JP2621094B2 - High concentration α-olefin sulfonate aqueous composition - Google Patents
High concentration α-olefin sulfonate aqueous compositionInfo
- Publication number
- JP2621094B2 JP2621094B2 JP1265526A JP26552689A JP2621094B2 JP 2621094 B2 JP2621094 B2 JP 2621094B2 JP 1265526 A JP1265526 A JP 1265526A JP 26552689 A JP26552689 A JP 26552689A JP 2621094 B2 JP2621094 B2 JP 2621094B2
- Authority
- JP
- Japan
- Prior art keywords
- olefin sulfonate
- olefin
- aqueous composition
- concentration
- high concentration
- 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 - Lifetime
Links
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- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Detergent Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、高洗浄力を有するα−オレフィンスルホン
酸塩を高濃度に含有し、かつ流動性の良好な水性組成物
に関する。Description: TECHNICAL FIELD The present invention relates to an aqueous composition containing α-olefin sulfonate having a high detergency at a high concentration and having good flowability.
従来の技術 界面活性剤として知られているα−オレフィンスルホ
ン酸塩は、α−オレフィンをスルホン化し、中和−加水
分解することにより水性スラリーとして製造されてい
る。得られる水性スラリーを高濃度化することは、貯蔵
や輸送コストの低減をもたらし、また、衣料用粉末洗剤
を製造する場合のように最終的に水分を蒸発させるとき
は省エネルギー化が図られることから重要である。BACKGROUND OF THE INVENTION Alpha-olefin sulfonates, known as surfactants, are produced as aqueous slurries by sulfonating and neutralizing-hydrolyzing alpha-olefins. Increasing the concentration of the obtained aqueous slurry results in reduction in storage and transportation costs, and also energy saving when finally evaporating water as in the case of manufacturing powder detergent for clothing. is important.
しかしながら、α−オレフィンスルホン酸塩水性スラ
リーを高濃度化すると粘度の上昇を招き、ポンプ移送等
のハンドリングが困難になるという問題があった。However, when the concentration of the α-olefin sulfonate aqueous slurry is increased, the viscosity is increased, and there is a problem that handling such as pumping becomes difficult.
粘度の上昇を防止してスラリーを高濃度化する方法と
して、以下のように低粘度化剤を添加する方法が知られ
ている。As a method of preventing a rise in viscosity and increasing the concentration of a slurry, a method of adding a low-viscosity agent as described below is known.
特開昭52−78828号公報：過剰のアルカリ剤とアル
キレンオキシド誘導体とを添加し、濃度50％程度のスラ
リーとする。JP-A-52-78828: An excess of an alkali agent and an alkylene oxide derivative are added to form a slurry having a concentration of about 50%.
特開昭58−157758号公報：ポリエチレングリコール
またはポリオキシエチレンアルキルエーテルと芳香族カ
ルボン酸とを添加して中和・加水分解し、濃度60％以上
の高濃度スラリーとする。JP-A-58-157758: Addition of polyethylene glycol or polyoxyethylene alkyl ether and aromatic carboxylic acid to neutralize and hydrolyze to obtain a high-concentration slurry having a concentration of 60% or more.
しかしながら、上記の方法は添加剤が必要であること
からコストアップとなり、用途によっては添加剤が不純
物となることがあり、また、スラリーの高濃度化にも限
界があった。However, the above method requires an additive, which increases the cost, and depending on the application, the additive may become an impurity, and there is a limit to increasing the concentration of the slurry.
粘度低下剤の使用を必要とすることなく、オレフィン
スルホン化物の中和・加水分解条件を制御することによ
り高濃度化を図る技術としては、以下の方法が知られて
いる。The following method is known as a technique for increasing the concentration by controlling the conditions for neutralizing and hydrolyzing the olefin sulfonate without using a viscosity reducing agent.
