JP2781648B2 - Carbonaceous selective flocculant - Google Patents
Carbonaceous selective flocculantInfo
- Publication number
- JP2781648B2 JP2781648B2 JP22000690A JP22000690A JP2781648B2 JP 2781648 B2 JP2781648 B2 JP 2781648B2 JP 22000690 A JP22000690 A JP 22000690A JP 22000690 A JP22000690 A JP 22000690A JP 2781648 B2 JP2781648 B2 JP 2781648B2
- Authority
- JP
- Japan
- Prior art keywords
- carbonaceous
- flocculant
- copolymer
- acrylamide
- carbonaceous material
- 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 - Fee Related
Links
- 229920001577 copolymer Polymers 0.000 claims description 7
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 5
- 239000000701 coagulant Substances 0.000 claims description 5
- DUGJRLKMNIZZBZ-UHFFFAOYSA-M sodium;2-ethyl-2-(prop-2-enoylamino)butane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(CC)(CC)NC(=O)C=C DUGJRLKMNIZZBZ-UHFFFAOYSA-M 0.000 claims description 4
- WLYYZJVKEINDNW-UHFFFAOYSA-M sodium;hexane-3-sulfonate Chemical compound [Na+].CCCC(CC)S([O-])(=O)=O WLYYZJVKEINDNW-UHFFFAOYSA-M 0.000 claims 1
- 239000003575 carbonaceous material Substances 0.000 description 11
- 239000003245 coal Substances 0.000 description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000004931 aggregating effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000004520 agglutination Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000005115 demineralization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M methacrylate group Chemical group C(C(=C)C)(=O)[O-] CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011780 sodium chloride Substances 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
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は石炭の脱灰プロセスあるいは石炭スラッジか
らの炭素質の回収に適用される凝集剤に関する。Description: TECHNICAL FIELD The present invention relates to a flocculant applied to a coal demineralization process or a recovery of carbonaceous material from coal sludge.
従来の凝集剤はアクリルアミドとアクリル酸あるいは
アクリルアミドとカチオン性の４級化メタクリレートの
共重合物が主体で炭素質を択選的に凝集させ回収率を高
めることが困難であった。The conventional flocculant is mainly composed of acrylamide and acrylic acid or a copolymer of acrylamide and cationic quaternary methacrylate, and it has been difficult to selectively flocculate carbonaceous materials and increase the recovery rate.
従来の凝集剤は炭素質と鉱物質とが水中に共存懸濁し
ている場合、炭素質と鉱物質との両方を凝集させる作用
があった。又若干炭素質を選択的に凝集させる凝集剤で
も炭素質の回収率を上げると、鉱物質の混入率が高くな
り選択率が低下する傾向にあった。The conventional flocculant has an action of coagulating both carbonaceous material and mineral matter when carbonaceous material and mineral matter coexist in water. In addition, when the recovery rate of carbonaceous material is increased even with a flocculant that selectively aggregates carbonaceous material, the mixing ratio of mineral substances tends to increase, and the selectivity tends to decrease.
こうした状況から凝集剤を利用した炭素質の回収プロ
セスの例は少なく、排水処理に適用されるものは炭素
質、鉱物質双方を凝集させる凝集剤であった。又炭素質
の回収のためには浮遊選鉱、オイルアグロメレーション
法等を用いてきたが、浮遊選鉱は一般に74〜500μの粒
子に対して用いられるに過ぎず、オイルアグロメレーシ
ョンは多量の油を使用する必要があった。そのため、74
μ以下の粒子が大い微粉炭、スラッジでは、これらのプ
ロセスは効率が悪かった。そこで、微粒子に対して効果
的な凝集法で炭素質に選択的に作用する凝集剤を提供す
ることができれば、石炭の脱灰プロセス、スラッジ水か
らの炭素質の回収は容易になるので、このような凝集剤
の開発が望まれていた。Under such circumstances, there are few examples of a carbonaceous recovery process using a coagulant, and a coagulant that coagulates both carbonaceous and mineral substances is applied to wastewater treatment. In order to recover carbonaceous materials, flotation or oil agglomeration has been used, but flotation is generally used only for particles of 74 to 500μ, and oil agglomeration is Had to use. Therefore, 74
For pulverized coal and sludge with large sub-μ particles, these processes were inefficient. Therefore, if an aggregating agent that selectively acts on carbonaceous material can be provided by an effective agglomeration method for fine particles, the decalcification process of coal and the recovery of carbonaceous material from sludge water will be facilitated. The development of such a flocculant has been desired.
本発明は上記技術水準に鑑み、上記要望に応じ得る炭
素質の選択的凝集剤を提供しようとするものである。The present invention has been made in view of the above technical level, and aims to provide a carbonaceous selective flocculant which can meet the above demands.
本発明は、凝集剤をアクリルアミドと２−アクリルア
ミド−２−エチルブタンスルホン酸ナトリウム塩の共重
合体とすることにより、水中に懸濁している炭素質と鉱
物質に対して炭素質を選択的に凝集させる作用をもたせ
るようにしたものである。又、その作用を効果的にする
ために共重合体に占める２−アクリルアミド−２−エチ
ルブタンスルホン酸ナトリウム塩の割合を、２〜20モル
％とした。共重合体の溶融粘度は５％NaCl水溶液中、0.
