CN103058547A - Preparation method of ethylene glycol water-reducing retarder - Google Patents
Preparation method of ethylene glycol water-reducing retarder Download PDFInfo
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- CN103058547A CN103058547A CN2011103211759A CN201110321175A CN103058547A CN 103058547 A CN103058547 A CN 103058547A CN 2011103211759 A CN2011103211759 A CN 2011103211759A CN 201110321175 A CN201110321175 A CN 201110321175A CN 103058547 A CN103058547 A CN 103058547A
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- ethylene glycol
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Abstract
The invention discloses a preparation method of an ethylene glycol water-reducing retarder, which belongs to the field of chemical building materials. The method disclosed in the invention adopts ethylene glycol, glucose, sodium citrate, sodium pyrophosphate, and a molasses ordinary water-reducing agent as raw materials, and employs a chemical reaction kettle as the reaction vessel to prepare the ethylene glycol water-reducing retarder. The method has the characteristics of simple production process and mild reaction conditions. The obtained product can achieve good retarding and water reducing effects, is suitable to be added into continuous concrete, large volume concrete and ready-mixed concrete, and can make the concrete setting time maintain consistent generally.
Description
Technical field
Product of the present invention belongs to the chemical building material field, relates in particular to a kind of preparation method of ethylene glycol retardation water reducing agent.
Background technology
The effect of concrete retarder is to delay concrete coagulating time and admixture that later strength is had no significant effect, retardant is for continuous concreting under the hot conditions, mass concrete, when ready mixed concrete and pump concrete, in concrete, mix retardant, its objective is in order to prolong the hydration and hardening time of cement, make fresh concrete can keep in a long time plasticity, regulate the time of coagulation of fresh concrete, thereby make continuous concreting, mass concrete, be consistent the time of coagulation of ready mixed concrete as far as possible, pump concrete is unlikely to condense in the pump.Concrete retarder is of a great variety, and complicated component can be divided into organic and inorganic two large classes.The characteristics of organic retardant are that usage quantity is very small, be generally cement quality 100,000/several to ten thousand/several; And the characteristics of inorganic retarder to be volume be generally ten thousand of cement quality/several is to some thousandths of.The retardant kind roughly has following several: 1. contain the organism of hydroxyl; 2. water miscible polyvinyl alcohol; 3. polyol derivative-carbohydrate; 4. the organism that contains carboxylic acid (salt) base; 5. hydroxycarboxylate and aminocarboxylate organism; 6. organic amine and derivative; 7. phosphoric acid salt and phosphonate; 8. boric acid and borate; 9. zinc salt.In order to satisfy the performance requirement of concrete, mortar, generally be re-dubbed retardation water reducing agent, efficient retarding and water reducing agent, slow setting bleed high efficiency water reducing agent etc.The present invention is a kind of ethylene glycol retardation water reducing agent, take ethylene glycol, glucose, Trisodium Citrate, trisodium phosphate, molasses ordinary water-reducing agent as raw material, take chemical reaction kettle as reaction vessel, prepare the ethylene glycol retardation water reducing agent, it is simple to have production technique, and reaction conditions is gentle, and product has good slow setting and water-reducing effect, suitable adding in continuous concreting, mass concrete, the ready mixed concrete can make substantially be consistent concrete time of coagulation.
Summary of the invention
The problem to be solved in the present invention provides the method that a kind of batch prepares the ethylene glycol retardation water reducing agent, this retardation water reducing agent is produced take ethylene glycol, glucose, Trisodium Citrate, trisodium phosphate, molasses ordinary water-reducing agent as raw material, this preparation method's advantage is: it is simple to have production technique, reaction conditions is gentle, product has good slow setting and water-reducing effect, suitable adding in continuous concreting, mass concrete, the ready mixed concrete can make substantially be consistent concrete time of coagulation.The raw material of producing this product use has: ethylene glycol 54%-60%, glucose 8%, Trisodium Citrate 7%, trisodium phosphate 5%, molasses ordinary water-reducing agent 20%-26%.
The present invention can be achieved through the following technical solutions:
A kind of preparation method of ethylene glycol retardation water reducing agent, its feature is made of following steps:
1. ethylene glycol is sent in the chemical reaction kettle, temperature is transferred to 35 ℃, begin to stir, add successively while stirring glucose, Trisodium Citrate, trisodium phosphate, the timed interval of three kinds of raw material interpolations is 0.2 hour, after stirring, leaves standstill insulation reaction 1 hour.
2. keep temperature-resistant, while stirring the molasses ordinary water-reducing agent added chemical reaction kettle, after mixing, stop to stir, leave standstill be cooled to normal temperature after blowing obtain finished product.
