JPH05115745A - Production of coaly material surface-treated with calcium carbonate - Google Patents
Production of coaly material surface-treated with calcium carbonateInfo
- Publication number
- JPH05115745A JPH05115745A JP3305564A JP30556491A JPH05115745A JP H05115745 A JPH05115745 A JP H05115745A JP 3305564 A JP3305564 A JP 3305564A JP 30556491 A JP30556491 A JP 30556491A JP H05115745 A JPH05115745 A JP H05115745A
- Authority
- JP
- Japan
- Prior art keywords
- calcium carbonate
- coal
- coaly
- treated
- calcium
- 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 42
- 239000000463 material Substances 0.000 title claims abstract description 39
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011575 calcium Substances 0.000 claims abstract description 13
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011847 coal-based material Substances 0.000 claims description 24
- 238000004381 surface treatment Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 16
- 230000003009 desulfurizing effect Effects 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003077 lignite Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 12
- 235000019738 Limestone Nutrition 0.000 description 9
- 239000006028 limestone Substances 0.000 description 9
- 238000002309 gasification Methods 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 5
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229910001424 calcium ion Inorganic materials 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000003476 subbituminous coal Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- -1 hydrogen ions Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 239000010434 nepheline Substances 0.000 description 1
- 229910052664 nepheline Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、炭酸カルシウムを含む
石灰質材料で表面処理をした石炭質材料の製造法に関す
るものであり、詳しくは石炭質材料の表面にカルシウム
分を含ませたもので、脱硫剤等の用途に供することがで
きる石炭質材料の製造法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a coal-based material which has been surface-treated with a calcareous material containing calcium carbonate. The present invention relates to a method for producing a coal-based material that can be used as a desulfurizing agent and the like.
【０００２】[0002]
【従来の技術】炭酸カルシウムを主成分とする石灰石等
の石灰質材料は、地球上に多量に存在する資源であり、
セメントや鉄鋼の製造原料として用いる外に、建材や肥
料等の種々の用途がある。そして石灰質材料は、その主
成分がアルカリ土類の炭酸塩であるから、酸性の排汚水
の中和処理剤として汎用され、いわゆる公害防止剤とし
て注目されている。特に近年においては、排煙や排ガス
中の硫黄酸化物が大気汚染の主なる原因になることか
ら、いわゆる排煙脱硫の問題が研究され、上記の石灰質
材料が種々の形態や方法によって脱硫剤として用いられ
てきた。2. Description of the Related Art Calcareous materials such as limestone whose main component is calcium carbonate are resources that are present in large quantities on the earth,
Besides being used as a raw material for manufacturing cement and steel, it has various uses such as building materials and fertilizers. Since the main component of the calcareous material is an alkaline earth carbonate, the calcareous material is widely used as a neutralizing agent for acidic wastewater, and is attracting attention as a so-called pollution control agent. Particularly in recent years, since the sulfur oxides in flue gas and exhaust gas are the main causes of air pollution, the problem of so-called flue gas desulfurization has been studied, and the above-mentioned calcareous material is used as a desulfurizing agent by various forms and methods. Has been used.
【０００３】一方石炭質材料も地球上に多量に埋蔵され
ている地下資源であるが、その用途は燃料や鉄鋼原料と
して多量に用いられる外に、構成成分の分離、抽出、改
質等の手段で処理され、いわゆる化学品ないし化学合成
品の原料として用いられてきた。On the other hand, coal-based materials are also underground resources that are stored in large quantities on the earth, and the purpose is to use them in large quantities as fuels and raw materials for steel, as well as means for separating, extracting, and reforming constituent components. And has been used as a raw material for so-called chemical products or chemically synthesized products.
