444 results about "Thiophosphoric acid" patented technology

A premium synthetic lubricant having antiwear properties comprises a synthetic isoparaffinic hydrocarbon base stock and an effective amount of at least one antiwear additive. The antiwear additive is preferably at least one of a metal phosphate, a metal dialkyldithiophosphate, a metal dithiophosphate a metal thiocarbamate, a metal dithiocarbamate, an ethoxylated amine dialkyldithiophosphate and an ethoxylated amine dithiobenzoate. Metal dialkyldithiophosphates are preferred, particularly zincdialkyldithiophosphate (ZDDP). The base stock is derived from a waxy, Fischer-Tropsch synthesized hydrocarbon feed fraction comprising hydrocarbons having an initial boiling point in the range of about 650-750 DEG F., by a process which comprises hydroisomerizing the feed and dewaxing the isomerate. The lubricant may also contain hydrocarbonaceous and synthetic base stock material in admxture with the Fischer-Tropsch derived base stock.

Methods and intermediates for the preparation of oligomers containing diastereomerically enriched phosphorothioate and boranophosphate linkages are disclosed.

The invention discloses a chromium-free self-lubricating passivation solution and a preparation method thereof. The chromium-free self-lubricating passivation solution is formed by compounding the following compositions in percentage by weight: 8%-12% of water-borne epoxy resin, 0.5%-1% of curing agent, 10%-15% of silane coupling agent, 0.5%-1% of inorganic component, 2%-4% of solid lubricant, 1%-2% of friction modifier, 0.5%-1% of anti-wear agent, 0.5%-1% of anti-sinking agent, and 60%-75% of diluting agent. The inorganic component is one or a combination of Ce(NO3)3 and sodium molybdate, the solid lubricant is one or a combination of two or more of polytetrafluoroethylene, polyethylene wax, polyethylene, molybdenum disulfide and graphite, the friction modifier is self-synthesized molybdenum dialkyldithiophosphate, the anti-wear agent is one or a combination of nanosilicon dioxide and nano aluminum oxide, the anti-sinking agent is attapulgite, and the diluting agent is a mixture of water and ethanol. A plate product coated with passivation solution has the advantages of being pollution-free, low-friction, anti-oxidized, anti-wear and extreme pressure-resistant, corrosion-resistant, finger-resistant, having good mechanical performance and the like, and the passivation solution can be directly coated on the surfaces of a zinc-plated plate and parts of certain mechanical equipment for use.

A lubricating oil composition comprising a) an oil of lubricating viscosity having a viscosity index of at least about 95; b) at least one calcium detergent; c) at least one oil soluble titanium compound; d) at least one friction modifier; and e) at least one metal dihydrocarbyldithiophosphate compound. The composition has a Noack volatility of about 15 wt. % or less, and contains from about 0.05 to about 0.6 wt. % calcium from the calcium detergent, titanium metal in an amount of at least about 10 ppm up to about 1500 ppm titanium from the titanium compound, and phosphorus from the metal dihydrocarbyldithiophosphate compound in an amount up to about 0.1 wt. %.

A sensor and method for detecting biological and chemical agents comprising metal interdigitized electrodes coated with hybrid polymer-based conducting film and an instrument for applying electrical voltage to the electrodes and registering the change in electrical current. The hybrid film also comprises indicator biomolecules encapsulated within the film or attached to it. The bioindicator molecules preferably comprise enzyme acetylcholinesterase. When these indicator biomolecules come in a contact with a pathogen, chemical and/or morphological changes occur in the film and electrical current flowing through the electrodes is modulated. The pathogen comprise inhibitors of enzymes, preferably organophosphates, thiophosphates or phosphonates. The change in current indicates the presence of a biological and chemical agent and is registered.

A lubricative composition for industrial machinery and equipment which comprises a base oil selected from among mineral oils, fats and oils, synthetic oils and mixture of two or more of them, and at least one additive selected from among the following components (A) to (D): component (A): (A-1) a phosphorus-containing carboxylic acid and/or (A-2) a thiophosphoric ester, component (B): a dispersant viscosity index improver, component (C): (C-1) a specific amidocarboxylic acid compound and/or (C-2) a specific carboxylic acid compound, and component (D): an ester oiliness improver. The composition is favorable as a lubricating oil composition and useful as a gear oil composition, a lubricating oil composition for paper machines or a lubricating oil composition for slide guides, a hydraulic oil, or the like.

The present invention provides a process for producing copper nanoparticles, comprising steps of: a) reacting an aqueous solution containing a reductant with an aqueous solution of a copper salt while stirring for 1-8 min, wherein the reductant being one or more selected from a group consisting of hydrazine hydrate, sodium borohydride and sodium hypophosphite; b) adding an apolar organic solution containing the extracting agent and continuing the stirring for 0.5-1.5 hrs, said extracting agent being one or more selected from the group consisting of alkyl dithiocarbonic acid and salts thereof, O,O′-dialkyl dithiophosphoric acid and salts thereof, and dialkylamino dithioformic acid and salts and said apolar organic solution being one selected from the group consisting of benzene, toluene and straight or branched alkanes having 6-12 carbon atoms, wherein the alkyl having 6-20 carbon atoms; and c) post-treating the reaction product to obtain copper nanoparticles.

The invention relates to a lubricant composition for a diesel engine. The lubricant composition for a diesel engine contains less than or equal to 0.09% by mass of phosphorus, less than or equal to 0.4% by mass of sulfur and less than or equal to 1.0% by mass of sulfate ash. The lubricant composition for a diesel engine comprises A) a composite antioxidant comprising at least components of 1, an alkylated diphenylamine antioxidant, 2, a thiophenolic ester antioxidant and 3, an unessential phenolic thioether antioxidant, B) a polyisobutylene succinimide ashless dispersant and/or a boronized polyisobutylene succinimide dispersant, C) a mixture of magnesium sulfate and sulfurized calcium alkyl phenate, D) at least one zinc dialkyldithiophosphate, E) one or more ashless friction modifiers, and F) a main amount of lubricating base oil. The lubricant composition for a diesel engine has a synergistic effect of the additives, can satisfy high-temperature antioxidation requirements of lubricating oil for a diesel engine, and has excellent piston cleanliness, wear resistance and a viscosity increasing control capacity.

Aldehydes useful as H₂S sulfide scavengers may be corrosive to some metals such as steel, iron and aluminum, but the corrosive effect of the aldehydes may be mitigated by employing a corrosion inhibitor selected from the group consisting of a di-basic soluble phosphate salt, a tri-basic soluble phosphate salt, a phosphate ester, a thiophosphate ester, a thioamine, and combinations thereof.

The invention relates to a phosphoryl carboxylic acid propofol ester derivative which has the general formula (I). The method comprises the following steps: propofol reacts with 2-halogenated carboxylic acid and a derivative thereof by alkali to obtain corresponding ester and then the product reacts with phosphoric acid or thiophosphoric acid and the derivative thereof by dissolvent to obtain a water-soluble product or the propofol reacts with a 2-halogenated carboxylic acid phosphate ester derivative by the alkali to obtain the corresponding ester and then the ester is catalyzed, hydrogenated and salified to obtain the water-soluble product (I). The preparation method has mild reaction condition, high yield, simple operation and industrialized prospect, and a prepared oral preparation has the characteristics of high bioavailability, rapid absorption, high stability, and the like; and auxiliary materials with safety defects, such as a surface active agent, and the like can not be added into the prepared injection, thereby improving the stability of the preparation, reducing or removing injection pain, increasing the compliance of patients, overcoming the defects of propofol emulsion and having the advantage of obvious effect. The invention has the structural general formula (I).

The invention provides a special slow control/release fertilizer for an eggplant. The fertilizer is characterized by comprising, in terms of mass percent, 0.05% to 0.08% of n-butyl triamine thiophosphate, 0.05 to 0.08% of hydroquinone and 0.24 to 0.28% of dicyandiamide. According to the invention, the special slow control/release fertilizer is prepared by combining macro-element, medium-element and trace-element fertilizers like nitrogen, phosphorus, potassium, calcium, magnesium, molybdenum, boron, zinc and iron with organic fertilizers like high-quality decomposed rapeseed dregs, chicken manure and grass carbon, adding a urease inhibitor and a nitrification inhibitor and carrying out mixing; the special slow control/release fertilizer has a slow release effect in soil, is rich in a variety of nutrient elements needed in growth of the eggplant, can meet demands of the eggplant for nutrients in different growth and development phases for a long time and effectively improves output of the eggplant.