特開昭58−167558号公報：オレフィンのスルホン化
物を塩基で連続中和するに当たり、塩基／オレフィンス
ルホン化物＝0.3〜0.7（重量比）となるように中和をス
タートし、部分中和を経由させる方法。JP-A-58-167558: In continuous neutralization of a sulfonated product of an olefin with a base, neutralization is started so that base / olefin sulfonated product becomes 0.3 to 0.7 (weight ratio) and via partial neutralization How to let.
特開昭61−60644号公報：アルカリによる中和物の
一部を循環ループにより再び混合器内に循環させる中和
方法において、スタート時にオレフィンスルホン酸塩
（AI）が40〜60％、未中和のオレフィンスルホン酸が対
AIで２〜10％となるように中和を行ない、このスラリー
がループを一循後、AI65％以上となるように中和を行な
う。JP-A-61-60644: In a neutralization method in which a part of a neutralized product with an alkali is circulated again through a circulation loop into a mixer, olefin sulfonate (AI) is 40 to 60% at the start, and The sum of olefin sulfonic acids is paired
Neutralization is performed so as to be 2 to 10% with AI, and this slurry is circulated through a loop, and then neutralized so that AI is 65% or more.
特開昭60−142951号公報：サルトン量がオレフィン
スルホン酸塩に対して0.5〜４％となるように先ず100〜
140℃で中和・加水分解し、その後生成スラリーを150〜
200℃で加水分解する。JP 60-142951 A: First, 100 to 100% so that the amount of sultone is 0.5 to 4% based on the olefin sulfonate.
Neutralize and hydrolyze at 140 ° C.
Hydrolyze at 200 ° C.
しかしながら、上記〜の方法では、得られるα−
オレフィンスルホン酸塩スラリー濃度を200〜300ポイズ
とすることが可能であり、流動性はあるものの、使用す
る装置や条件によって取り扱いにくい場合もあり、より
いっそうの低粘度化が望まれていた。However, in the above methods (1) to (3), the obtained α-
The olefin sulfonate slurry concentration can be 200 to 300 poise, and although it has fluidity, it may be difficult to handle depending on the equipment and conditions used, and further lowering the viscosity has been desired.
発明が解決しようとする課題 本発明は、α−オレフィンスルホン酸塩水性組成物の
流動性を改善することを目的とする。Problem to be Solved by the Invention An object of the present invention is to improve the fluidity of an aqueous α-olefin sulfonate composition.
発明の構成 本発明のα−オレフィンスルホン酸塩水性組成物は、
以下の〜を満たすことを特徴とする。Configuration of the InventionThe aqueous α-olefin sulfonate composition of the present invention comprises
The following is satisfied.
α−オレフィンスルホン酸塩を65〜75重量％含むこ
と。Contains 65 to 75% by weight of α-olefin sulfonate.
α−オレフィンスルホン酸塩のうち、（ａ）ジスル
ホン酸塩と（ｂ）モノスルホン酸塩との比率が、（ａ）
／（ｂ）＝０〜10/100〜90（重量比）の範囲にあるこ
と。Among the α-olefin sulfonates, the ratio of (a) disulfonic acid salt to (b) monosulfonic acid salt is (a)
/ (B) = 0 to 10/100 to 90 (weight ratio).
α−オレフィンスルホン酸塩の炭素数がC14/C
16〜18＝20〜50/50〜80（重量比）の範囲にあること。The carbon number of the α-olefin sulfonate is C 14 / C
16-18 = 20-50 / 50-80 (weight ratio).
以下、本発明についてさらに詳細に説明する。 Hereinafter, the present invention will be described in more detail.
