CN1715385A - Method and its device for extracting oil from oil containing carclazyte or oil containing diatomite - Google Patents
Method and its device for extracting oil from oil containing carclazyte or oil containing diatomite Download PDFInfo
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- CN1715385A CN1715385A CNA2004100092796A CN200410009279A CN1715385A CN 1715385 A CN1715385 A CN 1715385A CN A2004100092796 A CNA2004100092796 A CN A2004100092796A CN 200410009279 A CN200410009279 A CN 200410009279A CN 1715385 A CN1715385 A CN 1715385A
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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 present invention relates to method and apparatus for extracting oil from edible oil decolorizing clay, lubricating oil decolorizing clay and oil bearing diatomite. The method includes the following steps: 1. mixing No. extracting solvent oil or n-hexane with oil bearing clay or diatomite; 2. thrice extracting oil from the clay or diatomite via natural precipitation process; 3. filtering mixed liquid and separating oil from solvent in evaporation unit; and 4. eliminating solvent from the extracted clay or diatomite via steaming or stoving and exhausting clay or diatomite. The apparatus includes sealed leaching tank with stirrer, sealed filter with stainless steel filtering sheets, solvent-eliminating steaming and stoving pot, sealed solid-liquid separator, sealed concentrated mixture liquid storage, solvent tank, evaporator, condensator, etc. The method and the apparatus is for extracting oil from oil bearing clay or diatomite.
Description
Background technology
In the oil and fat chemical refining process, used discoloring agent atlapulgite and flocculating aids diatomite all contain a certain amount of grease, generally between 20%～40%.But, manufacturing enterprise generally these exhausted atlapulgites and diatomite as offal treatment, so not only cause environmental pollution, and cause the waste resource.Through testing relatively repeatedly, work out this method and apparatus, according to update search, not seeing relevant report.
Summary of the invention
The purpose of this invention is to provide a kind of after oil and fat chemical decolouring carclazyte and filter after diatomite extract greasy method and apparatus, this cover method and apparatus can effectively extract the grease in oil-containing argil and the oil-containing diatomite, reduce environmental pollution, obtain high economic benefit and social benefit.Equipment of the present invention consumption quantity of solvent is few, grease extraction yield height, and pipeline, valve are difficult for stopping up, and energy consumption is low, can scale production, the carclazyte after the processing, diatomite do not pollute environment.
For achieving the above object, the present invention takes following technical scheme: method steps is as follows:
(1) mixes with oil-containing argil or diatomite with No. six solvent for extraction or normal hexane;
(2) adopt natural sedimentation method to divide three extractions to the grease in carclazyte or the diatomite;
(3) mixed solution adopts conventional evaporation equipment in the oil extraction equipment to carry out solvent to separate with greasy after filtering;
(4) carclazyte after the extraction or diatomite are discharged after steaming the baking precipitation;
The present invention not only can handle food oils bleaching clay, lubricating grease bleaching clay, can also handle oil-containing diatomite.
The present invention extracts employed solvent can be No. six solvent for extraction or normal hexane.
The present invention adopts natural sedimentation method that mixed solution is separated with carclazyte or diatomite, and sedimentation time is 40～60 minutes.
When present device was enabled first, weight of solvent was 7 times of contained weight of oil in oil-containing argil or the diatomite when extracting for the first time, and weight of solvent is carclazyte or diatomite weight 1.2 times during second and third time extraction; In the extraction process afterwards, mixed solution in the temporary storage tank of the leach liquor second time of extraction use for the first time is as solvent, extraction for the second time uses mixed solution in the temporary storage tank of leach liquor for the third time as solvent, and fresh solvent is used in extraction for the third time, and weight of solvent is carclazyte or diatomite weight 1.2 times.
Carclazyte after the present invention's extraction or diatomite are through being with a steaming baking pot precipitation that stirs, and the precipitation type of heating adopts thermal oil indirect heating and steam direct heating, and the restir precipitation was 40～60 minutes after steaming baking vapor phase temperature reached 80 degrees centigrade.
The employed equipment of method of the present invention includes: sealed band agitation leach jar, sealed stainless steel filter disc filter, steam baking precipitation pot, sealed solid-liquid separation jar, sealed band stir the temporary storage tank of dense mixed solution, the temporary storage tank of the leach liquor second time, the temporary storage tank of leach liquor for the third time, solvent tank, charging sealing auger, the solid-liquid separation valve, conventional evaporation equipment in the oil extraction equipment and supporting condensing equipment thereof.Described charging sealing auger is connected to sealed band agitation leach jar; Solvent tank is connected to sealed band agitation leach jar through valve, pump and pipeline; Sealed batch extractor one side is equipped with the solid-liquid separation valve, links to each other with the temporary storage tank of dense mixed solution by valve, pipeline; Sealed batch extractor links to each other with the temporary storage tank of the leach liquor second time with pipeline by solid-liquid separation valve, valve, pump; The temporary storage tank of dense mixed solution links to each other with filter through valve, pump and pipeline; Filter links to each other with steaming baking pot through valve; Sealed band agitation leach jar opposite side links to each other with the solid-liquid separation jar through valve; The solid-liquid separation pot bottom links to each other with steaming baking pot through valve; Solid-liquid separation is canned a solid-liquid separation valve, links to each other with the temporary storage tank of leach liquor for the third time through valve, pump and pipeline; For the second time the temporary storage tank of leach liquor, the temporary storage tank of leach liquor all links to each other with sealed band agitation leach jar through valve for the third time.
Employed carclazyte of method of the present invention or diatomite apparatus for feeding not only are convenient to charging for the sealing auger, can prevent effectively that also the evaporable solvent gas from spilling from opening for feed.
In the employed sealed batch extractor of method of the present invention whipping appts is housed, whipping appts is the rake teeth formula.The whipping appts of rake teeth formula makes carclazyte or diatomite be easy to mix with solvent, and required power is less.
The temporary storage tank of the employed dense mixed solution of method of the present invention is a band stirring-type sealed can, and whipping appts makes interior difficult generation of the temporary storage tank of dense mixed solution deposit, and leads to the difficult obstruction of pipeline of filter.
The employed filter of method of the present invention is sealed stainless steel filter disc filter.
The employed solid-liquid separation jar of method of the present invention is sealed, and band handwheel dumping device is housed.After the solid-liquid separation, mixed solution arrives the temporary storage tank of leach liquor for the third time through valve, pump delivery, and remaining solid can easily enter by the handwheel dumping device and steam the baking pot, is difficult for obstruction.
The employed steaming baking of method of the present invention pot is sealed, and whipping appts is housed.Its precipitation type of heating is the heating of thermal oil indirect heating and open steam, is subjected to thermally-stabilisedly, and quick heating is beneficial to the evaporation of solvent, and precipitation is rapid, and is easy and simple to handle.
The employed sealed band agitation leach jar of method of the present invention, solid-liquid separation jar all are equipped with the solid-liquid separation valve.
The 3rd vaporizer in the employed evaporation equipment of method of the present invention adopts tubular evaparator.The type of heating of first vaporizer, second vaporizer, the 3rd vaporizer is the heat-conducting oil heating mode in the evaporation equipment.Adopt heat-conducting oil heating, evaporation is stable, is beneficial to operation, save energy.
Employed all motors of method of the present invention are fire proof motor, and all pumps are the explosion-proof type pump.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Accompanying drawing is leaching of the present invention, separation, filtration, steaming baking desolventizing equipment process flow sheet.
As shown in drawings, leaching of the present invention, separation, filtration, steaming baking desolventizing equipment include a sealed band leaching 33, two in 26, one sealed Separation of Solid and Liquid tanks of 5, one sealed stainless steel filter disc filters of tank steam baking precipitation pot, namely with The steaming baking precipitation pot 39 that sealed Separation of Solid and Liquid tank 33 links to each other, the steaming baking precipitation that links to each other with sealed stainless steel filter disc filter 26 30, one sealed bands of pot stir 14, one of the temporary storage tanks of the temporary storage tank of dense mixed liquor leachate 22, one second time and soak for the third time 17, two Separation of Solid and Liquid valves of 1, one charging sealing auger of 13, one solvent tanks of the temporary storage tank of fluid namely are installed in sealed band Separation of Solid and Liquid valve 11 on the leaching tank 5, be installed in the Separation of Solid and Liquid valve 34 on the sealed Separation of Solid and Liquid tank 33.
