CN102173545B - Oily sludge thermochemical separating agent and using method thereof - Google Patents
Oily sludge thermochemical separating agent and using method thereof Download PDFInfo
- Publication number
- CN102173545B CN102173545B CN 201010601322 CN201010601322A CN102173545B CN 102173545 B CN102173545 B CN 102173545B CN 201010601322 CN201010601322 CN 201010601322 CN 201010601322 A CN201010601322 A CN 201010601322A CN 102173545 B CN102173545 B CN 102173545B
- Authority
- CN
- China
- Prior art keywords
- organic cation
- cation molecule
- molecule film
- oily sludge
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention discloses an oily sludge thermochemical separating agent which is prepared by mixing 0.5-2 parts by weight of diethylamine organic cation molecular film agent, 1-2 parts by weight of dimethylamine organic cation molecular film agent, 0.5-1.5 parts by weight of diisopropylamine organic cation molecular film agent, 0.5-2 parts by weight of butyl amine organic cation molecular film agent and 0.5-1 part by weight of triethylamine organic cation molecular film agent. The oily sludge thermochemical separating agent disclosed by the invention adopts cheap raw materials, is simple to prepare, has stable properties, and can be applied to oily sludge treatment, particularly to treatment of oil tank sediment, and realizes a good oil washing effect, wherein the residual oil rate of the tank oily sediment can be reduced to 0.5% in comparison with the existing separating agent.
Description
Technical field
The invention belongs to oily sludge separation, recovery and application technology as the second resource field, be specifically related to a kind of separating agent and method of from oil greasy filth, separating oil.
Background technology
The main source of oily sludge has: oilfield exploitation, oil-gas gathering and transportation and sewage-farm.Oily sludge is a kind of important pollutent and source of pollution, and is very big to the harm of environment; Reclaiming if oily sludge is carried out resource utilization, will be a kind of extremely important resource.At present, domestic treatment process to oily sludge mainly contains burning disposal, solidification treatment, biological treatment, coking processing, SX processing, re-injection processing, and these methods generally have long processing period, shortcomings such as the processing costs height and the wasting of resources.
The chemical heat washing method is the process for treating oil-containing sludge that country such as the U.S., Britain, Holland, Canada extensively adopts, and can be that to be washed till residual oil content be 0.3% for 30% oily sludge with oil-contg.Domestic hot washing method is handled used chemical separation agent mainly is alkaline inorganics or tensio-active agent, and residual oil content is still very high, and the residual oil content of oily sludge is below 3%.
Summary of the invention
A technical problem to be solved by this invention is to overcome the shortcoming that used chemical separation agent exists in the above-mentioned chemical heat washing methods, and what provide that a kind of raw material is inexpensive, product property stable, washing oil is effective contains mud thermochemistry separating agent.
Another technical problem to be solved by this invention is for oily sludge thermochemistry separating agent a kind of method of use of handling oily sludge to be provided.
Solve the problems of the technologies described above the technical scheme that adopted composite the processing of organic cation molecule film by following proportion by weight:
0.5～2 part of diethylamine organic cation molecule film
1～2 part of n n dimetylaniline organic cation molecule film
0.5～1.5 part of Diisopropylamine organic cation molecule film
0.5～2 part of dibutylamine organic cation molecule film
0.5～1 part of triethylamine organic cation molecule film
Above-mentioned organic cation molecule film is obtained by following preparation method:
In nitrogen atmosphere, the adding massfraction is 50% the epoxy chloropropane aqueous solution in there-necked flask, and there-necked flask is placed water-bath; The control bath temperature is 0 ℃, adds massfraction and be 50% sodium sulfite aqueous solution and massfraction and be 50% persulfate aqueous solution, stirring; Using constant pressure funnel to drip massfraction with 2～3 droplets/second speed is 40% the organic amine aqueous solution, and the mol ratio of epoxy chloropropane and organic amine is 1: 0.67, and the mass ratio of S-WAT and Potassium Persulphate is 1: 1; The quality sum of S-WAT and Potassium Persulphate is 0.8% of epoxy chloropropane and an organic amine total mass, dropwises back warming-in-water to 65 ℃, isothermal reaction 5 hours; 40 ℃ of underpressure distillation to absence of liq are dripped; Place 45 ℃ of vacuum-dryings of vacuum drying oven 4 hours, use washing with acetone, the elimination deposition; Boil off acetone solvent, be prepared into organic cation molecule film.Wherein organic amine is that diethylamine prepares diethylamine organic cation molecule film; Organic amine is that n n dimetylaniline prepares n n dimetylaniline organic cation molecule film; Organic amine is that Diisopropylamine prepares Diisopropylamine organic cation molecule film; Organic amine is that dibutylamine prepares dibutylamine organic cation molecule film, and organic amine is that triethylamine prepares triethylamine organic cation molecule film.
