JPS6227484A - Method of converting powdery high-molecular coagulant into easily water-soluble particulate hydrous gel - Google Patents
Method of converting powdery high-molecular coagulant into easily water-soluble particulate hydrous gelInfo
- Publication number
- JPS6227484A JPS6227484A JP16653985A JP16653985A JPS6227484A JP S6227484 A JPS6227484 A JP S6227484A JP 16653985 A JP16653985 A JP 16653985A JP 16653985 A JP16653985 A JP 16653985A JP S6227484 A JPS6227484 A JP S6227484A
- Authority
- JP
- Japan
- Prior art keywords
- water
- hydrogel
- powdery high
- molecular coagulant
- soluble
- 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
- 238000000034 method Methods 0.000 title claims description 11
- 239000000701 coagulant Substances 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 16
- -1 sorbitan fatty acid ester Chemical class 0.000 claims abstract description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 10
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 9
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 8
- 229930195729 fatty acid Natural products 0.000 claims abstract description 8
- 239000000194 fatty acid Substances 0.000 claims abstract description 8
- 229920001214 Polysorbate 60 Polymers 0.000 claims abstract description 4
- 239000000017 hydrogel Substances 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 23
- 239000007864 aqueous solution Substances 0.000 claims description 18
- 229920000642 polymer Polymers 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 8
- 239000000499 gel Substances 0.000 abstract description 12
- 239000000428 dust Substances 0.000 abstract description 2
- 239000002195 soluble material Substances 0.000 abstract 2
- 239000002245 particle Substances 0.000 description 11
- 239000000178 monomer Substances 0.000 description 7
- 229920002401 polyacrylamide Polymers 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- 229920002554 vinyl polymer Polymers 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 4
- 239000008394 flocculating agent Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 description 3
- 241000567769 Isurus oxyrinchus Species 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 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
- SJIXRGNQPBQWMK-UHFFFAOYSA-N 2-(diethylamino)ethyl 2-methylprop-2-enoate Chemical compound CCN(CC)CCOC(=O)C(C)=C SJIXRGNQPBQWMK-UHFFFAOYSA-N 0.000 description 1
- QHVBLSNVXDSMEB-UHFFFAOYSA-N 2-(diethylamino)ethyl prop-2-enoate Chemical compound CCN(CC)CCOC(=O)C=C QHVBLSNVXDSMEB-UHFFFAOYSA-N 0.000 description 1
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 1
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-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
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 241001174990 Boros Species 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- YIQOKWWBKOVYBX-UHFFFAOYSA-N [3-(dimethylamino)-3-hydroxypropyl] 2-methylprop-2-enoate Chemical compound CN(C)C(O)CCOC(=O)C(C)=C YIQOKWWBKOVYBX-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 150000008050 dialkyl sulfates Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- RCLLINSDAJVOHP-UHFFFAOYSA-N n-ethyl-n',n'-dimethylprop-2-enehydrazide Chemical compound CCN(N(C)C)C(=O)C=C RCLLINSDAJVOHP-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Landscapes
- Colloid Chemistry (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、粉末高分子凝集剤を扱い易い粒状の含水ゲル
体にする方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for converting a powdered polymer flocculant into a granular hydrogel that is easy to handle.
従来技術
従来から市販されているアニオン性及びカチオン性凝集
剤の大部分は粉末状であり、次のような欠点を有してい
る。Prior Art Most of the conventionally commercially available anionic and cationic flocculants are in powder form and have the following drawbacks.
i)微粉の舞い立ち
粉末製品に含まれる微粉、特に200メツシユパスの微
粉は、使用時における仕込みの際に、舞い立ち易く、作
業者の顔面に付着して、眼、唇、鼻などの粘膜の水分を
吸収し、その多大な吸収湿潤性からゼリー状の濃厚液体
となり、気管内壁等に付着するなど、健康上問題となる
ことが多い。i) Flying of fine powder The fine powder contained in powdered products, especially the fine powder of 200 mesh powder, tends to fly when it is prepared during use, and it can adhere to the face of the worker and cause damage to the mucous membranes of the eyes, lips, nose, etc. It absorbs water and becomes a jelly-like thick liquid due to its high wettability, which often causes health problems such as adhesion to the inner walls of the trachea.