α−オレフィンスルホン酸塩は、α−オレフィンをSO
3等のスルホン化剤でスルホン化し、これを中和・加水
分解することにより製造されており、アルケンスルホン
酸塩、ヒドロキシアルケンスルホン酸塩、ヒドロキシア
ルカンスルホン酸塩の混合物であり、スルホン酸基が１
つ導入されたモノスルホン酸塩の他に、２つの導入され
たジスルホン酸塩がある。α-olefin sulfonate converts α-olefin into SO
It is produced by sulfonating with a sulfonating agent such as 3 and neutralizing and hydrolyzing it, and is a mixture of alkene sulfonate, hydroxyalkene sulfonate, and hydroxyalkane sulfonate. 1
In addition to the monosulfonate that was introduced, there are two disulfonates that were introduced.
本発明では、α−オレフィンスルホン酸塩の炭素数、
言い換えれば原料オレフィンの炭素数、さらに言い換え
ればスルホン酸塩基が結合するアルケニル基、ヒドロキ
シアルケニル基および／またはヒドロキシアルキル基の
炭素数を、重量比でC14/C16〜18＝20〜50/50〜80、好ま
しくは30〜40/60〜70の範囲とする。C14−α−オレフィ
ンスルホン酸塩の量が上記範囲未満では水性組成物の粘
度が上昇し、一方、上記範囲を超えると洗浄剤として必
要な洗浄力の面で劣る。In the present invention, the carbon number of the α-olefin sulfonate,
The number of carbon atoms of the feed olefin other words, further in other words an alkenyl group having a sulfonate group attached to carbon atoms of hydroxy alkenyl groups and / or hydroxyalkyl groups, C in a weight ratio 14 / C 16~18 = 20~50 / 50 To 80, preferably 30 to 40/60 to 70. If the amount of the C 14 -α-olefin sulfonate is less than the above range, the viscosity of the aqueous composition increases, while if it exceeds the above range, the detergency required as a detergent is poor.
また、α−オレフィンスルホン酸塩中の（ａ）ジスル
ホン酸塩と（ｂ）モノスルホン酸塩とは、重量比で
（ａ）／（ｂ）＝０〜10/100〜90、好ましくは０〜50/1
00〜95の範囲とする。ジスルホン酸塩量が10重量％を超
えると粘度が上昇する。Further, (a) disulfonate and (b) monosulfonate in the α-olefin sulfonate are (a) / (b) = 0 to 10/100 to 90, preferably 0 to 90 by weight ratio. 50/1
The range is from 00 to 95. When the amount of the disulfonate exceeds 10% by weight, the viscosity increases.
さらに本発明では、水性組成物中のα−オレフィンス
ルホン酸塩濃度を65〜75重量％とする。α−オレフィン
スルホン酸塩濃度がこの範囲以外では、上記の条件を満
たしても水性組成物の低粘度化（例えば、100ポイズ以
下）を実現することができない。Further, in the present invention, the concentration of the α-olefin sulfonate in the aqueous composition is set to 65 to 75% by weight. If the concentration of the α-olefin sulfonate is out of this range, it is not possible to achieve a low viscosity (for example, 100 poises or less) of the aqueous composition even if the above conditions are satisfied.
α−オレフィンスルホン酸塩は、KOH,NaOHなどで中和
して水溶性塩とされるが、特にカリウム塩とすることが
好ましい。The α-olefin sulfonate is neutralized with KOH, NaOH or the like to be a water-soluble salt, and is particularly preferably a potassium salt.
本発明の水性組成物中においては、スルホン化時の未
反応オレフィン、中和時の遊離アルカリ分、無機硫酸
塩、あるいはpH緩衝剤等は実質的に悪影響を及ぼさない
が、これらは３重量％以下、さらに好ましくは２重量％
以下とすることが望ましい。In the aqueous composition of the present invention, unreacted olefin at the time of sulfonation, free alkali at the time of neutralization, inorganic sulfate, pH buffer and the like have substantially no adverse effect. Below, more preferably 2% by weight
It is desirable to make the following.
