JP2566782B2 - Method of foaming soda percarbonate - Google Patents
Method of foaming soda percarbonateInfo
- Publication number
- JP2566782B2 JP2566782B2 JP62166879A JP16687987A JP2566782B2 JP 2566782 B2 JP2566782 B2 JP 2566782B2 JP 62166879 A JP62166879 A JP 62166879A JP 16687987 A JP16687987 A JP 16687987A JP 2566782 B2 JP2566782 B2 JP 2566782B2
- Authority
- JP
- Japan
- Prior art keywords
- sodium percarbonate
- heating
- foaming
- percarbonate
- sodium
- 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
Landscapes
- Detergent Compositions (AREA)
Description
【発明の詳細な説明】 本発明は水に添加した時に、発泡し、敏速に溶解する
発泡性過炭酸ソーダを製造するに関する。The present invention relates to the production of effervescent sodium percarbonate which, when added to water, foams and dissolves rapidly.
従来から過炭酸ソーダは衣類の漂白剤、染剤への添加
剤、台所用漂白剤として広く用いられている。Sodium percarbonate has hitherto been widely used as a bleaching agent for clothes, an additive for dyeing agents, and a bleaching agent for kitchens.
しかしながら衣類の漂白剤として用いる場合、水に過
炭酸ソーダを完全に溶解してから衣類を浸漬するのが好
ましく、この場合は何ら問題は生じないが、時には過炭
酸ソーダが完全に溶解しない状態で衣類を浸漬したり、
場合によっては衣類の上に直接過炭酸ソーダをふりかけ
たりすることがある。この様な場合衣類に過炭酸ソーダ
が未溶解のまま付着することになり、局部的な過漂白を
起こしたり、ひいては衣類の強度低下を引き起こすと言
う問題が多く生じている。However, when used as a bleaching agent for clothing, it is preferable to completely dissolve the sodium percarbonate in water before immersing the clothing. In this case, no problem occurs, but sometimes the sodium percarbonate is not completely dissolved. Soaking clothes,
In some cases, sodium carbonate may be sprinkled directly on the clothes. In such a case, the sodium percarbonate remains undissolved and adheres to the clothes, and there are many problems that local over-bleaching occurs and eventually the strength of the clothes decreases.
過炭酸ソーダの水への溶解性を良くすることによりか
かる問題は解決される。過炭酸ソーダを発泡化すれば溶
解性が良くなることは広く知られていることであり、又
加熱処理すれば発泡化することも特公昭45−19965,特開
昭50−70286,特開昭54−43199等により公知である。This problem can be solved by improving the solubility of sodium percarbonate in water. It is widely known that the solubility of sodium percarbonate is improved by foaming it, and that it is foamed by heat treatment, as disclosed in JP-B-45-19965, JP-A-50-70286, and JP-A-50-70286. It is known from 54-43199 and the like.
これら公知の従来の方法は、過炭酸ソーダを流動層乾
燥機、振動乾燥機等に入れ、熱風を送り、過炭酸ソーダ
を流動状にして、熱風で加熱処理する方法、たて型反応
器（円筒状等）に過炭酸ソーダを入れ、反応器に付属し
たジャケットより加熱し、底部より不活性ガスを送り過
炭酸ソーダを流動させて加熱処理する方法等である。い
ずれも過炭酸ソーダをガス体で流動させ乍ら加熱する方
法である。かかる方法で所定の加熱温度時間条件で処理
すると発泡性の過炭酸ソーダは得られるが、有効酸素の
損失が大きく発泡量が少なく且つ原因不明の着色を起こ
すと言う問題、同一条件で処理しても同じ発泡量の製品
が必ずしも得られないと言う不均一発泡性の問題等々工
業的に実施するに当たっては不都合な問題が多々存在す
る。These known conventional methods include a method in which sodium percarbonate is placed in a fluidized bed dryer, a vibration dryer, etc., hot air is sent to make the sodium percarbonate into a fluid state, and heat treatment is performed with hot air, and a vertical reactor ( (For example, in a cylindrical shape), sodium percarbonate is put into the reactor, heated from a jacket attached to the reactor, and an inert gas is sent from the bottom to cause the sodium percarbonate to flow to perform heat treatment. Both are methods in which sodium percarbonate is fluidized in a gas state and heated. Although foamable sodium percarbonate can be obtained by treating with such a method under a predetermined heating temperature and time condition, the problem that the loss of effective oxygen is large and the amount of foaming is small and coloration for which the cause is unknown occurs. However, there are many problems that are inconvenient when industrially carried out, such as the problem of nonuniform foaming property that a product having the same foaming amount cannot always be obtained.
本発明者はこれらの問題点を解決すべく鋭意研究の結
果、横型回転式加熱機を用いて加熱処理することによ
り、有効酸素の損失が少なく高効率で着色性のない均一
な発泡性を有する過炭酸ソーダが得られることを見出し
本発明に至った。As a result of earnest research to solve these problems, the present inventor has a uniform foaming property with less loss of effective oxygen, high efficiency, and no coloring property, by performing heat treatment using a horizontal rotary heater. The present invention has been accomplished by finding that sodium percarbonate can be obtained.
