CN107954636A - A kind of preparation method of modified ardealite high temperature resistant type cement retarder - Google Patents
A kind of preparation method of modified ardealite high temperature resistant type cement retarder Download PDFInfo
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- CN107954636A CN107954636A CN201711357936.XA CN201711357936A CN107954636A CN 107954636 A CN107954636 A CN 107954636A CN 201711357936 A CN201711357936 A CN 201711357936A CN 107954636 A CN107954636 A CN 107954636A
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- modified
- ardealite
- high temperature
- cement retarder
- resistant type
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- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2103/20—Retarders
- C04B2103/22—Set retarders
Abstract
The invention discloses a kind of preparation method of modified ardealite high temperature resistant type cement retarder, belong to retarder preparing technical field.Ardealite is modified first with red mud, and modified ardealite is sintered under the high temperature conditions, enhance retarding effect of the cement retarder to cement, processing is modified to quartz sand powder by silane coupling agent again, promote to have the quartz sand powder of heat-resisting quantity to be dispersed in resin and ardealite surface, acrylic resin is modified using sodium styrene sulfonate, the rigidity of polymer molecular chain can be improved, modified acrylic acid emulsion and sodium molybdate is recycled to be modified Ludox, form colloidal sol formula structure, promote the structure of base layer finer and close, continuously add coconut oil, aliphatic acid is molecule separate out by ion transit in coconut oil, prevent from corroding further generation, so as to extend the service life of cement retarder, enhance retarding effect of the cement retarder to cement at the same time, it is with a wide range of applications.
Description
Technical field
The invention discloses a kind of preparation method of modified ardealite high temperature resistant type cement retarder, belongs to retarder preparation
Technical field.
Background technology
Cement retarder is that one kind can postpone hydrated reaction of cement, so as to extend the setting time of concrete, makes newly to mix mixed
The solidifying soil long period keeps plasticity, and convenient cast, improves construction efficiency, while later concrete properties will not be caused not
The additive of good influence.
Retarder species is very much, common mainly to have：Lignosulfonates and its derivative, low molecular weight cellulose and its
Derivative, hydroxycarboxylic acid, organic phospho acid, boric acid, compound etc..Both at home and abroad for original retarder there are the defects of carried out not
It is disconnected to improve, some also newly developed retarder.
The species of retarder is by its chemistry into can be divided into two major class of inorganic retarder and organic retarder.From the big of molecular weight
Small or synthetic method angle can be divided into two major classes：Organic compound and polymer.Studying more organic matter mainly has
Machine phosphonic acid.Polymer as retarder is typically oligomer, its molecular weight is generally thousands of, is made more by copolyreaction,
It is containing carboxyl, phosphonate group, sulfonic polymer to study more polymer.Comparatively, hydroxycarboxylic acid, organic phospho acid etc.
Organic species retarder volume is less but more sensitive；And it is larger to polymerize species retarder volume, but volume and thickening time line
Sexual intercourse is preferable.
With the raising of drilling technology and the increase of oilfield exploitation difficulty, drilling well develops to deep-well, ultradeep well, Holes of Complicated Wells,
Bottom hole temperature (BHT) and pressure significantly improve, and oil well cement paste is quickly thickened in well cementing process under high temperature and pressure, can not meet well cementation
The requirement of construction.To ensure construction safety, need to add suitable retarder so that cementing job is safe and smooth in cement mortar
Ground carries out.And corrosion resistance difference and retarding effect are bad, can not meet Cement Market requirement.
Therefore, inventing a kind of modified ardealite high temperature resistant type cement retarder has actively retarder preparing technical field
Meaning.
