CN104495902A - Method for producing special nano calcium carbonate for tires - Google Patents
Method for producing special nano calcium carbonate for tires Download PDFInfo
- Publication number
- CN104495902A CN104495902A CN201410767687.1A CN201410767687A CN104495902A CN 104495902 A CN104495902 A CN 104495902A CN 201410767687 A CN201410767687 A CN 201410767687A CN 104495902 A CN104495902 A CN 104495902A
- Authority
- CN
- China
- Prior art keywords
- calcium carbonate
- nano
- production method
- nano calcium
- wingdale
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
Abstract
The invention discloses a method for producing special nano calcium carbonate for tires and relates to the technical field of production of nano calcium carbonate. The method comprises the following steps: drying limestone, adding the limestone into a rotary kiln for calcining, hydrolyzing the calcined calcium oxide to generate a calcium hydroxide solution, introducing carbon dioxide gas into the solution, and finally, dewatering and drying, thereby obtaining the nano calcium carbonate powder. The introduction flow of the carbon dioxide is regulated so as to control the generation speed of calcium carbonate, so that the calcium carbonate crystal of the needed particle size is prepared. Therefore, the consumption of carbon dioxide can be reduced, the production cost is reduced, and the prepared nano calcium carbonate has the characteristics of stable quality and high purity.
Description
Technical field:
The present invention relates to nano-calcium carbonate production technical field, be specifically related to the production method that a kind of tire is Nano calcium carbonate dedicated.
Background technology:
Nano-calcium carbonate can be used for all kinds of rubber item, as tire, electric wire, sebific duct, adhesive tape, rubber seal products, damping products and medical and foodstuff rubber products by high filler loading capacity.Relative to ordinary calcium carbonate, the sharpest edges of nano-calcium carbonate show in the strengthening action of rubber elastomer.Much research shows that nano-calcium carbonate showing the effect to elastomerics reinforcement all to some extent in reinforced rubber or non-self reinforced rubber, polar rubber or non-polar rubber, saturated rubber or unsaturation rubber, improves the mechanical property being filled sizing material greatly.In addition, nano-calcium carbonate also has stronger wear resisting property, therefore can be used as the important fill material of tire.
At present, there is the problems such as granularity is comparatively large, rank is wider, quality is unstable, reunion in domestic produced nano-calcium carbonate, this directly affects reinforcement and the wear resisting property of nano-calcium carbonate.Therefore, need badly and develop the Nano calcium carbonate dedicated production method of the controlled tire of a kind of steady quality, granularity.
Summary of the invention:
The production method that the tire that technical problem to be solved by this invention is to provide a kind of technique simple, reasonable in design is Nano calcium carbonate dedicated.
Technical problem to be solved by this invention adopts following technical scheme to realize:
The production method that tire is Nano calcium carbonate dedicated, comprises the steps:
(1) first Wingdale is placed in moisture eliminator, is then warming up to 105-110 DEG C of dry 1-2h;
(2) dried Wingdale is dropped in rotary kiln, heat up after preheater preheats and calcine, again through water cooler cooling after calcining terminates, when temperature is down to below 100 DEG C, the calcium oxide of generation is drawn off;
(3) join in reactor by the calcium oxide of preparation, then add the water of 2-3 times of weight, be warming up to 80-90 DEG C, react 20-30min at this temperature under stirring, reaction terminates rear cooling down, obtains aqua calcis;
(4) join in autoclave by the aqua calcis of preparation, then pass into carbon dioxide, control carbon dioxide flow is 0.1m
3/ h, reacts under room temperature, the stopped reaction when reaction pressure drops to 0.6MPa and keeps 1h constant, obtains white solid, then gained solid is placed in the dry 8-12h of vacuum drier, finally obtain nano-calcium carbonate calcium powder after reaction solution dehydration.
In described Wingdale, the content of calcium carbonate is greater than 80%, and the total content of free silica and aluminum oxide is no more than 5%, and the granularity of Wingdale is 20-40mm, and calcining top temperature is 1100-1200 DEG C.
The granularity of described nano-calcium carbonate calcium powder is about 400nm.
The invention has the beneficial effects as follows: the present invention passes into by regulation of carbon dioxide the formation speed that flow controls calcium carbonate, thus prepare the calcium carbonate crystal body of required particle diameter, can not only reduce the consumption of carbonic acid gas like this, reduce production cost, and the nano-calcium carbonate of preparation has steady quality, feature that purity is high.
Accompanying drawing illustrates:
Fig. 1 is the sreen analysis figure of nano-calcium carbonate of the present invention under magnification is 20,000 times;
Fig. 2 is the sreen analysis figure of nano-calcium carbonate of the present invention under magnification is 60,000 times.
Embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1
The production method that tire is Nano calcium carbonate dedicated, comprises the steps:
(1) first Wingdale is placed in moisture eliminator, is then warming up to 105-110 DEG C of dry 1h;
(2) dropped in rotary kiln by dried Wingdale, heat up and calcine after preheater preheats, calcining top temperature is 1100-1200 DEG C, again through water cooler cooling after calcining terminates, is drawn off by the calcium oxide of generation when temperature is down to below 100 DEG C;
(3) join in reactor by the calcium oxide of preparation, then add the water of 2-3 times of weight, be warming up to 85 DEG C, react 25min at this temperature under stirring, reaction terminates rear cooling down, obtains aqua calcis;
(4) join in autoclave by the aqua calcis of preparation, then pass into carbon dioxide, control carbon dioxide flow is 0.1m
3/ h, reacts under room temperature, the stopped reaction when reaction pressure drops to 0.6MPa and keeps 1h constant, obtains white solid, then gained solid is placed in the dry 10h of vacuum drier, finally obtain nano-calcium carbonate calcium powder after reaction solution dehydration.
Wherein, in Wingdale, the content of calcium carbonate is greater than 80%, and the total content of free silica and aluminum oxide is no more than 5%, and the granularity of Wingdale is 20-40mm.
The granularity of the nano-calcium carbonate calcium powder prepared according to above-mentioned steps is about 400nm, and whiteness is 94%.
Embodiment 2
The production method that tire is Nano calcium carbonate dedicated, comprises the steps:
(1) first Wingdale is placed in moisture eliminator, is then warming up to 105-110 DEG C of dry 2h;
(2) dropped in rotary kiln by dried Wingdale, heat up and calcine after preheater preheats, calcining top temperature is 1100-1200 DEG C, again through water cooler cooling after calcining terminates, is drawn off by the calcium oxide of generation when temperature is down to below 100 DEG C;
(3) join in reactor by the calcium oxide of preparation, then add the water of 2-3 times of weight, be warming up to 90 DEG C, react 30min at this temperature under stirring, reaction terminates rear cooling down, obtains aqua calcis;
(5) join in autoclave by the aqua calcis of preparation, then pass into carbon dioxide, control carbon dioxide flow is 0.1m
3/ h, reacts under room temperature, the stopped reaction when reaction pressure drops to 0.6MPa and keeps 1h constant, obtains white solid, then gained solid is placed in the dry 12h of vacuum drier, finally obtain nano-calcium carbonate calcium powder after reaction solution dehydration.
Wherein, in Wingdale, the content of calcium carbonate is greater than 80%, and the total content of free silica and aluminum oxide is no more than 5%, and the granularity of Wingdale is 20-40mm.
The granularity of the nano-calcium carbonate calcium powder prepared according to above-mentioned steps is about 400nm, and whiteness is 95%.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. the production method that tire is Nano calcium carbonate dedicated, is characterized in that, comprises the steps:
(1) first Wingdale is placed in moisture eliminator, is then warming up to 105-110 DEG C of dry 1-2h;
(2) dried Wingdale is dropped in rotary kiln, heat up after preheater preheats and calcine, again through water cooler cooling after calcining terminates, when temperature is down to below 100 DEG C, the calcium oxide of generation is drawn off;
(3) join in reactor by the calcium oxide of preparation, then add the water of 2-3 times of weight, be warming up to 80-90 DEG C, react 20-30min at this temperature under stirring, reaction terminates rear cooling down, obtains aqua calcis;
(4) join in autoclave by the aqua calcis of preparation, then pass into carbon dioxide, control carbon dioxide flow is 0.1m
3/ h, reacts under room temperature, the stopped reaction when reaction pressure drops to 0.6MPa and keeps 1h constant, obtains white solid, then gained solid is placed in the dry 8-12h of vacuum drier, finally obtain nano-calcium carbonate calcium powder after reaction solution dehydration.
2. the production method that a kind of tire according to claim 1 is Nano calcium carbonate dedicated, is characterized in that: in described Wingdale, the content of calcium carbonate is greater than 80%, and the total content of free silica and aluminum oxide is no more than 5%.
3. the production method that a kind of tire according to claim 1 is Nano calcium carbonate dedicated, is characterized in that: the granularity of described Wingdale is 20-40mm.
4. the production method that a kind of tire according to claim 1 is Nano calcium carbonate dedicated, is characterized in that: described calcining top temperature is 1100-1200 DEG C.
