JPH0196293A - Dispersion stabilizer for aqueous system of fine coal powder - Google Patents
Dispersion stabilizer for aqueous system of fine coal powderInfo
- Publication number
- JPH0196293A JPH0196293A JP62252594A JP25259487A JPH0196293A JP H0196293 A JPH0196293 A JP H0196293A JP 62252594 A JP62252594 A JP 62252594A JP 25259487 A JP25259487 A JP 25259487A JP H0196293 A JPH0196293 A JP H0196293A
- Authority
- JP
- Japan
- Prior art keywords
- oxide
- coal
- pitch
- alkylene oxide
- coal powder
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 21
- 239000000843 powder Substances 0.000 title claims abstract description 15
- 239000003381 stabilizer Substances 0.000 title claims abstract description 14
- 239000006185 dispersion Substances 0.000 title claims description 18
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 14
- 239000011300 coal pitch Substances 0.000 claims abstract description 11
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011301 petroleum pitch Substances 0.000 claims abstract description 8
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 7
- 239000000295 fuel oil Substances 0.000 claims abstract description 6
- 230000001590 oxidative effect Effects 0.000 claims abstract description 5
- -1 polyoxyethylene chain Polymers 0.000 claims abstract description 4
- 239000011269 tar Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002002 slurry Substances 0.000 abstract description 6
- 239000002641 tar oil Substances 0.000 abstract description 2
- 238000012644 addition polymerization Methods 0.000 abstract 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000011294 coal tar pitch Substances 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical class OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000002563 ionic surfactant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Liquid Carbonaceous Fuels (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、エネルー源として石炭を有効に利用するため
のもので、石炭微粉末の水系分散安定剤に関するもので
ある。すなわち、石炭微粉末を水中に安定にかつ高濃度
に分散させるための分数安定剤に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is for effectively utilizing coal as an energy source, and relates to an aqueous dispersion stabilizer for fine coal powder. That is, the present invention relates to a fractional stabilizer for stably dispersing fine coal powder in water at a high concentration.
従来、エネルギー源として石油が使用されてきたが、埋
蔵量に限界があり、価格も上昇傾向にある。そのためエ
ネルギー源の多様化が求められ、埋蔵量が多く世界中に
存在している石炭が注目されてきている。しかし、石炭
は固体であり、取り扱い上非常に不便であるため、石炭
を微粉末にして水に分散させスラリーとして使用する方
法が種々検討されており、石炭の微粉末を水中に分散さ
せるための分散剤が種々知られている。たとえば硫酸工
不テル塩、スルホン酸塩などのアニオン界面活性剤、ポ
リメタクリル酸塩などの高分子化合物、アルキレンオキ
サイド付加型非イオン界面活性剤などがある。Oil has traditionally been used as an energy source, but reserves are limited and prices are on the rise. Therefore, there is a need to diversify energy sources, and coal, which exists all over the world and has large reserves, is attracting attention. However, coal is solid and very inconvenient to handle, so various methods of dispersing coal into fine powder and dispersing it in water and using it as a slurry have been studied. Various dispersants are known. Examples include anionic surfactants such as sulfuric acid salts and sulfonates, polymeric compounds such as polymethacrylates, and alkylene oxide-added nonionic surfactants.
しかし、従来知られている石炭微粉末の水系分散安定剤
は、いずれも一長一短があり、分散剤として望まれる性
質を完備しているものはない。たとえばアニオン界面活
性剤はイオウ分子や金属イオンを含んでおり、燃焼時に
イオウ酸化物や金属酸化物を発生する欠点があり、高濃
度分散液の粘性が高くなってしまい低下しないなどの欠
点もある。However, all of the conventionally known aqueous dispersion stabilizers for fine coal powder have advantages and disadvantages, and none of them has the desired properties as a dispersant. For example, anionic surfactants contain sulfur molecules and metal ions, and have the disadvantage of generating sulfur oxides and metal oxides when burned, and also have the disadvantage that the viscosity of high-concentration dispersions increases and does not decrease. .
