CN1730729A - Biological degreasing agent used in metal processing pretreatment of oil removing and degreasing, and method for processing metal surface greasy dirt - Google Patents
Biological degreasing agent used in metal processing pretreatment of oil removing and degreasing, and method for processing metal surface greasy dirt Download PDFInfo
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Abstract
The invention discloses a biological degreaser for degreasing pretreatment in metal processing industry and method for processing greasy dirt on metal surfaces, which integrates the two independent processes of grease removing and greasy dirt decomposing, the biological degreaser containing oil-degraded microorganisms can not only scale off greasy dirt from metal surfaces, but also decompose the greasy dirt simultaneously.
Description
Technical field
The present invention relates to metal finishing and field of waste water treatment, specifically, relate to a kind of biological oil removing agent and process metal surfaces smeary method thereof that has oil removing simultaneously and decompose the greasy dirt dual-use function.
Background technology
Processing industry, particularly metal-processing industry as electroplating industry, belong to heavy polluted industry.In the surface treatment and the course of processing of metal or plastics part, can use lipid auxiliary agents such as a lot of petroleum-type derivatives (mineral oil), animal grease and Vegetable oil lipoprotein, as slushing oil, machining oil, punching oil, cooling fluid, lubricated wet goods.These lipid auxiliary agents are to protection workpiece and equipment, prevent that it from getting rusty or corrosion etc. has important effect.But meanwhile, when these workpiece and material need be made the finished product, these lipid auxiliary agents must be removed totally again from workpiece surface, otherwise will be influenced other operation, even cause serious product rejection.Therefore, how to be the common difficulty that nearly all processing manufacturing industry faces from the workpiece surface oil removing effectively.
Various degreasers in the present degreaser market are as the agent of alkaline aq. type electrochemical deoiling; Perhaps toluene, dimethylbenzene, trieline equal solvent type degreaser, though all have certain oil removing ability, but bring a lot of other problems inevitably, there is potential to have a strong impact on etc. as high material-consumption, high energy consumption, high pollution even to operator's health.Agent of aq. type electrochemical deoiling and solvent-borne type degreaser in use all will produce a large amount of oily waste liquors inevitably.For the processing of processing industry oily waste liquor, oily waste liquor is mixed in sanitary sewage handles often; Perhaps in production technique, add an oily-water seperating equipment, then the greasy dirt of collecting is transferred to special mechanism and carry out special processing.Therefore, how handling oily waste liquor effectively is another common difficulty that nearly all processing manufacturing industry faces.
For degreaser, except agent of aq. type electrochemical deoiling and solvent-borne type degreaser, in recent years, some comparatively degreasers of environmental protection have also appearred in the enhancing along with the common people and government's environmental consciousness and environmental protection legislation.As the biodegradable degreaser, the main component of this degreaser is derived from the intravital extract of natural plant, after they strip down greasy dirt, self can biological decomposition, and increase extra organic waste thereby be unlikely to oily waste liquor; Another kind of environmental protection degreaser is a chlorinatedorganic degreaser substitute, can cause very big destruction to ozonosphere because chlorinatedorganic has been proved, and it can be for a long time residual at occurring in nature simultaneously, the health of human body and other life entity is caused seriously influence.Therefore, the use of chlorinated organics has been subjected to more and more limiting even forbidding in international community, and encourages the substitute of research and development chlorinatedorganic, promptly not chloride (with other halogen), safer, eco-friendly novel de-oiling agent.Current all degreasers, no matter be aq. type, solvent-borne type, or environment-friendly type degreaser, they all have a common characteristic bar none, and that is exactly that they all only have the function of carrying out oil removing from the processing work surface, and do not have these smeary functions of decomposition.
For above-mentioned two hang-ups that processing industry faced, though a large amount of research reports is all arranged for many years both at home and abroad, and all obtained some progress aspect these two, but always be with oil removing with decompose that greasy dirt studies as two separate technologies.Therefore, if can find a kind of efficient ways, can find a kind of possess simultaneously oil removing and decomposition smeary degreaser, oil removing and these two technologies of decomposition greasy dirt are solved as a technology, will be a revolutionary improvement in this field so.
Summary of the invention
The objective of the invention is present situation, a kind of biological oil removing agent that possesses oil removing simultaneously and decompose the greasy dirt dual-use function is provided, thereby realize oil removing and the purpose of decomposition greasy dirt as an art breading at above-mentioned existing metal-processing industry greasy dirt processing.
Another object of the present invention provides a kind of process metal surfaces smeary method, and it adopts the degreaser that possesses oil removing and decompose the greasy dirt dual-use function, and will remove that metal surface greasy dirt and these two technologies of decomposition greasy dirt mix is that a technology is handled.
The present invention is directed to the present situation that existing greasy dirt is handled, creatively propose oil removing and these two thoughts that separate technology is studied as a technology of decomposition greasy dirt.Engineers of the present invention has successfully been developed the new bio degreaser that contains tensio-active agent and have a liking for oily microbial strains first through secular arduous tackling key problem.Contain the biological oil removing agent of having a liking for oily microbial strains and not only greasy dirt can be peeled off from workpiece surface, and simultaneously can also be oil stain decomposition, thus realized with oil removing with decompose the purpose that greasy dirt is handled as a technology.
The main creation point of biological oil removing agent of the present invention is to add to have a liking for oily microbial strains in containing the degreaser of tensio-active agent, and this is initiative in degreaser greasy dirt process field.