The content of the invention
The technical problems to be solved by the invention：For current ordinary cement retarder, there are corrosion resistance is poor, high temperature resistant
Property difference and retarding effect it is bad, a kind of the defects of can not meet Cement Market requirement, there is provided modified ardealite high temperature resistant type water
The preparation method of mud retarder.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of preparation method of modified ardealite high temperature resistant type cement retarder, it is characterised in that specifically preparation process is：
（1）Red mud and ardealite are mixed and are put into drying in baking oven, mixture is obtained, pours the mixture into high temperature furnace and calcine,
Cooled to room temperature, grinding discharging, obtains modified ardealite；
（2）Weigh after 36~40g quartzite sand grinds crush and cross 120 mesh sieves, sieving quartz sand powder is collected, by the quartz sand powder that sieves
End and silane coupling agent KH-560 are mixed, and obtain mixture 1, continue to add the Portugal of 1 mass 5% of mixture into mixture 1
The biogas slurry of grape sugar and 1 mass 0.4% of mixture, is fitted into fermentation tank, is sealed by fermentation, and after fermentation, takes out tunning, i.e.,
For Modified Quartz Sand powder；
（3）Weighing 10~12g sodium styrene sulfonate heat temperature raisings makes its softening, and 36 are added into the sodium styrene sulfonate after softening
~42g acrylic resins, 80~100mL deionized waters and the stirring reaction of 1~3g stearoyl lactates, obtain modified propylene yogurt
Liquid, then modified acrylic acid emulsion, Ludox and sodium molybdate are mixed to be placed in stir in beaker and reacted, cooling discharging, is modified
Ludox；
（4）Count in parts by weight, weigh respectively 30~40 parts of modified ardealites, 8~10 parts of Modified Quartz Sand powder, 12~16 parts
Modified silicasol and the mixing of 28~36 parts of deionized waters are placed in mixer and stir, then add 2~4 parts of polyethylene glycol, 1~3 part
Potassium peroxydisulfate and 4~6 portions of coconut oil, continue 1~2h of mixing, drying in baking oven are put into after stirring, grinding discharging, changes to obtain the final product
Property ardealite high temperature resistant type cement retarder.
Step（1）The red mud and the mass ratio of ardealite are 1：4, drying temperature is 95~100 DEG C, and drying time is
35~45min, calcining heat are 700~800 DEG C, and calcination time is 1~2h.
Step（2）The time that grinds is 8~10min, and sieve quartz sand powder and silane coupling agent KH-560
Mass ratio be 3：1, mixing time is 10~12min, and fermentation temperature is 32~36 DEG C, and fermentation time is 8~10 days.
Step（3）The heat temperature raising temperature is 300~320 DEG C, and stirring reaction temperature is 35~45 DEG C, stirring reaction
Time is 12~16min, and the Ludox and the mass ratio of sodium molybdate that modified acrylic acid emulsion, mass fraction are 20% are 2：4：1,
16~20min of reaction is mixed.
Step（4）The whipping temp is 55~65 DEG C, and mixing time is 16~20min, and it is 75 to continue whipping temp
~85 DEG C, continuation mixing time is 1~2h, and drying temperature is 65~75 DEG C, and drying time is 35~45min.
Compared with other methods, advantageous effects are the present invention：
（1）Using modified ardealite as matrix, Modified Quartz Sand powder and modified silicasol are aided with poly- the present invention as reinforcing agent
Modified ardealite high temperature resistant type cement retarder is prepared in ethylene glycol, potassium peroxydisulfate and coconut oil etc., first with red mud pair
Ardealite is modified, and is sintered into modified ardealite under the high temperature conditions, and wherein red mud contains calcium hydroxide and hydration sial
Hydrochlorate, can occur neutralization reaction with the titanium pigment in ardealite and fluorine, while red mud is high calcareous waste residue, has and coheres work
With can absorb part attached water in ardealite, make the reduction of its water content, additionally by calcining red mud and phosphorus at a certain temperature
The mixture of gypsum, makes eutectic phosphorus be converted into sediment, enhances retarding effect of the cement retarder to cement, then pass through silane
Coupling agent is modified processing to quartz sand powder, by modified quartz sand powder and glucose and biogas slurry co-fermentation, profit
To have sticking breakdown of glucose into macromolecular carbohydrate with the microorganism in biogas slurry, and under high temperature action, promote that there is resistance to height
The quartz sand powder of warm nature is dispersed in resin and ardealite surface, and the heat-resisting quantity for being conducive to matrix is improved, from
And improve the heat-resisting quantity of cement retarder；
（2）The present invention is modified acrylic resin using sodium styrene sulfonate, due in sodium styrene sulfonate molecular structure
Phenyl ring there is larger space steric effect, it is possible to increase the rigidity of polymer molecular chain, so as to improve the resistance to height of polymer
Warm nature, the heat-resisting quantity for being conducive to cement retarder are improved, and are in addition connected to sulfonic acid group at phenyl ring contraposition, are not only increased
The water solubility of polymer, also has synergistic effect to the heat-resisting quantity for improving polymer, improves the heat-resisting quantity of cement retarder,
Modified acrylic acid emulsion and sodium molybdate is recycled to be modified Ludox, since the silica in Ludox can be with propylene
Hydroxyl in acid resin crosslinks reaction, forms net structure, while Ludox passes through-OH keys or-O- keys and sodium molybdate
In anion ligand coordination cross-linked reaction occurs, form colloidal sol formula structure, promote the structure of base layer finer and close, effectively
Ground stops the erosion of the corrosive goods confrontation matrix such as outside water and oxygen, and the corrosion resistance for being conducive to cement retarder is carried
Height, continuously adds coconut oil, and in reaction process is stirred, aliphatic acid is molecule separate out by ion transit in coconut oil, and
Absorption is prevented from corroding further generation, so as to extend the service life of cement retarder, had at the active site corroded
Long-acting suppression corrosive power, while retarding effect of the cement retarder to cement is enhanced, it is with a wide range of applications.
