CN103013635B - Ester type fire-resistant hydraulic fluid and preparation method thereof - Google Patents
Ester type fire-resistant hydraulic fluid and preparation method thereof Download PDFInfo
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- CN103013635B CN103013635B CN201210578091.8A CN201210578091A CN103013635B CN 103013635 B CN103013635 B CN 103013635B CN 201210578091 A CN201210578091 A CN 201210578091A CN 103013635 B CN103013635 B CN 103013635B
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Abstract
The invention relates to an ester type fire-resistant hydraulic fluid. The hydraulic fluid comprises the following raw materials by weight percent: 95-99% of base oil, 1.0-5.0% of diphenol propane, 0.005% of dimethylsilicone fluid or dimethylsilicone grease, 0.05% of tricresyl phosphate, 0.1% of benzotriazole, 100 parts per million (PPM) demulsifying agent T1001 or LZ5957 and 0.2-0.3% of triazole derivative, thiadiazole derivative, N-salicylidene ethylamine, N, N'-bis(salicylidene)ethylenediamine, N, N'-bis(salicylidene)propylene diamine or ethylenediamine tetraacetic acid. A preparation method of the ester type fire-resistant hydraulic fluid comprises the following steps of sufficiently and evenly stirring various materials at room temperature according to a formula, and then filtering. The ester type fire-resistant hydraulic fluid has the beneficial effects that the high temperature use performance of the product is greatly improved, the service life of a hydraulic system and the oil changing period of oils are prolonged, and the ester type fire-resistant hydraulic fluid has a good flame-retardant effect and is safe to use. The preparation method has the advantages that operation is convenient, technology and equipment are simple, energy consumption is low, cost is low, and the like.
Description
Technical field
The present invention relates to a kind of hydraulic efficiency oil and preparation method thereof, relate in particular to a kind of ester type fire resistant hydraulic fluid and preparation method thereof.
Background technology
Hydraulic efficiency oil draw be exactly utilize liquid pressure can the pressure medium that uses of hydraulic efficiency system, in hydraulic efficiency system, play the effects such as transmission ofenergy, system be lubricated, anticorrosion, antirust, cooling.For hydraulic efficiency oil, first should meet hydraulic efficiency plant under working temperature with start-up temperature under requirement to liquid viscosity, because oil viscosity variation is directly relevant with hydraulic operation, transfer efficiency and transmitting accuracy, also require oily viscosity temperature characteristic and shear stability should meet the various demands that different purposes propose.Hydraulic efficiency oil of a great variety, sorting technique is different.For a long time, custom is classified with purposes, as is divided into normal hydraulic oil, antiwear hydraulic oil, fire resistant hydraulic oil etc.
Chinese invention patent application CN1362501 A (open day 2002-08-07) discloses a kind of fire resistant hydraulic fluid, contain emulsifying agent (A), (B), extreme pressure agent (C), rust-preventive agent (D, the water-in-oil composition of reduced pressure distillate pressed oil and water.Wherein emulsifying agent (A) is that by carbon four, C 5 monoolefin polymerizable raw material, to be become the water-in-oil emulsifier of polyolefin type, extreme pressure agent (C) be boric acid ester or boratory a kind of or its compositions of mixtures.The stability of this kind of hydraulic efficiency oil, along with the rising of temperature starts to decline, causes shorten work-ing life; And water can react with hydraulic efficiency oil, form acid, colloid and greasy filth, easily burn into corrosion metals; Water also can be separated out the additive in oil, affects the strainability of oil product; The main impact of water is to reduce oilness, and the minor amount of water being dissolved in hydraulic efficiency oil can be accelerated the wearing and tearing of heavily stressed parts, only from moisture (100 ~ 400) * 10
-6mineral oil rolling bearing fatigue life research show, bearing life has reduced by 30% ~ 70%.
Chinese invention patent application CN200710069908.8A (open day 2008-01-30) discloses by adding nano abrasion-resistant additive and has prepared fire resistant fluid force feed, wherein said nano abrasion-resistant additive is the stable transparent liquid being formed by commercially available nano-metallic copper powder crystal or calcium carbonate surface modifying, dispersion treatment, and cost is higher.Meanwhile, wherein use metal, and metal is at high temperature easily oxidized, and in each, elements such as nitrogen phosphate and sulfur in additive easily cause sour environment through high temperature oxidation, thereby easily make oxidized metallic element exist with the form of metal ion.And the existence of the existence of metal ion, especially cupric ion is often played katalysis to the oxidation of liquefaction oil, thereby greatly accelerated the rotten of liquefaction oil.For this reason, need to find an approach, slow down the existence of this catalysis form.
