418 results about "Isopropylamine" patented technology

The invention discloses a method for synthesizing nanometer ZSM-5 molecular sieve, which belongs to the technical field of inorganic chemosynthesis. The method comprises steps as follows: sodium metaaluminate or aluminium sulphate, silica sol or water glass, sodium hydroxide and isopropylamine are prepared into reaction mixer; the reaction mixer is subjected to hydrothermal crystallization; and the reaction mixer after the hydrothermal crystallization is filtered, washed, dried and baked conventionally to obtain nanometer ZSM-5 molecular sieve. The synthesized ZSM-5 molecular sieve has the advantages of higher specific surface, short production flow and low cost, and the section of the synthesized ZSM-5 molecular sieve crystal grain has an average diameter not larger than 100 nm, thereby facilitating industrialization production and application.

The invention relates to an aid suitable for multiple glyphosate salt water agents. The aid has a wide application range, and can be used as a synergist for multiple glyphosate salt water agents including ammonium glyphosate, glyphosate isopropylamine, glyphosate dimethylamine, glyphosate ethanol amine, glyphosate triisopropanolamine, glyphosate triethylamine, glyphosphate-trimesium, and glyphosate potassium. The aid is composed of cocamidopropyl betaine, sodium cocoyl sarcosinate, iso-tridecanol polyoxyethylene ether, alkyl glucoside, ammonium sulfate, and water agent. When the weight of the aid accounts for 5 to 20% of various glyphosate water agents, the aid can guarantee the storage stability of water agents and has an excellent synergetic effect on glyphosate.

Linear Alkyl amine polyethoxylated containing in the alkyl chain 16 to 20 carbon atoms are well known surfactants for glyphosate formulations, which have synergistic effects, besides the reduction of surface tension.Concerns on environment and health negative effects of these surfactants forced the search to new compounds.Branched alkyl alcohol polyethoxylated with alkyl chains with less carbon atoms like 10-12 have been earlier used together with the linear alkylamine polyethoxylated in order to reduce the micelle formation and therefore the surface tension. In this way the content of the classical long chain alkylamines polyethoxylated could be reduced.Branches in the alkyl chain create steric hindrance to micelle formation. Micelles consisting of surfactant molecules reduce the amount of surfactant available to decrease the surface tension.Because of miscibility limitations, the content of the branched alcohol polyethoxylated is limited.We found that a branched alkyl amine polyethoxylated mixed or not with a branched alkyl alcohol polyethoxylated makes possible a reduction of isopropylamine, which is a co-formulant, and avoids the micelle formation, which is the most important. The speed of penetration of the solution in water of the glyphosate formulation through the membranes of the leaves of the weeds is therefore strongly improved, therefore improving the efficacy as an herbicide.

Disclosed is a herbicidal composition which combines two known active ingredients at concentrations of the individual active ingredients below the level generally necessary for the individual ingredients to exhibit herbicidal activity. The herbicidal activity of the disclosed composition is greater than that of either of the individual active ingredients used alone. One of the active ingredients is a fatty acid based composition selected from caprylic acid, pelargonic acid, capric acid, undecanoic acid, 10-undecanoic acid, lauric acid, oleic acid, salts thereof and mixtures thereof. In addition, other fatty acid or fatty acid salt mixtures may be used, such as soybean fatty acid or coconut fatty acid. This component is present at a concentration range of about 0.1 to 3.0 percent by weight. The other active ingredient is a glyphosate-based herbicidal active ingredient, e.g., the isopropyl amine salt of N-(phosphonomethyl) glycine, present at about 0.08 to 1.0 percent by weight.

The invention provides methods and compositions for preparing lisdexamfetamine and salts thereof. More particularly, the invention provides, for example, methods of preparing lisdexamfetamine from D-amphetamine.

A composition for removing mercaptan from a gas stream containing at least one acid gas in addition to a mercaptan, the composition comprising a physical and / or chemical solvent for H2S and an inclusion compound for the mercaptan. A process of treating gas stream using the composition. The inclusion compound is selected from the group consisting of, cyclodextrin, cryptand, calixarene, cucurbituril. The chemical solvent may be monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA, diisopropylamine (DIPA), diglycolamine (DGA) and methyldiethanolamine (MDEA). Examples of useful physical solvents include cyclotetramethylene sulfone (sulfolane) and its derivatives, aliphatic acid amides, NMP (n-methylpyrrolidone), N-alkylated pyrrolidones and corresponding piperidone, methanol and mixtures of dialkethers of polyethylene glycols. The method comprises scrubbing preferably the natural gas with an aqueous solution comprising the above compounds followed by a stripping regeneration step.

The invention relates to an additive for gasoline, in particular to an additive for gasoline, which can purify the tail gas discharged by a vehicle using the gasoline after being added into the gasoline and can also be used for directly replacing fuel. The additive of the invention contains methanol or ethanol, isopropanol, isobutanol, xylene, toluene, hydrogenated naphtha, isobutane, methyl tertiary butyl ether, benzyl alcohol, isopropylamine, isooctane, methyl isobutyl ketone and isohexane, wherein the weight ratio of the alcohols of the methanol or the ethanol, the isopropanol and the isobutanol accounts for 47%-55%, the weight ratio of the xylene and the toluene accounts for 19%-31%, and the weight ratio of the hydrogenated naphtha, the isobutane, the methyl tertiary butyl ether, the benzyl alcohol, the isopropylamine, the isooctane, the methyl isobutyl ketone and the isohexane accounts for 16%-23%. The invention has the advantages that after the additive is used, the content of the harmful gas in the tail gas of vehicles can be lowered, and the air pollution can be reduced, thereby reducing the damage of the tail gas of vehicles to the ozonosphere in the atmosphere and reducing the conditions of causing global warming.

The invention relates to a method for preparing substituted nicotinamide of a formula (1), which comprises the following steps: step 1): 1, 4-dichlorophthalazine of a formula (I), a compound of a formula (II) and a compound of a formula (IV) are used as starting raw materials to react, and a compound of a formula (V) is obtained by a one-pot method; the preparation method comprises the following steps of 1, carrying out a saponification reaction on a compound shown in a formula (V) to obtain a compound shown in a formula (VI), and 2, carrying out a saponification reaction on the compound shown in the formula (V) to obtain a compound shown in a formula (VI), and 3, carrying out a reaction on the compound shown in the formula (VI) and isopropylamine in the presence of a condensing agent to obtain N-isopropyl-6-(((3-(5-(methoxymethyl) isoxazole-3-yl)-[1, 2, 4] triazole [3, 4-a] phthalazin-6-yl) oxygen) methyl) nicotinamide shown in a formula (1).