1099 results about "Acide succinique" patented technology

Disclosed are lubricant compositions comprising a dispersed hydrated alkali metal borate, a polyalkylene succinic dispersant selected from a polyalkylene succinic anhydride, a mixture of polyalkylene succinic anhydrides or derivatives thereof; and a metal salt of a polyisobutenyl sulfonate. Also disclosed are methods for improving the water tolerance of a lubricant composition and methods for preparing such lubricants comprising a dispersed hydrated alkali metal borate and a dispersant mixture.</PTEXT>

Demulsifiers containing an anionic surfactant selected from alkylsulfosuccinates, alkylphosphonic acids, and their salts; a nonionic surfactant selected from ethylene oxide/propylene oxide copolymers, ethoxylated fatty acids of polyethylene glycol, terpene alkoxylates, and modified alkanolamides; and solvent bases comprising blends of dibasic esters. Methods for breaking emulsions using such demulsifiers and solvent bases are also disclosed.

The present invention relates to a phosphorus-free composite antiincrustation corrosion inhibitor. It includes polyaspartic acid and/or polyepoxysuccinic acid and at least one kind of scale inhibition and dispersion agent, in which the scale inbibition and dispersion agent is polymer containing carboxylic acid group, or it includes polyaspartic acid and/or polyepoxysuccinic acid, zinc salt, molybdate or tungstate and polymer containing carboxylic acid group. Said invention is applicable to treatment of circulating cooling water.

The present invention belongs to the field of circular cooling water treating technology, and is especially one kind of low phosphate green composite corrosion and scale inhibitor for treating circular cooling water and its usage. The green composite corrosion and scale inhibitor is compounded with polyepoxy sodium succinate, polysodium asparate, polymaleic acid, organic phosphonic acid, imidazoline type corrosion inhibitor, sodium gluconate, zinc salt and other antiscaling dispersant and corrosion inhibitor. When it is used, the green composite corrosion and scale inhibitor is added directly into circular cooling water. The green composite corrosion and scale inhibitor features its low phosphate content, biodegradability and environment friendship.

Methods employing detergent compositions comprising phosphinosuccinic acid oligomers (PSO) in combination with a sanitizing rinse aid are disclosed. The methods beneficially clean, sanitize and rinse a surface in an efficient two-step process. The detergent compositions employ phosphinosuccinic acid adducts, namely mono-, bis- and oligomeric phosphinosuccinic acid (PSO) derivatives, in combination with an alkalinity source and optionally polymers and/or surfactants. The sanitizing and rinsing compositions employ peroxycarboxylic acid compositions in combination with a nonionic defoaming and wetting surfactant.

This invention relates to an improved method of inhibiting corrosion and calcium sulfate and calcium carbonate scaling in thermal and membrane desalination processes. The method includes adding a composition having an acrylic acid 2-acrylamido-2-methylpropyl sulfonic acid copolymer, combined with a synergistically effective amount of oligomeric phosphinosuccinic acid to seawater or recirculation brine in a desalting process to produce water for drinking and industrial applications. The method also includes adding a composition including mono, bis, and oligomeric phosphinosuccinic acid adducts to the desalting process.

The invention discloses an antibacterial soap-based shower gel and a preparation method thereof. The shower gel comprises the following ingredients: thymol, salicylic acid, plants extracts, ethyl alcohol, propylene glycol, erythritol, lauric acid, myristic acid, palmitic acid, potassium hydroxide, glycol distearate, dihexyl sodium sulfosuccinate, cocamidopropyl betaine, sodium cocoyl glycinate, polyquaternium-7, polyglyceryl fatty acid ester composition, ethylene diamine tetraacetic acid tetrasodium, sodium chloride, citric acid, essence, a preservative and water. The antibacterial soap-based shower gel is soft and friendly to skin, can effectively resist bacteria and moisturize skin and is particularly applicable to people with thicker cuticle, high grease secretion, skin pruritus and tinea corporis.

Diet cola beverage and other beverage products and methods for making the same are disclosed. The diet cola beverages comprise water, at least one natural, potent, non-nutritive sweetener, at least one natural, low potency, low calorie sweetener, an acidulant comprising at least one of lactic, citric, tartaric, malic, fumaric, cinnamic, maleic, adipic, glutaric, and succinic acids, a caramel colorant, and cola flavor.

