CN104014165A - Compound-type de-foaming agent and preparation method thereof - Google Patents
Compound-type de-foaming agent and preparation method thereof Download PDFInfo
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- CN104014165A CN104014165A CN201410063667.6A CN201410063667A CN104014165A CN 104014165 A CN104014165 A CN 104014165A CN 201410063667 A CN201410063667 A CN 201410063667A CN 104014165 A CN104014165 A CN 104014165A
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Abstract
The invention discloses a compound-type de-foaming agent. The compound-type de-foaming agent comprises the following raw materials in percentage by mass: 1-20 percent of modified silicon polyether, 5-70 percent of polyether modified siloxane, 3-50 percent of an emulsifying agent, 10-20 percent of polyethylene glycol, 1-10 percent of fatty alcohol and 2-15 percent of triglyceride. The compound-type de-foaming agent has the advantages of stable performance, high de-foaming speed and long foam inhibition time, does not poison sewage microorganisms, does not change the COD (chemical oxygen demand) and BOD (biochemical oxygen demand) of sewage, and is applicable to wastewater treatment of enterprises of papermaking, printing-dyeing, sugar refinery, pharmacy and leather.
Description
Technical field
The present invention relates to a kind of defoamer, specifically a kind of compound defoamer, belongs to fine chemical technology field.
Background technology
The many harmful foam producing in industrial processes, can cause raw material excessively to make waste that equipment capacity limited, caused raw material and product greatly, extended reaction time, affect product quality, contaminated environment, cause the harm such as accident, therefore, in industrial process, need to add defoamer.
With regard to current defoamer, the performance of polyethers and silicone based defoamer is the best, also more active to the developmental research of the modification of this two defoamer and new varieties.Up-to-date defoamer kind is silicon ether Copolymer, and this defoamer froth breaking is fast, but the bubble time is long, alkaline-resisting acidproof, high temperature resistant, and compatibility is good, and the good feature of existing common defoamer compatibility has again the good feature of silicone based defoamer defoaming effect.Recently the research of defoamer mainly concentrates on the Compositional type defoamer such as composite of composite, the polyethers of organo-silicon compound and surfactant and organosilyl composite, water-soluble or oil-soluble polyethers and silicon-containing polyether, and composite is one of the development trend of defoamer.
Patent ZL 200910075334.4 discloses a kind of composite silicon-free defoamer, for solving the froth bed problem in coke drum, its technical scheme is that defoamer is formulated by the raw material of following mass parts: laruyl alcohol 20-50, polyoxyethylene polyoxypropylene glycerin ether 10-50, phenol derivatives ethyoxyl third class oxide 5-20, isooctanol 10-30; This composite silicon-free defoamer is not siliceous, nontoxic, is heated to 500 ℃ and does not decompose, and heat resistance is good, is applicable to froth breaking under high temperature, and its defoaming effect is suitable with low silicon defoaming agent, and when addition surpasses 50 μ g/g, defoamed ratio can reach more than 90%.
In water treatment field, some manufacturing industry, as papermaking, sugaring, leather etc., in its waste water, contain a large amount of foams, due to the generation of special chemical reaction, in some waste water, the viscosity of foam is large, foam is fine and smooth, be difficult to eliminate, in its surfactant containing of some waste water, even also help possibility of bubble, press down steep difficulty, froth breaking difficulty is large, therefore, need to adopt compound defoamer.
Application number 201110178433.2 discloses a kind of defoamer for black liquid, and the main froth breaking material of its polyethers by 80-92%, 3-15% and the emulsifying agent of 3-10% form.Wherein main froth breaking material is comprised of white carbon, fatty acid amide and fatty acid aluminium, and emulsifying agent is non-ionic surface active agent.Patent ZL200710132292.4 discloses the defoamer that a kind of paper making wet part is used, and this defoamer is also applicable to the elimination of paper waste processing and some other water foam, and it is composed of the following components: (1) 0.1～20% fatty alcohol; (2) 10～80% aliphatic alcohol polyethers; (3) 5～70% common group modified polyethers, common group modified polyethers is by polyethers and end-blocking material monochloro methane, a chlorobutane or aliphatic acid, to carry out blocking modification to make; (4) 0.1～30% organic silicon modified by polyether (being called for short " silicon polyethers "), silicon polyethers is made by containing hydrogen silicone oil and unsaturated polyether addition reaction; (5) 0.1～20% natural oils.This Antifoam agent for wet part of papermaking is by polyethers is carried out to chemical treatment, then by compound synergic effect, solves defoamer froth breaking and the not good problem of degassing performance under hot conditions.