Embodiment
It is 1 in mass ratio：4 are put into red mud and ardealite mixing in baking oven, dry 35 at being 95~100 DEG C in temperature~
45min, obtains mixture, pours the mixture into high temperature furnace, and 1~2h, natural cooling are calcined at being 700~800 DEG C in temperature
To room temperature, grinding discharging, obtains modified ardealite；Weigh after 36~40g quartzite sand grinds crush 8~10min and cross 120 mesh sieves,
Sieving quartz sand powder is collected, is 3 in mass ratio by sieving quartz sand powder and silane coupling agent KH-560：1 is mixed 10
~12min, obtains mixture 1, continues to add 1 mass 0.4% of glucose and mixture of 1 mass 5% of mixture into mixture 1
Biogas slurry, be fitted into fermentation tank, be sealed by fermentation 8~10 days under conditions of being 32~36 DEG C in temperature, after fermentation, take out and send out
Ferment product, is Modified Quartz Sand powder；Weighing 10~12g sodium styrene sulfonate and being heated to 300~320 DEG C makes its soft
Change, it is stearic that 36~42g acrylic resins, 80~100mL deionized waters and 1~3g are added into the sodium styrene sulfonate after softening
Acyl lactylate, stirring 12~16min of reaction, obtains modified acrylic acid emulsion at being 35~45 DEG C in temperature, then by modified propylene
The Ludox and sodium molybdate that yogurt liquid, mass fraction are 20% are 2 in mass ratio：4：1 mixing is placed in stirring reaction 16 in beaker
~20min, cooling discharging, obtains modified silicasol；Count in parts by weight, weigh 30~40 parts of modified ardealites, 8~10 respectively
Part Modified Quartz Sand powder, 12~16 parts of modified silicasols and 28~36 parts of deionized waters mixing are placed in mixer, in temperature
To stir 16~20min at 55~65 DEG C, then 2~4 parts of polyethylene glycol, 1~3 part of potassium peroxydisulfate and 4~6 portions of coconut oil are added,
Continue 1~2h of mixing at being 75~85 DEG C in temperature, be put into after stirring in baking oven, dry 35 at being 65~75 DEG C in temperature
~45min, grinding discharging, up to modified ardealite high temperature resistant type cement retarder.
