CN104861111B - A kind of preparation method of water-in-oil emulsion - Google Patents
A kind of preparation method of water-in-oil emulsion Download PDFInfo
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- CN104861111B CN104861111B CN201510337892.9A CN201510337892A CN104861111B CN 104861111 B CN104861111 B CN 104861111B CN 201510337892 A CN201510337892 A CN 201510337892A CN 104861111 B CN104861111 B CN 104861111B
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Abstract
The present invention relates to a kind of preparation method of emulsion, comprise the following steps：（1）The preparation of aqueous phase：Acrylamide and acrylic acid are pressed 2：1 mixing, the solution that concentration is 38% is configured to water, then it is 7.5 to be neutralized to pH with liquid caustic soda, neutral temperature is no more than 25 DEG C, is then cooled with frozen water, when temperature is down to 20 DEG C, adds initiator, forms aqueous phase after reaction completely；（2）The preparation of oil phase：White oil and emulsifying agent S 20 are according to 8：1 ratio mixing；（3）Aqueous phase and oil phase are according to 3：1 ratio mixing；（4）Shearing；（5）Add initiator；（6）Demulsification：Reaction adds demulsifier after being fully completed, blowing after stirring 30 minutes.The emulsion prepared using the present invention belongs to water-in-oil emulsion, and having can directly be used by rp demulsification, operation scene with molten to water the inside, and compared with traditional handicraft, effective content is more than 30%；Molecular weight reaches 20,000,000 or so；Stability is good, it is not easy to degrades.
Description
Technical field
The present invention relates to a kind of water-in-oil emulsion, more particularly to a kind of preparation method of water-in-oil emulsion.
Background technology
Acrylamide is a kind of white crystal chemical substance, be produce polyacrylamide raw material, polyacrylamide
It is chain macromolecule compound, can, absorption formation affine with many materials because it has a variety of active groups
Hydrogen bond, mainly flocculate negatively charged colloid, has the function such as turbidity removal, decolouring, absorption and bonding, suitable for dyeing, papermaking,
The higher waste water of industry organic colloid content such as food, building, metallurgy, ore dressing, coal dust, oil field processing, aquatic products processing and fermentation
Processing, the dewater treatment especially suitable for municipal sewage, municipal sludge, paper mill sludge and other industrial sludges.
In the prior art, polyacrylamide is prepared into emulsion, it is molten to directly using in water, effective content 10% or so, point
Son amount is only millions of, and property is unstable, easily degraded.
The content of the invention
In order to solve in the prior art, emulsion effective content prepared by polyacrylamide is low, and stability is bad, easily degraded
The problems such as, the present invention provides a kind of preparation method of water-in-oil emulsion.
The technical solution adopted by the present invention is：
A kind of preparation method of water-in-oil emulsion, comprises the following steps：
（1）The preparation of aqueous phase：Acrylamide and acrylic acid are pressed 2：1 mixing, the solution that concentration is 38% is configured to water,
It is 7.5 to be neutralized to pH with liquid caustic soda again, and neutral temperature is no more than 25 DEG C, is then cooled with frozen water, when temperature is down to 20 DEG C, addition
Aqueous phase is formed after initiator I, completely reaction；
（2）The preparation of oil phase：White oil and emulsifying agent S-20 are according to 8：1 ratio mixing；
（3）Aqueous phase and oil phase are according to 3：1 ratio mixing；
（4）Shearing：Sheared after aqueous phase and oil phase mixing with cutter, while measure shear viscosity；
（5）Add initiator：When shear viscosity is 600, starts inflated with nitrogen, after inflated with nitrogen abundant deoxygenation in 30 minutes, add
Add initiator II；
（6）Demulsification：Reaction adds demulsifier after being fully completed, blowing after stirring 30 minutes.
Step（1）Described in initiator I be t-butyl hydroperoxide 100ppm, disodium ethylene diamine tetraacetate 300ppm and
Ammonium formate 2ppm.
Step（5）Described in nitrogen flow control in 40m3/h。
Step（5）Described in initiator II be sodium pyrosulfite, sodium pyrosulfite in addition temperature rise control 1 DEG C/
5min, it is no more than 50 DEG C with frozen water temperature control, final temperature when being reacted to 45 DEG C.
Step（6）Described in demulsifier be OP-10, addition 32kg/t.
The emulsifying agent S-20 is sorbitol anhydride laurate, is mainly used as emulsifying agent and wetting agent.
The condensation product of OP-10, a kind of industrial chemicals, alkyl phenol and oxirane, APES, have excellent
Level dyeing, emulsification, wetting, diffusion and antistatic behaviour, in high molecule emulsion polymerization, can be used as emulsifying agent.
Beneficial effects of the present invention are：The emulsion prepared using the present invention belongs to water-in-oil emulsion, has by rp demulsification,
Operation scene can directly be used with molten to water the inside, and compared with traditional handicraft, effective content is more than 30%；Molecular weight reaches 2000
Ten thousand or so；Stability is good, it is not easy to degrades.