Oily sludge thermochemistry separating agent the best of the present invention is by composite the processing of organic cation molecule film of following proportion by weight:
1 part of diethylamine organic cation molecule film
1 part of n n dimetylaniline organic cation molecule film
1 part of Diisopropylamine organic cation molecule film
1 part of dibutylamine organic cation molecule film
1 part of triethylamine organic cation molecule film
The method of use of oily sludge thermochemistry separating agent of the present invention in handling oily sludge is following:
1, preparation molecular film solution
Oily sludge thermochemistry separating agent is mixed with tap water, be mixed with massfraction and be 0.8% the molecular film aqueous solution.
2, washing
Adding the 200mL tap water by per 100 gram oily sludges, is that 50 ℃ tap water places Device for washing oil with oily sludge and temperature, and 70 ℃ of stirring in water bath 30 minutes left standstill 16 hours, emitted mud, sand, water from the Device for washing oil bottom.
3, alkali cleaning
The temperature of adding and step 2 equal volume is 50 ℃ a tap water in Device for washing oil, and using yellow soda ash to regulate the pH value is 8～10,70 ℃ of stirring in water bath 30 minutes, leaves standstill 4 hours, emits mud, sand, water from the Device for washing oil bottom.
4, oily sludge thermochemistry separating agent is washed
The adding massfraction is 0.8% the molecular film aqueous solution in Device for washing oil; Its add-on is identical with the volume of tap water in the step 2, and 70 ℃ of stirring in water bath 30 minutes left standstill 4 hours; Emit mud, sand, water from the Device for washing oil bottom, collect isolated oil in the Device for washing oil.
5, silt aftertreatment
The silt of emitting from the Device for washing oil bottom in step 2～4 is placed Device for washing oil; The massfraction of adding and step 2 tap water equal volume is 0.8% the molecular film aqueous solution; Using yellow soda ash to regulate the pH value is 9,70 ℃ of stirring in water bath 30 minutes, leaves standstill 4 hours; Emit mud, sand, water from the Device for washing oil bottom, collect isolated oil in the Device for washing oil.
The present invention is composite with the organic cation molecule film of different organic amines, obtains oily sludge thermochemistry separating agent, and this separating agent is raw materials used inexpensive; The preparation method is simple, and stable in properties, can be used for handling oily sludge; The particularly processing of oil tank bed mud; Washing oil is effective, compares with existing separating agent, and the residual oil content of oily sludge is minimum reduces to 0.5%.
Embodiment
To further explain of the present invention, but the invention is not restricted to these embodiment below in conjunction with embodiment.
Embodiment 1
100g is an example with preparation oily sludge thermochemistry separating agent, and is raw materials used and the quality proportioning is following:
Diethylamine organic cation molecule film 20g
N n dimetylaniline organic cation molecule film 20g
Diisopropylamine organic cation molecule film 20g
Dibutylamine organic cation molecule film 20g
Triethylamine organic cation molecule film 20g
Above-mentioned diethylamine organic cation molecule film prepares as follows:
In nitrogen atmosphere, adding 69.4g massfraction is 50% the epoxy chloropropane aqueous solution in the 250mL there-necked flask, and there-necked flask is placed water-bath; The control bath temperature is 0 ℃, adds the 0.424g massfraction and be 50% sodium sulfite aqueous solution and 0.424g massfraction and be 50% persulfate aqueous solution, stirring; Using constant pressure funnel to drip the 45.75g massfraction with 2～3 droplets/second speed is 40% diethylamine aqueous solution, and the mol ratio of epoxy chloropropane and diethylamine is 1: 0.67, and the quality sum of the S-WAT of adding and Potassium Persulphate is 0.8% of epoxy chloropropane and a diethylamine total mass; After dropwising with warming-in-water to 65 ℃; Isothermal reaction 5 hours is dripped 40 ℃ of underpressure distillation to absence of liq with Rotary Evaporators, places 45 ℃ of vacuum-dryings of vacuum drying oven 4 hours; Use washing with acetone; The elimination deposition boils off acetone solvent, is prepared into diethylamine organic cation molecule film.