Summary of the invention
The compound defoamer that the object of the invention provides a kind of wastewater treatment that is suitable for papermaking, printing and dyeing, sugaring, pharmacy, leather enterprise to use, this compound defoamer is combined into by modified silicon polyethers and modified siloxane, with nontoxic, the organic silicone oil emulsification of physiology inertia forms, and has stable performance, and antifoaming speed is fast, but the bubble time is long, sewage microorganism is not produced to murder by poisoning, do not change the performance of COD of sewage, BOD, be beneficial to follow-up water treatment technology.
The technical solution adopted in the present invention is: a kind of compound defoamer, by modified silicon polyethers, polyether modified siloxane, emulsifying agent, polyethylene glycol, fatty alcohol, Triglycerides, the mass percent of each raw material consists of: modified silicon polyethers 1-20%, polyether modified siloxane 5-70%, emulsifying agent 3-50%, polyethylene glycol 10-20%, fatty alcohol 1-10%, triglycerides 2-15%.
Preferably the mass percent of each raw material is as follows: modified silicon polyethers 1-10%, polyether modified siloxane 10-50%, emulsifying agent 3-40%, polyethylene glycol 10-15%, fatty alcohol 1-8%, triglycerides 2-10%.
The mass percent of preferred each raw material is as follows: modified silicon polyethers 5%, polyether modified siloxane 45%, emulsifying agent 30%, polyethylene glycol 12%, fatty alcohol 5%, triglycerides 3%.
Described modified silicon polyethers is preferably trifluoro propyl modified silicon polyethers.
Described polyether modified siloxane is preferably undertaken by silicon oil of low hydrogen content and end-allyl group Polyoxyalkylene ethers that hydrosilylation is synthetic to be obtained.
Described emulsifying agent is preferably organic silicone oil.
Compound defoamer of the present invention adopts following steps preparation: first modified silicon polyethers, polyether modified siloxane, triglycerides are mixed, fully dissolve, stir, add again polyethylene glycol, fatty alcohol mix and blend, finally add again emulsifier for mixing evenly.
The present invention with respect to the beneficial effect of prior art is: modified silicon polyethers and modified siloxane are combined into, in the molecule of this eka-silicon ether copolymer, siloxanes section is lipophilic group, polyethers section is hydrophilic group, in polyether segment, polyethylene oxide chain Energy Conservation is for hydrophily and foaming characteristic, energy-conservation hydrophobicity and the penetration of providing of PPOX chain, to reducing surface tension, there is stronger effect, obtain good, froth breaking and press down the effect of bubble rapidly, sewage microorganism is not produced to murder by poisoning, do not change the performance of COD of sewage, BOD, be beneficial to follow-up water treatment technology.
The specific embodiment
Below by embodiment, the present invention is described in further details, these embodiment are only used for illustrating the present invention, do not limit the scope of the invention.
1 one kinds of compound defoamers of embodiment, adopt the raw material of following mass percent to prepare: trifluoro propyl modified silicon polyethers 5%, by silicon oil of low hydrogen content and end-allyl group Polyoxyalkylene ethers, carry out synthetic polyether modified siloxane 45%, organic silicone oil 30%, polyethylene glycol 12%, fatty alcohol 5%, the triglycerides 3% obtaining of hydrosilylation.
Employing following steps preparation: first modified silicon polyethers, polyether modified siloxane, triglycerides are mixed, fully dissolve, stir, then add polyethylene glycol, fatty alcohol mix and blend, finally add again emulsifier for mixing evenly.
2 one kinds of compound defoamers of embodiment, adopt the raw material of following mass percent to prepare: trifluoro propyl modified silicon polyethers 14%, by silicon oil of low hydrogen content and end-allyl group Polyoxyalkylene ethers, carry out synthetic polyether modified siloxane 70%, organic silicone oil 3%, polyethylene glycol 10%, fatty alcohol 1%, the triglycerides 2% obtaining of hydrosilylation.
3 one kinds of compound defoamers of embodiment, adopt the raw material of following mass percent to prepare: trifluoro propyl modified silicon polyethers 1%, by silicon oil of low hydrogen content and end-allyl group Polyoxyalkylene ethers, carry out synthetic polyether modified siloxane 55%, organic silicone oil 20%, polyethylene glycol 10%, fatty alcohol 8%, the triglycerides 6% obtaining of hydrosilylation.
4 one kinds of compound defoamers of embodiment, adopt the raw material of following mass percent to prepare: trifluoro propyl modified silicon polyethers 20%, by silicon oil of low hydrogen content and end-allyl group Polyoxyalkylene ethers, carry out synthetic polyether modified siloxane 5%, organic silicone oil 50%, polyethylene glycol 10%, fatty alcohol 5%, the triglycerides 10% obtaining of hydrosilylation.
