CN109675340A - A kind of de-oiling agent and its application method cleaning waste rolling oil greasy filth - Google Patents
A kind of de-oiling agent and its application method cleaning waste rolling oil greasy filth Download PDFInfo
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- CN109675340A CN109675340A CN201910173772.8A CN201910173772A CN109675340A CN 109675340 A CN109675340 A CN 109675340A CN 201910173772 A CN201910173772 A CN 201910173772A CN 109675340 A CN109675340 A CN 109675340A
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- oiling agent
- greasy filth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0288—Applications, solvents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G71/00—Treatment by methods not otherwise provided for of hydrocarbon oils or fatty oils for lubricating purposes
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- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of de-oiling agent and its application method for cleaning waste rolling oil greasy filth, the de-oiling agent component and weight percentage are as follows: compound surfactant 15%-30%；Sodium metasilicate 10%-20%；Polyalcohol 5%-10%；Sodium peroxydisulfate 2%-5%；Triethanolamine 0.2%-1%；Water surplus, its application method are as follows: mix rolling greasy filth with above-mentioned de-oiling agent, it is centrifuged after stirring, it is centrifugally separating to obtain solid-liquid two-phase, upper solution is outwelled and carries out separating oily phase and water phase, oil is mutually refined, water phase is recyclable to be used as solvent, lower layer's residue rejoins fresh de-oiling agent and is washed, and repeats the above-mentioned cleaning of step, centrifugation and separating step, until content of organics is lower than 3% in residue after centrifugation；It is most neutral and dry to the residue rinsing finally obtained.De-oiling agent of the invention can thoroughly clean the grease rolled in greasy filth, to realize the extraction of superfine iron powder.
Description
Technical field
The present invention relates to the de-oiling agents of steel plate field waste rolling oil mud, and in particular to a kind of cleaning waste rolling oil greasy filth takes off
Finish and its application method.
Background technique
ROLLING OIL is the lubricant for playing lubrication with cooling effect that cold-rolling of steel plate must use in the process.Due to steel plate and roll
Huge frictional force between roller can generate iron filings, and the iron filings of generation are distributed in emulsion by the flowing of emulsion, and cold rolling mill is adopted
Emulsion is continued cycling through use after purification by the iron particle that greater particle size in emulsion is absorbed with magnetic filter.Even if
It cannot be removed using magnetic filter small particle, ultra-small grain size iron powder, ROLLING OIL degradation need to be replaced periodically, these displacements
Waste rolling oil out is the mixture of iron powder and ROLLING OIL, and the substance that these mixtures and Magnetic filter get off is our usual institutes
The waste rolling oil mud said.
With the fast development of Chinese steel plate industry, the amount for generating waste rolling oil mud is also increasing.It is domestic to the year two thousand twenty
About 3.3 ten thousand tons/year of the dosage of steel plate industry ROLLING OIL generates about 20,000 tons/year of amount of waste rolling oil mud.Waste rolling oil mud belongs to
The 900-204-08 of HW08 series in dangerous waste catalogue.
Since the property of waste rolling oil mud is special, processing technique difficulty is big, is always the technology for perplexing steel plate enterprise development
Problem.It is the direction studied at present that exploitation detergent, which starts the cleaning processing rolling greasy filth,.Current detergent is mainly
Alkaline detergent and some surface active agent compositions, but this kind of detergent can wash the vegetable oil component in greasy filth, to polyester
And mineral oil wash is not thorough, washing effect is bad.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of de-oiling agent and its application method for cleaning waste rolling oil greasy filth, it should
De-oiling agent component is mainly compound surfactant；Sodium metasilicate；Polyalcohol；Sodium peroxydisulfate and triethanolamine, application method are as follows:
Will rolling greasy filth mixed with above-mentioned de-oiling agent, be centrifuged after stirring, be centrifugally separating to obtain solid-liquid two-phase, outwell upper solution into
Row separation oil is mutually mutually refined with water phase, oil, and water phase is recyclable to be used as solvent, and lower layer's residue rejoins fresh de-oiling
Agent is washed, and the above-mentioned cleaning of step, centrifugation and separating step are repeated, until content of organics is lower than 3% in residue after centrifugation；
It is most neutral and dry to the residue rinsing finally obtained.It is thoroughly clear that de-oiling agent of the invention can will roll the grease in greasy filth
It washes, to realize the extraction of superfine iron powder.
