100 results about "Phosphorodithioic 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.

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. %.

The invention relates to a flotation agent for a copper mine and discloses a high-efficiency collecting agent for a high-sulfur copper mine. The collecting agent comprises the following materials in parts by weight: 30-40 parts of alkyl phosphorodithioic acid thioether ester, 25-35 parts of cyanoethyl diethyl dithionocarbamate, 10-20 parts of alkyl xanthic acid propionitrile ester and 10-15 parts of sulfur-nitrogen ester. The collecting agent for the high-sulfur copper mine has double functions of collecting and foaming, is good in selectivity and high in collecting ability, can realize high-efficiency separation of copper from sulfur in a low pH value (approximately 5) range, can effectively reduce the consumption of lime in the floatation process, can effectively increase the grade and recovery rate of concentrate, and has a wider application scope.

One compound of composite addition agent with oxidation resistance and abrasive resistance applied in internal combustion engine oil contains the following components: (I) phenol antioxidant, the content is 0-35%; (II) amine antioxidant, the content is 0-35%; (IH) sulfur and azote compound, the content is 0-35%; (IV) molybdenum naphthenate or dialkyl molybdenum dithiocarbamate, the content is 10-35%; (V)zinc phosphorodithioic acid, the content is 20-50%; among them, the content of at least one of component (I), (II), (III) is not zero. The above composite addition agent has a content of 1.5-3.5% in the internal combustion engine oil compound. The compound of composite addition agent and internal combustion engine oil provided by this invention has the effects of oxidation resistance, abrasive resistance and extreme pressure, furthermore, with low content of phosphor, which agrees with the demand of SJ gasoline and oil and the standard of the phosphor content for SJ gasoline and oil.

A lubricating oil for the convertible fuel motor of the natural gas and the petrol is made up of the paraffin neutral oil 58%-80%, the residual oil 9%-20%, the ethylene-propylene copolymer 2%-6%, the poly a olefin adjusted by the hydrogen 0.6%-1.0%, the methyl silicone oil 0.0005-0.001%, the calcium alkylbenzenesulfonate with the low base number 0.5%-1.5%, the calcium alkylbenzenesulfonate with the high base number 1.0%-2.0%, the single allyl succinyl imine 1.5%-3.0%, the double allyl succinyl imine 1.5%-3.0%, the sulfur phosphorus secondary alcohol zinc salt 0.8%-2.8%, the dialkyl phosphorodithioic acid molybdenum 0.2%-0.7%, the alkyl diphenylamine 0.2%-0.7%, the high molecular phenol with the ester 0.2%-0.7%, the triazol 0.2%-0.7%.The product can meet the need of the convertible fuel motor after the small and the pilot plant.

The invention aims at floatation separation of arsenic from sulfur in arsenic-containing pyrites. The floatation separation comprises the following steps of: adjusting an ore pulp to keep the pH value of the pulp between 9 and 10; adjusting the potential of the ore pulp to between 350 and 380 millivolts by adding oxidant medicaments of sodium persulfate and calcium hypochlorite; introducing air to increase oxygen content in the ore pulp; and stabilize electrochemical conditions of mineral floatation. During the floatation separation of the pyrites from the arsenopyrites, the potential of the ore pulp is stabilized by adding the oxidant medicaments of sodium persulfate and calcium hypochlorite; the arsenopyrite is suppressed by using a new collector of dianilino dithiophosphoric acid, and regulators of sodium silicate and sodium humate according to a principle of an electrochemical floatation process to make the pyrites such as arsenopyrites, iron pyrites, pyrrhotites and the like acted with a medicament selectively in the subsequent floatation process; and the floatation separation of the pyrites from the arsenopyrites is performed so as to form a sulfur concentrate with low arsenic content.

