap, the mol ratio of sodium soap and 2-hydroxyl in the solution-5-alkylbenzoic acid amine sodium salt is (1～3): 1, concentration 〉=the 0.02mol/L of every kind of solute, wherein the structural formula of 2-hydroxyl-5-alkylbenzoic acid amine sodium salt is
R is alkyl C
mH
2m+1, the value of m is 1～8,
The sodium soap chemical formula is R ' COONa, and R ' is C
nH
2n+1Or C
nH
2n-1, n=11～17.
2. the preparation method of hematite low temperature flotation agent claimed in claim 1 is characterized in that processing step is as follows:
(1) preparation sodium soap solution
Aliphatic acid R ' COOH is soluble in water, be mixed with the adipic acid solution that concentration is 0.5～1.0mol/L, with the adipic acid solution prepared and the sodium hydroxide solution mix and blend of 0.5～5mol/L, reaction equation is:
R’-COOH+NaOH＝R’COONa+H
2O
Wherein R ' is C
nH
2n+1Or C
nH
2n-1, n=11～17;
(2) preparation bloodstone collecting medicament 2-hydroxyl 5-alkylbenzoic acid amine sodium salt C
mH2
M+1C
6H
3(OH) CONHONa solution adds 2-hydroxyl-5-alkylbenzoic acid methyl esters C in reactor
mH
2m+1C
6H
3(OH) COOCH
3, the hydroxylamine hydrochloride of adding and its equimolar amounts stirred 1～10 minute, the sodium hydroxide solution that adds again 0.5～5mol/L stirs, 30～35 ℃ of control thermotonuses, the pH value of control solution is 7, reacts 6～7 hours, makes 2-hydroxyl-5-alkylbenzoic acid amine sodium salt solution; C
mH
2m+1In, the value of m is 1～8, reaction equation is:
R is alkyl C
mH
2m+1, the value of m is 1～8,
(3) preparation hematite separation combined flotation medicament
Mol ratio according to sodium soap and 2-hydroxyl-5-alkylbenzoic acid amine sodium salt is (1～3): 1 mixed proportion, with the 2-hydroxyl of step (2) preparation-5-alkylbenzoic acid amine sodium-salt aqueous solution and the sodium soap aqueous solution that step (1) prepares, be blended in the glass container, under normal temperature condition, carry out.
3. according to the preparation method of hematite low temperature flotation agent claimed in claim 2, it is characterized in that in the step (1), mix with the NaOH equimolar amounts as the aliphatic acid of reactant.
4. according to the preparation method of hematite low temperature flotation agent claimed in claim 2, it is characterized in that in the step (2), adopting glass container in the preparation process is reactor.
5. according to the preparation method of hematite low temperature flotation agent claimed in claim 2, it is characterized in that in the step (2), the mol ratio of NaOH and 2-hydroxyl-5-alkylbenzoic acid methyl esters is (2～3): 1.
6. the using method of hematite low temperature flotation agent claimed in claim 1 is characterized in that roughly selecting for bloodstone, and its consumption is 0.01～0.18% of bloodstone by mass percentage, 20～30 ℃ of flotation temperatures.
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| CN101618369B true CN101618369B (en) | 2013-01-23 |
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| CN103934115A (en) * | 2014-04-14 | 2014-07-23 | 辽宁科技大学 | Efficient collecting agent for hematite reverse flotation and application of efficient collecting agent |
| CN104163758B (en) * | 2014-06-23 | 2016-03-09 | 四川晶华生物科技有限公司 | The stearic salt derivative of 9,10,12-trihydroxy- |
| CN109465112B (en) * | 2018-11-16 | 2021-02-19 | 鞍山市天翔工业科技有限公司 | Chelate amphoteric collector, preparation method thereof and composition consisting of chelate amphoteric collector and fatty acid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2841605A (en) * | 1955-01-12 | 1958-07-01 | Union Carbide Corp | Production of heterocyclic dithiophosphoric esters |
| WO1983003603A1 (en) * | 1982-04-20 | 1983-10-27 | Bendly, Mariann | Plant protector agent |
| CN1303444A (en) * | 1998-05-27 | 2001-07-11 | Cytec技术有限公司 | Mineral collector compositions of fatty hydroxamic acid in admixture with oil and process of making same |
| CN101455995A (en) * | 2007-12-14 | 2009-06-17 | 鞍钢集团矿业公司 | Mineral dressing collector for poor hematite reverse flotation |
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2009
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2841605A (en) * | 1955-01-12 | 1958-07-01 | Union Carbide Corp | Production of heterocyclic dithiophosphoric esters |
| WO1983003603A1 (en) * | 1982-04-20 | 1983-10-27 | Bendly, Mariann | Plant protector agent |
| CN1303444A (en) * | 1998-05-27 | 2001-07-11 | Cytec技术有限公司 | Mineral collector compositions of fatty hydroxamic acid in admixture with oil and process of making same |
| CN101455995A (en) * | 2007-12-14 | 2009-06-17 | 鞍钢集团矿业公司 | Mineral dressing collector for poor hematite reverse flotation |
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| CN101618369A (en) | 2010-01-06 |
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