CN104151476A - Grey water dispersing agent and preparation method thereof - Google Patents
Grey water dispersing agent and preparation method thereof Download PDFInfo
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- CN104151476A CN104151476A CN201410348448.2A CN201410348448A CN104151476A CN 104151476 A CN104151476 A CN 104151476A CN 201410348448 A CN201410348448 A CN 201410348448A CN 104151476 A CN104151476 A CN 104151476A
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- water
- grey water
- methyl acrylate
- dispersing agent
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Abstract
The invention discloses a grey water dispersing scale inhibitor which comprises the following components in percentage by weight: 10-30% of acrylic acid, 10-25% of methyl acrylate, 10-25% of ethyl acrylate, 10-20% of hydroxypropyl acrylate and 10-20% of oxygen-free demineralized water. Meanwhile, the invention also discloses a preparation method of the dispersing agent. The grey water dispersing agent disclosed by the invention is free of phosphorus, excellent in scale inhibition performance and better in dispersivity.
Description
Technical field
The invention belongs to petrochemical industry, be specifically related to a kind of grey water dispersant and preparation method thereof.
Background technology
Coal gasification course is a highly process for water consumption, considers from environmental protection and economic angle, and the reuse of coal gasification apparatus the recycling of coal gas wash water, reducing as far as possible outer row's processing is unique selection! But due to a wider range (50～280 DEG C of temperature of water moderate pressure in washing water circulation recycle system, pressure 1～8Mpa), there is the matter and energy transmission of gas, liquid, solid three-phase in system, working condition complexity, calcium hardness, basicity and suspension content in water is all very high (admittedly outstanding thing is substantially more than 1500mg/L, pH value is more than 12), and concentrate raising with the continuous reuse of water, the fouling of washing water circulation recycle system is inevitable, and the normal operation of whole gasification system is caused to very large impact.
Coal gasification apparatus the recycling of coal gas wash water reclaiming system is divided into buck and Heisui River two portions, and buck is exactly that the water that contains most gasification carbon residue of directly directly discharging from vapourizing furnace, washing tower two portions bottom is processed the water after precipitation clarification is removed slag through flash distillation; Heisui River is the water that is expelled to flash system from vapourizing furnace, then enters subsider, and after initial gross separation, a part of mortar removes pressure filter, and it is buck that remaining band buck enters ash water tank.Both taking flash distillation as line of delimitation, before line, being Heisui River, is buck after line.
Once in treating processes, adopted some isolation technique both at home and abroad, but shortcoming is not used widely because complex operation, working cost be higher etc., in some similar turbid circulating water system, adding dirt dispersion agent is a kind of processing means simple to operate, but single owing to adding medicament, the scale inhibition that can not simultaneously meet the complicated condition of water quality such as differing temps scope in system, different outstanding thing content admittedly disperses requirement, and therefore the effect of the water treatment to this system also fails to ensure the long-term operation of tooling.
Summary of the invention
Goal of the invention: the object of the invention is to for the deficiencies in the prior art, a kind of grey water dispersant is provided.
Another object of the present invention is to the openly preparation method of above-mentioned grey water dispersant.
Technical scheme: in order to reach foregoing invention object, the present invention is specifically achieved like this: a kind of grey water dispersant, comprises the component of following weight percent: 10～30% vinylformic acid, 10～25% methyl acrylate, 10～25% ethyl propenoate, 10～20% Propylene glycol monoacrylate and 10～20% anaerobic de-mineralized water.
Preferably, the vinylformic acid that is 30% by weight percentage, 15% methyl acrylate, 25% ethyl propenoate, 20% Propylene glycol monoacrylate and 10% anaerobic de-mineralized water form.
The method of preparing above-mentioned grey water dispersant is specially: measure each raw material by formula, and at normal pressure, 40～60 DEG C, mix and blend 4～6 hours.
The mechanism of action of dispersion agent of the present invention is: owing to containing strong acid group (SO3H), weak acid group (COOH), non-ionic group (C-O-R-C=O in dispersion agent simultaneously,-OH), these functional groups aspect scale inhibition dispersion, play a part different.Weak acid group has strong adsorption to the active component of difficulty soluble salt crystallite, suppresses crystallization generation thereby play low dose effect; Strong acid group maintains slight ion characteristic, thereby contributes to difficulty soluble salt to dissociate; And non-ionic group has stronger adsorption to admittedly outstanding thing, and be dispersed in water.These groups in conjunction with producing synergistic effect, make medicament have good scale inhibition and dispersion performance through effectively.
Beneficial effect: compared with conventional art, tool of the present invention has the following advantages:
1, product itself is not phosphorous, after use, follow-up externally discharged waste water is processed and is more met environmental requirement, the harm of gathering that can not produce because of phosphorus the hard scales such as calcium phosphate to using appts system;
2, high temperature scale-inhibiting properties is more excellent, and gasification washing water circulation recycle system Heisui River part is at addition 40mg/L, 240 DEG C of temperature, and scale inhibition performance >=77% when pressure 30atm, far away higher than the scale inhibition performance level of other medicaments 2%-50%; At the scale inhibition performance of ash water system especially up to 95%;
3, dispersiveness is stronger, and through collecting market like product comparison test, dispersing property is higher by 26% than market like product.
Embodiment
Embodiment 1:
Get weight percentage and be 10% vinylformic acid, 25% methyl acrylate, 25% ethyl propenoate, 20% Propylene glycol monoacrylate and 20% anaerobic de-mineralized water, at normal pressure, 40～60 DEG C, mix and blend 4～6 hours.
