JPS5936537A - Additive for aqueous coal slurry - Google Patents
Additive for aqueous coal slurryInfo
- Publication number
- JPS5936537A JPS5936537A JP58114916A JP11491683A JPS5936537A JP S5936537 A JPS5936537 A JP S5936537A JP 58114916 A JP58114916 A JP 58114916A JP 11491683 A JP11491683 A JP 11491683A JP S5936537 A JPS5936537 A JP S5936537A
- Authority
- JP
- Japan
- Prior art keywords
- additive
- coal slurry
- slurry
- oxide
- coal
- 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.)
- Granted
Links
Landscapes
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は水スラリー縦用添加剤に関する。[Detailed description of the invention] The present invention relates to a water slurry vertical additive.
本発明において水スラリー炭とは微粉炭中に水を加え、
微粉炭をスラリー状にしたものを云う。In the present invention, water slurry charcoal refers to pulverized coal with water added to it.
A slurry made from pulverized coal.
水スラリー炭は石炭を流動化することにより、貯蔵場所
、輸送上の問題、粉塵公害、自然発火等の問題を解決す
るために提案されている技術である。Water slurry coal is a technology proposed to solve problems such as storage space, transportation problems, dust pollution, and spontaneous combustion by fluidizing coal.
しかしながら微粉炭に単に水を添加混合したのみでは、
スラリー化に多量の水を必要とし、かつまた満足すべき
流動性と安定性を備えた水スラリー炭を得ることができ
ない。このため輸送効率が低く、ボイラー、セメント焼
成炉などでの燃焼性に問題があり、実用に供し得ない。However, simply adding water to pulverized coal
A large amount of water is required for slurrying, and water slurry charcoal cannot be obtained with satisfactory fluidity and stability. For this reason, transportation efficiency is low, and there are problems with combustibility in boilers, cement kilns, etc., and it cannot be put to practical use.
本発明者らは上記問題点を解決するため研究を重ねた結
果、ある種の化合物が水スラリー炭中の含水量を低減さ
せてなおかつ流動性の高いスラリーを得る効果（以下、
減水効果と云う）のあることを見出し、本発明をなすに
到った。As a result of repeated research to solve the above problems, the present inventors found that certain compounds have the effect of reducing the water content in water slurry charcoal and obtaining a slurry with high fluidity (hereinafter referred to as
They discovered that there is a water-reducing effect, and came up with the present invention.
即ち、本発明はフェノール類の酸化アルキレン付加物の
ホルマリン縮合物であって、分子量１゜０００以上を有
する化合物を含有する水スラリー縦用添加剤に関する。That is, the present invention relates to a water slurry vertical additive containing a formalin condensate of an alkylene oxide adduct of phenols and having a molecular weight of 1.000 or more.
本発明に用いるフェノール類としてはフェノール、クレ
ゾール、アルキルフェノール、フェニルフェノール、ス
チレン化フェノール、レゾルシン、ヒドロキノン、ピロ
ガロール、ナフトール等が例示される。好ましくは、ア
ルキルフェノールおよびフェノールである。Examples of the phenols used in the present invention include phenol, cresol, alkylphenol, phenylphenol, styrenated phenol, resorcinol, hydroquinone, pyrogallol, and naphthol. Preferred are alkylphenols and phenols.
上記フェノール類と反応させる酸化アルキレンまたはポ
リアルキレングリコールとしては酸化エチレン、酸化プ
ロピレン、酸化ブチレン、酸化スチレン等またはその重
合体である。これらのものは酸化エチレンと他のエポキ
シ化合物の共重合体が好ましく、これはブロック、ラン
ダム共重合体のいずれであってもよい。好ましくは、酸
化エチレンと酸化プロピレンの共重合体である。The alkylene oxide or polyalkylene glycol to be reacted with the above-mentioned phenols includes ethylene oxide, propylene oxide, butylene oxide, styrene oxide, etc., or polymers thereof. These are preferably copolymers of ethylene oxide and other epoxy compounds, which may be either block or random copolymers. Preferably, it is a copolymer of ethylene oxide and propylene oxide.