また、高分子化合物やアルキレンオキサイド付加型非、
イオン界面活性剤を分散剤として使用した場合も、分散
液の粘度が高くなり、高濃度の分散液が得られない。In addition, polymer compounds and alkylene oxide addition type non-,
Even when an ionic surfactant is used as a dispersant, the viscosity of the dispersion increases, making it impossible to obtain a highly concentrated dispersion.
本発明者らは、高濃度に石炭微粉末を含有する分散液で
低粘性のものが得られないという従来の分散剤の欠点を
改良すべく鋭意研究の結果、本発明を完成するに至った
。The present inventors completed the present invention as a result of intensive research to improve the drawback of conventional dispersants, which is that a low viscosity dispersion containing a high concentration of fine coal powder cannot be obtained. .
すなわち、本発明は石炭ピッチ、石油ピッチ、タールあ
るいは／および重質油を酸化することによってｆ’Ｊら
れる酸化物にアルキレンオキサイドを付加重合した非イ
オン界面活性剤からなることを特徴とする石炭微粉末の
水系分散安定剤を提供するものである。That is, the present invention provides a coal powder, which is characterized by being composed of a nonionic surfactant obtained by addition-polymerizing alkylene oxide to an oxide produced by f'J by oxidizing coal pitch, petroleum pitch, tar, and/or heavy oil. The present invention provides a powdered aqueous dispersion stabilizer.
石炭ピッチ、石油ピッチ、タールあるいはｆｆ１ｌｌ、
Ｉｔ油は活性水素をほとんどもっていないので、アルキ
レンオキサイドを付加重合させるのはむずかしい。その
ため、酸化することにより酸化物とする。coal pitch, petroleum pitch, tar or ff1ll,
Since It oil has almost no active hydrogen, it is difficult to add-polymerize alkylene oxide. Therefore, it is made into an oxide by oxidizing.
酸化方法は特に限定されず、空気または酸素等で酸化す
る方法を用いることができる。The oxidation method is not particularly limited, and a method of oxidizing with air, oxygen, or the like can be used.
本発明のアルキレンオキサイド付加物は、石炭ピッチ、
石油ピッチ、タールあるいは／および重質油に常法によ
りアルキレンオキサイドを付加して得られる。用いられ
るアルキレンオキサイドは炭素数２以上のもので、エチ
レンオキサイド、プロピレンオキサイド、ブチレンオキ
サイドが好ましく、１種を使用しても２種以上混合して
使用してもよい。The alkylene oxide adduct of the present invention includes coal pitch,
It is obtained by adding alkylene oxide to petroleum pitch, tar or/and heavy oil by a conventional method. The alkylene oxide used has a carbon number of 2 or more, and ethylene oxide, propylene oxide, and butylene oxide are preferable, and one type or a mixture of two or more types may be used.
本発明のアルキレンオキサイド付加物は、水に溶解する
必要があり、例えばエチレンオキサイドのみの付加物の
場合、石炭ピッチ、石油ピッチ、タールあるいは重質油
の酸化物とポリオキシエチレン鎖との重量比が１／１〜
１／１００の範囲にあるものが好ましく、またその平均
分子量は２００〜１００，０００の範囲のものが好まし
い。 本発明の分散安定剤は、石炭の重量に基づいて通
常０．０５〜５重量％の割合で石炭微粉末の水スラリー
中に添加される。The alkylene oxide adduct of the present invention needs to be dissolved in water. For example, in the case of an adduct containing only ethylene oxide, the weight ratio of the oxide of coal pitch, petroleum pitch, tar, or heavy oil to the polyoxyethylene chain is is 1/1~
The average molecular weight is preferably in the range of 1/100, and the average molecular weight is preferably in the range of 200 to 100,000. The dispersion stabilizer of the present invention is usually added to the water slurry of fine coal powder in a proportion of 0.05 to 5% by weight based on the weight of the coal.