5 one kinds of compound defoamers of embodiment, adopt the raw material of following mass percent to prepare: trifluoro propyl modified silicon polyethers 10%, by silicon oil of low hydrogen content and end-allyl group Polyoxyalkylene ethers, carry out synthetic polyether modified siloxane 10%, organic silicone oil 40%, polyethylene glycol 15%, fatty alcohol 10%, the triglycerides 15% obtaining of hydrosilylation.
Claims (7)
1. a compound defoamer, it is characterized in that: by modified silicon polyethers, polyether modified siloxane, emulsifying agent, polyethylene glycol, fatty alcohol, Triglycerides, the mass percent of each raw material consists of: modified silicon polyethers 1-20%, polyether modified siloxane 5-70%, emulsifying agent 3-50%, polyethylene glycol 10-20%, fatty alcohol 1-10%, triglycerides 2-15%.
2. compound defoamer according to claim 1, is characterized in that: the mass percent of described each raw material is as follows: modified silicon polyethers 1-10%, polyether modified siloxane 10-50%, emulsifying agent 3-40%, polyethylene glycol 10-15%, fatty alcohol 1-8%, triglycerides 2-10%.
3. compound defoamer according to claim 2, is characterized in that: the mass percent of described each raw material is as follows: modified silicon polyethers 5%, polyether modified siloxane 45%, emulsifying agent 30%, polyethylene glycol 12%, fatty alcohol 5%, triglycerides 3%.
4. according to the compound defoamer described in claim 1 or 2 or 3, it is characterized in that: described modified silicon polyethers is trifluoro propyl modified silicon polyethers.
5. according to the compound defoamer described in claim 1 or 2 or 3, it is characterized in that: described polyether modified siloxane is undertaken by silicon oil of low hydrogen content and end-allyl group Polyoxyalkylene ethers that hydrosilylation is synthetic to be obtained.
6. according to the compound defoamer described in claim 1 or 2 or 3, it is characterized in that: described emulsifying agent is organic silicone oil.
7. compound defoamer according to claim 1, it is characterized in that: adopt following steps preparation: first modified silicon polyethers, polyether modified siloxane, triglycerides are mixed, fully dissolve, stir, add again polyethylene glycol, fatty alcohol mix and blend, finally add again emulsifier for mixing evenly.
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| CN201410063667.6A CN104014165A (en) | 2014-02-25 | 2014-02-25 | Compound-type de-foaming agent and preparation method thereof |
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| CN201410063667.6A CN104014165A (en) | 2014-02-25 | 2014-02-25 | Compound-type de-foaming agent and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126394A (en) * | 2015-08-31 | 2015-12-09 | 河北恩赛环保科技有限公司 | Power plant desulphurization defoamer and preparing method thereof |
| CN105836833A (en) * | 2016-05-20 | 2016-08-10 | 张能力 | Defoaming agent for sewage treatment and preparation method of defoaming agent |
| CN106621479A (en) * | 2016-11-28 | 2017-05-10 | 宣城市聚源精细化工有限公司 | Efficient defoaming agent |
| CN106731034A (en) * | 2016-12-22 | 2017-05-31 | 新疆水处理工程技术研究中心有限公司 | A kind of compound defoamer |
| CN107174841A (en) * | 2017-06-05 | 2017-09-19 | 中国石油集团渤海钻探工程有限公司 | Fracturing outlet liquid liquid antifoam agent and preparation method thereof |
| CN110559694A (en) * | 2019-08-29 | 2019-12-13 | 安徽銮威化工科技开发有限公司 | Bacteriostatic defoaming agent for dyeing liquor and preparation method thereof |
-
2014
- 2014-02-25 CN CN201410063667.6A patent/CN104014165A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126394A (en) * | 2015-08-31 | 2015-12-09 | 河北恩赛环保科技有限公司 | Power plant desulphurization defoamer and preparing method thereof |
| CN105126394B (en) * | 2015-08-31 | 2017-04-19 | 河北恩赛环保科技有限公司 | Power plant desulphurization defoamer |
| CN105836833A (en) * | 2016-05-20 | 2016-08-10 | 张能力 | Defoaming agent for sewage treatment and preparation method of defoaming agent |
| CN106621479A (en) * | 2016-11-28 | 2017-05-10 | 宣城市聚源精细化工有限公司 | Efficient defoaming agent |
| CN106731034A (en) * | 2016-12-22 | 2017-05-31 | 新疆水处理工程技术研究中心有限公司 | A kind of compound defoamer |
| CN107174841A (en) * | 2017-06-05 | 2017-09-19 | 中国石油集团渤海钻探工程有限公司 | Fracturing outlet liquid liquid antifoam agent and preparation method thereof |
| CN110559694A (en) * | 2019-08-29 | 2019-12-13 | 安徽銮威化工科技开发有限公司 | Bacteriostatic defoaming agent for dyeing liquor and preparation method thereof |
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