The invention has the beneficial effects as follows: the preparation method that a kind of ethylene glycol retardation water reducing agent is provided, this preparation method's technique is simple, reaction conditions is gentle, product has good slow setting and water-reducing effect, suitable adding in continuous concreting, mass concrete, the ready mixed concrete is consistent concrete time of coagulation substantially.
Embodiment
Embodiment 1
Be that 54% ethylene glycol is sent in the chemical reaction kettle with accounting for total amount, temperature is transferred to 35 ℃, begin to stir, to add successively while stirring that to account for total amount be 8% glucose, account for total amount be 7% Trisodium Citrate, account for total amount is 5% trisodium phosphate, the timed interval of three kinds of raw material interpolations is 0.2 hour, after stirring, left standstill insulation reaction 1 hour; Keep temperature-resistant, will account for while stirring total amount and be 26% molasses ordinary water-reducing agent and add chemical reaction kettle, after mixing, stop to stir, leave standstill be cooled to normal temperature after blowing obtain finished product.
Embodiment 2
Be that 57% ethylene glycol is sent in the chemical reaction kettle with accounting for total amount, temperature is transferred to 35 ℃, begin to stir, to add successively while stirring that to account for total amount be 8% glucose, account for total amount be 7% Trisodium Citrate, account for total amount is 5% trisodium phosphate, the timed interval of three kinds of raw material interpolations is 0.2 hour, after stirring, left standstill insulation reaction 1 hour; Keep temperature-resistant, will account for while stirring total amount and be 23% molasses ordinary water-reducing agent and add chemical reaction kettle, after mixing, stop to stir, leave standstill be cooled to normal temperature after blowing obtain finished product.
Embodiment 3
Be that 60% ethylene glycol is sent in the chemical reaction kettle with accounting for total amount, temperature is transferred to 35 ℃, begin to stir, to add successively while stirring that to account for total amount be 8% glucose, account for total amount be 7% Trisodium Citrate, account for total amount is 5% trisodium phosphate, the timed interval of three kinds of raw material interpolations is 0.2 hour, after stirring, left standstill insulation reaction 1 hour; Keep temperature-resistant, will account for while stirring total amount and be 20% molasses ordinary water-reducing agent and add chemical reaction kettle, after mixing, stop to stir, leave standstill be cooled to normal temperature after blowing obtain finished product.
Claims (3)
1. the preparation method of an ethylene glycol retardation water reducing agent is characterized in that: take ethylene glycol 54%-60%, glucose 8%, Trisodium Citrate 7%, trisodium phosphate 5%, molasses ordinary water-reducing agent 20%-26% as raw material, obtain finished product by following steps.
2. the preparation method of a kind of ethylene glycol retardation water reducing agent according to claim 1, the feature of its first step is: ethylene glycol is sent in the chemical reaction kettle, temperature is transferred to 35 ℃, begin to stir, add successively while stirring glucose, Trisodium Citrate, trisodium phosphate, the timed interval of three kinds of raw material interpolations is 0.2 hour, after stirring, leaves standstill insulation reaction 1 hour.
3. the preparation method of a kind of ethylene glycol retardation water reducing agent according to claim 1, the feature of its second step is: keep temperature-resistant, while stirring the molasses ordinary water-reducing agent is added chemical reaction kettle, after mixing, stop to stir, leave standstill be cooled to normal temperature after blowing obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103211759A CN103058547A (en) | 2011-10-21 | 2011-10-21 | Preparation method of ethylene glycol water-reducing retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103211759A CN103058547A (en) | 2011-10-21 | 2011-10-21 | Preparation method of ethylene glycol water-reducing retarder |
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| Publication Number | Publication Date |
|---|---|
| CN103058547A true CN103058547A (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103211759A Pending CN103058547A (en) | 2011-10-21 | 2011-10-21 | Preparation method of ethylene glycol water-reducing retarder |
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| CN (1) | CN103058547A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382130A (en) * | 2017-09-11 | 2017-11-24 | 贵州凯襄新材料有限公司 | Good water reducer of a kind of performance and preparation method thereof |
| CN107619210A (en) * | 2017-09-11 | 2018-01-23 | 贵州凯襄新材料有限公司 | A kind of and good water reducer of cement compatibility and preparation method thereof |
-
2011
- 2011-10-21 CN CN2011103211759A patent/CN103058547A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382130A (en) * | 2017-09-11 | 2017-11-24 | 贵州凯襄新材料有限公司 | Good water reducer of a kind of performance and preparation method thereof |
| CN107619210A (en) * | 2017-09-11 | 2018-01-23 | 贵州凯襄新材料有限公司 | A kind of and good water reducer of cement compatibility and preparation method thereof |
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Application publication date: 20130424 |