The preparation method of n n dimetylaniline organic cation molecule film, Diisopropylamine organic cation molecule film, dibutylamine organic cation molecule film, triethylamine organic cation molecule film is identical with the preparation method of diethylamine organic cation molecule film; It is that to use massfraction respectively be that 40% dimethylamine agueous solution, massfraction are that 40% the Diisopropylamine aqueous solution, massfraction are that 40% the dibutylamine aqueous solution or massfraction are 40% triethylamine aqueous solution replacement for 40% diethylamine diethylamine aqueous solution that organic cation molecule film is prepared massfraction in the process; The mole number of n n dimetylaniline, Diisopropylamine, dibutylamine or triethylamine is identical with the mole number of diethylamine, can prepare corresponding organic cation molecule film.
Take by weighing diethylamine organic cation molecule film and n n dimetylaniline organic cation molecule film, Diisopropylamine organic cation molecule film, dibutylamine organic cation molecule film, triethylamine organic cation molecule film by above-mentioned quality proportioning; Mix, promptly get oily sludge thermochemistry separating agent.
Be embodiment 2
100g is an example with preparation oily sludge thermochemistry separating agent, and is raw materials used and the quality proportioning is following:
Diethylamine organic cation molecule film 17.65g
N n dimetylaniline organic cation molecule film 29.40g
Diisopropylamine organic cation molecule film 17.65g
Dibutylamine organic cation molecule film 17.65g
Triethylamine organic cation molecule film 17.65g
Above-mentioned preparation oily sludge thermochemistry separating agent is processed by the raw material of following proportion by weight:
0.6 part of diethylamine organic cation molecule film
1 part of n n dimetylaniline organic cation molecule film
0.6 part of Diisopropylamine organic cation molecule film
0.6 part of dibutylamine organic cation molecule film
0.6 part of triethylamine organic cation molecule film
The preparation method of above-mentioned organic cation molecule film is identical with embodiment 1.
Embodiment 3
100g is an example with preparation oily sludge thermochemistry separating agent, and is raw materials used and the quality proportioning is following:
Diethylamine organic cation molecule film 13.64g
N n dimetylaniline organic cation molecule film 45.44g
Diisopropylamine organic cation molecule film 13.64g
Dibutylamine organic cation molecule film 13.64g
Triethylamine organic cation molecule film 13.64g
Above-mentioned preparation oily sludge thermochemistry separating agent is processed by the raw material of following proportion by weight:
0.6 part of diethylamine organic cation molecule film
2 parts of n n dimetylaniline organic cation molecule films
0.6 part of Diisopropylamine organic cation molecule film
0.6 part of dibutylamine organic cation molecule film
0.6 part of triethylamine organic cation molecule film
The preparation method of above-mentioned organic cation molecule film is identical with embodiment 1.
Embodiment 4
100g is an example with preparation oily sludge thermochemistry separating agent, and is raw materials used and the quality proportioning is following:
Diethylamine organic cation molecule film 16.67g
N n dimetylaniline organic cation molecule film 33.32g
Diisopropylamine organic cation molecule film 16.67g
Dibutylamine organic cation molecule film 16.67g
Triethylamine organic cation molecule film 16.67g
Above-mentioned preparation oily sludge thermochemistry separating agent is processed by the raw material of following proportion by weight:
0.5 part of diethylamine organic cation molecule film
1 part of n n dimetylaniline organic cation molecule film
0.5 part of Diisopropylamine organic cation molecule film
0.5 part of dibutylamine organic cation molecule film
0.5 part of triethylamine organic cation molecule film
The preparation method of above-mentioned organic cation molecule film is identical with embodiment 1.