本発明に於て用いられる横型回転式加熱機とは、水平
軸を中心に回転する円筒形横型の反応器部と同部の側壁
を加熱する加熱用ジャケットより成っているものであ
る。必要に応じ反応器部内部に加熱用蛇管を具備しても
良い。ジャケット及び蛇管にスチーム又は加熱された熱
媒を通すことにより過炭酸ソーダの加熱に必要な熱量が
供給される。具体的には所謂ロータリーキルン型加熱機
（炉）が好ましい。The horizontal rotary heater used in the present invention is composed of a cylindrical horizontal reactor section rotating around a horizontal axis and a heating jacket for heating the side wall of the same. If necessary, a heating flexible tube may be provided inside the reactor section. The amount of heat required for heating the sodium percarbonate is supplied by passing steam or a heated heating medium through the jacket and the flexible tube. Specifically, a so-called rotary kiln type heating machine (furnace) is preferable.
円筒形反応器部に投入された過炭酸ソーダは反応器部
の回転により加熱された側壁及び蛇管に逐次均一に接触
し加熱される。The sodium percarbonate charged into the cylindrical reactor portion is sequentially and evenly contacted with the side wall and the spiral tube heated by the rotation of the reactor portion and heated.
本発明は回分式にも、連続式にも適用出来るが、連続
式の方が好ましい。連続式の場合は、円筒形反応器部を
多少傾斜させ、回転させ乍ら上方から過炭酸ソーダを連
続的に一定量投入する。投入された過炭酸ソーダは回転
に従って撹拌され乍ら加熱された円筒部の側壁及び蛇管
に接触し加熱されて下方に移動し、上方から外部に排出
される構造にしておくと良い。The present invention can be applied to both batch type and continuous type, but the continuous type is preferable. In the case of the continuous type, the cylindrical reactor part is slightly inclined and rotated, and a fixed amount of sodium percarbonate is continuously added from above. It is advisable to have a structure in which the charged sodium percarbonate comes into contact with the side wall of the cylindrical portion and the spiral tube that are heated by stirring as they rotate, is heated and moves downward, and is discharged from the upper side to the outside.
加熱処理条件は従来公知の方法と同様でよく、加熱温
度は110〜135℃が好ましく、加熱時間は５〜60分が好ま
しい。この加熱時間は過炭酸ソーダの粒子が所定の温度
に達してからの所要時間である。The heat treatment conditions may be the same as conventionally known methods, the heating temperature is preferably 110 to 135 ° C., and the heating time is preferably 5 to 60 minutes. This heating time is the time required after the particles of sodium percarbonate reach a predetermined temperature.
又加熱処理は適量の空気又は他の不活性ガスを加熱器
に導入しつつ行う。導入する空気又は他の不活性ガスの
流量は特に規定しないが、過炭酸ソーダ1kg当たり１〜3
M3/hrが好ましく又温度は室温から過炭酸ソーダの加熱
処理温度の範囲が好ましい。かくして発生する水蒸気が
除去される。The heat treatment is carried out while introducing an appropriate amount of air or other inert gas into the heater. The flow rate of air or other inert gas to be introduced is not specified, but 1 to 3 per 1 kg of sodium percarbonate.
M 3 / hr is preferred, and the temperature is preferably in the range of room temperature to the heat treatment temperature of sodium percarbonate. The steam thus generated is removed.
又加熱機の回転速度は過炭酸ソーダの粒子が均一に加
熱用側壁及び加熱用蛇管に接触するように撹拌されるに
必要な速度であれば良い。通常周速度で１〜20m/分の範
囲が好ましい。The rotation speed of the heater may be a speed necessary for stirring the particles of the sodium percarbonate so as to uniformly contact the heating side wall and the heating spiral tube. Usually, the peripheral speed is preferably in the range of 1 to 20 m / min.
本発明に於ては、過炭酸ソーダは加熱された円筒形反
応器部の側壁、及び蛇管に接触することによってのみ加
熱されると共に過炭酸ソーダ粒子を機械的に撹拌してい
るため、従来公知の方法である熱風流動化加熱に比較し
て、熱量の過剰供給が行われることが少なく、且つ均一
な加熱が行われるので、熱量過剰供給による活性酸素の
分解損失が少なく高効率で均一な発泡性を有する発泡性
過炭酸ソーダが得られるものと考えられる。In the present invention, the sodium percarbonate is heated only by coming into contact with the side wall of the heated cylindrical reactor portion and the spiral tube and mechanically agitates the sodium percarbonate particles. Compared with the hot air fluidization heating, which is the method described above, since excessive heating is less likely to occur and uniform heating is performed, there is less decomposition loss of active oxygen due to excessive heating and high efficiency and uniform foaming It is considered that a foamable sodium percarbonate having properties is obtained.