酸化プロピレン／酸化エチレン共重合体中、好ましくは
酸化プロピレン／酸化エチレン部分の重量比が１０／９
０〜６０／４０．特に４０ ／’ ６０〜２０／８０が
好ましい。分子量は２．０００〜５０．０００．ＨＬＢ
１０〜１６のものが特に好適である。In the propylene oxide/ethylene oxide copolymer, preferably the weight ratio of the propylene oxide/ethylene oxide portion is 10/9.
0~60/40. Particularly preferred is 40/'60 to 20/80. The molecular weight is 2.000-50.000. H.L.B.
10 to 16 are particularly preferred.
本発明添加剤は、フェノール類をホルマリン縮合後、酸
化アルキレンを付加することにより得られる。ホルマリ
ンとの反応は常套の方法により行なわれる。The additive of the present invention can be obtained by condensing phenols with formalin and then adding alkylene oxide. Reaction with formalin is carried out by conventional methods.
本発明化合物は、さらにその分子中に硫酸エステル残基
、りん酸エステル残基を有していてもよい。The compound of the present invention may further have a sulfate ester residue or a phosphate ester residue in its molecule.
本発明の水スラリー俵用添加剤は、他の界面活性剤、例
えばアニオン、カチオン、他の非イオンおよび両性等の
界面活性剤を配合してもよい。これらの配合剤の量は、
添加剤総量の２０重最％以下、好ましくは５重量％以下
にとどめるのが好ましい。The water slurry bale additive of the present invention may also incorporate other surfactants, such as anionic, cationic, other nonionic and amphoteric surfactants. The amounts of these ingredients are
It is preferable to limit the total amount of additives to 20% by weight or less, preferably 5% by weight or less.
本発明に用いられる水スラリー俵用添加剤は予め水に溶
解した上で、これを微粉炭に加えてもよく、微粉炭と水
の混合物に後から加えてもよい。The water slurry bale additive used in the present invention may be dissolved in water in advance and then added to the pulverized coal, or it may be added later to the mixture of pulverized coal and water.
また予め添加剤を微粉炭に吸着させた後、水と混合して
もよい。Alternatively, the additive may be adsorbed on pulverized coal in advance and then mixed with water.
微粉炭の粒径は２００μ以下、特に２００メツシユ、７
０〜Ｆ３０％パス程度が好ましいがこれに限定されるも
のではない。微粉炭は瀝青炭、亜瀝青炭、褐炭等各種の
ものが使用でき、種類や産地によるスラリー形成に及ぼ
す影響はほとんどない。The particle size of pulverized coal is 200μ or less, especially 200 mesh, 7
A pass of about 0 to F30% is preferable, but is not limited to this. Various types of pulverized coal can be used, such as bituminous coal, sub-bituminous coal, and lignite, and the type and production area have little effect on slurry formation.
本発明の添加剤はこれを加えることにより、水スラリー
炭中の微粉炭濃度を１０〜５０重量％以上向上させるこ
とができ、かつ微粉炭の沈降分離を防止し、流動性を改
良することができる。By adding the additive of the present invention, it is possible to improve the pulverized coal concentration in water slurry coal by 10 to 50% by weight or more, and it is also possible to prevent sedimentation and separation of pulverized coal and improve fluidity. can.
以下、実施例をあげて本発明を説明する。The present invention will be explained below with reference to Examples.
実施例１〜２および比較例１〜３
表−１に示す本発明化合物３．５ｇを水３００ｑに溶解
または分散させ、これに２００メツシユ、７０〜８０％
パスの微粉炭を投入し、ベラ攪拌により水スラリー炭を
調整する。３０℃における水スラリー炭のＢ型粘度計で
測定した粘度が３００Ｑ ｃｐｓになった際の微粉炭投
入量を測定し、微粉炭量を算出した。これを表−１に示
ず。Examples 1 to 2 and Comparative Examples 1 to 3 3.5 g of the present compound shown in Table 1 was dissolved or dispersed in 300 q of water, and 200 mesh, 70 to 80%
Add the pulverized coal from the pass and adjust the water slurry charcoal by stirring with a spatula. The amount of pulverized coal input when the viscosity of the water slurry charcoal at 30° C. measured with a B-type viscometer reached 300 Q cps was measured, and the amount of pulverized coal was calculated. This is not shown in Table-1.
表−１にＰＯとはポリプロピレングリコール鎖を表わし
、ＥＯとはポリエチレングリコール鎖を表わす。In Table 1, PO represents a polypropylene glycol chain, and EO represents a polyethylene glycol chain.