The invention relates to an equipment cleaning agent which is used in the field of petroleum and chemical industry, in particular to a ferrous sulfide dirt neutral complexing cleaning agent which is used for washing a synthesized ammonia low-temperature methanol washing unit system in the petroleum chemical industry and the coal chemical industry. The ferrous sulfide dirt neutral complexing cleaning agent is prepared from the following raw materials in parts by weight: 5 to 8 parts of sodium gluconate, 7 to 11 parts of sodium salicylate, 20 to 26 parts of gadoliniam diethylene triamine pentaacetic acid, 20 to 26 parts of sodium ethylene diamine tetracetate, 40 to 46 parts of propenoic acid-itaconic acid copolymer, 25 to 32 parts of disodium polyepoxysuccinicate, 12 to 15 parts of sodium hydroxyphenylace, 3 to 7 parts of triethanolamine, 3 to 7 parts of hydrogen peroxide, 0.1 to 0.3 part of lauryl sodium sulfate, 0.1 to 0.3 part of polydimethyl siloxane fluid and 40 to 45 parts of water. The ferrous sulfide dirt neutral complexing cleaning agent is free from generating hydrogen sulfide when cleaning the ferrous sulfide dirt and corroding the equipment and has strong capacity for complexing the iron ions, the removal speed is fast, the decontamination rate is more than 98 percent, the neutralization and passivation are unnecessary to carry out after the chemical washing, and the equipment can be put into operation immediately.

The present invention relates to a polyester having an excellent hydrolysis resistance even when used in a process for producing a toner for electrophotography which includes a step of forming a raw material into particles in an aqueous medium, and a toner for electrophotography which contains the polyester and is excellent in storage stability and fixing property. There are provided a polyester for a toner for electrophotography which is used in a process for producing a toner including a step of forming a raw material component into particles in an aqueous medium or a solution, and produced by polycondensing an alcohol component with a carboxylic acid component containing at least one compound selected from the group consisting of an alkyl succinic acid and an alkenyl succinic acid, as well as a toner for electrophotography which contains the polyester.

The present invention relates to eukaryotic cells which have the ability to convert L-arabinose into D-xylulose 5-phosphate. The cells have acquired this ability by transformation with nucleotide sequences coding for an arabinose isomerase, a ribulokinase, and a ribulose-5-P-4-epimerase from a bacterium that belongs to a Clavibacter, Arthrobacter or Gramella genus. The cell preferably is a yeast or a filamentous fungus, more preferably a yeast is capable of anaerobic alcoholic fermentation. The may further comprise one or more genetic modifications that increase the flux of the pentose phosphate pathway, reduce unspecific aldose reductase activity, confer to the cell the ability to directly isomerise xylose into xylulose, increase the specific xylulose kinase activity, increase transport of at least one of xylose and arabinose into the host cell, decrease sensitivity to catabolite repression, increase tolerance to ethanol, osmolarity or organic acids; and/or reduce production of by-products. The cell preferably is a cell that has the ability to produce a fermentation product such as ethanol, lactic acid, 3-hydroxy-propionic acid, acrylic acid, acetic acid, succinic acid, citric acid, amino acids, 1,3-propane-diol, ethylene, glycerol, -lactam antibiotics and cephalosporins. The invention further relates to processes for producing these fermentation products wherein a cell of the invention is used to ferment arabinose into the fermentation products.

The invention relates to a terylene short fiber oil agent. On the basis of the total weight of the terylene short fiber oil agent, the terylene short fiber oil agent is prepared by mixing the following components in percentage by weight: 28-32 percent of paraffin, 8-12 percent of dodecyl phosphoester sylvite, 22-28 percent of succinic acid penetrating agent T, 3-6 percent of alkylol amine, 3-6 percent of oleyl alcohol, 3-6 percent of bromo-geramine, 12-18 percent of peregal (S-185), 43-6 percent of emulsifying agent OP and 3-6 percent of emulsifying agent MOA4-7. The terylene short fiber oil agent has superior emulsion stability, antistatic performance, smoothness and high oil-film strength, and is suitable for producing terylene short fibers or cotton terylene short fibers which have high total tow denier and can be applied to high-speed spinning.

The invention relates to an oil agent for chopped polyester fiber. The oil agent is prepared by mixing the following components in percentage by weight: 25-35% of isooctyl stearate, 5-15% of sodium diethyl ethanol sulfonate succinate, 3-5% of sorbitan oleate, 15-25% of dodecyl polyoxyethylene ether (5), 8-12% of dodecyl polyoxyethylene ether (10), 8-12% of potassium POE (polyoxyethylene) alkyl phosphate, 3-5% of softener A, 3-5% of fatty alcohol ethylene oxide and 1-8% of regulator. The oil agent provided by the invention has the advantages of excellent emulsion stability, antistatic property and smoothness as well as high oil film strength, and is suitable for production of chopped polyester fiber or chopped cotton polyester fiber which has high total tow denier number and can be spun at high speed. In addition, because the oil agent has low production cost and very large use amount, the economic benefit is obvious.

