6 results about "Isohexanes" patented technology

Exemplary embodiments of the present technological advancement include pyridine-2,6-bis(phenylenephenolate) complexes that are useful as catalyst components for olefin polymerization and have enhanced solubility in non-aromatic hydrocarbons (e.g., isohexane). The improved solubility of these complexes was accomplished by the modification of the leaving group which generally leads to improved solubility, without adversely affecting the performance of the complex when used as a catalyst for olefin polymerizations.

The invention provides outdoor anti-aging grafted nail-free glue as well as a preparation method and application thereof, and the outdoor anti-aging grafted nail-free glue is prepared from 10 to 15 parts of linear butylbenzene thermoplastic elastomer, 3 to 6 parts of methyl methacrylate, 0.5 to 1 part of methacrylic acid, 15 to 25 parts of butanone, 8 to 12 parts of acetic ether, 0.3 to 1 part of toluene liquid of benzoyl peroxide, 1 to 2 parts of antioxidant, 16 to 30 parts of hydrogenated petroleum resin and 10 to 15 parts of isohexane. 25-40 parts of nano calcium carbonate and 10-15 parts of heavy calcium carbonate. By adopting a graft polymerization process of SBS, methacrylic acid and methyl methacrylate, the stability is improved, and a large steric hindrance group is introduced near a double bond through a grafting reaction for physical shielding; meanwhile, transparent hydrogenated petroleum resin and hydrogenated saturated double bonds are added, so that the thermal oxidation resistance and the ultraviolet resistance of the SBS nail-free glue are remarkably improved, the long-term viscosity is kept, and the aging resistance of the SBS nail-free glue is also improved.

Exemplary embodiments of the present technological advancement include pyridine-2,6-bis(phenylenephenolate) complexes that are useful as catalyst components for olefin polymerization and have improved solubility in non-aromatic hydrocarbons (e.g. isohexane). The improved solubility of these complexes was accomplished by the modification of the ligand framework at a specific position that led to improved solubility, but did not adversely affect the performance of the complex when used as a catalyst for olefin polymerizations.

The application provides a device and method for separating a mixture of chloromethane and isobutane, comprising an extractive rectification tower, a chloromethane and isobutane mixture feeding port, an extractant feeding port and a chloromethane gas phase outlet arranged on the extractive rectification tower; the extractant fed by the extractant feeding port comprises n-hexane and / or isohexane; a cooler connected with the bottom of the extractive rectification tower; an extractant recovery tower connected with the cooler; an isobutane recovery unit connected with the top of the extractant recovery tower; an extractant recovery tower tank reboiler connected with the bottom of the extractant recovery tower, and an extractant buffer tank connected by a pipeline. The application can separate chloromethane and isobutane and obtain high-purity chloromethane and isobutane by using the above device and a specific kind of extractant; in addition, the device uses energy coupling technology and has low energy consumption.

The application discloses a C5-C6 hydrocarbon conversion method. The method comprises the following steps: (1) C5-C6 hydrocarbon is separated by normal and iso separation, and the separated normal pentane and normal hexane are directly used as ethylene raw materials; (2) the separated iso-pentane and iso-hexane in step (1) are mixed with hydrogen and pass through a hydroconversion reaction zone, the hydroconversion reaction zone is filled with at least two hydroconversion catalyst beds, the active metal content of the hydroconversion catalysts decreases in turn along the flow direction, and the active metal content of the hydroconversion catalysts filled in the adjacent two catalyst beds differs by 1-25 percentage points in terms of oxides; and (3) the reaction effluent of step (2) enters a separation system, and the hydrogen-rich gas and the hydroconversion product are separated, the C2-C4 hydrocarbon in the hydroconversion product is directly used as ethylene raw materials, and the C5-C6 hydrocarbon is recycled to step (1) for continuous reaction. By adopting the method, the quality of the ethylene raw materials can be maximized, and the ethylene yield and the total triene yield of the ethylene device can be significantly improved.

Provided is a cleaning composition contained in an aerosol spray can, methods of making and using the cleaning composition, which comprises: a liquid cleaning mixture, comprising: a) a solvent selected from the group consisting of isohexane, isoheptane, and n-heptane and mixtures thereof; b) a de-aromatized hydrocarbon solvent having 7 to 8 carbon atoms in its molecule; c) a branched aliphatic alkane having 10 to 11 carbon atoms; d) from 5 to 15 parts by weight of ethanol, e) from 1 to 15 parts by weight of isopropanol, f) from 1 to 10 parts by weight of acetone, and g) from 0.01 to 0.2 parts by weight of iso-tridecanol polyoxyethylene ether having a HLB value of 12 to 13, and a gas propellant.