CN105271466B - Oil-containing dross dehydration agent and preparation method thereof - Google Patents
Oil-containing dross dehydration agent and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to field of environment engineering, and in particular to a kind of oil-containing dross dehydration agent, be made up of the raw material of following mass fraction：200~5000 parts of 1 part of reverse-phase emulsifier, 0.5~5.0 part of high polymer coagulant, 0.01~5 part of pH adjusting agent and water.Reverse-phase emulsifier is polycation quaternary reverse-phase emulsifier；The molecular weight of macromolecule cation polyacrylamide is between 600~20,000,000, and cationic degree is between 10%~35%.Compound dross dehydration agent provided by the invention, dewatering efficiency is high, and cost is cheap, and the scum silica frost viscosity after dehydration is low, and dehydration rate preferably resolves the problem of sewage treatment plant's scum silica frost is more than needed, handled available for the minimizing of oil plant oil-containing dross up to 40%~60%.The present invention also provides a kind of preparation method of oil-containing dross dehydration agent, and technique is simple, is easy to industrialized production.
Description
Technical field
The invention belongs to field of environment engineering, and in particular to a kind of oil-containing dross dehydration agent and preparation method thereof.
Background technology
The oil removal treatment of domestic oil refining enterprises oil-polluted water typically uses oil removal, one-level flotation and secondary floatation work at present
Skill.Oil-containing dross is a kind of end discarded object caused by air flotation cell in the processing procedure of oil-polluted water.Air supporting is that one kind has
The solid-liquid separating method of effect, it is gas-solid absorption and the combined process of solid- liquid separation.It is by pressure air-dissolving tank that air is molten
It is in saturation state in Xie Yushui, when water is passed through floation tank, pressure declines suddenly, and the air dissolved in water discharges countless micro- gas
Bubble, the solid or liquid particle of bubble and waste water Midst density close to water are adhered to, form the air float body that density is less than water, and
The water surface is floated up in the presence of buoyancy and carries out solid-liquid or liquid-liquid separation.Various negatively charged suspended particulates (including oil emulsion,
Free elaioleucite), form flocculation group by adding flocculant (generally aluminium polychloride, bodied ferric sulfate).During air supporting,
Micro-bubble mutually adheres to flocculation group, produces Float upward function because density is less than water and forms " water-gas-solid " three-phase mixture
System, it is set to be separated from the water away in the pollutant of suspended state, the product of separation becomes oil-containing dross.
Oil-containing dross is the flocculation group of various particles, water and bubble formation, and in semi-solid state, viscosity is big, poor fluidity.
Its main component is various chemical agents, various surfactants, flocculant, oil emulsion, dispersed oil, heavy oil component, fine sand
And substantial amounts of secondary clay mineral, together, emulsification flocculation is serious, and its settling property extreme difference, dehydration is very for various coagulation of materials
Difficulty, and its moisture content is high, typically between 90%~99%.
The scum treatment method commonly used both at home and abroad at present, is to mix refining using delayed coking unit.Mixing smelting method mainly has two
Kind：First, scum silica frost is made into coke drum quench oil；Second, gasification separation is carried out to scum silica frost using coke drum waste heat.Second method is
Scum silica frost is entered from coke drum rising pouring in high-temperature coke cooling procedure, as small feedwater cooling down high-temperature coke；Utilize the height of coke
Oil ingredient heating evaporation olefiant gas therein is escaped into contact cooling system by warm waste heat from tower top；Solid impurity then adsorbs
In coke layer surface, and enter Jiao Chi with high pressure decoking process and turn into coke product, so as to realize closed environmental protection treatment scum silica frost
Purpose.Scum silica frost processing cost has not only been saved using the method, the oil in scum silica frost can also be obtained to effective recovery profit
With, and increase the yield of coke, therefore, the processing method is used by most refinery.