Embodiment 2:
Get weight percentage and be 15% vinylformic acid, 23% methyl acrylate, 24% ethyl propenoate, 19% Propylene glycol monoacrylate and 19% anaerobic de-mineralized water, at normal pressure, 40～60 DEG C, mix and blend 4～6 hours.
Embodiment 3:
Get weight percentage and be 20% vinylformic acid, 20% methyl acrylate, 25% ethyl propenoate, 15% Propylene glycol monoacrylate and 20% anaerobic de-mineralized water, at normal pressure, 40～60 DEG C, mix and blend 4～6 hours.
Embodiment 4:
Get weight percentage and be 25% vinylformic acid, 20% methyl acrylate, 20% ethyl propenoate, 20% Propylene glycol monoacrylate and 15% anaerobic de-mineralized water, at normal pressure, 40～60 DEG C, mix and blend 4～6 hours.
Embodiment 5:
Get weight percentage and be 30% vinylformic acid, 15% methyl acrylate, 25% ethyl propenoate, 20% Propylene glycol monoacrylate and 10% anaerobic de-mineralized water, at normal pressure, 40～60 DEG C, mix and blend 4～6 hours.
Embodiment 6:
Get weight percentage and be 25% vinylformic acid, 25% methyl acrylate, 20% ethyl propenoate, 10% Propylene glycol monoacrylate and 20% anaerobic de-mineralized water, at normal pressure, 40～60 DEG C, mix and blend 4～6 hours.
Embodiment 7:
Get weight percentage and be 30% vinylformic acid, 25% methyl acrylate, 10% ethyl propenoate, 20% Propylene glycol monoacrylate and 15% anaerobic de-mineralized water, at normal pressure, 40～60 DEG C, mix and blend 4～6 hours.
Embodiment 8:
Get weight percentage and be 25% vinylformic acid, 10% methyl acrylate, 25% ethyl propenoate, 20% Propylene glycol monoacrylate and 20% anaerobic de-mineralized water, at normal pressure, 40～60 DEG C, mix and blend 4～6 hours.
Claims (3)
1. a grey water dispersant, it is characterized in that, comprise the component of following weight percent: 10～30% vinylformic acid, 10～25% methyl acrylate, 10～25% ethyl propenoate, 10～20% Propylene glycol monoacrylate and 10～20% anaerobic de-mineralized water.
2. grey water dispersant according to claim 1, is characterized in that, the vinylformic acid that is 30% by weight percentage, 15% methyl acrylate, 25% ethyl propenoate, 20% Propylene glycol monoacrylate and 10% anaerobic de-mineralized water form.
3. the method for preparing grey water dispersant described in claim 1, is characterized in that, measures each raw material by formula, at normal pressure, 40～60 DEG C, and mix and blend 4～6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348448.2A CN104151476B (en) | 2014-07-21 | A kind of ash water dispersant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348448.2A CN104151476B (en) | 2014-07-21 | A kind of ash water dispersant and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104151476A true CN104151476A (en) | 2014-11-19 |
| CN104151476B CN104151476B (en) | 2017-01-04 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4029577A (en) * | 1975-11-17 | 1977-06-14 | Betz Laboratories, Inc. | Polymers for use in water treatment |
| US4427568A (en) * | 1981-04-16 | 1984-01-24 | Betz Laboratories, Inc. | Composition for treating aqueous mediums |
| US4534866A (en) * | 1983-02-17 | 1985-08-13 | Betz Laboratories, Inc. | Deposit control method |
| US4929362A (en) * | 1983-10-26 | 1990-05-29 | Betz Laboratories, Inc. | Calcium phosphate scale control methods |
| US20030149206A1 (en) * | 2001-11-06 | 2003-08-07 | Takashi Tomita | (Meth) acrylic acid (salt) polymer and its production process |
| CN102491540A (en) * | 2011-11-24 | 2012-06-13 | 上海久安水质稳定剂厂 | Efficient scale inhibiting and dispersing agent and manufacture method thereof |
| CN103570143A (en) * | 2012-07-24 | 2014-02-12 | 中国石油化工股份有限公司 | Method of recycling reclaimed water for recirculating cooling water system |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4029577A (en) * | 1975-11-17 | 1977-06-14 | Betz Laboratories, Inc. | Polymers for use in water treatment |
| US4427568A (en) * | 1981-04-16 | 1984-01-24 | Betz Laboratories, Inc. | Composition for treating aqueous mediums |
| US4534866A (en) * | 1983-02-17 | 1985-08-13 | Betz Laboratories, Inc. | Deposit control method |
| US4929362A (en) * | 1983-10-26 | 1990-05-29 | Betz Laboratories, Inc. | Calcium phosphate scale control methods |
| US20030149206A1 (en) * | 2001-11-06 | 2003-08-07 | Takashi Tomita | (Meth) acrylic acid (salt) polymer and its production process |
| CN102491540A (en) * | 2011-11-24 | 2012-06-13 | 上海久安水质稳定剂厂 | Efficient scale inhibiting and dispersing agent and manufacture method thereof |
| CN103570143A (en) * | 2012-07-24 | 2014-02-12 | 中国石油化工股份有限公司 | Method of recycling reclaimed water for recirculating cooling water system |
Non-Patent Citations (1)
| Title |
|---|
| 潘祖仁: "《高分子化学（第二版）》", 30 June 1997, 化学工业出版社 * |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Ash water dispersant and preparation method thereof Effective date of registration: 20211011 Granted publication date: 20170104 Pledgee: Bank of China Limited Yixing branch Pledgor: YIXING CITY XINGGUANG BAOYI CHEMICAL Co.,Ltd. Registration number: Y2021980010513 |
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