WO2015147623A1 - Proceso de obtención de terpolímeros aleatorios derivados de ácido itacónico y ácido aconítico, y/o sus isómeros, y alquenil sulfonatos de sodio y uso del producto obtenido - Google Patents
Proceso de obtención de terpolímeros aleatorios derivados de ácido itacónico y ácido aconítico, y/o sus isómeros, y alquenil sulfonatos de sodio y uso del producto obtenido Download PDFInfo
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- WO2015147623A1 WO2015147623A1 PCT/MX2015/000042 MX2015000042W WO2015147623A1 WO 2015147623 A1 WO2015147623 A1 WO 2015147623A1 MX 2015000042 W MX2015000042 W MX 2015000042W WO 2015147623 A1 WO2015147623 A1 WO 2015147623A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/02—Acids; Metal salts or ammonium salts thereof, e.g. maleic acid or itaconic acid
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/04—Polymerisation in solution
- C08F2/10—Aqueous solvent
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
Definitions
- the present invention is related to the process of obtaining random terpoffmeres derived from ittaconic acid and aconitic acid and / or its isomers and alquenii sodium suifonates through a polymerization via free radicals at an acidic pH and using a redox system as initiator , and its use as inhibitors of calcium carbonate mineral encrustations, calcium sulfates, strontium and bath and dispersants of calcium carbonate, calcium sulfate, arcias and iron oxides.
- Random terpoiimers prevent and control the damage to the formation and obstruction of the hydrocarbon production rig, which are caused by mineral salt inlays present in oil fields and whose origin is the formation salinity of the formation water, incompatible mixtures of water of injection and water of formation, changes in pressure, temperature and pH. Random terpoiimers are used to inhibit and disperse mineral deposits present in cooling systems and boilers used in the petroleum and chemical industries and are characterized by being tolerant of high concentrations of divalent ions, such as calcium, magnesium, strontium and barium and which for its application in the reservoir or in the production rig can be used as a means of transport treated water, sea water and / or water characteristic of the reservoir. Likewise, the terpoiimers of the present invention have the characteristic of being able to be used under high temperature conditions and have low toxicity, BACKGROUND OF THE INVENTION
- the damage to the formation is defined as the partial or total obstruction of natural origin! or induced that the flow of fluids from the production formation (oil and gas) to the well or vice versa occurs in the rock, is a problem that can occur at different stages of the hydrocarbon exploitation and recovery process, as a result of an alteration in the most important petrophysical properties of the rock such as effective porosity and absolute permeability.
- the damage to the formation can be of natural origin or induced by the fluids used in the different operations that are carried out in the wells, such as drilling, cementing, completion, repair, production, water stimulation and injection treatment or gas.
- Inlays can develop in the pores of the formation in the vicinity of the well, with which, the porosity and permeability of the rock are drastically reduced and can also be present in the production and injection pipeline, the foregoing results in ; damage to the formation of the oil field, decrease in the production of crude oil, problems with water injection, restriction in the flow (pressure losses), work of reconditioning of wells due to the reduction in production, corrosion in the pipes of production and injection and in surface equipment, among others. All these problems generate expensive cleaning treatments, in addition to the replacement and continuous maintenance of equipment and pipes, but the loss of a productive well is properly controlled.
- the factors that influence the formation of these deposits are: temperature, pressure, flow rate, salinity, concentration of solid solids in water, pH, among others.
- the inlays found in areas of low (matrix) afte conductivity (fractures) of the deposit vary in its composition, mainly they are composed of calcium carbonate, calcium sulfates, strontium and barium, as well as iron oxides.
- Some mineral inlays, such as caycium carbonate (CaCCb) can dissolve with acids, but this depends significantly on the purity of the mineral, because caycium carbonate is generally combined with other minerals such as queum sulfate. and barium sulfate, which are very stable in acidic environments.
- Oilfield brines contain particles such as clays, and precipitates, mainly composed of caycium.
- the particles can deposit and accumulate on the surfaces, producing excessive sediments in the low velocity regions of the water, and interfering with the flow of water through the effective porosity of the reservoir formations.
- Kidnapping agents This works through the quetion of the cations (Ca 2+ , Ba 2 * , Sr 2+ ) present in congenital water, so that their solubility products are not exceeded due to the concentration.