また、微粉の舞い立ちは、使用時に作業場の床面に粉末
製品の薄層を形成することとなるが、粉末製品が作業場
の漏水と混ざると、滑り易くなり、作業者の転倒事故を
起こす危険性もあった。In addition, the flight of fine powder will form a thin layer of powder product on the floor of the workplace during use, but if the powder product mixes with water leakage in the workplace, it will become slippery and there is a risk of falling accidents for workers. There was also sex.
ii )ままこの発生
粉末製品は通常、水で溶解して使用するが、一般に粉末
製品はままこを生じ易く、一度発生したままこは、空気
を内部に含有し、外表面は湿潤状態に置かれるため、粉
末製品を水に溶解し難くするものであり、粉末製品を3
0分以下の短時間で水に均一に溶解するためには特別な
装置、例えば特公昭5B−42204号公報や特開昭5
8−79525号公報記載の装置などが必要であるとさ
れていた。ii) Powdered products are usually used by dissolving them in water, but in general, powder products tend to generate mako, and once mako occurs, it contains air inside and the outer surface is left in a moist state. This makes powder products difficult to dissolve in water, and
In order to dissolve uniformly in water in a short time of 0 minutes or less, special equipment is required, such as Japanese Patent Publication No. 5B-42204 and Japanese Patent Application Laid-open No. 5B-42204.
It was believed that a device such as that described in Publication No. 8-79525 was required.
このように、従来の粉末製品は、その水溶性と高分子量
に基づく優れた効能を有しながら、取り扱い面では、多
くの問題を有しており、これらの問題の効率的な解決法
が求められる。As described above, although conventional powder products have excellent efficacy based on their water solubility and high molecular weight, they have many problems in terms of handling, and there is a need for efficient solutions to these problems. It will be done.
その解決法として、凝集剤メーカーは振力200メツシ
ュパス分を篩選別し、比較的粗い粒子に限り製品化しよ
うとしているのが現状であり、ままこを生じることなく
簡単に溶解する凝集剤の開発も試みられているが、粒状
物相互の付着(ケーキング)の問題があり、まだ決定的
な製品は得られていない。As a solution to this problem, flocculant manufacturers are currently trying to screen 200 mesh passes of vibration force and commercialize only relatively coarse particles, and are developing flocculants that can be easily dissolved without causing lumps. Although attempts have also been made, there is a problem of mutual adhesion (caking) of particles, and no definitive product has been obtained yet.
新たな方法として、特願昭59−23356号には、水
溶性ビニルモノマーの水溶液を重合させて得られた重合
体ゲルを破砕したのち、平均粉砕滞留時間が少なくとも
3分以上となる竪型切断により、これを更に細粒化し、
微粉の発生を伴わないで粉末を製造する方法が開示され
る。この方法では、含水状態にある重合ゲル体を粉砕し
、含水状態を保ったまま乾燥させて微粉を含まない、粒
径分布の鋭い粒状物を得ることができるが、特別な装置
を必要とするため、高額な設備投資を必要とする。As a new method, Japanese Patent Application No. 59-23356 discloses a method in which a polymer gel obtained by polymerizing an aqueous solution of a water-soluble vinyl monomer is crushed, and then a vertical cutting process is performed in which the average crushing residence time is at least 3 minutes or more. This is further refined by
A method of producing powder without the generation of fines is disclosed. In this method, a polymer gel in a water-containing state is crushed and dried while maintaining a water-containing state to obtain granules that do not contain fine particles and have a sharp particle size distribution, but special equipment is required. Therefore, large capital investment is required.
発明の目的
本発明は、粉末高分子凝集剤を、微粉の発生や相互付着
を伴うことなく、作業性よく、水に溶解し易い微粒状の
含水ゲル体に転する方法を提供することを目的とする。Purpose of the Invention The purpose of the present invention is to provide a method for converting a powdered polymer flocculant into a fine-grained hydrogel that is easily soluble in water and has good workability without generating fine powder or mutual adhesion. shall be.
