JPS62171920A - Production of readily dispersible colloidal calcium carbonate - Google Patents
Production of readily dispersible colloidal calcium carbonateInfo
- Publication number
- JPS62171920A JPS62171920A JP1110786A JP1110786A JPS62171920A JP S62171920 A JPS62171920 A JP S62171920A JP 1110786 A JP1110786 A JP 1110786A JP 1110786 A JP1110786 A JP 1110786A JP S62171920 A JPS62171920 A JP S62171920A
- Authority
- JP
- Japan
- Prior art keywords
- lime
- milk
- calcium carbonate
- substance
- carbon dioxide
- 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
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 45
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 21
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 20
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 18
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims abstract description 6
- PXEDJBXQKAGXNJ-QTNFYWBSSA-L disodium L-glutamate Chemical compound [Na+].[Na+].[O-]C(=O)[C@@H](N)CCC([O-])=O PXEDJBXQKAGXNJ-QTNFYWBSSA-L 0.000 claims abstract description 5
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 5
- 235000013923 monosodium glutamate Nutrition 0.000 claims abstract description 4
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 4
- 229940073490 sodium glutamate Drugs 0.000 claims abstract description 4
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims abstract description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims abstract description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims abstract description 3
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims abstract description 3
- 235000015165 citric acid Nutrition 0.000 claims abstract description 3
- 239000001630 malic acid Substances 0.000 claims abstract description 3
- 235000011090 malic acid Nutrition 0.000 claims abstract description 3
- 239000011975 tartaric acid Substances 0.000 claims abstract description 3
- 235000002906 tartaric acid Nutrition 0.000 claims abstract description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims abstract 2
- 229930006000 Sucrose Natural products 0.000 claims abstract 2
- 239000005720 sucrose Substances 0.000 claims abstract 2
- 239000000203 mixture Substances 0.000 claims description 4
- 239000012047 saturated solution Substances 0.000 claims description 4
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 abstract description 3
- 235000010216 calcium carbonate Nutrition 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 239000011555 saturated liquid Substances 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- ZDXPYRJPNDTMRX-UHFFFAOYSA-N glutamine Natural products OC(=O)C(N)CCC(N)=O ZDXPYRJPNDTMRX-UHFFFAOYSA-N 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 235000013808 oxidized starch Nutrition 0.000 description 1
- 239000001254 oxidized starch Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-N sodium;hydron;carbonate Chemical compound [Na+].OC(O)=O UIIMBOGNXHQVGW-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C01F11/182—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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は石灰乳を炭酸化して分散性のよい粒径０．１〜
１．０μｍの膠質炭酸カルシウムを、１！！造する方法
に関するものである。[Detailed description of the invention] [Industrial field of application] The present invention carbonates milk of lime to produce particles with a particle size of 0.1 to 0.1 with good dispersibility.
1.0μm colloid calcium carbonate, 1! ! It is about the method of building.
従来沈降製炭酸カルシウムの製法にはｃａｃｚ２および
Ｎ ａ ２ ＣＯａを原料とする溶液法と、石灰乳に炭
酸ガスを反応させる炭酸ガス化合法とがあシ、さらに後
者の場合、石灰乳に炭酸ガスを導入する方法と、炭酸ガ
ス飽和液中九石灰乳を添加反応させる方法とが行なわれ
ている（特開昭５０−３０９８号参照）。Conventional methods for producing precipitated calcium carbonate include a solution method using cacz2 and N a 2 COa as raw materials, and a carbonation method in which milk of lime is reacted with carbon dioxide gas, and in the latter case, milk of lime is reacted with carbon dioxide gas. Two methods have been used: one is to introduce milk of nine lime into a carbon dioxide saturated solution, and the other is to react by adding milk of nine lime to a carbon dioxide gas-saturated solution (see JP-A-50-3098).
〔発明の解決しようとする問題点３
本法はこの炭酸ガス飽和液中に石灰乳の一部炭酸化した
連鎖状粒子を添加反ろさせる方法に係シ、易分散性の均
一な０．１〜１０μｍの炭酸カルシウムを得るため、そ
の反応条件を一定範囲に規定し、第１及び第２物質を添
加する事によってはじめて安定均−に所期の目的を達成
し得るものである。[Problem to be Solved by the Invention 3] This method relates to a method of adding partially carbonated chain-like particles of milk of lime to this carbon dioxide gas-saturated liquid and causing it to curl. In order to obtain calcium carbonate of ~10 .mu.m, the desired purpose can only be achieved stably and uniformly by defining the reaction conditions within a certain range and adding the first and second substances.
