CN1733876A - Processing method of trench oil from food and drink industry - Google Patents
Processing method of trench oil from food and drink industry Download PDFInfo
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- CN1733876A CN1733876A CNA2005100294097A CN200510029409A CN1733876A CN 1733876 A CN1733876 A CN 1733876A CN A2005100294097 A CNA2005100294097 A CN A2005100294097A CN 200510029409 A CN200510029409 A CN 200510029409A CN 1733876 A CN1733876 A CN 1733876A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
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Abstract
The invention discloses preparation method for trench oil from food and drink, which comprises steps as follows: filtering the oil to remove the solid impurity, suspended substance and sol material; separating water; decoloring with acidic bleaching clay in vacuum at 95~105Deg. This method can adjust the molecular structure and performance, and the product can be used in lether fatting agentand vegetable oil paint.
Description
Technical field
The present invention relates to the technical field that daily-life garbage without environmental pollution is handled, and the processing technology of moisture waste oil dehydration technique field and animals and plants assorted oil decolorization technical field, especially trench oil from food and drink industry.
Background technology
According to incompletely statistics, the up to ten million approximately tons of the annual sewer oil that produces of China catering trade, only the generation in Shanghai City every year just reaches more than 200,000 tons, wherein major part has entered rivers,lakes and seas from water drain, severe contamination ecotope; And cause nitrogen in the water, phosphorus content to exceed standard, destroyed natural ecosystems.Rest part is reclaimed by underground oil plant source mill, through coming into the market again after simple the processing, has heavily gone up the common people's dining table.This phenomenon is imported " sewer oil " three words and just can be checked on network, startling to the social harm degree.Therefore, be badly in need of a kind of processing and treating method to trench oil from food and drink industry, making it turns waste into wealth.
Summary of the invention
The purpose of this invention is to provide a kind of treatment process that sewer oil is processed, making it turns waste into wealth.
The invention provides a kind of working method of trench oil from food and drink industry, it may further comprise the steps successively:
Filter: described sewer oil is filtered, remove wherein contained solid impurity, mechanical suspended substance and peptization material;
Separate moisture: from oil, separate and remove moisture;
Decolouring: under the vacuum condition of 10-30 torr, under 95～105 ℃ of temperature, use acid bleaching clay to decolour.
One of this method preferred embodiment in, described separation moisture step comprised for two steps: sewer oil was left standstill 6-10 hour, deposit of moisture in the sewer oil is to the bottom, emit moisture from the bottom, sewer oil is heated to 100-130 ℃ then, the moisture that remains in the oil is distilled away, the water ratio in sewer oil＜0.5%.
This method another preferred embodiment in, described decolouring step is carried out like this: add the acid bleaching clay account for total oil mass 4-6% in the 20-25 weight % oil that obtains, and stir, form bleaching clay suspension; Remaining 75-80% oil is heated to 95～105 ℃, simultaneously, under agitation, the suspension of bleaching clay-oil of making is added in its excess oil continuously, treat to continue again to stir 10-30 minute after suspension adds, then, fine filtering.
The inventive method another preferred embodiment in, after the step of decolouring, also comprise the step of adjusting molecular structure: sewer oil is heated to 260～350 ℃, platinum-palladium-the titanium alloy that adds weight of oil 2%----10% is as catalyzer, continuously stirring 2～5 hours, make vegetables oil will produce unsaturated link(age), and make the sewer oil of non-drying form semi-drying oil with sky dryness energy.
The inventive method another preferred embodiment in, after the step of adjusting molecular structure, the step that also comprises the empty dryness energy of chemistry adjustment: in the semi-drying oil that forms, add 1 ‰～10 ‰ cobalt naphthenate or manganese naphthenates, carbonatoms in described cobalt naphthenate and the manganese naphthenate is C6-C8, make sewer oil have so empty dryness energy: adjusted oil is applied on the glass coupon with line rod spreader, coating thickness 25mm formed dry film after 6-9 hour.
The inventive method another preferred embodiment in, in the step of described adjustment molecular structure, sewer oil is heated to 280～350 ℃.
The inventive method another preferred embodiment in, in the step of described adjustment molecular structure, add platinum-palladium-titanium catalyst of weight of oil 4%--8%, continuously stirring 3～5 hours.
