JP2004137291A - Oil solidifying agent - Google Patents

Oil solidifying agent Download PDF

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Publication number
JP2004137291A
JP2004137291A JP2002259654A JP2002259654A JP2004137291A JP 2004137291 A JP2004137291 A JP 2004137291A JP 2002259654 A JP2002259654 A JP 2002259654A JP 2002259654 A JP2002259654 A JP 2002259654A JP 2004137291 A JP2004137291 A JP 2004137291A
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Prior art keywords
oil
solidifying agent
oil solidifying
hardness
weight
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JP2002259654A
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Japanese (ja)
Inventor
Shoichi Emori
江森 章一
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SEIKEN KAGAKU KK
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SEIKEN KAGAKU KK
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Priority to JP2002259654A priority Critical patent/JP2004137291A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil solidifying agent which can solidify an oil at ordinary temperature. <P>SOLUTION: The oil solidifying agent comprises 30-70wt% of 12-hydroxystearic acid, 3-10wt% of benzylidene sorbitol, and 30-70wt% of N-methylpyrrolidone and/or dimethyl sulfoxide. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、天ぷら油等の廃油を常温において固形化するための油固化剤に関する。
【0002】
【従来の技術】
従来、油を固形化するための固化剤として、12ヒドロキシステアリン酸、ステアリン酸石鹸、アミノ酸系ゲル化剤、ポリスチレンポリオレフィンブロック重合体、ベンジリデンソルビトール等が用いられているが、これらは全て使用に当たり油に加熱溶解させなければならない。現在、天ぷら油等の廃油の固化には12ヒドロキシステアリン酸が用いられているが、その固化には油を80℃以上に加温し、それに12ヒドロキシステアリン酸を加えて溶解した後、冷却固化させている。
しかし、廃油を加熱する段階で、しばしば火災を発生していることが報じられており、常温において油を固形化できる固化剤の開発が要求されている。
【0003】
【発明が解決しようとする課題】
本発明は、前記の実情に鑑み、常温において油を固形化できる油固化剤を提供することを目的とするものである。
【0004】
【課題を解決するための手段】
本発明者は、前記の課題を解決するため鋭意研究を重ねた結果、12ヒドロキシステアリン酸およびベンジリデンソルビトールを、N−メチルピロリドンおよび/またはジメチルスルフォキサイドに溶解したものを用いることにより、少量の使用量で常温において油を固化できることを見出し、本発明を完成するに至った。
すなわち、本発明は、12ヒドロキシステアリン酸30〜70重量%、ベンジリデンソルビトール3〜10重量%と、溶剤としてN−メチルピロリドンおよび/またはジメチルスルフォキサイド30〜70重量%からなることを特徴とする油固化剤である。
【0005】
12ヒドロキシステアリン酸のN−メチルピロリドンおよび/またはジメチルスルフォキサイドに対する濃度は、30〜70重量%が好適である。この濃度が30重量%未満では、固化剤の使用量を多くしなければならず、かつ、N−メチルピロリドンおよび/またはジメチルスルフォキサイドの添加量が増えるため、固化した油の硬さが低下する。また、70重量%を超えると、固化剤は常温において固体となり、使用時に加温融解しなければならない。12ヒドロキシステアリン酸の濃度は、30〜70重量%が最も実用的で好適である。
ベンジリデンソルビトールの量は、N−メチルピロリドンおよび/またはジメチルスルフォキサイドの3〜15重量%が望ましい。この量を超える添加は、固化剤の保存中に固化剤自体の固化を来すので好ましくない。また、3重量%未満になると、充分な効果を得ることができない。
【0006】
ジメチルスルフォキサイドは吸湿性があるので、吸湿性を低下させるためN−メチルピロリドンとの混合使用は有用である。また、N−メチルピロリドンとジメチルスルフォキサイドの併用は、12ヒドロキシステアリン酸の溶解度を若干低下させるが、固化油の硬度を高くする効果があるので、固化剤の融点を何度にするかによって、また、固化剤の油に対する添加量を何%にするかによって、N−メチルピロリドン、ジメチルスルフォキサイドを単独使用か併用するか適宜に決めることができる。