発明の効果 本発明の水性組成物によれば、α−オレフィンスルホ
ン酸塩濃度を65〜75重量％の範囲とし、かつ、炭素数分
布およびジスルホン酸塩量を制御することにより、粘度
を低下して流動性を改善することができる。Effects of the Invention According to the aqueous composition of the present invention, the viscosity is reduced by controlling the α-olefin sulfonate concentration in the range of 65 to 75% by weight and controlling the carbon number distribution and the amount of disulfonate. To improve the flowability.
実 施 例 １−テトラデセン、１−ヘキサデセン、１−オクタデ
センを各々薄膜式スルホン化装置を用い、希釈SO3によ
り対オレフィンSO3モル比0.5,1.05,3.0の各々の条件で
スルホン化し、α−オレフィンスルホン化反応混合物を
得た。これらを各々、5wt％KOH水溶液で中和し、次に16
5℃で25分間加水分解した。こうして得た種々のα−オ
レフィンスルホン酸カリウム塩スラリーについて、ヘキ
サン抽出により未反応オレフィン分を除去し、またエタ
ノール不溶分として無機硫酸塩の除去を行ない、その後
水その他の溶媒を減圧乾燥により除去し、炭素数および
ジスルホン酸塩含量の異なる６種類の粉末固体状α−オ
レフィンスルホン酸カリウム塩（AOS・Ｋ）を得た。Implementation example 1-tetradecene, 1-hexadecene, 1-octadecene each using a thin film type sulfonation apparatus, and sulfonated with each condition of to olefin SO 3 molar ratio 0.5,1.05,3.0 by dilution SO 3, alpha-olefin A sulfonation reaction mixture was obtained. Each of them is neutralized with 5 wt% KOH aqueous solution, and then
Hydrolyzed at 5 ° C for 25 minutes. Unreacted olefin components are removed from the various α-olefin sulfonate potassium salt slurries thus obtained by hexane extraction, and inorganic sulfates are removed as ethanol-insoluble components. Thereafter, water and other solvents are removed by drying under reduced pressure. , Six kinds of powdered solid α-olefinsulfonic acid potassium salts (AOS · K) having different carbon numbers and disulfonic acid salt contents were obtained.
これらのAOS・Ｋと水により表−１に示すような組成
物を調製して粘度を測定し、結果を表−１に示した。Compositions as shown in Table 1 were prepared from these AOS · K and water, and the viscosity was measured. The results are shown in Table 1.
Claims (1)
％含有し、その（ａ）ジスルホン酸塩と（ｂ）モノスル
ホン酸塩との比率が重量比で（ａ）／（ｂ）＝０〜10/1
00〜90の範囲にあり、かつ、該α−オレフィンスルホン
酸塩の炭素数が重量比でC14/C16〜18＝20〜50/50〜80の
範囲にあることを特徴とする高濃度α−オレフィンスル
ホン酸塩水性組成物。1. An α-olefin sulfonate containing 65 to 75% by weight, wherein the ratio of (a) a disulfonic acid salt to (b) a monosulfonic acid salt is expressed by a weight ratio of (a) / (b) = 0-10 / 1
High concentration, wherein the carbon number of the α-olefin sulfonate is in the range of C 14 / C 16-18 = 20-50 / 50-80 by weight. α-olefin sulfonate aqueous composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1265526A JP2621094B2 (en) | 1989-10-11 | 1989-10-11 | High concentration α-olefin sulfonate aqueous composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1265526A JP2621094B2 (en) | 1989-10-11 | 1989-10-11 | High concentration α-olefin sulfonate aqueous composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03126792A JPH03126792A (en) | 1991-05-29 |
| JP2621094B2 true JP2621094B2 (en) | 1997-06-18 |
Family
ID=17418360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1265526A Expired - Lifetime JP2621094B2 (en) | 1989-10-11 | 1989-10-11 | High concentration α-olefin sulfonate aqueous composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2621094B2 (en) |
-
1989
- 1989-10-11 JP JP1265526A patent/JP2621094B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03126792A (en) | 1991-05-29 |
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