摘要:
The present invention relates to a modified polyisobutylene polymer for rubber compounding including polyisobutylene having isobutylene as a main chain, unsaturated dicarboxylic anhydride, and a silane compound, and more particularly, 20 to 80 wt% of polyisobutylene having isobutylene as a main chain, 1 to 20 wt% of unsaturated dicarboxylic anhydride, and 1 to 60 wt% of a silane compound. In particular, when the polyisobutylene polymer of the present invention is used as an additive for rubber, the dispersibility of a filler can be significantly increased and both grip performance and rolling resistance can be improved.
摘要:
A method for preparing polybutene by polymerization of a raw material of a carbon number 4 (C4) compounds having an isobutene amount of 50 to 75 % by weight, is disclosed. The raw material of C4 compounds is selected from the group consisting of (a) C4 compound material obtained by adding high purity isobutene to C4 raffinate-1; (b) C4 compound material obtained by adding high amount isobutene mixture which is generated in an olefin conversion unit (OCU) process to C4 raffinate-1; (c) C4 compound material obtained by adding high purity to butane-butene oil (B-B oil); (d) C4 compound material obtained by adding high amount isobutene mixture which is generated in an olefin conversion unit (OCU) process to butane-butene oil (B-B oil); (e) C4 compound material obtained by adding a dilute solvent to high purity isobutene; (f) C4 compound material obtained by adding a dilute solvent to high amount isobutene mixture which is generated in an olefin conversion unit (OCU) process; (g) C4 compound material obtained by adding high purity isobutene to a mixture generated in dehydrogenation reaction that converts isobutane to isobutene; and (h) C4 compound material obtained by adding high amount isobutene mixture which is generated in an olefin conversion unit (OCU) process to a mixture generated in dehydrogenation reaction that converts isobutane to isobutene.
摘要:
Disclosed are an apparatus and method for preparing polybutene having various molecular weights by using complex catalysts of different molar ratios. The apparatus for preparing polybutene having various molecular weights, comprises: a complex catalyst preparing device for preparing a high-activity complex catalyst and a low-activity complex catalyst to form highly reactive polybutene through polymerization; a high-molar ratio complex catalyst system for controlling the storage and supply of the high-activity complex catalyst; a low-molar ratio complex catalyst system for controlling the storage and supply of the low-activity complex catalyst; and a reactor to which reaction raw materials including the high-activity complex catalyst, the low-activity complex catalyst, and isobutene are supplied to be polymerized into highly reactive polybutene.
摘要:
Disclosed is a method for preparing a highly reactive polybutene of high quality having low fluorine content and high vinylidene content at high mileage of catalyst with economy. The method for preparing a polybutene includes: performing a selective hydrogenation reaction of diolefin among C4 hydrocarbon components produced from petroleum refineries or naphtha cracking centers, which involve cracking of crude oils, and simultaneously an isomerization reaction of 1-butene to 2-butene and then isolating an isobutene feedstock through fractional distillation; and polymerizing the isobutene feedstock obtained by the fractional distillation.
摘要:
Disclosed a method for preparing polybutene by using a catalyst including normal propanol, wherein the polybutene has 40 to 70% of vinylidene content and 10% or more of tetra-substituted double bond content by using a complex catalyst including normal propanol as a cocatalyst and a main catalyst such as boron trifluoride. The method comprises: introducing, to a raw reaction material including 10 wt% or more of isobutene, a complex catalyst including normal propanol as a cocatalyst and boron trifluoride as a main catalyst; and polymerizing the raw reaction material at a reaction temperature of -33 to 33°C under a reaction pressure of 3 to 50 kg/cm 2 , wherein the vinylidene content is adjusted by adjusting the reaction temperature.
摘要:
There are disclosed an apparatus and a method for selectively preparing a high reactivity polybutene, a midrange reactivity polybutene and a non-reactive polybutene in a single plant. The apparatus for selectively preparing a reactive polybutene and a non-reactive polybutene, comprises: a reactive polybutene polymerization catalyst feeder for polymerization of the reactive polybutene; a non-reactive polybutene polymerization catalyst feeder for polymerization of the non-reactive polybutene; and a reactor for polymerizing a reactant including isobutene into polybutene, wherein the reactive polybutene polymerization catalyst feeder provides a catalyst to yield the reactive polybutene; and the non-reactive polybutene polymerization catalyst feeder provides a catalyst to yield the non-reactive polybutene.
摘要:
A method for removing the fluorine component from waste water which is produced during the manufacturing process of highly reactive polybutene and contains high concentration of fluorine component is disclosed. The method comprises a step of adding to the waste water a treating agent selected from a group of Al compound, Ca compound and mixture thereof at temperature of 50 to 300°C for reaction, whereby boron trifluoride neutralized salt is decomposed to form Al salt or Ca salt of fluorine component so that the fluorine component is removed in the form of the Al salt or the Ca salt of fluorine component.
摘要:
Disclosed is a method for preparing polybutene in which iso-butene in a C4 mixture is very effectively utilized, thereby polybutene productivity is more improved in comparison with a conventional method for preparing polybutene by using a conventional C4 mixture. The method for preparing polybutene comprises the steps of: supplying a C4 mixture to an isomerization reactor in which (i) 1-butene is isomerized into 2-butene by a hydrogen isomerization reaction using an isomerization catalyst in an isomerization zone of the isomerization reactor and (ii) iso-butene and 2-butene are separated by fractional distillation in a fractional distillation zone; supplying a C4 mixture containing 2-butene which is separated in the isomerization reactor to a skeletal isomerization reactor, in which a part of normal-butene is skeletal isomerized into iso-butene by a skeletal isomerization reaction using a skeletal isomerization catalyst, and the obtained skeletal isomerization mixture is supplied and recycled to the isomerization reactor; and supplying (i) a raw material containing the iso-butene of high concentration and which is separated from the isomerization reactor and (ii) a polymerization catalyst to a polybutene polymerization reactor and thereby producing polybutene by a polymerization reaction.