The inventive method another preferred embodiment in, described chemistry adjust empty dryness can step in: add 2 ‰～9 ‰ cobalt naphthenate or manganese naphthenates in the semi-drying oil that is forming.
Detailed description of the invention
In working method of the present invention, at first sewer oil is filtered.This filtration operation can adopt interior known conventional filtration equipment of the industry and technology to carry out.In a concrete preferred implementation, adopt high-pressure membrane filtration treatment technology, that is: will go into the high-pressure membrane filter from the assorted oil pump of aqueous animals and plants of the barreled of catering industry purchase, filter solid impurity, mechanical suspended substance and part peptization material with mechanical system.
Then, sewer oil is carried out oily water separation.This oily water separation operation adopts the interior known conventional oily water separation technique of the industry to carry out.In a concrete preferred implementation, carry out in two steps: standing demix and distill moisture subsequently.To preferably leave standstill 6-10 hour through the moisture vegetable and animals oils input standing separation jar after the filtration treatment, make on the oil in the jar and float to top, depositing in water is gone into the bottom.The top oil reservoir is imported retort with pump, and the water of bottom is emitted under tank body.Oil in the input retort is heated to preferred 100-140 ℃, the moisture that remains in the oil is distilled away.Sampling in per 30 minutes once places chromatograph to detect, till vegetables oil water ratio＜0.5% in still-process.In this preferred operation, time of repose is not particularly limited, and is two-layer as long as can make oil, moisture.But preferred 6-10 hour, more preferably 7-9 hour, preferred again 8 hours.Heating temperature to the oil in the input retort also is not particularly limited, as long as more than 100 ℃ and below the boiling point of oil, but preferred 100-140 ℃, more preferably 100-130 ℃, preferred 110-120 ℃ again, most preferably 120 ℃.
Then, the processing of decolouring.Decolouring under 95～105 ℃ of temperature, uses acid bleaching clay to carry out under the vacuum condition of 10-30 torr.In a concrete preferred implementation, the decolouring step is carried out like this: add the acid bleaching clay that accounts for total oil mass 4-6 weight % in the 20-25% weight % oil that obtains, and stir, form bleaching clay suspension; The oil of remaining 75-80% is heated to 95～105 ℃, simultaneously, under agitation, the suspension of bleaching clay-oil of making is added in its excess oil continuously, treat to continue again to stir 10-30 minute after suspension adds, then, fine filtering.The sewer oil that obtains can reach look 1～No. 2.
This decolouring step can adopt conventional mixing tank, bleacher and fine filtering machine to carry out.In mixing tank, make bleaching clay suspension: with the oil of the 20-25 weight % that obtains with account for the bleaching clay of oily gross weight 4-6 weight %, in mixing tank, under agitation form suspensoid.Remaining oil is pumped in the bleacher, and through a heat exchanger, electricity consumption or other modes are heated to 95～105 ℃ with oil.At this moment, under constantly stirring, with the continuous pump delivery of the bleaching clay-oil suspension that makes in bleacher, thereby suspension is added in its excess oil in the bleacher.Treat to continue again to stir 10-30 minute after suspension adds.Then, oil is sent into the fine filtering machine through pump from the bleacher bottom carry out fine filtering, leach remaining molecule.Whole decolorization is carried out under vacuum, and vacuum tightness is the 10-30 torr.Treated vegetables oil can reach 1～No. 2 look (iron cobalt colorimeter).
In the decolouring step, the consumption that is used to prepare the oil of bleaching clay suspension preferably accounts for the 20-25% of oily gross weight, and the consumption of bleaching clay accounts for the 4-6% of total oil mass, preferred 4-5%, more preferably 4%.The Heating temperature of oil is preferably 98-103 ℃, more preferably 99-100 ℃ in the bleacher.Decolouring is carried out under vacuum, otherwise oil meeting and airborne oxygen reaction have influence on decolorizing effect.Vacuum tightness is the 10-30 torr, preferred 20-30 torr, more preferably 25-30 torr.
The oil through the decolouring processing that obtains like this can be used to be prepared into leather fat, specifically, after the modification of Yelkin TTS chemistry, adopts the preparation technology of conventional leather fat, just can make leather fat.
China is leather and fur industry big country, year consumption leather fat (leather softening oil) nearly 50,000 tons.Leather fat is to add other chemical ingredients with animals and plants crude oil to be prepared from the general product of China at present, and is with high costs, and employing the inventive method is processed the leather softening oil of the sewer oil preparation that obtains, and reduced the cost of leather fat significantly.
