102 results about "Methyl glycol" patented technology

The invention provides a method for preparing 1, 2- methyl glycol through glycerin hydrogenation. The glycerin, diluted glycerin or side product coarse glycerin of biodiesel mixes with hydrogen gas or hydrogen gas- containing gas, and reacts under catalyst action to produce 1, 2- methyl glycol. The conversion rate is high.

The invention relates to a water-soluble human body lubricating agent comprising 10-20 wt% of glycerin, 0-5 wt% of methyl glycol, 1-1.2 wt% of aloe powder, 0.8-1.7 wt% of adhesion promoter containing hydroxyethyl cellulose, 0.3-1.5 wt% of antiseptic, and balancing water.

The invention provides an eye plaster which comprises chrysanthemum flower 1-6g, root of herbaceous peony 1-6g, tea 1-5g, pearl powder 0. 5-4g, dahurian angelica root 0. 5-3g, yellow corktree bark 0. 5-4g, Chinese date 0. 5-5g, safflower 0. 5-4g, Ligusticum wallichii 1-6g, abalone shell 0. 5-4g, licorice root 0. 5-4g, borax 0. 5-3g, borneol 0. 5-3g, menthol 0. 5-3g, methyl glycol 2-8g and glycerol 2-8g.

Disclosed is an environment-friendly latex paint for external wall which comprises water, thinning agent methyl glycol, dispersing agent P-998, multifunctional adjuvant AMP-95, wetting agent PE-100, water solution of thickening agent HEC, defoaming agent 220, titanium dioxide R215, porcelain clay, ultra-fine grammite, ultra-fine aluminum silicate, talcum powder, antiseptic 981, polyurethane thickening agent SN636, thickening agent 2020, levelling agent DSX 2000, defoaming agent 202 and thixotropic agent AT.

An impurity removing and desalting method for 1, 3-propanediol zymotic fluid relates to a 1, 3-propanediol zymotic fluid, which provides the An impurity removing and desalting method for 1, 3-propanediol zymotic fluid. Micro filtering impurity removing is that the 1, 3-propanediol zymotic fluid with germ is preprocessed by a filtering bag and enters a ceramics film device micro for micro filtering impurity removing. The germ body and protein macromolecular matter are removed from zymotic fluid to get the zymotic filter fluid of the 1, 3-propanediol. The salt removing by electrodialysis is that zymotic filter fluid containing the 1, 3-propanediol is put into an electrodialysis device to remove salt and completes when filtrate conductance is reduced to 2000 us. Therefore, the electrodialysis operation is stopped. The filter fluid enters the following technics for condensation and purification. The invention has a bigger film flux, a good treating effect and light ion exchanging film pollution. The salt removing by electrodialysis has low energy consumption and good treating effect. The conductance of material liquid can be completely reduced to 2000 us to satisfy techincs demand of following concentration and distillation. The loss rate of the 1, 3-propanediol is low with little environment pollution.

The invention relates to a dense oil sewage treatment reverse-phase demulsifying agent, wherein the invention is characterized in that: it uses methyl glycol as initial agent, via catalyst, to process oxypropylation reaction, and process aggregation with epoxyethane, to generate methyl glycol polyether; uses nonyl phenol as initial agent, via catalyst, to react with epoxyethane to generate nonyl phenol ethoxy compound, then to be aggregated with epoxypropane, to generate alkyl phenol polyvinyl ether; then mixing two products, to process esterification with acroleic acid under acid condition, via initiator to process free group aggregation, to generate esterified product, then uses maleic acid to seal end, to generate acroleic acid modified macromolecule demulsifying agent. The invention has simple process, warm reaction, and high efficiency.

The invention relates to an industrial synthesis technique of DL-naproxen, which uses 2-propinonyl-6-methoxynaphthalene is reacted with neopentyl glycol, ethylene alcohol, 1, 3-methyl glycol or 1, 2-methyl glycol via ketol reaction to give ketone I, then processes a-bromo-reaction which is subjected to rearrangement to open ring, at last processes alkali hydrolytic reaction and acidification reaction to obtain DL-naproxen. The industrial synthesis technique of DL-naproxen has simple operation, high yield and low cost, which is fit for commercial production.

The invention provides an improved method for synthesizing Ioversol, belonging to technology preparing non-ionic X contrast agent. The invention employs 5- hydroxyethyl amido- N, N' - (2,3-dihydroxy propyl)- 2, 4, 6- triiodide-1, 3- benezene diformamide and 2- chlorethanol to proceed nitrogen alkylation reaction in mixing solution of caustic soda and acetonitrile, neutralizing, desalting and desalting reacting solution, re-crystallizing with methyl glycol single dimethyl ether, and getting Ioversol. The invention is characterized by soft reacting condition, short reaction time, and stable quality, low cost and suitable for industrialized production.

