CN107724171A - A kind of Nano calcium carbonate dedicated preparation method of papermaking - Google Patents
A kind of Nano calcium carbonate dedicated preparation method of papermaking Download PDFInfo
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- CN107724171A CN107724171A CN201710916453.2A CN201710916453A CN107724171A CN 107724171 A CN107724171 A CN 107724171A CN 201710916453 A CN201710916453 A CN 201710916453A CN 107724171 A CN107724171 A CN 107724171A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
- D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
- C01F11/183—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds the additive being an organic compound
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/09—Sulfur-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; Derivatives thereof
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
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Abstract
The present invention relates to technical field of chemical material preparation, more particularly to a kind of Nano calcium carbonate dedicated preparation method of papermaking, a) calcium oxide is made in lime stone with calciner, and the suspension for being prepared into calcium hydroxide will be aoxidized, sodium acid carbonate and fatty acid amide ageing are added in suspension；B) obtained calcium bicarbonate suspension in step a) is taken to add coagent stearic acid, it is passed through after carbon dioxide and nitrogen are mixed in reactor and carries out carburizing reagent, and add crystal control agent, until during reacting slurry pH=7, stop ventilation, obtain nano-calcium carbonate slurry；C) obtained nano-calcium carbonate slurry in step b) is taken to add；D) scattered nano-calcium carbonate slurry is subjected to press filtration, drying, crushing, sieving, you can.The obtained nano-calcium carbonate use of the present invention makes obtained paper have good printing, obscurity, flatness and whiteness in papermaking.
Description
【Technical field】
The present invention relates to technical field of chemical material preparation, and in particular to a kind of Nano calcium carbonate dedicated preparation side of papermaking
Method.
【Background technology】
Nano-calcium carbonate is also known as super fine calcium carbonate, and the title of standard is calcium carbonate superfine powder, nano-calcium carbonate application most into
Ripe industry is that plastics industry is mainly used in high-grade plastic products.Nano-calcium carbonate can improve the rheological characteristic of plastic matrix, carry
Its high mouldability, it is used as having the function that during plastic filler toughened and reinforced, and can improve the bending strength of plastics, the elasticity of flexure
Modulus, heat distortion temperature and dimensional stability, while it is stagnant hot also to assign plastics.Nano-calcium carbonate is when in for ink product
Excellent dispersed and transparent, fabulous gloss and excellent ink absorption and high drying property are embodied.And nanometer
When calcium carbonate makees ink filler in resin type ink, with stability is good, glossiness is high, does not influence the drying property of printing-ink
The advantages that energy, strong adaptability.Specifically, nano-calcium carbonate is consolidated as a kind of Novel super-thin to grow up the 1980s
Body dusty material, its granularity is between 10~100nm.Due to the fine of Nano particles of calcium carbonate, its crystal structure and table
Face electronic structure changes, and generates quantum size effect, small-size effect, skin effect that ordinary calcium carbonate does not have
And macroscopic quantum effect.
The shape of nano-calcium carbonate and the species of modified product are more, there is spindle, cube, aciculiform, chain shape and ball
The shapes such as shape.Wherein flake nano carbonic acid calcium with its stronger surface coating functions and covering power, and good dispersive property,
Optical property and printing, are widely used in paper industry；Spherical nanometer calcium carbonate is simple in construction, stacking volume is small, oil factor
Low, with good flatness, mobility, opacity is high, strong to ink absorption；Cube nano-calcium carbonate is simple in construction,
Stacking volume is small, good fluidity, in paper, shows very high obscurity, flatness and whiteness.So prepare a kind of vertical
The nano-calcium carbonate that square, spherical and sheet mixes by a certain percentage with meet the needs of papermaking be at present required for.