Charging sealing auger 17 connects sealed band leaching tank 5, and oil-containing argil or oil-containing diatomite enter through charging aperture 15 Charging sealing auger 17. Sealed band leaching tank 5 is by Separation of Solid and Liquid valve 11, valve 12, valve 19, pump 20 and the The temporary storage tank 14 of secondary leachate links to each other. The temporary storage tank 14 of leachate is by valve 10 and sealed band leaching tank 5 phases for the second time Connect. Sealed band leaching tank 5 stirs dense mixed liquor by Separation of Solid and Liquid valve 11, valve 12, valve 18 with sealed band Storage tank 22 links to each other temporarily. The temporary storage tank 22 of dense mixed liquor links to each other with sealed stainless steel filter disc filter 26 by valve 23, pump 24. Sealed stainless steel filter disc filter 26 links to each other with evaporation condensing plant by pipeline. Sealed stainless steel filter disc filter 26 leads to Crossing valve 28 links to each other with steaming baking precipitation pot 30. Sealed band leaching tank 5 is by valve 8 and sealed Separation of Solid and Liquid tank 33 Link to each other. Sealed Separation of Solid and Liquid tank 33 is by Separation of Solid and Liquid valve 34, valve 35, pump 36 and the temporary storage tank 13 of leachate for the third time Link to each other. The temporary storage tank 13 of leachate links to each other with sealed band leaching tank 5 by valve 9 for the third time. Sealed Separation of Solid and Liquid tank 33 dry by the fire precipitation pot 39 by valve 37 and steaming links to each other. Solvent tank 1 stirs with sealed band by valve 2, valve 3, pump 4 Batch extractor 5 links to each other.
Embodiment
As shown in drawings, the extraction process first time to first raw material: Open valve 2, valve 3, ejector priming 4, fresh solvent in the solvent tank 1 is imported in the sealed band agitation leach jar 5, weight of solvent is 7 times of contained weight of oil in oil-containing argil or the diatomite, after delivery solvent finishes, valve-off 2, valve 3, pump 4; Starter motor 16 with oil-containing argil or the oil-containing diatomite opening for feed 15 of packing into, enters sealed band agitation leach jar 5 by auger 17, after charging finishes, and disable motor 16; Starter motor 6 carries out the first time and stirs extraction, stirs after 10～15 minutes, and disable motor 6 carries out natural sedimentation; Precipitate after 40～60 minutes, open solid-liquid separation valve 11, valve 12, valve 18, dense mixed solution is imported sealed band stir the temporary storage tank 22 of dense mixed solution, while starter motor 21, the dense mixed solution that sealed band is stirred in the temporary storage tank 22 of dense mixed solution stirs; After the sealed band of the whole inputs of dense mixed solution stirs the temporary storage tank 22 of dense mixed solution, close solid-liquid separation valve 11, valve 12, valve 18; Open valve 23, ejector priming 24 filters dense mixed solution input filter 26; After filtration finishes, valve-off 23, pump 24; Clear liquor after the filtration is sent to vaporizer to carry out solvent and separates with greasy, solvent and grease after obtaining reclaiming, and solvent returns solvent tank 1 by pipe-line transportation, realizes recycle; Open valve 28, carclazyte after filtering or diatomite are entered steaming baking precipitation pot 30, starter motor 29, open thermal oil valve 43, steam valve 42 simultaneously, thermal oil and open steam after the input heating steam the baking precipitation to carclazyte or diatomite, after steaming baking vapor phase temperature reaches 80 degrees centigrade, steam baking 40～60 minutes again, carclazyte after steaming the baking precipitation or diatomite are discharged through exporting 31, and solvent gas and steam reclaim through condensation; Disable motor 29, valve 28, steam valve 42.
The extraction process second time to first raw material: Open valve 2, valve 3, ejector priming 4, fresh solvent in the solvent tank 1 is imported sealed band agitation leach jar 5, weight of solvent is in the sealed band agitation leach jar 5 in carclazyte or the diatomite 1.2 times of weight, after solvent delivery finishes, valve-off 2, valve 3, pump 4; Starter motor 6 carries out the second time and stirs extraction, stirs after 10 minutes, and disable motor 6 carries out natural sedimentation; Precipitate after 40～60 minutes, open solid-liquid separation valve 11, valve 12, valve 19, ejector priming 20 will leach mixed solution for the second time and be transported in the temporary storage tank 14 of the leach liquor second time, after conveying finishes, close solid-liquid separation valve 11, valve 12, valve 19, pump 20.
