CN1197112A - Method for preparing grease hydrolytic catalyst - Google Patents
Method for preparing grease hydrolytic catalyst Download PDFInfo
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- CN1197112A CN1197112A CN 98111225 CN98111225A CN1197112A CN 1197112 A CN1197112 A CN 1197112A CN 98111225 CN98111225 CN 98111225 CN 98111225 A CN98111225 A CN 98111225A CN 1197112 A CN1197112 A CN 1197112A
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Abstract
A catalyst for oil hydrolysis is prepared from acid dregs as by-product generated by acid refining of petroleum products, whose free sulfuric acid content is 5-35 Wt.% and sulfornic acid content is 50-80 Wt.%, through water washing reaction at 60-95 deg.C by adding water, adding alkaline saponifying agent for saponifying reaction, and regulating pH value to 5.5-12.5, and features short production period, and high hydrolysis efficiency.
Description
The present invention relates to a kind of preparation method of fat-splitting agent, specifically be exactly adopt that petroleum oil product acid treating technology produces by product---acid sludge is the method for feedstock production fat-splitting agent.
At present, the technology of process for processing lipid acid is commonly acidic hydrolysis both at home and abroad, and the hydrolyst that is adopted mostly is alkylbenzene sulfonate and naphthalenesulfonate." Fine Organic Chemical product technical manual " volume two that " Science Press " published in 1992 has been announced the Witco 1298 Soft Acid production technique: it is to generate alkyl chloride with chlorine by dewaxing by molecular sieve oil under the illumination effect, alkyl chloride and benzene condensation are dodecylbenzene, use the oleum sulfonation again, obtain Witco 1298 Soft Acid.This complex manufacturing, process control is strict, and the cycle is long, expensive raw material price, production cost height.
On the other hand, in petroleum oil product acid treating process, to produce a large amount of three waste prodss---acid sludges every year, China only, the annual acid sludge that produces just reaches tens thousand of tons.This by product is thorny problem at home always, for a long time, only does furnace fuel or buried processing, and polluted source, air destroy ecotope.
The objective of the invention is to: the preparation method that a kind of low production cost, technology fat-splitting agent simple, with short production cycle is provided on the one hand; On the other hand for the by product of petroleum oil product acid treating---acid sludge is sought a kind of new application approach.
For achieving the above object, the present invention is by the following technical solutions:
The preparation method of fat-splitting agent of the present invention is by following technology, step is carried out: with the by product of petroleum oil product acid treating---and acid sludge is a raw material, free sulfuric acid weight content in the raw material is 5～35%, the sulfonic acid weight content is 50～80%, adding weight is that the water of raw material 50%～200% carries out washed reaction, 60～95 ℃ of control reaction temperature, 10～30 minutes reaction times, washed reaction finishes, leave standstill and tell sour water, the alkaline saponifying agent that adds the raw material acid quantity of slag 5～30% again carries out saponification reaction, temperature of reaction is controlled at 60～80 ℃, the pH value be controlled at 5.5～12.5 product.
In the preparation method of fat-splitting agent provided by the invention, the sulfonic acid molecular weight in the raw material acid sludge of selecting for use is good in 250～350 scopes.The preferable range of the washing water yield that adds is 100～150% of the raw material acid quantity of slag.It is excessive to add the water yield, and the sulfonic acid loss that plays the catalytic hydrolysis effect in the finished product is bigger, can increase catalyst levels; Amount of water is few, and saponification alkali consumption height increases the catalyzer cost.The preferable range of its finished product pH value is 7.5～12.0, and optimum range is 8～9.The size of finished product pH value is by the kind and the consumption decision of the alkaline saponifying agent that adds.
Compare with other fat-splitting agent production method, the preparation method of fat-splitting agent provided by the invention has the following advantages:
(1) comprehensive utilization chemical industry three wastes by product maximally utilises the acid sludge resource, reduces and produces the hydrolyst cost, reduces environmental pollution.
(2) fat-splitting agent produced of the present invention complete processing and other fat-splitting agent---alkylbenzene sulfonate, naphthene sulfonic acid are compared, and Production Flow Chart is simple, the cycle lacks.
For further describing the present invention, it is described in further detail below in conjunction with embodiment:
Embodiment 1
With white oil 15# acid sludge is raw material, and consumption is 100 grams, and it contains free sulfuric acid 35%, and the sulfonic acid weight content is 50%, adds 150 gram water, and the washed reaction temperature is controlled at 60～70 ℃, and stirring reaction 20 minutes left standstill 15 minutes, emitted sour water; Add saponifying agent sodium hydroxide, the saponification reaction temperature is controlled at 60～80 ℃, adjusts pH value to 10.5 and is finished product.
Embodiment 2
Raw material is the white mineral oil acid sludge, and consumption is 100 grams, and free sulfuric acid weight content 5%, sulfonic acid weight content are 80%, adds 100 gram water, and the washed reaction temperature is controlled at 80～85 ℃ of scopes, and stirring reaction 10 minutes left standstill 20 minutes, emitted sour water; Add saponifying agent sodium hydroxide, the saponification reaction temperature is controlled at 60～80 ℃, adjusts pH value to 8.5 and is finished product.