発明の構成
本発明の方法は、粉末高分子凝集剤とへポリエチレング
リコール、ソルビタン脂肪酸エステル及びポリオキシエ
チレンゾルビタン脂肪酸エステルから選ばれる少なくと
も一種の水溶性物質の0.5〜10重量%水溶液を、重
量比率で1対0.13〜3.00割合で、撹拌槽に連続
供給し、撹拌混合して20〜80重量%の水分を含む粒
状の含水ゲル体を製造することを特徴とする。Structure of the Invention The method of the present invention comprises adding a 0.5 to 10% by weight aqueous solution of at least one water-soluble substance selected from polyethylene glycol, sorbitan fatty acid ester, and polyoxyethylene sorbitan fatty acid ester to a powdered polymer flocculant; It is characterized in that it is continuously supplied to a stirring tank at a weight ratio of 1:0.13 to 3.00, and is stirred and mixed to produce a granular hydrogel containing water of 20 to 80% by weight.
即ち、本発明では、粉末高分子凝集剤が撹拌槽で特定の
水溶性物質の水溶液と強制的に混合され、瞬時にして上
記水溶液を吸収して、粒状の含水ゲル体になるものであ
り、含水ゲル体の粒子径は粉末高分子凝集剤の粒径及び
それと併用する上記水ン容液の量を変化させることによ
って、任意に選定できる。That is, in the present invention, a powdered polymer flocculant is forcibly mixed with an aqueous solution of a specific water-soluble substance in a stirring tank, and instantaneously absorbs the aqueous solution to form a granular hydrogel. The particle size of the hydrogel can be arbitrarily selected by changing the particle size of the powdered polymer flocculant and the amount of the water solution used together with it.
粉末高分子凝集剤の粒径の増大に応じて粒径の大きな含
水ゲル体を得ることができ、また上記水溶液の量を増す
ことによっても粒径の大きな含水ゲル体を得ることがで
きる。例えば、平均粒径0゜5mmの粉末高分子凝集剤
を用いて上記水溶液の使用量を変えることによって、0
.6〜7.0mmの粒径の含水ゲル体が容易に製造でき
る。A hydrogel with a large particle size can be obtained by increasing the particle size of the powdered polymer flocculant, and a hydrogel with a large particle size can also be obtained by increasing the amount of the aqueous solution. For example, by using a powdered polymer flocculant with an average particle size of 0.5 mm and changing the amount of the aqueous solution used,
.. A hydrogel having a particle size of 6 to 7.0 mm can be easily produced.
また、上記水溶液に含まれる水溶性物質の量は0.5〜
10重量%であるが、これが過少であると、生成した含
水ゲル体が相互に付着し、撹拌に伴ってゲル体は塊状と
なり、目的とする製品を得ることはできない。逆に、水
溶性物質の量が過多であると、不経済なだけでなく、使
用時に水溶性物質の存在が弊害を伴うこともあり、好ま
しくない。Further, the amount of water-soluble substances contained in the above aqueous solution is 0.5 to
The amount is 10% by weight, but if it is too small, the produced hydrogels will adhere to each other and become lumpy upon stirring, making it impossible to obtain the desired product. On the other hand, if the amount of the water-soluble substance is too large, it is not only uneconomical, but also the presence of the water-soluble substance may cause harmful effects during use, which is not preferable.
本発明で使用する水溶液の水溶性物質濃度は通常1〜5
重量%であるのが好ましい。The concentration of water-soluble substances in the aqueous solution used in the present invention is usually 1 to 5.
Preferably, it is % by weight.
また、ゲル体の含水率が20重ボロ未満では、粉体とな
り、本発明の目的とする含水ゲル体を得ることはできず
、80重ボロを越えると熔解性の優れた安定した含水ゲ
ル体を形成することはできない。Furthermore, if the water content of the gel body is less than 20 boros, it becomes a powder, and it is impossible to obtain the hydrogel body which is the object of the present invention. cannot be formed.
