JPS5874508A - Manufacture of sodium percarbonate - Google Patents
Manufacture of sodium percarbonateInfo
- Publication number
- JPS5874508A JPS5874508A JP17031181A JP17031181A JPS5874508A JP S5874508 A JPS5874508 A JP S5874508A JP 17031181 A JP17031181 A JP 17031181A JP 17031181 A JP17031181 A JP 17031181A JP S5874508 A JPS5874508 A JP S5874508A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- silicate
- salt
- sodium
- sodium percarbonate
- 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
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- Glanulating (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は過炭酸ソーダの製造法に関し、保存安定性を有
し、水に対して極めて迅速に溶解する過炭酸ソーダの製
造法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing soda percarbonate, which has storage stability and dissolves very quickly in water.
過炭酸ソーダは過ホウ酸ソーダとならび代表的な酸素系
漂白剤である。過ホウ酸ソーダは常温程度では溶解性が
低く十分に漂白効果を発揮しない。このため温水で洗濯
する１慣のない我国においては、業務用以外には余り利
用されていない。また、塩素系漂白剤も一般に使用され
ているが、これは刺激臭が強く、染色した衣料を脱色す
るなどの欠点がある。Sodium percarbonate is a typical oxygen bleaching agent along with sodium perborate. Sodium perborate has low solubility at room temperature and does not exhibit sufficient bleaching effects. For this reason, in Japan, where people are not used to washing clothes with hot water, they are not used much for purposes other than business purposes. Chlorine bleach is also commonly used, but it has drawbacks such as a strong pungent odor and bleaching of dyed clothing.
近年、塩素系標白剤にみられる欠点を有せず。It does not have the drawbacks seen in recent chlorine-based whitening agents.
常温程度の低温に対する溶解性が高い過炭酸ソーダの重
要が伸長して来ている。Soda percarbonate, which has high solubility at low temperatures around room temperature, is becoming increasingly important.
過炭酸ソーダの製造法としては、炭酸ソーダと過酸化水
素とを反応させて９反応晶出法により過炭酸ソーダ結晶
粉末を得、ついで湿式造粒を行ない乾燥し製品となすの
が一般的である。The common method for producing soda percarbonate is to react sodium carbonate and hydrogen peroxide to obtain a sodium percarbonate crystal powder using a nine-reaction crystallization method, then perform wet granulation and drying to form a product. be.
過炭酸ソーダは一般に空気中に放置すると、吸湿して過
炭酸ソーダの活性酸素濃度の低下をきたし、使用に際し
て十分なる漂白効果を発揮しなくなる。このために水ガ
ラス、リン酸塩、ケイ酸塩、マグネシウム塩などの無機
質化合物を反応生成物に添加する；トと、あるいはポリ
ーチＬ／ ７７９ Ｍ −１゜、 ｍ、’ｔ ｃＭｃｔ
ｔ、！、ｏｔｔ＊＊ｔｂ合物を添加すること、または造
粒物に上記のごとき無機質化合物を噴霧、被覆すること
などが知られている。しかしながら、この様な方法によ
って得られた粒状の過炭酸ソーダは、勿論遇ホウ酸ソー
ダにくらべて溶解性は優れているものの常温における溶
解性はそれ程大きくなく通常の家庭で使用する場合には
溶解させるのに多大な時間を要し、そのために十分なる
漂白効果を発揮し得ない欠点があった。Generally, when soda percarbonate is left in the air, it absorbs moisture and the active oxygen concentration of the sodium percarbonate decreases, so that it no longer exhibits a sufficient bleaching effect when used. For this purpose, inorganic compounds such as water glass, phosphates, silicates, magnesium salts are added to the reaction product;
T,! , ott**tb compounds, or spraying or coating the granules with the above-mentioned inorganic compounds are known. However, although the granular soda percarbonate obtained by this method has superior solubility compared to sodium borate, its solubility at room temperature is not so great and it cannot be dissolved when used in ordinary households. The problem is that it takes a lot of time to bleach, and as a result, a sufficient bleaching effect cannot be achieved.