Embodiment 5
100g is an example with preparation oily sludge thermochemistry separating agent, and is raw materials used and the quality proportioning is following:
Diethylamine organic cation molecule film 23.53g
N n dimetylaniline organic cation molecule film 23.53g
Diisopropylamine organic cation molecule film 17.65g
Dibutylamine organic cation molecule film 23.53g
Triethylamine organic cation molecule film 11.76g
Above-mentioned preparation oily sludge thermochemistry separating agent is processed by the raw material of following proportion by weight:
2 parts of diethylamine organic cation molecule films
2 parts of n n dimetylaniline organic cation molecule films
1.5 parts of Diisopropylamine organic cation molecule films
2 parts of dibutylamine organic cation molecule films
1 part of triethylamine organic cation molecule film
The preparation method of above-mentioned organic cation molecule film is identical with embodiment 1.
Embodiment 6
Oily sludge thermochemistry separating agent among the embodiment 1 is used for handling filling end greasy filth, and its concrete method of use is following:
1, obtain solution
Oily sludge thermochemistry separating agent is mixed with tap water, be mixed with massfraction and be 0.8% the molecular film aqueous solution.
2, washing
100g is irritated end greasy filth place Device for washing oil, add temperature and be 50 ℃ tap water 200mL, 70 ℃ of stirring in water bath 30 minutes left standstill 16 hours, emitted mud, sand, water from the Device for washing oil bottom.
3, alkali cleaning
Continuation adds temperature in Device for washing oil be 50 ℃ tap water 200mL, and using yellow soda ash to regulate the pH value is 9,70 ℃ of stirring in water bath 30 minutes, leaves standstill 4 hours, emits mud, sand, water from the Device for washing oil bottom.
4, oily sludge thermochemistry separating agent is washed
In Device for washing oil, add massfraction and be 0.8% molecular film aqueous solution 200mL, 70 ℃ of stirring in water bath 30 minutes left standstill 4 hours, emitted mud, sand, water from the Device for washing oil bottom, collected isolated oil in the Device for washing oil.
5, silt aftertreatment
The silt of emitting from the Device for washing oil bottom in step 2～4 is placed Device for washing oil; The adding massfraction is 0.8% molecular film aqueous solution 200mL; Using yellow soda ash to regulate the pH value is 9,70 ℃ of stirring in water bath 30 minutes, leaves standstill 4 hours; Emit mud, sand, water from the Device for washing oil bottom, collect isolated oil in the Device for washing oil.Through calculating, the residual oil content of irritating end greasy filth is 0.5%.
Embodiment 7
Oily sludge thermochemistry separating agent among the embodiment 2 is used for handling filling end greasy filth according to the method for use among the embodiment 6, and through calculating, the residual oil content of irritating end greasy filth is 1.5%.
Embodiment 8
Oily sludge thermochemistry separating agent among the embodiment 3 is used for handling filling end greasy filth according to the method for use among the embodiment 6, and through calculating, the residual oil content of irritating end greasy filth is 1.1%.
The comparative example 1
Be that 0.8% the molecular film aqueous solution is with isopyknic n n dimetylaniline organic cation molecule film (A), diethylamine organic cation molecule film (B), Diisopropylamine organic cation molecule film (C), dibutylamine organic cation molecule film (D) or triethylamine organic cation molecule film (E) replacement with massfraction among the embodiment 6; Handle according to treatment step identical among the embodiment 6 and condition respectively and irritate end greasy filth; Calculate the residual oil content of irritating end greasy filth, the result sees table 1.
The different separating agents of table 1 are handled the residual oil content behind the filling end greasy filth
| The molecular film kind | A | B | C | D | E | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Residual oil content (%) | 7.1 | 8.3 | 7.8 | 9.1 | 9.5 | 0.5 | 1.5 | 1.1 |
Visible by table 1, adopt n n dimetylaniline organic cation molecule film, diethylamine organic cation molecule film, Diisopropylamine organic cation molecule film, dibutylamine organic cation molecule film or the triethylamine organic cation molecule film of one-component to be used for handling the residual oil content of irritating end greasy filth all is used to handle filling end greasy filth according to the method for the embodiment of the invention 6 apparently higher than the oil-containing greasy filth thermochemistry separating agent of the embodiment of the invention 1～3 preparation residual oil content according to the method in the embodiment of the invention 6.