This invention relates to a method for separating and purifying 1,3-dihydroxypropane from microbial fermentation liquor, comprising: after the sterilization and dehydration of fermentation liquor, add in 1-pentanol or isoamyl alcohol, n-butanol and n-hexanol, then remove the sediment in the fermentation liquor by filtration or settlement followed by washing; add in appropriate amount of glycerol or 1,4-butylene glycol to the supernatant to recover 1-pentanol or isoamyl alcohol, n-butanol and n-hexanol, by decompression or normal pressure distillation, so as to produce high-purity 1,3-dihydroxypropane, with more than 95% recovering rate. This invention is characterized of simple separation process, mature technique, low separation cost, and little additional introduced agent with easy recovery. Besides, the crystallization sediment in the fermentation liquor can be efficiently separated, which overcomes the problems of foaming, agglomerating and pipe clogging during distillation, so as to realize continuous operation.

The invention provides a technical proposal with hydrophobic lotus-leaf water-ball effect, the product for which is resistant to powdering, to discoloring, dirt and aging, highly resistant to washing and brushing, and resistant to fine cracks; after rubbing, the sample is of excellent hydrophobic property, and the color maintains as new after repeated scrubbing or being placed under the blazing sun for some time. The technical proposal comprises by weight: silicone acrylic emulsion 25-35%, pure acrylic emulsion 15-20%, colorant 20-30%, filler 5-10%, wetting dispersing agent 0.5-0.7%, defoaming agent 0.15-0.2%, thickener A 0.7 swung dash 0.8%, thickener B 0.1 swung dash 0.2%, anti-corrosion disinfecting agent 0.15-0.2%, methyl glycol 2.0 swung dash 2.5%, pH adjusting agent 0.1 swung dash 0.2%, moisture repellent 0.2-0.4%, filming assistant 0.8-1.5%, and the remainder is tap water.

The invention discloses a preparing method of modified poly-p-phthalic acid methyl glycol ester, which comprises the following steps: proceeding esterification reaction with terephthalic acid and 1, 3-methyl glycol under existence of accelerant; preparing BHTT flux; proceeding ester exchanging reaction with m-phthalic acid di-methyl ester-5-mahogany and 1, 3-methyl glycol; getting methyl glycol solution of m-phthalic acid propylene glycol ester-5-mahogany; mixing adipic acid, ethylene alcohol, 1, 3-methyl glycol or 1, 4-butylene glycol; proceeding esterification reaction; getting adipic acid glycol ester solution; putting the m-phthalic acid methyl glycol ester-5-mahogany solution into BHTT flux; stirring; inputting the adipic acid glycol ester solution; proceeding polycondensation reaction; getting the product. This product can dye positive ion under normal temperature and normal pressure, which possesses great crystallization property and spinning property.

The invention provides a preparation method for (I) 2- amido -2-[2-(4- alkyl phenyl)ethyl]-1,3- propanediol, which comprises: using alkyl benzene (II) as initial material, with Lewis acid existing, to take Friedel-Crafts acylating reaction with 3- halogenated propionyl chloride and generate beta- halogenated alkylpropiophenone (IV); reducing IV by hydride to obtain 3- nitro -1-(4- alkyl phenyl) propanol (V); preparing 2- nitro -2- methylol -4-(4- alkyl phenyl)-1,4butanediol (VI) by hydroxymethylation; reducing nitro and removing benzalcoholhydroxy to VI and obtaining the objective product.

The invention discloses a flame-proof polyytrimethylene terephthalate alcohol and preparing method, which is characterized by the following: incorporating phosphoric system combustion inhibitor element; counting with phosphorus content; making up 0. 3%-1% polyytrimethylene terephthalate alcohol; preparing methyl glycol solution of phosphate ester; adding into terephthalic acid; proceeding esterification and polycondensation reaction with 1, 3 methyl glycol; getting the product. This product possesses simple course and good property, which fibre intensity is high.

The invention relates to a paradimethy-laminobenzaldehyde thiosemicarbazone as tyrosinase restrainer, in particular to the paradimethy-laminobenzaldehyde thiosemicarbazone applied in beauty cosmetics. The invention uses paradimethy-laminobenzaldehyde thiosemicarbazone with high-effect restrain function on the activity of tyrosinase as whitening agent to prepare beauty cosmetics, and provides a relative beauty cosmetics and a preparation. The invention uses paradimethy-laminobenzaldehyde thiosemicarbazone as whitening agent of de-crease beauty cosmetics solution which contains sea fish collagen peptide, paradimethy-laminobenzaldehyde thiosemicarbazone, alcohol, glycerin, methyl glycol, plant essence, conservative and water, that dissolves sea fish collagen peptide into water to obtain solution A, dissolves conservative and paradimethy-laminobenzaldehyde thiosemicarbazone into alcohol to obtain solution B, adds glycerin and methyl glycol into solution B to obtain solution C, mixes the solutions A and C, and adds water to form solution D, and adds plant essence into the solution D.

