109 results about "Phosphonium chloride" patented technology

The invention relates to a kind of chiral diphosphite ligands, an iridium composite catalyst thereof, a preparation method and application thereof. The ligands are obtained through using chiral (R)-(S)-1-dimethylamino ethyiferroene as raw materials to react with diphenyl phosphonium chloride under the effect of butyl lithium and then to carry out displacement reaction with diaryl phosphine alkane. The chiral diphosphite ligands respectively act with homotropilidene compositions of iridous chloride, tetrabutyl ammonium iodide and glacial acetic acid, and imine asymmetrical hydrogenization catalysts can be obtained. When the iridium-diphosphine catalysts are used for catalyzing 2-methyl-6-ethyl-N-methylene aniline (EMA-imine) hydrogenization reaction, (S)-N-(1-anisyl-2-propyl)-2-methyl-6- ethylaniline ((S)-NNA) can be obtained, and the antimer excessive value (ee) can reach 86.5 percent. The (S)-NNA and chloracetyl chloride carry out acylation reaction to obtain (S)-metolachlor with the ee value of 86 percent. Thereby, the ligands provided by the invneiton can be used for synthesizing chiral herbicidal chemicals of (S)-metolachlor.

The invention provides a method for synthesizing cholesterol by using stigmasterol degradation products as raw materials. The method comprises the following steps: 1) performing an etherification reaction on 3-carbonyl-4-pregnene-22-aldehyde and triethyl orthoformate to obtain 3-ethyoxyl-3,5-pregnadiene-22-aldehyde; 2) preparing a 3-methylbutyltriphenyl phosphonium chloride solution; 3) adding potassium tert-butoxide into the 3-methylbutyltriphenyl phosphonium chloride solution, performing a wittig reaction on the 3-methylbutyltriphenyl phosphonium chloride solution and the 3-ethyoxyl-3,5-pregnadiene-22-aldehyde to obtain 3-ethyoxyl-3,5,22-triene cholestane; 4) catalyzing the 3-ethyoxyl-3,5,22-triene cholestane to perform a selective hydrogenation reaction to obtain 3-ethyoxyl-5-ene cholestane; 5) performing a reaction on the 3-ethyoxyl-5-ene cholestane and acetic anhydride to obtain 3-acetyl-5-ene cholestane; 6) performing a hydrolysis reaction on the 3-acetyl-5-ene cholestane to obtain the cholesterol. The synthesizing method is simple in process, and the mole yield of the cholesterol exceeds 85 percent by using the stigmasterol degradation products which are cheap and easily obtained as the raw materials; the production cost is low, the process is environmentally friendly, and the method is economical and environmentally friendly, and facilitates industrial implementation.

The invention provides a method for synthesizing cholesterol by using pregnenolone as a raw material. The method comprises the following steps: 1) adding potassium acetate into methyl alcohol, and performing a reaction on sulfonate to obtain 6-methoxyl-3,5-cyclo-5alpha-pregn-20-one; 2) performing a reaction on triphenylphosphine and 1-chloro-4-methylpentane in an aprotic solvent to obtain a 4-methylbutyltriphenyl phosphonium chloride solution; 3) adding potassium tert-butoxide into the 4-methylbutyltriphenyl phosphonium chloride solution, and performing a wittig reaction; 4) under the catalysis of a rhodium catalyst, performing an asymmetric hydrogenation reaction to obtain 6-methoxyl-3,5-cyclo-5alpha-cholestane; 5) performing a catalytic hydrolysis deprotection reaction by using sulfuric acid to obtain the cholesterol. The method provided by the invention has the advantages that six-step reactions in the conventional method are simplified into four-step reactions, and a ring-opening reaction in which a great number of hydrochloric acid and a large number of zinc powder are consumed in a route of using saponin as an initial raw material. The synthesizing method is simple in process, the consumption of the raw material and auxiliary materials is low, and the mole yield is high; the method is economical and environmentally friendly, and facilitates industrial implementation.