過炭酸ソーダのこの様な欠点を改良する試みとしては造
粒乾燥された過炭酸ソーダを再び７５〜１３５℃の温度
範囲で特定時間加熱し速溶性を付与する方法がある。こ
の方法によれば確かに比較的良好な溶解性を有する過炭
酸ソーダを得る事ができるが、満足し得る速溶性の製品
を得るには比較的高温下長時間の加熱を要する。As an attempt to improve these drawbacks of sodium percarbonate, there is a method in which granulated and dried sodium percarbonate is heated again at a temperature range of 75 to 135° C. for a specific period of time to impart rapid solubility. Although it is possible to obtain sodium percarbonate having relatively good solubility according to this method, heating for a long time at a relatively high temperature is required to obtain a product with satisfactory rapid dissolution.
しかしながら、この様な条件下で処理することは過炭酸
ソーダの保有する活性酸素が分解により失なわれ、速―
性を有する様になるものの得６、、。Ａ（７）工・、；
・轡、□工、５、よ６、う０的な欠陥を有する□、又工
業的には乾燥機以外の加熱装置を必要とし大きな不利と
なる。However, if the treatment is carried out under such conditions, the active oxygen possessed by sodium percarbonate will be lost due to decomposition, resulting in rapid decomposition.
Benefits of becoming sexually active 6. A (7) Engineering...;
・Having defects such as 轡, □, 5, 6, and 0, and industrially, it requires a heating device other than a dryer, which is a big disadvantage.
本発明者らは、上記の如き諸点に鎌み１種々検討の結果
１本発明者らは従来安定化剤とじて用いられている無機
質化合物、たとえば水ガラス、ケイ酸塩を添加した場合
の水に対する溶解性に関して検討した結果、上記の無機
質化合物を水溶液ないし水分散体として過炭酸ソーダに
添加して湿式造粒する際、その造粒過程において、添加
された無機質化合物はゲル化し１粒子に沈着されるが、
このゲル化の速度の大小が造粒乾燥された顆粒状過炭酸
ソーダの水に対する溶解性の大小に極めて重大な関連が
あることを見出すと共に、添加剤の種類及び組合せが極
めて重要であることが判明し、これに基づき本発明を完
成した。As a result of various studies, the present inventors have found that water glass and silicate, which have been conventionally used as stabilizers, have been added to water glass and silicate. As a result of investigating the solubility of the above-mentioned inorganic compounds in sodium percarbonate as an aqueous solution or aqueous dispersion, it was found that when wet granulation was performed by adding the above inorganic compounds to sodium percarbonate as an aqueous solution or aqueous dispersion, the added inorganic compounds gelled and deposited into one particle during the granulation process. However,
It was discovered that the gelation rate has a very important relationship with the water solubility of the granulated and dried granulated sodium percarbonate, and also that the type and combination of additives are extremely important. Based on this finding, the present invention was completed.
本発明の目的は、水に対する溶惰性にすぐれ。An object of the present invention is to have excellent solubility in water.
かつ安定性を有する釉粒状の過炭酸ソーダを提供するＫ
ある。K provides glazed granular soda percarbonate with stability and stability.
be.
本発明は、粉末状の過炭酸ソーダを造粒するに際して、
過炭酸ソーダにケイ酸ヒドロシルもしくはケイ酸塩また
は含水酸化アルミニウムヒドロシルから選ばれた少なく
とも一種と、リン酸またはその塩、硼酸またはその塩及
び有機多価カルボン酸またはその塩から選ばれた少なく
とも一種とを添加し造粒することを特徴とする過炭酸ソ
ーダの製造法に関する。In the present invention, when granulating powdered soda percarbonate,
Sodium percarbonate, at least one selected from hydrosyl silicate, silicate, or hydrous aluminum oxide, and at least one selected from phosphoric acid or its salt, boric acid or its salt, and organic polyhydric carboxylic acid or its salt. The present invention relates to a method for producing soda percarbonate, which comprises adding and granulating.
