JPS581152B2 - Production method of high hiding power, easily dispersible colored inorganic pigment - Google Patents
Production method of high hiding power, easily dispersible colored inorganic pigmentInfo
- Publication number
- JPS581152B2 JPS581152B2 JP6975679A JP6975679A JPS581152B2 JP S581152 B2 JPS581152 B2 JP S581152B2 JP 6975679 A JP6975679 A JP 6975679A JP 6975679 A JP6975679 A JP 6975679A JP S581152 B2 JPS581152 B2 JP S581152B2
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- particle size
- hiding power
- colored inorganic
- inorganic pigment
- 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.)
- Expired
Links
- 239000001023 inorganic pigment Substances 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 claims description 33
- 239000002245 particle Substances 0.000 claims description 27
- 238000010298 pulverizing process Methods 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 238000000889 atomisation Methods 0.000 claims description 2
- 239000000049 pigment Substances 0.000 description 35
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 16
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 16
- 239000003973 paint Substances 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- -1 titanium sulfate compound Chemical class 0.000 description 2
- QJVOZXGJOGJKPT-IGHBBLSQSA-N (1r,2r,5s,11ar)-2-(prop-2-en-1-yl)-1,2,3,4,5,6,11,11a-octahydro-10h-1,5-methanopyrido[1,2-a][1,5]diazocin-10-one Chemical compound C([C@@H]12)C(=O)C=CN1C[C@@H]1CN[C@H](CC=C)[C@H]2C1 QJVOZXGJOGJKPT-IGHBBLSQSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- QJVOZXGJOGJKPT-UHFFFAOYSA-N albine Natural products C12CC(=O)C=CN2CC2CNC(CC=C)C1C2 QJVOZXGJOGJKPT-UHFFFAOYSA-N 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 229910000348 titanium sulfate Inorganic materials 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Description
【発明の詳細な説明】
本発明は有色無機顔料の製造方法に係り、更に詳しくは
、チタン分を富化したアップグレイド鉱を乾式法二段粉
砕によって平均粒径を０．２〜０．７μｍの粒度分布域
にまで粉状微粒化したことを特徴とする高隠ぺい力、易
分散性有色無機顔料の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing colored inorganic pigments, and more specifically, titanium-enriched upgraded ore is pulverized using a two-stage dry process to reduce the average particle size to 0.2 to 0.7 μm. The present invention relates to a method for producing a high hiding power, easily dispersible colored inorganic pigment, which is characterized by being finely divided into powder particles having a particle size distribution range of .
従来、高隠ぺい力、易分散性の無機顔料としては酸化チ
タン顔料が広く用いられている。Conventionally, titanium oxide pigments have been widely used as inorganic pigments with high hiding power and easy dispersibility.
この酸化チタン顔料の製造方法として最も一般的なもの
は、顔料鉱石を塩素化することによってできる四塩化チ
タンを精製しこれを気相酸化する所謂塩素法によるもの
と、原料鉱石を硫酸に溶解して不純分を除去した硫酸チ
タン化合物を加水分解したのち、キルン等で焼成する所
謂硫酸法によるものとが周知であるが、更に顔料として
の品質を向上させるために精製された酸化チタンに、酸
化ニッケルまたは酸化アンチモン等を添加焼成したもの
の他に、酸化チタン．カルシウム複合顔料などがある。The most common methods for producing titanium oxide pigments are the so-called chlorine method, which involves refining titanium tetrachloride produced by chlorinating pigment ore and oxidizing it in the gas phase, and the so-called chlorine method, which involves dissolving the raw material ore in sulfuric acid. It is well known that the so-called sulfuric acid method is used, in which a titanium sulfate compound from which impurities have been removed is hydrolyzed and then fired in a kiln. In addition to those calcined with nickel or antimony oxide, etc., titanium oxide. Examples include calcium complex pigments.