5％で50〜100cpとなるものとするのが好ましい。The present invention uses a coagulant as a copolymer of acrylamide and sodium 2-acrylamido-2-ethylbutanesulfonate to selectively carbonize carbonaceous substances and mineral substances suspended in water. It has a function of causing aggregation. In order to make the action effective, the proportion of 2-acrylamido-2-ethylbutanesulfonic acid sodium salt in the copolymer was set to 2 to 20 mol%. The melt viscosity of the copolymer was 0.5% in a 5% aqueous NaCl solution.
It is preferable that the concentration is 50 to 100 cp at 5%.
凝集剤の構成をアクリルアミドと２−アクリルアミド
−２−エチルブタンスルホン酸ナトリウム塩の共重合体
とすることにより炭素質を選択的に凝集させる作用を与
えた。By using a coagulant as a copolymer of acrylamide and sodium 2-acrylamido-2-ethylbutanesulfonate, an action of selectively coagulating carbonaceous material was provided.
豪州産のワークワース炭（灰分含有量13.2％）をボー
ルミルにて粉砕して44μ以下とし、水中に５％懸濁させ
たものを試料とした。懸濁にはヘキサメタリン酸ナトリ
ウムを300ppm使用した。凝集試験はジャーテスター（池
本理科社製）を用い表に示す凝集剤を用いて行った。Australian-made Warkworth coal (ash content 13.2%) was pulverized with a ball mill to 44 μm or less, and 5% suspended in water was used as a sample. For suspension, 300 ppm of sodium hexametaphosphate was used. The agglutination test was performed using a jar tester (manufactured by Ikemoto Rika) using the aggregating agents shown in the table.
操作は180r.p.m.、５分間撹拌の後、所定の凝集剤を
入れ、60r.p.m.2分間撹拌した。その後、静置し上浄を
とり凝集物を乾燥後、その重量と灰分量を測定した。The operation was performed by stirring at 180 rpm for 5 minutes, then adding a predetermined flocculant, and stirring at 60 rpm for 2 minutes. Thereafter, the mixture was allowed to stand and cleaned, and the aggregate was dried, and the weight and ash content were measured.
この表から示されるように本発明の凝集剤の選択性の
高さが明らかである。As shown in this table, the high selectivity of the flocculant of the present invention is apparent.
〔発明の効果〕 本発明の凝集剤により、石炭の微粉懸濁液から石炭質
を選択的に回収できるようになった。 [Effects of the Invention] The flocculant of the present invention enables coal quality to be selectively recovered from a fine powder suspension of coal.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−131307（ＪＰ，Ａ) 特開 昭63−39604（ＪＰ，Ａ) 特開 昭59−196309（ＪＰ，Ａ) 特開 昭57−19010（ＪＰ，Ａ) 特開 昭47−29287（ＪＰ，Ａ) 特開 昭52−37580（ＪＰ，Ａ) 特開 昭54−61285（ＪＰ，Ａ) 特開 昭53−55488（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) B01D 21/01 C02F 1/56──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-131307 (JP, A) JP-A-63-39604 (JP, A) JP-A-59-196309 (JP, A) JP-A-57-196 19010 (JP, A) JP-A-47-29287 (JP, A) JP-A-52-37580 (JP, A) JP-A-54-61285 (JP, A) JP-A-53-55488 (JP, A) (58) Field surveyed (Int. Cl. 6 , DB name) B01D 21/01 C02F 1/56
Claims (2)
−エチルブタンスルホン酸ナトリウム塩の共重合体であ
る炭素質の選択的凝集剤。1. Acrylamide and 2-acrylamide-2
-A carbonaceous selective flocculant which is a copolymer of ethyl butanesulfonic acid sodium salt.
リルアミド−２−エチルブタンスルホン酸ナトリウム塩
の割合が２〜20モル％である炭素質の選択的凝集剤。2. A carbonaceous selective coagulant wherein the proportion of 2-acrylamido-2-ethylbutanesulfonic acid sodium salt in the copolymer of (1) is 2 to 20 mol%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22000690A JP2781648B2 (en) | 1990-08-23 | 1990-08-23 | Carbonaceous selective flocculant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22000690A JP2781648B2 (en) | 1990-08-23 | 1990-08-23 | Carbonaceous selective flocculant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04104804A JPH04104804A (en) | 1992-04-07 |
| JP2781648B2 true JP2781648B2 (en) | 1998-07-30 |
Family
ID=16744458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22000690A Expired - Fee Related JP2781648B2 (en) | 1990-08-23 | 1990-08-23 | Carbonaceous selective flocculant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2781648B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5146679B2 (en) * | 2008-11-21 | 2013-02-20 | 株式会社日向製錬所 | Separation method of fine coal particles |
-
1990
- 1990-08-23 JP JP22000690A patent/JP2781648B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04104804A (en) | 1992-04-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |