JPS59120695A - Oil and fat dewaxing process - Google Patents

Oil and fat dewaxing process

Info

Publication number
JPS59120695A
JPS59120695A JP22659782A JP22659782A JPS59120695A JP S59120695 A JPS59120695 A JP S59120695A JP 22659782 A JP22659782 A JP 22659782A JP 22659782 A JP22659782 A JP 22659782A JP S59120695 A JPS59120695 A JP S59120695A
Authority
JP
Japan
Prior art keywords
oil
wax
membrane
stage
filtration
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
Application number
JP22659782A
Other languages
Japanese (ja)
Other versions
JPS6340473B2 (en
Inventor
武藤 善比古
大内 浩生
浜本 武幸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Corp
Nisshin Oillio Group Ltd
Asahi Chemical Industry Co Ltd
Original Assignee
Nisshin Oil Mills Ltd
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nisshin Oil Mills Ltd, Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Nisshin Oil Mills Ltd
Priority to JP22659782A priority Critical patent/JPS59120695A/en
Publication of JPS59120695A publication Critical patent/JPS59120695A/en
Publication of JPS6340473B2 publication Critical patent/JPS6340473B2/ja
Granted legal-status Critical Current

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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) [Summary] 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、粗製植物油からロウ分を効率よく除去する方
法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for efficiently removing wax from crude vegetable oil.

植物油原油中にはロウ分が含まれているが、食用に供す
るにkiWi製工程中でこれを除去しなけれはなら彦い
Although vegetable oil crude oil contains wax, this must be removed during the kiWi manufacturing process before it can be used for human consumption.

ロウ分の除去法として、従来知られている最も普通の方
法は、フィルタープレスでp過する方法であり、さらに
多孔膜で沖過する方法(特願昭57−58255号)が
最近開発されている。いずれも粗製植物油全低温に冷却
(〜て、はとんどすべてのロウ分を結晶化させ、一度に
これをp過除去する方法である。したがって、沖過の際
、粗製植物油中に存在するロウ分結晶の昂:が多く、フ
ィルターもしくは多孔膜表面に急速に多量のロウ分結晶
が堆積し、このため透油量は短時間で急速に小さくなる
ので、膜面積の大きな装置を必要としたり、膜表面に堆
積したロウ分の除去操作をひんばんに行なう必要があり
、p過の7j’F4率が悪いという問題があった。
The most common method known to date for removing wax is to pass through a filter press, and a method of passing through a porous membrane (Japanese Patent Application No. 57-58255) has recently been developed. There is. In both methods, the crude vegetable oil is cooled to a low temperature (~~) to crystallize almost all the wax content, and this is removed at once. A large amount of wax crystals accumulates rapidly on the surface of the filter or porous membrane, and as a result, the amount of oil permeation decreases rapidly in a short period of time, requiring a device with a large membrane area. However, it is necessary to frequently remove the wax deposited on the membrane surface, and there is a problem that the 7j'F4 ratio of p-filtering is poor.

そこで、フィルターもしくは多孔膜表面へのロウ分結晶
の堆積速度を遅くシ、透油量金大S < +。
Therefore, the rate of deposition of wax crystals on the surface of the filter or porous membrane is slowed down, and the oil permeation amount is S < +.

て、ロウ分を効率よく除去できる方法を見出すべく鋭意
研究の結果、本発明を完成するに到つプこ。
As a result of intensive research to find a method for efficiently removing wax, we have completed the present invention.

すなわち、本発明は、ロウ分を含む粗製植物油全常温で
多孔膜に供給して常温で結晶しているロウ分を除去し、
次に膜透過した植物油を残りのロウ分の結晶が析出する
温度に冷却した後、多孔層重たはフィルタープレスに供
給して残りのロウ分を除去することf:M徴とする油脂
の脱ロウ法である。
That is, in the present invention, the entire crude vegetable oil containing wax is supplied to a porous membrane at room temperature to remove the wax that crystallizes at room temperature,
Next, the vegetable oil that has passed through the membrane is cooled to a temperature at which the remaining wax crystals precipitate, and then fed to a porous bed or filter press to remove the remaining wax. This is the Lowe method.