To achieve the above object, a kind of de-oiling agent cleaning waste rolling oil greasy filth, the quality proportioning of each component are as follows:
Compound surfactant 15%-30%；Sodium metasilicate 10%-20%；Polyalcohol 5%-10%；Sodium peroxydisulfate 2%-
5%；Triethanolamine 0.2%-1%；Water surplus.
The further quality proportioning of each component of the degreasing agent are as follows:
Compound surfactant 20%-30%；Sodium metasilicate 15%-20%；Polyalcohol 8%-10%；Sodium peroxydisulfate 2%-
5%；Triethanolamine 0.5%-1%；Water surplus.
Further, the polyalcohol is one of ethylene glycol, propylene glycol, glycerine, butanediol or a variety of.
Further, in the compound surfactant each component quality proportioning are as follows:
Neopelex 15%-30%, nonylphenol polyoxyethylene ether 10%-20%, disodium ethylene diamine tetraacetate
2%-8%, oxalic acid 1%-3%, water surplus.
Further, in the compound surfactant each component quality proportioning are as follows:
Neopelex 20%-30%, nonylphenol polyoxyethylene ether 15%-20%, disodium ethylene diamine tetraacetate
4%-8%, oxalic acid 1%-3%, water surplus.
Preferably grease mutually can be adsorbed with the compound surfactant of dosage using said components, improve de-oiling effect
Fruit；Cooperate sodium metasilicate as dispersing agent simultaneously, promotes the removing of grease and Action of Surfactant and grease, can be effectively prevented
The resorption of grease；Emulsifier of the polyalcohol as de-oiling agent is added, significantly improves the emulsification and de-oiling effect of de-oiling agent,
Above-mentioned sodium peroxydisulfate and triethanolamine is the regulator of de-oiling agent, can significantly be improved by modulation pH value de-
The effect of grease type.
Above-mentioned de-oiling agent has good removal effect to containing mineral oil and polymerization esters ROLLING OIL mud, and each component collaboration is made
With, can will roll greasy filth solid in content of organics be reduced to 3wt% hereinafter, be much higher than the prior art various de-oiling agents.
In addition to this, inventor additionally provides the application method of above-mentioned de-oiling agent, comprising the following steps:
(1) rolling greasy filth is mixed with de-oiling agent first, solid-liquid mass ratio 1:5-15；
It (2) will rolling greasy filth and de-oiling agent stirring；
(3) mixed liquor is centrifuged to obtain solid-liquid two；
(4) it outwells upper solution to carry out separating oily phase and water phase, oil is mutually refined, and water phase is recyclable to be made as solvent
With；
(5) lower layer's residue rejoins fresh de-oiling agent and is washed, and the mass ratio of greasy filth and fresh de-oiling agent is 1:5,
It repeats step (2) (3) (4), until content of organics is lower than 3wt% in residue after centrifugation；
(6) clear water is used to carry out rinsing the residue finally obtained until for neutrality；
(7) residue obtained to rinsing is dried, and 110 DEG C of drying temperature, iron powder can be obtained.
Further, in the step (2), whipping temp be 40-80 DEG C, mixing time 2-6 hours, by the oil in greasy filth
It mutually elutes, obtains iron powder.
Further, in the step (3), centrifugal rotational speed 3000-10000r/min, centrifugation time 5-20min.
Further, in the step (6), rinse temperature is 50-80 DEG C, and rinsing time is 3-6 hours, in this way can be with
Iron powder oil remained on surface, mutually removal keeps iron powder purer.
The present invention has the advantages that
1, the degreasing agent synthesized by the present invention especially has good result, each group to containing mineral oil and polymerization esters ROLLING OIL mud
Divide synergistic effect, the content of organics rolled in greasy filth solid can be reduced to 3wt% or less.