本発明において使用されるケイ酸ヒドロシルもしくはケ
イ酸塩または含水酸化フルｊニウムヒドロシル及びリン
酸またはその塩、オルトまたはメタ、硼酸またはその塩
、有機多価カルボン酸またはその塩を以下、添加剤と呼
ぶことがあり、［ケイ酸ヒドロシルもしくはケイ酸塩ま
たは含水酸化アルミニウムヒドロシル」を第１群の添加
剤、「リン酸またはその塩、硼酸またはその塩、有機多
価カルボン酸またはその塩」を第２群の添加剤と呼ぶ。Hydrosyl silicate or silicate or hydrous flujnium oxide used in the present invention, phosphoric acid or its salt, ortho or meta, boric acid or its salt, organic polyhydric carboxylic acid or its salt are hereinafter referred to as additives. [Hydrosyl silicate or silicate or hydrated aluminum oxide] is the additive of the first group, ``phosphoric acid or its salt, boric acid or its salt, organic polycarboxylic acid or its salt'' are called the second group of additives.
本発明に用いられる第１群の添加剤であるケイ酸塩は、
アルカリ金属塩であって、市販の１号〜３号水ガラス、
ケイ酸カリウム、ケイ酸リチウム、ケイ酸マグネシウム
、粉末ケイ酸ナト類であり９粒＃に１０〜１００ｍμの
酸化ケイ素の水分散体である（市販品としてはたとえば
スもので、無定形の酸化アルミニウムのヒドロシルであ
る（市販品としてはたとえばアルミナゾルがある）。該
ケイ酸ヒドロシル、または含水酸化アルミニウムヒドロ
シルは通常１〜３０％濃度のものが使用され、過炭酸ソ
ーダに対し。The first group of additives used in the present invention, silicates, are:
Alkali metal salt, commercially available No. 1 to No. 3 water glass,
Potassium silicate, lithium silicate, magnesium silicate, powdered sodium silicate, and an aqueous dispersion of silicon oxide of 10 to 100 mμ in 9 grains (commercially available products include, for example, amorphous aluminum oxide). (Commercially available products include, for example, alumina sol).The hydrosyl silicate or hydrous aluminum oxide is usually used in a concentration of 1 to 30%, based on sodium percarbonate.
８ ｉ ０ 雪また。はム１．０ｓとして０．０１〜Ｏ
−５重量％の範囲で添加される。また上記のケイ酸塩の
うち、市販の１号〜３号水ガラスは１〜２５％濃度のも
のが使用され、その他のケイ酸カリウム、ケイ酸リチウ
ム、ケイ酸マグネシウム。8 i 0 Snow again. 0.01~O as Ham 1.0s
It is added in a range of -5% by weight. Among the above-mentioned silicates, commercially available No. 1 to No. 3 water glasses with a concentration of 1 to 25% are used, and others such as potassium silicate, lithium silicate, and magnesium silicate.
粉末状ケイ酸ナトリウムは１、〜２０％濃度のものが使
用され、過炭酸ソーダに対し５１０３として０．０１〜
０．５−量〒１．ｉ範囲で添加される。Powdered sodium silicate is used at a concentration of 1 to 20%, and 5103 to sodium percarbonate is 0.01 to 20%.
0.5-Amount〒1. Added in range i.
上記ケイ酸マグネシウムは０．１〜０．！１％がルミニ
ウムヒドロシルの添加量が、上記した量よりも多い場合
は溶解性が悪くなり好ましくなく９本発明の目的を十分
に達成し顕著な効果を発揮させるには８４０ｘまたはｋ
ｌｚｏｓとして０゜０１〜０．３重量％の範囲で添加す
ることが好適である。The above magnesium silicate is 0.1 to 0. ! If the amount of aluminum hydrosil added is greater than the above-mentioned amount, the solubility will deteriorate and this is not preferable.9 In order to fully achieve the purpose of the present invention and exhibit remarkable effects,
It is preferable to add lzos in an amount of 0.01 to 0.3% by weight.
本発明において、造粒時に添加される第１群の添加剤と
第２群の添加剤とは、造粒時に両者を同時に添加するこ
とが大切である。嬉１群の添加剤と第２群の添加剤とを
経時的に個別に添加した場合には溶解性が著しく損なわ
れ好ましくない、第１群添加剤ではケイ酸ヒト−ゾル。In the present invention, it is important that the first group of additives and the second group of additives are added at the same time during granulation. If the additives of Group 1 and the additives of Group 2 are added separately over time, the solubility will be significantly impaired, which is undesirable.The additive of Group 1 is silicate human sol.