- EDTA etiyend ⁇ aminotetracétco acid
- Organophosphonates are widely used as calcium carbonate scale inhibitors. Among the most common are (1): t-hydroxyethylene acid 1, 1, diphosphonic acid (a), amino tri-methylephosphonic acid (b) and pentamethylene phosphonic dietiientriamine acid (c).
- Phosphonates used as inhibitors of embedding a) l-hthoroxyethylene 1.1, diphosphonsco, b) amino tri-methylene phosphonic acid, c) thiethientriamine pentamethylene phosphonic acid.
- organophosphonates with application as antifouling as indicated in the following patent documents:
- This type of inhibitor has the advantage that the phosphorus-carbon bond is less susceptible to hydrolyzing, but under more severe operating conditions such as sudden changes in pH, high concentration of calcium ions and temperature greater than 150 ° C cause them to be susceptible to react with calcium ions to form calcium phosphates (GE Geiger, Water & Procese Technoiogy, 2006, 1-7, tt New Non-Phosphorous Gacilium Carbonate In ⁇ bitor Reduces Phosphorus Levéis and Overcomes Limitations of Phosphonates * '; Ruenradee Prachasri, "Developing a New Environmentally Acceptabte Non -Phosphorus Cooi ⁇ ng Water Treatmert ⁇ Program ", Eiectricity Generafing Authority of Thaiand, Nonthaburi 11130, Tha ⁇ and; W.
- organophosphonates are susceptible to degradation by oxidizing biocides (Separated Science and Technology, 42, 2007, 183 ⁇ ⁇ 1649; "Degradation of Phosphonafe-Based Scale Inh ⁇ biior Addltives in the Presence of Oxidiz ⁇ ng Bioc ⁇ des:" Co ⁇ late ral Damages * ⁇ n Industrial Water Systems ”) and form orthophosphate ions, which react with the calcium ions present in the water to form calcium phosphate and therefore generate problems of pipe obstruction and decrease in heat transfer in systems Cooling.
- polymeric antifouling inhibits the formation of fouling in the face of the active sites of the microcrystals, and by phenomena such as crystalline modification, dispersion and inhibition in the precipitation threshold prevent the growth and agglomeration of microcrystals.
- Some of the most used polymers (4) are sodium poly (acrylate), poly (mapheic acid), sodium polyvinyl sulphonate and acid derived copoimers
- compositions containing various antifouling agents have been developed, among which are the following: Mexican patent application WX a / 2013/004644 ("Process for obtaining random copolymers derived from itaeonic acid and / or its isomers and alkeni ⁇ sodium suifonates and use of the product obtained "), describes the process of obtaining random copoiimers derived from itaeónico acid and / or its isomers and afquenii sodium suifonates and their use as scattering inhibitors of scale minerals such as calcium carbonate and calcium sulfates, barium and strontium for ammonium and sodium bisulfite deposits as free radical promoter catalytic agents.
- scale minerals such as calcium carbonate and calcium sulfates, barium and strontium for ammonium and sodium bisulfite deposits as free radical promoter catalytic agents.
- inhibitor and polyhydric hydroxides which causes it to increase e! moiecuiar weight of the polymeric chains, and the same happens, if the polymer is constituted of phosphate groups.
- the polymer is constituted of phosphate groups.
- US Patent US 8, 215, 398 fPoiysaccharid based scaie inhibito proposes a method for modifying poiisaccharides, since derivatives of this type of compounds are effective in inhibiting different types of scale.
- the modified polysaccharide has a molecular weight of up to 500,000 urn, in addition, it has the characteristic of being biodegradable and resistant to high temperatures. It is useful in the control of corrosion and scale deposits due to its high tolerance to organic and inorganic safes such as sodium chlorides, potassium and calcium and magnesium ions.
- US patent application US 2002 0150499A1 (O ⁇ l-soluble scafe ⁇ nh ⁇ bitors w ⁇ th formulation for improved environmentai class ⁇ fication , ⁇ ) provides information about the composition of scale inhibitors with application in hydrocarbon production systems.
