31results about "Group 5/15 element organic compounds" patented technology

The invention relates to a cyclic production method of glyphosate, belonging to the technical field of pesticide production techniques. The production method comprises steps as follows: the raw material dimethyl phosphite is subjected to an alkyl ester method to obtain glyphosate and a glyphosate mother solution; the glyphosate mother solution is treated to obtain a secondary alkali mother solution; the secondary alkali mother solution is subjected to catalytic preoxidation, high-temperature high-pressure air electrocatalytic degradation and liquid membrane extraction to obtain a liquid membrane concentrated solution and a saliferous liquid membrane diluted solution; the liquid membrane concentrated solution is subjected to active carbon decoloration, concentration by evaporation, and high temperature polymerization to obtain sodium tripolyphosphate; the saliferous liquid membrane diluted solution is filtered by a nanofiltration membrane to obtain a membrane concentrated solution and a membrane diluted solution; the membrane concentrated solution returns to the catalytic preoxidation step to be recovered; the membrane diluted solution enters an MVR (mechanical vapor recompression) system to be subjected to concentration by evaporation, thereby obtaining sodium chloride crystal, distilled water and a mother solution; and the sodium chloride crystal, distilled water and mother solution are respectively utilized. The invention lowers the production cost, enhances the utilization ratio of the product, reduces the discharge of waste liquor in the glyphosate production procedure, is environment-friendly, and has obvious comprehensive economic benefit and social benefit.

The invention discloses a phosphor-silicon-containing aggregated flame retardant and a preparation method thereof. The preparation method comprises the following steps: adding 10-(2,5-dihydroxy phenyl)-9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and an acid-binding agent into a reactor loaded with a burette, a condensing tube and a nitrogen protection device, heating to 40 to 100 DEG C; weighing R1, R2-dichlorosilane, adding a solvent, and adding the mixture into the burette; adding the mixture at the temperature of 40 to 100 DEG C dropwise, and performing a thermal reaction for 2 to 10 hours after finishing of dropping; adding a precipitant, performing suction filtration, washing filter cakes with the precipitant, and drying to obtain the phosphor-silicon-containing aggregated flame retardant. The phosphor-silicon-containing aggregated flame retardant has high phosphor content and silicon content, abundant carbon sources, high char forming characteristic, superior flame retardance and thermal stability, and can be applied to high-molecular materials such as flame-retardant polypropylene, polystyrene and epoxy resin.

PCT No. PCT/JP94/00237 Sec. 371 Date Oct. 23, 1995 Sec. 102(e) Date Oct. 23, 1995 PCT Filed Feb. 17, 1994 PCT Pub. No. WO94/19314 PCT Pub. Date Sep. 1, 1994The object of the invention is to provide a lipid device functionally equivalent to the so-called cationic liposome and of lesser toxicity and a lipid or the like as a component of the device. The compound of the invention includes but is not limited to 3-O-(4-dimethylaminobutanoyl)-1,2-O-dioleylglycerol, 3-O-(2-dimethylaminoethyl)carbamoyl-1,2-O-dioleylglycerol, 3-O-(2-diethylaminoethyl) carbamoyl-1,2-O-dioleylglycerol and 2-O-(2-diethylaminoethyl) carbamoyl-1,3-O-dioleoylglycerol. The device of the invention comprises such a lipid and a phospholipid. By administering a double-stranded RNA, for instance, together with the device of the invention, the double-stranded RNA can be safely delivered to the site of action.

A compound that emits fluorescence and delayed fluorescence is provided as a material for an organic electroluminescent device of high efficiency, and an organic photoluminescent device and an organic electroluminescent device of high efficiency and high luminance are provided using this compound. The compound of a general formula (1) having a triphenylene ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.

The invention relates to phosphorus-containing vegetable oil based flame-retardant polyol and a preparation method and application thereof. The preparation method of the phosphorus-containing vegetable oil based flame-retardant polyol comprises the following steps: carrying out epoxide reaction on tung oil methyl ester with hydrogen peroxide and methanoic acid under the catalyzing effect of a home-made phase transfer catalyst at first to prepare multi-functionality-degree epoxidized tung oil methyl ester; reacting the obtained epoxidized tung oil methyl ester with reactive-hydrogen-containing DOPO (DOPO belongs to phosphorus-containing phenanthrene ring and heterogeneous ring compound, and the full name of DOPO is 9,10-diamine-9-oxygen heterocyclic-10- phosphaphenanthrene-10-oxide) to obtain the phosphorus-containing vegetable oil based flame-retardant polyol. The obtained polyol is a flame retardant, the synthesized structural flame-retardant vegetable oil based polyol is used in hard polyurethane flame-retardant foam, mechanical strength and flame retardance of the foam are improved, and a preparation process is simple, convenient to operate and easy to obtain. The phosphorus-containing vegetable oil based flame-retardant polyol is compounded with tris( 2-chloropropyl) phosphate, phosphorus-nitrogen synergistic flame retardant effect is good, the use amount of a flame retardant can be reduced, the flame retardant effect is much better than the flame retardant effect of the tris( 2-chloropropyl) phosphate which is used independent, and the oxygen index (LOI) can reach 29%.