なお、本発明において生成した含水ゲル体は、可能な限
り速やかに撹拌槽から取り出されるのが望ましく、滞留
時間が長くなると含水ゲル体相互の付着をもたらす危険
性がある。一般に含水ゲル体の滞留時間は1〜10秒で
あるのが望ましい。Note that it is desirable that the hydrogel produced in the present invention be taken out of the stirring tank as quickly as possible; if the residence time is too long, there is a risk that the hydrogel may adhere to each other. Generally, it is desirable that the residence time of the hydrogel is 1 to 10 seconds.
このような本発明は、−M的な粉末高分子凝集剤すべて
に効果的に適用できるが、代表的な粉末高分子凝集剤と
しては、ポリアクリルアミド、ポリアクリルアミド部分
加水分解物、及びポリアクリルアミドと他のビニルモノ
マーとの水溶性共重合体等が挙げられ、ポリアクリルア
ミドと共重合されるビニルモノマーとしては、ジメチル
アミノエチルアクリレート、ジメチルアミノエチルメタ
クリレート、ジエチルアミノエチルアクリレート、ジエ
チルアミノエチルメタクリレート、ジメチルアミノヒド
ロキシプロピルアクリレート、ジメチルアミノヒドロキ
シプロビルメタクリレート、ジメチルアミノエチルアク
リルアミド等の陽イオン性ビニルモノマー、前記陽イオ
ン性ビニルモノマーをアルキルハライド、ジアルキル硫
酸などの四級化剤で第四級アンモニウム塩化したもの、
アクリロニトリル、メタクリレートリル、メチルアクリ
レート、エチルアクリレート、メタクリルアミドなどの
非イオン性モノマー、アクリル酸、メタクリル酸あるい
は、それらの塩などの陰イオン性七ツマ−などが挙げら
れる。Although the present invention can be effectively applied to all -M powder polymer flocculants, typical powder polymer flocculants include polyacrylamide, polyacrylamide partial hydrolyzate, and polyacrylamide. Examples include water-soluble copolymers with other vinyl monomers. Vinyl monomers copolymerized with polyacrylamide include dimethylaminoethyl acrylate, dimethylaminoethyl methacrylate, diethylaminoethyl acrylate, diethylaminoethyl methacrylate, and dimethylaminohydroxypropyl. Cationic vinyl monomers such as acrylate, dimethylaminohydroxypropyl methacrylate, and dimethylaminoethyl acrylamide; quaternary ammonium salts of the above-mentioned cationic vinyl monomers with quaternizing agents such as alkyl halides and dialkyl sulfates;
Examples include nonionic monomers such as acrylonitrile, methacrylate, methyl acrylate, ethyl acrylate, and methacrylamide, and anionic monomers such as acrylic acid, methacrylic acid, and salts thereof.
また、粉末高分子凝集側と併用される水溶液に含まれる
水溶性物質としては、平均分子量300〜50,000
.特に平均分子量1000〜10゜OOOのポリエチレ
ングリコール、又はHLB 10以上のポリオキシエチ
レンゾルビタン脂肪酸エステルを使用するのが好ましい
。In addition, the water-soluble substances contained in the aqueous solution used together with the powder polymer aggregation side have an average molecular weight of 300 to 50,000.
.. In particular, it is preferable to use polyethylene glycol having an average molecular weight of 1000 to 10°OOO or polyoxyethylene sorbitan fatty acid ester having an HLB of 10 or more.
次に、実施例に従って本発明を更に詳しく説明するが、
実施例では図面に示す撹拌装置を使用した。Next, the present invention will be explained in more detail according to examples.
In the examples, the stirring device shown in the drawings was used.
この撹拌装置は水門式排出上部板(4)及び下部板(5
)を存する水門式排出口(9)を円筒型容器+11の側
部に有するものであって、円筒型容器(1)の下方中央
には、垂直駆動モータ(7)によって回転する駆動軸(
8)が存在し、この駆動軸(8)に長短2種の回転@
(21(3)が上下に取りつけられており、更に、撹拌
槽+11上方には水溶液貯蔵槽(6)が設けられ、ポリ
エチレングリコールなどの水溶液がこの水溶液貯蔵槽(
6)から供給管(10)から円筒型容器(1)に導入さ
れるようになっている。なお、当該水溶液の導入速度は
パルプ(11)によって調整され、また粉末凝集剤は直
接円筒型容器Tllに投入されるようになっているもの
である。This stirring device consists of a water gate type discharge upper plate (4) and a lower plate (5).