Extraction process for the third time to first raw material: Open valve 2, valve 3, ejector priming 4 is imported sealed band agitation leach jar 5 with the fresh solvent in the solvent tank 1, and weight of solvent is in the sealed band agitation leach jar 5 in carclazyte or the diatomite 1.2 times of weight; After solvent delivery finishes, valve-off 2, valve 3, pump 4; Starter motor 6 stirs extraction for the third time; Stir after 10 minutes, Open valve 8 is transported to sealed solid-liquid separation jar 33 with the compound in stirring, and carries out natural sedimentation and separates; After compound all is transported to sealed solid-liquid separation jar 33, disable motor 6, valve 8; Compound is opened solid-liquid separation valve 34, valve 35 precipitate 40～60 minutes in sealed solid-liquid separation is irritated after, and ejector priming 36 will leach mixed solution for the third time and be transported to for the third time in the temporary storage tank 13 of leach liquor; Mixed solution is closed solid-liquid separation valve 34, valve 35, pump 36 after carrying and finishing; Open valve 37 enters steaming baking precipitation pot 39 with carclazyte after the extraction for the third time or diatomite, if carclazyte in the sealed solid-liquid separation jar 33 or diatomite are not easy to discharge, rotatable handwheel 32, use dumping device help carclazyte or diatomite to discharge; After carclazyte or diatomite all enter and steam baking precipitation pot 39, valve-off 37; Open thermal oil valve 44, steam valve 25, thermal oil and open steam after the input heating, carclazyte or diatomite are steamed the baking precipitation, after steaming baking vapor phase temperature reaches 80 degrees centigrade, steam baking 40～60 minutes again, carclazyte after steaming the baking precipitation or diatomite are discharged through exporting 40, and solvent gas and steam reclaim through condensation; After steaming baking precipitation is finished, steam off valve 25.
Through after the above process, first raw material that is added disposes.
The extraction process first time to second batch of raw material: Open valve 10, the mixed solution in the temporary storage tank 14 of the leach liquor second time is imported in the sealed band agitation leach jar 5, as the solvent of the extraction process first time, after conveying finishes, valve-off 10; Starter motor 16, will with essentially identical oil-containing argil of first raw material weight or the oil-containing diatomite opening for feed 15 of packing into, enter sealed band agitation leach jar 5 by auger 17, after charging finishes, disable motor 16; All the other processes are identical with the extraction process to first raw material.
The extraction process second time to second batch of raw material: Open valve 9, the mixed solution in the temporary storage tank 13 of leach liquor is for the third time imported in the sealed band agitation leach jar 5, as the solvent of the extraction process second time, carry finish after, valve-off 9; All the other processes are identical with the extraction process second time to first raw material.
Extraction process for the third time to second batch of raw material: identical with extraction process for the third time to first raw material.
To the later treating processes of raw material that adds with identical to the treating processes of second batch of raw material, promptly the mixed solution in the temporary storage tank 14 of the leach liquor second time of extraction use for the first time is as solvent, extraction for the second time uses mixed solution in the temporary storage tank 13 of leach liquor for the third time as solvent, and fresh solvent is used in extraction for the third time.If for the second time temporary storage tank 14 of leach liquor or the mixed solution deficiency in the temporary storage tank 13 of leach liquor for the third time can add the proper amount of fresh solvent.
In sum, adopt the method and apparatus that relates among the present invention from oil-containing argil or oil-containing diatomite, to extract grease, discarded carclazyte or diatomite are fully used, promptly reduce environmental pollution, can obtain considerable economic again.Equipment of the present invention has dropped into actual production.