【The content of the invention】
In order to solve the above problems, the technical solution adopted by the present invention is as follows：
A kind of Nano calcium carbonate dedicated preparation method of papermaking, comprises the following steps：
A) calcium oxide is made in lime stone with calciner, and calcium oxide is put into slurry container and prepares mass percent
Concentration is the suspension of 12-15% calcium hydroxides, and sodium acid carbonate and fatty acid amide ageing 1-2 hours are added in suspension；
B) take obtained calcium bicarbonate suspension in step a) to add coagent stearic acid, then put into reactor,
It is passed through after carbon dioxide and nitrogen are mixed in reactor and carries out carburizing reagent when reacting slurry pH=10-11, is stopped logical
Gas, adds sodium acid carbonate, maleic acid, sucrose and citric acid are used as crystalline form accelerator, is passed through mixing for carbon dioxide and nitrogen again
Gas is closed when reacting slurry pH=7, stops ventilation, obtains nano-calcium carbonate slurry；
C) obtained nano-calcium carbonate slurry in step b) is taken to add the dispersant that weight is weight of calcium carbonate 0.1-1%,
Still aging 1-2 hours obtain scattered nano-calcium carbonate slurry after stirring；
D) scattered nano-calcium carbonate slurry is subjected to press filtration, drying, crushing, sieving, that is, obtains product of the present invention.
Further, the dispersant is made up of following raw material by weight：Adipic acid 1-7 parts, DBSA
Sodium 3-8 parts, hydroxyethyl methacrylate 2-9 parts and polyethylene glycol 15-20 parts.
Further, sodium acid carbonate and the 2-3% that fatty acid amide addition is calcium oxide weight in ageing process, wherein
Sodium acid carbonate and fatty acid amide weight ratio are 3-8:1.
Further, the dispersant is made up of following raw material by weight：Adipic acid 2-5 parts, DBSA
Sodium 4-6 parts, hydroxyethyl methacrylate 3-7 parts and polyethylene glycol 16-18 parts.
Further, the stearic weight of the coagent is the 1%~2% of calcium oxide weight.
Further, the carbon dioxide and nitrogen mixed proportion are 2-3:1.
Further, the Aging Temperature is 50-60 DEG C.
Further, add crystalline form and promote dosage as the 2%~3% of calcium oxide weight.
Further, the sodium acid carbonate in crystalline form accelerator, maleic acid, sucrose and citric acid weight ratio are 1:1:1:1.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows：
When above-mentioned each raw material addition is in scope defined above, prepared dispersant energy will be by nano-calcium carbonate
Half parcel or full parcel, so as to effectively improve dispersiveness and suspension of the nano-calcium carbonate particles in water or organic solvent.
The present invention is according to calcium carbonate and the characteristic applied in papermaking, using crystal formation, the particle size of control nano-calcium carbonate, by old
Sodium acid carbonate is added during change and crystalline form modification is played in fatty acid amide ageing, promotes reaching maturity for crystal.Carbonization is anti-
Sodium acid carbonate, maleic acid, sucrose and citric acid control nano-calcium carbonate crystalline form are being added in answering, is founding obtained nano-calcium carbonate
Square, aciculiform and spherical ratio stabilize to 2:3：3, the addition and digestion time for controlling sodium acid carbonate can effectively control crystal
Size difference it is uniform.Present invention production nano-calcium carbonate effectively increases it and applied in papermaking, has obtained paper
Good printing, obscurity, flatness and whiteness.
【Embodiment】
For a better understanding of the present invention, technical scheme is described in detail with instantiation below, but originally
Invention is not limited thereto.