) is provided on the side of the cylindrical container (11), and in the lower center of the cylindrical container (1) is a drive shaft (
8) exists, and this drive shaft (8) has two types of rotation, long and short.
(21 (3) are attached above and below, and an aqueous solution storage tank (6) is provided above the stirring tank +11, and an aqueous solution such as polyethylene glycol is stored in this aqueous solution storage tank (
6) and is introduced into the cylindrical container (1) from the supply pipe (10). Note that the introduction speed of the aqueous solution is adjusted by the pulp (11), and the powder flocculant is directly charged into the cylindrical container Tll.
実施例(1)
図面に示す直径50cm、高さ60cmの円筒型容器+
11に、回転翼(21T31を400r/mの速度で回
転させながら、分子量2000万で、lN−NaC1水
溶液中30℃で測定した固有粘度(η)が24゜2であ
るポリアクリルアミド凝集剤(加水分解率20モル%で
、200メツシュパス分1%を含む平均粒子径0.55
+amの粉末)を20.1 kg/hrの速度で円筒型
容器(1)の上部より供給し、同時に水溶液貯蔵槽(4
)から分子量6000のポリエチレングリコールの5%
水溶液を16.3 k+r/hrの速度で供給した。こ
の方法を23分間連続的に実施したが、投入されたポリ
アクリルアミド凝集剤は短時間でポリエチレングリコー
ルの5%水溶液を吸収して膨潤し、平均粒子径0.75
mmの粒状の含水ゲル体が連続的に得られた(収量:1
4.1kr)。Example (1) Cylindrical container with a diameter of 50 cm and a height of 60 cm shown in the drawing +
11, while rotating a rotary blade (21T31 at a speed of 400 r/m), a polyacrylamide flocculant (hydrated Decomposition rate 20 mol%, average particle size 0.55 including 200 mesh pass 1%
+ am powder) was supplied from the top of the cylindrical container (1) at a rate of 20.1 kg/hr, and at the same time the aqueous solution storage tank (4
) to 5% of polyethylene glycol with a molecular weight of 6000
The aqueous solution was fed at a rate of 16.3 k+r/hr. This method was carried out continuously for 23 minutes, but the introduced polyacrylamide flocculant absorbed a 5% aqueous solution of polyethylene glycol in a short time and swelled, with an average particle size of 0.75.
mm-sized granular hydrogel was continuously obtained (yield: 1
4.1 kr).
この含水ゲル体は固形分50.6%(含水率49゜4%
)で、適当な水分を含むため、しっとりした外観を有し
粉塵を生じることなく、しかも粒子間の付着やケーキン
グ現象のない扱い易い製品であり、水への溶解性も原料
の粉末状ポリアクリルアミドの溶解性とほぼ同様に良好
であった。This hydrogel has a solid content of 50.6% (water content of 49.4%).
), it contains an appropriate amount of moisture, so it has a moist appearance and does not generate dust, and is easy to handle without interparticle adhesion or caking. The solubility was almost as good as that of .
ポリエチレングリコール水溶液の添加速度を表Iに示す
通り変化させて上記と同様の実験を行い、含水率の異な
るゲル体を得た。各種ゲル体の水に対する溶解速度を測
定した結果を、未処理の凝集剤の測定値(No、1)と
共に表1に示す。Experiments similar to those described above were conducted by changing the addition rate of the aqueous polyethylene glycol solution as shown in Table I, and gel bodies with different water contents were obtained. The results of measuring the dissolution rate of various gels in water are shown in Table 1 along with the measured values for the untreated flocculant (No. 1).