同様に添加剤無添加のものおよびラウリル硫酸ナトリウ
ム、ドデシルベンゼンスルホン酸ナトリウムを添加した
ものを比較例として表−１に示ず。Similarly, Table 1 does not show examples without additives and those with added sodium lauryl sulfate and sodium dodecylbenzenesulfonate as comparative examples.
５−
但し、比較例で用いた添加剤は本発明添加剤の２倍量使
用した。5- However, the additive used in the comparative example was used in twice the amount of the additive of the present invention.
−〇−−〇−
Claims (1)
ン縮合物であって、分子１１，０００以上を有する化合
物を含有する水スラリー縦用添加剤。 ２、 分子量が２，０００から５０．０００の範囲にあ
る第１項記載の添加剤。 ３、 酸化アルキレン重合鎖が酸化プロピレンと酸化エ
チレンのブロック共重合体である第１項記載の添加剤。 ４、 酸化プロピレンと酸化エチレンの重量比が４０／
６０〜１０／９０である第１項記載の添加剤。[Scope of Claims] 1. An additive for vertical water slurry containing a formalin condensate of an alkylene oxide adduct of phenols and having a molecular weight of 11,000 or more. 2. The additive according to item 1, which has a molecular weight in the range of 2,000 to 50,000. 3. The additive according to item 1, wherein the alkylene oxide polymer chain is a block copolymer of propylene oxide and ethylene oxide. 4. The weight ratio of propylene oxide and ethylene oxide is 40/
60 to 10/90.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58114916A JPS5936537A (en) | 1983-06-25 | 1983-06-25 | Additive for aqueous coal slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58114916A JPS5936537A (en) | 1983-06-25 | 1983-06-25 | Additive for aqueous coal slurry |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17927580A Division JPS57102994A (en) | 1980-12-17 | 1980-12-17 | Additive for aqueous coal slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5936537A true JPS5936537A (en) | 1984-02-28 |
| JPH0139719B2 JPH0139719B2 (en) | 1989-08-23 |
Family
ID=14649834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58114916A Granted JPS5936537A (en) | 1983-06-25 | 1983-06-25 | Additive for aqueous coal slurry |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5936537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0691392A1 (en) | 1994-07-05 | 1996-01-10 | Nippon Shokubai Co., Ltd. | Additive for carbonaceous solid-water slurry, method for production thereof, and carbonaceous solid-water slurry composition |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5388008A (en) * | 1977-01-13 | 1978-08-03 | Neos Kk | Stabilizer for oils mixed with coal |
| JPS559695A (en) * | 1978-07-03 | 1980-01-23 | Union Carbide Corp | Transporting aqueous coal slurry |
| JPS5662538A (en) * | 1979-10-25 | 1981-05-28 | Kao Corp | Water-base dispersion stabilizer of fine powder |
| JPS5688496A (en) * | 1979-12-21 | 1981-07-17 | Kao Corp | Granulating agent used in aqueous slurry of coal powder |
| JPS57102994A (en) * | 1980-12-17 | 1982-06-26 | Neos Co Ltd | Additive for aqueous coal slurry |
-
1983
- 1983-06-25 JP JP58114916A patent/JPS5936537A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5388008A (en) * | 1977-01-13 | 1978-08-03 | Neos Kk | Stabilizer for oils mixed with coal |
| JPS559695A (en) * | 1978-07-03 | 1980-01-23 | Union Carbide Corp | Transporting aqueous coal slurry |
| JPS5662538A (en) * | 1979-10-25 | 1981-05-28 | Kao Corp | Water-base dispersion stabilizer of fine powder |
| JPS5688496A (en) * | 1979-12-21 | 1981-07-17 | Kao Corp | Granulating agent used in aqueous slurry of coal powder |
| JPS57102994A (en) * | 1980-12-17 | 1982-06-26 | Neos Co Ltd | Additive for aqueous coal slurry |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0691392A1 (en) | 1994-07-05 | 1996-01-10 | Nippon Shokubai Co., Ltd. | Additive for carbonaceous solid-water slurry, method for production thereof, and carbonaceous solid-water slurry composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0139719B2 (en) | 1989-08-23 |
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