• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An agent for improving the flow properties of middle distillates, said agent being a solution consisting essentially of a solvent having a boiling point of at least 50 DEG C. at 760 mm Hg and a graft copolymer formed from (a) as the grafting monomer, 20 to 80 percent by weight of an ester of methacrylic acid and a C8 to C15 alkanol, and (b) as the backbone polymer, from 80 to 20 percent by weight of an ethylene/vinyl acetate copolymer or of a terpolymer formed from ethylene, vinyl acetate, and a substituted olefin having form 3 to 50 carbon atoms, said backbone polymer having a reduced viscosity of 6 to 50 ml/g and degree of branching between 3 and 15 CH3 groups per 100 CH2 groups.
    公开号:SU1657065A3
    申请号:SU884356063
    申请日:1988-07-08
    公开日:1991-06-15
    发明作者:Mikhael Myuller；Khorst Penneviss
    申请人:Roehm Gmbh；
    IPC主号:
    专利说明:

    The invention relates to oil pumping. The purpose of the invention is improving the effectiveness of the tool. The latter contains a liquid carrier and 30-75 wt.% Grafted polymer containing 33.3-66.7 wt.% Su-C15-alkyl methacrylate and up to 100% of a copolymer of ethylene and vinyl acetate. Aromatics and aliphatic distillates, both pure and solvent mixtures, can be used as hydrocarbons. In this case, when the content of the polymer in the medium is 75 wt.%, It is 17700-56000 mPa s and the solidification point is 4-5 ° C. 3 tab.
    The invention relates to a means for improving the flow properties of hydrocarbon mixtures, in particular to a means for improving the flow properties * of hydrocarbon fractions with a boiling range of 170-360 ° C.
    The purpose of the invention is to improve the efficiency of improving the fluid properties of hydrocarbon fractions with a boiling range of 170-360 ° C.
    The composition of the tool used the following components.
    The liquid carrier is inert to radial reactions and is selected from the group consisting of hydrocarbons or substances that improve the cetane number, in particular from the group of alkyl nitrates and alkyl diglycol nitrates, such as, for example, alkyl nitrates with 5-8 carbon atoms, in particular primary amyl nitrate, cyclohexyl nitrate. isooctyl nitrate, or nitrate
    ethyldiglycol, or mixtures thereof, or mixtures thereof with hydrocarbons.
    Aliphatic and aromatic distillates can be mentioned as hydrocarbons, namely, both pure solvents and mixtures, for example, on an aliphatic basis (n- and iso-alkanes), as well as aromatic mixtures or reforming products with a viscosity of up to 2 nm 2 / s, in particular, kerosene with a boiling range of 180-210 ° C.
    A copolymer of ethylene and vinyl acetate, preferably with a vinyl acetate content of 28-40 wt.%, In particular 28-35 wt.%, May contain a third monomeric component (ternary polymer). Further substituted olefins, in particular dienes, such as isobutylene, diisobutylene, are suitable as the third component. It is advisable to use copolymers of ethylene and vinyl acetate with relatively
    1657065 AZ
    3
    1657065
    four
    low polar weight in the range from 400 to 10000, in particular 500 to 5000 (determined by osmometry, in particular gas-phase osmometry or by gel chromatography).
    It is advisable to use copolymers of ethylene and vinyl acetate with a viscosity in xisol at 25 ° C. The degree of separation is preferably 3-15, in particular 6-9 methyl groups per 100 methylene groups. The determination is carried out in a known manner by NMR spectroscopy.
    The preparation of the copolymer is carried out in a known manner, for example, by copolymerizing monomers in an autoclave at a temperature between 80 and 150 ° C and a pressure of between 5 and 15 MPa in the presence of radical-forming initiators, such as peroxides, and in a suitable inert organic solvent.
    The grafting of alkyl methacrylate onto the copolymer is also carried out in a known manner.