Biological oil removing agent of the present invention is made up of host, host contain tensio-active agent 0.1～60 weight % and have a liking for oily microorganism 0.1～30 weight %, surplus is a water.
Above-mentioned host contains tensio-active agent 0.5～60 weight %, have a liking for oily microorganism 0.5～30 weight % and inhibitor 0.1～3.0 weight %, surplus is a water.
Biological oil removing agent of the present invention is made up of host, and described host contains bio-surfactant 1～60 weight %, has a liking for oily microorganism 1～30 weight %, inhibitor 0.2～3.0 weight %, biological enzyme 0.01～1.0 weight %, surplus are water.
Above-mentioned biological oil removing agent except host, also contains assistant agent.Described assistant agent contains has a liking for oily microorganism 40～90 weight %, synergistic agent 2～12 weight %, nutrition agent 5～15 weight %, surplus for being fit to the carrier of microorganism growth, as wheat bran, cereal or the like.
Above-mentioned biological oil removing agent, described tensio-active agent be glycolipid, contain one or more the miscellany in amino acid lipoid, phospholipid bio-surfactant and cats product, anion surfactant, amphoterics, the nonionogenic tenside; Described inhibitor is a neutral inorganic; Described biological enzyme is a lipase; Described synergistic agent is inorganic salt or sequestrant; Described nutrition agent is multivitamin, mineral substance and the amino acid that is suitable for microorganism growth.
It is above-mentioned that to have a liking for oily microorganism be one or more miscellany in subtilis, Bacillus licheniformis, bacillus megaterium, Bacillus polymyxa, Pseudomonas fluorescens, pseudomonas putida or the xanthin bacterium.
Above-mentioned biological oil removing agent, described tensio-active agent are one or more the miscellany in rhamnolipid, sophorolipid, marine alga glycolipid, lipopeptid, lipoprotein, phosphatidylethanolamine, phosphatidyl glycerol, Soxylat A 25-7, polyoxy third rare ether, alkyl glycoside, alkyltrimethylammonium second lactone, alkyl ether carboxy acid salt, alkyl phosphate and salt thereof, the many alkylsurfuric acids ester sodium salt; Described neutral inorganic is the hydrochloride or the vitriol of basic metal or alkaline-earth metal; Described inorganic salt are nitrate or phosphoric acid salt; Described sequestrant is Citrate trianion or Alpha-hydroxy acrylate.
The above-mentioned flora number of having a liking in the every gram of oily microorganism is not less than 4 * 10
4Individual.
The process metal surfaces smeary method that is used for of the present invention is that to adopt a kind of above-mentioned biological oil removing agent that possesses oil removing simultaneously and decompose the greasy dirt dual-use function will remove that surface and oil contaminant mixes with these two technologies of decomposition greasy dirt be the method for a technology.This method also is initiative in the greasy dirt process field.
Bio-surfactant is the material that is had the surfactivity effect by a class of microorganisms.Compare with synthetic surfactant, a distinguishing feature of bio-surfactant is exactly can be by the microbiological deterioration of occurring in nature, and all as safe as a house to man and nature.Simultaneously, its structure is also more complicated than synthetic surfactant, and molecular weight is higher, have more functional group, and molecular structure has chirality.In view of these characteristics of bio-surfactant, and the continuous enhancing of people's environmental consciousness, the demand to bio-surfactant in industrial application constantly strengthens, and substituting traditional synthetic surfactant simultaneously gradually also becomes a kind of trend.
Synthetic surfactant comprises cats product, anion surfactant, amphoterics, nonionogenic tenside etc.The molecular structure of these tensio-active agents has hydrophilic and lipophilic characteristics simultaneously, all has certain penetrating quality, wettability, emulsifying property, dispersing property and foam performance etc.These characteristics have determined that the Application Areas of the maximum of tensio-active agent is a detergent industry.And in certain washing composition, specifically select which kind of tensio-active agent for use, will depend primarily on the end-use of this washing composition.Such as, for face cleaning milk, should select to be easy to generate a large amount of foams, simultaneously to the tensio-active agent of skin gentleness; And for the washing powder that is used for roller washing machine, should select washability to be difficult for producing too many foamy tensio-active agent by force, simultaneously again.
On our earth, exist the various microorganism species of counting in necessarily.These microbial strainss are decomposed different organic waste in own distinctive mode, thereby obtain oneself to grow, breed and needed goods and materials of other metabolic activity and energy.Meanwhile, these organic waste are finally resolved into water and the carbonic acid gas nontoxic, harmless to the Nature and Man class.On average, microorganism will breed a generation in per 20 to 30 minutes, this means that its quantity also will double.But apparent, in a specific system, microbial numbers can not unrestrictedly increase, and will finally reach a balance.Many factors will influence microbial numbers, such as their variation (organic waste) of food source; The variation of environmental factors is as variation of potential of hydrogen, temperature, humidity, oxygen concn etc.
Based on the desirability to oxygen, microbial strains is divided into aerobic bacteria, anerobe and double oxygen bacterium.Aerobic bacteria needs can grow under the condition of aerobic and breeding; Anerobe survives under the condition of anaerobic; The oxygen bacterium equal growth and breeding well under the situation of aerobic and anaerobic of holding concurrently.Though the bacterial classification that occurring in nature exists also can digest organic waste as food, the time of cost is very long, possible decades even upward century-old.Therefore, can really be used for actual, realize business-like bacterial classification, necessarily at first extract from occurring in nature, then in the laboratory through special screening, and then cultivate the high-performance microorganism species of the extremely well-adapted that comes out.These high-performance microorganism species are more effective than the microbial population that exists in the nature, and they are thousands of times of the occurring in nature flora to the decomposition rate of organic waste, thereby can in short time organic waste be resolved into water in carbonic acid gas.