本発明の分散安定剤は、石炭ピッチ、石油ピッチ、ター
ルあるいは！１１！質油から誘導されるものであり、石
炭微粉末と構造上非常に類似しており、分散安定力に優
れている。すなわち、低濃度で使用して安定な分散液を
得ることができる。The dispersion stabilizer of the present invention can be used for coal pitch, petroleum pitch, tar or! 11! It is derived from quality oil, has a very similar structure to fine coal powder, and has excellent dispersion stability. That is, it can be used at low concentrations to obtain stable dispersions.
また、石炭の微粉末の高濃度分散液でも増粘せず、低濃
度の分散液を得ることができ取り扱い上便利である。Further, even a high concentration dispersion of fine coal powder does not thicken, and a low concentration dispersion can be obtained, which is convenient for handling.
また本発明の分散安定剤は非イオン界面活性剤であるた
めイオウ分子や金属イオンを含まず安全性の面から好ま
しいものである。Further, since the dispersion stabilizer of the present invention is a nonionic surfactant, it does not contain sulfur molecules or metal ions and is preferable from the viewpoint of safety.
以下、実施例により本発明を更に詳細に説明するが、本
発明はこれらの実施例に限定されるものではない。EXAMPLES Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples.
実施例１
コールタールピッチ酸化エチレン付加物の製造アセトン
不溶トルエン可溶のコールタールピッチ１００ｇを溶媒
であるトルエン１００ｍ１とともに容量２００ ｍ ｌ
の四つロフラスコ（撹拌装置、玉入り還流管、温度計、
酸素導入管が付所）に入れた。四つロフラスコをマント
ルヒーターにて加熱しながら無触媒下、１１０’ｃの条
件のもとで７０ｒｐｍの速度でかく拌しなからＩｊ２素
ボンベより毎分１２．３３ｍ１の酸素を毛細管にて吹き
込み、この操作を７２時間連続して行なった。なお２４
時間ごとに内容物を少量ずつ採取し、赤外線吸収スペク
トルにて、酸化が進行していることを確認した。この操
作の終了後、常圧下でトルエンを除去し、コールタール
ピッチ酸化物を得た。Example 1 Production of coal tar pitch ethylene oxide adduct 100 g of acetone-insoluble toluene-soluble coal tar pitch was mixed with 100 ml of toluene as a solvent in a volume of 200 ml.
Four-roof flask (stirring device, reflux tube with beads, thermometer,
(An oxygen inlet tube is attached). While heating the four-round flask with a mantle heater and stirring at a speed of 70 rpm under the condition of 110'C in the absence of a catalyst, 12.33 ml of oxygen per minute was blown into the flask from an Ij2 cylinder through a capillary tube. The operation was carried out continuously for 72 hours. Note 24
A small amount of the contents was sampled at intervals, and the progress of oxidation was confirmed by infrared absorption spectroscopy. After completing this operation, toluene was removed under normal pressure to obtain coal tar pitch oxide.
こうして得られたコールタールピッチ酸化物（分子量的
２１２．７）に、エチレンオキサイド（ＥＯ分子量４４
）を３０モル付加させ、石炭ピッチ酸化物エチレンオキ
サイド３０モル付加物を得た。The thus obtained coal tar pitch oxide (molecular weight 212.7) was added with ethylene oxide (EO molecular weight 44.
) was added to obtain a 30 mole adduct of coal pitch oxide and ethylene oxide.
性能評価
微粉炭・水スラリー
上述のようにして得られた石炭ピッチ酸化物・エレンオ
キサイド３０モル付加物１．０ｇを水に溶解し、さらに
水を加えて全体を１００ｇとした（１．０ｗｔ％水溶液
）。Performance Evaluation Pulverized Coal/Water Slurry 1.0 g of the 30 mole adduct of coal pitch oxide/ethylene oxide obtained as described above was dissolved in water, and water was added to make a total of 100 g (1.0 wt% aqueous solution).