    The tool according to this invention is prepared by simply displacing the graft polymer and the liquid carrier, the latter being added in the required amount already upon receipt of the graft polymer.
    Determination of the actual viscosity / Act is carried out in a rotational viscometer according to the industrial standard of Germany, DIN 53 018, and the determination of the characteristic viscosity - according to the industrial standard of Germany DIN 1342 or SOD 1628-6.
    The point of blockage of the filter in a cold state is determined according to the industrial standard of Germany DIN 51 428. It represents the limit value of filterability. Pour point, i.e. the lowest temperature at which the mineral oil or distillate still has flowing properties is determined according to industry standard FRG DIN 51597 or American standard ASTM D-97,
    Example 1. In a round flask equipped with a saber-shaped stirrer and reflux condenser, 750 g of ternary polymer based on ethylene, vinyl acetate and diisobutylene (ratio 61:28:11) are dissolved in 750 g of kerosene (180-210 ° C) by stirring at 90 ° C. , characteristic viscosity (toluene, 25 ° С) = 16 ml / g). Then, a mixture of 750 g of isodecyl methacrylate and 11.25 g of tert-butyl peroctoate at 90 ° C for 2 hours is added to this solution under a nitrogen atmosphere with a dosing pump. At the end of the addition, another 1.5 g of tert-butyl peroctoate are added. The total duration of polymerization is 16 hours.
    A whitish-cloudy color improving agent is obtained, containing 67% polymer and having a viscosity of 2600 mPa.s at 25 ° C or 890 mPa s at 40 ° C. The solidification point lies at -10 ° C.
    Example 2. Example 1 is repeated, with the difference that 1500 g of isodecyl methacrylate and 22.5 g of tert-butyl peroctoate are added to a solution of a terpolymer based on ethylene, vinyl acetate and diisobutylene over 2 hours.
    A whitish-cloudy color improving agent is obtained, containing 75% polymer and having a viscosity of 600 MPa s at 25 ° C or 2700 mPa-s at 40 ° C.
    The solidification point lies at + 3 ° С.
    Example 3. Repeat example 2 with the difference that 750 g of a copolymer of ethylene and vinyl acetate (vinyl acetate content 32 wt.%, Characteristic viscosity (toluene, 25 ° C) = 18.8 ml / g) is dissolved in 750 g of kerosene.
    A whitish-cloudy color improving agent is obtained, containing 75% by weight of polymer and having a viscosity of 36,500 mPa s (at 25 ° C).
    The solidification point lies at + 4 ° C.
    Examples 4-8. Repeat example 2 with the difference that various methacrylates are grafted onto a copolymer of ethylene and vinyl acetate in a weight ratio of 2: 1.
    The results are presented in table. one"
    The flow-improving efficiency is as follows. The known means and the means for improving the flow properties in the quantities given in Table 2, given in examples 1-8, are added to the hydrocarbon fractions designated as DK1 and DK2. In this case, the point of filter plugging in the cold state is determined.
    Hydrocarbon fraction DK1 is the fuel oil of the brand EL of the foreign company Texaco AG, Germany, and the hydrocarbon fraction DK2 is the diesel fuel of the foreign company Gulf AG, Germany (see Table 2).
    Comparative experience.
    To the hydrocarbon fractions DC1 and DC2 add:
    a) a tool consisting of 75 wt.%
    ternary polymer composed, may. %: ethylene 65, vinyl acetate 28 and millislaut 7 (according to
    example 1 and kerosene 25;
    five
    1657065
    6
    b) a product consisting of 75% by weight of a ternary polymer consisting, in wt.%: ethylene 60, vinyl acetate 20 and vinyl laurate 20 (according to example 2) and kerosene 25.
    Means A and B are added in an amount to provide a polymer content in hydrocarbon fractions equal to 37.5 ppm. in the case of DC1 and 100 h / mil in the case of DC2.
    At the same time determine the following point of blocking the filter in a cold state: -3 and -8 ° C, respectively, in the case of the means A, a -2 and -9 ° C, respectively, in the case of the means B.