The Chinese patent application CN102695785A(date of publication 2012-09-26 of Ji Kun ore deposit day stone energy strain formula meeting) a kind of flame retardant hydraulic oil composition is disclosed, it comprises content that (A) choosing is freely characterised in that unsaturated fatty acids in the lipid acid that forms ester moiety separately than being more than 20 % by mole to be at least one base oil of the group of synthetic ester below 1.0mgKOH/g and composition with the acid number of ester moiety, and (B) with respect to total composition, is the alkyl thiadiazoles of the amount of 0.001-1.0 quality %.Preferably, described composition comprise extraly (C) with respect to total composition, be 0.001-5.0 quality % amount two (4-dialkylamino phenyl) methane and/or (D) with respect to total composition, be at least one triazole compounds of group of the free triazole derivative of choosing, benzotriazole derivatives and the tolytriazole derivative composition of the amount of 0.0001-1.0 quality %.It has gratifying anti-oxidant activity, the excellence of zinc stripping is suppressed to active and good attrition resistance, but that unsaturated fatty acids and ester thereof are at high temperature easy to is oxidized, causes its work-ing life relatively not long.
Summary of the invention
The object of the invention is to overcome the defect of above-mentioned prior art, provide that a kind of preparation technology is simple, cost is low, the ester type fire resistant hydraulic fluid of stable performance.The base oil that this hydraulic efficiency oil is 95-99% by mass ratio, the diphenylol propane of 1.0-5.0%, 0.005% methyl-silicone oil or methyl-silicone oil ester, 0.05% tritolyl phosphate, 0.1% benzotriazole, emulsion splitter T1001 or the LZ5957 of 100PPM, and the sub-Diaethylamin Salicylas of the 124 Triazole derivative of 0.2-0.3%, thiadiazoles derivative, N-, N, the sub-bigcatkin willow quadrol of N`-bis-, N, the sub-bigcatkin willow propylene diamine of N`-bis-or ethylenediamine tetraacetic acid (EDTA) form.
Wherein said base oil is trihydroxymethylpropanyl ester, pentaerythritol ester or the DOPCP of animal or plant oil; Wherein said vegetables oil refers to saturated vegetable oil or the vegetables oil reaching capacity after hydrogenation, such as erucic acid, eleostearic acid, Viscotrol C, or hydrogenated groundnut, hydrogenated soybean oil, hydrogenation oleum lini, hydrogenated castor oil, hydrogenated rapeseed oil etc.
The synthesis technique of above-mentioned ester type fire resistant hydraulic fluid can carry out as follows:
By formula ratio, base oil, diphenylol propane, methyl-silicone oil or methyl-silicone oil ester, tritolyl phosphate, benzotriazole, emulsion splitter T1001 or LZ5957 are added in still, at room temperature stir 20-60 minute; Then the sub-Diaethylamin Salicylas of 124 Triazole derivative, thiadiazoles derivative, N-, the N that add formula ratio, the sub-bigcatkin willow quadrol of N`-bis-, N, the base oil wetting liquid of the sub-bigcatkin willow propylene diamine of N`-bis-or ethylenediamine tetraacetic acid (EDTA).Stir, filter, viscosity, flash-point, copper corrosion and the outward appearance of 40 ℃, 100 ℃, qualified rear packing are surveyed in sampling.
Described base oil wetting liquid is by the sub-Diaethylamin Salicylas of 124 Triazole derivative, thiadiazoles derivative, N-, N, and the sub-bigcatkin willow quadrol of N`-bis-, N such as add at the base oil of quality in the sub-bigcatkin willow propylene diamine of N`-bis-or ethylenediamine tetraacetic acid (EDTA), stir and get final product.
Product is that to take extraordinary ester class oil be base oil, adds multifunction additive modulation and forms.Use temperature scope is-20 ℃-150 ℃.
Compare with traditional technology, technical scheme of the present invention has the feature of following excellence:
1. the special additive in this product can form inner complex with oil product Zhong active metal ion (copper, iron, nickel, manganese), suppress the catalysed oxidn of metal ion to oil product, strengthens the stability of oil product, prevents that colloid from producing, and extends oil product storage period.
2. effectively extend the work-ing life of liquefaction oil, and can improve the antioxidant effect of oxidation inhibitor, the addition of reduction oxidation inhibitor.
3. flame retardant effect is good: flash-point reaches more than 270 ℃, and burning-point is more than 300 ℃.
