CN108948792A - 一种适于聚合物生产的微粉碳酸钙的制备方法 - Google Patents
一种适于聚合物生产的微粉碳酸钙的制备方法 Download PDFInfo
- Publication number
- CN108948792A CN108948792A CN201810445048.1A CN201810445048A CN108948792A CN 108948792 A CN108948792 A CN 108948792A CN 201810445048 A CN201810445048 A CN 201810445048A CN 108948792 A CN108948792 A CN 108948792A
- Authority
- CN
- China
- Prior art keywords
- calcium carbonate
- micro mist
- steam
- preparation
- flow
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/021—Calcium carbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/045—Agglomeration, granulation, pelleting
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
-
- 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
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/19—Oil-absorption capacity, e.g. DBP values
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
本发明公开了一种适于聚合物生产的微粉碳酸钙的制备方法,包括以下步骤:粗碎和粉碎;蒸汽气流磨进行粉碎;通入蒸汽;气流干燥机中干燥,即得微粉碳酸钙。本发明生产得率高,且能提高大大提高微粉碳酸钙与聚合物的相容性。
Description
技术领域
本发明涉及一种碳酸钙的制备方法,尤其是一种适于聚合物生产的微粉碳酸钙的制备方法。
背景技术
重质碳酸钙,一般是由天然碳酸盐矿物如方解石、大理石和石灰石粉碎而制得,重钙具有白度高、纯度好、色相柔和等特点,因此被广泛用于人造地砖、橡胶、塑料、造纸、涂料、油漆、油墨、电缆、建筑用品、食品、医药、纺织、饲料、牙膏等行业,通常用作填充剂,或者是补强剂。
根据碳酸钙粉体平均粒径(d)的大小,可以将碳酸钙分为微粒碳酸钙(d>5μm)、微粉碳酸钙(1μm<d<5μm)、微细碳酸钙(0.1μm<d≤1μm)、超细碳酸钙(0.02μm<d≤0.1μm)和超微细碳酸钙(d≤0.02μm)。
目前重质碳酸钙一般采用干法生产工艺流程和湿法工艺流程,干法生产工艺流程是先将方解石等原料用破碎机进行粗破碎,再用雷蒙(摆式)磨粉碎得到细石灰石粉,租后用分级机分级,湿法工艺流程是先将干法细粉制成悬浮液置于磨机内进一步粉碎,经脱水、干燥后边制得超细重质碳酸钙。但是上述生产方法得到的碳酸钙具有亲水疏油的性质,与橡胶、塑料制品基体材料的亲和性较差,导致聚合物的材料强度不足、稳定性较差。
发明内容
本发明公开了一种适于聚合物生产的微粉碳酸钙的制备方法,生产得率高,且能提高其与聚合物的相容性。
为实现上述目的,本发明的技术方案为:
一种适于聚合物生产的微粉碳酸钙的制备方法,包括以下步骤:
S1. 对方解石原料进行粗碎和粉碎,得到100~200目的方解石粉体;
S2.将方解石粉体送入蒸汽气流磨进行粉碎,蒸汽气流磨中,过热蒸汽的温度为200℃~235℃、压力为0.8MPa~1MPa,粉碎后分级得粒径为0.3~5μm超微粉体;
S3.将超微粉体放置于蒸汽室中,通入蒸汽3~10min,蒸汽的成分由乙腈、二氧化碳和水组成;
S4.将蒸汽处理后的超微粉体放入气流干燥机中干燥,即得微粉碳酸钙。
优选的,所述步骤S3中,蒸汽的温度为90~100℃。
优选的,所述步骤S3中,乙腈蒸汽的流量为1~5g/min,二氧化碳的流量为5~15/min,水的流量为20~30g/min。更优选的,所述步骤S4中,乙腈蒸汽的流量为2g/min,二氧化碳的流量为6 g/min,水的流量为25g/min。
优选的,所述步骤S4中,气流干燥机中干燥管的温度为100~120℃、气流速度为20~30m/s。
以上所述的适于聚合物生产的微粉碳酸钙的制备方法,具有以下优点:
(1)本发明采用蒸汽气流磨进行粉碎,以水蒸气为介质对方解石粉体进行气流粉碎,粉碎速度快,产品得率高,经筛分99.5%达到粒径要求。
(2)本发明通过通入乙腈、二氧化碳及水蒸汽对粉体进行表面改性,能大大减少碳酸钙在干燥过程中发生团聚现象的几率,且还能进一步改善粉体的吸油性,并使其能与橡胶、塑料制品等聚合物基体材料具有较好的相容性,从而帮助提高下游产品的强度、稳定性。
(3)本发明通过采用气流干燥机对碳酸钙进行干燥,加快了干燥的速度,也能避免干燥过后需再次进行回抖的问题。
具体实施方式
以下将结合具体实施例对本发明作进一步说明,但本发明的保护范围不限于以下实施例。
实施例1
一种适于聚合物生产的微粉碳酸钙的制备方法,包括以下步骤:
S1. 对方解石原料进行粗碎和粉碎,得到100~200目的方解石粉体;
S2.将方解石粉体送入蒸汽气流磨进行粉碎,蒸汽气流磨中,过热蒸汽的温度为220℃、压力为1MPa,粉碎后分级得粒径为0.3~5μm超微粉体;
S3.将超微粉体放置于蒸汽室中,通入蒸汽8min,蒸汽由以下成分组成:乙腈蒸汽的流量为2g/min,二氧化碳的流量为6 g/min,水的流量为25g/min,温度为95℃;
S4.将蒸汽处理后的超微粉体放入气流干燥机中干燥,气流干燥机中干燥管的温度为105℃、气流速度为25m/s,干燥后即得微粉碳酸钙。
实施例2
一种适于聚合物生产的微粉碳酸钙的制备方法,包括以下步骤:
S1. 对方解石原料进行粗碎和粉碎,得到100~200目的方解石粉体;
S2.将方解石粉体送入蒸汽气流磨进行粉碎,蒸汽气流磨中,过热蒸汽的温度为200℃、压力为0.9MPa,粉碎后分级得粒径为0.3~5μm超微粉体;
S3.将超微粉体放置于蒸汽室中,通入蒸汽3min,蒸汽由以下成分组成:乙腈蒸汽的流量为5g/min,二氧化碳的流量为15 g/min,水的流量为30g/min,温度为90℃;
S4.将蒸汽处理后的超微粉体放入气流干燥机中干燥,气流干燥机中干燥管的温度为100℃、气流速度为30m/s,干燥后即得微粉碳酸钙。
实施例3
一种适于聚合物生产的微粉碳酸钙的制备方法,包括以下步骤:
S1. 对方解石原料进行粗碎和粉碎,得到100~200目的方解石粉体;
S2.将方解石粉体送入蒸汽气流磨进行粉碎,蒸汽气流磨中,过热蒸汽的温度为235℃、压力为1MPa,粉碎后分级得粒径为0.3~5μm超微粉体;
S3.将超微粉体放置于蒸汽室中,通入蒸汽10min,蒸汽由以下成分组成:乙腈蒸汽的流量为1g/min,二氧化碳的流量为5 g/min,水的流量为20g/min,温度为100℃;
S4.将蒸汽处理后的超微粉体放入气流干燥机中干燥,气流干燥机中干燥管的温度为120℃、气流速度为20m/s,干燥后即得微粉碳酸钙。
实施例4
一种适于聚合物生产的微粉碳酸钙的制备方法,包括以下步骤:
S1. 对方解石原料进行粗碎和粉碎,得到100~200目的方解石粉体;
S2.将方解石粉体送入蒸汽气流磨进行粉碎,蒸汽气流磨中,过热蒸汽的温度为220℃、压力为1MPa,粉碎后分级得粒径为0.3~5μm超微粉体;
S3.超微粉体放入气流干燥机中干燥,气流干燥机中干燥管的温度为105℃、气流速度为25m/s,干燥后即得微粉碳酸钙。
上述实施例1~3中,干燥后所得的微粉碳酸钙无需回抖,经检测粒径均在0.3~5μm之间,无团聚现象。
上述实施例1~3制得的微粉碳酸钙,与实施例4制得的微粉碳酸钙相比,得到实施例1制备的微粉碳酸钙比实施例4制备的微粉碳酸钙吸油值降低了52.1%,沉降体积降低了66.9%,粘度降低了60.5%,堆积密度降低14.9%;得到实施例2制备的微粉碳酸钙比实施例4制备的微粉碳酸钙吸油值降低了49.6%,沉降体积降低了60.2%,粘度降低了53.9%,堆积密度降低13.1%;得到实施例2制备的微粉碳酸钙比实施例4制备的微粉碳酸钙吸油值降低了50.3%,沉降体积降低了63.7%,粘度降低了58.1%,堆积密度降低13.6%。这说明改性后的微粉碳酸钙与聚合物具有很好的相容性,且堆积密度变小,能证明碳酸钙分散性能好,不易团聚。
Claims (5)
1.一种适于聚合物生产的微粉碳酸钙的制备方法,其特征在于包括以下步骤:
S1. 对方解石原料进行粗碎和粉碎,得到100~200目的方解石粉体;
S2.将方解石粉体送入蒸汽气流磨进行粉碎,蒸汽气流磨中,过热蒸汽的温度为200℃~235℃、压力为0.8MPa~1MPa,粉碎后分级得粒径为0.3~5μm超微粉体;
S3.将超微粉体放置于蒸汽室中,通入蒸汽3~10min,蒸汽的成分由乙腈、二氧化碳和水组成;
S4.将蒸汽处理后的超微粉体放入气流干燥机中干燥,即得微粉碳酸钙。
2.根据权利要求1所述的适于聚合物生产的微粉碳酸钙的制备方法,其特征在于:所述步骤S3中,蒸汽的温度为90~100℃。
3.根据权利要求1所述的适于聚合物生产的微粉碳酸钙的制备方法,其特征在于:所述步骤S3中,乙腈蒸汽的流量为1~5g/min,二氧化碳的流量为5~15/min,水的流量为20~30g/min。
4.根据权利要求1所述的适于聚合物生产的微粉碳酸钙的制备方法,其特征在于:所述步骤S4中,气流干燥机中干燥管的温度为100~120℃、气流速度为20~30m/s。
5. 根据权利要求3所述的适于聚合物生产的微粉碳酸钙的制备方法,其特征在于:所述步骤S4中,乙腈蒸汽的流量为2g/min,二氧化碳的流量为6 g/min,水的流量为25g/min。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810445048.1A CN108948792A (zh) | 2018-05-10 | 2018-05-10 | 一种适于聚合物生产的微粉碳酸钙的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810445048.1A CN108948792A (zh) | 2018-05-10 | 2018-05-10 | 一种适于聚合物生产的微粉碳酸钙的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108948792A true CN108948792A (zh) | 2018-12-07 |