含水酸化アルミニウムヒドロシル及びケイ酸塩のうち、
ケイ酸リチウム、１号〜３号水ガラスが特に好適である
。Among hydrous aluminum oxide hydrosyl and silicates,
Lithium silicate and No. 1 to No. 3 water glass are particularly suitable.
本発明において使用される第２群の添加剤であるリン酸
塩は、第一リン酸ソーダ、第ニリン酸ソーダ、第三リン
酸°′ソーダ、ピクリン酸ソーダ、メタリン酸ソーダ、
トリポリリン酸ソーダ。The phosphates that are the second group of additives used in the present invention include monobasic sodium phosphate, dibasic sodium phosphate, tribasic sodium phosphate, sodium picrate, sodium metaphosphate,
Sodium tripolyphosphate.
テトラポリリン酸ソーダ、ヘキサメタリン酸ソーダ、デ
カポリリン酸ソーダ、第一リン酸カリ。Sodium tetrapolyphosphate, sodium hexametaphosphate, sodium decapolyphosphate, monopotassium phosphate.
第ニリン酸カリ、第ミリン酸カリなどであり。Potassium diphosphate, potassium myphosphate, etc.
とくに第一、第二および第三のリン酸ソーダが好適であ
る。また、有機多価カルボン酸またはその塩は、クエン
酸、コハク酸、酒名酸、シュウ酸、クロト／酸、乳酸、
マロン酸、リンゴ酸が挙げられ、その塩はナト１しンム
塩が一般的である。これらの中、クエン酸、コハク酸、
酒名酸、乳酸が好ましく、＊にそのナトリウム塩が好適
である。これら本発明における第２群の添加剤は混線、
捏和中に第１群の添加剤のｐＨを調製し、第１群の添加
剤のゲル化を促進させる作用をする。Particularly preferred are primary, secondary and tertiary sodium phosphate. In addition, organic polycarboxylic acids or their salts include citric acid, succinic acid, alcoholic acid, oxalic acid, chloro/acid, lactic acid,
Examples include malonic acid and malic acid, and their salts are generally sodium salts. Among these, citric acid, succinic acid,
Alcoholic acid and lactic acid are preferred, and their sodium salts are preferred for *. These second group additives in the present invention include crosstalk,
During kneading, the pH of the first group of additives is adjusted, which acts to promote gelation of the first group of additives.
本発明において、上記第２群の添加剤としてのリン酸ま
たはその塩は通常、濃度５〜５０％のものが、また硼酸
またはその塩、有機多価カルボン酸またはその塩は通常
、濃度１〜１０％のものが使用され、第２群の添加剤の
作用を十分に発揮させるために通常、過炭酸ソーダに対
し０．０１〜０．５％（重量）の範囲で使用される。In the present invention, the concentration of phosphoric acid or its salt as the second group additive is usually 5 to 50%, and the concentration of boric acid or its salt, organic polyhydric carboxylic acid or its salt is usually 1 to 50%. 10% is used, and in order to fully exhibit the effect of the second group of additives, it is usually used in a range of 0.01 to 0.5% (by weight) based on the sodium percarbonate.
本発明において、過炭酸ソーダの造粒には湿式造粒法が
適用され、造粒に際して使用される造粒機は湿式法に用
いられるいかなる形式のものも使用し得るが、混線、捏
和か十分に行なわれる造粒機が好適である。造粒に際し
ては、過炭酸ソーダの含水率が１０〜１５％糧度となる
様に所望に応じ水を添加して混線、捏和される。In the present invention, a wet granulation method is applied to granulate sodium percarbonate, and any type of granulator used in the wet method can be used for granulation, but crosstalk and kneading may occur. A well-performing granulator is preferred. During granulation, water is added as desired to mix and knead so that the water content of the sodium percarbonate becomes 10 to 15%.
造粒に使用される造粒機の例としては、スクリュー押出
型の混線機の先端に孔径０．７〜１゜５ｍのスクリーン
を設置した型式のもの、あるいは出願人が先に出願した
押出型混練、捏和型の造粒機が使用される。Examples of granulators used for granulation include a screw extruder mixer with a screen with a hole diameter of 0.7 to 1.5 m installed at the tip, or an extruder that the applicant previously applied for. A kneading and kneading type granulator is used.