相すリ植物油中のロウ分は、神々の結晶化温度をイjす
るものからなっている。従来の方法は、はぼ−4べての
jJつ分が結晶化する低温に冷却し、析出したロウ分結
晶を一度の沖過で除去(一段濾過)しようというもので
あるが、本発明は、常温で結晶化する結晶化温度の高い
ロウ分をまず沖過除去1〜、次いで結晶化温度の低いロ
ウ分を低温に冷却17て結晶化さ+I:fU過除去する
という、二鹿のい過て除去(二段v−j過)するもので
ある。その結果、フィルターもしくは多孔膜表面へのロ
ウ分結晶の堆積速度は遅くなり、透油量を大きくさせて
、ロウ分を効率よく除去することを1■能にする。
The wax content in the vegetable oil consists of substances that affect the crystallization temperature of the gods. In the conventional method, the wax content is cooled to a low temperature at which all jJ parts of the wax crystals are crystallized, and the precipitated wax crystals are removed in one pass (single-stage filtration), but the present invention , the wax component with a high crystallization temperature that crystallizes at room temperature is first removed by Oki filtration 1 ~, then the wax component with a low crystallization temperature is cooled to a low temperature 17 and crystallized +I:fU filtration is removed. This is a method for removing (two-stage v-j passing). As a result, the rate of deposition of wax crystals on the surface of the filter or porous membrane is slowed down, increasing the amount of oil permeation and making it possible to efficiently remove wax.

本発明に適用できる粗製植物油は、「ノウ分含量の多い
ものが特に好適であり、ヒマワリ油、サフラワー油、コ
メ油、コーン油、ゴマ油等である。
Crude vegetable oils that can be applied to the present invention are particularly suitable for those with a high sulfur content, such as sunflower oil, safflower oil, rice oil, corn oil, and sesame oil.

以下、本発明の構成について詳しく述べる。The configuration of the present invention will be described in detail below.

一段目の濾過において、粗製植物油を常温で多孔膜に供
給することが好ましい。ここで常温とは20〜40℃を
意味する。ti製植物油を常温より高温もしくは低温に
することは、このγ″!i’l’L iJ’lの/i−
λ′)に大きなエネルギーおよび装置″4・必要とする
ので好才しくない。さらに、常温より高温で1.1.結
晶化するロウ分が少なく、ロウ分の除去効果が/J・さ
くで、二段目の濾過に対する負荷が大きくなり、常温よ
り低温で1は油の粘度が大きくなり、透油量が小さくな
り奸才しくない。
In the first stage of filtration, it is preferable to supply the crude vegetable oil to the porous membrane at room temperature. Here, normal temperature means 20 to 40°C. The heating of Ti vegetable oil to a higher or lower temperature than room temperature is due to this γ''!i'l'L iJ'l/i-
λ′) requires a large amount of energy and equipment, which is not a good idea.Furthermore, at higher temperatures than room temperature, 1.1. The wax content that crystallizes is small, and the wax content removal effect is /J. The load on the second-stage filtration increases, and at temperatures lower than room temperature, the viscosity of the oil increases and the amount of oil permeation decreases, which is unskillful.

二段目の1′73Aの際は、−1々目濾過の膜透過油全
残りのロウ分の結晶が析出する温度に冷却することが必
要である。この温度に冷却しないと、「Iつ分を十分除
去できず、満足できる品質の精製植物油が得られない。
During the second stage 1'73A, it is necessary to cool the oil to a temperature at which crystals of all the remaining wax components of the membrane permeated oil from the -1st stage filtration precipitate. If the oil is not cooled to this temperature, it will not be possible to sufficiently remove the "I" component and a refined vegetable oil of satisfactory quality will not be obtained.

ロウ分の結晶が析出する温度とは、植物油の種類により
異なるが、たとえはヒマワリ油の場合0〜10℃である
The temperature at which wax crystals precipitate varies depending on the type of vegetable oil, but for example, in the case of sunflower oil, it is 0 to 10°C.

本発明で使用される多孔膜は 特願昭57−58255
号に記載された、平均孔径0.05〜5μ、膜表面の臨
界表面張力33 dyn/z未満の多孔膜が好ましく、
かつ中空糸状膜が好寸しい。
The porous membrane used in the present invention is disclosed in Japanese Patent Application No. 57-58255.
Porous membranes with an average pore diameter of 0.05 to 5μ and a critical surface tension of the membrane surface of less than 33 dyn/z are preferred, as described in
And a hollow fiber membrane is suitable.

中空糸状膜において、特願昭57−58255号に記載
された逆洗処理およびもしくはフラッシング処理により
、透油量の経uy的な低下を回復させることもiiJ能
である。
In hollow fiber membranes, it is also possible to recover the gradual decrease in oil permeation rate by backwashing and/or flushing treatment as described in Japanese Patent Application No. 57-58255.

