CN103420512A - Preparation method of (1-hydroxyethylene) diphosphonic acid compound scale inhibitor - Google Patents
Preparation method of (1-hydroxyethylene) diphosphonic acid compound scale inhibitor Download PDFInfo
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- CN103420512A CN103420512A CN2012101640398A CN201210164039A CN103420512A CN 103420512 A CN103420512 A CN 103420512A CN 2012101640398 A CN2012101640398 A CN 2012101640398A CN 201210164039 A CN201210164039 A CN 201210164039A CN 103420512 A CN103420512 A CN 103420512A
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- diphosphate
- hydroxy ethylidene
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- hydroxyethylene
- agent
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Abstract
The invention discloses a preparation method of (1-hydroxyethylene) diphosphonic acid compound scale inhibitor, belonging to the field of chemical engineering. The method employs (1-hydroxyethylene) diphosphonic acid, an acrylic acid-hydroxy-propyl acrylate copolymer, amino trimethylene phosphonic acid and sodium benzotriazole as raw materials, and a chemical reaction kettle as equipment for production of the (1-hydroxyethylene) diphosphonic acid compound scale inhibitor. The method has advantages of simple process, convenience for batch production, mild and easily controlled reaction conditions, stable quality and no discharge of sewage or exhaust gas.
Description
Technical field
The invention belongs to chemical field, relate in particular to the compound method of a kind of hydroxy ethylidene-diphosphate composite scale agent.
Background technology
The hydroxy ethylidene-diphosphate molecular formula is C2H8O7P2, outward appearance is colourless to faint yellow viscous fluid, sterling is white crystal, fusing point is 199 ℃, relative density is 1.6, soluble in water, methyl alcohol, ethanol, larger dissociation constant is arranged in water, hydroxy ethylene diphosphonic acid is a kind of organic phosphine acids anti-incrustation corrosion inhibitor, energy and iron, copper, the many kinds of metal ions such as zinc form stable complex compound, the oxide compound on energy dissolution of metals surface, still can play good corrosion-mitigation scale-inhibition effect under 250 ℃, still very stable under high pH value, facile hydrolysis not, under general light and heat condition, be difficult for decomposing, resistance to acids and bases, anti-oxychlorination performance is good than other organic phosphonate.Hydroxy ethylene diphosphonic acid can belong to ion with underwater gold, and especially calcium ion forms six annulus inner complexs, thereby tool scale inhibition effect the obvious threshold effect of tool preferably, when with other water conditioner compound use, shows desirable synergistic effect.The hydroxy ethylene diphosphonic acid solid belongs to high purity product, is applicable to the winter severe cold area, is specially adapted to clean-out system and the household chemicals additive of electron trade.Hydroxy ethylene diphosphonic acid is widely used in scale inhibition and the inhibition of the industrial circulating cooling water systems such as electric power, chemical industry, metallurgy, chemical fertilizer and middle low-pressure boiler, oil-field flooding and pipe laying; In light and textile industries, can make metal and nonmetallic clean-out system, bleaching and dyeing industrial peroxide stabiliser and laking agent, the complexing agent of cyanideless electro-plating industry, pharmaceutical industries is done the agent of carrying of radioelement.Hydroxy ethylidene-diphosphate usually is used in conjunction with the polyocarboxy acid type dirt dispersion agent, when other industry is used, and should be according to testing definite consumption.The present invention be take hydroxy ethylidene-diphosphate, vinylformic acid-Propylene glycol monoacrylate multipolymer, Amino Trimethylene Phosphonic Acid, benzotriazole sodium and is produced the agent of hydroxy ethylidene-diphosphate composite scale as equipment as raw material, the chemical reaction kettle of take, the method have technique simple, be convenient to that batch production, reaction conditions gentleness are easy to control, steady quality, without advantages such as sewage exhaust gas emissions.
Summary of the invention
The problem to be solved in the present invention is to provide the method for a kind of batch preparation hydroxy ethylidene-diphosphate composite scale agent, this product is with hydroxy ethylidene-diphosphate, vinylformic acid-Propylene glycol monoacrylate multipolymer, Amino Trimethylene Phosphonic Acid, benzotriazole sodium is raw material, take chemical reaction kettle as container, be aided with suitable temperature and reaction times, prepare the agent of hydroxy ethylidene-diphosphate composite scale, the proportioning raw materials of producing this product use is: hydroxy ethylidene-diphosphate 58%-60%, vinylformic acid-Propylene glycol monoacrylate multipolymer 28%-30%, Amino Trimethylene Phosphonic Acid 8%, benzotriazole sodium 4%.
The present invention can be achieved through the following technical solutions:
The compound method of a kind of hydroxy ethylidene-diphosphate composite scale agent, its feature consists of following steps:
(1) hydroxy ethylidene-diphosphate of formula ratio, vinylformic acid-Propylene glycol monoacrylate multipolymer being started to stirrer after sending in chemical reaction kettle stirs, rotating speed is 28 rev/mins, send into steam immediately in the reactor interlayer, make slowly to heat up in reactor, control temperature between 38 ℃-40 ℃, stirring reaction 1 hour.
(2) stop the steam supply to reactor, be cooled between 25 ℃-27 ℃, continue to stir, add Amino Trimethylene Phosphonic Acid, the benzotriazole sodium of formula ratio simultaneously, stir after 0.5 hour and stop stirring, obtain finished product after being cooled to normal temperature.