本発明により得られた製品は保存安定性にすぐれており
、かつ冷水に、対し良好な溶解性を有していると共に溶
解時に発泡性を有する。本発明により得られた顆粒状の
過炭酸ソーダは酸素系漂白剤として洗剤等に配合するこ
とができる。The product obtained according to the present invention has excellent storage stability, good solubility in cold water, and foaming property when dissolved. The granular sodium percarbonate obtained according to the present invention can be incorporated into detergents and the like as an oxygen bleaching agent.
本発明に使用される粉末状過炭酸ソーダは。The powdered soda percarbonate used in the present invention is:
炭酸ソーダ水溶液に過酸化水素を作用させて水婢液から
結晶を晶出する方法（晶出法）、不活性溶媒中でスラリ
ー状にして反応させる溶液法。A method in which hydrogen peroxide is applied to an aqueous solution of sodium carbonate to crystallize crystals from the aqueous liquid (crystallization method), and a solution method in which a slurry is formed in an inert solvent and reacted.
あるいは粉末状炭酸ソーダに過酸化水素水溶液を添加す
るドライ法などいずれの方法によって得られるものも使
用できるが、一般には晶出法によって得られた湿潤な過
炭酸ソーダが好適である。Alternatively, any method such as a dry method in which an aqueous hydrogen peroxide solution is added to powdered soda carbonate can be used, but wet sodium percarbonate obtained by a crystallization method is generally preferred.
参考例 （過炭酸ソーダの製造例）
攪拌機、温度計、冷却用の外套を備えたステンレス製の
反応機ＫＨ諺０１２％＊Ｎａ諺ＣＯ＠ １２％を含む
反応母液３０ｊを調製する。該母液を１５〜２０℃の温
度に保持しながら攪拌下に６０％Ｈ！０！−２，５時ｍ
Ｎａｇ ｃｏ ｓ ５ 、ＯＫ９を同時に約１時間
を要して徐々に添加し、添加後上記温度に保ちながｉさ
らに１時間攪拌した、得られたスラリーを棒心分離機に
より過炭酸ソーダ結晶とＰ液に盆離、シ、湿潤な過炭酸
ソーダ約３．５〜を得た。Reference Example (Production Example of Sodium Percarbonate) A reaction mother liquor 30j containing 12% of NaCO@12% is prepared using a stainless steel reactor equipped with a stirrer, a thermometer, and a cooling jacket. While maintaining the mother liquor at a temperature of 15-20°C, 60% H! 0! -2.5 o'clock m
Nag cos 5 and OK9 were simultaneously added gradually over about 1 hour, and after the addition, the slurry was stirred for another 1 hour while maintaining the above temperature. The resulting slurry was separated into sodium percarbonate crystals using a rod separator. Approximately 3.5~ of wet sodium percarbonate was obtained by removing the P solution.
次に本発明の実施例を示す。Next, examples of the present invention will be shown.
実施例
参考例の方法で得たｆｊ１潤な過炭酸ソーダ粉体をニー
ダ−に供給し、これに表に示す本発明における第１群の
添加剤及び第２群の添加剤を所望の濃度でそれぞれ所定
量添加し、さらに含水率が１０〜１５％になる様に所望
量の水を添加し、約３０分間混練した。次いで混練した
湿潤塊はペレタイザーにより造粒し、蚊遣粒物を流動乾
燥器により乾燥し製品を得た。この製品につき溶解速度
を測定した。The fj1 moist soda percarbonate powder obtained by the method of the reference example is fed to a kneader, and the additives of the first group and the second group of the present invention shown in the table are added to the powder at desired concentrations. A predetermined amount of each was added, and further a desired amount of water was added so that the water content became 10 to 15%, and kneaded for about 30 minutes. Next, the kneaded wet mass was granulated using a pelletizer, and the mosquito pellets were dried using a fluidized fluidized drier to obtain a product. The dissolution rate was measured for this product.