Biological enzyme is a kind of protein and chemical catalyst, and it can be split into long-chain, complicated organic waste molecule than short and comparatively simple molecule under normal temperature, normal pressure, thereby is easier to by microorganism digestion and absorption.Biological enzyme self is not a life entity, and it can not oneself's growth and breeding as microorganism.After biological enzyme joined in the organic waste, it commenced work without delay, and the macromole of complexity is changed into can be very fast by small molecules microbial consumption, comparatively simple.These small organic molecules are important foodstuffs that microorganism is grown, breeds; And fully-developed microorganism self can produce biological enzyme, thereby keeps a lasting circulating ring.A characteristic the most significant of biological enzyme is a specificity, that is to say that one type biological enzyme can only work to a kind of molecule of particular type.Such as proteolytic enzyme can only be split into the protein of complexity the protein or the amino acid of fritter, and can not fat be worked; Lipase can only decompose animal and plant grease or petroleum-type derivative (mineral oil), and can not work to paper or wood fibre.
Organic waste are the important food sources of microbial strains, particularly as microorganism growth, the needed important carbon source of breeding.In addition, some vitamin b6 usp, mineral substance and amino acid as elements such as VITMAIN B1, riboflavin, calcium, phosphorus, potassium, leucine, tryptophane etc., also are microorganism growth and keep active necessary nutritive substance.And these nutritive substances often do not exist in organic waste.In fact, the shortage of any nutritive substance all may have a strong impact on microbial growth and breeding.Therefore, must in microorganism, add these necessary nutritive substances and can full out decompose, digest organic waste the most efficiently to guarantee microorganism.
For animal and vegetable oil and the petroleum-type derivative mineral wet goods organism based on carbon-chain structure, containing carbon number and be 5～9 hydrocarbon compound is volatile organic matter, and bigger toxicity is arranged when high density; Contain carbon number and be the minimum and readily biodegradable of 10～22 hydrocarbon compound toxicity; Containing carbon number is hypotoxicity more than 22 hydrocarbon compound, low water solubility, and be solid state, not readily biodegradable at normal temperatures; And for phenyl ring class and cycloalkane compound, particularly Fourth Ring and more polycyclic hydrocarbon polymer, as anthracene, pitch, pitch etc., be difficult for most biolytic; The more difficult complete biodegradable of double bond containing hydrocarbon polymer; And the easiest complete biodegradable of saturated alkane of straight chain.
The preparation of biological oil removing agent of the present invention divided for three steps: 1) clear groove: prepare before the biological oil removing agent for the first time, degreasing tank must be removed clean.And water to wash to the pH value be 7 neutral environment; 2) preparation host: each component of host poured in the degreasing tank in proportion stir evenly; 3) add assistant agent: each component of assistant agent is directly joined in the host after the dilution in proportion.After above component interpolation finishes, stir and to start working.
Biological oil removing agent of the present invention can host adds assistant agent to be used together, can host use separately, can also dilute host and use.The Dilution ratio wide range of host, the concentrated solution that need not dilute from direct use is to all can by 1: 100 dilution proportion with water.These depend primarily on different Application Areass, different oil removing modes, different factors such as greasy dirt amount.Such as to some textural anomaly complexity, the heavily contaminated spare and accessory parts that the greasy dirt amount is high can directly use the host concentrated solution or add assistant agent again, need not dilution.And during the greasy dirt on the level and smooth lathe surface of clean surface, host can be diluted that inflammable, explosive gasoline, the diesel oil of replacement uses after 100 times.
The oily microorganism of having a liking in host among the present invention and the assistant agent comprises aerobic bacteria, anerobe and double oxygen bacterium.Can decompose greasy dirt to greatest extent in order to ensure these microbial strainss, can't replenish the degreasing tank of enough air under stagnant condition, working naturally, should be equipped with the air-blowing oxygen supplementing device, to guarantee that working fluid can normally decompose greasy dirt for a long time.
Beneficial effect of the present invention: the present invention is directed to the present situation that existing greasy dirt is handled, successfully developed the new bio degreaser that contains tensio-active agent and have a liking for oily microbial strains first, thereby provide a kind of biological oil removing agent that possesses oil removing and decompose the greasy dirt dual-use function, realization is with oil removing and the purpose of decomposition greasy dirt as an art breading, having reduced processing step, is the progress of a great revolution in this field.Biological oil removing agent of the present invention is applied to the greasy dirt of heavy polluted industry and handles, and compares with existing electrochemical deoiling agent, have energy-conservation, lower consumption, subtract advantages such as dirt, environmental protection.
Description of drawings
Fig. 1 for microbial strains under the no aeration condition to greasy decomposition curve;
Fig. 2 be under the aeration condition microbial strains to greasy decomposition curve.
Embodiment
Embodiment 1
Biological oil removing agent in the present embodiment is made up of host, and its proportioning is as follows:
Phosphatidyl glycerol 4.00%, alkyl glycoside 11.00%, the alkyl ether carboxy acid salt 7.00%, subtilis, Bacillus polymyxa and xanthin bacterium 6.00%, water 72.00%.