Example 1
It is 1 in mass ratio：4 are put into red mud and ardealite mixing in baking oven, and dry 35min at being 95 DEG C in temperature, is mixed
Compound, pours the mixture into high temperature furnace, 1h is calcined at being 700 DEG C in temperature, cooled to room temperature, grinding discharging, obtains
Modified ardealite；Weigh after 36g quartzite sand grinds crush 8min and cross 120 mesh sieves, collect sieving quartz sand powder, by sieving quartz
Emery dust end and silane coupling agent KH-560 are 3 in mass ratio：1 is mixed 10min, obtains mixture 1, continues to mixture 1
The biogas slurry of middle 1 mass 0.4% of glucose and mixture for adding 1 mass 5% of mixture, is fitted into fermentation tank, is 32 DEG C in temperature
Under conditions of be sealed by fermentation 8 days, after fermentation, take out tunning, be Modified Quartz Sand powder；Weigh 10g styrene
Sodium sulfonate, which is heated to 300 DEG C, makes its softening, and 36g acrylic resins, 80mL are added into the sodium styrene sulfonate after softening
Deionized water and 1g stearoyl lactates, stirring reaction 12min at being 35 DEG C in temperature, obtain modified acrylic acid emulsion, then will
The Ludox and sodium molybdate that modified acrylic acid emulsion, mass fraction are 20% are 2 in mass ratio：4：1 mixing, which is placed in beaker, stirs
Reaction 16min is mixed, cooling discharging, obtains modified silicasol；Count in parts by weight, weigh respectively 30 parts of modified ardealites, 8 parts change
Property quartz sand powder, 12 parts of modified silicasols and 28 parts of deionized waters mixing be placed in mixer, stirred at being 55 DEG C in temperature
16min, then 2 parts of polyethylene glycol, 1 part of potassium peroxydisulfate and 4 portions of coconut oil are added, at being 75 DEG C in temperature continue that 1h is mixed,
It is put into after stirring in baking oven, dry 35min at being 65 DEG C in temperature, grinding discharging, up to modified ardealite high temperature resistant type cement
Retarder.
Example 2
It is 1 in mass ratio：4 are put into red mud and ardealite mixing in baking oven, and dry 40min at being 97 DEG C in temperature, is mixed
Compound, pours the mixture into high temperature furnace, 1.5h is calcined at being 750 DEG C in temperature, cooled to room temperature, grinding discharging, obtains
To modified ardealite；Weigh after 38g quartzite sand grinds crush 9min and cross 120 mesh sieves, sieving quartz sand powder is collected, by the stone that sieves
Sand powder and silane coupling agent KH-560 are 3 in mass ratio：1 is mixed 11min, obtains mixture 1, continues to mixture
The biogas slurry of 1 mass 0.4% of glucose and mixture of 1 mass 5% of mixture is added in 1, is fitted into fermentation tank, is 34 DEG C in temperature
Under conditions of be sealed by fermentation 9 days, after fermentation, take out tunning, be Modified Quartz Sand powder；Weigh 11g styrene
Sodium sulfonate, which is heated to 310 DEG C, makes its softening, and 38g acrylic resins, 90mL are added into the sodium styrene sulfonate after softening
Deionized water and 2g stearoyl lactates, stirring reaction 14min at being 40 DEG C in temperature, obtain modified acrylic acid emulsion, then will
The Ludox and sodium molybdate that modified acrylic acid emulsion, mass fraction are 20% are 2 in mass ratio：4：1 mixing, which is placed in beaker, stirs
Reaction 18min is mixed, cooling discharging, obtains modified silicasol；Count in parts by weight, weigh respectively 35 parts of modified ardealites, 9 parts change
Property quartz sand powder, 14 parts of modified silicasols and 32 parts of deionized waters mixing be placed in mixer, stirred at being 60 DEG C in temperature
18min, then 3 parts of polyethylene glycol, 2 parts of potassium peroxydisulfates and 5 portions of coconut oil are added, continue to be mixed at being 80 DEG C in temperature
1.5h, is put into baking oven after stirring, dry 40min at being 70 DEG C in temperature, grinding discharging, up to modified ardealite high temperature resistant type
Cement retarder.
