CN108609892A - A method of making water-reducing agent using paper mill effluent - Google Patents
A method of making water-reducing agent using paper mill effluent Download PDFInfo
- Publication number
- CN108609892A CN108609892A CN201810522410.0A CN201810522410A CN108609892A CN 108609892 A CN108609892 A CN 108609892A CN 201810522410 A CN201810522410 A CN 201810522410A CN 108609892 A CN108609892 A CN 108609892A
- Authority
- CN
- China
- Prior art keywords
- water
- reducing agent
- reaction kettle
- paper mill
- minutes
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/161—Macromolecular compounds comprising sulfonate or sulfate groups
- C04B24/166—Macromolecular compounds comprising sulfonate or sulfate groups obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G16/00—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00
- C08G16/02—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes
- C08G16/04—Chemically modified polycondensates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Abstract
The present invention provides a kind of methods making water-reducing agent using paper mill effluent, and water, sodium sulfite, acetone are placed in reaction kettle and mixed 30 minutes at 30 35 DEG C；Paper mill effluent and catalyst are added into reaction kettle, is reacted 50 70 minutes at 50 60 DEG C；Formaldehyde is added dropwise into reaction kettle, time for adding is 60 90 minutes；Controlled at reacting 2 2.5 hours at 90 105 DEG C；Sodium gluconate is added into reaction kettle, controlled at 90 105 DEG C, reacts 30 minutes.Each raw material dosage % numbers by weight are calculated as：Sodium sulfite 50 55%；Acetone 35 40%；Formaldehyde 110 125%；Paper mill effluent (content of lignin 30 35%, wt%) 200 230%；Boron trifluoride ether 2 3%；Sodium gluconate 3 5%；Water 110 130%.This method preparation time is short, and made water-reducing agent water-reducing rate is high.
Description
Technical field
The present invention relates to concrete admixture preparation fields, specifically a kind of to make water-reducing agent using paper mill effluent
Method.
Background technology
Many with water in paper making process, production 1t paper about needs 300~500m3 of water, in paper waste, not only contain
A large amount of paper making raw materials (there are about 20% raw materials to be lost in waste water), and contain a large amount of chemicals and other impurities, so if
Paper waste can cause great harm water body without arbitrary discharge is handled.It is useless using paper mill that the present invention provides a kind of
The method that liquid makes water-reducing agent can produce one kind and subtract again while reducing paper mill effluent and causing damages to environment water
The high water-reducing agent of water rate complies fully with strategy and policy and the requirement of China's sustainable development.
Invention content
1, it present invention aim to provide a kind of method making water-reducing agent using paper mill effluent, is prepared with simplifying
Technique shortens preparation time and improves the water-reducing rate of made water-reducing agent, to satisfy the use demand for this purpose, the present invention is using as follows
Technical solution：
2, the invention is realized in this way：A kind of modified aliphatic water reducing agent preparation method, includes the following steps：
(1) water, sodium sulfite, acetone are placed in reaction kettle and are mixed 30 minutes at 30-35 DEG C；
(2) paper mill effluent and catalyst boron trifluoride ether are added into reaction kettle, reacts 50-70 at 50-60 DEG C
Minute；
(3) formaldehyde is added dropwise into reaction kettle, time for adding is 60-90 minutes；Controlled at reacting 2- at 90-105 DEG C
2.5 hour；
(4) sodium gluconate is added in reaction kettle, controlled at 90-105 DEG C, reacts 30 minutes.
Each raw material dosage % numbers by weight are calculated as：
The method of the present invention has the following advantages that：
1, preparation method total duration of the invention is 4-4.5 hour, and the reaction time is obviously shortened.
2, the present invention uses boron trifluoride ether as catalyst so that preparation process of the invention can directly utilize papermaking
Factory's waste liquid is as raw materials for production, to effectively reduce production cost.Meanwhile the use of the catalyst makes the present invention
The 2nd step reaction do not need external heat source, reacting liquid temperature can be made to reach 50-60 DEG C by autoreactivity heat.
3, sodium gluconate is added in the phase to preparation method of the invention after the reaction, can be effectively improved this water-reducing agent and cement
Adaptation.
4, it is using the present invention it is a kind of using paper mill effluent make the method for water-reducing agent with naphthalene water reducer is compound answers
Used time generates synergistic effect, and respectively than the two performance when exclusive use has raising by a relatively large margin.
Specific implementation mode
Embodiment one
1, a kind of method making water-reducing agent using paper mill effluent, by each raw material of following weight weighing：Sodium sulfite
50kg, acetone 35kg, formaldehyde 110kg, paper mill effluent (content of lignin 30%, wt%) 230kg, boron trifluoride ether 2kg,
Sodium gluconate 3kg, water 110kg.It follows these steps to prepare a kind of side making water-reducing agent using paper mill effluent of the invention
Method：
(1) water, sodium sulfite, acetone are placed in reaction kettle and are mixed 30 minutes at 30-35 DEG C；
(2) paper mill effluent and catalyst boron trifluoride ether are added into reaction kettle, 50 points are reacted at 50-60 DEG C
Clock；
(3) formaldehyde is added dropwise into reaction kettle, time for adding is 60 minutes；It is small controlled at reaction 2.5 at 90-105 DEG C
When；
(4) sodium gluconate is added into reaction kettle, controlled at 90-105 DEG C, reaction can be prepared by containing for 30 minutes
Gu amount is 34.5% modified aliphatic water reducing agent.
The made water-reducing agent of the present embodiment meets the standard of GB8076-2008 after tested.By GB8076-2008 test methods,
The made water-reducing agent of the present embodiment and common fats race water-reducing agent concrete batching performance comparison are as shown in table 1, material therefor：Taihang
42.5# ordinary portland cements.