【０００４】[0004]
【発明が解決しようとする課題】上記のように石灰質材
料も石炭質材料も地下資源等として多量に存在するもの
であるが、両者の特徴が結合された形態で役に立つ材料
や技術は、未だ開発されていないのが現状である。そし
て石灰石等の主成分は炭酸カルシウムであるが、これは
炭酸塩であるために脱硫剤等として用いる場合に、必ず
しも反応活性に富むものではない。従って、炭酸カルシ
ウムを主成分とする石灰石等そのものは、遅効性の脱硫
剤ないし中和剤である。そこで石灰石等を高温で焼成し
て分解し、生石灰ないし消石灰とし、速効性のものとし
て用いることがあるが、これらは高価なものとなるの
で、環境汚染の防止のように大量に消費する場合等、そ
の用途如何によっては使用できないのが現状である。As described above, both calcareous materials and coal-based materials exist in large amounts as underground resources, etc., but materials and technologies that are useful in a form in which the features of both are combined have not yet been developed. The current situation is that it has not been done. The main component of limestone or the like is calcium carbonate, but since it is a carbonate, it is not always rich in reaction activity when used as a desulfurizing agent or the like. Therefore, limestone or the like containing calcium carbonate as a main component is a slow-acting desulfurizing agent or neutralizing agent. Therefore, limestone is burned at a high temperature to decompose it into quick lime or slaked lime, which may be used as fast-acting ones, but since these are expensive, when they are consumed in large quantities to prevent environmental pollution, etc. At present, it cannot be used depending on its use.
【０００５】本発明は上記の現状に鑑みてなされたもの
であり、その目的は、炭酸カルシウムを含む石灰質材料
と石炭質材料の特徴を結合して、(1)反応活性に富み脱
硫剤等の用途に供することができること、(2)大量生
産、供給が可能な脱硫剤であること、(3)簡単な方法で
安価な脱硫剤を得ること、(4)公害を防止し、環境保全
に役にたてることができる石炭質材料の製造法を提供す
ることである。The present invention has been made in view of the above circumstances, and an object thereof is to combine the characteristics of calcareous materials containing calcium carbonate and coal-based materials to provide (1) a desulfurizing agent having a high reaction activity. Can be used for applications, (2) be a desulfurizing agent that can be mass-produced and supplied, (3) obtain an inexpensive desulfurizing agent by a simple method, (4) prevent pollution, and help protect the environment It is to provide a method for producing a coal-based material that can be sewn.
【０００６】[0006]
【課題を解決するための手段および作用】本発明者等
は、上記の目的を達成せんとして種々研究したところ、
石炭質材料の粒子の表面に炭酸カルシウムに由来するカ
ルシウム分を置換して担持させることができ、これによ
り反応活性に富み、脱硫剤等として汎用性のある石炭質
材料が得られることを発見した。[Means and Actions for Solving the Problems] The inventors of the present invention have conducted various studies to achieve the above object,
It has been discovered that it is possible to substitute and carry the calcium component derived from calcium carbonate on the surface of the particles of the coalaceous material, which makes it possible to obtain a coalaceous material that is rich in reaction activity and versatile as a desulfurizing agent. ..
【０００７】本発明は上記の知見に基づくものであり、
その要旨は、炭酸カルシウムを含む細粒状の石灰質材料
と細粒状の石炭質材料を、水またはアルコール中で混合
し、石炭質材料の表面にカルシウム分を含ませることを
特徴とする炭酸カルシウムで表面処理をする石炭質材料
の製造法である。The present invention is based on the above findings,
The gist is that a fine-grained calcareous material containing calcium carbonate and a fine-grained coal-based material are mixed in water or alcohol, and the surface of the coal-based material is calcium carbonate characterized by containing a calcium component. It is a method for producing coal-based materials for processing.
【０００８】本発明は、石炭質材料を構成する種々の有
機物成分のＣＯＯＨ、ＯＨ基等の水素イオンと、炭酸カ
ルシウムに由来するカルシウムイオンとを置換せしめ
て、石炭質材料の粒子の表面を改質するものである。即
ち、炭酸カルシウムを含む石灰質材料を用いて石炭質材
料の表面を処理することを特徴とするものである。The present invention replaces hydrogen ions such as COOH and OH groups of various organic components constituting a coal-based material with calcium ions derived from calcium carbonate to improve the surface of the particles of the coal-based material. It is quality. That is, the surface of the coal-based material is treated with a calcareous material containing calcium carbonate.