Claims (9)
1. one kind is extracted greasy method from food oils bleaching clay, lubricating grease bleaching clay, oil-containing diatomite, and it is characterized in that: this method may further comprise the steps:
(1) mixes with oil-containing argil or diatomite with No. six solvent for extraction or normal hexane;
(2) adopt natural sedimentation method to divide three extractions to the grease in carclazyte or the diatomite;
(3) mixed solution adopts conventional evaporation equipment in the oil extraction equipment to carry out solvent to separate with greasy after filtering;
(4) carclazyte after the extraction or diatomite are discharged after steaming the baking precipitation;
2. according to claim 1ly extract greasy method from food oils bleaching clay, lubricating grease bleaching clay, oil-containing diatomite, it is characterized in that: this method can be handled oil-containing argil and oil-containing diatomite; Extract employed solvent and be No. six solvent for extraction or normal hexane;
3. according to claim 1ly from food oils bleaching clay, lubricating grease bleaching clay, oil-containing diatomite, extract greasy method, it is characterized in that: adopt natural sedimentation method that mixed solution is separated with carclazyte or diatomite, sedimentation time is 40～60 minutes;
4. according to claim 1ly from food oils bleaching clay, lubricating grease bleaching clay, oil-containing diatomite, extract greasy method, it is characterized in that: when device first is enabled, weight of solvent is 7 times of contained weight of oil in oil-containing argil or the diatomite when extracting for the first time, and weight of solvent is carclazyte or diatomite weight 1.2 times during second and third time extraction; In the extraction process afterwards, mixed solution in the temporary storage tank of the leach liquor second time of extraction use for the first time is as solvent, extraction for the second time uses mixed solution in the temporary storage tank of leach liquor for the third time as solvent, fresh solvent is used in extraction for the third time, and fresh solvent weight is carclazyte or diatomite weight 1.2 times;
5. according to claim 1ly from food oils bleaching clay, lubricating grease bleaching clay, oil-containing diatomite, extract greasy method, it is characterized in that: the steaming baking pot precipitation that carclazyte after the extraction or diatomite stir through band, the precipitation type of heating adopts thermal oil indirect heating and steam direct heating, and the restir precipitation was 40～60 minutes after steaming baking vapor phase temperature reached 80 degrees centigrade;
6. equipment according to claim 1, it is characterized in that: this equipment includes: sealed band agitation leach jar, and sealed stainless steel filter disc filter steams baking precipitation pot, sealed solid-liquid separation jar, sealed band stirs the temporary storage tank of dense mixed solution, for the second time the temporary storage tank of leach liquor, the temporary storage tank of leach liquor for the third time, solvent tank, charging sealing auger, solid-liquid separation valve, conventional evaporation equipment in the oil extraction equipment and supporting condensing equipment thereof; Described charging sealing auger is connected to sealed band agitation leach jar; Solvent tank is connected to sealed band agitation leach jar through valve, pump and pipeline; Sealed batch extractor one side is equipped with the solid-liquid separation valve, links to each other with the temporary storage tank of dense mixed solution by valve, pipeline; Sealed batch extractor links to each other with the temporary storage tank of the leach liquor second time with pipeline by solid-liquid separation valve, valve, pump; The temporary storage tank of dense mixed solution links to each other with filter through valve, pump and pipeline; Filter links to each other with steaming baking pot through valve; Sealed batch extractor opposite side links to each other with the solid-liquid separation jar through valve; The solid-liquid separation pot bottom links to each other with steaming baking pot through valve; Solid-liquid separation is canned a solid-liquid separation valve, links to each other with the temporary storage tank of leach liquor for the third time through valve, pump and pipeline; For the second time the temporary storage tank of leach liquor, the temporary storage tank of leach liquor all links to each other with sealed band agitation leach jar through valve for the third time;
7. equipment according to claim 6 is characterized in that: carclazyte or diatomite apparatus for feeding are the sealing auger;