It can be seen that by the test data of table 1：The present embodiment is made a kind of to make water-reducing agent using paper mill effluent
When method is with naphthalene water reducer Application of composite, synergistic effect is generated, the performance indicators such as water-reducing rate, compressive strength rate are than the two
There is raising by a relatively large margin when being respectively used alone.And when general water-reducing agent and naphthalene water reducer Application of composite, then it does not generate this
Synergistic effect.
2 flowing degree of net paste of cement of table compares
Table 2 shows that the made modified aliphatic water reducing agent paste flowing degree of the present invention is not only above common fats race water-reducing agent,
And also above the flowing degree of net paste of cement for adding sodium gluconate again to the common fats race water-reducing agent of finished product.Thus illustrate,
The made modified aliphatic water reducing agent of the present invention can be effectively improved the adaptation of this water-reducing agent and cement.
Embodiment two
By each raw material of following weight weighing：
Sodium sulfite 55kg, acetone 40kg, formaldehyde 125kg, paper mill effluent (content of lignin 35%, wt%) 200kg,
Boron trifluoride ether is 3kg, sodium gluconate 5kg, water 130kg.
It follows these steps to prepare modified aliphatic water reducing agent preparation method of the invention：
(1) water, sodium sulfite, acetone are placed in reaction kettle and are mixed 30 minutes at 30-35 DEG C；
(2) paper mill effluent and catalyst boron trifluoride ether are added into reaction kettle, 70 points are reacted at 50-60 DEG C
Clock；
(3) formaldehyde is added dropwise into reaction kettle, time for adding is 90 minutes；Controlled at reacting 2 hours at 90-105 DEG C；
(4) sodium gluconate is added into reaction kettle, controlled at 90-105 DEG C, reaction can be prepared by containing for 30 minutes
Gu amount is 35.8% modified aliphatic water reducing agent.
Embodiment three
By each raw material of following weight weighing：
Sodium sulfite 55kg, acetone 30kg, formaldehyde 110kg, paper mill effluent (content of lignin 35%, wt%) 230kg,
Boron trifluoride ether 2kg, sodium gluconate 3kg, water 110kg.
It follows these steps to prepare modified aliphatic water reducing agent preparation method of the invention：
(1) water, sodium sulfite, acetone are placed in reaction kettle and are mixed 30 minutes at 30-35 DEG C；
(2) paper mill effluent and catalyst boron trifluoride ether are added into reaction kettle, 50 points are reacted at 50-60 DEG C
Clock；
(3) formaldehyde is added dropwise into reaction kettle, time for adding is 90 minutes；It is small controlled at reaction 2.5 at 90-105 DEG C
When；
(4) sodium gluconate is added into reaction kettle, controlled at 90-105 DEG C, reaction can be prepared by containing for 30 minutes
Gu amount is 36.4% modified aliphatic water reducing agent.
Claims (1)
1. a kind of method making water-reducing agent using paper mill effluent, it is characterised in that include the following steps：
(1) water, sodium sulfite, acetone are placed in reaction kettle and are mixed 30 minutes at 30-35 DEG C；
(2) paper mill effluent and catalyst boron trifluoride ether are added into reaction kettle, is reacted 50-70 minutes at 50-60 DEG C；
(3) formaldehyde is added dropwise into reaction kettle, time for adding is 60-90 minutes；It is small to control reaction 2-2.5 at 90-105 DEG C of temperature
When；Temperature is to be reacted 2-2.5 hours at 90-105 DEG C；
(4) sodium gluconate is added into reaction kettle, controlled at 90-105 DEG C, reacts 30 minutes；
Each raw material dosage % numbers by weight are calculated as：
Sodium sulfite：45-50%；
Acetone：35-45%；
Formaldehyde：95-110%；
Paper mill effluent (content of lignin 30%-35%, wt%)：180-200%；
Boron trifluoride ether：3.5-5%；
Sodium gluconate：4-6%；
Water：90-110%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810522410.0A CN108609892A (en) | 2018-05-28 | 2018-05-28 | A method of making water-reducing agent using paper mill effluent |
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| CN201810522410.0A CN108609892A (en) | 2018-05-28 | 2018-05-28 | A method of making water-reducing agent using paper mill effluent |
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| CN201810522410.0A Pending CN108609892A (en) | 2018-05-28 | 2018-05-28 | A method of making water-reducing agent using paper mill effluent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180046A (en) * | 2018-11-14 | 2019-01-11 | 遵义古匡坝建材有限责任公司 | A method of high efficiency water reducing agent is made using lignin |
| CN109180047A (en) * | 2018-11-14 | 2019-01-11 | 遵义古匡坝建材有限责任公司 | A method of polycarboxylate water-reducer is made using lignin |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320768A (en) * | 2011-06-20 | 2012-01-18 | 河北久强建材有限公司 | Method for preparing modified aliphatic water reducing agent |
-
2018
- 2018-05-28 CN CN201810522410.0A patent/CN108609892A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320768A (en) * | 2011-06-20 | 2012-01-18 | 河北久强建材有限公司 | Method for preparing modified aliphatic water reducing agent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180046A (en) * | 2018-11-14 | 2019-01-11 | 遵义古匡坝建材有限责任公司 | A method of high efficiency water reducing agent is made using lignin |
| CN109180047A (en) * | 2018-11-14 | 2019-01-11 | 遵义古匡坝建材有限责任公司 | A method of polycarboxylate water-reducer is made using lignin |
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Application publication date: 20181002 |