本発明において、二段目の濾過に多孔膜を用いる場合、
−膜濾過法にて必要な膜面積の50〜70係の膜1n目
ti (一段目膜面積十二段目膜面積)で同一量の粗製
植物油の脱ロウ処理が可能となるため、装置スペースが
小さく、また、処理コストの低減化がr’■能である。
In the present invention, when using a porous membrane for second stage filtration,
- Since it is possible to dewax the same amount of crude vegetable oil with a membrane 1n ti (first stage membrane area, twelfth stage membrane area) of the membrane area of 50 to 70 of the required membrane area in the membrane filtration method, equipment space is required. is small, and the processing cost can be reduced by r'■.

さらに、二段目の濾過では、−膜濾過法と同様に冷却す
る必要があるが、二段14 F 1ljhの)jQ而面
は、一段濾過法での膜面積よりずっと小きくなるので、
装置の小型化ができ、冷却設備が小芒くてすみ、かつエ
ネルギー上のメリットもある。
Furthermore, in the second stage filtration, cooling is required as in the membrane filtration method, but the surface area )jQ of the second stage is much smaller than the membrane area in the single stage filtration method.
The equipment can be made smaller, the cooling equipment can be smaller, and there are also energy benefits.

本発明において、二段目のV過にフィルタープレスを用
いる場合は、フィルタープレスの透油量が大きくなるの
で、フィルタープレス全小型化することができ、冷却設
備も小型化でき、エネルギー上のメリットもある上、掃
除回数も1/4〜1/6程度少なく又すみ、さらに、使
用する濾過助剤の消費量も少なくすることができるなど
のメリットがある。
In the present invention, when a filter press is used for the second stage V-filtration, the oil permeation amount of the filter press increases, so the entire filter press can be downsized, and the cooling equipment can also be downsized, which is advantageous in terms of energy. Moreover, the number of times of cleaning can be reduced by about 1/4 to 1/6, and the amount of filter aid used can also be reduced.

以下、実施例により本発明を具体的に説明する。Hereinafter, the present invention will be specifically explained with reference to Examples.

実施例 ヒマワリ原油から前処理でリン脂質および遊離脂肪酸等
を除いた粗製植物油(ヒマワリ脱色油)中のロウ分除去
を試みた。
Example An attempt was made to remove wax content from crude vegetable oil (decolorized sunflower oil) obtained by removing phospholipids, free fatty acids, etc. from sunflower crude oil through pretreatment.

ロウ分除去法として、従来法である■フィルタープレス
による一段沖過法、■多孔膜による一段沖過法と、本発
明法である■多孔膜による一段目沖過した後多孔膜で二
段目濾過する二段濾過法、■多孔膜による一段目許過し
た後フィルタープレスで二段目F遇する二段濾過法を実
施し、ロウ分除去能力として各方法の透油量を比較しり
t。
Wax removal methods include the conventional method ■ one-stage filtration method using a filter press, ■ one-stage filtration method using a porous membrane, and the method of the present invention: ■ first-stage filtration using a porous membrane, followed by a second stage filtration using a porous membrane. A two-stage filtration method in which filtration is performed in the first stage is carried out using a porous membrane, followed by a second stage filtering in a filter press, and the amount of oil permeated by each method is compared as the ability to remove wax.

フィルタープレスとして0)法、■法ともリーフフィル
ターを用い、多孔膜としては、(2)法、(3,)法、
(り法とも同じもので、エチレン−テトラフルオロエチ
レン共重合体からなる内径1.5+nm、膜厚500μ
、平均孔径0.3 μ、臨界表面張力26,5 dyn
/Cmの中空糸状膜であって、有効膜面積5ゴのモジュ
ールを用いた。
As the filter press, leaf filters were used for both methods 0) and 2, and as porous membranes, method (2), method (3,),
(It is the same as the method, and is made of ethylene-tetrafluoroethylene copolymer with an inner diameter of 1.5+nm and a film thickness of 500μ.
, average pore size 0.3 μ, critical surface tension 26,5 dyn
A module with a hollow fiber membrane of /Cm and an effective membrane area of 5 was used.

各θ−1過方法のp過東件とその方法による単位涙過面
積汗位++1間当りの透油量の結果を表に示した。
The results of the p permeability of each θ-1 permeation method and the amount of oil permeation per unit lachrymal area per sweat level +1 are shown in the table.

