CN103420509A - Preparation method of sodium salt of hydroxyl ethylidene diphosphonic acid compound scale inhibitor - Google Patents
Preparation method of sodium salt of hydroxyl ethylidene diphosphonic acid compound scale inhibitor Download PDFInfo
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- CN103420509A CN103420509A CN2012101640364A CN201210164036A CN103420509A CN 103420509 A CN103420509 A CN 103420509A CN 2012101640364 A CN2012101640364 A CN 2012101640364A CN 201210164036 A CN201210164036 A CN 201210164036A CN 103420509 A CN103420509 A CN 103420509A
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- diphosphonic acid
- sodium
- hydroxy ethylidene
- sodium salt
- acid sodium
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Abstract
The invention discloses a preparation method of a sodium salt of hydroxyl ethylidene diphosphonic acid compound scale inhibitor. The product belongs to the field of chemical engineering. A main raw material sodium salt of hydroxyl ethylidene diphosphonic acid and auxiliary materials of sodium of polyaspartic acid, sodium polyacrylate and sodium polyepoxysuccinic acid react in a reaction kettle container for a certain time at proper temperature to prepare the sodium salt of hydroxyl ethylidene diphosphonic acid compound scale inhibitor. The method has advantages of simple production technology, low cost and no discharge of ''three wastes''. The product has effects substantially better than a single sodium salt of hydroxyl ethylidene diphosphonic acid. and the product is a scale inhibitor with wide scope of application, can effectively prevent scale generation in an aqueous solution and can be used as a corrosion inhibitor and a cleaning compound.
Description
Technical field
Product of the present invention belongs to chemical field, relates in particular to a kind of compound method of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium composite Scale inhibitors.
Background technology
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium, outward appearance is colourless extremely micro-yellow transparent liquid, and molecular formula is C2H7O7P2 Na, and relative molecular mass is 228.1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium is a kind of organic phosphine acids anti-incrustation corrosion inhibitor, can form stable complex compound with many kinds of metal ions such as iron, copper, zinc, the oxide compound on energy dissolution of metals surface, can belong to ion with underwater gold, especially calcium ion forms six annulus inner complexs, thereby tool scale inhibition effect the obvious threshold effect of tool preferably, still can play good corrosion-mitigation scale-inhibition effect in the time of 250 ℃, still very stable under high pH, facile hydrolysis not, when with other water conditioner compound use, show desirable synergistic effect, be suitable for Scale inhibitors and the washing composition of acid formula most.1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium is single sodium salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, can be widely used in the industrial circulating cooling water systems such as electric power, chemical industry, metallurgy, chemical fertilizer and in, scale inhibition and the inhibition of low pressure boiler, oil-field flooding and pipe laying; 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium, in light and textile industries, can be made metal and nonmetallic clean-out system, bleachinges and dyeing industrial peroxide stabiliser and laking agent, the complexing agent of cyanideless electro-plating industry.When single 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium is used as Scale inhibitors, often have some defects, common and polyocarboxy acid type dirt dispersion agent is used in conjunction with.The present invention be take 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium as main raw material, with poly (sodium aspartate), sodium polyacrylate, polyepoxy sodium succinate is auxiliary material, take chemical reaction kettle as container, being aided with suitable temperature and reaction times prepares 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium composite Scale inhibitors, there is production technique simple, with low cost, advantage without " three wastes " discharge, the effect of product is better than single 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium greatly, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium composite Scale inhibitors is the widely used Scale inhibitors of a class, in the aqueous solution, can effectively stop the generation of incrustation scale, also can be used as inhibiter and clean-out system uses, the concentration difference of just using.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of method that batch prepares 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium composite Scale inhibitors, this product is that to take 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium, poly (sodium aspartate), sodium polyacrylate, polyepoxy sodium succinate be raw material, take chemical reaction kettle as container, be aided with suitable temperature and reaction times, prepare 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium composite Scale inhibitors, the proportioning raw materials of producing this product use is: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium 65%-67%, poly (sodium aspartate) 15%-17%, sodium polyacrylate 10%, polyepoxy sodium succinate 8%.
The present invention can be achieved through the following technical solutions:
A kind of compound method of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium composite Scale inhibitors, its feature consists of following steps:
(1) starting stirrer after sending in chemical reaction kettle by 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium, the poly (sodium aspartate) of formula ratio stirs, rotating speed is 25 rev/mins, sends into steam immediately in the reactor interlayer, makes slowly to heat up in reactor, control temperature between 50 ℃-55 ℃, stirring reaction 1 hour.
(2) stop the steam supply to reactor, be cooled between 30 ℃-35 ℃, continue to stir, add sodium polyacrylate, the polyepoxy sodium succinate 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 53 ℃.
Temperature in above-mentioned steps (2) is 32 ℃.
The invention has the beneficial effects as follows: the production method that a kind of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium composite Scale inhibitors is provided, this production method has the advantages such as technique is simple, reaction conditions is gentle, production cost is low, good product quality, and product can be used as Scale inhibitors, inhibiter, clean-out system use.