- the formulations contain commercial inhibitors in their acid form, 2-ethyl-hexifamine (2-EHA) and similar amines.
- 2-EHA 2-ethyl-hexifamine
- the formulations described have the advantage over conventional scale inhibitors, because they are less toxic and more biodegradable.
- US patent application US 201070163494A1 (“Preparation of environmentaiiy accept scale inhibitors”) presents a method for the control of scale using amino acids to prepare alkyl phosphonates, which are achieved by controlling the alkyl phosphonaton reaction.
- the hydrogens (-H) d of each amine group are substituted with alkyl phosphonate groups (-R-PO- (OH) 2> this type of compounds are very effective in inhibiting scale encrustation).
- CaCOa and BaS04 it turns out that mono alkylated amino acids tend to be more biodegradable than amino acids di-substituted with alkyl phosphonates.
- US patent 6,924,253 B2 f Scale removai describes a method for removing scale (mainly from BaSCk and CaCOs) inside or near the producing well in hydrocarbon recovery processes using ionic liquids such as: 1 ⁇ ethyl-3-methylimidazoi tetrachloroaluminate, 1-butylpyridin nitrate, 1-ethyl ⁇ 3-methyl imidazoi tetrafluoroborate and 1 -butylpyridine hexafluorophosphate US Pat. No.
- 6,995,120 Scale control composition for hydr scalng environment protects a carbonate sulfate / carbonate sulfate scale inhibitor composition
- Barium composed of a water-soluble polymer that has a phosphate functionality incorporated, the polymer is formed of at least one ethylenically unsaturated cartxjxylic acid monomer, at least one ethnically unsaturated vinit suifonate monomer, or a mixture thereof.
- the patent specifically protects the terpoimer derived from the polymer process Acrylic acid with 2-acrylamide 2-metH propane sulfonic acid and ethoxylated ester oleti phosphate.
- European patent EP 1639228B1 fMethod for stimulating an oi ⁇ f ⁇ eid compressislng using different scaie-inhibitors proposes the production of crude by injecting water vapor into the producing area as a rusting fluid and recovering it as an oil-composed fluid, the intention of this proposal
- the injections of the fluids are different segments of the producing area, and also includes the use of scale inhibitors at different concentrations and injected directly and / or diluted.
- this is a method of production in ei that injecting inhibitor in different areas allows an improvement in the control of scale.
- supramoiecuiar chemistry is part of the chemistry that is responsible for the study of systems that involve aggregates of molecules or ions that are bound through non-covalent interactions, such as electrostatic interactions, coordination bonds, hydrogen bonds, ⁇ - ⁇ interactions, dispersion interactions and soivophobic effects.
- Supramoiecuiar chemistry can be divided into two large areas; 1) Hospedero-Guest Chemistry and 2) Self-assembly. The difference between these two large areas is a matter of size and shape; where, there is no significant difference in size and none of the species acts as the host for the other, the non-covalent union between two or more species is called self-assembly.
- supramoiecular interactions are much weaker than covalent bonds, which are located in the energy range of 150 to 450 Kj / moi for single bonds.
- the energy range of non-covalent interactions is located from 2 kj / mol for dispersion interactions up to 300 kj mol for ion-ion interactions (Table 1) and the sum of several supramoiecular interactions can give rise to highly stable supramoiecular complexes.
- Table 1 Strength of supramoiecuiary interactions
- Computational chemistry is a tool widely used worldwide to predict the stability and structure of chemical systems with potential improved properties and has found application at the industrial level in the development of quantitative structure-activity relationship studies.
- computational methods of calcium that have been used for this purpose are the molecular mechanics methods, the quantum methods, within which there are semi-empirical methods and ab mitlo f and the methods of density functional theory.
- Figure 1 shows the infrared spectrum of product 1.
- Figure 1 shows the 1 H NMR spectrum of! product 1.
- Figure 13 shows the 13 C NMR spectrum of product 1.
- Figure No. 4 shows the morphology and composition of calcium sulfate crystals, a) without chemical and b) with 200 ppm of product 1.
- Figure 5 shows the morphology and composition of the calcium carbonate crystals, a) without chemical and b) with 200 ppm of product 1.