本発明は過炭酸ソーダ及び硫酸ナトリウム、炭酸ナト
リウム、炭酸水素ナトリウム、ケイ酸ナトリウム、硫酸
マグネシウム等々の可溶性無機塩、陰イオン性界面活性
剤、非イオン性界面活性剤、両性界面活性剤、石鹸等を
含有した過炭酸ソーダに適用出来る。The present invention is applicable to soluble inorganic salts of sodium percarbonate and sodium sulfate, sodium carbonate, sodium hydrogen carbonate, sodium silicate, magnesium sulfate, etc., anionic surfactants, nonionic surfactants, amphoteric surfactants, soaps, etc. It can be applied to sodium percarbonate containing.
以下、実施例を示すが本発明はこれに制限されるもの
ではない。Examples will be shown below, but the present invention is not limited thereto.
実施例 １ 加熱用ジャケットを具備した直径320mm、長さ1600mm
の横型円筒形加熱機に過炭酸ソーダ（活性酸素含有量1
3.8％）25kgを入れ、10回／分で回転させて撹拌し乍
ら、ジャケットにスチームを通し加熱を開始し、120℃
に達してから30分間120℃での加熱を続けた。この間室
温の空気を100M3/hrで一方より吹き込み、他端から排出
を続けた。得られた発泡性過炭酸ソーダは着色がなく活
性酸素12.3％、発泡量7.2ml/gであった。Example 1 Diameter 320 mm and length 1600 mm equipped with a heating jacket
Sodium percarbonate (active oxygen content 1
3.8%) 25 kg, rotate at 10 times / min and stir, put steam through the jacket and start heating to 120 ° C.
The heating at 120 ° C. was continued for 30 minutes after reaching. During this period, air at room temperature was blown at 100 M 3 / hr from one side and continued to be discharged from the other side. The resulting foamable sodium percarbonate had no color, active oxygen of 12.3%, and foaming amount of 7.2 ml / g.
実施例 ２ 実施例１で用いた加熱機を若干傾斜をつけて設置し、
２回／分で回転させ、ジャケットにスチームを通してか
ら、加熱機の上方より過炭酸ソーダを18kg/hrの割合で
連続的に投入し、下方より連続的に加熱処理された過炭
酸ソーダを取り出した。加熱処理中は加熱機下方より室
温の空気を27M3/hrの流量で導入し、情報より排出し続
けた。下方より排出された過炭酸ソーダの温度は120℃
であり、加熱機内で120℃に保たれている時間は15分で
あった。又その分析値は次の如くであった。Example 2 The heater used in Example 1 was installed with a slight inclination,
After rotating at 2 times / minute and passing steam through the jacket, sodium percarbonate was continuously charged from above the heater at a rate of 18 kg / hr, and the heat-treated sodium percarbonate was continuously removed from below. . During the heat treatment, air at room temperature was introduced from the bottom of the heater at a flow rate of 27 M 3 / hr and continued to be discharged from the information. The temperature of the sodium percarbonate discharged from below is 120 ° C.
And the time kept at 120 ° C. in the heater was 15 minutes. The analytical values were as follows.
フロントページの続き (72)発明者 渡辺 悟 静岡県富士市富士岡580 東海電化工業 株式会社吉原工場内 (56)参考文献 特開 昭54−43199（ＪＰ，Ａ)Front page continuation (72) Inventor Satoru Watanabe 580 Fujioka, Shizuoka Prefecture Tokadenka Kogyo Co., Ltd. Yoshihara factory (56) Reference JP-A-54-43199 (JP, A)
Claims (1)
加熱処理することを特徴とする過炭酸ソーダの発泡化方
法。1. A method of foaming sodium percarbonate, which comprises heat-treating sodium percarbonate using a horizontal rotary heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62166879A JP2566782B2 (en) | 1987-07-06 | 1987-07-06 | Method of foaming soda percarbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62166879A JP2566782B2 (en) | 1987-07-06 | 1987-07-06 | Method of foaming soda percarbonate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6414103A JPS6414103A (en) | 1989-01-18 |
| JP2566782B2 true JP2566782B2 (en) | 1996-12-25 |
Family
ID=15839311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62166879A Expired - Fee Related JP2566782B2 (en) | 1987-07-06 | 1987-07-06 | Method of foaming soda percarbonate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2566782B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5184141A (en) * | 1990-04-05 | 1993-02-02 | Vought Aircraft Company | Structurally-embedded electronics assembly |
| US7182513B1 (en) | 1996-05-21 | 2007-02-27 | Illinois Tool Works Inc. | Zipper strip and method of positioning the strip transverse longitudinal axis |
| JP4702727B2 (en) * | 2000-09-19 | 2011-06-15 | 日本パーオキサイド株式会社 | Method for producing stable and highly soluble coated sodium percarbonate |
| DE10065953A1 (en) * | 2000-12-23 | 2002-07-04 | Degussa | Process for increasing the internal stability of sodium percarbonate |
| CN1732125A (en) * | 2002-12-24 | 2006-02-08 | 索尔维公司 | Coated sodium percarbonate particles, process for their preparation, their use and detergent compositions containing them |
-
1987
- 1987-07-06 JP JP62166879A patent/JP2566782B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6414103A (en) | 1989-01-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |