71 results about "Tridecane" patented technology

The invention relates to a novel technique for preparing long-chain alkane efficiently through a multifunctional catalyst in a one-step method. The novel technique can be used for producing the long-chain alkane in one step with high selectively under a relative mild condition, and solve the problems of strict reaction condition, low energy efficiency and low alkane selectivity in a process of preparing the long-chain alkane by biomass derivatives. According to the technique, condensation products (C8, C9, C13 and C15) of a biomass derivative, namely furfural or HMF (Hydroxy Methyl Furfural), and acetone are taken as the raw materials, and by designing the three-center multifunctional catalyst of metal (I)-metal (II)-acid, the original two steps of independent reactions which require strict reaction conditions and need different catalysts to join in are combined into an one-step reaction which requires tender reaction conditions, so that the selectivity on corresponding alkane (octane, nonane, tridecane and pentadecane) is improved greatly, the highest yield can be 97%, and meanwhile, a step of separating the product from the catalyst is omitted, therefore, the energy efficiency of the while process is improved by a great step.

Novel process for the preparation of finely divided, nano-structured, olivine lithium metal phosphates (LiMPO4) (where metal M is iron, cobalt, manganese, nickel, vanadium, copper, titanium and mix of them) materials have been developed. This so called Polyol” method consists of heating of suited precursor materials in a multivalent, high-boiling point multivalent alcohol like glycols with the general formula HO—(—C2H4O—), —H where n=1-10 or HO—(—C3H6O—)n—H where n=1-10, or other polyols with the general formula HOCH2—(—C3H5OH—)n—H where n=1-10, like for example the tridecane-1,4,7,10,13-pentaol. A novel method for implementing the resulting materials as cathode materials for Li.-ion batteries is also developed.

The present invention particularly discovered strains that are capable of producing a long-chain dicarboxylic acid by culturing microorganisms belonging to Candida vini Candida entamophila, Candida blankii and Pichia farinosa which has the ability to produce a long-chain dicarboxylic acid in a liquid medium containing a straight-chain saturated hydrocarbon (tridecane) as substrate.

The invention relates to a disinfectant, in particular to a disinfectant containing aldehyde derivatives and tridecane quaternary ammonium salt derivatives. The disinfectant comprises 1 part to 5 parts of hexamethylene tetramine and 1 part of benzalkonium bromide according to the parts by weight. The disinfectant has the advantages of simple preparation, excellent disinfection effect, long periodof validity, excellent environmental-protection performance, low irritability, no toxic and no harm to the human body and the animals and the like; and the disinfectant can be widely applied to disinfection and sterilization for air, various tools, hand parts and equipment pipelines.

The present invention relates to a high-yield method for preparing highly pure (3S,4S)-4-((R)-2-(benzyloxy)tridecyl)-3-hexyl-2-oxetanone using a metal salt of (2S,3S,5R)-2-hexyl-3,5-dihydroxyhexadecanoic acid as an intermediate.

The invention relates to a preparation method for a water-soluble quaternary ammonium ion fluorescent carbon dot, and belongs to the technical field of carbon dot materials. The preparation method for the water-soluble quaternary ammonium ion fluorescent carbon dot comprises the following steps: 1) carrying out hydrothermal reaction after sodium carboxymethylcellulose and 4,7,10-3 oxygen-1,13-tridecane diamine are mixed, and carrying out dialysis after cooling to obtain carboxylation fluorescent carbon dot solution; 2) adding 3-chloro-2-hydroxypropyl-trimethylammonium chloride and catalyst into the carboxylation fluorescent carbon dot solution obtained in 1) to be subjected to esterification reaction, cooling, and carrying out centrifugation and dialysis to obtain the water-soluble quaternary ammonium ion fluorescent carbon dot. According to the preparation method for the water-soluble quaternary ammonium ion fluorescent carbon dot, the sodium carboxymethylcellulose is taken as a carbon source, so that the carbon source is environmentally-friendly, and reproducible and has wide sources and low cost, and the effective utilization of renewable resources can be realized. The preparation method provided by the invention has the advantages of simple preparation process, high yield and low cost, is very suitable for mass production and is favorable for popularization.