- the present invention relates to the process of obtaining random terpolymers based on itaconic acid or its isomers, aconitic acid or its isomers and sodium alkenyl sultanates of structural formula (5), through an aqueous solution polymerization via free radicals to a Acid pH in the range of 1.0 to 3.5 and as an initiator a redox system, and its use as inhibitors of mineral encrustations such as calcium carbonate, calcium sulfates, strontium and barium and dispersants of clays, iron oxides, carbonate and calcium sulfate .
- mineral encrustations such as calcium carbonate, calcium sulfates, strontium and barium and dispersants of clays, iron oxides, carbonate and calcium sulfate .
- the terpolymers prevent and control the damage to the formation and the obstruction of the production rig of the hydrocarbons, which are caused by incrustations of mineral salts present in oil fields and whose origin is the high salinity of formation water, incompatible mixtures of injection water and formation water, changes in pressure, temperature and pH
- the therpoimers are used to inhibit and disperse mineral deposits present in cooling systems and boilers used in the oil industry and chemical and are characterized by being tolerant of high concentrations of divalent ions, such as calcium, magnesium, strontium and barium, and that for application in the reservoir or in the production rig, treated water, seawater and / or characteristic water of the reservoir.
- the random terpoiimers of the present invention have the characteristic of being able to be used under conditions of
- the selection of the present methodology is based on the fact that the key point to develop anti-fouling agents tolerant of high salinities and concentrations of divalent ions and capable of withstanding conditions of high temperatures and pressures, is the understanding at the molecular level of how random terpoiimers based on itaconic acid or its isomers, aconitic acid or its isomers and sodium alkenyl sulphonates are adsorbed on crystals of mineral salts with encrusting properties and give rise to supramolecular complexes capable of: 1 ⁇ Inhibiting e! Precipitation threshold just after a nucleation center has formed.
- the terpolymer will adsorb on one of the faces mycrystalline from the nucleus center of the inorganic salt and will form ionic pairs, preventing the diffusion of ions to the growth centers; 2) Distort or modify the crystal lattice.
- alterations in surface properties such as size, adhesion, hardness, toughness, crystalline structure, etc .; bringing as consequence that the crystals are fragmented, become amorphous, soft and little adherent, and therefore their removal is facilitated by the continuous flow of water and 3) Disperse.
- Chemical structure A representing a random terpotimer based on laconic acid, vinii sodium sultanate and acortitic acid with molecular weight of 803 AMU and polydispersity of 1.
- E - Supramoleailar complex derived from the interaction of the random terpoimer based on itaconic acid, sodium vinyl sulfonate and the aconitic acid with molecular weight of 903 AMU and poiidispersity of 1, corresponding to compound A (S), the surface of Sulfate Sulfate in its polymorphic form of Barite O ⁇ 7 ⁇ .
- G sup Supramolecuiar complex derived from the interaction of the random terpolymer based on iacenic acid, vinyl sodium suifonate and aconitic acid with molecular weight of 803 AMU and potidispersity of 1, corresponding to compound A (6), and the surface of Calcium Suffate in its polymorphic form of Anhydrite D (14).
- reaction mixture is maintained with vigorous stirring and at a temperature of 92 ° C (+/- 2 ° C) ( for 6 hours, at which time 640 g of a clear liquid of reddish co ⁇ or, which contains random ai terpoimer derived from itaconic acid, aconitic acid and sodium vtnyl sulphonate called product 1, whose average molecular weight in number is 984 UNIT, average molecular weight in weight of 1090 MA and Poidispersity index of 1.11.
- reaction mixture is maintained with vigorous stirring and at a temperature of 92 ° C ⁇ +/- 2 ° C), for 6 hours, at which time 577 g of a transparent liquid of reddish color, which contains the random terpolymer derived from itaconic acid, aconitic acid and vinyl sodium suifonate called product 1, whose number average molecular weight is 1061 ÜMA, weight average molecular weight of 1220 UMA and potidispersity index of 1, fifteen.
- Solution containing calcium ions contains 7.5 g / L of NaCl + 11.1 g / L of CaCl 2 .2H20.
- Solution containing sulfate ions contains 7.5 g / L of NaCl + 10.68 g / L of NaaSCM.
- the solution is analyzed by atomic absorption, in order to obtain the remaining concentration of calcium ions in the solution.
- a control is prepared containing only the amount of calcium ions. The percent inhibition was calculated with the expression (1).
- Solution containing calcium ions contains 7.5 g / L of NaC ⁇ + 22.2 g / L of CaCl2.2H 2 0.
- Solution containing sulfate ions contains 7.5 g / L of NaCl + 21.32 g / L of
- the desired concentration of inhibitor is prepared in the solution containing sulfate ions.
- product 1 was evaluated, using two brines with a high concentration of calcium and sulfate ions.
- Figure 4 shows the images and compositions of the crystals formed from the mixture of the solutions for: a) without chemical and b) with 200 ppm of product 1. It is possible to clearly see how product 1 fragments and distorts Jos calcium sulfate crystals, thus inhibiting the growth of larger crystals.
- product 1 was evaluated using two brines with a high concentration of calcium and bicarbonate ions.
- Figure 5 shows the images and compositions of the crystals formed from the mixture of the solutions without chemical and the mixture of solutions with the product 1, for: a) without chemical and b) at a concentration of 200 ppm It is possible to clearly observe how the product 1 fragments and distorts the crystals of cacyte carbonate at a concentration of 200 ppm, thus inhibiting the growth of the crystals. Likewise, the chemical composition obtained shows the presence of sulfur in all solids, which corroborates the presence of product 1 and therefore the formation of supramolecular complexes and their effect on the distortion of the morphology of calcium carbonate crystals. c) Determination of the inhibition of caustic carbonate scale (CaCOs) characteristic of a cooling system. This method determines the efficiency of calcium carbonate saies scale inhibitors.
- CaCOs caustic carbonate scale
- a blank is prepared as in points 1 and 3 composed of NazC03 and CaC ⁇ 2 solutions without inhibitor and stirred.
- a reference solution without Inhibitor composed of NaCOs and CaCb solutions is prepared as in Jos points 1 and 3.
- Table 6 shows the conditions of the test.
- the amount of calcium ions is determined through titration with EDTA ⁇ disodium salt of etiiendiamlnotetraacetic acid).
- the measurement is based on the application of nephelometric technique using a photometer ⁇ Figure 6).
- the standard method is based on the comparison of the magnitude of the light scattered by the colloidal particles present in a water sample, with the intensity of the light emerging through the same sample.
- Turbidity is expressed in turbidity units (NTU), where one turbidity unit is equivalent to a suspension of formaiin in water with a concentration of 1 ppm.
- NTU turbidity units
- Table 8 shows the results of the dispersant effect of the product 1 of the present invention and of a commercial polymer used as a dispersant of inorganic salts. The results show that the product works better to disperse fallen carbonate than the acric polyad.
- a solder is prepared with a hardness such as broth carbonate of 200 ppm, 750 ppm of iron oxide and the addition of the product. The mixture is stirred and allowed to stand for a period of 4 hours. At the end of the test, an aliquot is taken and turbidity is measured.
- the determination of the iron oxide dispersing capacity for product 1 was carried out at a concentration of 25 ppm.
- Table S shows the results of the iron oxide dispersion test for product 1 of the present invention and of a commercial polymer used as a dispersant of inorganic salts.
- a brine with a hardness of 200 ppm as calcium carbonate and 1000 ppm of arcia (kaolin) was prepared, said substances are contacted and the prepared dispersant is added at a concentration of 25 ppm.
- the determination of the dispersing capacity of clays for product 1 was carried out at a concentration of 25 ppm.
- Table 10 shows the results of the clay dispersion test (kaolin) for the product 1 of the present invention and of a commercial polymer used as a dispersant of inorganic safes.
- Table 3 f Determination of the prevention and remediation of the damage caused by precipitation of your calcium fat by an incompatible mixture of brines in a limestone number at conditions of high temperature » at high pressure and high salinity. Prevention of the damage caused by precipitation of calcium suiphate in the limestone core at reservoir conditions.
- This method is applicable for the evaluation of acute toxicity in water and water soluble substances.
- Sas species of the genus Daphnia are the most used as bioindicators in toxicity tests, due to their wide geographical distribution, the important role they play within the zooplankton community, the ease of cultivation in the laboratory, their Responsiveness to a wide range of toxins.