1, by this proportioning, in being 3 liters experimental tank, a volume mixes, be mixed with 2 liters of hosts.
2, in the experimental tank of another same volume, add 2 liters of 90# gasoline.
3, the experiment oil in this experiment is Purelube
SAE 30 Non-detergent Oil (production of HAJ Inc. company).
4, whether this experiment can remove 80% as weighing the sign whether degreaser has good oil removing ability with the experiment on the Ha Shi sheet with oil in 5 minutes: in 5 minutes, if use oil more than 80% from the experiment that the Ha Shi sheet is removed, then define this degreaser and have good oil removing ability; In 5 minutes, be less than 80% if remove experiment with oil from the Ha Shi sheet, then define this degreaser and no longer have good oil removing ability.
5, the comparison of biological oil removing agent in the present embodiment and 90# gasoline oil removing ability:
1) get standard Ha Shi sheet, W1 is counted in accurately weighing
2) the Ha Shi sheet after the weighing is taken out after soaking 3 minutes in the oil in experiment, natural air drying is 10 minutes in ventilating kitchen, accurately weighs then, counts W2.
3) the Ha Shi sheet of natural air drying is put into experimental tank and soaked taking-up after 5 minutes, drying is 2 hours in 80 ℃ drying baker; W3 is counted in room temperature cooling weighing after 30 minutes in moisture eliminator then.
4), calculate the oil removing ability of different degreasers according to following formula.
Oil removing ability (%)=((W2-W3)/(W2-W1)) * 100
90# gasoline and the contrast of embodiment 1 biological oil removing agent oil removing ability are as table 1
Table 1, oil removing are relatively
| Oil removing ability (%) | ||
| 90# gasoline | The biological oil removing agent | |
| | 100 | 100 |
| Second day | 82 | 100 |
| The 3rd day | 69 | 100 |
| The | 55 | 100 |
| The 5th day | 41 | 100 |
| The 6th day | 27 | 100 |
| The | 10 | 100 |
6, interpretation of result: comparison shows that of 90# gasoline and biological oil removing agent oil removing ability: in the starting stage, both all have good oil removing ability.But along with the increase of cleaning workpiece, the oil removing ability of 90# gasoline weakens gradually, and its visualize is exactly to build up at its surperficial oil slick to increase; And the biological oil removing agent all shows excellent oil removing performance in whole experiment.This illustrates that on the one hand the tensio-active agent in the biological oil removing agent has good oil removing degreasing power; Illustrate also that on the other hand the adding of efficient microbial strain helps prolonging the work-ing life of degreaser, its visualize is exactly to produce at its no oil slick in surface.
Embodiment 2
Biological oil removing agent in the present embodiment is made up of host, and its proportioning is as follows:
Phosphatidyl glycerol 9.00%, alkyl glycoside 15.00%, the alkyl ether carboxy acid salt 20.00%, Bacillus licheniformis, bacillus megaterium and xanthin bacterium 4.00%, Repone K 0.3%, sodium sulfate 0.2%, water 51.50%.
1, respectively based on the prescription among embodiment 1 and the embodiment 2, each prepares 20 liters of hosts.Pack into then and preserve in shady and cool exsiccant is local in 20 liters the encloses container.
2, the experiment oil in this experiment is Purelube
SAE 30 Non-detergent Oil (production of HAJ Inc. company).
3, on the same day for preparing host, with host and water dilution proportion with 1: 20.Use identical oil removing aptitude tests method among the embodiment 1 then, the oil removing ability of testing two prescriptions respectively, continuously tested 7 days.
4, after 2 weeks of preservation, 4 weeks and 8 weeks, take out embodiment 1 host and embodiment 2 hosts of 2 liters of preservations respectively, with the dilution proportion of water with 1: 20.Use identical oil removing aptitude tests method among the embodiment 1 then, the oil removing ability of testing them respectively, continuously tested 7 days.
Embodiment 1 and the contrast of embodiment 2 biological oil removing agent oil removing abilities are as table 2.
Table 2
| Oil removing ability (%) | ||||||||||||||
| Biological oil removing agent among the embodiment 1 | Biological oil removing agent among the embodiment 2 | |||||||||||||
| Test duration | First day | Second day | The 3rd day | The 4th day | The 5th day | The 6th day | The 7th day | First day | Second day | The 3rd day | The 4th day | The 5th day | The 6th day | The 7th day |
| | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| | 100 | 97 | 95 | 95 | 95 | 90 | 90 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Around | 97 | 92 | 88 | 82 | 75 | 70 | 67 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| The 8th week | 96 | 93 | 87 | 82 | 76 | 70 | 66 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
4, interpretation of result: contain inhibitor and do not contain the test comparison of the biological oil removing agent oil removing ability of inhibitor, clearly show:
(1) in the starting stage (first week), two biological oil removing agent all show excellent oil removing ability, and this should substantially similarly fill a prescription owing to both, just tensio-active agent and the collaborative oil removing of having a liking for oily microbial strains and decomposition smeary ability.
(2) host place after preparing two weeks, all around, eight weeks or longer time, both oil removing capability lists have revealed notable difference.Embodiment 2 prescriptions, after preserving for eight weeks, its excellent oil removing performance is without any variation; And embodiment 1 prescription, in second week after the preparation, its oil removing ability begins to descend, and to all around the time, its oil removing ability reduces to 67% from 100%.