The invention relates to a flame-retardant jean fabric. The flame-retardant jean fabric is prepared by comprising the following steps: (1) placing jean fabric in a jig dyeing machine, adding water and desizing enzyme for processing, then discharging liquid and washing with water; (2) enzyme washing: adding the desized jean fabric, water and neutral cellulose enzyme into the jig dyeing machine, performing temperature rise, discharging liquid and cleaning with water; (3) flame retardant padding-batching: mixing tetrakis hydroxymethyl phosphonium chloride, urea, etherified hexamethylol melamine resin and penetrating agent JFC to obtain flame-retardant finishing liquid, padding and batching the jean enzyme-washed fabric into the flame-retardant finishing liquid, performing twice padding and twice batching; (4) ammonia fumigation: performing ammonia fumigation to the flame retardant-padded-and-batched jean fabric in an ammonia fumigation flame-retardant machine; and (5) later-stage arrangement: performing once padding and once batching to the ammonia-fumigated jean fabric in hydrogen peroxide, and storing after padding and batching; and drying after being washed. According to the flame-retardant jean fabric, the excellent flame-retardant property of the jean fabric is endowed, and the added value of the product can be improved.

The invention relates to a polyvinylidene fluoride composite material, a preparation method and applications thereof, and belongs to the technical field of composite materials. A purpose of the present invention is to solve the problem of low content of the polyvinylidene fluoride polar phase in the prior art. The composite material comprises, by weight, 85-95 parts of polyvinylidene fluoride, 0-5 parts of an inorganic additive, and 0.5-10 parts of an organic additive, wherein the organic additive is one or a mixture comprising a plurality of materials selected from tetraphenyl phosphonium bromide, tetraphenyl phosphonium chloride, tetraphenyl phosphonium iodide and tetraphenylphosphine imide according to any ratios. According to the present invention, the alpha phase-to-beta phase conversion of the polyvinylidene fluoride crystal is induced through the inorganic additive and the organic additive, such that the polar phase content in the polyvinylidene fluoride is substantially improved so as to substantially improve the piezoelectric property; and the polyvinylidene fluoride-based film prepared by using the composite material has the high piezoelectric constant, wherein the piezoelectric constant can achieve 25-35 pC/N.

The invention discloses an arrangement antibacterial technology of a hat knitting fabric. The arrangement antibacterial technology comprises the following steps of feeding 1 to 2 parts of hydroxypropyl methyl cellulose, 1.2 parts of guanidine bactericide, 1.8 parts of polyethylene polyamine, and 2.1 parts of nanometer magnesium hydroxide into 20 parts of deionized water by mass, mixing, and uniformly stirring; slowly adding 0.4 parts of sorbitan fatty acid ester, 1.2 parts of schizonepeta volatile oil, 2.5 parts of tetrakis hydroxymethyl phosphonium chloride, and 1.8 parts of barbaloin by mass, continuing to stir, and fully and uniformly mixing, so as to obtain an arrangement liquid; performing antibacterial treatment. The post-arrangement technology of the hat knitting fabric has the advantages that the excellent flame-retardant, antibacterial, anti-wrinkle, and anti-static properties are realized, the washing-resistant property is realized, the antibacterial property of the fabric is improved, the antibacterial effect is good, and the use time is long.

Trace element levels of mercury in crude oil are reduced by first passing the crude oil through a filtration device to generate filtered crude having a reduced concentration of mercury and a reject stream having a concentrated mercury level. In one embodiment, the filtration device is back-flushed to generate the reject stream. In another embodiment, the reject stream comprises a portion of the retentate from a cross-flow filter device. The reject stream is treated with an extractive agent selected from tetrakis(hydroxymethyl)phosphonium sulfate; tetrakis(hydroxymethyl) phosphonium chloride; an oxidizing agent; an organic or inorganic sulfidic compound to extract a portion of the mercury into a water phase for subsequent removal. In one embodiment, the extractive agent is a reductant to convert non-volatile mercury into volatile mercury.

A method for the bleaching and brightness stabilization of lignocellulosic materials is described. The method involves the treatment of lignocellulosic materials, in particular, (a) wood pulps such as thermomechanical pulps (TMP) and chemithermomechanical pulps (CTMP), and (b) papers made from wood pulps, with a water-soluble phosphine or a phosphonium compound preferably containing at least one phosphorus hydroxyalkyl bond/linkage, for example a phosphorus hydroxymethyl bond/linkage (P-CH2OH). One example of such a water-soluble phosphine is the commercially available, tris(hydroxymethyl)phosphine (THP), P(CH2OH)3. One example of such a phosphonium compound is the commercially available, tetrakis(hydroxymethyl)phosphonium chloride (THPC), [P(CH2OH)4]Cl.