Temperature in above-mentioned steps (1) is 39 ℃.
Temperature in above-mentioned steps (2) is 26 ℃.
The invention has the beneficial effects as follows: the production method of a kind of hydroxy ethylidene-diphosphate composite scale agent is provided, this production method have technique simple, be convenient to that batch production, reaction conditions gentleness are easy to control, steady quality, without advantages such as sewage exhaust gas emissions.
Embodiment
Embodiment 1
By accounting for hydroxy ethylidene-diphosphate that total amount is 58%, account for the vinylformic acid that total amount is 30%-Propylene glycol monoacrylate multipolymer and start stirrer after sending in chemical reaction kettle and stir, rotating speed is 28 rev/mins, send into steam immediately in the reactor interlayer, make slowly to heat up in reactor, control temperature between 38 ℃-40 ℃, stirring reaction 1 hour; Stop the steam supply to reactor, be cooled between 25 ℃-27 ℃, continue to stir, add simultaneously account for total amount be 8% Amino Trimethylene Phosphonic Acid, account for the benzotriazole sodium that total amount is 4%, stir after 0.5 hour and stop stirring, obtain finished product after being cooled to normal temperature.
Embodiment 2
By accounting for hydroxy ethylidene-diphosphate that total amount is 59%, account for the vinylformic acid that total amount is 29%-Propylene glycol monoacrylate multipolymer and start stirrer after sending in chemical reaction kettle and stir, rotating speed is 28 rev/mins, send into steam immediately in the reactor interlayer, make slowly to heat up in reactor, control temperature between 38 ℃-40 ℃, stirring reaction 1 hour; Stop the steam supply to reactor, be cooled between 25 ℃-27 ℃, continue to stir, add simultaneously account for total amount be 8% Amino Trimethylene Phosphonic Acid, account for the benzotriazole sodium that total amount is 4%, stir after 0.5 hour and stop stirring, obtain finished product after being cooled to normal temperature.
Embodiment 3
By accounting for hydroxy ethylidene-diphosphate that total amount is 60%, account for the vinylformic acid that total amount is 28%-Propylene glycol monoacrylate multipolymer and start stirrer after sending in chemical reaction kettle and stir, rotating speed is 28 rev/mins, send into steam immediately in the reactor interlayer, make slowly to heat up in reactor, control temperature between 38 ℃-40 ℃, stirring reaction 1 hour; Stop the steam supply to reactor, be cooled between 25 ℃-27 ℃, continue to stir, add simultaneously account for total amount be 8% Amino Trimethylene Phosphonic Acid, account for the benzotriazole sodium that total amount is 4%, stir after 0.5 hour and stop stirring, obtain finished product after being cooled to normal temperature.
Claims (3)
1. the compound method of hydroxy ethylidene-diphosphate composite scale agent, its composition of raw materials counts by weight percentage, and comprising: hydroxy ethylidene-diphosphate 58%-60%, vinylformic acid-Propylene glycol monoacrylate multipolymer 28%-30%, Amino Trimethylene Phosphonic Acid 8%, benzotriazole sodium 4%; It is characterized in that: step (1) is started stirrer and is stirred after sending the hydroxy ethylidene-diphosphate of formula ratio, vinylformic acid-Propylene glycol monoacrylate multipolymer in chemical reaction kettle, rotating speed is 28 rev/mins, send into steam immediately in the reactor interlayer, make slowly to heat up in reactor, control temperature between 38 ℃-40 ℃, stirring reaction 1 hour; Step (2) stops the steam supply to reactor, is cooled between 25 ℃-27 ℃, continue to stir, and adds Amino Trimethylene Phosphonic Acid, the benzotriazole sodium of formula ratio simultaneously, stirs after 0.5 hour and stops stirring, and obtains finished product after being cooled to normal temperature.
2. the compound method of a kind of hydroxy ethylidene-diphosphate composite scale according to claim 1 agent, the feature of its step (1) is: described temperature is 39 ℃.
3. the compound method of a kind of hydroxy ethylidene-diphosphate composite scale according to claim 1 agent, the feature of its step (2) is: described temperature is 26 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101640398A CN103420512A (en) | 2012-05-25 | 2012-05-25 | Preparation method of (1-hydroxyethylene) diphosphonic acid compound scale inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101640398A CN103420512A (en) | 2012-05-25 | 2012-05-25 | Preparation method of (1-hydroxyethylene) diphosphonic acid compound scale inhibitor |
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| CN103420512A true CN103420512A (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101640398A Pending CN103420512A (en) | 2012-05-25 | 2012-05-25 | Preparation method of (1-hydroxyethylene) diphosphonic acid compound scale inhibitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555622A (en) * | 2017-10-25 | 2018-01-09 | 成都凯米拉科技有限公司 | A kind of production technology of oil field water process composite scale inhibitor |
| CN107720985A (en) * | 2017-10-25 | 2018-02-23 | 成都凯米拉科技有限公司 | A kind of compound oil field water process antisludging agent |
-
2012
- 2012-05-25 CN CN2012101640398A patent/CN103420512A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555622A (en) * | 2017-10-25 | 2018-01-09 | 成都凯米拉科技有限公司 | A kind of production technology of oil field water process composite scale inhibitor |
| CN107720985A (en) * | 2017-10-25 | 2018-02-23 | 成都凯米拉科技有限公司 | A kind of compound oil field water process antisludging agent |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131204 |