(3) in the biological oil removing agent prescription of embodiment 1, do not add microbial inhibitor, microorganism is in state of activation after meeting water very soon, constantly growth, breeding.And if microorganism does not have suitable food organic waste such as () greases after activating, will be dead gradually, thus lose decomposition smeary ability.This can have influence on the oil removing ability of tensio-active agent in the prescription again.
(4) as seen, inhibitor is extremely important to the quality stability of biological oil removing agent in preparation, transportation and storage process, and also the performance to degreaser has a significant impact.
Embodiment 3
Biological oil removing agent in the present embodiment is made up of host, and its proportioning is as follows:
Host: rhamnolipid 10.00%, Soxylat A 25-7 15.00%, subtilis 5.00%, sodium sulfate 0.10%, sodium-chlor 0.40%, lipase 0.20%, water 69.30%; In degreasing tank, mix.
1, oil removing test: following comparison is under static, dynamic condition, and this biological oil removing agent prescription removes speed oil to different greases from what standard Ha Shi sheet stripped down.
2, the concrete experimental procedure of static test is as follows:
(1) gets 2 liters of hosts, in experimental tank,, be mixed with 60 liters working fluid with 1: 30 ratio dilute with water.
(2) add 10 gram assistant agents in the host after dilution, stirring is prepared into the biological oil removing agent.
(3) get 15 of the Ha Shi sheets of standard specifications, W is counted in accurately weighing
1Gram.
(4) oiling Ha Shi sheet: the one side of selecting the Ha Shi sheet is accurately weighed then with dipping in the oily hairbrush even coating grease that is used to test four times back and forth in the above, counts W
2Gram.
(5) the Ha Shi sheet after the oiling is put into the biological oil removing agent and soak, took out one of Ha Shi sheet in per 10～30 seconds, drying is 2 hours in 80 ℃ drying baker, takes out then, and W is counted in room temperature cooling weighing after 30 minutes in moisture eliminator
3Gram.
(6), calculate various different greases last greasy dirt percentage ratio on the Ha Shi sheet according to following formula.Different greases last greasy dirt percentage ratio (%)=((W on the Ha Shi sheet
3-W
1)/(W
2-W
1)) * 100
Table 3, static oil removing velocity test
| Treatment time (second) | *The WD-40 rust preventive lubricating oil is last greasy dirt percentage ratio (%) on the Ha Shi sheet | **Refining butter last greasy dirt percentage ratio (%) on the Ha Shi sheet | ***Special pure cold press sweet oil last greasy dirt percentage ratio (%) on the |
| 0 | 100 | 100 | 100 |
| 10 | 71 | 85 | 79 |
| 20 | 50 | 73 | 62 |
| 30 | 33 | 66 | 46 |
| 40 | 21 | 58 | 33 |
| 50 | 8 | 50 | 20 |
| 60 | 0 | 43 | 12 |
| 90 | 0 | 24 | 3 |
| 120 | 0 | 10 | 0 |
| 150 | 0 | 0 | 0 |
| 180 | 0 | 0 | 0 |
| 210 | 0 | 0 | 0 |
| 240 | 0 | 0 | 0 |
| 270 | 0 | 0 | 0 |
| 300 | 0 | 0 | 0 |
*The WD-40 rust preventive lubricating oil is produced by WD40 company.
*Refining butter are stained with by the pool and are herded the production of imported oil fat factory.
* *Special pure cold press sweet oil is produced by Lamasia Ma Xier edible oil company.
3, the concrete experimental procedure of dynamic test is as follows:
(1) gets 2 liters of hosts, in experimental tank,, be mixed with 60 liters working fluid with 1: 30 ratio dilute with water.
(2) add 10 gram assistant agents in the host after dilution, stirring is prepared into the biological oil removing agent.
(3) get 15 of the Ha Shi sheets of standard specifications, W is counted in accurately weighing
1Gram.
(4) oiling Ha Shi sheet: the one side of selecting the Ha Shi sheet is accurately weighed then with dipping in the oily hairbrush even coating grease that is used to test four times back and forth in the above, counts W
2Gram.
(5) the Ha Shi sheet after the oiling is put into the biological oil removing agent, took out one of Ha Shi sheet in per 10～30 seconds under the effect of magnetic stirring apparatus (mixing speed is 120 revolutions per seconds), drying is 2 hours in 80 ℃ drying baker, takes out then, W is counted in room temperature cooling weighing after 30 minutes in moisture eliminator
3Gram.
(6), calculate various different greases last greasy dirt percentage ratio on the Ha Shi sheet according to following formula.Different greases last greasy dirt percentage ratio (%)=((W on the Ha Shi sheet
3-W
1)/(W
2-W
1)) * 100
Table 4, dynamic oil removing velocity test:
| Treatment time (second) | *The WD-40 rust preventive lubricating oil is last greasy dirt percentage ratio (%) on the Ha Shi sheet | **Refining butter last greasy dirt percentage ratio (%) on the Ha Shi sheet | ***Special pure cold press sweet oil last greasy dirt percentage ratio (%) on the |
| 0 | 100 | 100 | 100 |
| 10 | 46 | 81 | 67 |
| 20 | 20 | 64 | 43 |
| 30 | 6 | 47 | 25 |
| 40 | 0 | 33 | 14 |
| 50 | 0 | 21 | 6 |
| 60 | 0 | 12 | 0 |
| 90 | 0 | 0 | 0 |
| 120 | 0 | 0 | 0 |
| 150 | 0 | 0 | 0 |
| 180 | 0 | 0 | 0 |
| 210 | 0 | 0 | 0 |
| 240 | 0 | 0 | 0 |
| 270 | 0 | 0 | 0 |
| 300 | 0 | 0 | 0 |
*The WD-40 rust preventive lubricating oil is produced by WD40 company.