〔問題点を解決するための手段・作用〕本発明の詳細な
説明すると、先ず第１物質であるグルタミンばソーダ、
ＥＤＴＡ硫酸塩または庶楯筐たはそれらの混合Ｗを０．
１〜０，５部／石灰乳１００部添加した４５〜５０ｔｌ
：、１０〜１５係の範囲に規定した石灰乳に炭酸ガスを
導入して、１５〜２０係まで一部炭酸化する事により塩
基性度の高い連鎖状粒子を作る。[Means and effects for solving the problems] To explain the present invention in detail, first, glutamine soda, which is the first substance,
0.0% EDTA sulfate or a mixture thereof.
1-0.5 parts/45-50 tl with 100 parts of milk of lime added
: By introducing carbon dioxide gas into the milk of lime specified in the range of 10 to 15 parts and partially carbonating it to 15 to 20 parts, chain particles with high basicity are made.
この懸濁液を第２！ｗ質であるリンゴ酸、クエン酸、酒
石酸、ポリアクリル酸ソーダまたは重炭酸塩またはこれ
らの混合物の０．１〜１．０部／石灰乳１００部を添加
した炭酸ガス飽和液中に、ｐＨを９〜１１に保ち乍ら連
続添加し、最終濃度が５〜６重ｔ％になった時点でｐＨ
を７以下にし、脱水。This suspension is the second one! 0.1 to 1.0 parts of malic acid, citric acid, tartaric acid, sodium polyacrylate, bicarbonate, or a mixture thereof/100 parts of milk of lime were added to a carbon dioxide saturated solution, and the pH was adjusted. Continuously add while maintaining the pH at 9 to 11, and when the final concentration reaches 5 to 6 wt%,
Reduce it to 7 or less and dehydrate.
乾燥、解砕する事によシ粒径０．１〜１．０μｍの炭酸
カルシウムを製造する方法である。This method produces calcium carbonate with a particle size of 0.1 to 1.0 μm by drying and crushing.
本発明には５つの要素があシ、この３要素が満足されな
ければ所期の易分散性膠質炭酸カルシウムを製造する事
は困難である。There are five elements in the present invention, and unless these three elements are satisfied, it is difficult to produce the desired easily dispersible colloidal calcium carbonate.
即ち一部炭酸化した石灰乳を炭酸ガス飽和液中に連続添
加する方法において、
１）温度、濃度を規定した石灰乳に、
２）第１物質を添加し、
３）炭酸ガス飽和液には第２物質を添加する、の３要素
を同時に満足させる事が必要充分条件である。That is, in a method in which partially carbonated milk of lime is continuously added to a carbon dioxide saturated liquid, 1) a first substance is added to the milk of lime at a specified temperature and concentration, and 3) a liquid is added to the carbon dioxide saturated liquid. It is a necessary and sufficient condition to simultaneously satisfy the three elements of adding the second substance.
これらの条件を満たさない場合、即ち、第１、第２物質
を使用して石灰乳温度が４５℃、濃度が１０％未満の場
合、生成する炭酸カルシウム０．１μｍ未満の粒径にな
シ、通常の手段では乾燥時の凝集が激しく、易分散性の
粉体を得る事が困難である。If these conditions are not met, that is, when the first and second substances are used, the lime milk temperature is 45 ° C., and the concentration is less than 10%, the produced calcium carbonate has a particle size of less than 0.1 μm, With conventional methods, agglomeration during drying is severe and it is difficult to obtain easily dispersible powder.
また、第１、第２物質の一方または両者を使用しない場
合は勿論両者を使用しても温度が４５℃、濃度が１５％
を超える場合は生成炭酸カルシウムの粒径が１μｍを超
える大粒子とな夛膠質炭酸カルシウムを得る事は出来な
い。In addition, if one or both of the first and second substances are not used, and even if both are used, the temperature is 45°C and the concentration is 15%.
If it exceeds 1 μm, it will not be possible to obtain large particles of colloidal calcium carbonate with a particle size of more than 1 μm.
易分散性の粒径が０．１〜１．０μｍの炭酸カルシウム
については種々の有効利用法が考えられ、特に製紙用塗
工剤、シーリング材、プラスチック用充填剤、塗料用等
使用に際し大きな剪断力のかからない分野では、特にそ
の易分散性による優れた機能を発揮し得るものである。Calcium carbonate, which is easily dispersible and has a particle size of 0.1 to 1.0 μm, can be used in various effective ways, especially when used as a coating agent for paper manufacturing, a sealant, a filler for plastics, a filler for plastics, a paint, etc. In fields where no force is applied, it can exhibit excellent functionality due to its easy dispersibility.
次にその実施例及び応用の一例を示す。Next, an example of its implementation and application will be shown.