表I
*)溶解速度は、2000ccのビーカーに脱イオン水
とゲル体を所定量(ポリアクリルアミドの0.5%の溶
液を200cc製造できる量)投入し、5cm長のマグ
ネチックスクーラーを用いて回転速度300r/mの撹
拌をし、撹拌開始後5分、10分、20分、30分、4
0分の粘度をBH型粘度計ローターNo、 1を用いて
20r/mにて測定した。Table I *) Dissolution rate is calculated by pouring a predetermined amount of deionized water and gel into a 2000 cc beaker (an amount that can produce 200 cc of 0.5% solution of polyacrylamide), and rotating it using a 5 cm long magnetic cooler. Stir at a speed of 300 r/m, 5 minutes, 10 minutes, 20 minutes, 30 minutes, 4 minutes after the start of stirring.
The viscosity at 0 min was measured using a BH type viscometer rotor No. 1 at 20 r/m.
表1から明らかなように、本発明に従ったNo、2〜4
の含水ゲル体は約20分で完全に溶解されるのに対し、
No、1の粉末状の製品は溶解に30分以上を要するも
のであった。なお、N001の粉末状の製品は溶解時に
一時的に「ままこ」現象が生じ、均一な溶解には時間が
かかった。As is clear from Table 1, Nos. 2 to 4 according to the present invention
While the hydrogel is completely dissolved in about 20 minutes,
The powdered product No. 1 required 30 minutes or more to dissolve. It should be noted that the powdered product of N001 temporarily caused a "stank" phenomenon during dissolution, and it took time for uniform dissolution.
実施例〔2〕
分子量の異なるポリエチレングリコールを使用して実施
例〔1〕と同様の方法を実施した。各製品(含水ゲル体
)の性状を表■に示す。Example [2] A method similar to Example [1] was carried out using polyethylene glycols having different molecular weights. The properties of each product (hydrogel) are shown in Table ■.
表■ 注)含水ゲル体の直径は平均直径をIで表す。Table■ Note) The average diameter of the hydrogel is expressed as I.
含水ゲル体の付着性は、含水ゲル体を30cmX20c
mの面積で厚さ25II11の層状に重ね、0、06
kg/cm ”の荷重を与え、常温で6日間放置した後
、含水ゲル体相互間の付着性を調べた。The adhesion of the hydrogel is 30cm x 20cm.
Layered in layers with an area of m and a thickness of 25II11, 0,06
After applying a load of "kg/cm2" and leaving it at room temperature for 6 days, the adhesion between the hydrogel bodies was examined.
いずれの製品も、含水ゲル体同志の相互付着性はなく、
手で容易にもみほぐすことが出来た。固化(ケーキング
)現象も認められなかった。In both products, the hydrogel bodies do not adhere to each other,
I was able to easily massage it with my hands. No solidification (caking) phenomenon was observed.
実施例〔3〕
ポリエチレングリコールの代わりにHLB= 16゜7
のポリオキシエチレンソルビクン脂肪酸エステル(モノ
ウレート)を使用した以外は実施例〔1〕と同様にして
各種含水率の含水ゲル体を得た。得られた含水ゲル体の
性状を表■に示すが、いずれも水に対する溶解性の良好
な相互付着性及び固化現象のない扱い易い製品であった
。Example [3] HLB=16°7 instead of polyethylene glycol
Hydrogels having various water contents were obtained in the same manner as in Example [1] except that polyoxyethylene sorbicun fatty acid ester (monourate) was used. The properties of the obtained hydrogels are shown in Table (1), and all of them were easy-to-handle products with good solubility in water, mutual adhesion, and no solidification phenomenon.
表■
注)含水ゲル体の付着性は、含水ゲル体を30cwX2
0cmの面積で厚さ25Iの層状に重ね、0.06 k
g/cm ”の荷重を与え、常温で7日間放置した後、
含水ゲル体相互間の付着性を調べた。Table ■ Note) The adhesion of the hydrogel is 30cw x 2.
Layered in a layer with a thickness of 25I in an area of 0cm, 0.06k
After applying a load of “g/cm” and leaving it at room temperature for 7 days,
The adhesion between hydrogel bodies was investigated.