【０００９】本発明に用いる石炭質材料としては、草炭
（ピ−ト）、亜炭、褐炭、リグナイト、亜歴青炭等が挙
げられる。また石灰質材料としては、炭酸カルシウムを
その主成分とするものであり、石灰石（方解石）、貝殻
（霞石）、ドロマイト等が挙げられる。そして本発明
は、細粒ないし微粉状にした上記の石炭質材料と石灰質
材料を水中またはアルコール中で混合してスラリー状と
し、適宣の時間放置して石炭質材料の表面にカルシウム
イオンを置換して担持せしめるものである。Examples of the coalaceous material used in the present invention include grass coal (pet), lignite, brown coal, lignite, and subbituminous coal. The calcareous material has calcium carbonate as its main component and includes limestone (calcite), shell (nepheline), dolomite, and the like. And the present invention, the fine particles or finely powdered above-mentioned coalaceous material and calcareous material are mixed in water or alcohol to form a slurry, and left for an appropriate time to substitute calcium ions on the surface of the coalaceous material. To be carried.
【００１０】細粒状にする石炭質材料の粒度は、特に限
定されるものではないが、石炭質材料と石灰質材料のカ
ルシウムイオンの置換反応を促進させるためには、１ｍ
ｍ程度以下が望ましく、粒子の表面積を大きくする方が
好ましい。また石灰質材料の粒度は、これも特に限定さ
れるものではないが、１００μｍ程度以下が望ましい。
しかし水中でスラリー状になればよいので、もっと粗粒
のものであってもよい。そして石炭質材料／石灰質材料
の混合比は、石炭質材料の表面で置換するカルシウムの
量によって適宣に選択することができるが、カルシウム
の置換反応量が１〜１０重量％では、混合比は４０〜４
となる。The particle size of the coalaceous material to be finely divided is not particularly limited, but it is 1 m in order to accelerate the substitution reaction of calcium ions between the coalaceous material and the calcareous material.
It is preferably about m or less, and it is preferable to increase the surface area of the particles. The particle size of the calcareous material is not particularly limited, but is preferably about 100 μm or less.
However, coarser particles may be used, as long as it becomes a slurry in water. The mixing ratio of the coalaceous material / calcinous material can be appropriately selected depending on the amount of calcium substituted on the surface of the coalaceous material, but when the substitution reaction amount of calcium is 1 to 10% by weight, the mixing ratio is 40-4
Becomes
【００１１】つぎに本発明において、石炭質材料と炭酸
カルシウムを含む石灰質材料を水中で混合してカルシウ
ムイオンの置換反応をさせる際の温度は１５〜７０℃程
度が好ましく、圧力は大気圧下で処理することができ
る。そして本発明においてカルシウムの最大置換反応量
は、石炭質材料に対して約１０％程度である。このよう
にして製造される、炭酸カルシウムを含む石灰質材料で
表面処理をされた石炭質材料は、極めて簡単な方法で安
価に製造されるものであり、硫黄酸化物等の酸性物質の
いわゆる脱硫剤として用いることができて、近時問題と
されている酸性雨による公害防止等にも用いることがで
きるほか、石炭質材料を効率よく気体燃料化できるガス
化触媒としても広く利用することができる。Next, in the present invention, the temperature when the coalaceous material and the calcareous material containing calcium carbonate are mixed in water to cause the calcium ion substitution reaction is preferably about 15 to 70 ° C., and the pressure is at atmospheric pressure. Can be processed. In the present invention, the maximum substitution reaction amount of calcium is about 10% with respect to the coal-based material. The coal-based material surface-treated with the calcareous material containing calcium carbonate manufactured in this manner is a very simple method and inexpensively manufactured, and is a so-called desulfurizing agent for acidic substances such as sulfur oxides. In addition to being used for preventing pollution due to acid rain, which has recently been a problem, it can be widely used as a gasification catalyst capable of efficiently converting coal-based materials into gas fuel.