実施例１
グルタミン酸ソーダを０．３部／石灰乳１００部添加し
た４７℃、１２％濃度の石灰乳１７７１ｊに、３０容量
係濃度の炭酸ガスを導入して、１７優まで炭酸化した後
、１ｒＩ？の炭酸ガス飽和水にポリアクリル酸ソーダを
０．５部／石灰乳１００部添加した別の６ぜ攪拌器反応
器に、炭酸ガスの導入を続は乍らｐＨを１０に保ちっつ
簡々と添加する。最終濃度が５９！になった時点で添加
を終了し、さらに炭酸ガスを導入してＩ）Ｈ７まで中和
する。Example 1 Carbon dioxide gas with a concentration of 30% by volume was introduced into milk of lime 1771j with a concentration of 12% at 47°C to which 0.3 parts of sodium glutamate/100 parts of milk of lime was added, and after carbonation to 17%, 1rI ? 0.5 part of sodium polyacrylate/100 parts of milk of lime was added to carbon dioxide gas-saturated water, and then carbon dioxide gas was introduced into another 6-gear stirrer reactor while keeping the pH at 10. and add. Final concentration is 59! The addition is terminated when the temperature reaches 100%, and carbon dioxide gas is further introduced to neutralize to I) H7.
かくして得た炭酸カルシウム懸濁液をフィルタープレス
で脱水後、”乾燥、解砕する事によ）粒径０．３μｍの
分散性膠質炭酸カルシウムを得た。The thus obtained calcium carbonate suspension was dehydrated using a filter press, and then "dried and crushed" to obtain dispersible colloidal calcium carbonate having a particle size of 0.3 μm.
実施例２ ゛
実施例１と同様の手段で、グルタミン酸ソーダ０．３ｍ
＋７）代、！１ｌｌＫＦ、ＤＴＡを０．５部使用し、４
５℃。Example 2 ゛By the same means as in Example 1, 0.3 m of sodium glutamate was added.
+7) generation! 1llKF, using 0.5 parts of DTA, 4
5℃.
１０％の石灰乳に、炭酸ガスを導入して１５チまで炭酸
化した後、重炭酸ソーダを１．０部添加した別の反厄液
にｐＨを１０に保ち乍ら添加し、最終濃度が５優になる
迄反応を続ける方法により、粒径０．１μｍの易分散性
膠質炭酸カルシウムを得た。10% milk of lime was carbonated to 15% by introducing carbon dioxide gas, and then added to another anti-poison liquid containing 1.0 part of bicarbonate of soda while maintaining the pH at 10 until the final concentration was 5%. Easily dispersible colloidal calcium carbonate with a particle size of 0.1 μm was obtained by continuing the reaction until the particle size was 0.1 μm.
比較例１
実施例１でグルタミン酸ソーダを添加しない場合に粒径
１．７μｍの炭酸カルシウムを得た。Comparative Example 1 Calcium carbonate having a particle size of 1.7 μm was obtained in the same manner as in Example 1 without adding sodium glutamate.
比較例２
実施例１でポリアクリル酸ソーダを添加しない場合に粒
径１．２μｍの炭酸カルシウムを得た。Comparative Example 2 Calcium carbonate having a particle size of 1.2 μm was obtained in the same manner as in Example 1 without adding sodium polyacrylate.
比較例３
実施例１で石灰乳の温度が６０℃の場合に粒径１．５μ
ｍの炭酸カルシウムを得た。Comparative Example 3 In Example 1, when the temperature of milk of lime was 60°C, the particle size was 1.5μ.
m of calcium carbonate was obtained.
応用例
実施例１，２及び比較例１〜３で得た炭酸カルシウムの
水系分散体を紙塗工に応用した結果を示す。Application Examples The results of applying the calcium carbonate aqueous dispersions obtained in Examples 1 and 2 and Comparative Examples 1 to 3 to paper coating are shown below.
配合
酸化殿粉（日本食品に、に、：ＭＳ＄４６００）
７ ｔｔラテックス（ＪＳＲＯ６９６）
ｊ ３ ｔｒ上記配合の塗被カラーを市販上質紙
上にコーティングパーを用いて手塗りし、１０５±１℃
で３分間乾燥した後、２０℃、６０％ＲＨの恒温恒湿室
で２４時間調湿した。Combined oxidized starch (Japanese Foods, Ni,: MS$4600)
7 tt latex (JSRO696)
j 3 tr The above-mentioned coating color was hand-coated onto commercially available high-quality paper using a coating parlor, and heated to 105±1°C.
After drying for 3 minutes, the humidity was controlled in a constant temperature and humidity room at 20° C. and 60% RH for 24 hours.
塗被量は何れも２０±１ ｊｉ ／ｒｎゝである。The coating amount was 20±1 ji/rn in each case.
得られた塗被紙の性質を次に示す。The properties of the coated paper obtained are shown below.
