JPS6390599A - Solidification of waste edible oil - Google Patents
Solidification of waste edible oilInfo
- Publication number
- JPS6390599A JPS6390599A JP23660986A JP23660986A JPS6390599A JP S6390599 A JPS6390599 A JP S6390599A JP 23660986 A JP23660986 A JP 23660986A JP 23660986 A JP23660986 A JP 23660986A JP S6390599 A JPS6390599 A JP S6390599A
- Authority
- JP
- Japan
- Prior art keywords
- cooking oil
- waste cooking
- solidification
- waste
- hydroxystearic acid
- 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.)
- Pending
Links
- 239000002699 waste material Substances 0.000 title claims description 31
- 238000007711 solidification Methods 0.000 title claims 4
- 230000008023 solidification Effects 0.000 title claims 4
- 239000008157 edible vegetable oil Substances 0.000 title 1
- 239000008162 cooking oil Substances 0.000 claims description 25
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229940114072 12-hydroxystearic acid Drugs 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002798 polar solvent Substances 0.000 claims description 9
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000012046 mixed solvent Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 239000005639 Lauric acid Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000010899 old newspaper Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fats And Perfumes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 本発明は廃食用油の固化方法に関する。[Detailed description of the invention] The present invention relates to a method for solidifying waste cooking oil.
従来の技術
一般家庭、レストラン、食品加工工場等においては品質
の劣化した廃食用油の処理がしばしば問題となる。例え
ば一般家庭やレストラン等においては廃油を古新聞紙等
の古紙や雑巾等に含浸させて廃棄したり、下水中にその
まま放流しているのが実情であるが、これらの処理方法
は非常に手間がかかつて煩雑であり、また下水配管の閉
塞や下水処理負荷の増大等の問題をもたらす。また、比
較的最近になって廃食用油を回収して石けんとして再利
用する処理方法が提案されているが、廃油を保管貯蔵す
る容器や場所の確保がむずかしいばかりでなく、防災上
の見地からも問題があって普及するに至っていない。BACKGROUND OF THE INVENTION In general households, restaurants, food processing factories, etc., the disposal of waste cooking oil of degraded quality is often a problem. For example, the reality is that in households and restaurants, waste oil is disposed of by impregnating waste oil such as old newspapers or rags, or it is discharged directly into sewage water, but these disposal methods are very time-consuming. In the past, this method was complicated and caused problems such as blockage of sewage pipes and increased sewage treatment load. In addition, relatively recently, a treatment method has been proposed in which waste cooking oil is collected and reused as soap, but it is not only difficult to secure containers and space to store waste oil, but also from a disaster prevention perspective. However, it has not become popular due to problems.
このような問題を解決するために、廃食用油に固形化剤
、例えばラウリン酸、ステアリン酸、１２−ヒドロキシ
ステアリン酸等を添加し、廃油を固体として回収する方
法が提案され、注目をあっめており（例えば特開昭５３
−１９２６８号公報、特開昭５５−１０６２９８号公報
、特開昭６１−１９６８１号公報参照）、既に数種の固
形化剤が市販されている。In order to solve these problems, a method has been proposed in which solidifying agents such as lauric acid, stearic acid, 12-hydroxystearic acid, etc. are added to waste cooking oil to recover the waste oil as a solid, and this method has received a lot of attention. (For example, Japanese Patent Application Laid-Open No. 53
Several types of solidifying agents are already commercially available.
発明が解決しようとする問題点
しかしながら、従来から提案され、または市販されてい
る廃食用油固形化剤を使用して廃油を回収する全ての方
法は、廃食用油に固形化剤を加熱して溶解させた後、冷
却することを必須工程とし、従って、廃食用油の加熱と
冷却に相当なエネルギーと時間を要するので不経済的で
非能率的である。Problems to be Solved by the Invention However, all methods of recovering waste oil using waste cooking oil solidifying agents that have been proposed or commercially available involve heating the solidifying agent to the waste cooking oil. After melting, cooling is an essential step, and therefore, heating and cooling the waste cooking oil requires considerable energy and time, which is uneconomical and inefficient.