4. oil draining period significant prolongation, oil product use cost reduces.Extend the work-ing life of lubricating oil, oil for circulation, originally changes once half a year, within present 2 years, changes once.
5. preparation technology is simple, and equipment is simple, and cost is low, suitable large production.Preparation process of the present invention is reacted raw material directly into still, saved the techniques such as multi-step heating, has simplified operational path, has reduced greatly cost.
The kinematic viscosity of production of the present invention institute ester type fire resistant hydraulic fluid (40 ℃, mm
2/ S) between 40 to 50, flash-point reaches more than 270 ℃, and burning-point reaches more than 300 ℃, and pour point is below-35 ℃; By menifold fire test, copper corrosion is one-level, can directly be widely used in the high temp fire of the industries such as metallurgy, electric power, coal or has the fluid power transmission of the hydraulic efficiency system of working under naked light hazardous environment and lubricate.
Embodiment
Following content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace; all should be considered as belonging to protection scope of the present invention; the present invention uses but the technology and the indexing section that do not describe, is prior art.
Kinematic viscosity reflects the internal friction of oil product, means an index of oil product oiliness and mobility.Under a certain constant temp, the liquid of measuring certain volume flows through the time of a glass capillary tube viscometer of having demarcated under gravity, and the capillary constant of viscometer and the product of flowing time, be the kinematic viscosity of measuring liquid at this temperature.The kinematic viscosity test of product of the present invention adopts " GB/T 265 petroleum products kinematic viscosity assay methods and kinetic viscosity computing method ".
Viscosity index represents the temperature variant degree of oil viscosity.Viscosity index represents that the kinematic viscosity of petroleum products varies with temperature an about definite value of this feature, and the kinematic viscosity value by 40 ℃ and 100 ℃ calculates.GB/T 1995, ASTM D2270 petroleum products viscosity index computing method.
Open flash point means the index of oil evaporation and security.Sample is packed into test glass to the groove of regulation.The first temperature of rising sample, then slowly intensification rapidly.When approaching flash-point, constant heating rates sintering.At specific time interval, with a little test flame, cross sidewards test glass, make the minimum temperature of the steam scintillation on specimen surface, as flash-point.The cup of experiment is open cup.GB/T 3536, ASTM D92 Flash Point for Petroleum Products and determination of ignition point method (opening agar diffusion method).
Pour point is weighed the index sample of lubricating oil low-temperature fluidity after preheating, cooling under fixing speed, at interval of 3 ℃ of mobility that check a sample. and record is observed the mobile minimum temperature of sample energy as pour point.GB/T 3535, ASTM D97 petroleum sneeze-point assay method.
Menifold fire test is to weigh the fire retardancy of hydraulic efficiency oil.Testing experiment of the present invention adopts standard SH/T0567.
Copper corrosion: the oxidation of oil product or additive usually can cause the corrosion of steel and other non-ferrous metal.A copper sheet having polished is immersed in a certain amount of sample, and by product standard requirement, is heated to the temperature of appointment, keep the regular hour, during end cycle to be tested, take out copper sheet, after washing, compare with corrosion Standard colour board, determine corrosion level.GB/T 5096, ASTM D130 petroleum products copper strip test method.
Liquid phase corrosion represents that lubricating oil opposing water and steam forms corrosion ability in metallic surface mixes 300ml sample and 300ml distilled water or synthetic sea water, and columniform test rod iron is all immersed in wherein, at 60 ℃, stirs.Conventionally the test period is 24h, but based on contract both sides' requirement, and the time is changeable.Test period finishes vestige and the degree of rear observation sample rod iron rust.GB/T 11143, and ASTM D665 inhibiting mineral oil is rustless property laboratory method under water exists.
embodiment 1
By 948kg Viscotrol C trihydroxymethylpropanyl ester, the diphenylol propane of 50kg, 0.05kg methyl-silicone oil ester, 0.5kg tritolyl phosphate, 1kg benzotriazole, the emulsion splitter T1001 of 0.1kg adds in still, at room temperature stirs 20 minutes; Then add the sub-Diaethylamin Salicylas of N-by 2kg at room temperature to mix gained base oil wetting liquid with the Viscotrol C trihydroxymethylpropanyl ester of 2kg, stir, filter, viscosity, flash-point, copper corrosion and the outward appearance of 40 ℃, 100 ℃, qualified rear packing are surveyed in sampling.