溶解速度の一定は、１ｇのビーカーに２５℃の純水１１
を入れ、高さ４０ｕ、巾２５１ｍの攪拌羽根を有する撹
拌棒を２５ Ｏｒｐｍで回し、５ｙの試料を投入し粒子
が完全に消失した時間を一定して行なった。To maintain a constant dissolution rate, add 1 g of pure water at 25°C to a beaker.
A stirring bar with a stirring blade having a height of 40 u and a width of 251 m was rotated at 25 Orpm, a 5 y sample was added, and the time period for the particles to completely disappear was determined.
才た。得られた製品ｓａｙを１００１１１のビーカーに
入れ−゛門門状状態３５℃、８０％几Ｈの条件下３０日
間放置し、試験前後の有効酸素量を求め１次式に従って
有効酸素低下率を求め、保存安定性を測定した◎
この結果、有効酸素低下率は１０〜５０％であった。Talented. The obtained product say was placed in a beaker of 100111 and left for 30 days under the conditions of 35°C and 80% H, the amount of effective oxygen before and after the test was determined, and the rate of decrease in effective oxygen was determined according to the linear equation. The storage stability was measured. As a result, the effective oxygen reduction rate was 10 to 50%.
Claims (1)
は含水酸化アルミニウムヒドロゾ゛ ルから選ばれ
た少なくとも一種と、 ＩＩポン酸たはその塩、オルト
またはメタ硼酸またはその塩、及び有機多価カル“ポン
酸またはその塩から選ばれた少なくとも一種′さを添加
り造粒することを特徴とする過炭酸ソーダの製法１１
ケイ酸塩は１乃至３号水ガラス、ケイ酸カリウム、ケ
イ酸リチウム、粉末ケイ酸ナトリウム、ケイ酸マグネシ
ウムから選ばれる特許請求の範囲第１項記載の方法 （３） 有機多価カルボン酸はクエン酸、コハク酸。 酒石酸、シュウ酸、ククトン酸、乳酸、マロ′ ン酸、
！１ンゴ酸から選ばれる′特許請求の範囲第１項記載の
方法 ＋４１ ケイ酸ヒドロシルもしくはケイ酸塩または含
水酸化アルミニウムヒドロシルを過炭酸ソーダに対して
、ＢｉａｓまたはＡｊｇＯｓとして０．０１〜０．５％
（重量）添加する特許請求の範囲第１項記載の方法 暢）、リン酸またはその塩、硼酸またはその塩及び有機
多価カルボン酸またはその塩を、過炭酸ソーダに対し０
．０１〜０．５％（重量）添加する特許請求の範囲第１
項記載の方法[Claims] (1) When granulating powdered soda percarbonate. Sodium percarbonate, at least one selected from hydrosyl silicate or silicate, or hydrous aluminum oxide hydrosol, II boric acid or its salt, ortho- or metaboric acid or its salt, and an organic polyhydric carbonate. Method 11 for producing soda percarbonate, characterized by adding at least one type of acid selected from acids or salts thereof and granulating them.
The method (3) according to claim 1, wherein the silicate is selected from No. 1 to No. 3 water glass, potassium silicate, lithium silicate, powdered sodium silicate, and magnesium silicate. The organic polycarboxylic acid is citric acid. Acid, succinic acid. tartaric acid, oxalic acid, cuctonic acid, lactic acid, malonic acid,
! 1. Process according to Claim 1+41 Hydrosyl silicate or silicate or hydrous aluminum oxide is added to sodium percarbonate as Bias or AjgOs of 0.01 to 0.5. %
(weight) Adding phosphoric acid or its salt, boric acid or its salt, and organic polyhydric carboxylic acid or its salt to sodium percarbonate
．． Claim 1 to add 01 to 0.5% (by weight)
Method described in section
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17031181A JPS5874508A (en) | 1981-10-24 | 1981-10-24 | Manufacture of sodium percarbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17031181A JPS5874508A (en) | 1981-10-24 | 1981-10-24 | Manufacture of sodium percarbonate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5874508A true JPS5874508A (en) | 1983-05-06 |
| JPH0139962B2 JPH0139962B2 (en) | 1989-08-24 |
Family
ID=15902613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17031181A Granted JPS5874508A (en) | 1981-10-24 | 1981-10-24 | Manufacture of sodium percarbonate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5874508A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0279282A2 (en) * | 1987-02-19 | 1988-08-24 | INTEROX Société Anonyme | Particles of stabilized peroxygen compounds, process for their preparation and compositions containing them |