- the determination of acute toxicity was carried out through the Mexican standard NMX-AA-087-SCF1-2010, which establishes the method for the measurement of acute toxicity, using the organism ducceacuico ⁇ a Dap nia magna (Crustacea - C ⁇ adócera) the organism Artemia franciscana.
- product 1 is in the category of particularly non-toxic to the organism dulceacufcola daphnia magna.
- Tafoia 15. Toxicity to Daphnia magna.
- Non-concentration ppm, classification 8 category 5: 0.01-0.10, highly toxic; 4: 0.1-1.0, attentively toxic; 3; 1-10, moderately toxic; 2; 10-100, i ⁇ gerame ⁇ tó toxic; 1: 100-1000, share with me non-toxic and 0:> 1000, non-toxic.
- the terpoiimer of the present invention has a UT-0.99, which passes the Mexican standard NRF-0 5-PEMEX ⁇ 20 9 and can be used in equipment and pipes of the petroleum and chemical industry that use fresh water and that are installed on land.
- Table 16 shows the average toxicity result of a total of three repetitions.
- the bacterial Microtox® bioassay designed by S ⁇ rategic Diagnostic inc. ⁇ Azur Envtronrnentai ⁇ is based on monitoring the changes in natural light emissions of a luminescent bacterium, Vib or physcher ⁇ (P oiobacter ⁇ um phosphoreum).
- the Microtox test measures the acute toxicity of the test substance present in an aqueous solution that uses a suspension of approximately one million luminescent bacteria (P oiobact & rittm Phosphoreum) as a test organism;
- the suspension of microorganisms is added to a series of temperature controlled dilution tubes with different concentrations of the test substance, then read in a photometric equipment the Intensity of light emitted by each dilution, considering a reference target in which no The test substance is present.
- a dose-response graph can be made, by which the ECso value is calculated.
- the EC is a measure of the decrease in light emitted by the bioluminescent bacteria by the analyzer, and specifically represents the concentration at which a decrease in the light was obtained by 50 percent, with respect to a reference target. Specifically, the value of the EC indicated the relative toxicity of the test substance.
- the acute toxicity with Vibrio physcher ⁇ was determined for product 1, using the procedure established and described in Mexican standard NMX-AA-112-1995-SCF ?, used for the evaluation of the toxicity of natural and wastewater in addition to pure or combined substances, by means of biobacterial phosphomum bioiuminiscent bacteria.
- Table 17 shows the average toxicity result of a total of fres repetitions.
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- Environmental & Geological Engineering (AREA)
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- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
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Abstract
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Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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CN201580015917.1A CN106103510B (zh) | 2014-03-25 | 2015-03-13 | 三元无规共聚物、其获得方法及用途 |
EP15768216.2A EP3124510B1 (en) | 2014-03-25 | 2015-03-13 | Method for obtaining random terpolymers derived from itaconic acid and aconitic acid, and/or the isomers thereof, and/or sodium alkenyl sulphonates, and use of the resulting product |
CA2942889A CA2942889C (en) | 2014-03-25 | 2015-03-13 | Process to obtain random terpolymers derived from itaconic acid, aconitic acid and/or its isomers, and alkenyl sulfonates and use of the product thereof |
US15/129,245 US11384187B2 (en) | 2014-03-25 | 2015-03-13 | Process to obtain random terpolymers derived from itaconic acid, aconitic acid and/or its isomers, and alkenyl sulfonates and use of the product thereof |
BR112016021836-1A BR112016021836B1 (pt) | 2014-03-25 | 2015-03-13 | Terpolímero, uso de um terpolímero, e processo para obtenção de terpolímeros |