The invention provides a method for recovering P507 from extraction raffinate wastewater and belongs to the field of P507 recovery from extraction raffinate wastewater. The method for recovering P507from extraction raffinate wastewater comprises the specific steps that the extraction raffinate wastewater is collected and guided into a wastewater tank, a filtering medium is added, to make tiny oilparticles polymerized and floating on the surface of a material; standing is performed, and suspending organic matter is recovered by adopting a vacuum device after oil-water layering; P507 recyclingis achieved through squeezing of a plate-and-frame filter press. The extraction agent P507 is effectively recovered from extraction raffinate wastewater, the extraction agent consumption is reduced,the treatment cost for follow-up wastewater is also reduced, and stable wastewater up-to-standard discharge is well guaranteed.

The invention discloses a method for preparing cyclic phosphate or cyclic phosphite. The method comprises the steps: (1) mixing a substance A with an alcoholic compound so as to obtain a mixture, andthen, heating the temperature of the mixture to 110 DEG C to 150 DEG C, wherein the substance A is triphosphate or triphosphite; (2) adding an organic amine catalyst into the mixture, and carrying outan ester exchange reaction for 5 to 9 hours so as to obtain a prepared substance, wherein the prepared substance is cyclic phosphate when the substance A is triphosphate, and the prepared substance is cyclic phosphite when the substance A is triphosphite; (3) carrying out distillation to remove impurities. According to the method, the cyclic phosphate or cyclic phosphite is synthesized in one step by adopting an ester exchange process by adopting organic amine as the catalyst, a solvent is not used, aftertreatment is not required, byproducts can be recycled, and the process route is simple.

The invention discloses a process for recovering wastewater in the production of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and derivatives thereof. The process comprises the following steps of (a) adsorbing an organic substance by virtue of adsorption resin: under an acidic condition that the pH value is 2-5, enabling wastewater to pass through the adsorption resin at a flow rate of 2.0-6.0BV/h; (2) recovering the organic substance, eluting and regenerating the adsorption resin: enabling a sodium hydroxide solution of which the concentration is 2.0%-6.0% to pass through the adsorption resin at a liquid flow rate of 0.2-0.6BV/h, or immersing adsorption resin in the sodium hydroxide solution of which the concentration is 2.0%-6.0% for 1-6 hours; and (3) carrying out retreatment on adsorbed wastewater. According to the process disclosed by the invention, wastewater is treated by virtue of the resin adsorption method, and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and derivatives thereof in the wastewater are comprehensively utilized and recovered and the wastewater is treated to reach the pipe-connecting standards.

The invention discloses a preparation method for a thermal activation compound of a blue light self-emitter and an application thereof. The invention designs and compounds a fluorescent molecule. A molecule linked with an alkyl chain is taken as a peripheral group of the fluorescent molecule and a well-known TADF blue light emitting core is introduced. Due to the introduced alkyl chain, the material is easy to dissolve in frequently used organic solvents, such as methylbenzene, chloroform and chlorobenzene. Meanwhile, influences of the peripheral object unit on thermal, optical and electrochemical performances of a self-emitter are deeply researched; the result proves that the introduced compound is capable of effectively promoting thermal stability and carrier balance performance of a self-emitting material; when non-doped TADF OLEDs are treated with a solution prepared by taking the peripheral group as an emitting layer, device efficiency is ultrahigh (EQE is equal to 6.2% and current efficiency is 10.5 cd A-1) and color is pure and stable, as a result of effective packaging of emitting core and balance of charge transfer of bipolar dendrimers.

Process for the carbonylation of optionally substituted ethylenically unsaturated compounds by reaction with carbon monoxide and a coreactant in the presence of a catalyst system. The catalyst system includes (a) a source of Pt group metal cations, (b) a certain bidentate diphosphine composition.