Embodiment 1：
A kind of Nano calcium carbonate dedicated preparation method of papermaking, comprises the following steps：
A) calcium oxide is made in lime stone with calciner, and calcium oxide is put into slurry container and prepares mass percent
Concentration is the suspension of 12% calcium hydroxide, adds sodium acid carbonate by the 2% of calcium oxide weight in suspension and fatty acid amide adds
Mixture is 50 DEG C in temperature and is aged 1 hour that wherein sodium acid carbonate and fatty acid amide weight ratio is 3:1；
B) obtained calcium bicarbonate suspension in step a) is taken to add coagent stearic acid, stearic weight is oxidation
The 1% of calcium weight；Then put into reactor, it is straight that progress carburizing reagent in reactor is passed through after carbon dioxide and nitrogen are mixed
During to reacting slurry pH=10, stop ventilation and add crystalline form promotion dosage by the 2%~3% of calcium oxide weight, be passed through two again
The mixed gas of carbonoxide and nitrogen stops ventilation, obtains nano-calcium carbonate slurry when reacting slurry pH=7；Titanium dioxide
Carbon is 2 with nitrogen mixed proportion:1.The crystalline form accelerator is by weight being than for 1:1:1:1 sodium acid carbonate, maleic acid, sugarcane
Sugar and citric acid composition.C) obtained nano-calcium carbonate slurry in step b) is taken to add point of the weight for weight of calcium carbonate 0.1%
Powder, obtain within still aging 1 hour after stirring scattered nano-calcium carbonate slurry；
D) scattered nano-calcium carbonate slurry is subjected to press filtration, drying, crushing, sieving, that is, obtains product of the present invention.
Dispersant is made up of following raw material by weight：1 part of adipic acid, 3 parts of neopelex, methacrylic acid
15 parts of 2 parts of hydroxyl ethyl ester and polyethylene glycol.
Embodiment 2：
A kind of Nano calcium carbonate dedicated preparation method of papermaking, comprises the following steps：
A) calcium oxide is made in lime stone with calciner, and calcium oxide is put into slurry container and prepares mass percent
Concentration is the suspension of 15% calcium hydroxide, adds sodium acid carbonate by the 3% of calcium oxide weight in suspension and fatty acid amide adds
Mixture is 60 DEG C in temperature and is aged 2 hours that wherein sodium acid carbonate and fatty acid amide weight ratio is 8:1；
B) obtained calcium bicarbonate suspension in step a) is taken to add coagent stearic acid, stearic weight is oxidation
The 2% of calcium weight；Then put into reactor, it is straight that progress carburizing reagent in reactor is passed through after carbon dioxide and nitrogen are mixed
During to reacting slurry pH=11, stop ventilation, adding crystalline form by the 2%~3% of calcium oxide weight promotes dosage, is passed through two again
The mixed gas of carbonoxide and nitrogen stops ventilation, obtains nano-calcium carbonate slurry when reacting slurry pH=7；Titanium dioxide
Carbon is 3 with nitrogen mixed proportion:1；The crystalline form accelerator is by weight being than for 1:1:1:1 sodium acid carbonate, maleic acid, sugarcane
Sugar and citric acid composition.
C) obtained nano-calcium carbonate slurry in step b) is taken to add the dispersant that weight is weight of calcium carbonate 1%, stirring
Scattered nano-calcium carbonate slurry is obtained within still aging 2 hours after uniformly；
D) scattered nano-calcium carbonate slurry is subjected to press filtration, drying, crushing, sieving, that is, obtains product of the present invention.
Dispersant is made up of following raw material by weight：7 parts of adipic acid, 8 parts of neopelex, methacrylic acid
20 parts of 9 parts of hydroxyl ethyl ester and polyethylene glycol.
Embodiment 3：
A kind of Nano calcium carbonate dedicated preparation method of papermaking, comprises the following steps：
A) calcium oxide is made in lime stone with calciner, and calcium oxide is put into slurry container and prepares mass percent
Concentration is the suspension of 13% calcium hydroxide, and sodium acid carbonate and fatty acid amide are added by the 2.5% of calcium oxide weight in suspension
Add mixture to be aged 1.5 hours for 55 DEG C in temperature, wherein sodium acid carbonate and fatty acid amide weight ratio is 6:1；
B) obtained calcium bicarbonate suspension in step a) is taken to add coagent stearic acid, stearic weight is oxidation
The 1.5% of calcium weight；Then put into reactor, be passed through after carbon dioxide and nitrogen are mixed in reactor and carry out carburizing reagent
Until during reacting slurry pH=11, stop ventilation, adding crystalline form by the 2%~3% of calcium oxide weight promotes dosage, is passed through again
The mixed gas of carbon dioxide and nitrogen stops ventilation, obtains nano-calcium carbonate slurry when reacting slurry pH=7；Dioxy
It is 2.5 to change carbon with nitrogen mixed proportion:1.The crystalline form accelerator is by weight being than for 1:1:1:1 sodium acid carbonate, Malaysia
Acid, sucrose and citric acid composition.