The invention relates to a polyurea-based grease additive composition. Components and percentage content of the polyurea-based grease additive composition are that: base oil is mineral oil and synthetic oil or blending oil of the mineral oil and the synthetic oil, and the content of the base oil is from 71% to 91.5%; a thickening agent is composed of a common reactant of isocyanate, fatty amine and alicyclic amine, and the content of the thickening agent is from 6% to 12%; an antioxidant uses amine antioxidants, and the total content of the antioxidant is from 0.5% to 3%; an extreme-pressure agent uses a mixture of sulfurized isobutylene, dialkyl group dithiophosphate and dialkyl group dithiocarbamic acid, and the total content of the extreme-pressure agent is from 0.5% to 5%; the content of an antirusting agent is from 0.5% to 3%; an antiwear agent is triphenyl thiophosphate and thiophosphoric acid ester or a mixture of the triphenyl thiophosphate and the thiophosphoric acid ester, and the total content of the antiwear agent is from 0.5% to 3%; and tackifier is polyisobutene and polymethyl methacrylate or a mixture of the polyisobutene and the polymethyl methacrylate, and the total content of the tackifier is from 0.5% to 3%. Due to the fact that appropriate raw material proportion is selected and used, grease has good high-temperature performance, a dropping point is higher than 260 DEG C, and the polyurea-based grease additive composition has a good water-resisting property, high and low temperature resistance and extreme pressure anti-wear performance, and can be applied to lubrication of each key running part of a continuous casing machine.

A lubricating composition comprising a major amount of base oil and a minor amount of an additive package, wherein the additive package comprises: (A) a friction modifier component selected from: (a) one or more a reaction products of an alcohol with a compound of the formula IV: (see formula IV); and (b) one or more compounds of the Formulae II-III: (see formula II) (see formula III) wherein wherein R is a linear or branched, saturated, unsaturated, or partially saturated hydrocarbyl having about 8 to about 22 carbon atoms; R2 and R3 are independently selected from hydrogen, C1-C18 hydrocarbyl groups, and C1-C18 hydrocarbyl groups containing one or more heteroatoms; and X is an alkali metal, alkaline earth metal, or ammonium cation and n is the valence of cation X; and (B) at least one metal dialkyl dithio phosphate salt.

The invention relates to the field of chemosynthesis, a trihydrate 3-aminopropyl amine ethyl thiophosphoric acid(amifostine)stable crystal and a preparation method thereof. The method comprises the following steps: step one, according to the molar ratio of between 1.01 to 1.0 and 1.2 to 1.0, N-(2-bromethyl)-1,3-propane diamine bi-hydrobromide and sodium thiophosphate are dissolved in water, are added with a polar aprotic solvent as an accelerant and react at a temperature of between 10 and 40 DEG C; after reaction, the mixture is directly cooled to precipitate a coarse product of trihydrate amifostine; step two, the coarse product of the trihydrate amifostine obtained in the step one is subjected to primary recrystallization and purification, is dissolved in the water and is precipitated out through methanol to obtain anhydrous amifostine; and step three, the anhydrous amifostine obtained in the step two is subjected to secondary recrystallization and purification, is dissolved in the water and is decolored through active carbon; and the trihydrate amifostine crystal is precipitated out through ethanol. The purity of the crystal is more than or equal to 99.5 percent; the content of mercaptan is less than or equal to 0.1 percent; the content of other relevant substances is less than or equal to 0.1 percent; and a product is stable and is suitable for scale production.

The invention relates to high-temperature-resistant and wear-resistant lubricating oil for a drilling fluid. The lubricating oil is prepared from the following raw materials in parts by mass: 30-48 parts of palm oil, 11-14 parts of sulfurized isobutylene, 5-8 parts of fatty alcohol-polyoxyethylene ether, 6-9 parts of nano graphite powder, 4-9 parts of zinc dialkyl dithiophosphate, 8-12 parts of molybdenum oxygen dialkyldithiophosphate, 1-3 parts of 3, 4, 5-trimethoxyl cinnamic acid, 10-14 parts of lauric acid monoethanolamide phosphate, 16-19 parts of glycerine, 10-13 parts of ethylene glycol monobutyl ether and 20-30 parts of pentaerythritol. By reasonably compounding the palm oil and other additives, the lubricating performance, high-temperature resistance and wear resistance of the lubricating oil are effectively improved. Meanwhile, 3, 4, 5-trimethoxyl cinnamic acid and lauric acid monoethanolamide phosphate are added, so that the high-temperature resistance, the wear resistance and the antirust time of the lubricating oil are effectively improved under the joint effect of 3, 4, 5-trimethoxyl cinnamic acid, lauric acid monoethanolamide phosphate and other components, and the friction coefficient is greatly lowered.