5. the production method that a kind of tire according to claim 1 is Nano calcium carbonate dedicated, is characterized in that: the granularity of described nano-calcium carbonate calcium powder is about 400nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767687.1A CN104495902B (en) | 2014-12-12 | 2014-12-12 | The production method that a kind of tire is Nano calcium carbonate dedicated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767687.1A CN104495902B (en) | 2014-12-12 | 2014-12-12 | The production method that a kind of tire is Nano calcium carbonate dedicated |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104495902A true CN104495902A (en) | 2015-04-08 |
| CN104495902B CN104495902B (en) | 2016-02-03 |
Family
ID=52937383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410767687.1A Active CN104495902B (en) | 2014-12-12 | 2014-12-12 | The production method that a kind of tire is Nano calcium carbonate dedicated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104495902B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948093A (en) * | 2016-04-27 | 2016-09-21 | 深圳市第四能源科技有限公司 | Process for controlling particle size of sulfur-fixation nano calcium carbonate by using static magnetic field |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037214A (en) * | 2007-03-23 | 2007-09-19 | 上海耀华纳米科技有限公司 | Preparation method of novel nano calcium carbonate |
| WO2009081548A1 (en) * | 2007-12-25 | 2009-07-02 | Nihon University | Method for producing nano-sized calcium carbonate |
| CN101880051A (en) * | 2009-05-07 | 2010-11-10 | 河南科力新材料股份有限公司 | Preparation method of suspended nano-calcium carbonate for food |
| CN102701255A (en) * | 2012-06-21 | 2012-10-03 | 石家庄市红日钙业有限公司 | Method for high-concentration carbonization production of spherical nano calcium carbonate |
| WO2014131950A1 (en) * | 2013-02-28 | 2014-09-04 | Nordkalk Oy Ab | Preparation of salt particles from precipitated calcium carbonate |
-
2014
- 2014-12-12 CN CN201410767687.1A patent/CN104495902B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037214A (en) * | 2007-03-23 | 2007-09-19 | 上海耀华纳米科技有限公司 | Preparation method of novel nano calcium carbonate |
| WO2009081548A1 (en) * | 2007-12-25 | 2009-07-02 | Nihon University | Method for producing nano-sized calcium carbonate |
| CN101880051A (en) * | 2009-05-07 | 2010-11-10 | 河南科力新材料股份有限公司 | Preparation method of suspended nano-calcium carbonate for food |
| CN102701255A (en) * | 2012-06-21 | 2012-10-03 | 石家庄市红日钙业有限公司 | Method for high-concentration carbonization production of spherical nano calcium carbonate |
| WO2014131950A1 (en) * | 2013-02-28 | 2014-09-04 | Nordkalk Oy Ab | Preparation of salt particles from precipitated calcium carbonate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948093A (en) * | 2016-04-27 | 2016-09-21 | 深圳市第四能源科技有限公司 | Process for controlling particle size of sulfur-fixation nano calcium carbonate by using static magnetic field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104495902B (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104556184A (en) | Method for producing industrial precipitation-type nano calcium carbonate | |
| CN103555005B (en) | Preparation method of modified kaolin used as rubber reinforcing agent | |
| CN103693669A (en) | Method for preparing nano calcium carbonate special for rolling film | |
| CN101774591B (en) | Production technology of white microsphere high-strength white carbon black | |
| CN107337424B (en) | Preparation method of fiber-reinforced silica aerogel | |
| CN101786633B (en) | Production technology of white microbead-shaped white carbon black | |
| CN103922360B (en) | The technique of the bar-shaped zirconium boride powder of low temperature preparation | |
| CN104495902B (en) | The production method that a kind of tire is Nano calcium carbonate dedicated | |
| CN104403433A (en) | Preparation method for special precipitated calcium carbonate for PVC (polyvinyl chloride) stone chip resistant coating | |
| CN108554370A (en) | A kind of spherical lithium base CO2The preparation method and equipment of adsorbent | |
| CN107159107A (en) | A kind of preparation method of graphene/silicon aeroge compound adsorbent | |
| CN109054768A (en) | A kind of preparation method of paraffin@calcium carbonate phase-change microcapsule | |
| CN106379933A (en) | Preparation method of lithium titanate powder | |
| CN106366577B (en) | A kind of insulating heat-conductive type buoyancy composite material | |
| CN106058310B (en) | A kind of method that gas-solid method synthesizes trisulfides stannic acid lithium material | |
| CN107057112A (en) | The preparation method of graphene/white carbon black composite material | |
| CN101985529A (en) | Process for producing modified superfine attapulgite rubber reinforcing agent | |
| CN205002579U (en) | Automatic control system of drying -machine | |
| CN105271339B (en) | A kind of ρ aoxidizes the preparation method of Al binding agent | |
| CN104498121A (en) | Binder for preparing formed coke by taking semi coke powder as main raw material | |
| CN106744914B (en) | A kind of preparation method of nano graphite flakes | |
| CN104927398A (en) | Preparation method of active light calcium carbonate | |
| CN105565791A (en) | Method for preparing barium ferrite through sol-gel self-propagating combustion | |
| KR100720859B1 (en) | Control of particle size of aragonite precipitated calcium carbonate | |
| CN104403133A (en) | Preparation method of high-strength rubber composite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |