58 results about "Freezing-point depression" patented technology

A reduced carbohydrate ice cream or other frozen dessert product that contains a low-digestible sweetener system and a fermentable fiber material. The a low-digestible sweetener system consists of one or more low-digestible sweeteners having a molecular weight of from about 90 to about 190; and is typically a low molecular weight saccharide or a polyol. Typical low-digestible sweeteners include mannitol, maltitol, sorbitol, lactitol, erythritol, xylitol, isomalt, glycerin, talitol, mannose, tagatose, fructose, arabinose, fucose, lycose, ribose, sorbose, talose, and xylose, and mixtures thereof. The low-digestible sweetener replaces the digestible sugars to provide the appropriate freezing point depression of the product. The level of fermentable fiber is sufficient to mitigate a Taxation effect that can be caused by ingestion of the amount of the low-digestive sweetener. The fermentable fiber can be an inulin, a maltodextrin resistant to human digestion, an oligofructose, a fructooligosaccharide, a high water binding fermentable fiber, and a mixture thereof.

Method for dewatering, pressure testing, hydrotreating, suppressing methane hydrate formation and suppressing solution freezing point in pipeline operations have been disclosed, where the solution used in the operations includes an effective amount of a metal formate salt. The metal formate salt solutions have a low viscosity, have a high density, have a low metals corrosivity, are non-volatile, have a low solubility in hydrocarbons, are readily biodegradable, have a low toxicity, are non-hazardous, have a low environmental impact, have a freezing point depression property forming water/formate eutectic point mixtures, and have a water-structuring and water activity modification property.

Methods and apparatus for desolvating flowing liquid streams while retaining temporal resolution of dissolved substrates are disclosed. A novel small-scale self-regulating spray dryer preserves temporal resolution while desolvating a liquid chromatography eluent stream and depositing the solute onto an optical surface for infrared spectrographic analysis. The liquid eluent is pumped through a heated nebulizer to create a high-speed jet of solute containing liquid and solvent vapor. This jet is directed circumferentially inside a hot cylindrical cavity. Centrifugal force causes the larger liquid droplets to travel along the outer diameter of the cavity. The cavity surface is heated to cause the droplets to film boil. Film boiling reduces droplet contact with the cavity surface thereby retaining the solute in the droplets. The solute temperature is limited by controlling the pressure into which the solvent evaporates from the droplets. When the droplets are sufficiently small, Stokes drag from the exiting solvent vapor carries the droplets out through the center of the cylindrical cavity. After exiting, the superheated solvent vapor further dries the droplets. Solvent vapor is removed by condensation onto a cooled surface. A freezing point reducing agent may be added to improve removal of solvent condensate. Stokes drag from a non-condensable gas maintains the dried droplets in suspension. This suspension travels through an orifice that focuses the impaction of the dried droplets onto the optical surface for infrared analysis. The deposition surface is in an evacuated chamber and is temperature controlled to freeze liquid solutes yet allowing sublimation of residual solvent.

The invention discloses anti-reflash environmental protection water-based extinguishing agent. The water-based extinguishing agent is composed of the components, by weight, 5-20 parts of ammonium carbonate; 10-45 parts of ammonium polyphosphate; 10-30 parts of sodium silicate; 1-10 parts of foaming agent; 0.5-5 parts of polyethylene glycol; 1-5 parts of thickening agent; 4-10 parts of compound antifreeze and 55-80 parts of water. The foaming agent is selected from one of fatty alcohol polyoxyethylene ether carboxylate, an imidazoline amphoteric surfactant and a biosurfactant. The compound antifreeze is a compound compounded by inorganic salt and polyhydric alcohols, wherein the molar ratio of inorganic salt to polyhydric alcohols is 1:3-1:9. According to the anti-reflash environmental protection Water-based extinguishing agent, all raw materials are made of environmental protection materials; the water-based extinguishing agent is free in fluorine compound and are non-poisonous, odorless and non-polluting; a fire retardant is added so that fire spreading can be effectively prevented, and fire extinguishing effectiveness is high; the green surfactant is adopted as the foaming agent;foaminess is good; the contact between comburent and air is effectively isolated; the fire extinguishing speed is improved; and the compound antifreeze of inorganic salt and polyhydric alcohols is adopted, so that the freezing point of the extinguishing agent is reduced to be -30 DEG C.

Methods and compositions for the prevention of the formation, breakdown, and/or removal of gelled layers in an oil and/or gas well are provided. In some embodiments, the compositions and methods comprise a concentrate, as described in more detail herein, where the concentrate comprises two or more surfactants. In certain embodiments, the compositions and methods comprise an emulsion or a microemulsion. The emulsion or microemulsion may include a surfactant, optionally a solvent, and optionally a freezing point depression agent or other components.

An aqueous fire sprinkler fluid containing low carbon number carboxylate salts for freezing point depression is described. The salts may be used in conjunction with glycols. The salts decrease the combustibility of the glycol containing fluids and give lower viscosity than higher glycol fluids, both benefitting fire sprinkler systems. These salt solutions are friendly to metal and CPVC pipes and are thus useful for fire sprinkler systems by not causing environmental stress cracking of the CPVC components and not being corrosive to the metal parts.