【００１２】[0012]
【実施例等】以下実施例に基いて本発明を説明する。 実施例１．豪州産の褐炭を粉砕して５０〜１００μｍの
粒度に調整したものを１ｋｇと、石灰石を粉砕して５０
〜１００μｍの粒度に調整したもの０.１ｋｇを水中に
混合して、水中の固形物が２０重量％となるスラリーを
調製した。このスラリーを、２０℃の温度に維持して１
時間攪拌混合した。その後、このスラリー中の褐炭と石
灰石を分離して、褐炭についてカルシウムの置換量を調
べたところ、褐炭の表面にカルシウムが３重量％添加さ
れていた。EXAMPLES The present invention will be explained based on examples below. Example 1. Lignite produced in Australia was crushed and adjusted to a particle size of 50 to 100 μm, and 1 kg of limestone was crushed to 50 kg.
0.1 kg adjusted to a particle size of -100 μm was mixed in water to prepare a slurry having a solid content in water of 20% by weight. This slurry is maintained at a temperature of 20 ° C.
Stir and mix for hours. Then, when brown coal and limestone in this slurry were separated and the amount of substitution of calcium in the brown coal was investigated, 3% by weight of calcium was added to the surface of the brown coal.
【００１３】実施例２．アメリカ産リグナイトを粉砕し
て５０μｍ以下の粒度に調整したもの０.５ｋｇと、ド
ロマイトを粉砕して５０μｍ以下の粒度に調整したもの
０.１ｋｇを水中に混合して、水中の固形物が３０重量
％となるスラリーを調製した。このスラリーを５０℃の
温度に維持し、３時間混合した。その結果、リグナイト
の表面にカルシウムが５重量％添加された。Embodiment 2. 0.5 kg of American lignite crushed to a particle size of 50 μm or less and 0.1 kg of dolomite crushed to a particle size of 50 μm or less are mixed in water, and the solid content in water is 30% by weight. % Slurry was prepared. The slurry was maintained at a temperature of 50 ° C and mixed for 3 hours. As a result, 5% by weight of calcium was added to the surface of the lignite.
【００１４】試験例１．実施例１で得られた本発明に係
る表面処理された褐炭（粒度が５０〜１００μｍでカル
シウムが３重量％添加されたもの）０.１ｋｇと、アメ
リカ産の高硫黄歴青炭(粒度が５０〜１００μｍのもの)
０.１ｋｇを混合し、この混合物を空気で流動化させな
がら７００〜１０００℃で燃焼試験をしたところ、１０
分の燃焼時間で、その脱硫率は６０〜８０％であった。
なおこの脱硫率は、供給した石炭質材料中に含まれる硫
黄量から燃焼によって生成したガス中に含まれる硫黄量
を差引いた値を、供給した石炭質材料に含まれる硫黄量
で除した値に１００を乗じたものである。Test Example 1. 0.1 kg of the surface-treated brown coal obtained in Example 1 according to the present invention (having a particle size of 50 to 100 μm and 3% by weight of calcium added) and a high sulfur bituminous coal (having a particle size of 50) ~ 100 μm)
When 0.1 kg was mixed and the mixture was fluidized with air and subjected to a combustion test at 700 to 1000 ° C., 10
With a burning time of minutes, the desulfurization rate was 60 to 80%.
Note that this desulfurization rate is the value obtained by subtracting the amount of sulfur contained in the gas produced by combustion from the amount of sulfur contained in the supplied coal-based material, divided by the amount of sulfur contained in the supplied coal-based material. It is multiplied by 100.