酸化チタンの用途は極めて広いものであるが、その主な
用途の一つに塗料用がある。Titanium oxide has an extremely wide range of uses, but one of its main uses is in paints.
この塗料用顔料として酸化チタンを用いる場合、白色塗
料用として用いるほか、これを着色顔料と混合して用い
る場合が多く、特に下塗用や中塗用の塗料の場合には酸
化チタンの純白性よりも隠ぺい力と安定性が要求され、
この部門での酸化チタンの使用量も多い。When titanium oxide is used as a pigment for paints, it is used not only for white paints, but also in many cases mixed with colored pigments.Especially in the case of paints for undercoats and intermediate coats, the pure whiteness of titanium oxide is Concealment power and stability are required,
The amount of titanium oxide used in this sector is also large.
ところでこれ等従来公知の酸化チタン顔料を製造するた
めには必らず純酸化チタンを得るための精製工程を経る
ことになるが、この精製工程は使用される硫酸等の廃液
および排出される不純物残渣等の産業廃棄物の処理は不
可避の問題であり、種々の改善が加えられているとはい
えその工程は複雑にして多岐にわたり費やされる資源お
よびエネルギーは多大なものとなっている。By the way, in order to manufacture these conventionally known titanium oxide pigments, it is necessary to go through a purification process to obtain pure titanium oxide, but this purification process involves removing waste liquids such as sulfuric acid used and impurities discharged. The treatment of industrial waste such as residue is an unavoidable problem, and although various improvements have been made, the process is complicated and requires a large amount of resources and energy.
本発明者等は、かかる諸問題を排除し、而も目的とする
高隠ぺい力、易分散性の有色無機顔料を得るために種々
研究の結果、■に新規な工業的方法を提案するものであ
る。In order to eliminate these problems and obtain the desired colored inorganic pigment with high hiding power and easy dispersibility, the present inventors have conducted various studies and proposed a new industrial method. be.
即ち、本発明の特色とするところは、チタン分を富化し
たアツプグレイド鉱を、その主成分である酸化チタンの
屈折率の高いことを利用して乾式方法によって通常知ら
れる微粉砕機を用いて一次粉砕し、更に流体エネルギー
ミルによる二次粉砕を施すという乾式法二段粉砕方式を
採用して平均粒径が０．２〜０．７μｍの粒度分布域に
まで粉状微粒化せしめ、そのまま無機顔料としての用途
に使用し得るところにあり、その操作は簡便にしてかつ
有害物の浄化および廃棄物処理等の公害発生要因を未然
に防止し得た点にある。That is, the feature of the present invention is that upglade ore enriched with titanium is processed using a commonly known pulverizer using a dry method, taking advantage of the high refractive index of titanium oxide, its main component. A two-stage dry pulverization method is adopted in which the powder is first pulverized using a fluid energy mill, and then subjected to a second pulverization using a fluid energy mill. It can be used as an inorganic pigment, and its operation is simple, and pollution-causing factors such as purification of harmful substances and waste disposal can be prevented.
本発明方法の利点の一つとして更に付言すれば、顔料と
しての用途に好適であると云われる粒径０．２〜０．７
μｍにまで微粉砕する工程が乾式方法によってのみ行わ
れるというところにある。One of the advantages of the method of the present invention is that the particle size is 0.2 to 0.7, which is said to be suitable for use as a pigment.
The process of pulverizing down to micrometers is carried out only by a dry method.
通常かかるアップグレイド鉱の粉砕手段は乾式法と湿式
法に大別されるが、湿式法の場合は分級、濾過、乾燥、
解砕および分級工程における粗粒側のリサイクル、更に
は乾燥という工程の種重ねで煩雑となるばかりでなく廃
液の処理という公害防止対策もないがしろにはできず技
術的にも経済的にも得策ではない。Usually, the means of crushing such upgraded ore is roughly divided into dry method and wet method, but in the case of wet method, classification, filtration, drying,
Recycling of the coarse particles in the crushing and classification process, and further drying, are not only complicated, but also the pollution prevention measures of waste liquid treatment cannot be ignored, so it is not a good idea from both a technical and economic point of view. do not have.