With the increase year by year of oil plant crude runs, and crude quality tends in poor quality, heaviness, in sewage
Inorganic matter, organic species content of material are significantly increased, and scum silica frost amount also increases year by year caused by air flotation cell.Simultaneously, coking
The scum silica frost amount that device is handled every year is certain, and so some scum silica frost can not be handled, and outward transport processing can not only produce two
It is secondary to pollute and be possible to pollution transportation phenomenon occur；And scum silica frost enters coking processing, moisture contained therein becomes after being vaporized
Into sour water, it is necessary to consume a certain amount of low-pressure steam in follow-up double tower strips processing procedure, therefore, scum silica frost is aqueous
More, the quantity of steam of consumption is bigger, and energy consumption is higher.So scum silica frost is entered on the premise of scum silica frost has good fluidity
Row minimizing dewater treatment.
The existing inorganic agent function phase for dross dehydration is to single：Some demulsifications are good, but flocculating effect is poor；
The shortcomings of some flocculating effects are good, but sinking speed is slow, the meeting also having cause secondary pollution, and some effects are good, but cost
It is expensive.Chinese patent CN101367600A discloses a kind of additive for sludge dewatering, and wherein additive includes weight ratio
It is the 1.42-2.07% of sludge Solid content quaternary ammonium salt cationic surfactant, weight than the 4.92- for sludge Solid content
10.18% auxiliary agent of flocculant, weight than the 5-10% for sludge Solid content, auxiliary agent are the culture medium after edible mushroom harvesting.
The medicament of use is mainly surfactant, flocculant and inorganic salts auxiliary agent, and additive amount of medicament is larger and has more inorganic
Thing, ash content can be increased, calorific value declines.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of oil-containing dross dehydration agent, dewatering efficiency is high, into
This is cheap, and the scum silica frost viscosity after dehydration is low, solves the problems, such as that sewage treatment plant's scum silica frost is more than needed, subtracts available for oil plant oil-containing dross
Quantification treatment；The present invention also provides a kind of preparation method of oil-containing dross dehydration agent, and technique is simple, is easy to industrialized production.
Oil-containing dross dehydration agent of the present invention, is made up of the raw material of following mass fraction：
1 part of reverse-phase emulsifier, 0.5~5.0 part of high polymer coagulant, 0.01~5 part of pH adjusting agent and water 200~5000
Part.
Described oil-containing dross dehydration agent, is preferably made up of the raw material of following mass fraction：
500~3500 parts of 1 part of reverse-phase emulsifier, 0.5~3.0 part of high polymer coagulant, 0.1~5 part of pH adjusting agent and water.
Wherein：
Reverse-phase emulsifier is polycation quaternary reverse-phase emulsifier.Described polycation quaternary rp demulsification
It by epoxychloropropane and dimethylamine is monomer that agent, which is, with the reaction of organic amine crosslinking agent made from a kind of epoxychloropropane-diformazan
Amine polymer.
Polycation quaternary reverse-phase emulsifier preparation method is：Epoxychloropropane, drop are added dropwise in dimethylamine
Organic amine crosslinking agent is added after adding, is warming up to 75~85 DEG C, 6~10h of isothermal reaction, after completion of the reaction through absolute ethyl alcohol
Purify and be dried in vacuo to obtain polycation quaternary reverse-phase emulsifier；Epoxychloropropane, dimethylamine and organic amine crosslinking
The ratio between amount of material of agent is 1:1~2:0.01~0.1；Organic amine crosslinking agent is methylamine, ethamine, hexamethylene diamine, tetramethyl second
One or more of mixtures in diamines, n-butylamine, lauryl amine, preferably hexamethylene diamine and n-butylamine.
Polycation quaternary reverse-phase emulsifier preparation method is specially：Agitator, thermometer, reflux condensation mode will be housed
Pipe and the four-hole boiling flask of constant pressure funnel are placed in 45~55 DEG C of water-bath, add dimethylamine, ring is slowly added dropwise by constant pressure funnel
Oxygen chloropropane, crosslinking agent is added after being added dropwise, then heat to 75~85 DEG C, 6~10h of isothermal reaction, obtain synthetic product.
Product purifies through absolute ethyl alcohol and is dried in vacuo to obtain thick liquid, i.e. polycation quaternary reverse-phase emulsifier.