【0007】
【発明の実施の形態】
以下に、本発明の実施例と比較例を挙げると共に、得られる油個化剤について試験した結果を示す。
【0008】
【実施例1、比較例1〜2】
表1に示す油固化剤組成により油固化剤とした。
【表1】

Figure 2004137291
【0009】
▲1▼ 試験方法
温度20℃の各種油に、上記実施例1および比較例1〜2の油固化剤を加え、攪拌混合して30分後の硬さを調べる。
▲2▼ 硬さの表示
ゆるいシャーベット状      1
固形を保たない         2
固形を保つが容易に崩れる    3
固形を保つ           4
少々の力を加えても固形を保つ  5
上記の試験結果を表2〜4に示す。
【0010】
【表2】
Figure 2004137291
【0011】
【表3】
Figure 2004137291
【0012】
【表4】
Figure 2004137291
以上の試験により、12ヒドロキシステアリン酸、ベンジリデンソルビトール各々単独では、添加量を増やしても充分な硬さが得られないことが分かる。
【0013】
【実施例2、比較例3〜4】
表5に示す油固化剤組成により油固化剤とした。
【表5】
Figure 2004137291
【0014】
▲1▼ 試験方法
温度20℃の各種油に、上記実施例2および比較例3〜4の油固化剤を加え、攪拌混合して30分後の硬さを調べる。
▲2▼ 硬さの表示
実施例1および比較例1〜2の場合と同じである。
上記の試験結果を表6〜8に示す。
【0015】
【表6】
Figure 2004137291
【0016】
【表7】
Figure 2004137291
【0017】
【表8】
Figure 2004137291
【0018】
【実施例3〜5、比較例5】
表9に示す油固化剤組成により油固化剤とした。
【表9】
Figure 2004137291
【0019】
▲1▼ 試験方法
温度20℃の各種油に、上記実施例3〜5および比較例5の油固化剤を加え、攪拌混合して30分後の硬さを調べる。各油固化剤の添加量は、油固化剤中に含まれる2ヒドロキシステアリン酸の量が油に対して4重量%になる量とした。
▲2▼ 硬さの表示
前記実施例1および比較例1〜2の場合と同じである。
上記の試験結果を表10に示す。
【0020】
【表10】
Figure 2004137291
上記の試験により、N−メチルピロリドンの固化剤中の比率は、70%未満が良いことが分かる。
【0021】
【実施例6〜8、比較例6】
表11に示す油固化剤組成により油固化剤とした。
【表11】
Figure 2004137291
【0022】
▲1▼ 試験方法
温度20℃の各種油に、上記実施例6〜8および比較例6の油固化剤を加え、攪拌混合して30分後の硬さを調べる。各油固化剤の添加量は、油固化剤中に含まれる2ヒドロキシステアリン酸の量が油に対して4重量%になる量とした。
▲2▼ 硬さの表示
前記実施例1および比較例1〜2の場合と同じである。
上記の結果を表12に示す。
【0023】
【表12】
Figure 2004137291
上記の試験により、ジメチルスルフォキサイドの固化剤中の比率は70%未満が良いことが分かる。
【0024】
【実施例9〜14】
表13に示す油固化剤組成により油固化剤とした。
【表13】
Figure 2004137291
【0025】
上記実施例9〜14の油固化剤を用い、前記の実施例3〜5および比較例5の場合と同じ試験方法により試験した結果は、菜種油、大豆油、ゴマ油とも充分な硬さが得られた。融点の件に関しては、実際に融かす場合、融点より10〜20℃高い温度で行う場合が多く、火傷等の危険性や、また、気温の低い季節には、融かしたものが直ぐに固まってしまう等の不便があり、融点が50℃以下が使い易い。
【0026】
【実施例15〜19】
表14に示す油固化剤組成により油固化剤とした。
【表14】
Figure 2004137291
【0027】
上記実施例15〜19の油固化剤を用い、前記実施例6〜8および比較例6の場合と同じ試験方法により試験した結果は、菜種油、大豆油、ゴマ油とも充分な硬さが得られた。融点の件に関しては、前記実施例5〜10において記載のように、実際に融かす場合、融点より10〜20℃高い温度で行う場合が多く、火傷等の危険性や、また、気温の低い季節には、融かしたものが直ぐに固まってしまう等の不便があり、融点が50℃以下が使い易い。
【0028】
【実施例20〜21】
表15に示す油固化剤組成により油固化剤とした。
【表15】
Figure 2004137291
【0029】
▲1▼ 試験方法
温度20℃の各種油200gに、上記実施例20〜21の油固化剤12gを加え、攪拌混合して30分後の硬さを調べる。
▲2▼ 硬さの表示
前記実施例1および比較例1〜2の場合と同じである。ただし、「+」を付したものは、さらに硬いことを示す。
表16に示す試験結果から、N−メチルピロリドンとジメチルスルフォキサイドを併用した方が硬さが増すことが分かる。
【表16】
Figure 2004137291
【0030】
【発明の効果】
本発明の油固化剤は、前記試験結果から明らかなように、常温で簡単に油を固形化することができ、再加熱時にしばしば発生する火災を防止できる。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an oil solidifying agent for solidifying waste oil such as tempura oil at room temperature.