The invention relates to the field of circulating water treatment and discloses compound corrosion and scale inhibitor and a preparation method and application thereof. The method comprises the steps of mixing water solution containing polyepoxysuccinic acid with inorganic acid solution, evenly stirring, standing, taking liquid supernatant after precipitation forms and complexing the liquid supernatant with one or more of hydrolytic polymaleic anhydride, organic phosphonic acid corrosion and scale inhibitor, sulfonic acid copolymer and zinc-contained compound. The preparation method disclosed by the invention can solve the problem that prepared compound corrosion and scale inhibitor generates turbidness and precipitation and can guarantee that the compound corrosion and scale inhibitor has an excellent corrosion and scale inhibition effect.

The invention discloses a preparation method of isooctanol polyoxypropylene ether sodium sulfosuccinate diester. The method comprises the following steps of: adding epoxy propane into isooctanol serving as an initiator under the action of a modified DMC (Di Methyl Carbonate) catalyst for undergoing a condensation reaction to obtain isooctanol polyoxypropylene ether; undergoing an esterification reaction on the isooctanol polyoxypropylene ether and maleic anhydride under the catalytic action of a solid super acid S2O8<2->/ZrO2 to obtain isooctanol polyoxypropylene ether sulfosuccinate diester; and undergoing a sulfonation reaction on the isooctanol polyoxypropylene ether sulfosuccinate diester and a sodium metabisulfite solution under the action of a phase transfer catalyst, and adding a NaOH aqueous solution till the pH of a reactant is 4-7 to obtain the isooctanol polyoxypropylene ether sodium sulfosuccinate diester. The preparation method has the advantages of clean, environmentally-friendly and simple production process, higher permeability and remarkable reduction in foams produced in the using process.

The invention discloses a circulated cooling water compounded scale inhibitor and a preparation method of the circulated cooling water compounded scale inhibitor. The circulated cooling water compounded scale inhibitor is prepared by weighing polyaspartic acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyepoxysuccinic acid, amino trimethylene phosphonic acid, deionized water, sodium hexametaphosphate, a dispersing agent, polyhydric alcohol phosphate ester, organic polybasic phosphonic acid, acrylic acid-acrylic acid phosphonic hydroxypropyl acrylate and organic solvent according to a ratio in parts by weight. According to the circulated cooling water compounded scale inhibitor and the preparation method, disclosed by the invention, the content of phosphor in a water treatment agent is reduced, the generation rate of calcium phosphate scales is reduced, and the corrosion inhibition speed ranges from 0.001mm/a to 0.01mm/a; the scale inhibition rate is up to 98 to 100 percent; the expiration date is long, the circulated cooling water compounded scale inhibitor can be stored for one month under 60 to 70 DEG C, and the scale inhibition effect is up to 99 to 100 percent.

The invention provides a phosphate-free high-biodegradability scale and corrosion inhibitor applicable to water reclamation, which mainly comprises an agent A and an agent B, wherein the agent A is prepared from the following raw materials in parts by weight: 3-6 parts of polyepoxysuccinic acid, 1.3-4.5 parts of sodium molybdate, 20-35 parts of phosphate-free antiscale dispersant, 0.5-1.5 parts of benzotriazole and 52-75.2 parts of deionized water; and the agent B is prepared from the following raw materials in parts by weight: 5-12 parts of sodium gluconate, 15-30 parts of zinc sulfate, 0.5-3 parts of concentrated sulfuric acid and 55-80 parts of deionized water. The preparation method comprises the following steps: respectively preparing the agent A and agent B, and uniformly stirring to obtain the scale and corrosion inhibitor. The experiment indicates that the composite scale and corrosion inhibitor has favorable scale inhibition property and corrosion inhibition effect for reclaimed circulating cooling water.

The present invention is intended to provide a process capable of efficiently producing highly purified succinic acid from an alkali metal succinate by a simple separation and purification process.

The process for producing succinic acid in the present invention comprises (1) the step to add sulfuric acid into a solution containing an alkali metal succinate, (2) the step to precipitate and remove the crystal of an alkali metal sulfate from said solution, and (3) the step to precipitate and recover the crystal of succinic acid. The removal of the crystal of an alkali metal sulfate in the step (2) is performed by a solid-liquid separation in a state that the crystal of alkali metal sulfate is precipitated by concentrating and heating the solution that is obtained by adding sulfuric acid in the step (1) and succinic acid is dissolved in the solution.