The invention discloses a selection method of lead and zinc sulfide ore, and belongs to the technical field of beneficiation. The selection method comprises the steps of milling of raw ore, flotationof lead and flotation of zinc, wherein during rough flotation of lead, lime, calcium hypochlorite, zinc sulfate, sodium sulfite, sodium sulfide, dimethyl dicarbonate, ethyl thio carbamate, sodium n-butylxanthate, dianilinodithiophosphoric acid, diphenyl amino phosphorodithioic acid and sodium carbonate are added; during fine flotation of lead, lime, zinc sulfate, sodium sulfite and sodium sulfideare added; during scavenging of lead, lime, calcium hypochlorite, zinc sulfate, sodium sulfite, sodium sulfide, dimethyl dicarbonate, ethyl thio carbamate, dianilinodithiophosphoric acid, diphenyl amino phosphorodithioic acid and sodium carbonate are added; during rough flotation of zinc, lime, copper sulfate, ammonium sulfite, sodium n-butylxanthate and terpenic oil are added; during fine flotation of zinc, lime is added; and during scavenging of zinc, lime, copper sulfate, ammonium sulfite, sodium n-butylxanthate and terpenic oil are added. By adoption of the selection method of lead and zinc sulfide ore, the problem that when a traditional flotation method is used for selecting lead and zinc sulfide ore, the recovery rate of lead and zinc is low is solved.

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 provides a lubricating composition containing: (a) a major amount of an ester of a polycarboxylic acylating agent; and (b) at least one compound from: (i) a metal hydrocarbyl dithiophosphate, or (ii) a viscosity modifier, wherein the metal hydrocarbyl dithiophosphate contains at least one hydrocarbyl group including an aryl functional group, a substituted-aryl functional group or mixtures thereof. The composition is suitable for high temperature engines, particularly a ceramic containing engine to provide at least one of increased fuel economy, decreased emissions of particulate matter, increased oxidative stability and decreased deposit formation.

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.

One lube oil compound with the quality of oxidation resistance, abrasive resistance, and anti-attrition, based on total weight of the compound, includes the following components: (a) zinc salt, ntoquita nantokite, magnesium salts, calcium salt and barium salt of dialkyl phosphorodithioic acid, the content is 0.1-3.5%; (b) compound antioxidant of amine antioxidant and phenolic ester antioxidant, the content is 0.2-3.0%; (c) molybdenum salt of dialkyl dithioic organic acid, the content is 0.05-1.5%; (d) monohydric or polyhydric alcohol ester with abrasive resistance and anti-attrition produced by monohydric alcohol or diatomic alcohol and alkyl, arene or alkyl phenol in place of carboxylic acid, the content is 0.05-1.5%; (e) zinc salt, sodium salt, magnesium salts, calcium salt and barium salt dialkyl dithiocarbamate or dialkyl dithiobenzoic acid, the content is 0.05-1.5%; (f) grease oil, the residue.

The invention relates to the technical fields of soil remediation and environmental protection, in particular to a heavy metal contaminated soil/bottom mud stabilizer. The heavy metal contaminated soil/bottom mud stabilizer is prepared from soluble ferric salt, dibutyl dithiophosphate and butyl dithiocarbonate in proportion. A heavy metal repair agent is low in cost, can effectively eliminate harm of heavy metal ions in soil, and has relatively good stabilizing effect on arsenic and other heavy metals in arsenic-containing composite heavy metal contaminated bottom mud under an acid condition, so that the defect that an existing product is poor in stabilizing effect on the arsenic-containing composite heavy metal contaminated bottom mud is overcome. The heavy metal contaminated soil/bottom mud stabilizer can be applied to stabilizing treatment of heavy metal contaminated muddy bottom of arsenic, lead, cadmium, copper, zinc and chromium. The heavy metal contaminated soil/bottom mud treated by the stabilizer can be used for roadbed building filler. The heavy metal contaminated soil/bottom mud stabilizer has the effects of protecting the environment, changing waste into things of value and increasing a waste utilization rate, and has a considerable economic value.

A process for the preparation of multi-functional additive, amino di(alkylcyclohexyl0) phosphorodithioate, for use as an additive in a lubricant composition so as to impart improved coefficient of friction, wear reduction, antioxidant and extreme pressure properties, including the steps of (a) hydrogenating distilled technical cashew nut shell liquid with palladium or nickel or platinum catalyst; to fully hydrogenate the olefinic chain and aromatic ring of the precursor; (b) reacting fully hydrogenated technical cashew nut shell liquid with phosphorus pentasulfide to obtain unpolymerized hydrogenated cashew nut shell liquid phosphorodithioic acid, the reaction being carried out at a temperature ranging from 20 to 140.degree. C. ; and (c) condensing the unpolymerized fully saturated cashew nut shell liquid phosphorodithioic acid with at least one amine to obtain the amino di(alkylcyclohexyl) phosphorodithioate. A lubricant containing a major proportion of a material selected from the group consisting of an oil of lubricating viscosity and a grease; and remainder an additive including amino di(alkylcyclohexyl)phosphorodithioate prepared by the foregoing process.