2, rolling greasy filth is cleaned using degreasing agent synthesized by the present invention, water can be used as solvent and continue cycling through benefit
With.
3, the de-oiling agent is applied to rolling greasy filth, can isolate superfine iron powder, reduce enterprise's danger wastes
Processing cost can also obtain the superfine iron powder of high added value.
Specific embodiment
The technical solution of the present invention is not limited to the following list, further includes any between each specific implementation
Combination, unless otherwise specified, the percentage in following embodiments is weight percentage.
Embodiment 1
It is a kind of clean waste rolling oil greasy filth de-oiling agent, composition and the preparation method is as follows:
Take first 23% neopelex, 15% nonylphenol polyoxyethylene ether, 5% ethylenediamine tetra-acetic acid
Disodium, 1.5% oxalic acid, 55.5% water, which are mixed to dissolve, is made compound surfactant.Then take 20% it is above-mentioned multiple
Sodium metasilicate with surfactant, 17%；8% ethylene glycol；2% sodium peroxydisulfate；0.5% triethanolamine；52.5%
Water is mixed together 30 minutes acquisition de-oiling agents of stirring.
100g rolling greasy filth is taken to mix with above-mentioned de-oiling agent solution, solid-liquid mass ratio is 1:5 (i.e. 500g de-oiling agent), 60
6h is stirred at DEG C, and mixed liquor is centrifuged to obtain grease mud three-phase；It outwells upper solution and separates oily Xiang Yushui to it
Phase, oil are mutually refined, and water phase is recyclable to be used as solvent；
Lower layer's solid residue is mixed with de-oiling agent mass ratio 1:5 by residue, stirs 6h at 60 DEG C, by mixed liquor carry out from
Heart separation, repeats the above steps, until content of organics is lower than 3wt% in residue after centrifugation；
It uses clear water to carry out rinsing residue until iron powder can be obtained after 110 DEG C of dryings for neutrality, tests in iron powder and contain
Oil mass 1.4%, iron powder specific surface area are 98m2/g。
Embodiment 2
It is a kind of clean waste rolling oil greasy filth de-oiling agent, composition and the preparation method is as follows:
Take first 28% neopelex, 15% nonylphenol polyoxyethylene ether, 7% ethylenediamine tetra-acetic acid
Disodium, 1% oxalic acid, 49% water, which are mixed to dissolve, is made compound surfactant.Then take 15% compounding surface living
Property agent, 10% sodium metasilicate；8% ethylene glycol；2% sodium peroxydisulfate；0.5% triethanolamine；64.5% water mixes together
Close 30 minutes acquisition de-oiling agents of stirring.
100g rolling greasy filth is taken to mix with above-mentioned solution, solid-liquid mass ratio 1:5 stirs 6h at 60 DEG C, by mixed liquor
It is centrifuged to obtain grease mud three-phase；It outwells upper solution and separates oily mutually with water phase, oily mutually to be refined, water phase to it
It is recyclable to be used as solvent；
Lower layer's solid residue is mixed with de-oiling agent mass ratio 1:5 by residue, stirs 6h at 60 DEG C, by mixed liquor carry out from
Heart separation, repeats the above steps, until content of organics is lower than 3wt% in residue after centrifugation；
It uses clear water to carry out rinsing residue until iron powder can be obtained after 110 DEG C of dryings for neutrality, tests in iron powder and contain
Oil mass 1.7%, iron powder specific surface area are 92m2/g。
Embodiment 3
It is a kind of clean waste rolling oil greasy filth de-oiling agent, composition and the preparation method is as follows:
Take first 30% neopelex, 10% nonylphenol polyoxyethylene ether, 5% ethylenediamine tetra-acetic acid
Disodium, 1% oxalic acid, 54% water, which are mixed to dissolve, is made compound surfactant.Then take 20% compounding surface living
Property agent, 15% sodium metasilicate；8% ethylene glycol；2% sodium peroxydisulfate；0.5% triethanolamine；54.5% water mixes together
Close 30 minutes acquisition de-oiling agents of stirring.