    Example 9. Example 1 is repeated with the difference that the grafted polymer is diluted with xylene to 30% by weight and the resulting product is added to the hydrocarbon fractions DK1 and DK2 in an amount to ensure that the content of polymer in them is 37.5 ppm. in the case of DC1 and 100 h / mil in the case of DC2. The data on the filter plugging point in a cold state are summarized in the following table. 2
    Example 10. Repeat example 2 with the difference that the grafted polymer is diluted with xylene to 30 wt.% And the resulting tool is added to the hydrocarbon fractions DK1 and DK2 in an amount to ensure that the content of the polymer is equal to 37.5 ppm. in the case of DC1 and 100 h / mil in the case of DC2. The data on the filter plugging point in a cold state are summarized in the following table. 2
    Example 11. Repeat example 3 with the difference that the grafted polymer is diluted with xylene to 30 wt.% And the resulting agent is added to the hydrocarbon fractions DK1 and DK2 in an amount to ensure that the content of the polymer is equal to 37.5 ppm. in the case of DC1 and 100 h / mil. in the case of DC2. The data on the filter plugging point in a cold state are summarized in the following table.
    Example 4, Example 4 is repeated, with the difference that the grafted polymer is diluted with xylene to 30% by weight and the product obtained is added to the hydrocarbon fractions DK1 and DK2 in an amount providing for a polymer content of 37.5 h / mil in the case of DC1 and 100 h / mil. in the case of DC2. The data on the filter plugging point in a cold state are summarized in the following table.
    Example 13. Repeat example 5 with the difference that the grafted polymer is diluted with xylene to 30 wt.% And the resulting agent is added to the hydrocarbon
    fractions DK1 and DK2 in an amount to ensure the content of polymer in them is equal to 37.5 ppm. in the case of DC1 and 100 h / mil, in the case of DC2. The data on the filter plugging point in a cold state are summarized in the following table.
    Example 14. Repeat example 6 with the difference that the grafted polymer is diluted with xylene to 30 wt.% And the resulting agent is added to the hydrocarbon fractions DK1 and DK2 in an amount to ensure that the content of polymer in them is 37.5 ppm. in the case of DC1 and 100 h / mil. in the case of DC2. The data on the filter plugging point in a cold state are summarized in the following table.
    Example 15. Repeat example 7 with the difference that the grafted polymer is diluted with xylene to 30 May. % and the resulting tool is added to the hydrocarbon fractions DK1 and DK2 in an amount to ensure that the content of polymer in them is equal to 37.5 ppm. in the case of DC1 and 100 h / mil, in the case of DC2. The data on the filter plugging point in a cold state are summarized in the following table.
    Example 16. Repeat example 8 with the difference that the grafted polymer is diluted with xylene to 30 wt.% And the resulting agent is added to the hydrocarbon fractions DK1 and DK2 in an amount to ensure that the content of polymer in them is 37.5 ppm. in the case of DC1 and 100 h / mil. in the case of DC2. The data on the filter plugging point in a cold state are summarized in Table. 3
    Comparison of data table. 1-2 with comparative data suggests that a positive effect is achieved when using the agent according to the invention, containing 30% by weight of the grafted polymer.
    权利要求:
    Claims (1)
    [1]
    Claim
    Means to improve the fluid properties of hydrocarbon fractions with a boiling point of 170-360 ° C based on a liquid carrier with the addition of a polymer with units of ethylene, vinyl acetate and alkyl methacrylate, characterized in that, in order to increase the efficiency of the agent, it contains a grafted polymer containing 33.3-66.7 wt.% Suu ~ C15 alkyl methacrylate and up to 100 wt.% Copolymer of ethylene and vinyl acetate in the following ratio, wt.%:
    Grafted polymer 30-75
    . Carrier Up to 100
    7
    1657065
    eight
    Table 1
    Example No. Methacrylates (MA) Polymer content in improving flowableproperties of the tool. % Viscosity, mPas Point of solidification, ° С Colour four C12-14-Ma unbranched 75 17800 -2 Whitish five 55% C124% C14iso-Syu-MA + 2-dimethylamino-ethyl-MA = 90 + 10 75% 56000 +5 Whitish 6 n-Syu-MA 75% 17700 +4 Also 7 I30-C13-MA 75% 46600 +5 Also eight With 12-15MA 60% branched alkyl residue 75% 5800 +2 Also
    Table 2
    Remedy for example DK1 (+2) * 37.5 h / mil. ** DK2 (-2) 100 p / m *** one -ten -15 2 -13 -18 3 -12 -sixteen four -14 -14 five -ten -15 6 -eleven -17 7 -eight -15 eight -13 -18
    * The point of blocking the filter in a cold state without the addition of a means of improving its flow properties, ° C;
    ** The amount of polymer contained in the tool;
    *** Agent consisting of 75 wt.% Ethylene copolymer and
    vinyl acetate and 25 wt.% kerosene.
    9
    1657065
    ten
    T a b c a 3
    Example No. The tool in the example, No. DK1 37.5 p / m DK2 100 p / m BUT 9 -ten -15 B ten -13 -18 AT eleven -12 -sixteen R 12 -14 -14 D 13 -ten -15 E 14 -eleven -17 F 15 -eight -15 3 sixteen -13 -18
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1657065A3|1991-06-15|Agent for improving fluidity of hydrocarbone fractions
    RU2156277C2|2000-09-20|Double-action additive, additive composition, and fuel
    JP4299389B2|2009-07-22|Process for producing ethylene copolymer and process for using it as additive in mineral oil and mineral oil distillate
    US3951929A|1976-04-20|Polyacrylates and waxy residual fuel compositions thereof
    US5039432A|1991-08-13|Copolymers of | acrylic acid esters as flow improvers in oils
    CA1238142A|1988-06-14|Preparation of ethylene terpolymers
    KR100567935B1|2006-07-06|Fuel Oil Compositions Comprising Lubricated Hydroxyl-Containing Ethylene Copolymers
    US4178950A|1979-12-18|Residual fuel compositions with low pour points
    US4862908A|1989-09-05|Mineral oils and mineral oil distillates having improved flowability and method for producing same
    EP0187488A1|1986-07-16|Middle distillate fuel flow improver composition
    KR20090089352A|2009-08-21|Cold flow improver
    AU624965B2|1992-06-25|Process for improving the fluidity of mineral oils and mineral oil distillates
    EP1391498A1|2004-02-25|Fluidity improver and fuel oil composition
    US7067599B2|2006-06-27|Fuel oil additives and compositions
    CA2020571A1|1991-01-07|Additives for diesel fuel
    DE19927561C1|2000-12-14|Use of oil-soluble copolymers are derived from hydroxy-functional and hydrophobic ethylenically unsaturated monomers to improve the lubricating properties of low-sulfur middle distillates
    US3773478A|1973-11-20|Middle distillate fuel containing additive combination to increase low temperature flowability
    EP0239320A2|1987-09-30|Liquid fuel compositions
    EP0524977A1|1993-02-03|Fuel oil additives and compositions.