The invention relates to a preparing method of flame-retardant water-borne coating. Water, emulsifier and methyl acrylic acid are added in, the temperature is raised to 50 DEG C, stirring is performed for 25 min, A monomers are added in, and emulsification is performed for 25 min to 45 min; backflow water is led in when the temperature is raised to 75 DEG C, heat preservation is performed when the temperature is raised to 80 DEG C, initiators are dropwise added, the drop time is 1 h to 4 h, and reaction is performed for 4 h to 5 h after dropping is finished; then, di(2-ethylhexyl) molybdenum dithiophosphate is added, stirring reaction is performed for 1 h to 4 h after dropping is finished, and nuclear layer emulsifier is obtained; B monomers and initiators are dropwise added into the obtained nuclear layer emulsifier, the drop time is 1 h to 3 h, stirring reaction is performed at the temperature of 70 DEG C to 85 DEG C for 2 h after the dropping is finished, then, sodium molybdate is added, stirring reaction is performed at the temperature of 75 DEG C to 85 DEG C for 1 h to 3 h, crosslinking agents are added, reaction is performed at the temperature of 70 DEG C to 85 DEG C for 1 h to 2 h, the temperature is lowered to 50 DEG C, dispersion liquid A, zinc dialkyl dithiophosphate and emulsifier are added, the reacting time is 40 min, reduction materials are added in, stirring reaction is performed at the temperature of 75 DEG C to 85 DEG C for 1 h to 3 h, the pH value is adjusted to 7 to 8 by adding ammonia water, and the flame-retardant water-borne coating is obtained. Due to the preparing method, the flame-retardant performance of resin films made from acrylic ester can be substantially improved, and the defect that traditional resin films made from acrylic ester becomes yellow is overcome.

The invention discloses a plastic base material film for packaging. The film is prepared from the following raw materials in parts by weight: 15-18 parts of low-density polyethylene (LDPE), 40-45 parts of linear low-density polyethylene (LLDPE), 34-40 parts of metallocene linear low-density polyethylene (mLLDPE), 10-15 parts of SG-1 polyvinyl chloride, 3-5 of epoxy linseed oil, 2-3 parts of polyethylene wax powder, 1-2 parts of distearoyl isopropoxy aluminate, 8-12 parts of kieselguhr, 2-4 parts of poly-4-methyl-1-amylene, 5-10 parts of light calcium carbonate, 2-3 parts of phosphorodithioic acid, 1-2 parts of phthalate, 1-2 parts of smoke sheet rubber, 0.5-0.8 parts of zinc stearate, 1-2 parts of 3-aminopropyltrimethoxysilane, 1-2 parts of ferrocene and 1-2 parts of modified wood ashes. The plastic base material film for food packaging has good separation performance and air tightness, good anti-polluting performance, excellent pressure resistance and impact resistance as well as the characteristics of high heat-sealing strength and good heat sealing performance.

This invention relates to modified lubricating oil, especially antifriction green lubricating oil, it includes following weight percentage constituents, base oil 86-96%, engine oil complexing agent 3-13.8%, dialkyl phosphorodithioic acid oxygen molybdenum0.2-3%. When the lubricating oil made by production process request used on vehicle engine, it can greatly improve lubricating and fuel oil economical efficiency. The fuel oil is economized, car oil consumption is reduced 12.4%, out car noise reduces 2.4%, and inner car noise reduces 3.4%. The additive is easy to make, cost is low and is easy to extend.

The invention relates to a method for preparing a flame-retardant core-shell type waterborne acrylate resin coating. The method comprises the following steps of adding water, an emulsifier and acrylic acid, raising the temperature to 40 DEG C, stirring for 30 minutes, adding a monomer A, emulsifying for 15-45 minutes, raising the temperature to 70 DEG C, starting to introduce recirculation water, raising the temperature to 80 DEG C, reacting for 2 hours, dropwise adding an initiator for 2-4 hours, and reacting for 1-2 hours; adding manganese amino acid, stirring and reacting for 1-4 hours at 80 DEG C, adding a metal salt to adjust the pH value to be 4, adding manganese acetate, stirring and reacting for 1-2 hours at 60 DEG C to obtain a core layer emulsion; simultaneously dropwise adding a monomer B and an initiator into the core layer emulsion for 1-3 hours, stirring and reacting for 3 hours at 70-85 DEG C, adding a crosslinking agent, reacting for 1-3 hours at 70-90 DEG C, cooling to 40 DEG C, adding molybdenum di(2-ethylhexyl)phosphorodithioate and an emulsifier, reacting for 40 minutes, adding the material B, stirring and reacting for 1-3 hours at 65-85 DEG C and adding aqueous ammonia to adjust the pH value to be 7-8 to obtain the flame-retardant core-shell type waterborne acrylate resin coating. By virtue of the preparation method, the flame resistance of the acrylate resin can be greatly improved and the shortcoming of yellowing of a traditional acrylate resin film can also be improved.