特に多量の廃食用油をタンクに貯蔵する食品加工工場等
においてはこれらの問題は重大である。These problems are particularly serious in food processing factories and the like that store large amounts of waste cooking oil in tanks.
本発明は固形化剤の加熱溶解工程およびこれに付随する
冷却工程を必要とせずに廃食用油を回収容易な状態に効
果的に固化する方法を提供するためになされたものであ
る。The present invention has been made in order to provide a method for effectively solidifying waste cooking oil to a state where it can be easily recovered without requiring a heating and dissolving step of a solidifying agent and an accompanying cooling step.
問題点を解決するための手段
即ち本発明は、常温でゲル化しない１２−ヒドロキシス
テアリン酸の極性溶剤溶液を廃食用油に添加して混合し
、該混合物を水と接触させることを特徴とする廃食用油
の固化方法に関する。A means for solving the problem, that is, the present invention is characterized in that a polar solvent solution of 12-hydroxystearic acid that does not gel at room temperature is added to waste cooking oil, mixed, and the mixture is brought into contact with water. Concerning a method for solidifying waste cooking oil.
本発明に使用する１２−ヒドロキシステアリン酸の極性
溶剤溶液は比較的高濃度、例えば約２０重量％以上の濃
度に調製しても常温でゲル化しない溶液である。The polar solvent solution of 12-hydroxystearic acid used in the present invention is a solution that does not gel at room temperature even if it is prepared to a relatively high concentration, for example, about 20% by weight or more.
このような溶液の溶媒としては低級アルコール、例えば
メタノール、エタノール、インプロパツール等、非プロ
トン性極性溶剤、例えばジメチルスルホオキサイド、Ｎ
−メチルピロリドン、アセトニトリル、スルホラン等が
例示される。Solvents for such solutions include lower alcohols such as methanol, ethanol, impropatol, etc., aprotic polar solvents such as dimethyl sulfoxide, N
-Methylpyrrolidone, acetonitrile, sulfolane, etc. are exemplified.
これらの溶媒は単独もしくは任意の混合溶媒として使用
してもよい。These solvents may be used alone or as any mixed solvent.
特に好適な溶媒は毒性の比較的低いエタノール、ジメチ
ルスルホキサイド、Ｎ−メチルピロリドン、またはこれ
らの任意の混合溶媒である。Particularly suitable solvents are ethanol, dimethyl sulfoxide, N-methylpyrrolidone, or any mixed solvent thereof, which have relatively low toxicity.
１２−ヒドロキシステアリン酸の濃度は通常、約５〜９
０重量％、好ましくは約１０〜４０重量％である。The concentration of 12-hydroxystearic acid is usually about 5-9
0% by weight, preferably about 10-40% by weight.
上記の１２−ヒドロキシステアリン酸の極性溶剤溶液と
廃食用油の混合割合は廃食用油の性状等によっても左右
され、特に限定的ではないが、通常は廃食用油１００容
量部に対して約１〜２０容量部である。The mixing ratio of the above polar solvent solution of 12-hydroxystearic acid and waste cooking oil depends on the properties of the waste cooking oil, etc., and is not particularly limited, but is usually about 1 part by volume per 100 parts by volume of waste cooking oil. ~20 parts by volume.
ことができる。また、多量の水に混入させると、廃食用
油は水に浮上したゲル状固体として得ることができる。be able to. Furthermore, when mixed with a large amount of water, waste cooking oil can be obtained as a gel-like solid floating on the water.
この析出原理は明らかではないが、次の様に考えられる
。即ち、１２−ヒドロキシステアリン酸の極性溶剤溶液
と廃食用油との液状混合物を水と接触させると、水との
親和性の強い極性溶媒は水相中へ移行し、一方、廃食用
油相中の１２−ヒドロキシステアリン酸はその活性な水
素結合によって廃食用油の流動性を低下させてこれを固
体として水中に析出させる。Although the principle of this precipitation is not clear, it is thought to be as follows. That is, when a liquid mixture of a polar solvent solution of 12-hydroxystearic acid and waste cooking oil is brought into contact with water, the polar solvent with a strong affinity for water migrates into the aqueous phase, while the liquid mixture in the waste cooking oil phase moves into the water phase. 12-hydroxystearic acid reduces the fluidity of waste cooking oil through its active hydrogen bonds, causing it to precipitate out as a solid in water.