A method of purifying triethylene tetraamine hexamethylene phosphonic acid (TTHMP) is disclosed. The method includes dissolving a TTHMP crude product into water, adjusting the pH value by using an alkaline compound until reaching strong basicity, adding a poor solvent, allowing an oily compound to be separated from the bottom of the container, allowing the mixture to stand, collecting the oily compound, dissolving the collected oily compound with water, heating until refluxing, adding the poor solvent until a turbid phenomenon occurs, maintaining a refluxing state, adding water again until the solution is clear, stopping heating, allowing the solution to stand and be cooled, allowing an oily compound to be separated from the bottom of the container, collecting the oily compound, repeating the steps to collect the oily compound, dissolving the oily compound with water, adding an acidic compound to adjust the pH value to acidity, adding the poor solvent, allowing an oily compound to be separated from the bottom of the container, allowing the solution to stand, collecting the oily compound, washing the oily compound with a mixed solvent comprising water and the poor solvent, collecting the oily compound, and drying in a vacuum dryer to obtain white solid powder that is a purified TTHMP product. The method is used for separating impurities properties of which are similar in the TTHMP crude product. The yield of the final product is high, and purity is higher than 99%.

The invention discloses water-saving and emission-reducing equipment in a glyphosate technical production process, the water-saving and emission-reducing equipment structurally comprises a purification box, a base, a drain pipe, a disinfection box and a support rod, the drain pipe is connected with a flange at the front end of the disinfection box, the disinfection box is connected with the upper end of the purification box, the support rod is fixed on the upper surface of the base, and the purification box is welded on the upper end of the support rod. The sliding surface is pushed by the elastic strip to be quickly reset, and the rebound strip can be pushed to be quickly reset, so that the telescopic rod can generate impact vibration on the inner wall of the fixed ring, and wet glyphosate technical powder attached to the bottom of the plate surface is vibrated to fall off through the vibration of the telescopic rod impacting the inner wall of the fixed ring; the telescopic frame can be shrunk inwards along the middle fixing block, so that the wastewater can be discharged into the purification box through the telescopic frame and the inner wall of the pipe body, and the flowing speed of the wastewater can be increased through rotation of the rotating ring.

The invention provides a method for artificially synthesizing dioleoyl phosphatidylcholine (DOPC), which comprises the following steps of: using glycerol phosphatidylcholine and oleic acid as raw materials to carry out a condensation reaction, pulping the obtained product, filtering, and recrystallizing to obtain high-purity dioleoyl phosphatidylcholine. The dioleoyl phosphatidylcholine (DOPC) prepared by the method disclosed by the invention can be used as a pharmaceutic adjuvant for various types of medicines such as injections, tablets, capsules and the like.

The invention discloses a method for preparing hexyl-dioctyl phosphorus oxide. The method comprises the following steps: adding dioctyl phosphorus oxide, 1-hexene, an acetic acid solvent and di-tert-butyl peroxide in a PTFE (Polytetrafluoroethylene) reaction kettle, adding a small amount of industrial mixed decene, stirring and dissolving, rising the temperature to be 130 to 140 DEG C, reacting for 12 to 36 hours, detecting and completely reacting under <31>P-NMR (Nuclear Magnetic Resonance), adding 5 to 15 weight percent of diluted hydrochloric acid in a reaction solution for carrying out demulsifying and washing, extracting by using trichloromethane, washing an organic layer to be neutral by using water, evaporating to remove trichloromethane and unreacted olefin through a rotary evaporator, recrystalizing by using ethanol, filtering, and carrying out vacuum drying, thus obtaining white solid. The method for preparing hexyl-dioctyl phosphorus oxide, disclosed by the invention, is simple in steps, is green and environmentally friendly and is good in atom economy, a product is high in purity, separation is easy, and an industrial prospect is obtained; the product is applied to industries of water quality detection and sewage treatment.

The invention relates to a Cu (I) complex luminescent material with a high molar absorption coefficient. The material is composed of hexafluorophosphate anions and coordination cations, and the coordination cations are formed by complexing cuprous ions with ligands POP and ligands L. In the preparation process, the equivalence ratio of three reactants of the ligand POP, the [Cu(CH3CN)4] (PF6) andthe ligand L is 1.2: 1.2: 1. The preparation raw materials are easy to obtain, the process is simple, convenient and safe, and the product is easy to purify and low in cost. The phenanthrene ring andthe pyridine imidazole group are connected in a "-C-three-bonded-C-" manner, so that the pi conjugation degree between molecules is greatly increased, the molecular structure of the Cu (I) complex ismore stable, the visible light absorption capacity is improved by 8-10 times compared with that of the Cu (I) complex connected with the aromatic ring and the pyridine imidazole group through "-C-C-",and the maximum value of the molar absorption coefficient epsilon exceeds 25000 M<-1>cm <-1>; and the storage is convenient.

The invention relates to the technical field of chemical industry and particularly relates to a method for producing pmida. The method comprises the following steps: mixing iminodiacetonitrile and an acid catalyst with water, stirring, heating, controlling the temperature within 40-60 DEG C, adding the mixed liquor of phosphorous acid, ammonium chloride, hydrochloric acid and iminodiacetic acid hydrochloride within 30-60 minutes, adding paraformaldehyde at a temperature not lower than 100 DEG C, reacting for 3-8 hours in a heat preservation manner to obtain pmida suspension, and cooling, filtering, washing and drying the suspension to prepare the pmida. The purpose of the invention is to provide a method for producing pmida, which is simple to operate, high in product yield and small in pollution.