100g rolling greasy filth is taken to mix with above-mentioned solution, solid-liquid mass ratio 1:5 stirs 2h at 80 DEG C, by mixed liquor
It is centrifuged to obtain grease mud three-phase；It outwells upper solution and separates oily mutually with water phase, oily mutually to be refined, water phase to it
It is recyclable to be used as solvent；
Lower layer's solid residue is mixed with de-oiling agent mass ratio 1:5 by residue, stirs 6h at 60 DEG C, by mixed liquor carry out from
Heart separation, repeats the above steps, until content of organics is lower than 3wt% in residue after centrifugation；
It uses clear water to carry out rinsing residue until iron powder can be obtained after 110 DEG C of dryings for neutrality, tests in iron powder and contain
Oil mass 2.1%, iron powder specific surface area are 96m2/g。
Claims (7)
1. a kind of de-oiling agent for cleaning waste rolling oil greasy filth, which is characterized in that the de-oiling agent component and weight percentage are as follows:
Compound surfactant 15%-30%；Sodium metasilicate 10%-20%；Polyalcohol 5%-10%；Sodium peroxydisulfate 2%-5%；Three ethyl alcohol
Amine 0.2%-1%；Water surplus.
2. de-oiling agent according to claim 1, which is characterized in that polyalcohol is ethylene glycol, glycerine, propylene glycol, fourth two
One of alcohol is a variety of.
3. de-oiling agent according to claim 2, which is characterized in that the surfactant main component percentage by weight of compounding
Than are as follows: neopelex 15%-30%, nonylphenol polyoxyethylene ether 10%-20%, disodium ethylene diamine tetraacetate 2%-
8%, oxalic acid 1%-3%, water surplus.
4. cleaning the application method of the de-oiling agent of waste rolling oil greasy filth described in claim 1, which is characterized in that including following step
It is rapid:
(1) rolling greasy filth is mixed with de-oiling agent first, solid-liquid mass ratio 1:5-15；
It (2) will rolling greasy filth and de-oiling agent stirring；
(3) mixed liquor is centrifuged to obtain solid-liquid two；
(4) it outwells upper solution to carry out separating oily phase and water phase, oil is mutually refined, and water phase is recyclable to be used as solvent；
(5) lower layer's residue rejoins fresh de-oiling agent and is washed, and the mass ratio of greasy filth and fresh de-oiling agent is 1:5, repeats
Step (2) (3) (4), until content of organics is lower than 3wt% in residue after centrifugation；
(6) clear water is used to carry out rinsing the residue finally obtained until for neutrality；
(7) residue obtained to rinsing is dried, and 110 DEG C of drying temperature, iron powder can be obtained.
5. the application method of cold rolling greasy filth de-oiling agent according to claim 4, it is characterised in that: stirring in the step (2)
Mixing temperature is 40-80 DEG C, mixing time 2-6 hours.
6. the application method of cold rolling greasy filth de-oiling agent according to claim 4, it is characterised in that: in the step (3), centrifugation
Separation revolving speed is 3000-5000r/min, and centrifugation time is 5-20 minutes.
7. the application method of cold rolling greasy filth de-oiling agent according to claim 4, it is characterised in that: in the step (6), rinsing
Temperature is 50-80 DEG C, and rinsing time is 3-6 hours.
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| CN201910173772.8A CN109675340B (en) | 2019-03-07 | 2019-03-07 | Deoiling agent for cleaning waste rolling oil sludge and use method thereof |
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| CN201910173772.8A CN109675340B (en) | 2019-03-07 | 2019-03-07 | Deoiling agent for cleaning waste rolling oil sludge and use method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110863111A (en) * | 2019-12-16 | 2020-03-06 | 中锗科技有限公司 | Method for recovering germanium from germanium single crystal multi-wire cutting processing oil germanium mixture |
| CN112479518A (en) * | 2020-11-30 | 2021-03-12 | 华东理工大学 | Comprehensive treatment process of cold-rolled aged oil sludge |
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| CN109675340B (en) | 2021-12-14 |
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