The invention discloses a composite collecting agent for bulk floatation of copper sulfide molybdenum ores. The collecting agent is a stable oily product which is formed by mixing 50%-70% of thiocarbamic acid ester, 2%-10% of thiophosphoric acid ester, 10%-30% of mixed non-polar hydrocarbon oil and 10%-20% of terpene alcohol. The collecting agent has the advantages that the thiocarbamic acid ester has the selective chelation on the exposing active points, such as copper and molybdenum, on the surfaces of minerals, the thiophosphoric acid ester has the selective adsorption function on the copper-containing minerals, the non-polar hydrocarbon oil can be adsorbed on the surface of the copper sulfide molybdenum ores through the Van der Waals force, and the terpene alcohol is a solution medium and has good air bubble property, so under the synergistic effect of the thiocarbamic acid ester, the thiophosphoric acid ester, the mixed non-polar hydrocarbon oil and the terpene alcohol, a good ore selection index can be obtained, and the agent mechanism is simplified; the collecting agent is used at the ore slurry temperature of 5-35 DEG C, and the usage amount is between 80-160g/t according to the change of the contents of usable minerals in the ores.

The present invention provides a lubricating oil composition for an internal combustion engine which is very good in base number retention property, detergency at high temperature and valve train anti-wear property and does not substantially contain phosphorus- and/or sulfur-containing anti-wear agent. The composition comprises a lubricant base oil comprising a mineral oil and/or a synthetic oil, (A) 0.001 to 0.5% by mass of an ester of a boric acid in terms of boron element therein and (B) 0.01 to 5% by mass of an ashless antioxidant, wherein said composition contains substantially no metal salts of dithiophosphoric acid and has a sulfur content of 0.2% by mass or less, each percentage being based on a total mass of the composition.

The invention discloses a diethoxy phosphorothioate organic phosphorus pesticide haptens and a method for preparing the same. The haptens are products of nucleophilic substitution of diethylthiophosphoryl chloride and phenol derivates with a carboxyl or an amine acid. The invention provides a series of haptens aiming at a common structure of the organic pesticides of diethoxy phosphorothioate. The haptens are similar to the counterparts of organic pesticides having a common structure of the diethoxy phosphorothioate in terms of molecular structure, stereochemistry and electron distribution, wherein phenol derivative arms which have carboxyls and vary in length are introduced onto the oxygen atoms of the diethoxy phosphoramide to be bound with carrier proteins. The haptens and the metod lay a technical foundation for the preparation of antibodies of diethoxy phosphorothioate organic phosphorus pesticides and the development of quickly testing products.

A lubricant composition is provided as follows:

At least 90% of a base grease;

(a) a thiadiazole poly(ether)glycol complex in an amount which provides about 1500 to 3500 ppm sulfur;

(b) molybdenum dihydrocarbyldithiophosphate in amount which provides about 77 to 450 ppm molybdenum; and

(c) zinc dihydrocarbyldithiophosphate in an amount which provides about 600 to 1000 ppm zinc. An additive composition for grease, consisting of components (a), (b) and (c), is also provided.

A lubricating oil composition having a sulphated ash content of less than or equal to 1.2 mass % as determined by ASTM D874 and a phosphorous content of less than or equal to 0.12 mass % as determined by ASTM D5185, which lubricating oil composition comprises or is made by admixing: an oil of lubricating viscosity, in a major amount; an oil-soluble or oil-dispersible polymeric friction modifier as an additive in an effective minor amount; and, an oil-soluble or oil-dispersible dihydrocarbyl dithiophosphate metal salt as an additive in an effective minor amount.

The invention discloses a diethoxy thiophosphate organophosphorus pesticide antibody and a preparation method and the application thereof. The antibody of the invention is prepared by introducing appropriate active arms to a diethoxy thiophosphate structure to prepare immunity hapten, coupling the hapten with bovine serum albumin to prepare immunity antigen and immunizing the originally immune New Zealand white rabbits; and a multi-residue ELISA detection method of the diethoxy thiophosphate organophosphorus pesticide is established with coatingen. Based on the detection method established by the antibody, more than 12 types of the diethoxy thiophosphate organophosphorus pesticide can be detected simultaneously, the limit of detection is 0.0002-3.938mug/ml and the detection method is suitable for on-site supervision of pesticide residues and rapid screening with high flux.