| WO1994014701A1 (en) * | 1992-12-23 | 1994-07-07 | Solvay Interox Limited | Process for stabilising alkali percarbonate particles, particles obtained thereby and washing and/or bleaching compositions containing them |
| WO1994014702A1 (en) * | 1992-12-23 | 1994-07-07 | Solvay Interox Limited | Method for stabilising alkali percarbonate particles, particles obtained thereby and washing and/or bleaching compositions containing them |
| EP0634482A1 (en) * | 1993-07-14 | 1995-01-18 | The Procter & Gamble Company | Stabilized detergent compositions |
| EP0745664A1 (en) * | 1994-02-25 | 1996-12-04 | Eka Chemicals AB | Bleaching agent |
| US5827811A (en) * | 1994-10-07 | 1998-10-27 | Eka Chemicals Ab | Bleaching agent |
| US5902783A (en) * | 1994-02-25 | 1999-05-11 | Eka Chemicals Ab | Bleaching agent |
| JP2006131455A (en) * | 2004-11-05 | 2006-05-25 | Mitsubishi Gas Chem Co Inc | Sodium percarbonate particle excellent in foaming and solubility |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4969581A (en) * | 1972-08-31 | 1974-07-05 | ||
| US4179394A (en) * | 1977-01-11 | 1979-12-18 | Peroxid-Chemie Gmbh | Process for improving the storage stability of alkali persalts |
-
1981
- 1981-10-24 JP JP17031181A patent/JPS5874508A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4969581A (en) * | 1972-08-31 | 1974-07-05 | ||
| US4179394A (en) * | 1977-01-11 | 1979-12-18 | Peroxid-Chemie Gmbh | Process for improving the storage stability of alkali persalts |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0279282A2 (en) * | 1987-02-19 | 1988-08-24 | INTEROX Société Anonyme | Particles of stabilized peroxygen compounds, process for their preparation and compositions containing them |
| BE1000328A5 (en) * | 1987-02-19 | 1988-10-25 | Interox Sa | PARTICLE STABILIZED peroxygen compounds, METHOD OF MAKING, AND COMPOSITION CONTAINING. |
| US4861506A (en) * | 1987-02-19 | 1989-08-29 | Interox (Societe Anonyme) | Stabilized particles of peroxygen compounds, process for their manufacture, and compositions containing them |
| WO1994014701A1 (en) * | 1992-12-23 | 1994-07-07 | Solvay Interox Limited | Process for stabilising alkali percarbonate particles, particles obtained thereby and washing and/or bleaching compositions containing them |
| WO1994014702A1 (en) * | 1992-12-23 | 1994-07-07 | Solvay Interox Limited | Method for stabilising alkali percarbonate particles, particles obtained thereby and washing and/or bleaching compositions containing them |
| EP0634482A1 (en) * | 1993-07-14 | 1995-01-18 | The Procter & Gamble Company | Stabilized detergent compositions |
| EP0745664A1 (en) * | 1994-02-25 | 1996-12-04 | Eka Chemicals AB | Bleaching agent |
| EP0745664B1 (en) * | 1994-02-25 | 1998-05-13 | Eka Chemicals AB | Bleaching agent |
| US5846922A (en) * | 1994-02-25 | 1998-12-08 | Eka Chemicals Ab | Bleaching agent |
| US5902783A (en) * | 1994-02-25 | 1999-05-11 | Eka Chemicals Ab | Bleaching agent |
| US5827811A (en) * | 1994-10-07 | 1998-10-27 | Eka Chemicals Ab | Bleaching agent |
| JP2006131455A (en) * | 2004-11-05 | 2006-05-25 | Mitsubishi Gas Chem Co Inc | Sodium percarbonate particle excellent in foaming and solubility |
| JP4506962B2 (en) * | 2004-11-05 | 2010-07-21 | 三菱瓦斯化学株式会社 | Sodium percarbonate particles with excellent foam solubility |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0139962B2 (en) | 1989-08-24 |
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