The invention relates to ultralow temperature discharge electrolyte of a novel lithium ion battery. The electrolyte comprises the following raw materials in percent by weight: component A, namely 10-15 percent of conductive lithium salt, component B, namely 80-90 percent of organic solvent and component C, namely 2-8 percent of additive. The electrolyte has extremely high electrochemical stability. The freezing point is lowered, the ion migration capability is improved, the electrical conductivity is improved, the lithium ion transfer resistance is reduced, and the wettability of the electrolyte on a diaphragm under low-temperature conditions and the penetrability of the lithium ion to the diaphragm are improved. Therefore, the electrolyte has the characteristics of being capable of normally working in an environment with temperature of 50 DEG C below zero and being stable in performance and excellent in cycle indicators.

The invention discloses environmentally-friendly deicing/anti-icing solution, which belongs to the technical field of eliminating and preventing ice covering of a transportation tool by using a physical method. The environmentally-friendly deicing/anti-icing solution comprises a freezing point depression compound, water, a surfactant and a thickening agent, wherein the freezing point depression compound is at least one of propanediol and polybasic alcohol; the surfactant is a natural surfactant; and the thickening agent is a natural product. The components of the environmentally-friendly deicing/anti-icing solution can be degraded by microbes; and the environmentally-friendly deicing/anti-icing solution generates small hazard to the environment, and is environmentally-friendly.

A process for making a freezably stable emulsion based food salad. A freezing point depression agent, such as propylene glycol, is added to a water component of the emulsion to prevent the formation of ice crystals during freezing of the non-aqueous salad components and to prevent oil separation upon thawing. A hardenable oil such as partially hydrogenated soybean oil, provides an elevated emulsion melt point. Microbial control is maintained during processing by oxygenating the water component. The frozen food salad may be-containerized for shipping or used as a frozen sandwich filling.

The invention provides a method for yeast cell wall breaking. The method comprises the steps that yeast paste with water added is prepared into live bacterial suspension; cysteine or cysteine hydrochloride and neutral protease are added, the pH value is controlled to 6 to 8, thermal retardation hydrolyzing is performed for 6 to 48 hours under 40 to 60 DEG C, and yeast digest is obtained; yeast deposition is obaitned through centrifuging being performed to the yeast digest, water is added to prepare yeast cell suspending liquid, and the wall breaking ratio reaches above 95 percent through multi times freezing and microwave tempering. The invention integrates the cysteine promoting dissolution, gradient freezing point depression freezing and microwave repaid tempering, and therefore greatly improves the wall breaking ratio of the yeast cell. The cell wall breaking process of the invention has the advantages that the operation is simple, the facility request is low, and the cell wall breaking process is very suitable for the cell wall breaking of the beer yeast or the bakery yeast.

This invention relates to a structural coating comprising a liquid carrier (e.g., paint), a borate-based additive, and a dynamic stabilization material. The borate-based additive provides corrosion protection through electrochemical binding of active surface corrosive sites, lubrication enhancement through the creation and re-supply to a surface where friction contact occasionally occurs of a weak slip lane crystalline material which may be a locally formed product utilizing local atmospheric humidity, and a material for reaction with an initiator to provide for freezing point depression during coating application. The dynamic stabilization material creates a balance of stabilized material for supply of corrosion protection product, lubrication reduction product, and freezing point depression product.

The invention provides an oil-displacing agent for low condensate oil, which is a Gemini surfactant and ethylene-double (N-ethanesulfonic acid-ten amide) sodium salt. The oil-displacing agent for the low condensate oil can lead the freezing point of the low condensate oil to reduce, so that the low condensate oil is led to be in a flow state at existing oil layer temperature and can be easily extracted with an existing oil extraction method.

Disclosed herein is a cleaner concentrate comprising: greater than 10 weight percent of a freezing point depressant, 0.5 to 35 weight percent of oxalic acid, and an azole compound, wherein weight percent is based on the total weight of the cleaner concentrate.

The invention discloses an ultralow-temperature urea solution for an automobile and a preparation method thereof. The urea solution for the automobile is prepared from, by weight, 21-27 parts of urea,21-34 parts of ammonium salt and 45-60 parts of high purity water. The preparation method comprises the steps that urea, ammonium salt and high purity water are mixed in proportion, the mixture is stirred until completely dissolved in the condition of room temperature, then a filter element with the filtration precision 5 micrometers is adopted for filtration, and a finished product is obtained.According to the urea solution for the automobile, the freezing point of the urea solution for the automobile can be effectively reduced through addition of the ammonium salt component, so that the freezing point is lowered to 30 DEG C or below, it is unnecessary to additionally arrange any thermal insulation or heating part on the automobile to apply the urea solution to an automobile in the northern region, the urea solution has the advantages of wide application range and the like, and convenience is brought to storage, carrying and loading in the northern cold region.

Methods and systems of the invention, for achieving a liquid-applicable, aqueous-based coating composition that forms a water-impermeable, vapor permeable barrier coating when applied onto a construction surface and allowed to dry, involve mixing together separate first and second components, wherein the first component comprises an acrylic emulsion, flame retardant, clay, and optionally at least one additive selected from thickeners (e.g., cellulosic), fillers, and other conventional additives; and wherein the second component comprises a freezing point depressing agent with a specific type of thickener selected from the group of associative thickeners, alkali soluble emulsion thickeners, or mixture thereof, to obtain the liquid-applicable coating. The present invention achieves low temperature film formation without reliance upon calcium nitrite, calcium nitrate, or sodium chloride type of freezing point depressing salts. The coating can be applied at low (e.g., sub-freezing) temperatures onto a construction surface such as wood, fiberboard, gypsum, cement, concrete, and other building substrates to achieve an effective barrier membrane.