*Refining butter are herded imported oil fat factory by Tanggu and are produced.
*Special pure cold press sweet oil is produced by Lamasia Ma Xier edible oil company.
4, interpretation of result: static and dynamic oil removing test clearlys show:
(1) the biological oil removing agent among the present invention can be effectively strips down common petroleum-type derivative, the animal-plant oil of workpiece surface from the metallic surface faster.Under static conditions, this experiment mineral oil in fluid, animal oil and vegetables oil are peeled off required time from the metallic surface fully and are respectively: 60 seconds, 150 seconds and 120 seconds; Under dynamic condition, this experiment mineral oil in fluid, animal oil and vegetables oil are peeled off required time from the metallic surface fully and are respectively: 40 seconds, 90 seconds and 60 seconds.
(2) the biological oil removing agent among the present invention is to different greases, and it removes speed oil difference to some extent: the oil removing of petroleum-type derivative is fastest, secondly is vegetables oil, is animal oil at last.This may with the molecular structure of various greases self, and the physics or the chemical action power that form with workpiece surface are relevant.
(3) under the external synergism of machinery, as magnetic agitation, the speed oil that removes of this biological oil removing agent further significantly improves.Biological oil removing dilution agent liquid is joined processing workpiece in the ultrasonic equipment, and it is also rapid than static oil removing that it removes speed oil.
Embodiment 4:
Biological oil removing agent in the present embodiment is made up of host and assistant agent, and its proportioning is as follows:
Host: sophorose ester 17.00%, alkyl glycoside 14.00%, subtilis, Bacillus licheniformis and bacillus megaterium 6.50%, vitriolate of tartar 0.20%, sodium-chlor 0.60%, lipase 0.40%, water 61.30% mixes in degreasing tank.
Assistant agent: subtilis, Bacillus polymyxa and xanthin bacterium 75.00%, nitrate 8.00% is suitable for multivitamin, mineral substance and the amino acid/11 1.00% of microorganism growth, and wheat bran 6.00% joins in the host.
1, this embodiment investigates to have a liking for oily microorganism to the greasy capacity of decomposition of difference in the biological oil removing agent of the present invention, particularly investigates under aeration condition He under the non-aeration condition and has a liking for the difference of oily microorganism to greasy capacity of decomposition.
2, the experimental technique of no aeration condition in the experimental tank:
(1) gets 2 liters of hosts, in experimental tank,, be mixed with 60 liters biological oil removing agent with 1: 30 ratio dilute with water.
(2) add 6 gram greases in the experimental tank of preparing according to step 1, stir about stops after 5 minutes stirring.
(3) then every 5 minutes, sampling 100 ml samples transfer to pH＜2 with hydrochloric acid soln with the sample pH value value from experimental tank.
(4), thereby determine greasy concentration in the working fluid with Infrared Oil Determination Instrument (model: MAI-50, Jinlin University cygnet Instr Ltd.) working sample.
Use aforesaid method, measure the capacity of decomposition of microbial strains respectively WD-40 rust preventive lubricating oil (petroleum-type derivative), refining butter (animal oil), special pure cold press sweet oil (vegetables oil).
Last greasy density calculating method is as follows in the working fluid:
C
Oil=[XA
2930'+YA
2960'+Z (A
3030'-A
2930'/F)] D/E
In the formula:
C
Oil--the content of-petroleum substance;
X, Y, the correction coefficient of Z, F---instrument;
A
2930', A
2960', A
3030'---be respectively through Magnesium Silicate q-agent handle back measurement solution corresponding wave number (2930,2960,3030cm
-1) the following absorbancy of measuring;
D---extraction solution constant volume thinning ratio;
The concentration ratio that the E---extraction is adopted, the volume ratio of water and organic phase (tetracol phenixin) when promptly measuring
C
Always=[XA
2930+ YA
2960+ Z (A
3030-A
2930/ F)] D/E
In the formula:
C
Always---total oil content amount;
X, Y, the correction coefficient of Z, F---instrument;
A
2930, A
2960, A
3030---be respectively measure solution corresponding wave number (2930,2960,3030cm
-1) the following absorbancy of measuring;
C
Vegetable and animals oils=C
Always-C
Oil
C
Vegetable and animals oils---animal-plant oil content
Through different treatment after the time grease concentration in the working fluid as shown in table 5:
Table 5, the process different treatment grease concentration in the working fluid (mg/litre) after the time
| Treatment time (minute) | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 |
| *WD-40 anti-rust and lubrication oil concentration (mg/litre) | 1000 | 965 | 922 | 892 | 868 | 813 | 615 | 106 | 55 | 38 | 8 | 0 | ||||||
| **Special pure cold press sweet oil concentration (mg/litre) | 1000 | 982 | 972 | 958 | 942 | 910 | 849 | 673 | 458 | 275 | 148 | 129 | 103 | 52 | 11 | 0 | ||
| ***Refining butter concentration (mg/litre) | 1000 | 993 | 987 | 982 | 968 | 951 | 937 | 852 | 748 | 554 | 463 | 418 | 372 | 251 | 123 | 43 | 10 | 0 |
*The WD-40 rust preventive lubricating oil is produced by WD40 company.