一方、粉体の微粉砕を機械的方法によってのみ行なう場
合の微粒化の可能性については、Ｈｕｔｉｇによると１
．０μｍまたはＢｏｎｄによる０．６９μｍがその限界
と考えられているが、工業的にはサブミクロンまでの粉
砕は困難ということが通説であった。On the other hand, according to Hutig, the possibility of atomization when the powder is pulverized only by mechanical methods is 1.
．． The limit is considered to be 0 μm or 0.69 μm by Bond, but it has been generally accepted that it is difficult to grind down to submicron size industrially.
本発明者等は、この通説を克服するために各種の粉砕機
を用いて種々の実験を繰返した結果、乾式方法によって
目的とする粒径の粒度分布域にまで微粉砕する方法とし
て前述の如き二段粉砕の方法を究知し、而も工業的規模
において極めて簡易にして経済的かつ公害等を惹起する
素因を未然に防止し得るということを可能ならしむるに
至った。In order to overcome this common belief, the present inventors have repeatedly conducted various experiments using various types of pulverizers, and as a result, the inventors have developed the method described above as a method of pulverizing particles to the desired particle size distribution range using a dry method. We have discovered a method of two-stage pulverization, and have made it possible to make it extremely simple and economical on an industrial scale, and to prevent the predisposing factors that cause pollution.
本発明方法における粉砕は乾式方法による二段粉砕であ
ることは前述の通りであるが、一次粉砕に用いられる微
粉砕機としてはボールミル、チューブミル、ローラーミ
ル、ハンマーミル、アトリツションミル、レイモンドミ
ル、ミクロンミル、振動ミルおよび流体エネルギーミル
等がある。As mentioned above, the grinding in the method of the present invention is a two-stage dry grinding process, but the fine grinders used for the primary grinding include ball mills, tube mills, roller mills, hammer mills, attrition mills, and Raymond mills. There are mills, micron mills, vibration mills, fluid energy mills, etc.
次の二次粉砕に用いる粉砕機としては流体エネルギーミ
ルを用いることが目的とする平均粒径０．２〜０．７μ
ｍにまで微粉砕する上で最も経済的で好適であることが
実験の結果から明らかである。The target average particle size is 0.2 to 0.7μ, and a fluid energy mill is used as the pulverizer for the next secondary pulverization.
It is clear from the experimental results that it is the most economical and suitable method for pulverizing to m.m.
尚、一次粉砕後気流等による分級工程を入れることによ
り二次粉砕の負担を軽減すると共にその効果を更に高め
ることもできる。Incidentally, by introducing a classification step using an air stream or the like after the primary crushing, it is possible to reduce the burden of the secondary crushing and further enhance its effect.
斯くの如くして得られた粉状微粒化物は淡彩色に呈色し
た有色無機顔料として充分にその用途を果せるのみなら
ず、高隠ぺい力、易分散性という顔料特性においても、
従来公知の酸化チタン顔料に比較して優れていることが
明らかとなった。The powder-like atomized product thus obtained not only satisfactorily serves its purpose as a pale colored inorganic pigment, but also has pigment properties such as high hiding power and easy dispersibility.
It has become clear that this pigment is superior to conventionally known titanium oxide pigments.
本発明方法において使用されるアップグレイド鉱とは、
通常知られる含チタン鉱石に諸種の処理を施し、チタン
分を富化し高品位とした所謂アップグレイド鉱であり、
その原料鉱石および処理方法等に制限を与えるものでは
ない。The upgraded ore used in the method of the present invention is
It is a so-called upgraded ore, which is made by applying various treatments to the commonly known titanium-containing ore to enrich it with titanium and make it high-grade.
There is no restriction on the raw material ore, processing method, etc.
以上のように本発明者は顔料として好適な粒度を得るた
めの粉砕方法につき種々の試みを行ったが、その過程に
おいて意外な事実として、アップグレイド鉱を用いて前
述の如き粉砕を行なうと天然鉱に比較し、顔料として極
めて好適な粒径を得ることを究知した。As described above, the present inventors have made various attempts at pulverization methods to obtain a particle size suitable for pigments, but in the course of the process, an unexpected fact was discovered that when the above-mentioned pulverization is performed using upgrade ore, natural We have discovered that it is possible to obtain a particle size that is extremely suitable for use as a pigment compared to minerals.
この理由は明らかではないが、アップグレイド鉱の原料
となるべき天然鉱の粒子中に含有する不純分が除かれる
結果として、その粒子内の結晶状態が前述の粉砕方法に
良好に適合するためと推考される。The reason for this is not clear, but as a result of removing the impurities contained in the particles of the natural ore that is the raw material for the upgraded ore, the crystalline state within the particles is well suited to the above-mentioned pulverization method. It is estimated.
以下実施例によって本発明方法ならびに効果について具
体的に説明する。The method and effects of the present invention will be specifically explained below with reference to Examples.
実施例 １
平均粒径２３０μｍ、含有成分が第１表に示す通りのア
ップグレイド鉱を１２．７ｉｍφの鋼球を使用する砕量
０．ｉの小型振動ミルに装入し、振巾６ｍｍにて４時間
の粉砕を行なった。Example 1 Upgraded ore having an average particle diameter of 230 μm and containing components as shown in Table 1 was crushed with a 12.7 mmφ steel ball to a crushing amount of 0. The mixture was placed in a small vibrating mill manufactured by I, and pulverized for 4 hours at a shaking width of 6 mm.
この一次粉砕後の平均粒径は０．４０μｍと測定された
。The average particle size after this primary pulverization was measured to be 0.40 μm.
次に流体エネルギーミル（アルビネ社製気流粉砕機エア
口フレックス２００ＡＳ型）により粉砕速度１０ｋｇ／
Ｈｒで二次粉砕を行ない平均粒径０．２８μｍで、粒度
分布巾の狭い有色無機顔料を得た。Next, a pulverization speed of 10 kg/
Secondary pulverization was performed using Hr to obtain a colored inorganic pigment with an average particle size of 0.28 μm and a narrow particle size distribution.
ＪＩＳ Ｋ−５１１６酸化チタン顔料およびＪＩＳＫ−
５１０１顔料試験法に基づいて測定した顔料特性は第２
表に示す如くである。JIS K-5116 titanium oxide pigment and JIS K-
Pigment properties measured based on the 5101 Pigment Test Method are
As shown in the table.
実施例 ２
実施例１で使用したものと同じアップグレイド鉱を、１
２．７ｍｍφの鋼球を使用する砕量２５０ｌの工業用振
動ミルに装入し、振巾６ｍｍにて４時間の粉砕を行なっ
た。Example 2 The same upgraded ore used in Example 1 was
The mixture was placed in an industrial vibration mill with a crushing capacity of 250 liters using steel balls of 2.7 mmφ, and crushed for 4 hours at a shaking width of 6 mm.
この一次粉砕後の平均粒径は０．３５μｍと測定された
。The average particle size after this primary pulverization was measured to be 0.35 μm.
次に流体エネルギーミル（アルビネ社製気流粉砕機エア
ロフレックス３１５ＡＳ型）により、粉砕速度６０ｋｇ
／Ｈｒで二次粉砕を行ない平均粒径０．３０μｍで、狭
い粒度分布巾の有色無機顔料を得た。Next, using a fluid energy mill (air flow crusher Aeroflex 315AS type manufactured by Albine), the crushing speed was 60 kg.
Secondary pulverization was performed at /Hr to obtain a colored inorganic pigment with an average particle size of 0.30 μm and a narrow particle size distribution.