The sewer oil that is obtained by aforesaid method of the present invention processing can also be through further processing, for example: high temperature adjusts molecular structure and chemistry is adjusted empty dryness energy, is used to prepare vegetables oil coating then.
The step that high temperature is adjusted molecular structure is: the sewer oil oil after will handling through decolouring is imported high-temperature tank with pump, with electrical heating method or other modes, be heated to 260～350 ℃, add platinum-palladium-titanium alloy catalyzer of weight of oil 2%----10% this moment, continuously stirring 2～5 hours, make oil produce a part of unsaturated link(age), make the oil of non-drying be transformed into the semi-drying oil that possesses sky dryness energy.In this step, the preferred 270-350 of Heating temperature ℃, more preferably 280-350 ℃, preferred 290-350 ℃ again, preferred 300-350 ℃ again.Platinum-palladium-titanium alloy catalyst consumption is 2-10%, if be lower than 2%, catalytic effect is not obvious, if be higher than 10%, catalytic effect reaches capacity, and cost up.The preferred 3-9% of catalyst consumption, more preferably 4-8%, preferred again 5-7%.Reaction times is 2-5 hour, and the time is long more, helps forming unsaturated link(age) more.Preferred 3-5 of reaction times hour, more preferably 4-5 hour, preferred again 5 hours.
The step that chemistry is adjusted empty dryness energy is: the semi-drying oil that pyroreaction is generated pumps into letdown tank, adds the empty dryness energy that the siccative that accounts for oily gross weight 1 ‰～10 ‰ is adjusted oil.In preferred cobalt naphthenate of the siccative that uses among the present invention and the manganese naphthenate, carbonatoms wherein is C
6-8The consumption of siccative is lower than 1 ‰, adjusts the DeGrain of empty dryness energy, and the consumption of siccative is higher than 10 ‰, then can waste.Because it is assorted oily that catering trade waste oil is animals and plants, its molecular structure is extremely unstable, so the addition of siccative will be according to the difference of every batch of vegetables oil molecular structure and increase and decrease in right amount in 1 ‰-10 ‰ scope, total requirement is: adjusted oil is applied on the glass coupon with line rod spreader, coating thickness 25mm, observe its sky dryness energy, can form dry film with 6-9 hour is standard, can form dry film in preferred 6-8 hour.
Adjust the sewer oil of sky dryness energy, promptly can be used for preparing vegetables oil coating.The method for preparing vegetables oil coating is the ordinary method in the industry.
At present, the coating that China is used for the wood decoration protection is solvent based coating more than 90%, and its main raw material derives from petroleum resources; According to the shuo netting index according to the show, every day, the imported crude oil amount reached more than 2,000,000 barrels now in China, the import volume that expects every day the year two thousand thirty will reach 1,000 ten thousand tons, account for 74% of China market total demand, self-evident, China will become the serious resistance of the national economic development to the degree of dependence of petroleum resources, and data shows that the solvent based coating that China was used for the woodenware industry in 2004 just reaches 360,000 tons; And be ascendant trend year by year, wherein drain into atmospheric toxic gas and reach 260,000 tons, not only poisoned HUMAN HEALTH, and polluted atmosphere; And discarded sewer oil of the present invention is when being used to prepare the vegetables oil woodwork coating, and being used for it is renewable resources, nontoxic, zero release, replace solvents type woodwork coating on a large scale; If widelyd popularize, will save the appreciable petroleum resources of quantity for China.
In addition, in the solvent-borne type woodwork coating of existing market circulation, contain a large amount of triphens, VOC, free monomers etc. are to the human body toxic and harmful substance, though country has formulated corresponding GB-18581-2001 (limit standard of objectionable impurities in the solvent-borne type woodwork coating) because of technology barrier, still contain a large amount of volatile injurant matter in the coating, dispute that the annual at present therefore reason of China takes place and health problem are lifted and are unequal to number, and sewer oil of the present invention is used to prepare the vegetables oil woodwork coating be, be used for its natural plant oil that has drawn from, there is not volatile matter fully, can reach the food grade standard, Shanghai City product toxicity quality supervision and inspection station is detected, and proves actual nontoxic level.