embodiment 2
By 958kg hydrogenated castor oil pentaerythritol ester, the diphenylol propane of 30kg, 0.05kg methyl-silicone oil, 0.5kg tritolyl phosphate, 1kg benzotriazole, the emulsion splitter T1001 of 0.1kg adds in still, at room temperature stirs 30 minutes; Then add the N by 2.2kg, the sub-bigcatkin willow quadrol of N`-bis-at room temperature mixes gained base oil wetting liquid with the hydrogenated castor oil pentaerythritol ester of 2.2kg, stirs, and filters, viscosity, flash-point, copper corrosion and the outward appearance of 40 ℃, 100 ℃, qualified rear packing are surveyed in sampling.
embodiment 3
By 968kg hydrogenated rapeseed oil DOPCP, the diphenylol propane of 20kg, 0.05kg methyl-silicone oil, 0.5kg tritolyl phosphate, 1kg benzotriazole, the emulsion splitter T1001 of 0.1kg adds in still, at room temperature stirs 40 minutes; Then add the N by 2.4kg, the sub-bigcatkin willow propylene diamine of N`-bis-at room temperature mixes gained base oil wetting liquid with the hydrogenated rapeseed oil DOPCP of 2.4kg, stirs, and filters, viscosity, flash-point, copper corrosion and the outward appearance of 40 ℃, 100 ℃, qualified rear packing are surveyed in sampling.
embodiment 4
By 968kg Viscotrol C trihydroxymethylpropanyl ester, the diphenylol propane of 10kg, 0.05kg methyl-silicone oil, 0.5kg tritolyl phosphate, 1kg benzotriazole, the emulsion splitter T1001 of 0.1kg adds in still, at room temperature stirs 40 minutes; Then add by the ethylenediamine tetraacetic acid (EDTA) of 2.6kg and the Viscotrol C trihydroxymethylpropanyl ester of 2.6kg and at room temperature mix gained base oil wetting liquid, stir, filter, viscosity, flash-point, copper corrosion and the outward appearance of 40 ℃, 100 ℃, qualified rear packing are surveyed in sampling.
embodiment 5
By 977kg hydrogenated castor oil pentaerythritol ester, the diphenylol propane of 10kg, 0.05kg methyl-silicone oil, 0.5kg tritolyl phosphate, 1kg benzotriazole, the emulsion splitter T1001 of 0.1kg adds in still, at room temperature stirs 50 minutes; Then add by the ethylenediamine tetraacetic acid (EDTA) of 2.6kg and the hydrogenated castor oil pentaerythritol ester of 2.6kg and at room temperature mix gained base oil wetting liquid, stir, filter, viscosity, flash-point, copper corrosion and the outward appearance of 40 ℃, 100 ℃, qualified rear packing are surveyed in sampling.
embodiment 6
By 987kg hydrogenated rapeseed oil DOPCP, the diphenylol propane of 10kg, 0.05kg methyl-silicone oil, 0.5kg tritolyl phosphate, 1kg benzotriazole, the emulsion splitter LZ5957 of 0.1kg adds in still, at room temperature stirs 60 minutes; Then add the N by 3kg, the sub-bigcatkin willow propylene diamine of N`-bis-at room temperature mixes gained base oil wetting liquid with the hydrogenated rapeseed oil DOPCP of 3kg, stirs, and filters, viscosity, flash-point, copper corrosion and the outward appearance of 40 ℃, 100 ℃, qualified rear packing are surveyed in sampling.
embodiment 7
Products obtained therefrom in each embodiment 1-6 is detected by above-mentioned standard of the present invention, and test result is as follows:
Claims (1)
1. the preparation method of an ester type fire resistant hydraulic fluid, the method comprises the following steps: the emulsion splitter T1001 of the diphenylol propane of 948kg Viscotrol C trihydroxymethylpropanyl ester, 50kg, 0.05kg methyl-silicone oil ester, 0.5kg tritolyl phosphate, 1kg benzotriazole, 0.1kg is added in still, at room temperature stir 20 minutes; Then add the sub-Diaethylamin Salicylas of N-by 2kg at room temperature to mix gained base oil wetting liquid with the Viscotrol C trihydroxymethylpropanyl ester of 2kg, stir, filter, sampling detects qualified rear packing and makes described ester type fire resistant hydraulic fluid.
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| JP5301226B2 (en) * | 2007-09-26 | 2013-09-25 | 昭和シェル石油株式会社 | Hydraulic oil for construction machinery |
| CN101664673B (en) * | 2009-09-25 | 2011-08-03 | 天津大学 | Molecular sieve adsorbent for removing metal ions in jet fuel and preparation method |
| CN101812349B (en) * | 2010-05-11 | 2013-05-01 | 上海海都化学科技有限公司 | Lubricating oil and grease base oil, and preparation method and applications thereof |
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