実施例１と同様の方法で測定した顔料特性は第２表に示
す如くである。The pigment properties measured in the same manner as in Example 1 are shown in Table 2.
尚、第２表に示される顔料特性は実施例１において述べ
た如く、ＪＩＳＫ−５１１６酸化チタン顔料およびＪＩ
ＳＫ−５１０１顔料試験法に基づき測定した数値である
が、更に付け加えると次の通りである。As described in Example 1, the pigment properties shown in Table 2 are as follows: JISK-5116 titanium oxide pigment and JISK-5116 titanium oxide pigment
The numerical values were measured based on the SK-5101 pigment test method, and the following can be added.
１．粒度 （１）原料鉱石の平均粒度 乾式篩別にて測定する。1. particle size (1) Average particle size of raw material ore Measure by dry sieving.
（２）粉砕後の平均粒径
ヘキサメタリン酸ソーダ０．１Ｗｔ％水系で顔料を超音
波分散させ、光透過法にて測定し重量累積粒度分布５０
Ｗｔ％値を平均粒径とする。(2) Average particle size after crushing The pigment was ultrasonically dispersed in a 0.1 wt% sodium hexametaphosphate aqueous system and measured by a light transmission method, and the weight cumulative particle size distribution was 50.
The Wt% value is taken as the average particle size.
２．隠ぺい力
メラミン・アルキツド樹脂塗料・顔料重量濃度ＰＷＣ４
０Ｗｔ％／湿ベース
メラミン・ポリエステル樹脂塗料・顔料重量濃度ＰＷＣ
２０Ｗｔ％／湿ベース
上記の塗料化したものを隠ぺい力測定用紙にフイルムア
プリケーターで塗布して隠ぺい膜厚となった湿ベースの
膜厚で表示する。2. Hiding power melamine/alkyd resin paint/pigment weight concentration PWC4
0Wt%/Wet base melamine/polyester resin paint/pigment weight concentration PWC
20 Wt%/wet base The above paint is applied to a paper for measuring hiding power using a film applicator, and the thickness of the wet base is indicated as the hiding film thickness.
表示単位はフイルムアプリケーター表示のｌｍｉｌは例
ｌの隠ぺい力を１００とし、他の顔料の隠ぺい力を示し
た。The unit of display is 1mil, which is expressed on a film applicator, with the hiding power of Example 1 being 100, and showing the hiding power of other pigments.
３．分散性
（１）フーバ一式マラー３０回転値
ＪＩＳＫ−５１０１顔料試験法でのフーバ一式マラーを
用い顔料／ビヒクル系で５０ｌｂ／３０回転後のペース
トをグラインドゲージで読んだμｍ値である。3. Dispersibility (1) Huber set Muller 30 revolutions value This is the μm value read with a grind gauge of the paste after 50 lb/30 revolutions in a pigment/vehicle system using a Huber set Muller according to the JISK-5101 pigment test method.
（２）ペイントシェーカー１０分値
顔料／ビヒクル系でペイントシェーカー
１０分振盪後、グラインドゲージで読んだμｍ値である
。(2) Paint shaker 10 minute value This is the μm value read with a grind gauge after shaking the pigment/vehicle system for 10 minutes in a paint shaker.
４．色相 肉眼観察で表示する。4. Hue Indicate by visual observation.
以上詳述の如く、本発明方法による有色無機顔料の製造
方法は、従来公知の酸化チタン顔料の製造方法と比較し
、原料中の不純物を除去する精製工程や廃棄物の回収お
よび無害化など煩雑な工程を要しないために工程の簡略
化や装置の簡素化に伴なう経済的効果に加えて、有害物
質を直接使用することも回避されるため公害発生の素因
を未然に排除できるという利点もある。As detailed above, the method for producing colored inorganic pigments according to the present invention is more complicated than conventional methods for producing titanium oxide pigments, such as the purification process for removing impurities in raw materials and the collection and detoxification of waste. In addition to the economic effect of simplifying the process and equipment because it does not require additional steps, it also avoids the direct use of hazardous substances, which has the advantage of eliminating the predisposition to causing pollution. There is also.