The invention provides a composite collecting agent for sulphide ore and a preparing method thereof. The composite collecting agent comprises 10-15% of dialkyl monothiophosphate, 15-30% of alkyl monothioformate, 15-40% of dialkyl dithiophosphate, 5-10% of cosolvent, 13-15% of dialkyl dithiocarbamate and 10-20% of water. The composite collecting agent has the advantages that in use, the usage amount is small, cost is low, and the agents are added conveniently; the recovery indexes of metallic copper, gold, silver and the like are improved well; the composite collecting agent has composite action, collecting performance and foaming characteristic in the flotation process, also has the good selectivity and a superior collecting function for useful metal in clay-contained minerals, and can comprehensively recycle the useful metal minerals from complex minerals.

The invention discloses preparation and an application method for iridium complex phosphorescent materials. A series of dithio compounds such as N,N-disubstituted dithio carbamates, or O,O-disubstituted dithio phosphates and alkoxy-substituted dithio formats are subjected to dissociation of dichloro bridged complex of iridium, and iridium complexes shown as a formula (I), a formula (II) or a formula (III) are generated. The iridium complexes can be used for detecting mercuric ions and acetonitrile; and through influence of Hg2+ on physical, electrochemical and sensing properties of the iridium complexes, the iridium complex phosphorescent materials identify the Hg2+ in high selectivity, high sensitivity and quick response, the turn off phenomenon occurs, and a phosphorescent sensor for detecting the Hg2+ can be manufactured. By changing a solvent for detecting, a turn on phenomenon occurs and a novel sensor for detecting acetonitrile can be manufactured.

The invention discloses a lubricating oil composition with stable friction performance. The lubricating oil composition comprises mixed base oil, polymethacrylate, zinc dialkyl dithiophosphate T203, phosphorothioate amine salt 307, nanometer boronation rare earth additives and other functional additives. The mixed base oil comprises synthetic base oil and low-viscosity mineral base oil, and the other functional additives comprise at least one type of each category of cleaning agents, dispersing agents, antirust agents and antioxidants. The lubricating oil composition has the advantages of stable friction coefficient, low additive adding quantities and particular applicability to lubricating oil for automatic transmissions of large vehicles.

The invention discloses an enzyme-linked immunosorbent assay kit for detecting diethoxy phosphorothioate organic phosphorus pesticide, which comprises a kit body, an ELISA plate coated with the antigen of the diethoxy phosphorothioate organic phosphorus pesticide, an antibody solution against diethoxy phosphorothioate organic phosphorus pesticide, a second anti-solution, a standard solution, a concentrated extracting solution, a substrate solution, a buffer solution of the substrate, a concentrated washing liquid and a stopping liquid. The organic phosphorus pesticide refers to the organic phosphorus pesticide containing the common structure of diethoxy phosphorothioate, in particular parathion, coumaphos, quinalphos, triazophos, phoxim, dichlofenthion, phorate, chlorpyrifos, bromophos ethyl, isazofos, diazinon, sulfotep and a mixture thereof. The enzyme-linked immunosorbent assay kit can be used to detect the organic phosphorus residues in fruits, vegetables, soil and water, and isconvenient in operation, high in sensitivity, low in price and is suitable for high-throughput screening monitored on spot.

The invention provides water-soluble quasi-dry cutting liquid as well as a preparation method and use thereof. Mother liquid of the water-soluble quasi-dry cutting liquid is prepared from the following ingredients in percentage by weight: 30-50% of tall oil, 10-20% of petroleum sodium sulfonate, 10-20% of sorbitan fatty-acid ester, 10-20% of fatty alcohol-polyoxyethylene ether sodium phosphate, 5-10% of triethanolamine borate, 2-5% of zinc dialkyl dithiophosphate, 2-5% of alkylphenol ethoxylates and the balance of deionized water. According to the preparation method of the water-soluble quasi-dry cutting liquid, the mother liquid and water are mixed according to a weight ratio of 1:(1-5) and are stirred, 0-0.1% of sodium polyacrylate and 0-0.2% of potassium sorbate are added simultaneously, and the water-soluble quasi-dry cutting liquid is obtained after a mixture is stirred to be uniform. The water-soluble quasi-dry cutting liquid is suitable for being used in a manner of being cooperated with a quasi-dry cutting minimal-quantity-lubrication device and is applied to the lubrication and cooling of sawing, milling, drilling, punching, planning and turning processes in the fields of metal processing. The water-soluble quasi-dry cutting liquid provided by the invention is used in a manner of being cooperated with the quasi-dry cutting minimal-quantity-lubrication device, so that the usage amount of the cutting liquid can be reduced to below 10% that of the original usage amount and the damage to environments and injury to workers are reduced.