The high polymer coagulant is macromolecule cation polyacrylamide.The molecule of macromolecule cation polyacrylamide
Amount between 600~20,000,000, preferably 8,000,000~16,000,000, cationic degree between 10%~35%, preferably 15%~
35%, macromolecule cation polyacrylamide is purchased in market.High polymer coagulant more preferably molecular weight is 14,000,000, and cationic degree is
25% polyacrylamide.
The pH adjusting agent is one or more of mixing in sodium hydroxide, calcium oxide, calcium hydroxide or potassium hydroxide
Thing, preferably sodium hydroxide.
The preparation method of described oil-containing dross dehydration agent, comprises the following steps：
Add water in reactor, in the case of stirring, add reverse-phase emulsifier, after dissolving, add flocculating polymer
Agent, rising temperature for dissolving, it is eventually adding pH adjusting agent and is adjusted to pH to 7~14, product is obtained after cooling.
The preparation method of described oil-containing dross dehydration agent, specifically includes following steps：
Add water in reactor, be heated to 50~60 DEG C, in the case of stirring, add reverse-phase emulsifier, after dissolving,
High polymer coagulant is added, 80~90 DEG C of dissolvings is warming up to, is eventually adding pH adjusting agent and is adjusted to pH to 7~14, obtained after cooling
Product.
It is eventually adding pH adjusting agent and is preferably adjusted to pH value between 10~13.
In use, addition of the dehydrating agent in oil-containing dross is 10~1000mg/L, preferably 10~500mg/L.
In summary, the present invention has advantages below：
(1) compound dross dehydration agent provided by the invention, dewatering efficiency is high, and for dehydration rate up to 40%~60%, cost is low
Honest and clean, the scum silica frost viscosity after dehydration is low, preferably resolves the problem of sewage treatment plant's scum silica frost is more than needed, contains oil float available for oil plant
Slag minimizing is handled.
(2) compound dross dehydration agent demulsification ability provided by the invention is strong, flocculating effect is good, secondary pollution is small, cost is low
Scum silica frost viscosity after honest and clean, wide adaptability, dehydration is low.
(3) compound dross dehydration agent provided by the invention can significantly improve scum silica frost dewatering and cost it is relatively low,
It can add simultaneously or step by step, use easy to spread.
(4) it is big to solve sewage treatment plant's generation scum silica frost amount by the present invention, it is difficult to the problem of processing.
(5) present invention also provides a kind of preparation method of oil-containing dross dehydration agent, and technique is simple, is easy to industrialized production.
Embodiment
With reference to embodiment, the present invention will be further described.
Embodiment 1
Four-hole boiling flask equipped with agitator, thermometer, reflux condensing tube and constant pressure funnel is placed in 45 DEG C of water-bath, added
Enter dimethylamine, epoxychloropropane be slowly added dropwise by constant pressure funnel, hexamethylene diamine is added after being added dropwise, then heat to 75 DEG C,
Isothermal reaction 6h, obtains synthetic product.It is 1 to control the ratio between amount of material of epoxychloropropane, dimethylamine and hexamethylene diamine:1.5:
0.05.Product purifies through absolute ethyl alcohol and is dried in vacuo to obtain thick liquid, i.e. polycation quaternary rp demulsification
Agent A1。
500kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A10.5kg, after being completely dissolved, addition molecular weight is 14,000,000, the cation polypropylene acyl that cationic degree is 25%
Amine 1.5kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 11.5 ± 0.5 to be eventually adding NaOH0.02kg regulation pH value,
Dehydrating agent 1 is obtained after cooling.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 1, addition 100mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 59.4%.
Embodiment 2
Four-hole boiling flask equipped with agitator, thermometer, reflux condensing tube and constant pressure funnel will be placed in 40 DEG C of water-bath,
Dimethylamine is added, epoxychloropropane is slowly added dropwise by constant pressure funnel, n-butylamine is added after being added dropwise, then heats to 85
DEG C, isothermal reaction 7h, obtain synthetic product.It is 1 to control the ratio between amount of material of epoxychloropropane, dimethylamine and n-butylamine:2:
0.1.Product purifies through absolute ethyl alcohol and is dried in vacuo to obtain thick liquid, i.e. polycation quaternary reverse-phase emulsifier
A2。
500kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A20.5kg, after being completely dissolved, it is 14,000,000 to add molecular weight, and cationic degree is 25% cation polypropylene acyl
Amine 1.5kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 11.5 ± 0.5 to be eventually adding NaOH0.02kg regulation pH value,
Dehydrating agent 2 is obtained after cooling.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 2, addition 100mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 57.8%.