The invention discloses a compound disinfectant for circulating water systems, comprising benzyltribenzyl phosphonium chloride, dithiocyano-methane and copper sulfate. When the compound disinfectant is used, if certain amount of penetrant is added, the synergistic effect among drugs can be brought into full play, and not only the antibacterial activity can be effectively improved but also microorganisms can be avoided from generating resistance to drugs due to long-term use of single variety of disinfectants. The compound disinfectant of the invention has good disinfection and algae elimination effects and low use cost, simultaneously solves the problem of resistance of bacteria to common disinfectants and is suitable for circulating cooling water systems, reclaimed water circulating systems, clean drainage recycling systems or other circulating water systems.

A novel tannage comprises the reaction product of a quaternary phosphonium compound (e.g. tetrakis hydroxymcthyl phosphonium chloride or sulphate) with a vegetable tanning agent (e.g. mimosa, chestnut, wattle, tara, myrobolam or quebracho). There is also provided a method for the production of such a tannage.

The invention discloses a flame-retardant finishing method for a polyester fabric. The method comprises the following steps: (1) mixing 1-2 parts of hydroxypropyl methyl cellulose, 8-9 parts of an aluminum zirconium coupling agent and 10-15 parts of tetrahydroxymethyl phosphonium chloride, simultaneously slowly adding 15-20 parts of cyclic phosphonate and 30-35 parts of zirconia, finishing batching within 15-20 minutes, and continuously mixing for 20-25 minutes to prepare a composite flame retardant; (2) impregnating the polyester fabrics in an impregnation solution containing 55-60 percent of composite flame retardant at the temperature of 60-65 DEG C for 1-2 hours; and (3) taking out the polyester fabric, and keeping the temperature of the polyester fabric to be 145-150 DEG C for 3-4 hours. The polyester fabric has high flame-retardant durability comprising washing resistance, resistance to dry cleaning and weather resistance, and color, appearance, handfeel and other physical and mechanical properties of the polyester fabric are not influenced.

The invention provides a novel pure enantiomer amide type phosphinidene bidentate phosphine ligand with the structural formula shown on the right, wherein, the substituent R on the phosphorus atom of the bidentate phosphine ligand is alkyl or aryl. The synthetic methodsynthesis method is as follows: 4,4',6,6' -quadra (trifluoromethyl) biphenyl -2,2'- diamine is lithiated with n-butyllithium at -40 DEG C to 0 DEG C; then the lithiated 4,4',6,6' -quadra (trifluoromethyl) biphenyl-2,2'-diamine is reacted with dialkyl phosphonium chloride or diaryl phosphonium chloride, and heated naturally to room temperature and reacted for 12-24 hours to get the bidentate phosphine ligand through column chromatography. The invention takes chiral 4,4',6,6'-quadra(trifluoromethyl) - biphenyl -2,2'- diamine and various dialkyl phosphine chlorides or diphenyl(or substituted diphenyl group) phosphine chlorides as raw materials to prepare the amide type phosphinidene bidentate phosphine ligand. The invention enables the pure enantiomer amide type phosphinidene bidentate phosphine ligand to be applied to Rh-catalyzed ene amide and asymmetric hydrogenation of alpha-dehydro amino acid esters and achieves very good results, with the product enantioselectivity up to 99%.

The invention discloses a durable flame resistance, electric conduction and ash black dyeing one-step processing method of cotton fabric. According to the method, a flame retardant tetrakis hydroxymethyl phosphonium chloride (THPC) or tetrakis hydroxymethyl phosphonium hydroxide (THPOH) is reacted with graphene oxide (GO), and the hydroxymethyl of the flame retardant is reacted with the hydroxyl or epoxy group of the GO, so that a multifunctional finishing agent with flame resistance, electric conduction and dyeing functions is formed. The multifunctional finishing agent, urea, magnesium chloride and hexamethylolmelamine are prepared into a finishing liquor, the cotton fabric is subjected to padding of the finishing liquor, and the multifunctional finishing agent is subjected to drying andammonia finishing and is firmly fixed on the cotton fabric, so that the durable flame resistance, electric conduction and ash black dyeing cotton fabric is obtained. Flame resistance, electric conduction and ash black dyeing one-step processing method of the cotton fabric is realized through the method, the time is saved, the production efficiency is improved, and the multifunctional finishing agent is tightly combined with the cotton fabric, and the wash resistance is excellent.