いずれの方法においても、得られた脱ロウ油は0℃にて
48時間放置後の液の濁、!7発生はなく、ロウ分のほ
とんどない良好な品質であった。
In either method, the obtained dewaxed oil becomes cloudy after being left at 0°C for 48 hours. No No. 7 occurrence occurred, and the quality was good with almost no wax content.

なお、表における回収率とは、膜への供給液邦。Note that the recovery rate in the table refers to the amount of liquid supplied to the membrane.

に対する膜透過液量の白′分率のことであり、回収率1
00%とは、いわゆる全濾過法のことである。
It is the white fraction of the amount of liquid permeated through the membrane, and the recovery rate is 1.
00% refers to the so-called total filtration method.

表よりわかるように、多孔膜のみを用いる方法で、一段
沖過去((2)法)と二段沖過去(e、)法)を比較す
ると、従来法である一段濾過法にて必要な膜面積の64
%の膜面積(一段目脱面積十二段[1膜面積)で同−聞
の粗製植物油の脱ロウ処理が、本発明法である二段が1
過法で可能となる。゛まだ、フィルタープレスを用いる
一段濾過法(0)法)と、一段目に多孔膜、二段目にフ
ィルタープレスを用いる二股濾過法(09法)を比較す
ると、従来法である一段濾過法にて必要なフィルタープ
レスの濾過面イ責の25%のい膜面積のフィルタープレ
スで同一量の粗製植物油の脱1コウ処理が、本発明法で
ある二股p過去で可能となる。
As can be seen from the table, when comparing the methods that use only porous membranes, the first stage (method (2)) and the second stage (e,) method, the membrane required for the conventional one-stage filtration method is area of 64
% membrane area (first stage dewaxing area: 12 stages [1 membrane area]).
This is possible by law.゛However, when comparing the one-stage filtration method (method 0) using a filter press with the two-pronged filtration method (method 09) using a porous membrane in the first stage and a filter press in the second stage, it is found that the conventional single-stage filtration method It is possible to remove the same amount of crude vegetable oil using a filter press with a membrane area that is 25% of the filtration surface area of a filter press that is required for this method, using the two-prong method of the present invention.

Claims (1)

【特許請求の範囲】[Claims] ロウ分を含む粗製植物油を常温で多孔膜に供給して常温
で結晶しているロウ分を除去し、次に膜透過した植物油
を残りのロウ分の結晶が析出する温度に冷却した後、多
孔膜またはフィルタープレスに供給して残りのロウ分全
除去することを特徴とする油脂の脱ロウ法。
Crude vegetable oil containing wax is supplied to a porous membrane at room temperature to remove the wax that has crystallized at room temperature, and then the vegetable oil that has passed through the membrane is cooled to a temperature at which the remaining wax crystals precipitate. A dewaxing method for fats and oils characterized by supplying the oil to a membrane or filter press to remove all remaining wax content.
JP22659782A 1982-12-27 1982-12-27 Oil and fat dewaxing process Granted JPS59120695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22659782A JPS59120695A (en) 1982-12-27 1982-12-27 Oil and fat dewaxing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22659782A JPS59120695A (en) 1982-12-27 1982-12-27 Oil and fat dewaxing process

Publications (2)

Publication Number Publication Date
JPS59120695A true JPS59120695A (en) 1984-07-12
JPS6340473B2 JPS6340473B2 (en) 1988-08-11

Family

ID=16847676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22659782A Granted JPS59120695A (en) 1982-12-27 1982-12-27 Oil and fat dewaxing process

Country Status (1)

Country Link
JP (1) JPS59120695A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0281704A (en) * 1988-09-19 1990-03-22 Bridgestone Corp Radial tire for heavy load
JP2010539257A (en) * 2007-09-13 2010-12-16 ジボダン エス エー Dewaxing process
CN104164300A (en) * 2014-09-02 2014-11-26 邹平健源油脂有限公司 Refining method of corn oil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0281704A (en) * 1988-09-19 1990-03-22 Bridgestone Corp Radial tire for heavy load
JP2010539257A (en) * 2007-09-13 2010-12-16 ジボダン エス エー Dewaxing process
CN104164300A (en) * 2014-09-02 2014-11-26 邹平健源油脂有限公司 Refining method of corn oil

Also Published As

Publication number Publication date
JPS6340473B2 (en) 1988-08-11

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