The vegetables oil woodwork coating has obtained widespread use in developed country such as American-European-Japanese at present, is to adopt the preparation of plant crude oil refining in developed countries such as America and Europes; So price can be in any more, wherein the product of Germany, Britain also has sale in Chinese market at present, about 250 yuans of every liter of unit price, and more traditional woodwork coating unit price exceeds nearly tens times, so be not used widely; And the vegetables oil woodwork coating of our research and development employing waste cooking oil is a raw material, and cost declines to a great extent, and estimates that price is suitable with the solvent-borne type woodwork coating.Market potential is quite huge, ton surplus China's present year consumption solvent-borne type woodwork coating 360,000, as producing 5000 tons of calculating of vegetables oil woodwork coating with year, all sewer oils that can completely consumed Shanghai City catering industry produce, and be the nearly 10000 tons of petroleum resources of country's saving.
Generally speaking, the present invention rationally utilizes catering industry to discard sewer oil, turns waste into wealth, and reduces municipal pollution.Sewer oil reclaims after state the processing treatment of technology later, can be used to be prepared into leather fat, ecological vegetable oil paint etc.The waste oil residue that preparation process produces can also add wood chip and become boiler oil and can not produce secondary pollution; The present invention may fundamentally change the uncontrollable situation of moisture waste oil pollution that catering trade produces.
Embodiment
Embodiment 1
Filter: adopt high-pressure membrane filtration treatment technology, that is: will go into the high-pressure membrane filter from the assorted oil pump of aqueous animals and plants of the barreled of catering industry purchase, filter solid impurity, mechanical suspended substance and peptization material with mechanical system.
Oily water separation: then, sewer oil is carried out oily water separation.To leave standstill 8 hours through the moisture sewer oil input standing separation jar after the filtration treatment, make on the oil in the jar and float to top, depositing in water is gone into the bottom.The top oil reservoir is imported retort with pump, and the water of bottom is emitted under tank body.Oil in the input retort is heated to 120 ℃, the moisture that remains in the oil is distilled away.Sampling in per 30 minutes once places chromatograph to detect, till vegetables oil water ratio＜0.5% in still-process.
Decolouring: the 20% weight oil that obtains more than in mixing tank, adding, adding accounts for the acid bleaching clay of 4 weight % of the total oil mass that obtains then, and violent stirring is also mixed, and forms the suspension of bleaching clay-oil; Remaining 80% oil is joined in the bleacher, be heated to 100 ℃, simultaneously, under constantly stirring, the suspension of bleaching clay-oil of making is continuously pumped in the bleacher, treat to continue stirring 20 minutes again after suspension adds by electrically heated mode, then, fine filtering.The sewer oil that obtains reaches look No. 1.Whole decolorization is all carried out (iron cobalt colorimeter) under the vacuum condition of 20 torrs.This oil is used to prepare leather fat.
Adjust molecular structure: the sewer oil after will handling through decolouring is imported high-temperature tank with pump, be heated to 300 ℃ with electrical heating method, add the platinum-palladium-titanium alloy catalyzer of weight of oil 7% this moment, continuously stirring 5 hours, make oil produce a part of unsaturated link(age), make the oil of non-drying be transformed into the semi-drying oil that possesses sky dryness energy.
Chemistry is adjusted empty dryness energy: will react the semi-drying oil that generates and pump into letdown tank, and add the C that accounts for oily gross weight 6 ‰
6The cobalt naphthenate siccative.Adjusted oil is applied on the glass coupon with line rod spreader, and coating thickness 25mm observes its sky dryness energy, and it formed dry film after 8 hours.
This oil is used to prepare vegetables oil coating.
Embodiment 2
Filter: adopt high-pressure membrane filtration treatment technology.To go into the high-pressure membrane filter from the assorted oil pump of aqueous animals and plants of the barreled of catering industry purchase, filter solid impurity, mechanical suspended substance and peptization material with mechanical system.
Oily water separation: then, sewer oil is carried out oily water separation.To leave standstill 6 hours through the moisture sewer oil input standing separation jar after the filtration treatment, make on the oil in the jar and float to top, depositing in water is gone into the bottom.The top oil reservoir is imported retort with pump, and the water of bottom is emitted under tank body.Oil in the input retort is heated to 100 ℃, the moisture that remains in the oil is distilled away.Sampling in per 30 minutes once places chromatograph to detect, till vegetables oil water ratio＜0.5% in still-process.
