Abstract: A method and system for separating light hydrocarbons are disclosed, wherein the method comprises compression, cooling, absorption, desorption, rectification, cracking, and recycling cracked gas to the compression step.

Abstract: A method and system for separating light hydrocarbons are disclosed, wherein the method comprises compression, cooling, absorption, desorption, rectification, cracking, and recycling cracked gas to the compression step.

Abstract: A bracket for installing a sink, including a fixed base and a support rod, wherein the fixed base is provided with an installing structure for installing the fixed base onto a wall or a table wall, a lower end of the support rod extends into the fixed base in an upward-downward movable manner, the fixed base and the support rod are provided with an adjustment connection structure for enabling an upward-downward adjustment of the support rod and a rotatable installation of the support rod in the fixed base, an upper end portion of the support rod is provided with a jacking structure for abutting against a corner between a sink body of the sink and an installing plate for the sink, and the fixed base is installed with a holding structure for holding the lower end of the support rod.

Abstract: A bracket for installing a sink is provided by the present disclosure, which includes a fixed base and a support rod, wherein the fixed base is provided with an installing structure for installing the fixed base onto a wall or a table wall, a lower end of the support rod extends into the fixed base in an upward-downward movable manner, the fixed base and the support rod are provided with an adjustment connection structure for enabling an upward-downward adjustment of the support rod and a rotatable installation of the support rod in the fixed base, an upper end portion of the support rod is provided with a jacking structure for abutting against a corner between a sink body of the sink and an installing plate for the sink, and the fixed base is installed with a holding structure for holding the lower end of the support rod.

Abstract: A window type air conditioner rack, having an upper frame main rack and a diagonal bracing rack inserted to the upper frame main rack; the diagonal bracing rack is adjustably fixed inside the upper frame main rack; the upper frame main rack has a windowsill connection assembly and horizontal supporting pillars fixedly mounted to the an outer side of the windowsill connection assembly.

Abstract: A window type air conditioner rack, having an upper frame main rack and a diagonal bracing rack inserted to the upper frame main rack; the diagonal bracing rack is adjustably fixed inside the upper frame main rack; the upper frame main rack has a windowsill connection assembly and horizontal supporting pillars fixedly mounted to the an outer side of the windowsill connection assembly.

Abstract: The present invention relates to silicon ether compounds having a general formula (I), a method for the preparation thereof and use thereof as a component of catalysts for polymerization of olefins. In particular, in propylene polymerization, catalyst systems comprising the silicon ether compounds as external electron donor component exhibit good hydrogen response, and can be used to prepare polymer having high isotacticity at high yield. wherein R1-R10 groups are as defined in the description.

Abstract: The present invention relates to silicon ether compounds having a general formula (I), a method for the preparation thereof and use thereof as a component of catalysts for polymerization of olefins. In particular, in propylene polymerization, catalyst systems comprising the silicon ether compounds as external electron donor component exhibit good hydrogen response, and can be used to prepare polymer having high isotacticity at high yield. wherein R1-R10 groups are as defined in the description.

Abstract: The present invention relates to a silicon ether compound having general formula (I): wherein, R and R1-R10 groups, which may be Identical or different, represent hydrogen, halogen, C1-C20 linear or branched alkyl, C3-C20 cycloalkyl, C8-C20 aryl, C7-C20 alkaryl or C7-C20 aralkyl group, and two or more R groups can be linked to form saturated or unsaturated condensed ring structure which is optionally substituted by a group having the same meanings with that of R1, R and R1-R10 groups optionally contain one or more hetero-atoms replacing carbon atom, hydrogen atom or the both, said heteroatom is selected from the group consisting of nitrogen, oxygen, sulfur, silicon, phosphorus and halogen atom, and A represents carbon atom or silicon atom. The present invention also relates to a method for the preparation of the silicon ether compounds of general formula (I) and a process for polymerization of olefins.

Abstract: The present invention relates to a silicon ether compound having general formula (I): 1