The invention provides a phosphorus carpentine positive ion and a gas-phase preparation and application thereof. The method adopts a mass spectrometry device for gas-phase molecular-ion reaction and includes: dissolving triphenyl methyl bromide in methyl alcohol, wherein a mass spectrometry signal m/z 277 of triphenyl methyl phosphorus positive ion can be detected in an electrospray ionization-mass spectrometry positive ion mode; subjecting a mass spectra peak of m/z 277 to secondary mass spectra fragmentation through collision induced dissociation (CID) to obtain peak fragments m/z 185, namely the diphenyl phosphorous carpentine ion. The method is simple and easy to implement, small organic molecules are detected through reaction of the diphenyl phosphorous carpentine ion and the small organic molecules, the molecular-ion reaction is applied to detection of the trace organic molecules in the air, rapid qualitative and quantitative testing of the small organic molecules can be realized, some isomers can be distinguished according to difference of reaction results, and high flexibility is achieved.

The invention provides a flame retardant. The flame retardant has a structure shown in a structural formula (I) or a structural formula (II) (please see the specification for the structural formula (I) or the structural formula (II)), wherein R1 and R2 are substituted or unsubstituted aryl, arylated alkyl, aliphatic groups or alcyl correspondingly and independently, R2' is R5, arylidene or alkylene, and identical or different in a repeating unit, m is an integer from 0 to 5, n is an integer equal to or greater than 1, the R2' represents a double bond or two single bonds correspondingly, and isnot the double bond simultaneously, when representing the double bond, R3 is an oxygen atom, when representing the two single bonds, R3 is R3a and R3b, wherein the R3a is hydroxyl, when the R3b represents a double bond, R4 is a nitrogen atom, when representing two single bonds, R4 is R4a and R4b, wherein the R4a is a secondary amidogen, and the R4b is connection between the R2' and the R4a in thestructural formula (I) and connection between the R2 and the R4a in the structural formula (II). After the flame retardant is mixed and polymerized with a polymer, the cured polymer is made to have flame resistance of a grade V0 under a standard UL-94.

The invention relates to a method for cleaner production of a vitamin A intermediate product, which is used for preparing a key intermediate product methylene tetraethyl diphosphonate or methylene tetramethyl diphosphonate of vitamin A, wherein the methylene tetraethyl diphosphonate or methylene tetramethyl diphosphonate is further generated by diethoxy (dimethoxy) methane and diethyl (dimethyl) phosphite with presence of an acid catalyst. The method for the cleaner production of the vitamin A intermediate product is simple in operation, short in process, free from use of solvent, free from discharge of wastewater, economic and environment-friendly; and the product is good in selectivity, high in yield, low in cost, and convenient for industrial production.

The invention discloses continuous production equipment of a copolymerized flame retardant monomer and a production method thereof. By adopting a continuous method and a staged differentiation process, two esterification kettles with different process parameters are arranged for esterification reaction, and the material energy in the esterification kettle can be kept constant all the way, so thatthe temperature, pressure, all feeding flows in the reaction process can be maintained constant; through different process conditions in the two kettles, the esterification reaction can still keep thermodynamic equilibrium in different stages; the primary and secondary reaction rates are considered, so that the optimal reaction efficiencies can be kept in the initial middle period of the reactionand the later period of the reaction. According to the method, manual operation is few, the degree of automation is high, the reaction efficiency and the production efficiency are high and the productquality is stable; the content of diglycol is controlled in a low level, the lowest content of diglycol per 100mg/kg phosphorus in the synthesized flame retardant monomer can reach 0.11%wt, and the acid value range of the flame retardant monomer is 63.8-115.3mgKOH/g.

The invention discloses a trimethyl phosphate preparation method, which comprises following steps: carrying out a mixing reaction on methanol and phosphorus oxychloride, removing hydrogen chloride gas under a negative pressure during the reaction process, carrying out high-negative-pressure low-temperature distillation on the remaining methanol after the reaction, and carrying out rectification to obtain trimethyl phosphate. Compared with the prior art, the preparation method of trimethyl phosphate has the advantages that no wastewater is generated, the wastewater treatment cost is reduced, and environmental protection is facilitated; dangerous chemical products are not used, so that the safety is high; excessive methanol in the reaction can be recycled, so that the preparation cost of trimethyl phosphate is further reduced; and the purity of the prepared trimethyl phosphate is greater than or equal to 99.5%, and the yield is greater than or equal to 90%.