Embodiment 3
Four-hole boiling flask equipped with agitator, thermometer, reflux condensing tube and constant pressure funnel is placed in 45 DEG C of water-bath, added
Enter dimethylamine, epoxychloropropane be slowly added dropwise by constant pressure funnel, lauryl amine is added after being added dropwise, then heat to 80 DEG C,
Isothermal reaction 8h, obtains synthetic product.It is 1 to control the ratio between amount of material of epoxychloropropane, dimethylamine and lauryl amine:1:
0.01.Product purifies through absolute ethyl alcohol and is dried in vacuo to obtain thick liquid, i.e. polycation quaternary rp demulsification
Agent A3。
500kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A30.5kg, after being completely dissolved, it is 14,000,000 to add molecular weight, and cationic degree is 25% cation polypropylene acyl
Amine 1.5kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 11.5 ± 0.5 to be eventually adding NaOH0.02kg regulation pH value,
Dehydrating agent 3 is obtained after cooling.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 3, addition 100mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 42.8%.
Embodiment 4
1000kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A10.5kg, after being completely dissolved, it is 12,000,000 to add molecular weight, and cationic degree is 18% cation polypropylene acyl
Amine 1kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 12.5 ± 0.5 to be eventually adding KOH0.5kg regulation pH value, cooling
Dehydrating agent 4 is obtained afterwards.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 4, addition 600mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 40.7%.
Embodiment 5
1000kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A10.2kg, after being completely dissolved, it is 6,000,000 to add molecular weight, and cationic degree is 10% PAMC
0.2kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 10.5 ± 0.5 to be eventually adding CaO0.01kg regulation pH value, cold
But dehydrating agent 5 is obtained afterwards.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 5, addition 800mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 43.6%.
Embodiment 6
1000kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A11kg, after being completely dissolved, it is 8,000,000 to add molecular weight, and cationic degree is 20% PAMC
0.5kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, be eventually adding Ca (OH)25kg regulation pH value is 13.5 ± 0.5, cold
But dehydrating agent 6 is obtained afterwards.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 6, addition 500mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 50.1%.
Embodiment 7
1000kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A20.5kg, after being completely dissolved, it is 16,000,000 to add molecular weight, and cationic degree is 35% cation polypropylene acyl
Amine 1kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 12.5 ± 0.5 to be eventually adding KOH0.5kg regulation pH value, cooling
Dehydrating agent 7 is obtained afterwards.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 7, addition 1000mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 45.6%.
Embodiment 8
1000kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A20.2kg, after being completely dissolved, it is 18,000,000 to add molecular weight, and cationic degree is 20% cation polypropylene acyl
Amine 0.2kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 10.5 ± 0.5 to be eventually adding CaO0.01kg regulation pH value,
Dehydrating agent 8 is obtained after cooling.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 8, addition 300mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 47.4%.
Embodiment 9
1000kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A21kg, after being completely dissolved, it is 20,000,000 to add molecular weight, and cationic degree is 15% PAMC
0.5kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, be eventually adding Ca (OH)25kg regulation pH value is 13.5 ± 0.5, cold
But dehydrating agent 9 is obtained afterwards.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 9, addition 10mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 41.4%.