8. equipment according to claim 6 is characterized in that: described sealed batch extractor is equipped with whipping appts, and whipping appts is the rake teeth formula; The temporary storage tank of described dense mixed solution is band stirring-type sealed can; Described filter is sealed filter disc filter; Described solid-liquid separation jar is sealed, and the handwheel dumping device is housed; Described sealed band agitation leach jar, sealed solid-liquid separation jar all are equipped with the solid-liquid separation valve; Described steaming baking pot is sealed, and whipping appts is housed;
9. equipment according to claim 6 is characterized in that: the 3rd vaporizer in the described evaporation equipment adopts tubular evaparator; The type of heating of first vaporizer, second vaporizer, the 3rd vaporizer is the heat-conducting oil heating mode in the evaporation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100092796A CN1715385A (en) | 2004-06-30 | 2004-06-30 | Method and its device for extracting oil from oil containing carclazyte or oil containing diatomite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100092796A CN1715385A (en) | 2004-06-30 | 2004-06-30 | Method and its device for extracting oil from oil containing carclazyte or oil containing diatomite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1715385A true CN1715385A (en) | 2006-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100092796A Pending CN1715385A (en) | 2004-06-30 | 2004-06-30 | Method and its device for extracting oil from oil containing carclazyte or oil containing diatomite |
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| CN (1) | CN1715385A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376867B (en) * | 2008-09-16 | 2010-10-13 | 李长栓 | Leaching oil extracting process for waste carclazyte after decolouration in edible lipid industry |
| CN102329691A (en) * | 2011-08-25 | 2012-01-25 | 浙江银河药业有限公司 | Decolorizing method of rice bran first-grade oil |
| CN102517154A (en) * | 2011-11-20 | 2012-06-27 | 文水县国华油脂有限公司 | Extraction method for extracting waste white clay residual oil |
| CN105349267A (en) * | 2015-11-22 | 2016-02-24 | 唐山圣昊农科发展有限公司 | Recovery device and treatment method of grease in rice oil used bleaching clay |
| CN105968015A (en) * | 2016-06-03 | 2016-09-28 | 南通市晖通油脂科技有限公司 | Device for extracting plasticizer from filter residues and extracting method using same |
| CN105967994A (en) * | 2016-06-03 | 2016-09-28 | 南通市晖通油脂科技有限公司 | Method for extracting dimer acid from waste clay residues for producing dimer acid |
| CN106268020A (en) * | 2016-09-29 | 2017-01-04 | 广东电网有限责任公司电力科学研究院 | A kind of filter the technique of fiber grain in transformer oil |
| CN107937142A (en) * | 2017-11-29 | 2018-04-20 | 中色科技股份有限公司 | Oily diatomite treatment equipment connected into rolling mill full-oil recovery system |
| CN112516683A (en) * | 2020-12-16 | 2021-03-19 | 华润环保发展有限公司 | Waste diatomite filter aid regeneration system and method |
| CN112779098A (en) * | 2020-12-18 | 2021-05-11 | 浙江宏泰油脂科技有限公司 | Waste argil oil extraction treatment device |
-
2004
- 2004-06-30 CN CNA2004100092796A patent/CN1715385A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376867B (en) * | 2008-09-16 | 2010-10-13 | 李长栓 | Leaching oil extracting process for waste carclazyte after decolouration in edible lipid industry |
| CN102329691A (en) * | 2011-08-25 | 2012-01-25 | 浙江银河药业有限公司 | Decolorizing method of rice bran first-grade oil |
| CN102329691B (en) * | 2011-08-25 | 2013-04-10 | 浙江银河药业有限公司 | Decolorizing method of rice bran first-grade oil |
| CN102517154A (en) * | 2011-11-20 | 2012-06-27 | 文水县国华油脂有限公司 | Extraction method for extracting waste white clay residual oil |
| CN105349267A (en) * | 2015-11-22 | 2016-02-24 | 唐山圣昊农科发展有限公司 | Recovery device and treatment method of grease in rice oil used bleaching clay |
| CN105967994A (en) * | 2016-06-03 | 2016-09-28 | 南通市晖通油脂科技有限公司 | Method for extracting dimer acid from waste clay residues for producing dimer acid |
| CN105968015A (en) * | 2016-06-03 | 2016-09-28 | 南通市晖通油脂科技有限公司 | Device for extracting plasticizer from filter residues and extracting method using same |
| CN106268020A (en) * | 2016-09-29 | 2017-01-04 | 广东电网有限责任公司电力科学研究院 | A kind of filter the technique of fiber grain in transformer oil |
| CN107937142A (en) * | 2017-11-29 | 2018-04-20 | 中色科技股份有限公司 | Oily diatomite treatment equipment connected into rolling mill full-oil recovery system |
| CN112516683A (en) * | 2020-12-16 | 2021-03-19 | 华润环保发展有限公司 | Waste diatomite filter aid regeneration system and method |
| CN112516683B (en) * | 2020-12-16 | 2022-05-17 | 华润环保发展有限公司 | Waste diatomite filter aid regeneration system and method |
| CN112779098A (en) * | 2020-12-18 | 2021-05-11 | 浙江宏泰油脂科技有限公司 | Waste argil oil extraction treatment device |
| CN112779099A (en) * | 2020-12-18 | 2021-05-11 | 浙江宏泰油脂科技有限公司 | Waste argil oil extraction treatment device |
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