国内Ａ炭を７４μｍ以下（２００メツシユ以下）に粉細
したもの１０ｇと、上記水溶液１０ｍ１を、メノウボー
ル（直径５．５ｃｍ、容ｉ ５０ ｍ ｌ ）中、７ｍ
ｍφのメノウボールを６０個入れて、遠心式ボールミル
により回転速度２２Ｏｒｐｍで１２時時間式粉細し、ス
ラリーを調製した。混合後、Ｂ型粘度計を用いて２５°
Ｃにてスラリーの粘度を測定したところ、５ｈｅａｒ
Ｒａｔｅ（ずれ速度）２０ｓｅｃ−１で粘度は２７０
ｃｐであった。10 g of domestic A charcoal pulverized to 74 μm or less (200 mesh or less) and 10 ml of the above aqueous solution were placed in a 7 m agate ball (diameter 5.5 cm, volume i 50 ml).
A slurry was prepared by putting 60 agate balls of mφ in diameter and milling the mixture in a centrifugal ball mill at a rotational speed of 22 rpm for 12 hours. After mixing, use a B-type viscometer to
When the viscosity of the slurry was measured at C, it was 5hear
The viscosity is 270 at a rate of 20 sec-1.
It was cp.
出願人 日光ケミカルズ株式会社 日本サーファクタント工業株式会社 目黒謙次部Applicant: Nikko Chemicals Co., Ltd. Nippon Surfactant Industry Co., Ltd. Kenjibe Meguro
Claims (1)
質油を酸化することによって得られる酸化物にアルキレ
ンオキサイドを付加重合した非イオン界面活性剤からな
ることを特徴とする石炭微粉末の水系分散安定剤。 ２、アルキレンオキサイドがエチレンオキサイドである
特許請求の範囲第１項記載の石炭微粉末の水系分散安定
剤。 ３、非イオン界面活性剤の石炭ピッチ、石油ピッチ、タ
ールあるいは／および重質油の酸化物とポリオキシエチ
レン鎖との重量比が１／１〜１／１００であり、かつ平
均分子量が２００〜１００，０００である特許請求の範
囲第２項記載の石炭微粉末の水系分散安定剤。[Claims] 1. Coal characterized by being made of a nonionic surfactant obtained by addition-polymerizing alkylene oxide to an oxide obtained by oxidizing coal pitch, petroleum pitch, tar, and/or heavy oil. Fine powder aqueous dispersion stabilizer. 2. The aqueous dispersion stabilizer for fine coal powder according to claim 1, wherein the alkylene oxide is ethylene oxide. 3. The nonionic surfactant has a weight ratio of coal pitch, petroleum pitch, tar or/and heavy oil oxide to polyoxyethylene chain of 1/1 to 1/100, and an average molecular weight of 200 to 1/100. The aqueous dispersion stabilizer for fine coal powder according to claim 2, which has a molecular weight of 100,000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62252594A JPH0196293A (en) | 1987-10-08 | 1987-10-08 | Dispersion stabilizer for aqueous system of fine coal powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62252594A JPH0196293A (en) | 1987-10-08 | 1987-10-08 | Dispersion stabilizer for aqueous system of fine coal powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0196293A true JPH0196293A (en) | 1989-04-14 |
Family
ID=17239540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62252594A Pending JPH0196293A (en) | 1987-10-08 | 1987-10-08 | Dispersion stabilizer for aqueous system of fine coal powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0196293A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011219675A (en) * | 2010-04-13 | 2011-11-04 | Nalco Japan Kk | Stabilizer for w/o emulsion fuel and w/o emulsion fuel using the same |
-
1987
- 1987-10-08 JP JP62252594A patent/JPH0196293A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011219675A (en) * | 2010-04-13 | 2011-11-04 | Nalco Japan Kk | Stabilizer for w/o emulsion fuel and w/o emulsion fuel using the same |
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