C) take obtained nano-calcium carbonate slurry in step b) to add the dispersant that weight is weight of calcium carbonate 0.6%, stir
Scattered nano-calcium carbonate slurry is obtained within still aging 2 hours after mixing uniformly；
D) scattered nano-calcium carbonate slurry is subjected to press filtration, drying, crushing, sieving, that is, obtains product of the present invention.
Dispersant is made up of following raw material by weight：5 parts of adipic acid, 6 parts of neopelex, methacrylic acid
17 parts of 7 parts of hydroxyl ethyl ester and polyethylene glycol.
Embodiment 4：
A kind of Nano calcium carbonate dedicated preparation method of papermaking, comprises the following steps：
A) calcium oxide is made in lime stone with calciner, and calcium oxide is put into slurry container and prepares mass percent
Concentration is the suspension of 14% calcium hydroxide, adds sodium acid carbonate by the 3% of calcium oxide weight in suspension and fatty acid amide adds
Mixture is 52 DEG C in temperature and is aged 1 hour that wherein sodium acid carbonate and fatty acid amide weight ratio is 7:1；
B) obtained calcium bicarbonate suspension in step a) is taken to add coagent stearic acid, stearic weight is oxidation
The 2% of calcium weight；Then put into reactor, it is straight that progress carburizing reagent in reactor is passed through after carbon dioxide and nitrogen are mixed
During to reacting slurry pH=11, stop ventilation, adding crystalline form by the 2%~3% of calcium oxide weight promotes dosage, is passed through two again
The mixed gas of carbonoxide and nitrogen stops ventilation, obtains nano-calcium carbonate slurry when reacting slurry pH=7；Titanium dioxide
Carbon is 3 with nitrogen mixed proportion:1.The crystalline form accelerator is by weight being than for 1:1:1:1 sodium acid carbonate, maleic acid, sugarcane
Sugar and citric acid composition.
C) obtained nano-calcium carbonate slurry in step b) is taken to add the dispersant that weight is weight of calcium carbonate 1%, stirring
Scattered nano-calcium carbonate slurry is obtained within still aging 2 hours after uniformly；
D) scattered nano-calcium carbonate slurry is subjected to press filtration, drying, crushing, sieving, that is, obtains product of the present invention.
Dispersant is made up of following raw material by weight：2 parts of adipic acid, 4 parts of neopelex, methacrylic acid
16 parts of 3 parts of hydroxyl ethyl ester and polyethylene glycol.
Embodiment 5：
A kind of Nano calcium carbonate dedicated preparation method of papermaking, comprises the following steps：
A) calcium oxide is made in lime stone with calciner, and calcium oxide is put into slurry container and prepares mass percent
Concentration is the suspension of 123% calcium hydroxide, and sodium acid carbonate and fatty acid amide are added by the 2-3% of calcium oxide weight in suspension
Add mixture to be aged 1.5 hours for 55 DEG C in temperature, wherein sodium acid carbonate and fatty acid amide weight ratio is 6:1；
B) obtained calcium bicarbonate suspension in step a) is taken to add coagent stearic acid, stearic weight is oxidation
The 2% of calcium weight；Then put into reactor, it is straight that progress carburizing reagent in reactor is passed through after carbon dioxide and nitrogen are mixed
During to reacting slurry pH=11, stop ventilation, adding crystalline form by the 2%~3% of calcium oxide weight promotes dosage, is passed through two again
The mixed gas of carbonoxide and nitrogen stops ventilation, obtains nano-calcium carbonate slurry when reacting slurry pH=7；Titanium dioxide
Carbon is 3 with nitrogen mixed proportion:1.The crystalline form accelerator is by weight being than for 1:1:1:1 sodium acid carbonate, maleic acid, sugarcane
Sugar and citric acid composition.