The comparative example 2
Oily sludge thermochemistry separating agent among the embodiment 1 is mixed with tap water, be mixed with massfraction and be 0.8% the molecular film aqueous solution.100g is irritated end greasy filth place Device for washing oil, add massfraction and be 0.8% molecular film aqueous solution 200mL, 70 ℃ of stirring in water bath 30 minutes left standstill 4 hours, emitted mud, sand, water from the Device for washing oil bottom, collected isolated oil in the Device for washing oil.Through calculating, the residual oil content of irritating end greasy filth is 6.5%, irritates the residual oil content 0.5% of end greasy filth in the embodiment 6, explain and adopts the inventive method to handle filling end greasy filth better effects if.
Claims (3)
1. oily sludge thermochemistry separating agent is characterized in that composite the processing of organic cation molecule film by following proportion by weight:
Above-mentioned organic cation molecule film is obtained by following preparation method:
In nitrogen atmosphere, the adding massfraction is 50% the epoxy chloropropane aqueous solution in there-necked flask, and there-necked flask is placed water-bath; The control bath temperature is 0 ℃, adds massfraction and be 50% sodium sulfite aqueous solution and massfraction and be 50% persulfate aqueous solution, stirring; Using constant pressure funnel to drip massfraction with 2～3 droplets/second speed is 40% the organic amine aqueous solution, and the mol ratio of epoxy chloropropane and organic amine is 1: 0.67, and the mass ratio of S-WAT and Potassium Persulphate is 1: 1; The quality sum of S-WAT and Potassium Persulphate is 0.8% of epoxy chloropropane and an organic amine total mass, dropwises back warming-in-water to 65 ℃, isothermal reaction 5 hours; 40 ℃ of underpressure distillation to absence of liq are dripped; Place 45 ℃ of vacuum-dryings of vacuum drying oven 4 hours, use washing with acetone, the elimination deposition; Boil off acetone solvent, be prepared into organic cation molecule film; Wherein organic amine is that diethylamine prepares diethylamine organic cation molecule film; Organic amine is that n n dimetylaniline prepares n n dimetylaniline organic cation molecule film; Organic amine is that Diisopropylamine prepares Diisopropylamine organic cation molecule film; Organic amine is that dibutylamine prepares dibutylamine organic cation molecule film, and organic amine is that triethylamine prepares triethylamine organic cation molecule film.
2. oily sludge thermochemistry separating agent according to claim 1 is characterized in that composite the processing of organic cation molecule film by following proportion by weight:
3. the described oily sludge thermochemistry of claim 1 separating agent method of use in handling oily sludge is characterized in that being made up of following step:
(1) preparation molecular film solution
Oily sludge thermochemistry separating agent is mixed with tap water, be mixed with massfraction and be 0.8% the molecular film aqueous solution;
(2) washing
Adding the 200mL tap water by per 100 gram oily sludges, is that 50 ℃ tap water places Device for washing oil with oily sludge and temperature, and 70 ℃ of stirring in water bath 30 minutes left standstill 16 hours, emitted mud, sand, water from the Device for washing oil bottom;
(3) alkali cleaning
The temperature of adding and step (2) equal volume is 50 ℃ a tap water in Device for washing oil, and using yellow soda ash to regulate the pH value is 8～10,70 ℃ of stirring in water bath 30 minutes, leaves standstill 4 hours, emits mud, sand, water from the Device for washing oil bottom;
(4) oily sludge thermochemistry separating agent is washed
The adding massfraction is 0.8% the molecular film aqueous solution in Device for washing oil; The volume of tap water is identical in its add-on and the step (2), and 70 ℃ of stirring in water bath 30 minutes left standstill 4 hours; Emit mud, sand, water from the Device for washing oil bottom, collect isolated oil in the Device for washing oil;
(5) silt aftertreatment
The silt of emitting from the Device for washing oil bottom in step (2)～(4) is placed Device for washing oil; The massfraction of adding and step (2) tap water equal volume is 0.8% the molecular film aqueous solution; Using yellow soda ash to regulate the pH value is 9,70 ℃ of stirring in water bath 30 minutes, leaves standstill 4 hours; Emit mud, sand, water from the Device for washing oil bottom, collect isolated oil in the Device for washing oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010601322 CN102173545B (en) | 2010-12-17 | 2010-12-17 | Oily sludge thermochemical separating agent and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010601322 CN102173545B (en) | 2010-12-17 | 2010-12-17 | Oily sludge thermochemical separating agent and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102173545A CN102173545A (en) | 2011-09-07 |