Disclosed is a fresh-keeping agent for wet noodles, which is prepared from the constituents of ethanol (ml), methyl glycol (ml) and sodium chloride by the ratio of 1 : 0.7-1.1 : 1.2-1.5. The amount of the fresh-keeping agent is 7-8% of weight of the flour.

The present invention provides 1, 3-propylene glycol preparing process, which includes the contact of dialkyl malonate with hydrogenating catalyst CuZnaAlbOc, where, a is 0.04-3, b is 0.04-3, and c is the atom number for reaching the electric neutrality of the compound; and reaction at temperature of 100-220 deg.c and pressure of 0.1-10.0 MPa, and in the space velocity of ester of 0.1-1 / hr and hydrogen / ester molar ratio of 100-700 to 1. The process has high 1, 3-propylene glycol selectivity, high reactor utilizing efficiency, and low cost.

The invention relates to a cigarette flavoring solvent capable of improving the flavor addition efficiency and the application thereof, and the invention is characterized in that: the solvent comprises by volume percentage: glycerin 5-50 %, methyl glycol 5-50 %, glycerin triacetate 10-80 % and alcohol 10-80 %, the solvent is used as the cigarette flavoring solvent and is prepared into the flavoring solution which is charged into the tobacco of the cigarette to improve the cigarette flavoring addition effect. The invention has the advantages that the solvent can effectively improve the transferring rate of the additive flavor into the cigarette mainstream smoke and particle phase, thereby improving the flavor addition efficiency with no abnormal smell and no changing of the cigarette flavor style; through even mixing of the solvent with flavoring agents, a flavor solution is prepared with good effect in the flavor addition of the cigarette, meanwhile, the invention has simple process, low cost and can be used as a common solvent for the flavor agents addition of cigarettes.

The invention relates to a hair dye comprising the following constituents (by weight parts): octadecanol 8.5-9.5%, white oil 26# 3.8-4.2%, Peregal O 3.8-4.2%, polyquaternium-22 1.42-1.58%, oleinic acid 4.7-5.3%, isopropanol 4.7-5.3%, disodium ethylenediamine tetraacetate 0.14-0.16%, anhydrous sodium sulfite 0.28-0.32%, sodium ascorbate 0.47-0.53%, methyl glycol 4.7-5.3%, balsamine and dyer's wade mixture 4.25%, alkalinizing agent 11.40-12.60%, and balancing deionized water.

The invention discloses a making method of 1, 3-propylene glycol through hydrogenating 3-hydroxy propanal, which comprises the following steps: adopting load-typed non-crystal alloy as catalyst; using two-segment paralleling fixing bid to hydrogenate continuously under 20-60 deg.c for one-segment and 50-90 deg.c for two-segment; setting the condensing density of 3-hydroxy propanal to 2.0-40.0% with air speed at 0.1-5.0h-1; making the hydrogen pressure at 0.5-10.0Mpa and air speed at 100-2000h-1.

The invention discloses a preparing method of polyytrimethylene terephthalate alcohol, which is characterized by the following: proceeding esterification reaction for terephthalic acid and 1, 3-methyl glycol; getting the product; proceeding polycondensation reaction; adopting structural formula (B) titanium compounds as accelerant in the polycondensation reaction; adopting phosphoric compound of structural formula (A) as stabilizer. This invention adds anti-oxidant and cobalt compounds to additional color, which polyester chip possesses better color cast and good heat endurance.

The invention provides a toothpaste composition which is prepared from the following constituents (by weight portions): sorbitol 55-60%, methyl glycol 2-5%, sodium carboxymethylcellulose 0.5%, gluside 0.3%, sodium dodecylsulfate 2%, gourmet powder 1-1. 5%, strontium chloride 0.2-0.5%, medicinal guan-yin tea 0.5-1. 5%, pseudo-ginseng extract 0.5-1. 5%, silicon abrasive 25%, SOD complex enzyme 0.02%, biological lysozyme 0.01%, Ornidazole 0.5-1. 5% and balancing water.

The invention provides a lymphatic static fat-expelling weight-reducing externally applied cream which is prepared from the following raw materials (by weight ratio), caffeine 1-4 parts, ginkgo leaf extract 3-8 parts, nicotinamide 1-3 parts, allantoin 1-3 parts, methyl glycol 5-12 parts.