Embodiment
Embodiment 1
By accounting for 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium that total amount is 65%, account for after poly (sodium aspartate) that total amount is 17% is sent in chemical reaction kettle and start stirrer and stir, rotating speed is 25 rev/mins, send into steam immediately in the reactor interlayer, make slowly to heat up in reactor, control temperature between 50 ℃-55 ℃, stirring reaction 1 hour; Stop the steam supply to reactor, be cooled between 30 ℃-35 ℃, continue to stir, add to account for sodium polyacrylate that total amount is 10%, account for the polyepoxy sodium succinate that total amount is 8% simultaneously, stir after 0.5 hour and stop stirring, obtain finished product after being cooled to normal temperature.
Embodiment 2
By accounting for 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium that total amount is 66%, account for after poly (sodium aspartate) that total amount is 16% is sent in chemical reaction kettle and start stirrer and stir, rotating speed is 25 rev/mins, send into steam immediately in the reactor interlayer, make slowly to heat up in reactor, control temperature between 50 ℃-55 ℃, stirring reaction 1 hour; Stop the steam supply to reactor, be cooled between 30 ℃-35 ℃, continue to stir, add to account for sodium polyacrylate that total amount is 10%, account for the polyepoxy sodium succinate that total amount is 8% simultaneously, stir after 0.5 hour and stop stirring, obtain finished product after being cooled to normal temperature.
Embodiment 3
By accounting for 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium that total amount is 67%, account for after poly (sodium aspartate) that total amount is 15% is sent in chemical reaction kettle and start stirrer and stir, rotating speed is 25 rev/mins, send into steam immediately in the reactor interlayer, make slowly to heat up in reactor, control temperature between 50 ℃-55 ℃, stirring reaction 1 hour; Stop the steam supply to reactor, be cooled between 30 ℃-35 ℃, continue to stir, add to account for sodium polyacrylate that total amount is 10%, account for the polyepoxy sodium succinate that total amount is 8% simultaneously, stir after 0.5 hour and stop stirring, obtain finished product after being cooled to normal temperature.
Claims (3)
1. the compound method of a 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium composite Scale inhibitors, its composition of raw materials counts by weight percentage, and comprising: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium 65%-67%, poly (sodium aspartate) 15%-17%, sodium polyacrylate 10%, polyepoxy sodium succinate 8%; It is characterized in that: step (1) is started stirrer and is stirred after sending in chemical reaction kettle by 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium, the poly (sodium aspartate) of formula ratio, rotating speed is 25 rev/mins, send into steam immediately in the reactor interlayer, make slowly to heat up in reactor, control temperature between 50 ℃-55 ℃, stirring reaction 1 hour; Step (2) stops the steam supply to reactor, is cooled between 30 ℃-35 ℃, continue to stir, and adds sodium polyacrylate, the polyepoxy sodium succinate 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 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium composite Scale inhibitors according to claim 1, the feature of its step (1) is: described temperature is 53 ℃.
3. the compound method of a kind of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid sodium composite Scale inhibitors according to claim 1, the feature of its step (2) is: described temperature is 32 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101640364A CN103420509A (en) | 2012-05-25 | 2012-05-25 | Preparation method of sodium salt of hydroxyl ethylidene diphosphonic acid compound scale inhibitor |
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| CN2012101640364A CN103420509A (en) | 2012-05-25 | 2012-05-25 | Preparation method of sodium salt of hydroxyl ethylidene diphosphonic acid compound scale inhibitor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445648A (en) * | 2014-11-14 | 2015-03-25 | 天津大港油田滨港集团博弘石油化工有限公司 | Corrosion and scale inhibitor for oilfield water injection treatment |
| CN105039995A (en) * | 2015-07-09 | 2015-11-11 | 潍坊友容实业有限公司 | Scale and corrosion inhibitor special for saline-alkali soil salt drainage concealed conduit and preparation method thereof |
| CN106245014A (en) * | 2016-08-25 | 2016-12-21 | 常熟市梅李合金材料有限公司 | Heating high-resistance electrothermal alloy material |
| CN107720984A (en) * | 2017-10-17 | 2018-02-23 | 高产明 | A kind of preparation method of the low-phosphorous water quality stabilizer of efficient scale corrosion inhibition type |
-
2012
- 2012-05-25 CN CN2012101640364A patent/CN103420509A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445648A (en) * | 2014-11-14 | 2015-03-25 | 天津大港油田滨港集团博弘石油化工有限公司 | Corrosion and scale inhibitor for oilfield water injection treatment |
| CN105039995A (en) * | 2015-07-09 | 2015-11-11 | 潍坊友容实业有限公司 | Scale and corrosion inhibitor special for saline-alkali soil salt drainage concealed conduit and preparation method thereof |
| CN106245014A (en) * | 2016-08-25 | 2016-12-21 | 常熟市梅李合金材料有限公司 | Heating high-resistance electrothermal alloy material |
| CN107720984A (en) * | 2017-10-17 | 2018-02-23 | 高产明 | A kind of preparation method of the low-phosphorous water quality stabilizer of efficient scale corrosion inhibition type |
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Application publication date: 20131204 |