Decolouring: the 25% weight oil that obtains more than in mixing tank, adding, adding accounts for the acid bleaching clay of 6 weight % of the total oil mass that obtains then, and violent stirring is also mixed, and forms the suspension of bleaching clay-oil; Remaining 75% oil is joined in the bleacher, be heated to 95 ℃, simultaneously, under constantly stirring, the suspension of bleaching clay-oil of making is continuously pumped in the bleacher, treat to continue stirring 30 minutes again after suspension adds by electrically heated mode, then, fine filtering.The sewer oil that obtains reaches look No. 2.Whole decolorization is all carried out (iron cobalt colorimeter) under the vacuum condition of 25 torrs.This oil is used to prepare leather fat.
Adjust molecular structure: the sewer oil after will handling through decolouring is imported high-temperature tank with pump, be heated to 260 ℃ with electrical heating method, add the platinum-palladium-titanium alloy catalyzer of weight of oil 2% this moment, continuously stirring 2 hours, make oil produce a part of unsaturated link(age), make the oil of non-drying be transformed into the semi-drying oil that possesses sky dryness energy.
Chemistry is adjusted empty dryness energy: will react the semi-drying oil that generates and pump into letdown tank, and add the C that accounts for oily gross weight 1 ‰
8The cobalt naphthenate siccative.Adjusted oil is applied on the glass coupon with line rod spreader, and coating thickness 25mm observes its sky dryness energy, and it formed dry film after 9 hours.
This oil is used to prepare vegetables oil coating.
Embodiment 3
Filter: adopt high-pressure membrane filtration treatment technology, that is: will go into the high-pressure membrane filter from the assorted oil pump of aqueous animals and plants of the barreled of catering industry purchase, filter solid impurity, mechanical suspended substance and peptization material with mechanical system.
Oily water separation: then, sewer oil is carried out oily water separation.To leave standstill 10 hours through the moisture sewer oil input standing separation jar after the filtration treatment, make on the oil in the jar and float to top, depositing in water is gone into the bottom.The top oil reservoir is imported retort with pump, and the water of bottom is emitted under tank body.Oil in the input retort is heated to 130 ℃, the moisture that remains in the oil is distilled away.Sampling in per 30 minutes once places chromatograph to detect, till vegetables oil water ratio＜0.5% in still-process.
Decolouring: the 23% weight oil that obtains more than in mixing tank, adding, adding accounts for the acid bleaching clay of 5 weight % of the total oil mass that obtains then, and violent stirring is also mixed, and forms the suspension of bleaching clay-oil; Remaining 77% oil is joined in the bleacher, be heated to 105 ℃, simultaneously, under constantly stirring, the suspension of bleaching clay-oil of making is continuously pumped in the bleacher, treat to continue stirring 30 minutes again after suspension adds by electrically heated mode, then, fine filtering.The sewer oil that obtains reaches look No. 1.Whole decolorization is all carried out (iron cobalt colorimeter) under the vacuum condition of 30 torrs.This oil is used to prepare leather fat.
Adjust molecular structure: the sewer oil after will handling through decolouring is imported high-temperature tank with pump, be heated to 350 ℃ with electrical heating method, add the platinum-palladium-titanium alloy catalyzer of weight of oil 10% this moment, continuously stirring 3.5 hours, make oil produce a part of unsaturated link(age), make the oil of non-drying be transformed into the semi-drying oil that possesses sky dryness energy.
Chemistry is adjusted empty dryness energy: will react the semi-drying oil that generates and pump into letdown tank, and add the C that accounts for oily gross weight 10 ‰
8The manganese naphthenate siccative.Adjusted oil is applied on the glass coupon with line rod spreader, and coating thickness 25mm observes its sky dryness energy, and it formed dry film after 6 hours.This oil is used to prepare vegetables oil coating.
Claims (8)
1. the working method of a trench oil from food and drink industry, it may further comprise the steps successively:
Filter: described sewer oil is filtered, remove wherein contained solid impurity, mechanical suspended substance and peptization material;
Separate moisture: from oil, separate and remove moisture;
Decolouring: under the vacuum condition of 10-30 torr, under 95～105 ℃ of temperature, use acid bleaching clay to decolour.