| CN102173545B true CN102173545B (en) | 2012-10-03 |
Family
ID=44516850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010601322 Expired - Fee Related CN102173545B (en) | 2010-12-17 | 2010-12-17 | Oily sludge thermochemical separating agent and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102173545B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396782B (en) * | 2013-07-12 | 2016-05-11 | 中国石油天然气股份有限公司 | A kind of expansion-resisting agent and preparation method thereof for acidifying |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117026A (en) * | 1995-07-03 | 1996-02-21 | 石油大学(北京) | Multi-function sewage treating agent and its prepn method |
| CN101362941A (en) * | 2008-09-05 | 2009-02-11 | 关俊华 | Nano molecule deposition film oil-displacing agent and preparation method thereof |
| KR20090020353A (en) * | 2007-08-23 | 2009-02-26 | 주식회사 리월드 | Methode and apparatus for sludge treatment |
| CN101805599A (en) * | 2010-04-16 | 2010-08-18 | 西安石油大学 | Crosslinked polycation oil displacement agent and preparation method thereof |
-
2010
- 2010-12-17 CN CN 201010601322 patent/CN102173545B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117026A (en) * | 1995-07-03 | 1996-02-21 | 石油大学(北京) | Multi-function sewage treating agent and its prepn method |
| KR20090020353A (en) * | 2007-08-23 | 2009-02-26 | 주식회사 리월드 | Methode and apparatus for sludge treatment |
| CN101362941A (en) * | 2008-09-05 | 2009-02-11 | 关俊华 | Nano molecule deposition film oil-displacing agent and preparation method thereof |
| CN101805599A (en) * | 2010-04-16 | 2010-08-18 | 西安石油大学 | Crosslinked polycation oil displacement agent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102173545A (en) | 2011-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101357992A (en) | Method for preparing stellate poly quaternary ammonium salt high efficient reverse-phase emulsifier | |
| CN104841421B (en) | A kind of carbon monoxide-olefin polymeric, preparation method and prepare the method for o-phenyl phenol using it | |
| CN105384263B (en) | Sulfamic acid modification of chitosan water antisludging agent and preparation method thereof | |
| CN105198181A (en) | Environment-friendly oil field sludge treating agent and preparation method thereof | |
| CN110041462A (en) | A kind of heat-resistant salt-resistant type amphiphilic macromolecule heavy crude thinner and preparation method thereof | |
| CN109504360B (en) | Thick oil viscosity reducer and preparation method and application thereof | |
| CN104829748A (en) | Water-soluble chitosan quaternary ammonium salt bactericide and preparation method thereof | |
| CN102173545B (en) | Oily sludge thermochemical separating agent and using method thereof | |
| CN101885839B (en) | Method for preparing blocked allyl polyether | |
| CN101570547B (en) | Method for processing glyphosate mother liquor | |
| CN111394084B (en) | Oil displacement agent and preparation and application thereof | |
| CN102516971A (en) | Block polyether zwitterionic heavy oil emulsified viscosity reducer and preparation method thereof | |
| CN107235529A (en) | A kind of degreaser handled for oil-contaminated water of oil field and preparation method thereof | |
| CN107337756B (en) | A kind of polystyrene type microballoon and preparation method thereof with polymerization inhibitor function | |
| CN111019750A (en) | Method for removing chlorine in waste engine oil by using strong-alkaline ionic liquid | |
| CN105026044B (en) | The recovery method of anionic fluorine-containing emulsifier | |
| CN113444237B (en) | Quaternized polyether reverse demulsifier and preparation method thereof | |
| CN1205131C (en) | Double-machine flocculant | |
| CN1733876A (en) | Processing method of trench oil from food and drink industry | |
| CN100404612C (en) | Preparation method of swelled vermiculite/ polyacrylic acid potassium- acrylamide high water absorption composite material | |
| CN1080854C (en) | Process for moving highly viscous petroleum products | |
| CN1868986A (en) | Method of producing vinylidene chloride and its device | |
| CN106830120B (en) | A kind of sewage-treating agent and its application with demulsification | |
| JP2005522189A5 (en) | ||
| CN1086914C (en) | Water insoluble polyquaternary phosphonium salt germicide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20151217 |
|
| EXPY | Termination of patent right or utility model |