Example 3
It is 1 in mass ratio：4 are put into red mud and ardealite mixing in baking oven, and dry 45min at being 100 DEG C in temperature, is mixed
Compound, pours the mixture into high temperature furnace, 2h is calcined at being 800 DEG C in temperature, cooled to room temperature, grinding discharging, obtains
Modified ardealite；Weigh after 40g quartzite sand grinds crush 10min and cross 120 mesh sieves, sieving quartz sand powder is collected, by the stone that sieves
Sand powder and silane coupling agent KH-560 are 3 in mass ratio：1 is mixed 12min, obtains mixture 1, continues to mixture
The biogas slurry of 1 mass 0.4% of glucose and mixture of 1 mass 5% of mixture is added in 1, is fitted into fermentation tank, is 36 DEG C in temperature
Under conditions of be sealed by fermentation 10 days, after fermentation, take out tunning, be Modified Quartz Sand powder；Weigh 12g styrene
Sodium sulfonate, which is heated to 320 DEG C, makes its softening, and 42g acrylic resins, 100mL are added into the sodium styrene sulfonate after softening
Deionized water and 3g stearoyl lactates, stirring reaction 16min at being 45 DEG C in temperature, obtain modified acrylic acid emulsion, then will
The Ludox and sodium molybdate that modified acrylic acid emulsion, mass fraction are 20% are 2 in mass ratio：4：1 mixing, which is placed in beaker, stirs
Reaction 20min is mixed, cooling discharging, obtains modified silicasol；Count in parts by weight, weigh respectively 40 parts of modified ardealites, 10 parts
Modified Quartz Sand powder, 16 parts of modified silicasols and 36 parts of deionized water mixing are placed in mixer, are stirred at being 65 DEG C in temperature
20min is mixed, then adds 4 parts of polyethylene glycol, 3 parts of potassium peroxydisulfates and 6 portions of coconut oil, continues to be mixed at being 85 DEG C in temperature
2h, is put into baking oven after stirring, dry 45min at being 75 DEG C in temperature, grinding discharging, up to modified ardealite high temperature resistant type water
Mud retarder.
Comparative example
Changed as a comparison case to produced by the present invention with the modified ardealite high temperature resistant type cement retarder that Nanjing company produces
Property ardealite high temperature resistant type cement retarder and comparative example in modified ardealite high temperature resistant type cement retarder carry out performance inspection
Survey, testing result is as shown in table 1：
1st, test method：
Resistance to elevated temperatures is tested：The cement retarder in the example 1~3 and comparative example that quality is 3% is taken the body such as to be respectively put into respectively
In long-pending cement mortar, it is stirred, is stood in the environment of being 230 DEG C in temperature, measure the thickening time of each cement mortar；
Anticorrosive property test is detected using salt spray test method, and detection method is：By the water in example 1~3 and comparative example
Mud retarder is exposed in salt spray test chamber（5%NaCl）In solution spraying, after 168h, sample is taken out, observes surface corrosion
Situation.
Table 1
| Test event | Example 1 | Example 2 | Example 3 | Comparative example |
| Thickening time（min） | 419 | 428 | 435 | 320 |
| 48h post-etching situations | Do not corrode | Do not corrode | Do not corrode | Take a favourable turn microcorrosion |
| 96h post-etching situations | Do not corrode | Do not corrode | Do not corrode | Take a favourable turn microcorrosion |
| 144h post-etching situations | Do not corrode | Do not corrode | Do not corrode | See obvious corrosion |
| 168h post-etching situations | Take a favourable turn microcorrosion | Do not corrode | Do not corrode | See large stretch of corrosion |
High temperature of the modified ardealite high temperature resistant type cement retarder produced by the present invention at 230 DEG C according to above-mentioned middle data
Under, thickening time length, resistance to elevated temperatures is good, meets the requirement of Cement Market, corrosion resistance and good, the 168h in salt spray test chamber
Afterwards, obvious corrosion is had no, retarding effect is good, has broad application prospects.
Claims (5)
1. a kind of preparation method of modified ardealite high temperature resistant type cement retarder, it is characterised in that specifically preparation process is：
（1）Red mud and ardealite are mixed and are put into drying in baking oven, mixture is obtained, pours the mixture into high temperature furnace and calcine,
Cooled to room temperature, grinding discharging, obtains modified ardealite；
（2）Weigh after 36~40g quartzite sand grinds crush and cross 120 mesh sieves, sieving quartz sand powder is collected, by the quartz sand powder that sieves
End and silane coupling agent KH-560 are mixed, and obtain mixture 1, continue to add the Portugal of 1 mass 5% of mixture into mixture 1
The biogas slurry of grape sugar and 1 mass 0.4% of mixture, is fitted into fermentation tank, is sealed by fermentation, and after fermentation, takes out tunning, i.e.,
For Modified Quartz Sand powder；
（3）Weighing 10~12g sodium styrene sulfonate heat temperature raisings makes its softening, and 36 are added into the sodium styrene sulfonate after softening
~42g acrylic resins, 80~100mL deionized waters and the stirring reaction of 1~3g stearoyl lactates, obtain modified propylene yogurt
Liquid, then modified acrylic acid emulsion, Ludox and sodium molybdate are mixed to be placed in stir in beaker and reacted, cooling discharging, is modified
Ludox；
（4）Count in parts by weight, weigh respectively 30~40 parts of modified ardealites, 8~10 parts of Modified Quartz Sand powder, 12~16 parts
Modified silicasol and the mixing of 28~36 parts of deionized waters are placed in mixer and stir, then add 2~4 parts of polyethylene glycol, 1~3 part
Potassium peroxydisulfate and 4~6 portions of coconut oil, continue 1~2h of mixing, drying in baking oven are put into after stirring, grinding discharging, changes to obtain the final product
Property ardealite high temperature resistant type cement retarder.