Comparative example 1
Four-hole boiling flask equipped with agitator, thermometer, reflux condensing tube and constant pressure funnel is placed in 45 DEG C of water-bath, added
Enter dimethylamine, epoxychloropropane be slowly added dropwise by constant pressure funnel, ethylenediamine is added after being added dropwise, then heat to 80 DEG C,
Isothermal reaction 8h, obtains synthetic product.It is 1 to control the ratio between amount of material of epoxychloropropane, dimethylamine and ethylenediamine:1.5:
0.05.Product purifies through absolute ethyl alcohol and is dried in vacuo to obtain thick liquid, i.e. polycation quaternary rp demulsification
Agent A4。
500kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A40.5kg, after being completely dissolved, it is 14,000,000 to add molecular weight, and cationic degree is 25% cation polypropylene acyl
Amine 1.5kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 11.5 ± 0.5 to be eventually adding NaOH0.02kg regulation pH value,
Dehydrating agent 10 is obtained after cooling.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 10, addition 100mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 34.5%.
Comparative example 2
Four-hole boiling flask equipped with agitator, thermometer, reflux condensing tube and constant pressure funnel is placed in 45 DEG C of water-bath, added
Enter dimethylamine, epoxychloropropane is slowly added dropwise by constant pressure funnel, add diethylenetriamine after being added dropwise, then heat to 75
DEG C, isothermal reaction 10h, obtain synthetic product.Control epoxychloropropane, the ratio between amount of material of dimethylamine and diethylenetriamine are
1:1.5:0.05.Product purifies through absolute ethyl alcohol and is dried in vacuo to obtain thick liquid, i.e. polycation quaternary is anti-
Phase demulsifier A5。
500kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A50.5kg, after being completely dissolved, it is 14,000,000 to add molecular weight, and cationic degree is 25% cation polypropylene acyl
Amine 1.5kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 11.5 ± 0.5 to be eventually adding NaOH0.02kg regulation pH value,
Dehydrating agent 11 is obtained after cooling.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 11, addition 100mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 28.7%.
Comparative example 3
Four-hole boiling flask equipped with agitator, thermometer, reflux condensing tube and constant pressure funnel is placed in 45 DEG C of water-bath, added
Enter dimethylamine, epoxychloropropane is slowly added dropwise by constant pressure funnel, add triethylene tetramine after being added dropwise, then heat to 80
DEG C, isothermal reaction 8h, obtain synthetic product.Control epoxychloropropane, the ratio between amount of material of dimethylamine and triethylene tetramine are
1:1.5:0.05.Product purifies through absolute ethyl alcohol and is dried in vacuo to obtain thick liquid, i.e. polycation quaternary is anti-
Phase demulsifier A6。
500kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A60.5kg, after being completely dissolved, it is 14,000,000 to add molecular weight, and cationic degree is 25% cation polypropylene acyl
Amine 1.5kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 11.5 ± 0.5 to be eventually adding NaOH0.02kg regulation pH value,
Dehydrating agent 12 is obtained after cooling.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 12, addition 100mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 30.7%.
Comparative example 4
1000kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A11kg, after being completely dissolved, it is 13,000,000 to add molecular weight, and cationic degree is 11% PAMC
0.5kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 1.5 ± 0.5 to be eventually adding sulphur acid for adjusting pH value, after cooling
Dehydrating agent 13.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 9, addition 200mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 17.8%.
Comparative example 5
1000kg water is added in reactor, is heated to 50 DEG C, in the case of stirring, it is anti-to add cationic quaternary ammonium salt form
Phase demulsifier A21kg, after being completely dissolved, it is 5,000,000 to add molecular weight, and cationic degree is 8% PAMC
0.5kg, continue stirring after being warming up to 80 DEG C to being completely dissolved, it is 12.5 ± 0.5 to be eventually adding KOH0.5kg regulation pH value, cooling
Dehydrating agent 14 is obtained afterwards.
Certain refinery's moisture content is 95.2% scum silica frost, adds dehydrating agent 9, addition 10mg/L, after stirring, through naturally heavy
Drop, dehydration rate reach 21.6%.