以上のようにして析出させた廃食用油は容易に回収して
そのまま焼却等の廃棄処分または石けん等としての再利
用工程に付されるが、その取扱い、貯蔵、輸送等は液状
の廃食用油に比べて非常に簡便である。The waste cooking oil precipitated in the above manner is easily recovered and subjected to a process of disposal such as incineration or reuse as soap, etc., but its handling, storage, transportation, etc. It is very simple compared to .
以下、本発明を実施例によって説明する。Hereinafter, the present invention will be explained by examples.
実施例
ジメチルスルホオキサイド９５ｆおよびＮ−メチルピロ
リドンもしくはエチルアルコール５ｙから成る混合溶剤
に１２−ヒドロキシステアリン酸約３０重量％を加温溶
解させた（この溶液は５℃でも氷結もしくは晶出しなか
った）。Example About 30% by weight of 12-hydroxystearic acid was dissolved under heating in a mixed solvent consisting of dimethyl sulfoxide 95f and N-methylpyrrolidone or ethyl alcohol 5y (this solution did not freeze or crystallize even at 5°C).
得られた溶液を約１０容量倍の廃食用油に加え、充分攪
拌した後、該混合物を多量の水中に投入して攪拌したと
ころ、廃食用油は固化して水面に浮上し、簡便に回収す
ることができた。The obtained solution was added to about 10 times the volume of waste cooking oil and stirred thoroughly. When the mixture was poured into a large amount of water and stirred, the waste cooking oil solidified and floated to the water surface, making it easy to collect. We were able to.
発明の効果
本発明によれば、廃食用油の加熱および冷却処理を必要
とすることなく、常温で廃食用油を効果的に回収容易な
固体として析出させることができる。Effects of the Invention According to the present invention, waste cooking oil can be effectively precipitated as an easily recoverable solid at room temperature without requiring heating and cooling treatment of the waste cooking oil.
Claims (1)
の極性溶剤溶液を廃食用油に添加して混合し、該混合物
を水と接触させることを特徴とする廃食用油の固化方法
。 ２、極性溶剤がエタノール、ジメチルスルホオキサイド
およびＮ−メチルピロリドンから成る群から選択される
１種もしくはそれ以上の混合物である第１項記載の固化
方法。 ３、１２−ヒドロキシステアリン酸の極性溶剤溶液の濃
度が約５〜９０重量％である第１項記載の固化方法。[Claims] 1. Solidification of waste cooking oil, characterized by adding and mixing a polar solvent solution of 12-hydroxystearic acid that does not gel at room temperature to waste cooking oil, and bringing the mixture into contact with water. Method. 2. The solidification method according to item 1, wherein the polar solvent is a mixture of one or more selected from the group consisting of ethanol, dimethylsulfoxide, and N-methylpyrrolidone. 2. The solidification method of claim 1, wherein the concentration of the polar solvent solution of 3,12-hydroxystearic acid is about 5 to 90% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23660986A JPS6390599A (en) | 1986-10-03 | 1986-10-03 | Solidification of waste edible oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23660986A JPS6390599A (en) | 1986-10-03 | 1986-10-03 | Solidification of waste edible oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6390599A true JPS6390599A (en) | 1988-04-21 |
Family
ID=17003176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23660986A Pending JPS6390599A (en) | 1986-10-03 | 1986-10-03 | Solidification of waste edible oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6390599A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5513120A (en) * | 1978-07-13 | 1980-01-30 | Ajinomoto Co Inc | Solidification of hydrophobic organic medium |
-
1986
- 1986-10-03 JP JP23660986A patent/JPS6390599A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5513120A (en) * | 1978-07-13 | 1980-01-30 | Ajinomoto Co Inc | Solidification of hydrophobic organic medium |
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