The invention discloses a process for finishing knitted fabrics. The process comprises the following steps: adding 1-5 parts by mass of hydroxypropyl methyl cellulose, 3 parts by mass of guanidine bactericide, 5 parts by mass of polyoxyethylene polyamine, and 2 parts by mass of nano-scale magnesium hydroxide into 20-50 parts by mass of deionized water, and mixing and stirring the components uniformly; slowly adding 1 parts by mass of sorbitan fatty acid ester, 2 parts by mass of schizonepeta volatile oil, 3 parts by mass of tetrakis hydroxymethyl phosphonium chloride, and 1 part by mass of barbaloin at the same time, and performing stirring continuously until the components are mixed fully and uniformly to prepare a finishing solution; and then performing antibacterial treatment. By use of the process for final finishing of knitted fabrics for hats, a finished fabric has excellent flame-retardant, antibacterial, anti-wrinkle and antistatic properties, and is strong in washing resistance; and the process can improve the antibacterial property of the fabrics, so that the fabrics are good in antibacterial effect and long in service time.

The invention discloses a flame-retardant knitted fabric. The warp of the fabric is DTY150D/48F, and the weft of the fabric is ATY320D/96F; the fabric is soaked in steeping liquid containing 35%-40% composite finishing agent at the temperature ranging from 70 DEG C to 75 DEG C for five hours to six hours and then is placed at the constant temperature ranging from 155 DEG C to 160 DEG C for five hours to seven hours after being taken out. The composite finishing agent is prepared with the following methods that 2 parts to 3 parts of carboxymethyl cellulose, 4 parts to 5 parts of vinyl trimethoxy silane, 8 parts to 9 parts of tetrakis hydroxymethyl phosphonium chloride, 1 part to 2 parts of phosphorous ester and three parts to four parts of triethoxy ethyl silane are mixed, then, 7 parts to 8 parts of cyclic phosphonate ester and 6 parts to 7 parts of molybdenum trioxide are synchronously and slowly added, material feeding is completed within eight minutes to ten minutes, continuous mixing lasts for ten minutes to fifteen minutes, and the composite flame-retardant agent is prepared. The flame-retardant knitted fabric has excellent flame-retardant performance.

The invention discloses a comprehensive filtering wave compensation controller which comprises a shell, wherein the shell is coated with a protecting layer; the protecting layer is prepared according to the following steps: 1) feeding the following components in parts by weight into 12.6 parts of deionized water: 2.6 parts of modified styrene-acrylic emulsion, 1.8 parts of dimethyl cresol, 2.1 parts of triphenyl(phenylmethyl)-phosphonium chloride and 0.9 part of benzotriazole, and uniformly stirring, thereby obtaining a primer protecting coating; 2) feeding the following components in parts by weight into 11.3 parts of deionized water: 1.6 parts of amino resin, 2.4 parts of polydimethylsiloxane, 0.7 part of titanium dioxide and 1.9 parts of isopropanolamine, and uniformly stirring, thereby obtaining a surface protecting coating; 3) firstly, spraying the primer protecting coating on the surface of the shell, and curing and drying; and 4) further spraying the surface protecting coating, and curing and drying. As the shell of the comprehensive filtering wave compensation controller is coated with the protecting layer, the service life of the comprehensive filtering wave compensation controller is prolonged.

The invention discloses a preparation method of a water-soluble N-P-codoping carbon dot. The preparation method comprises the following steps of (1) dissolving sulfanilic acid into ultrapure water to prepare a precursor solution, and uniformly mixing tetrahydroxymethyl phosphonium chloride and the precursor solution according to the volume ratio of 1:(10 to 20) to obtain a mixed solution; (2) carrying out hydrothermal reaction on the mixed solution prepared in the step (1), and thus obtaining the water-soluble N-P-codoping carbon dot. According to the preparation method of the water-soluble N-P-codoping carbon dot provided by the invention, the water-soluble N-P-codoping carbon dot is prepared by adopting a one-step hydrothermal method, the carbon source is rich and cheap, the preparation process is simple and easy, the whole preparation process is free of pollution and toxicity, and is green and environmentally friendly, and preparation in large scale can be realized.

The present invention relates to a treatment medicament for oilfield reinjection water, and particularly to a fungicide for compound oilfield reinjection water, and a preparation method therefor. A technical scheme of the invention is: a fungicide for compound oilfield reinjection water is prepared by quaternary phosphonium salt, dibromo nitrilo propionamide, 50% glutaraldehyde solution, and water, wherein the mass ratio of the quaternary phosphonium salt, the dibromo nitrilo propionamide, the 50% glutaraldehyde solution, and the water is 20-30: 10-20: 10-20: 30-60. The quaternary phosphonium salt is one of tetrakis hydroxymethyl phosphonium chloride and tetrakis hydroxymethyl phosphonium sulfate. The present invention provides a highly efficient fungicide for compound oilfield reinjection water.