Claims (4)
- A kind of 1. oil-containing dross dehydration agent, it is characterised in that：Described oil-containing dross dehydration agent be used for handle oil-containing dross, by with The raw material composition of lower mass fraction：200~5000 parts of 1 part of reverse-phase emulsifier, 0.5~5.0 part of high polymer coagulant, 0.01~5 part of pH adjusting agent and water；Reverse-phase emulsifier is polycation quaternary reverse-phase emulsifier；Polycation quaternary reverse-phase emulsifier preparation method is：Epoxychloropropane is added dropwise in dimethylamine, after being added dropwise Add organic amine crosslinking agent, be warming up to 75~85 DEG C, 6~10h of isothermal reaction, after completion of the reaction through absolute ethyl alcohol purify and it is true Sky is dried to obtain polycation quaternary reverse-phase emulsifier；The material of epoxychloropropane, dimethylamine and organic amine crosslinking agent The ratio between amount be 1:1~2:0.01~0.1；Organic amine crosslinking agent is methylamine, ethamine, hexamethylene diamine, tetramethylethylenediamine, positive fourth One or more of mixtures in amine, lauryl amine；The high polymer coagulant is macromolecule cation polyacrylamide；The molecular weight of macromolecule cation polyacrylamide is between 600 ~ 20,000,000, and cationic degree is between 10% ~ 35%；The pH adjusting agent is one or more of mixtures in sodium hydroxide, calcium oxide, calcium hydroxide or potassium hydroxide；Add pH adjusting agent and be adjusted to pH to 10 ~ 13.
- 2. oil-containing dross dehydration agent according to claim 1, it is characterised in that：It is made up of the raw material of following mass fraction：500~3500 parts of 1 part of reverse-phase emulsifier, 0.5~3.0 part of high polymer coagulant, 0.1~5 part of pH adjusting agent and water.
- A kind of 3. preparation method of the oil-containing dross dehydration agent described in claim 1 or 2, it is characterised in that：Comprise the following steps：Add water in reactor, in the case of stirring, add reverse-phase emulsifier, after dissolving, add high polymer coagulant, rise Temperature dissolving, is eventually adding pH adjusting agent and is adjusted to pH to 10 ~ 13, product is obtained after cooling.
- 4. the preparation method of oil-containing dross dehydration agent according to claim 3, it is characterised in that：Comprise the following steps：Add water in reactor, be heated to 50~60 DEG C, in the case of stirring, add reverse-phase emulsifier, after dissolving, add High polymer coagulant, 80~90 DEG C of dissolvings are warming up to, are eventually adding pH adjusting agent and are adjusted to pH to 10 ~ 13, product is obtained after cooling.
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| CN109110872A (en) * | 2018-08-30 | 2019-01-01 | 赵晴晴 | A kind of oilfield sewage demulsification water purification agent and preparation process |
| CN110257099A (en) * | 2019-06-21 | 2019-09-20 | 江苏新海石化有限公司 | A method of freshening being carried out to dross using coke drum |
| CN116253494B (en) * | 2023-02-08 | 2024-04-05 | 杭州尚善若水环保科技有限公司 | Special organic dehydrating agent for plate-and-frame filter press and preparation method thereof |
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| US4251410A (en) * | 1976-05-26 | 1981-02-17 | Sandoz Ltd. | Reaction products of a polyacrylamide formaldehyde, a secondary amine and an-nh group-containing functional derivative of an acid |
| US4614593A (en) * | 1985-03-28 | 1986-09-30 | Ethyl Corporation | Demulsification of oil-in-water emulsions |
| CN1955122A (en) * | 2005-10-26 | 2007-05-02 | 中国石油化工股份有限公司 | Method for treating oil-containing waste water |
| CN100343183C (en) * | 2006-06-06 | 2007-10-17 | 山东大学 | Polyepichlorohydrin-dimethylamine organic polymer coargulator and its preparation technology |
| CN100594189C (en) * | 2007-04-04 | 2010-03-17 | 中国石油化工股份有限公司 | Method for treatment of oil-bearing waste water |
| CN101367600B (en) * | 2008-09-17 | 2011-06-29 | 广州绿由工业弃置废物回收处理有限公司 | Additive for sludge dewatering and sludge dewatering method |
| CN102198969B (en) * | 2010-03-22 | 2013-07-03 | 天津大港油田科远石油工程有限责任公司 | Oil-removing compound |
| CN102897887A (en) * | 2012-11-09 | 2013-01-30 | 天津亿利科能源科技发展股份有限公司 | Polymer-containing oil-field wastewater treating agent |
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