C) take obtained nano-calcium carbonate slurry in step b) to add the dispersant that weight is weight of calcium carbonate 0.5%, stir
Scattered nano-calcium carbonate slurry is obtained within still aging 2 hours after mixing uniformly；
D) scattered nano-calcium carbonate slurry is subjected to press filtration, drying, crushing, sieving, that is, obtains product of the present invention.
Dispersant is made up of following raw material by weight：5 parts of adipic acid, 6 parts of neopelex, methacrylic acid
18 parts of 7 parts of hydroxyl ethyl ester and polyethylene glycol.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, the equal change completed or modification change under the technical spirit suggested by all present invention, all should belong to
Cover the scope of the claims in the present invention.
Claims (9)
1. a kind of Nano calcium carbonate dedicated preparation method of papermaking, it is characterised in that comprise the following steps：
A) calcium oxide is made in lime stone with calciner, and calcium oxide is put into slurry container and prepares mass percent concentration
For the suspension of 12-15% calcium hydroxides, sodium acid carbonate and fatty acid amide ageing 1-2 hours are added in suspension；
B) take obtained calcium bicarbonate suspension in step a) to add coagent stearic acid, then put into reactor, by two
It is passed through after carbonoxide and nitrogen mixing in reactor and carries out carburizing reagent when reacting slurry pH=10-11, is stopped ventilation, add
Enter sodium acid carbonate, maleic acid, sucrose and citric acid as crystalline form accelerator, be passed through the mixed gas of carbon dioxide and nitrogen again
Until during reacting slurry pH=7, stop ventilation, obtain nano-calcium carbonate slurry；
C) obtained nano-calcium carbonate slurry in step b) is taken to add the dispersant that weight is weight of calcium carbonate 0.1-1%, stirring
Standing 1-2 hours obtain scattered nano-calcium carbonate slurry after uniformly；
D) scattered nano-calcium carbonate slurry is subjected to press filtration, drying, crushing, sieving, that is, obtains product of the present invention.
2. the Nano calcium carbonate dedicated preparation method of papermaking according to claim 1, it is characterised in that：The dispersant is by weight
Gauge is made up of following raw material：Adipic acid 1-7 parts, neopelex 3-8 parts, hydroxyethyl methacrylate 2-9 parts and
Polyethylene glycol 15-20 parts.
3. the Nano calcium carbonate dedicated preparation method of papermaking according to claim 1, it is characterised in that：The carbon in ageing process
Sour hydrogen sodium and fatty acid amide addition are the 2-3% of calcium oxide weight, and wherein sodium acid carbonate and fatty acid amide weight ratio is 3-8:
1。
4. the Nano calcium carbonate dedicated preparation method of papermaking according to claim 2, it is characterised in that：The dispersant is by weight
Gauge is made up of following raw material：Adipic acid 2-5 parts, neopelex 4-6 parts, hydroxyethyl methacrylate 3-7 parts and
Polyethylene glycol 16-18 parts.
5. the Nano calcium carbonate dedicated preparation method of papermaking according to claim 1, it is characterised in that：The coagent is hard
The weight of resin acid is the 1%~2% of calcium oxide weight.
6. the Nano calcium carbonate dedicated preparation method of papermaking according to claim 1, it is characterised in that：The carbon dioxide with
Nitrogen mixed proportion is 2-3:1.
7. the Nano calcium carbonate dedicated preparation method of papermaking according to claim 1, it is characterised in that：The Aging Temperature is
50-60℃。
8. the Nano calcium carbonate dedicated preparation method of papermaking according to claim 1, it is characterised in that：Add in the step b)
Enter crystalline form and promote dosage as the 2%~3% of calcium oxide weight.