Embodiment
A kind of preparation method of water-in-oil emulsion, comprises the following steps：
（1）The preparation of aqueous phase：Acrylamide and acrylic acid are pressed 2：1 mixing, the solution that concentration is 38% is configured to water,
It is 7.5 to be neutralized to pH with liquid caustic soda again, and neutral temperature is no more than 25 DEG C, is then cooled with frozen water, when temperature is down to 20 DEG C, addition
Aqueous phase is formed after initiator I, completely reaction, the initiator I includes t-butyl hydroperoxide, disodium ethylene diamine tetraacetate and first
Sour ammonium, the addition of t-butyl hydroperoxide is 100ppm, and the addition of disodium ethylene diamine tetraacetate is 300ppm, ammonium formate
Addition is 2ppm；
（2）The preparation of oil phase：White oil and emulsifying agent S-20 are according to 8：1 ratio mixing；
（3）Aqueous phase and oil phase are according to 3：1 ratio mixing；
（4）Shearing：Sheared after aqueous phase and oil phase mixing with cutter, while measure shear viscosity；
（5）Add initiator：When shear viscosity is 600, start inflated with nitrogen, the flow of nitrogen is controlled in 40m3/ h, fills
After nitrogen abundant deoxygenation in 30 minutes, initiator II is added, initiator II be sodium pyrosulfite, temperature rise control during sodium pyrosulfite addition
Make in 1 DEG C/5min, be no more than 50 DEG C with frozen water temperature control, final temperature when being reacted to 45 DEG C；
（6）Demulsification：After reaction is fully completed plus demulsifier, the demulsifier are OP-10, addition 32kg/t, are stirred
Blowing after 30 minutes.
The emulsion prepared using the present invention belongs to water-in-oil emulsion, and water can be arrived by rp demulsification, operation scene with molten by having
The inside is directly used, and compared with traditional handicraft, effective content reaches 35%；Molecular weight reaches 7,000,000-1,500 ten thousand；Stability is good, no
Easily degraded.
Claims (3)
- A kind of 1. preparation method of water-in-oil emulsion, it is characterised in that：Comprise the following steps：（1）The preparation of aqueous phase：Acrylamide and acrylic acid are pressed 2：1 mixing, add water to be configured to concentration and be 38% solution, then use It is 7.5 that liquid caustic soda, which is neutralized to pH, and neutral temperature is no more than 25 DEG C, is then cooled with frozen water, and when temperature is down to 20 DEG C, addition triggers Aqueous phase is formed after agent I, completely reaction, described initiator I is t-butyl hydroperoxide 100ppm, disodium ethylene diamine tetraacetate 300ppm, ammonium formate 2ppm；（2）The preparation of oil phase：White oil and emulsifying agent S-20 are according to 8：1 ratio mixing；（3）Aqueous phase and oil phase are according to 3：1 ratio mixing；（4）Shearing：Sheared after aqueous phase and oil phase mixing with cutter, while measure shear viscosity；（5）Add initiator：When shear viscosity is 600, start inflated with nitrogen, after inflated with nitrogen abundant deoxygenation in 30 minutes, addition is drawn Agent II is sent out, described initiator II is sodium pyrosulfite, and sodium pyrosulfite temperature rise in addition is controlled in 1 DEG C/5min, temperature liter It is no more than 50 DEG C with frozen water temperature control, final temperature at 45 DEG C；（6）Demulsification：Reaction adds demulsifier after being fully completed, blowing after stirring 30 minutes.
- A kind of 2. preparation method of water-in-oil emulsion according to claim 1, it is characterised in that：Step（5）Described in The flow of nitrogen is controlled in 40m3/h。
- A kind of 3. preparation method of water-in-oil emulsion according to claim 1, it is characterised in that：Step（6）Described in break Emulsion is OP-10, addition 32kg/t.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510337892.9A CN104861111B (en) | 2015-06-18 | 2015-06-18 | A kind of preparation method of water-in-oil emulsion |
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| CN201510337892.9A CN104861111B (en) | 2015-06-18 | 2015-06-18 | A kind of preparation method of water-in-oil emulsion |
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| CN104861111A CN104861111A (en) | 2015-08-26 |
| CN104861111B true CN104861111B (en) | 2017-12-29 |
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| CN105837745B (en) * | 2016-05-06 | 2018-07-06 | 哈尔滨鑫淼水处理科技发展有限公司 | Micro- auxiliary agent and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387823A (en) * | 2013-07-22 | 2013-11-13 | 中国科学技术大学 | Shear-thickening water-blocking profile control agent, preparation method thereof and application thereof in an oil field |
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| PT1451234E (en) * | 2001-12-07 | 2006-11-30 | Hercules Inc | Composition comprising cellulose fiber and a water-soluble anionic copolymer as well as method of making said composition |
| CN104418973B (en) * | 2013-09-11 | 2017-03-29 | 中国石油化工股份有限公司 | A kind of preparation method of polyacrylamide emulsion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387823A (en) * | 2013-07-22 | 2013-11-13 | 中国科学技术大学 | Shear-thickening water-blocking profile control agent, preparation method thereof and application thereof in an oil field |
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