The invention discloses a rice cadmium-reducing and yield-increasing agent. The rice cadmium-reducing and yield-increasing agent is mainly produced by mixing the following components: a component A which is one of or a composition of any two of cyclodextrin and derivatives of the cyclodextrin, a component B which is one of or a composition of any two of zinc sulfate, manganese sulfate, ferrous sulfate and copper sulfate, and a component C which is one of or a composition of any two of dialkyl dithiophosphates; and the mass fractions of the component A, the component B and the component C in the rice cadmium-reducing and yield-increasing agent are 1%-90%, 1%-90% and 1%-98% correspondingly. The invention further provides a production method of the rice cadmium-reducing and yield-increasing agent. The rice cadmium-reducing and yield-increasing agent is small in using amount, treatment is rapid, easy, convenient and not limited by the site, the concentration and the like, long-distance automatic spraying control by an unmanned aircraft can be further achieved, and the rice cadmium-reducing and yield-increasing agent is especially suitable for cadmium-standard-exceeding treatment of rice and emergency treatment of complex heavy metal pollution accidents in case of emergencies and has good application prospects.

The invention discloses a preparation method of a diisooctyl dithiophosphate additive of hydraulic oil. The preparation method comprises the following steps: adding excessive phosphorus pentasulfide of which the weight ratio of phosphorus is 27.6%-27.8%; dropwise adding a required amount of isooctanol; maintaining the temperature of a flask to be 95 DEG C until complete reacting; filtering out solid phosphorous pentasulphur; adding excessive zinc oxide; adding prepared phosphorodithioic acid; maintaining the temperature of the flask at the temperature of 100 DEG C and insulating for about 1 hour, and vacuumizing and distilling under reduced pressure; and filtering a reagent to obtain diisooctyl dithiophosphate. The zinc oxide comprises 25-30% of direct-method zinc oxide and 70-75% of indirect-method zinc oxide, and the excessive range of the zinc oxide is 5-8%. When the diisooctyl dithiophosphate additive prepared by the technical scheme of the invention is used on the hydraulic oil, the water separation performance of the hydraulic oil is obviously improved, a production process is simple, the use amount of the zinc oxide is reduced, a catalyst is omitted, treatment of wastes in the later period is relieved, and the production cost is reduced obviously.

The present invention provides a process for preparing a highly pure form of malathion having a reduced level of toxic impurities. In addition, the malathion prepared by the process of this invention is storage stable. The level of toxic impurities in the malathion, e.g., isomalathion, O,O,S-trimethyl phosphorodithioate (MeOOSPS), O,O,S-trimethyl phosphorothioate (MeOOSPO), O,S,S-trimethyl phosphorodithioate (MeOSSPO), malaoxon, isomalathion, diethyl fumarate, methyl malathion, dimethyl malathion, O,O-methyl,ethyl-S-(1,2-dicarboethoxy)ethyl-phosphorodithioate are lower than that of any other commercial preparation of malathion that may be used for pharmaceutical purposes.

The invention relates to a lubricating grease composition for a cotton picker and mainly solves the problem that the flowability of lubricating grease is poor in the prior art. The lubricating grease composition provided by the invention comprises the following components in percentage by weight: 3-10% of thickening agent, 84-95% of basic oil with a kinematic viscosity which is 10-100 sq.mm/s anda condensation point which is not higher than 10 DEG C below zero and 2-8% of additive comprising 1-4% of dialkyl phosphorodithioic acid (a), 1-3% of dialkyl aminodithioformic acid (b) and 0-1% of antirust additive (c). The lubricating grease manufactured by the invention has good low-temperature flowability and good pumping performance; the similar viscosity at 30 DEG C below zero is detected byusing an SH/T0048 standard method and numerical values are all less than 200 Pa*S, so that the lubricating grease composition has a certain superiority when being used for the cotton picker.