*Special pure cold press sweet oil is produced by Lamasia Ma Xier edible oil company.
* *Refining butter are herded imported oil fat factory by Tanggu and are produced.
3, the experimental technique under the aeration condition in the experimental tank:
(1) 2 liter of host with 1: 30 ratio dilute with water, is mixed with 60 liters working fluid in experimental tank.
(2) in experimental tank, add a breather, guarantee that working fluid is in aeration status in the whole experiment.
(3) add 6 gram greases in the experimental tank of preparing according to step 1, stir about stops after 5 minutes stirring.
(4) then every 5 minutes, sampling 100 ml samples transfer to pH＜2 with hydrochloric acid soln with the sample pH value value from experimental tank.
(5), thereby determine greasy concentration in the working fluid with Infrared Oil Determination Instrument (model: MAI-50, Jinlin University cygnet Instr Ltd.) working sample.
Use aforesaid method, measure the capacity of decomposition of microbial strains respectively WD-40 rust preventive lubricating oil (petroleum-type derivative), refining butter (animal oil), special pure cold press sweet oil (vegetables oil).
Process different treatment grease concentration in the working fluid (mg/litre) after the time is as table 6.
Table 6, the process different treatment grease concentration in the working fluid (mg/litre) after the time
| Treatment time (minute) | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 |
| *WD-40 rust preventive lubricating oil (mg/litre) | 1000 | 925 | 863 | 749 | 448 | 73 | 0 | ||||||
| **Special pure cold press sweet oil (mg/litre) | 1000 | 951 | 921 | 908 | 716 | 369 | 238 | 167 | 79 | 11 | 0 | ||
| ***Refining butter (mg/litre) | 1000 | 979 | 963 | 950 | 918 | 659 | 387 | 298 | 267 | 53 | 25 | 9 | 0 |
*The WD-40 rust preventive lubricating oil is produced by WD40 company.
*Special pure cold press sweet oil is produced by Lamasia Ma Xier edible oil company.
* *Refining butter are herded imported oil by Tanggu.
4, interpretation of result: under aeration and the non-aeration condition, the biological oil removing agent clearlys show the test of different grease capacity of decomposition:
Biological oil removing agent among the present invention is contained has a liking for oily microorganism and can effectively decompose various common petroleum-type derivative, animal grease and Vegetable oil lipoprotein.
What the biological oil removing agent among the present invention was contained has a liking for oily microorganism to different greases, and its decomposition rate is difference to some extent: the decomposition rate of petroleum-type derivative is the fastest, secondly is vegetables oil, is animal oil at last.This may be both relevant to various greasy demands with microbial strains self, relevant with the molecular structure of various greases self again.
Under the condition of aeration, the right greasy decomposition rate of microbial strains is significantly strengthened.This explanation aeration helps growth, the breeding of the microbial strains among the present invention, thereby shows excellent degraded, the ability that cuts grease.
Fig. 1 clearly illustrates that in the process that microbial strains cuts grease, grease concentration descends gradually.When microorganism and grease reached about 25～35 minutes duration of contact, remarkable downward trend appearred in grease concentration.After 10～20 minutes, grease concentration begins again to descend comparatively reposefully, until decomposing fully.
Fig. 2 further specifies, and in the process that microbial strains cuts grease, exists the stage that a grease concentration descends rapidly.But under aeration and non-aeration condition, the time of origin surface that grease concentration descends rapidly goes out certain difference: under the non-aeration condition, the time of origin that grease concentration descends rapidly is greatly about about the 25th～35 minute; Under aeration condition, the time of origin that grease concentration descends rapidly is greatly about about the 15th～25 minute.
Under the microbial strains effect, grease concentration descends rapidly may be relevant with growth, the breeding cycle of microbial strains self.In general, microorganism average nursery stage is per 20～30 minutes generation.In nursery stage, microbial strains quantity is doubled and redoubled.This just shows as in nursery stage microorganism and need consume more food (grease) and originate as its breeding and metabolic material and ability, and this is very consistent viewed grease concentration descends rapidly under aeration and non-aeration condition time with us.
From Fig. 2 microbial strains to the decomposition curve of refining butter as can be seen, the concentration of refining butter began to descend rapidly in 20 minutes and 40 minutes.And these two time points are also comparatively identical with the time that microbial strains begins to breed.This illustrates that also the breeding cycle of greasy decomposition rate and microbial strains has very strong dependency.
The time of origin that grease concentration descends rapidly under aeration condition (about the 15th～25 minute) than non-aeration condition under the time of origin (about the 25th～35 minute) that descends rapidly of grease concentration fast, and microorganism is decomposed the used time fully and shortly under also than non-aeration condition (decomposes the WD-40 rust preventive lubricating oil fully as microbial strains, need under the non-aeration condition with 55 minutes greasy under aeration condition; And under aeration condition, only need 30 minutes).This shows that aeration helps the activation of microorganism, growth and breeding, thereby also helps microbial strains to greasy decomposition.
The proportioning of the biological oil removing agent in the present embodiment is as follows:
Host: rhamnolipid 8.00%, sophorolipid 13.00%, alkyl glycoside 11.50%, dodecyl betaine 6.50%, efficient microbial strain 6.00%, vitriolate of tartar 0.20%, sodium-chlor 0.60%, lipase 0.30%, water 53.90% mixes in degreasing tank.
Assistant agent: Bacillus polymyxa, Pseudomonas fluorescens, pseudomonas putida and xanthin bacterium 81.00%, Alpha-hydroxy acrylate 9.00% is suitable for multivitamin, mineral substance and amino acid 8.00%, 2.00% wheat bran of microorganism growth, joins in the host.
1, biological oil removing agent and conventional chemical degreaser are relatively
In the degreasing tank of two same sizes (200 liters), carry out the control experiment that oil removing test and grease decompose test.Wherein the 1# degreasing tank uses strong basicity electrochemical deoiling agent commonly used in a kind of market; The 2# degreasing tank uses the biological oil removing agent among the present invention.In 5 minutes, whether can remove 80% as the standard that exchanges fresh working fluid for the grease on the Ha Shi sheet.Test 30 days statistics such as table 7 continuously:
Table 7, electrochemical deoiling agent and biological oil removing agent performance be (experimental period 30 days) relatively
| 1# degreasing tank (agent of strong basicity electrochemical deoiling) | 2# degreasing tank (biological oil removing agent) | |
| The working fluid temperature (℃) | *60～80 | 20～35 |
| Working fluid pH value | ＞13.0 | ～7.0 |
| Water consumption (liter) | 6,000 | 1,000 |
| Power consumption (degree) | 15,000 | 0 |
| Degreaser consumption (kilogram) | 150 | 50 |
| Change the groove frequency | Changed groove once in 3 days | Need not change groove in 30 days |
| The COD of oily waste liquor | 620 | 110 |
*(20～35 ℃) at normal temperatures, the agent of strong basicity electrochemical deoiling can't reach in 5 minutes at all removes the grease on the Ha Shi sheet 80% effect, must be by means of the supplementary means of heating.
The result clearly the surface, the biological oil removing agent among the present invention energy-conservation, lower consumption, subtract aspects such as dirt, environmental protection, all be far superior to traditional electrochemical deoiling agent.
Claims (10)
1, a kind of biological oil removing agent that is used for metal-processing industry pre-treatment oil removing degreasing is characterized in that containing and has a liking for oily microorganism.
2, biological oil removing agent as claimed in claim 1 is characterized in that being made up of host, and described host contains tensio-active agent 0.1～60 weight %, has a liking for oily microorganism 0.1～30 weight %, and surplus is a water.
3, biological oil removing agent as claimed in claim 2 is characterized in that described host contains tensio-active agent 0.5～60 weight %, has a liking for oily microorganism 0.5～30 weight %, inhibitor 0.1～3.0 weight %, and surplus is a water.
4, biological oil removing agent as claimed in claim 3 is characterized in that described host contains tensio-active agent 1.0～60 weight %, has a liking for oily microorganism 1～30 weight %, inhibitor 0.2～3.0 weight %, biological enzyme 0.01～1.0 weight %, and surplus is a water.
5, biological oil removing agent as claimed in claim 4, it is characterized in that also containing assistant agent, described assistant agent is made up of following component: have a liking for oily microorganism 40～90 weight %, synergistic agent 2～12 weight %, nutrition agent 5～15 weight %, surplus is for being fit to the carrier of microorganism growth.
6,, it is characterized in that described tensio-active agent is glycolipid, contains one or more the miscellany in amino acid lipoid, phosphatide, cats product, anion surfactant, amphoterics, the nonionogenic tenside as claim 2 or 3 or 4 or 5 described biological oil removing agent; Described inhibitor is a neutral inorganic; Described biological enzyme is a lipase; Described synergistic agent is inorganic salt or sequestrant; Described nutrition agent is multivitamin, mineral substance and the amino acid that is suitable for microorganism growth.
7,, it is characterized in that described to have a liking for oily microorganism be one or more miscellany in subtilis, Bacillus licheniformis, bacillus megaterium, Bacillus polymyxa, Pseudomonas fluorescens, pseudomonas putida or the xanthin bacterium as the described biological oil removing agent of claim 1～5; The described flora number of having a liking in the every gram of oily microorganism is not less than 4 * 10
4Individual.
8, biological oil removing agent as claimed in claim 6 is characterized in that described tensio-active agent is one or more the miscellany in rhamnolipid, sophorolipid, marine alga glycolipid, lipopeptid, lipoprotein, phosphatidylethanolamine, phosphatidyl glycerol, Soxylat A 25-7, polyoxy third rare ether, alkyl glycoside, alkyltrimethylammonium second lactone, alkyl ether carboxy acid salt, alkyl phosphate and salt thereof, the many alkylsurfuric acids ester sodium salt; Described neutral inorganic is the hydrochloride or the vitriol of basic metal or alkaline-earth metal; Described inorganic salt are nitrate or phosphoric acid salt; Described sequestrant is Citrate trianion or Alpha-hydroxy acrylate.
9,, it is characterized in that the described flora number of having a liking in the every gram of oily microorganism is not less than 4 * 10 as the described biological oil removing agent of claim 1～5
4Individual.
10, a kind of process metal surfaces smeary method, it is characterized in that adopting a kind of biological oil removing agent as claimed in claim 1 that possesses oil removing simultaneously and decompose the greasy dirt dual-use function will remove that metal surface greasy dirt and these two technologies of decomposition greasy dirt mix is a technology.
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