即ち、省資源、省エネルギー化と共に公害防止という相
乗効果が加わり、そこからもたらされる利益は計り知れ
ないものがある。In other words, the synergistic effect of pollution prevention as well as resource and energy conservation is added, and the benefits derived from this are immeasurable.
これは機械的処理による粒体の微粉化の限界という通説
を、本発明の特色である乾式二段粉砕方式によって克服
し、顔料として要求される平均粒径０．２〜０．７μｍ
に比較的粒度分布域を広げることなく、而も工業的規模
においても粉砕可能としたことが大きく貢献しているか
らに他ならない。This invention overcomes the common belief that there is a limit to the pulverization of granules by mechanical processing by using the dry two-stage pulverization method, which is a feature of the present invention, and achieves an average particle size of 0.2 to 0.7 μm, which is required for pigments.
This is due to the fact that it has become possible to grind even on an industrial scale without relatively widening the particle size distribution range.
本発明方法によって得られた有色無機顔料は、第２表か
らも明らかな如く、市販の酸化チタン顔料と比較し顔料
として最も重要な隠ぺい力および分散性が極めて優れて
おり、他の顔料特性においても淡彩色に呈色しているこ
と以外は殆んど同等の値を示している。As is clear from Table 2, the colored inorganic pigments obtained by the method of the present invention are extremely superior in hiding power and dispersibility, which are the most important factors for pigments, compared to commercially available titanium oxide pigments, and in other pigment properties. The values are almost the same except that they are colored in a lighter color.
また淡彩色に呈色している本発明方法によって得られた
有色無機顔料は、その用途に応じて従来公知の方法で表
面処理を施すことにより更に顔料特性の向上を計り、高
級顔料としての用途に供することも可能である。In addition, the colored inorganic pigments obtained by the method of the present invention, which have a pale color, can be used as high-grade pigments by surface treatment using conventionally known methods to further improve pigment properties. It is also possible to provide
Claims (1)
によって微粉砕機を用いて一次粉砕し、更に流体エネル
ギーミルを用いて二次粉砕するという乾式法二段粉砕を
行なうことによって該鉱石の平均粒径を０．２〜０．７
μｍの粒度分布域にまで粉状微粒化せしむることを特徴
とする高隠ぺい力、易分散性有色無機顔料の製造方法。1 Upgraded ore enriched with titanium is first pulverized using a pulverizer using a dry method, and then secondary pulverization is performed using a fluid energy mill. Particle size 0.2-0.7
A method for producing a high hiding power, easily dispersible colored inorganic pigment, which is characterized by atomization into powder to a particle size distribution range of μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6975679A JPS581152B2 (en) | 1979-06-04 | 1979-06-04 | Production method of high hiding power, easily dispersible colored inorganic pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6975679A JPS581152B2 (en) | 1979-06-04 | 1979-06-04 | Production method of high hiding power, easily dispersible colored inorganic pigment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55161866A JPS55161866A (en) | 1980-12-16 |
| JPS581152B2 true JPS581152B2 (en) | 1983-01-10 |
Family
ID=13411947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6975679A Expired JPS581152B2 (en) | 1979-06-04 | 1979-06-04 | Production method of high hiding power, easily dispersible colored inorganic pigment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS581152B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102170661B1 (en) * | 2017-12-27 | 2020-10-27 | 주식회사 엘지화학 | Manufacturing method of separator, separator formed therefrom and electrochemical device containing the same |
| CN112657584A (en) * | 2021-01-18 | 2021-04-16 | 石家庄宣渠科技有限公司 | Compromise ore processing equipment of smashing grinding |
-
1979
- 1979-06-04 JP JP6975679A patent/JPS581152B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55161866A (en) | 1980-12-16 |
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