[0002]
[Prior art]
Conventionally, as a solidifying agent for solidifying oil, 12-hydroxystearic acid, stearic acid soap, amino acid-based gelling agent, polystyrene polyolefin block polymer, benzylidene sorbitol, and the like have been used. Must be dissolved by heating. At present, 12-hydroxystearic acid is used to solidify waste oil such as tempura oil. For the solidification, the oil is heated to 80 ° C. or higher, and 12-hydroxystearic acid is added and dissolved, and then cooled and solidified. Let me.
However, it has been reported that a fire often occurs at the stage of heating the waste oil, and the development of a solidifying agent that can solidify the oil at room temperature is required.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and has as its object to provide an oil solidifying agent that can solidify an oil at room temperature.
[0004]
[Means for Solving the Problems]
The present inventor has conducted intensive studies to solve the above-mentioned problems. As a result, it was found that 12-hydroxystearic acid and benzylidene sorbitol were dissolved in N-methylpyrrolidone and / or dimethylsulfoxide to reduce a small amount. It has been found that oil can be solidified at room temperature with the use amount of, and the present invention has been completed.
That is, the present invention is characterized by comprising 30 to 70% by weight of 12-hydroxystearic acid, 3 to 10% by weight of benzylidene sorbitol, and 30 to 70% by weight of N-methylpyrrolidone and / or dimethyl sulfoxide as a solvent. Oil solidifying agent.
[0005]
The concentration of 12-hydroxystearic acid with respect to N-methylpyrrolidone and / or dimethylsulfoxide is preferably 30 to 70% by weight. If the concentration is less than 30% by weight, the amount of the solidifying agent must be increased and the amount of N-methylpyrrolidone and / or dimethyl sulfoxide added increases, so that the hardness of the solidified oil is reduced. descend. If it exceeds 70% by weight, the solidifying agent becomes a solid at room temperature and must be heated and melted at the time of use. A concentration of 12-hydroxystearic acid of 30 to 70% by weight is most practical and preferable.
The amount of benzylidene sorbitol is desirably 3 to 15% by weight of N-methylpyrrolidone and / or dimethyl sulfoxide. Addition exceeding this amount is not preferable because the solidifying agent itself is solidified during storage of the solidifying agent. If the content is less than 3% by weight, a sufficient effect cannot be obtained.
[0006]
Since dimethyl sulfoxide has a hygroscopic property, it is useful to use it in combination with N-methylpyrrolidone to reduce the hygroscopic property. The combined use of N-methylpyrrolidone and dimethyl sulfoxide slightly reduces the solubility of 12-hydroxystearic acid, but has the effect of increasing the hardness of the solidified oil. It is possible to appropriately determine whether N-methylpyrrolidone or dimethyl sulfoxide is used alone or in combination depending on the amount of the solidifying agent and the amount of the solidifying agent added to the oil.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
In the following, examples of the present invention and comparative examples are listed, and the results of tests on the obtained oil-solidifying agents are shown.
[0008]
Example 1, Comparative Examples 1-2
An oil solidifying agent was prepared according to the oil solidifying agent composition shown in Table 1.
[Table 1]
Figure 2004137291
[0009]
{Circle around (1)} Test method To the various oils at a temperature of 20 ° C., the oil solidifying agents of Example 1 and Comparative Examples 1 and 2 are added, mixed with stirring, and the hardness is examined after 30 minutes.
(2) Indication of hardness Loose sherbet 1
Do not keep solid 2
Keeps solid but easily collapses 3
Keep solid 4
Keep solid even with a little force 5
The above test results are shown in Tables 2 to 4.
[0010]
[Table 2]
Figure 2004137291
[0011]
[Table 3]
Figure 2004137291
[0012]
[Table 4]
Figure 2004137291
From the above test, it can be seen that sufficient hardness cannot be obtained with 12-hydroxystearic acid and benzylidene sorbitol alone, even if the added amount is increased.
[0013]
Example 2, Comparative Examples 3 and 4
An oil solidifying agent was prepared according to the oil solidifying agent composition shown in Table 5.
[Table 5]
Figure 2004137291
[0014]
{Circle around (1)} Test method To the various oils at a temperature of 20 ° C., the oil solidifying agents of Example 2 and Comparative Examples 3 to 4 are added, and the mixture is stirred and mixed.
{Circle around (2)} Display of hardness Same as in Example 1 and Comparative Examples 1 and 2.
Tables 6 to 8 show the test results.
[0015]
[Table 6]
Figure 2004137291
[0016]
[Table 7]
Figure 2004137291
[0017]
[Table 8]
Figure 2004137291
[0018]
Examples 3 to 5, Comparative Example 5
An oil solidifying agent was prepared according to the oil solidifying agent composition shown in Table 9.