2. working method as claimed in claim 1, wherein said separation moisture step comprised for two steps: sewer oil was left standstill 6-10 hour, deposit of moisture in the sewer oil is to the bottom, emit moisture from the bottom, sewer oil is heated to 100-130 ℃ then, the moisture that remains in the oil is distilled away, the water ratio in sewer oil＜0.5%.
3. working method as claimed in claim 1, wherein said decolouring step is carried out like this: add the acid bleaching clay that accounts for total oil mass 4-6% in the 20-25 weight % oil that obtains, and stir, form bleaching clay suspension; Remaining 75-80% oil is heated to 95～105 ℃, simultaneously, under agitation, the suspension of bleaching clay-oil of making is added in its excess oil continuously, treat to continue again to stir 10-30 minute after suspension adds, then, fine filtering.
4. working method as claimed in claim 1, it is after the step of decolouring, and is further comprising the steps of:
Adjust molecular structure: sewer oil is heated to 260～350 ℃, platinum-palladium-the titanium alloy that adds weight of oil 2%----10% is as catalyzer, continuously stirring 2～5 hours makes vegetables oil will produce unsaturated link(age), and makes the sewer oil of non-drying form the semi-drying oil with sky dryness energy.
5. working method as claimed in claim 4, it is further comprising the steps of:
Chemistry is adjusted empty dryness energy: add 1 ‰～10 ‰ cobalt naphthenate or manganese naphthenates in the semi-drying oil that forms, the carbonatoms in described cobalt naphthenate and the manganese naphthenate is C
6-C
8, make sewer oil have so empty dryness energy: adjusted oil is applied on the glass coupon with line rod spreader, and coating thickness 25mm formed dry film after 6-9 hour.
6. working method as claimed in claim 4 wherein in the step of described adjustment molecular structure, is heated to 280～350 ℃ with oil.
7. working method as claimed in claim 4 wherein in the step of described adjustment molecular structure, adds platinum-palladium-titanium catalyst of weight of oil 4%----8%, continuously stirring 3～5 hours.
8. working method as claimed in claim 5 is wherein adjusted in the step of empty dryness energy at described chemistry: add 2 ‰～9 ‰ cobalt naphthenate or manganese naphthenates in the semi-drying oil that is forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100294097A CN1733876A (en) | 2005-09-05 | 2005-09-05 | Processing method of trench oil from food and drink industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100294097A CN1733876A (en) | 2005-09-05 | 2005-09-05 | Processing method of trench oil from food and drink industry |
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| CN1733876A true CN1733876A (en) | 2006-02-15 |
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| CNA2005100294097A Pending CN1733876A (en) | 2005-09-05 | 2005-09-05 | Processing method of trench oil from food and drink industry |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210200B (en) * | 2006-12-27 | 2010-10-20 | 中国石油化工股份有限公司 | Hydrogenation treatment and catalytic cracking combined process for residual oil |
| CN102051267A (en) * | 2010-12-31 | 2011-05-11 | 西安中润环保科技有限公司 | Industrialized treatment facility and method for catering wastes |
| CN102399916A (en) * | 2011-10-17 | 2012-04-04 | 深圳市天之一科技开发有限公司 | Process for preparing fat-liquoring agent by hogwash oil |
| CN103103745A (en) * | 2011-11-10 | 2013-05-15 | 天津三吉和盛科技有限公司 | Novel energy-saving, environment-friendly special wool lubricant for wool spinning and preparation method thereof |
-
2005
- 2005-09-05 CN CNA2005100294097A patent/CN1733876A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210200B (en) * | 2006-12-27 | 2010-10-20 | 中国石油化工股份有限公司 | Hydrogenation treatment and catalytic cracking combined process for residual oil |
| CN102051267A (en) * | 2010-12-31 | 2011-05-11 | 西安中润环保科技有限公司 | Industrialized treatment facility and method for catering wastes |
| CN102051267B (en) * | 2010-12-31 | 2013-03-27 | 西安中润环保科技有限公司 | Industrialized treatment facility and method for catering wastes |
| CN102399916A (en) * | 2011-10-17 | 2012-04-04 | 深圳市天之一科技开发有限公司 | Process for preparing fat-liquoring agent by hogwash oil |
| CN103103745A (en) * | 2011-11-10 | 2013-05-15 | 天津三吉和盛科技有限公司 | Novel energy-saving, environment-friendly special wool lubricant for wool spinning and preparation method thereof |
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