発明の効果
本発明では、粉末高分子凝集側を簡単に水に溶けやすい
粒状の含水ゲル体に調製できる。本発明で得られる含水
ゲル体は、微粉となって作業場の環境を悪化することは
なく、また常温でも「ままこ」を生じることなく約20
分という短時間で水に均一に溶解できる非常に扱い易い
ものであり、含水ゲル体同志の相互付着(ケーキング)
を生ずることもない。Effects of the Invention In the present invention, the powder polymer aggregate side can be easily prepared into a granular hydrogel that is easily soluble in water. The water-containing gel obtained by the present invention does not turn into fine powder and deteriorate the environment of the workplace, and even at room temperature, the water-containing gel body does not cause "stickiness" and has a
It is extremely easy to handle as it can be uniformly dissolved in water in a short time of minutes, and it is highly effective for mutual adhesion (caking) of hydrogel bodies.
It does not cause
図面は本発明の実施例で使用した撹拌装置の断面図であ
る。
(1) 円m型容器
+21 +31 回転翼
(4) 水溶液貯蔵槽
(5) 水門式山上部板
(6) 水門式出下部板
(7) 垂直駆動モータ
(8) 駆動軸
(9) 排出口
(lO) 供給管
(11) パルプThe drawing is a sectional view of a stirring device used in an example of the present invention. (1) M-shaped container +21 +31 Rotating blade (4) Aqueous solution storage tank (5) Water gate type top plate (6) Water gate type outlet plate (7) Vertical drive motor (8) Drive shaft (9) Discharge port ( lO) Supply pipe (11) Pulp
Claims (1)
タン脂肪酸エステル及びポリオキシエチレンゾルビタン
脂肪酸エステルから選ばれる少なくとも一種の水溶性物
質の0.5〜10重量%水溶液を、重量比率で1対0.
13〜3.0の割合で、同時に、撹拌槽に連続供給し、
撹拌混合して20〜80重量%の水分を含む粒状の含水
ゲル体を製造することを特徴とする粉末凝集剤を水易溶
性の粒状含水ゲル体にする方法。A powder polymer flocculant and a 0.5 to 10% by weight aqueous solution of at least one water-soluble substance selected from polyethylene glycol, sorbitan fatty acid ester, and polyoxyethylene sorbitan fatty acid ester are mixed in a weight ratio of 1:0.
At the same time, continuously supplied to the stirring tank at a ratio of 13 to 3.0,
A method for converting a powder flocculant into a water-soluble granular hydrogel, which comprises stirring and mixing to produce a granular hydrogel containing 20 to 80% by weight of water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16653985A JPS6227484A (en) | 1985-07-27 | 1985-07-27 | Method of converting powdery high-molecular coagulant into easily water-soluble particulate hydrous gel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16653985A JPS6227484A (en) | 1985-07-27 | 1985-07-27 | Method of converting powdery high-molecular coagulant into easily water-soluble particulate hydrous gel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6227484A true JPS6227484A (en) | 1987-02-05 |
JPH0218713B2 JPH0218713B2 (en) | 1990-04-26 |
Family
ID=15833156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16653985A Granted JPS6227484A (en) | 1985-07-27 | 1985-07-27 | Method of converting powdery high-molecular coagulant into easily water-soluble particulate hydrous gel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6227484A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6323966A (en) * | 1986-07-17 | 1988-02-01 | Wakunaga Pharmaceut Co Ltd | Granulated paste and production thereof |
US4799962A (en) * | 1987-12-24 | 1989-01-24 | Aqualon Company | Water-soluble polymer dispersion |
-
1985
- 1985-07-27 JP JP16653985A patent/JPS6227484A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6323966A (en) * | 1986-07-17 | 1988-02-01 | Wakunaga Pharmaceut Co Ltd | Granulated paste and production thereof |
US4799962A (en) * | 1987-12-24 | 1989-01-24 | Aqualon Company | Water-soluble polymer dispersion |
Also Published As
Publication number | Publication date |
---|---|
JPH0218713B2 (en) | 1990-04-26 |
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