    EP0184048B1|1988-10-05|Terpolymers of ethylene, vinyl acetate and isobutylene useful as pour point depressants in distillate oils
    EP0255345A1|1988-02-03|Liquid fuel compositions
    EP0890633B1|2004-03-17|Use of copolymers of ethylene and unsaturated carboxylic esters in middle distillates to improve cold flow properties
    EP0120512A2|1984-10-03|A wax-containing crude oil or fuel oil comprising a pour point depressant
    EP0673990A1|1995-09-27|Hydrocarbon oil compositions having improved cold flow properties
    US5681359A|1997-10-28|Ethylene vinyl acetate and isobutylene terpolymer as a cold flow improver for distillate fuel compositions
    同族专利:
    公开号 | 公开日
    GB2207924B|1991-11-27|
    NL8801477A|1989-02-16|
    GB8818001D0|1988-09-01|
    US4932980A|1990-06-12|
    DE3725059A1|1989-02-09|
    FR2618792A1|1989-02-03|
    JP2545585B2|1996-10-23|
    IT1223730B|1990-09-29|
    GB2207924A|1989-02-15|
    BE1000546A3|1989-01-24|
    JPS6448892A|1989-02-23|
    IT8867713D0|1988-07-27|
    FR2618792B1|1993-05-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3048497A|1958-02-18|1962-08-07|Moller Goran August|Process of coating base metals with aluminum|
    NL262249A|1960-03-11|
    US3404091A|1966-03-21|1968-10-01|Exxon Research Engineering Co|Oleaginous compositions|
    NL134313C|1966-06-01|
    GB1112808A|1966-06-20|1968-05-08|Exxon Research Engineering Co|Improved middle distillate fuel composition|
    DE1914756C3|1968-04-01|1985-05-15|Exxon Research and Engineering Co., Linden, N.J.|Use of ethylene-vinyl acetate copolymers for petroleum distillates|
    DE1914765C2|1969-03-22|1982-11-11|Teldix Gmbh, 6900 Heidelberg|Electrical control system for an anti-lock vehicle brake system|
    CA1000501A|1972-06-21|1976-11-30|Levi C. Parker|Low pour point fuel compositions|
    DE2407158B2|1974-02-15|1976-01-15|Basf Ag, 6700 Ludwigshafen|PETROL DISTILLATE FUELS OR FUEL|
    US4178950A|1978-10-10|1979-12-18|Texaco Inc.|Residual fuel compositions with low pour points|
    DE3008748A1|1980-03-07|1981-09-24|Bayer Ag, 5090 Leverkusen|METHOD FOR PRODUCING ETHYLENE VENYL ESTER GRAFT POLYMER DISPERSIONS|
    JPS5770168A|1980-10-20|1982-04-30|Kazuo Saotome|Hot-melt adhesive composition|
    JPH0251475B2|1982-03-30|1990-11-07|Nippon Synthetic Chem Ind|
    JPH0710900B2|1982-06-18|1995-02-08|エクソンリサーチアンドエンヂニアリングコムパニー|Fluidity improver for middle distillate fuel oil|
    JPS6017476B2|1982-09-20|1985-05-02|Nippon Synthetic Chem Ind|
    JPH0262457B2|1982-09-21|1990-12-25|Fujitsu Ltd|
    JPH032400B2|1983-04-08|1991-01-14|Nippon Synthetic Chem Ind|
    FR2572410B1|1984-10-25|1987-09-04|Elf Aquitaine|ETHYLENE GRAFT COPOLYMERS USED IN PARTICULAR AS ADDITIVES FOR THE INHIBITION OF PARAFFIN DEPOSITION IN CRUDE OILS AND COMPOSITIONS CONTAINING THE OILS AND ADDITIVES|
    FR2572413B1|1984-10-31|1986-12-12|Beck Sa Leon|INFLATABLE PRODUCTS AND MOISTURE RETENTERS BASED ON POLYACRYLAMIDE AND FERTILIZER PRODUCTS|
    CA1263663A|1984-12-06|1989-12-05|Joseph Fischer|Terpolymers of ethylene, vinyl acetate andisobutylene useful as pour point depressants indistillate oils|
    US4746327A|1985-03-25|1988-05-24|Standard Oil Company |Ethylene-unsaturated, ester-substituted olefin terpolymer flow improvers|
    DE3616056A1|1985-05-29|1986-12-04|Hoechst Ag, 65929 Frankfurt|USE OF ETHYLENE TERPOLYMERISATES AS ADDITIVES FOR MINERAL OILS AND MINERAL OIL DISTILLATES|
    DE3613247C2|1986-04-19|1995-04-27|Roehm Gmbh|Concentrated emulsions of ethylene-vinyl acetate copolymers, processes for their preparation and their use as pour point improvers|KR920005384B1|1988-11-21|1992-07-02|미쓰이세끼유 가가꾸고오교오 가부시끼 가이샤|Modified polyolefin particles and process for preparation thereof|
    DE3905681A1|1989-02-24|1990-08-30|Basf Ag|CONCENTRATED MIXTURES OF GAPPOPOLYMERISATS FROM ESTERS OF UNSATURATED ACIDS AND ETHYLENE-VINYLESTER COPOLYMERISATS|
    DE3922146A1|1989-07-06|1991-01-17|Roehm Gmbh|ADDITIVES FOR DIESEL FUEL|
    DE4241948A1|1992-12-12|1994-06-16|Hoechst Ag|Graft polymers, their preparation and use as pour point depressants and flow improvers for crude oils, residual oils and middle distillates|
    US5681359A|1996-10-22|1997-10-28|Quantum Chemical Corporation|Ethylene vinyl acetate and isobutylene terpolymer as a cold flow improver for distillate fuel compositions|
    US6203583B1|1999-05-13|2001-03-20|Equistar Chemicals, Lp|Cold flow improvers for distillate fuel compositions|
    EA011358B1|2003-10-22|2009-02-27|Лейна Полимер Гмбх|Mineral oil composition comprising additive mixture, additive mixture as components of mineral oil composition, a method for producing thereof and use thereof|
    EP1674554A1|2004-12-24|2006-06-28|Clariant ProdukteGmbH|Additives for low-sulfur mineral oil distillates, comprisinggraft copolymer based on ethylene-vinyl acetate copolymers.|
    SG161220A1|2005-04-18|2010-05-27|Basf Ag|Turbine fuel composition exhibiting improved cold properties|
    RU2297442C2|2005-07-18|2007-04-20|Общество с ограниченной ответственностью "Ойлтрейд"|Heavy petroleum fuel|
    DE102006001381A1|2006-01-11|2007-07-12|Clariant International Limited|Low-sulfur mineral oil distillate additives comprising graft copolymers based on ethylene-vinyl ester copolymers|
    DE102006001380A1|2006-01-11|2007-07-26|Clariant International Limited|Low sulfur mineral oil distillate additives comprising graft copolymers based on ethylene-vinyl acetate copolymers|
    EP1923454A1|2006-11-17|2008-05-21|Basf Se|Cold flow improver.|
    PL2305753T3|2009-09-25|2012-07-31|Evonik Oil Additives Gmbh|A composition to improve cold flow properties of fuel oils|
    US8721744B2|2010-07-06|2014-05-13|Basf Se|Copolymer with high chemical homogeneity and use thereof for improving the cold flow properties of fuel oils|
    SG193907A1|2011-03-25|2013-11-29|Evonik Oil Additives Gmbh|A composition to improve oxidation stability of fuel oils|
    SG11201501909XA|2012-09-13|2015-04-29|Evonik Oil Additives Gmbh|A composition to improve low temperature properties and oxidation stability of vegetable oils and animal fats|
    BR112015013238B1|2012-12-18|2021-05-25|Basf Se|polymeric composition, and, use of a polymeric composition.|
    US9574146B2|2012-12-18|2017-02-21|Basf Se|Polymeric compositions composed of ethylene-vinyl ester copolymers alkyl acrylates, processes for production thereof and use thereof as pour point depressants for crude oils, mineral oils or mineral oil products|
    US10604715B2|2013-02-04|2020-03-31|Evonik Operations Gmbh|Cold flow improver with broad applicability in mineral diesel, biodiesel and blends thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19873725059|DE3725059A1|1987-07-29|1987-07-29|POLYMER FLOW IMPROVERS FOR MEDIUM DISTILLATES|
    [返回顶部]