9. the Nano calcium carbonate dedicated preparation method of papermaking according to claim 8, it is characterised in that：In crystalline form accelerator
Sodium acid carbonate, maleic acid, sucrose and citric acid weight ratio are 1:1:1:1.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179472A (en) * | 2018-09-30 | 2019-01-11 | 南昌航空大学 | A kind of method that marble wastes prepare high whiteness calcium carbide of different crystal formation powder |
| CN110132787A (en) * | 2019-06-04 | 2019-08-16 | 福建省联盛纸业有限责任公司 | A kind of detection method of paper grade (stock) agstone |
| CN111573704A (en) * | 2020-04-28 | 2020-08-25 | 广西夏阳环保科技有限公司 | Preparation method of high-purity nano calcium hydroxide |
| CN111573707A (en) * | 2020-04-30 | 2020-08-25 | 广西夏阳环保科技有限公司 | Preparation method of calcium carbonate filler special for papermaking |
| CN111960453A (en) * | 2020-07-07 | 2020-11-20 | 广西夏阳环保科技有限公司 | Preparation method of nano calcium carbonate for water-based paint |
| CN114212814A (en) * | 2021-12-16 | 2022-03-22 | 浙江大学 | Preparation method of nano calcium carbonate |
| EP4116260A1 (en) * | 2021-07-08 | 2023-01-11 | Imertech Sas | Method of preparation of calcium carbonate slurries |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1631789A (en) * | 2003-12-24 | 2005-06-29 | 上海华明高技术（集团）有限公司 | Method for preparing nano calcium carbonate particle |
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| CN1631789A (en) * | 2003-12-24 | 2005-06-29 | 上海华明高技术（集团）有限公司 | Method for preparing nano calcium carbonate particle |
| CN1724378A (en) * | 2005-06-24 | 2006-01-25 | 上海华明高技术（集团）有限公司 | Process for preparing submicron grade superfine calcium carbonate dispersion particle |
| CN103663527A (en) * | 2012-09-25 | 2014-03-26 | 上海华明高技术（集团）有限公司 | Preparation method of cubic ultra-fine calcium carbonate particles |
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| CN109179472A (en) * | 2018-09-30 | 2019-01-11 | 南昌航空大学 | A kind of method that marble wastes prepare high whiteness calcium carbide of different crystal formation powder |
| CN110132787A (en) * | 2019-06-04 | 2019-08-16 | 福建省联盛纸业有限责任公司 | A kind of detection method of paper grade (stock) agstone |
| CN111573704A (en) * | 2020-04-28 | 2020-08-25 | 广西夏阳环保科技有限公司 | Preparation method of high-purity nano calcium hydroxide |
| CN111573704B (en) * | 2020-04-28 | 2023-01-06 | 都安春旭新材料科技有限责任公司 | Preparation method of high-purity nano calcium hydroxide |
| CN111573707A (en) * | 2020-04-30 | 2020-08-25 | 广西夏阳环保科技有限公司 | Preparation method of calcium carbonate filler special for papermaking |
| CN111960453A (en) * | 2020-07-07 | 2020-11-20 | 广西夏阳环保科技有限公司 | Preparation method of nano calcium carbonate for water-based paint |
| EP4116260A1 (en) * | 2021-07-08 | 2023-01-11 | Imertech Sas | Method of preparation of calcium carbonate slurries |
| WO2023281011A1 (en) * | 2021-07-08 | 2023-01-12 | Imertech Sas | Calcium carbonate slurries |
| CN114212814A (en) * | 2021-12-16 | 2022-03-22 | 浙江大学 | Preparation method of nano calcium carbonate |
| CN114212814B (en) * | 2021-12-16 | 2023-08-01 | 浙江大学 | Preparation method of nano calcium carbonate |
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