2. a kind of preparation method of modified ardealite high temperature resistant type cement retarder according to claim 1, its feature exist
In：Step（1）The red mud and the mass ratio of ardealite are 1：4, drying temperature is 95~100 DEG C, drying time for 35~
45min, calcining heat are 700~800 DEG C, and calcination time is 1~2h.
3. a kind of preparation method of modified ardealite high temperature resistant type cement retarder according to claim 1, its feature exist
In：Step（2）The time that grinds is 8~10min, sieve quartz sand powder and the quality of silane coupling agent KH-560
Than for 3：1, mixing time is 10~12min, and fermentation temperature is 32~36 DEG C, and fermentation time is 8~10 days.
4. a kind of preparation method of modified ardealite high temperature resistant type cement retarder according to claim 1, its feature exist
In：Step（3）The heat temperature raising temperature is 300~320 DEG C, and stirring reaction temperature is 35~45 DEG C, stirs the reaction time
For 12~16min, the Ludox and the mass ratio of sodium molybdate that modified acrylic acid emulsion, mass fraction are 20% are 2：4：1, mixing
16~20min of stirring reaction.
5. a kind of preparation method of modified ardealite high temperature resistant type cement retarder according to claim 1, its feature exist
In：Step（4）The whipping temp is 55~65 DEG C, and mixing time is 16~20min, and it is 75~85 to continue whipping temp
DEG C, continuation mixing time is 1~2h, and drying temperature is 65~75 DEG C, and drying time is 35~45min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706550A (en) * | 2018-07-03 | 2018-10-26 | 贵州大学 | A kind of technique of ardealite and red mud refractory plate coproduction acid |
| CN110981275A (en) * | 2019-12-16 | 2020-04-10 | 宁国市锦泰环保科技有限公司 | Phosphogypsum cement retarder and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389421A (en) * | 2002-07-16 | 2003-01-08 | 武汉理工大学 | Denatured ardealite brick and its application as cement retardant |
| CN103184041A (en) * | 2013-03-07 | 2013-07-03 | 中国石油大学(华东) | Retarder for modified aluminophosphate cement and preparation method |
| CN105347714A (en) * | 2014-08-18 | 2016-02-24 | 天津旺久科技发展有限公司 | Modified phosphogypsum cement retarder |
| CN106085389A (en) * | 2016-06-01 | 2016-11-09 | 西南石油大学 | High temperature-resistance oil well cement retarder and preparation method thereof |
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2017
- 2017-12-17 CN CN201711357936.XA patent/CN107954636A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389421A (en) * | 2002-07-16 | 2003-01-08 | 武汉理工大学 | Denatured ardealite brick and its application as cement retardant |
| CN103184041A (en) * | 2013-03-07 | 2013-07-03 | 中国石油大学(华东) | Retarder for modified aluminophosphate cement and preparation method |
| CN105347714A (en) * | 2014-08-18 | 2016-02-24 | 天津旺久科技发展有限公司 | Modified phosphogypsum cement retarder |
| CN106085389A (en) * | 2016-06-01 | 2016-11-09 | 西南石油大学 | High temperature-resistance oil well cement retarder and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706550A (en) * | 2018-07-03 | 2018-10-26 | 贵州大学 | A kind of technique of ardealite and red mud refractory plate coproduction acid |
| CN110981275A (en) * | 2019-12-16 | 2020-04-10 | 宁国市锦泰环保科技有限公司 | Phosphogypsum cement retarder and preparation method thereof |
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