【００１５】試験例２．ピート、褐炭（豪州、中国、カ
ナダ産）、リグナイト、亜歴青炭について、それぞれ石
灰石で表面処理してカルシウムを５重量％添加したもの
各々１０ｇを原料として、原料の温度７００〜１０００
℃、圧力１atmで水蒸気ガス化試験をしたところ、ガス
化率９０〜１００％で水素ガス等のガスを得ることがで
きた。なおこのガス化率は、供給した石炭質材料量から
ガス化後に残った量を差引いた値を、供給した石炭質材
料量で除した値に１００を乗じたものである。Test Example 2. Pete, lignite (produced in Australia, China, Canada), lignite, and subbituminous coal, each of which was surface-treated with limestone and added with 5% by weight of calcium, 10 g of each was used as a raw material, and the temperature of the raw material was 700 to 1,000.
When a steam gasification test was conducted at a temperature of 1 atm and a gasification rate of 90 to 100%, a gas such as hydrogen gas could be obtained. Note that this gasification rate is a value obtained by subtracting a value obtained by subtracting the amount remaining after gasification from the supplied amount of coal-based material, divided by the supplied amount of coal-based material, and multiplying by 100.
【００１６】試験例３．豪州産の褐炭について、石灰石
で表面処理して、その表面にカルシウムを４重量％添加
したものを０.２ｋｇ／ｈｒの割合で流動化しながら、
原料の温度８００〜１０００℃、圧力１０〜３０atmで
水蒸気ガス化したところ、ガス化率９０〜１００％でＨ
2６０〜７０％、ＣＯ2２０〜３０％、その他(ＣＨ4、Ｃ
Ｏ)１０％のガスを得ることができた。Test Example 3. Lignite produced in Australia was surface-treated with limestone and 4% by weight of calcium was added to the surface while fluidizing at a rate of 0.2 kg / hr.
When steam was gasified at a temperature of the raw material of 800 to 1000 ° C. and a pressure of 10 to 30 atm, H at a gasification rate of 90 to 100% was obtained.
2 60-70%, CO 2 20-30%, others (CH 4 , C
O) 10% gas could be obtained.
【００１７】[0017]
【発明の効果】本発明によれば、炭酸カルシウムを含む
石灰質材料と石炭質材料の特徴を結合することにより、
反応活性に富み脱硫剤等の用途に供することができる石
炭質材料が得られる。そしてこの炭酸カルシウムで表面
処理をした石炭質材料は、大量生産、供給が可能な脱硫
剤であり、かつ簡単な方法で安価に得ることができる。
従って、公害防止や環境保全に役にたてることができ
る。また石炭質材料のガス化触媒としても利用すること
ができるので、その実用上の価値は大なるものがある。According to the present invention, by combining the characteristics of calcareous materials containing calcium carbonate and coal-based materials,
It is possible to obtain a coal-based material that is highly reactive and can be used for desulfurization agents and the like. The coal-based material surface-treated with calcium carbonate is a desulfurizing agent that can be mass-produced and supplied, and can be obtained at low cost by a simple method.
Therefore, it can be useful for pollution prevention and environmental protection. In addition, since it can be used as a gasification catalyst for coal-based materials, it has great practical value.
Claims (1)
料と細粒状の石炭質材料を、水またはアルコール中で混
合し、石炭質材料の表面にカルシウム分を含ませること
を特徴とする炭酸カルシウムで表面処理をする石炭質材
料の製造法。1. A calcium carbonate characterized in that a fine-grained calcareous material containing calcium carbonate and a fine-grained coalaceous material are mixed in water or alcohol so that the surface of the coalaceous material contains a calcium component. A method for producing coal-based materials for surface treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3305564A JPH05115745A (en) | 1991-10-25 | 1991-10-25 | Production of coaly material surface-treated with calcium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3305564A JPH05115745A (en) | 1991-10-25 | 1991-10-25 | Production of coaly material surface-treated with calcium carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05115745A true JPH05115745A (en) | 1993-05-14 |
Family
ID=17946674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3305564A Pending JPH05115745A (en) | 1991-10-25 | 1991-10-25 | Production of coaly material surface-treated with calcium carbonate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05115745A (en) |
-
1991
- 1991-10-25 JP JP3305564A patent/JPH05115745A/en active Pending
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