[Table 9]
Figure 2004137291
[0019]
{Circle around (1)} Test method The oil solidifying agents of Examples 3 to 5 and Comparative Example 5 are added to various oils at a temperature of 20 ° C., and the mixture is stirred and mixed, and the hardness after 30 minutes is examined. The amount of each oil solidifying agent added was such that the amount of 2-hydroxystearic acid contained in the oil solidifying agent was 4% by weight with respect to the oil.
{Circle around (2)} Indication of hardness The same as in Example 1 and Comparative Examples 1-2.
Table 10 shows the test results.
[0020]
[Table 10]
Figure 2004137291
The above test shows that the ratio of N-methylpyrrolidone in the solidifying agent is preferably less than 70%.
[0021]
Examples 6 to 8, Comparative Example 6
An oil solidifying agent was obtained according to the oil solidifying agent composition shown in Table 11.
[Table 11]
Figure 2004137291
[0022]
{Circle around (1)} Test method To various oils at a temperature of 20 ° C., the oil solidifying agents of Examples 6 to 8 and Comparative Example 6 are added, and the mixture is stirred and mixed, and the hardness after 30 minutes is examined. The amount of each oil solidifying agent added was such that the amount of 2-hydroxystearic acid contained in the oil solidifying agent was 4% by weight with respect to the oil.
{Circle around (2)} Indication of hardness The same as in Example 1 and Comparative Examples 1-2.
Table 12 shows the results.
[0023]
[Table 12]
Figure 2004137291
The above test shows that the ratio of dimethyl sulfoxide in the solidifying agent is preferably less than 70%.
[0024]
Embodiments 9 to 14
An oil solidifying agent was obtained according to the oil solidifying agent composition shown in Table 13.
[Table 13]
Figure 2004137291
[0025]
Using the oil solidifying agents of the above Examples 9 to 14 and testing the same test methods as in the above Examples 3 to 5 and Comparative Example 5, the results show that both rapeseed oil, soybean oil and sesame oil have sufficient hardness. Was. Regarding the melting point, when actually melting, it is often performed at a temperature 10 to 20 ° C. higher than the melting point, and there is a danger of burns, etc., and in the low temperature season, the melted material solidifies immediately It is inconvenient to use, and the melting point is 50 ° C. or less, which is easy to use.
[0026]
Embodiments 15 to 19
An oil solidifying agent was prepared according to the oil solidifying agent composition shown in Table 14.
[Table 14]
Figure 2004137291
[0027]
Using the oil solidifying agents of the above Examples 15 to 19, the results of tests by the same test method as in the above Examples 6 to 8 and Comparative Example 6 showed that rapeseed oil, soybean oil, and sesame oil were also sufficiently hard. . Regarding the melting point, as described in Examples 5 to 10 above, when actually melting, it is often performed at a temperature higher by 10 to 20 ° C. than the melting point, and there is a danger of burns and the like, and a low temperature. In the season, there are inconveniences such as that the melted material solidifies immediately, and the melting point is easy to use at 50 ° C or less.
[0028]
Examples 20 to 21
An oil solidifying agent was prepared according to the oil solidifying agent composition shown in Table 15.
[Table 15]
Figure 2004137291
[0029]
{Circle around (1)} Test method To 200 g of various oils at a temperature of 20 ° C., 12 g of the oil solidifying agent of the above Examples 20 to 21 was added and mixed with stirring, and the hardness after 30 minutes was examined.
{Circle around (2)} Indication of hardness The same as in Example 1 and Comparative Examples 1-2. However, those marked with “+” indicate that they are even harder.
From the test results shown in Table 16, it can be seen that the hardness increases when N-methylpyrrolidone and dimethyl sulfoxide are used in combination.
[Table 16]
Figure 2004137291
[0030]
【The invention's effect】
As is clear from the above test results, the oil solidifying agent of the present invention can easily solidify oil at room temperature, and can prevent fire that often occurs upon reheating.

Claims (1)

12ヒドロキシステアリン酸30〜70重量%、ベンジリデンソルビトール3〜10重量%と、溶剤としてN−メチルピロリドンおよび/またはジメチルスルフォキサイド30〜70重量%からなることを特徴とする油固化剤。An oil solidifying agent comprising 30 to 70% by weight of 12-hydroxystearic acid, 3 to 10% by weight of benzylidene sorbitol, and 30 to 70% by weight of N-methylpyrrolidone and / or dimethyl sulfoxide as a solvent.
JP2002259654A 2002-08-21 2002-09-05 Oil solidifying agent Pending JP2004137291A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012077113A (en) * 2010-09-30 2012-04-19 Asahi Kasei Home Products Kk Gelling agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012077113A (en) * 2010-09-30 2012-04-19 Asahi Kasei Home Products Kk Gelling agent

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