PH12016501634A PH12016501634B1 (en) | 2014-03-25 | 2016-08-16 | Process to obtain random terpolymers derived from itaconic acid, aconitic acid and/or its isomers, and alkenyl sulfonates and use of the product thereof |
US17/750,088 US20220275126A1 (en) | 2014-03-25 | 2022-05-20 | Processs to obtain random terpolymers derived from itaconic acid, aconitic acid and/or its isomers, and alkenyl sulfonates and use of the product thereof |
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MXMX/A/2014/003577 | 2014-03-25 | ||
MX2014003577A MX2014003577A (es) | 2014-03-25 | 2014-03-25 | Proceso de obtencion de terpolimeros aleatorios derivados del acido itaconico y acido aconitico, y/o sus isomeros, y alquenil sulfonatos de sodio y uso del producto obtenido. |
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US15/129,245 A-371-Of-International US11384187B2 (en) | 2014-03-25 | 2015-03-13 | Process to obtain random terpolymers derived from itaconic acid, aconitic acid and/or its isomers, and alkenyl sulfonates and use of the product thereof |
US17/750,088 Division US20220275126A1 (en) | 2014-03-25 | 2022-05-20 | Processs to obtain random terpolymers derived from itaconic acid, aconitic acid and/or its isomers, and alkenyl sulfonates and use of the product thereof |
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US (2) | US11384187B2 (es) |
EP (1) | EP3124510B1 (es) |
CN (1) | CN106103510B (es) |
BR (1) | BR112016021836B1 (es) |
CA (1) | CA2942889C (es) |
MX (1) | MX2014003577A (es) |
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JPS56115630A (en) * | 1980-02-20 | 1981-09-10 | Toagosei Chem Ind Co Ltd | Dispersant of pigment for coated paper |
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US6146495A (en) * | 1998-08-31 | 2000-11-14 | Nalco Chemical Company | Kraft process for the production of wood pulp by adding a copolymer of 1,2-dihydroxy-3-butene antiscalant |
US20030073586A1 (en) * | 2001-10-03 | 2003-04-17 | Martin Crossman | Scale control composition for high scaling environments |
CN101475266A (zh) * | 2009-01-09 | 2009-07-08 | 东南大学 | 一种荧光示踪阻垢剂及其制备方法 |
US8420758B2 (en) * | 2010-03-11 | 2013-04-16 | Itaconix Corporation | Regulated and continuous polymerization of polycarboxylic acid polymers |
CN101898837A (zh) * | 2010-04-08 | 2010-12-01 | 山东省特种设备检验研究院淄博分院 | 醚基衣康酸磺酸盐类多元共聚物阻垢剂及其制法 |
CN101830571B (zh) * | 2010-06-11 | 2012-06-27 | 西安建筑科技大学 | 衣康酸共聚物阻垢剂及其微波合成方法 |
CN102358772A (zh) * | 2011-09-19 | 2012-02-22 | 济南大学 | 一种无磷绿色环保型阻垢剂的制备方法 |
MX342993B (es) * | 2013-04-25 | 2016-10-13 | Inst Mexicano Del Petróleo | Proceso de obtencion de copolimeros aleatorios derivados del acido itaconico y/o sus isomeros y alquenil sulfonatos de sodio y uso del producto obtenido. |
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GB1054755A (en) * | 1963-04-01 | 1967-01-11 | Procter & Gamble | Polyelectrolyte builders and detergent compositions |
JPS56115630A (en) * | 1980-02-20 | 1981-09-10 | Toagosei Chem Ind Co Ltd | Dispersant of pigment for coated paper |
US4741843A (en) * | 1986-09-26 | 1988-05-03 | Diamond Shamrock Chemical | Fluid loss control additives and drilling fluids containing same |
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PH12016501634A1 (en) | 2017-02-06 |
CA2942889A1 (en) | 2015-10-01 |
CA2942889C (en) | 2019-10-22 |
WO2015147623A8 (es) | 2016-01-28 |
BR112016021836B1 (pt) | 2021-11-03 |
EP3124510A4 (en) | 2017-02-22 |
BR112016021836A2 (es) | 2017-08-15 |
US20220275126A1 (en) | 2022-09-01 |
US20170121440A1 (en) | 2017-05-04 |
CN106103510A (zh) | 2016-11-09 |
US11384187B2 (en) | 2022-07-12 |
EP3124510B1 (en) | 2018-07-18 |
CN106103510B (zh) | 2019-07-09 |
MX2014003577A (es) | 2015-09-25 |
EP3124510A1 (en) | 2017-02-01 |
PH12016501634B1 (en) | 2017-02-06 |
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