Embodiment 3
Raw material is the white mineral oil acid sludge, consumption is 100 grams, free sulfuric acid weight content 20%, the sulfonic acid weight content is 60%, adds the water yield 50 grams, and the washed reaction temperature is controlled at 65～70 ℃ of scopes, stirring reaction 30 minutes, other production stage and industrial condition such as embodiment 2, saponifying agent are sodium hydroxide, and product final pH value is 12.5.
Embodiment 4
The water yield of washed reaction is 200 grams, and the washed reaction temperature is controlled at 85～95 ℃, and the final pH value of product is 8, other production stage and processing condition such as embodiment 3.
Embodiment 5
Adding saponifying agent is yellow soda ash, other production stage and processing condition such as embodiment 2, and the final pH value of product is 9.0.
Embodiment 6
Adding saponifying agent is sodium bicarbonate, other production stage and processing condition such as embodiment 2, and the final pH value of product is 7.5.
Embodiment 7
The adding saponifying agent is an ammoniacal liquor, other production stage and processing condition such as embodiment 2, and the final pH value of product is 5.5.
The equipment that the preparation method adopted of fat-splitting agent of the present invention is the conventional equipment that present technique field personnel know.
Adopt the fat-splitting agent of the inventive method preparation, its sulfonate content is 50～80%, sulfonate in the product is different along with the variation of raw material, its molecular weight also is not quite similar, generalized case, product is the sulfonate mixtures between the molecular weight 250～350, and normal temperature is water-soluble plaster material down.
The raw material that the inventive method adopted is not limited to present embodiment, can come from the acidity of being discharged when producing white oil, white mineral oil, lightweight/middle machine oil(MMO), lubricating oil and machinery oil, lubricating oil additive respectively and contain the sulfonic acid acid sludge.
Grease adopts catalytic hydrolysis process to prepare in the process of lipid acid, and as using the fat-splitting agent of the inventive method preparation, then catalyst consumption is about 0.8～1.2% of raw oil material weight, and the acid value of final fat acid can reach more than the 185mgKOH/g.
Claims (6)
1. the preparation method of a fat-splitting agent, it is characterized in that it carries out according to following technology and step: with the by product in the petroleum oil product acid treating process---acid sludge is a raw material, wherein the free sulfuric acid weight content is 5～35%, sulfonic acid weight content 50～80%, the water that is raw material acid sludge weight 50～200% to its adding weight carries out washed reaction, 60～95 ℃ of control reaction temperature, 10～30 minutes reaction times; Leave standstill and tell sour water, the alkaline saponifying agent that adds acid sludge weight 5～30% in the material after washing carries out saponification reaction, and temperature of reaction is controlled at 60～80 ℃, and the final pH scope is 5.5～12.5.
2. the preparation method of fat-splitting agent as claimed in claim 1 is characterized in that the sulfonic acid molecular weight in the acid sludge raw material is 250～350.
3. the preparation method of fat-splitting agent as claimed in claim 1 or 2, the weight that it is characterized in that the water that washed reaction adds is 100～150% of raw material acid sludge weight.
4. the preparation method of fat-splitting agent as claimed in claim 3 is characterized in that, the final pH scope is 7.5～12.0.
5. the preparation method of fat-splitting agent as claimed in claim 4 is characterized in that the final pH scope is 8～9.
6. the preparation method of fat-splitting agent as claimed in claim 3 is characterized in that: the alkaline saponifying agent that carries out saponification reaction can be selected any one in sodium hydroxide, water glass, sodium bicarbonate, the ammoniacal liquor for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111225 CN1197112A (en) | 1998-04-03 | 1998-04-03 | Method for preparing grease hydrolytic catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111225 CN1197112A (en) | 1998-04-03 | 1998-04-03 | Method for preparing grease hydrolytic catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1197112A true CN1197112A (en) | 1998-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98111225 Pending CN1197112A (en) | 1998-04-03 | 1998-04-03 | Method for preparing grease hydrolytic catalyst |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190655A (en) * | 2016-07-05 | 2016-12-07 | 兰汉斌 | A kind of child cleans liquid soap |
| CN108569963A (en) * | 2018-05-02 | 2018-09-25 | 广东广益科技实业有限公司 | A kind of production technology of palmitic acid waste residue recycling |
| CN118681698A (en) * | 2024-08-26 | 2024-09-24 | 山东齐城清泉生态科技股份有限公司 | Preparation method of low Wen Yingdan collector |
-
1998
- 1998-04-03 CN CN 98111225 patent/CN1197112A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190655A (en) * | 2016-07-05 | 2016-12-07 | 兰汉斌 | A kind of child cleans liquid soap |
| CN108569963A (en) * | 2018-05-02 | 2018-09-25 | 广东广益科技实业有限公司 | A kind of production technology of palmitic acid waste residue recycling |
| CN118681698A (en) * | 2024-08-26 | 2024-09-24 | 山东齐城清泉生态科技股份有限公司 | Preparation method of low Wen Yingdan collector |
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