本発明の製造法によって得られた易分散性膠質炭酸カル
シウムは塗工紙用填剤として白紙光沢および印刷光沢に
おいて非常に顕著な効果を発揮するものである。The easily dispersible colloidal calcium carbonate obtained by the production method of the present invention exhibits a very remarkable effect as a filler for coated paper in terms of white paper gloss and print gloss.
１、 事件の表示 昭和６１年特許願第１１１０７号 ２、 発明の名称 易分散性膠質炭酸カルシウムの製造法 ３、 補正をする者 ４、 代理人1. Display of incident 1986 Patent Application No. 11107 2. Name of the invention Production method of easily dispersible colloid calcium carbonate 3. Person making the amendment 4. Agent
Claims (1)
基性度の高い連鎖状粒子を作り、この懸濁液を第２物質
含有炭酸ガス飽和溶液中に連続添加することを特徴とす
る易分散性膠質炭酸カルシウムの製造法。 ２）第１物質が、グルタミン酸ソーダ、ＥＤＴＡ硫酸塩
または庶糖の何れかまたはそれらの混合物である特許請
求の範囲第１項記載の易分散性膠質炭酸カルシウムの製
造法。 ３）第２物質がリンゴ酸、クエン酸、酒石酸、ポリアク
リル酸ソーダまたは重炭酸塩の何れかまたはそれらの混
合物である特許請求の範囲第１項記載の易分散性膠質炭
酸カルシウムの製造法。 ４）石灰乳に第１物質を添加した後、一部炭酸化する反
応を温度４５〜５０℃、濃度１０〜１５重量％で行う特
許請求の範囲第１項記載の易分散性膠質炭酸カルシウム
の製造法。[Claims] 1) After adding a first substance to milk of lime, it is partially carbonated to form chain particles with a high degree of basicity, and this suspension is added to a carbon dioxide saturated solution containing a second substance. A method for producing easily dispersible colloidal calcium carbonate, which is characterized by continuous addition. 2) The method for producing easily dispersible colloidal calcium carbonate according to claim 1, wherein the first substance is sodium glutamate, EDTA sulfate, or sucrose, or a mixture thereof. 3) The method for producing easily dispersible colloidal calcium carbonate according to claim 1, wherein the second substance is malic acid, citric acid, tartaric acid, sodium polyacrylate, or bicarbonate, or a mixture thereof. 4) After adding the first substance to the milk of lime, a partial carbonation reaction is carried out at a temperature of 45 to 50°C and a concentration of 10 to 15% by weight. Manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1110786A JPS62171920A (en) | 1986-01-23 | 1986-01-23 | Production of readily dispersible colloidal calcium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1110786A JPS62171920A (en) | 1986-01-23 | 1986-01-23 | Production of readily dispersible colloidal calcium carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62171920A true JPS62171920A (en) | 1987-07-28 |
Family
ID=11768785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1110786A Pending JPS62171920A (en) | 1986-01-23 | 1986-01-23 | Production of readily dispersible colloidal calcium carbonate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62171920A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0556311A1 (en) * | 1990-11-07 | 1993-08-25 | Ecc International Inc. | Aggregated composite mineral pigments |
| GB2312670A (en) * | 1996-05-03 | 1997-11-05 | Kyu Jae You | Producing calcium carbonate particles having a size 0.1 to 1 micron |
| EP0844213A1 (en) * | 1996-11-20 | 1998-05-27 | Ecc International Limited | Precipitates and their production |
| US6172162B1 (en) | 1995-08-30 | 2001-01-09 | Morisei Kako Co., Ltd. | Fluorine containing elastomeric sealing composition and sealant |
| KR100342469B1 (en) * | 1999-06-10 | 2002-06-28 | 규 재 유 | Method for preparation of calcium particles for milk |
-
1986
- 1986-01-23 JP JP1110786A patent/JPS62171920A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0556311A1 (en) * | 1990-11-07 | 1993-08-25 | Ecc International Inc. | Aggregated composite mineral pigments |
| EP0556311A4 (en) * | 1990-11-07 | 1994-11-23 | Ecc Int Inc | Aggregated composite mineral pigments |
| US6172162B1 (en) | 1995-08-30 | 2001-01-09 | Morisei Kako Co., Ltd. | Fluorine containing elastomeric sealing composition and sealant |
| GB2312670A (en) * | 1996-05-03 | 1997-11-05 | Kyu Jae You | Producing calcium carbonate particles having a size 0.1 to 1 micron |
| GB2312670B (en) * | 1996-05-03 | 1998-05-20 | Kyu Jae You | Process for producing calcium carbonate particles having size of 0.1 to 1.0mm |
| EP0844213A1 (en) * | 1996-11-20 | 1998-05-27 | Ecc International Limited | Precipitates and their production |
| KR100342469B1 (en) * | 1999-06-10 | 2002-06-28 | 규 재 유 | Method for preparation of calcium particles for milk |
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