The invention discloses a liquid composition of immune inhibiting agent ciromos, which consists of soluble solution system with ciromos and pre-emulsifying condensed liquid system, wherein the ciromos can dissolve in the methyl glycol, PEG, surface activator and plant oil.

Disclosed is a liquid preparation for treating anaphylactic rhinitis, wherein the constituents include (by weight percent) purple perilla oil 1.5-4.2%, methyl glycol 5-10%, Tween80 0.25-1.5%, Cremophor RH 40 5-15%, borneol 1-2%, lauryl alcohol 1-2%, isopropyl inosine 0.05-0.2%, uridylic acid 0.10-0.5%, sodium metabisulfite 0.1%, Ethylparabenum 0.2% and balancing distilled water to 100%.

The invention discloses a preparing method of restructuring strain in biological technical domain, which comprises the following steps: adopting PCR technique; cloning dhaT gene from pneumonic klebsiella DSM 2026; constructing bacillus coli expressing carrier pET-dhaT with dhaT gene; transferring into bacillus coli DH5 alpha; proceeding plasmid reproduction; extracting recombinant plasmid; transferring to bacillus coli BL21(DE3); getting recombination gene engineering strain E. coli-pET-dhaT to express 1, 3-propanediol oxidoreductase (PDOR). This strain can get stable PDOR under the condition of non-antibiotic selective pressure.

The invention discloses a preparing method of muskrat fragrant active component with external secret scent, which comprises the following steps: supplying naphthene ketones with 7-21 carbon, fatty acid and ester, naphthenic alcohols with 3-33 carbon, aldehydes and alkenes; stripping fragrant gland bag of muskrat; shearing cortex part; washing with PBS; adding into original generation culture liquid; producing suspended liquid; feeding on the floor of culture bottle; adding into culture liquid to culture; choosing cell of fine and close step; adding into parenzyme; digesting; blowing cell single-layer slowly; sucking-off; transferring into another culture bottle; adding into culture liquid; culturing at constant temperature; extracting out of muskrat aromatic oil state matter; adding into parenzyme; reacting; adding into 1, 3 methyl glycol or dimethy ketone; stewing; separating; adding into kalii permangana; stewing with activated char; removing the kalii permangana; centrifuging; extracting with 1, 3 methyl glycol; removing solvent. This preparing craft is simple and stable, which is a new animal spice and medicinal material.

The invention relates to a comprehensive utilization method of vanillin production byproduct, which comprises effectively separating 3-methoxy-4-hydroxy benzene glycollic acid dimmer from product to replace part or total phenol to be condensed with formaldehyde to prepare modified phenol resin, replacing part or total bisphenol A to be condensed with epichlorohydrin to prepare modified epoxy resin, replacing part or total benzene dicarboxylic acid to be condensed with maleic acid and methyl glycol to prepare unsaturated alkide resin. The modified resin has wide application in paint, adhesive and plastic to reduce vanillin production cost and eliminate waste liquid pollution in production.

The invention discloses a frame type percutaneous absorption externally-used preparation and process for preparing it, which comprises four portions of a storage layer, an adhesive layer, a back lining layer and a protection layer, wherein the storage layer comprises the following constituents (by weight ratio): Ligusticum wallichii alkaloid extract 7.5-12 parts, frame material 50-60 parts, methyl glycol 7-15 parts, azone 0.5-3 parts, and thickening agent 0-5 parts, other ingredients 5-35 parts. The preparation can be used for treating rheumatic and rheumatoid arthritis.

The invention discloses a face-washing mask employing mineral salts as the principal raw materials, wherein the constituents include mineral salts 30-70%, polyvinyl aliphatic alcohol ether1-3%, carboxymethyl cellulose 2-8%, methyl glycol 8-20%, ethanol 3-10%, perfume compound 0.1-1% and balancing deionized water.

The invention discloses a making method of polyterephthalic acid propanediol ester, which is reacted by terephthalic acid and 1, 3-methyl glycol, wherein the catalyst is salt generated by tin (II) compound and organic diacid with general formula I or II or corresponding acid anhydride; the tin (II) compound is one of stannous oxide, stannous chloride, stannous bromide, stannous iodide, stannous sulfate, stannous carbonate, stannous hydroxide, stannous caprylate and stannous acetate; n in the formula I is 0-16; R1 and R2 is H, halogen (Cl, Br, I) or alkyl with carbon atom number at 1-6; two carboxyls in the formula II display at adjacent position, interposition or contraposition with other replaced base L on the other positions on the phenyl ring; L is Cl, Br, I, nitro or alkyl with carbon atom number at 1-6.