Family
ID=64499180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810445048.1A Pending CN108948792A (zh) | 2018-05-10 | 2018-05-10 | 一种适于聚合物生产的微粉碳酸钙的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108948792A (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101775238A (zh) * | 2010-01-29 | 2010-07-14 | 大连友兰企业集团有限公司 | 活性超细研磨碳酸钙加工方法 |
CN104744971A (zh) * | 2015-03-04 | 2015-07-01 | 江西科越科技有限公司 | 湿法超微细改性碳酸钙制备工艺 |
CN105348861A (zh) * | 2015-10-23 | 2016-02-24 | 谭乔 | 一种功能碳酸钙粉体及其生产方法 |
CN206652581U (zh) * | 2017-04-11 | 2017-11-21 | 福建弘高石粉综合利用有限公司 | 一种用于对矿石粉体进行粉碎的微粉冲击磨机 |
-
2018
- 2018-05-10 CN CN201810445048.1A patent/CN108948792A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101775238A (zh) * | 2010-01-29 | 2010-07-14 | 大连友兰企业集团有限公司 | 活性超细研磨碳酸钙加工方法 |
CN104744971A (zh) * | 2015-03-04 | 2015-07-01 | 江西科越科技有限公司 | 湿法超微细改性碳酸钙制备工艺 |
CN105348861A (zh) * | 2015-10-23 | 2016-02-24 | 谭乔 | 一种功能碳酸钙粉体及其生产方法 |
CN206652581U (zh) * | 2017-04-11 | 2017-11-21 | 福建弘高石粉综合利用有限公司 | 一种用于对矿石粉体进行粉碎的微粉冲击磨机 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6320043B1 (en) | Process for preparing fine-particle polysaccharide derivatives | |
CN104403266B (zh) | 含氨基树脂的碳酸钙粉体改性剂 | |
CN106497143B (zh) | 一种利用大理石废料回收重钙粉的方法 | |
CN104403246A (zh) | 超细碳酸钙粉体缩醛改性剂 | |
JP2013519625A (ja) | 制御された粒径を有している層状フィロシリケートを製造する方法および当該方法によって得られた生成物 | |
CN108467053A (zh) | 一种绒球碳酸钙纳米混晶颗粒的制备方法 | |
CN104371376A (zh) | 缩水甘油醚超细碳酸钙粉体助剂 | |
JP6779132B2 (ja) | 軽質炭酸カルシウムの組成物、その製造方法、及び、その使用 | |
CN108889426A (zh) | 一种采用气流磨制备微粉碳酸钙的方法 | |
CN108948792A (zh) | 一种适于聚合物生产的微粉碳酸钙的制备方法 | |
CN110451545B (zh) | 一种pe透气膜用棒状碳酸钙的制备方法 | |
CN108190935A (zh) | 一种条片状碳酸钙超细颗粒的制备方法 | |
US6872820B2 (en) | Finely divided polysaccharide derivatives | |
TWI574918B (zh) | 包含高壓實步驟之沉澱矽石之製造方法 | |
CN108752979A (zh) | 一种湿法制备超微细碳酸钙的方法 | |
CN108929570A (zh) | 一种湿法生产超微细碳酸钙的方法 | |
CN104194402A (zh) | 一种超细碳酸钙的制备方法 | |
CN111712332B (zh) | 用于降低碱土金属碳酸盐中的水分含量的方法 | |
CN103923350B (zh) | 一种白云石粉间层插位硅钙复合材料制备方法 | |
CN108867161A (zh) | 一种适于造纸的微粉碳酸钙的制备方法 | |
CN108137940B (zh) | 制备矿物填料产品的方法 | |
CN104371375A (zh) | 乙烯基三丁酮肟基硅烷超细碳酸钙粉体助剂 | |
CN108084739A (zh) | 一种超细碳酸钙的干式制备工艺 | |
CN110964343A (zh) | 一种超白碳酸钙 | |
CN109575643A (zh) | 一种纳米碳酸钙的改性方法及含纳米碳酸钙的磷酸酯类组合物 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |
|
RJ01 | Rejection of invention patent application after publication |