A process for the production of polyolefins comprising: feeding a slurry comprising at least one polymerization catalyst, at least one carrier liquid, first olefin monomer(s) and optionally at least one first comonomer into at least one loop reactor; polymerizing the first olefin monomer(s) and optionally the at least one first comonomer yielding a first polyolefin; withdrawing the first polyolefin from the loop reactor; feeding the first polyolefin to a gas-solids olefin polymerization reactor, wherein the gas-solids olefin polymerization reactor comprises: a top zone; a middle zone, which comprises a top end in direct contact with said top zone and which is located below said top zone, the middle zone having a generally cylindrical shape; and a bottom zone, which is in direct contact with a bottom end of the middle zone and which is located below the middle zone; introducing a fluidization gas stream into the bottom zone of the gas-solids olefin polymerization reactor; polymerizing second olefin monomer(s) and optionally at least one second comonomer in the presence of the polymerization catalyst and the first polyolefin to a second polyolefin in a dense phase formed by particles of said second polyolefin suspended in an upwards flowing stream of the fluidization gas in the middle zone; introducing a jet gas stream through one or more jet gas feeding ports in a jet gas feeding area of the middle zone at the dense phase in the middle zone of the gas-solids olefin polymerization reactor; withdrawing the second polyolefin from the gas-solids olefin polymerization reactor.

A process for the production of polyolefins comprising: feeding a slurry comprising at least one polymerization catalyst, at least one carrier liquid, first olefin monomer(s) and optionally at least one first comonomer into at least one loop reactor; polymerizing the first olefin monomer(s) and optionally the at least one first comonomer yielding a first polyolefin; withdrawing the first polyolefin from the loop reactor; feeding the first polyolefin to a gas-solids olefin polymerization reactor, wherein the gas-solids olefin polymerization reactor comprises: a top zone; a middle zone, which comprises a top end in direct contact with said top zone and which is located below said top zone, the middle zone having a generally cylindrical shape; and a bottom zone, which is in direct contact with a bottom end of the middle zone and which is located below the middle zone; introducing a fluidization gas stream into the bottom zone of the gas-solids olefin polymerization reactor; polymerizing second olefin monomer(s) and optionally at least one second comonomer in the presence of the polymerization catalyst and the first polyolefin to a second polyolefin in a dense phase formed by particles of said second polyolefin suspended in an upwards flowing stream of the fluidization gas in the middle zone; introducing a jet gas stream through one or more jet gas feeding ports in a jet gas feeding area of the middle zone at the dense phase in the middle zone of the gas-solids olefin polymerization reactor; withdrawing the second polyolefin from the gas-solids olefin polymerization reactor.

The invention relates to a multi-stage process for preparing 2,6-dialkylphenylacetic acids of the general formula (I) by reacting 2,6-dialkylbromobenzenes with (1) magnesium, (2) a formamide, (3) an acid, (4) hydrogenation of the benzaldehyde obtained, (5) activation of the benzyl alcohol obtained, (6) cyanation of the activated benzyl alcohol and (7) hydrolysis of the nitrile obtained.

The invention relates to a multi-stage process for preparing 2,6-dialkylphenylacetic acids of the general formula (I) by reacting 2,6-dialkylbromobenzenes with (1) magnesium, (2) a formamide, (3) an acid, (4) hydrogenation of the benzaldehyde obtained, (5) activation of the benzyl alcohol obtained, (6) cyanation of the activated benzyl alcohol and (7) hydrolysis of the nitrile obtained.

The present invention relates to a metal phase transformation compound and a method for preparing the same.

Production apparatus of triptane includes: carbon dioxide recovery unit configured to recover carbon dioxide from air; hydrogen generation unit configured to electrolyze water by renewable electricity to generate hydrogen; carbon monoxide generation unit configured to generate carbon monoxide from recovered carbon dioxide and hydrogen generated; methanol generation unit configured to generate methanol from carbon monoxide generated and hydrogen generated; acetic acid generation unit configured to generate acetic acid by reacting methanol generated with recovered carbon dioxide or with carbon monoxide generated; acetone generation unit configured to generate acetone and carbon dioxide from acetic acid generated; pinacolone generation unit configured to generate pinacolone from acetone generated; Grignard reagent generation unit configured to generate Grignard reagent from methanol generated; trimethyl butanol generation unit configured to generate 2,3,3-trimethyl-2-butanol by reacting pinacolone generated with Grignard reagent generated; and triptane generation unit configured to generate 2,2,3-trimethylbutane from 2,3,3-trimethyl-2-butanol generated.

Production apparatus of triptane includes: carbon dioxide recovery unit configured to recover carbon dioxide from air; hydrogen generation unit configured to electrolyze water by renewable electricity to generate hydrogen; carbon monoxide generation unit configured to generate carbon monoxide from recovered carbon dioxide and hydrogen generated; methanol generation unit configured to generate methanol from carbon monoxide generated and hydrogen generated; acetic acid generation unit configured to generate acetic acid by reacting methanol generated with recovered carbon dioxide or with carbon monoxide generated; acetone generation unit configured to generate acetone and carbon dioxide from acetic acid generated; pinacolone generation unit configured to generate pinacolone from acetone generated; Grignard reagent generation unit configured to generate Grignard reagent from methanol generated; trimethyl butanol generation unit configured to generate 2,3,3-trimethyl-2-butanol by reacting pinacolone generated with Grignard reagent generated; and triptane generation unit configured to generate 2,2,3-trimethylbutane from 2,3,3-trimethyl-2-butanol generated.

A catalyst composition for selectively hydrogenating a conjugated diene polymer in a homogeneous system is provided, wherein the conjugated diene polymer comprises a conjugated diene monomer or a combination of a conjugated diene monomer and a vinyl aromatic monomer. The catalyst composition includes the catalyst components of (a) a titanium compound; (b) an organometallic compound; and (c) an oligomer containing a polyglycol segment. The hydrogenated polymer produced using the catalyst composition and the method thereof is also provided.

The present invention relates to a display device comprising—a plurality of OLED pixels comprising at least two OLED pixels, the OLED pixels comprising an anode, a cathode, and a stack of organic layers, wherein the stack of organic layers—is arranged between and in contact with the cathode and the anode, and—comprises a first electron transport layer, a first hole transport layer, and a first light emitting layer provided between the first hole transport layer and the first electron transport layer, and—a driving circuit configured to separately driving the pixels of the plurality of OLED pixels, wherein, for the plurality of OLED pixels, the first hole transport layer is provided in the stack of organic layers as a common hole transport layer shared by the plurality of OLED pixels, and the first hole transport layer comprises (i) at least one first hole transport matrix compound consisting of covalently bound atoms and (ii) at least one electrical p-dopant selected from metal salts and from electrically neutral metal complexes comprising a metal cation and at least one anion and/or at least one anionic ligand consisting of at least 4 covalently bound atoms, wherein the metal cation of the electrical p-dopant is selected from alkali metals; alkaline earth metals, Pb, Mn, Fe, Co, Ni, Zn, Cd; rare earth metals in oxidation state (II) or (III); Al, Ga, In; and from Sn, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W in oxidation state (IV) or less, a method for preparing the display device and a chemical compound for use therein.

The present invention relates to a display device comprising—a plurality of OLED pixels comprising at least two OLED pixels, the OLED pixels comprising an anode, a cathode, and a stack of organic layers, wherein the stack of organic layers—is arranged between and in contact with the cathode and the anode, and—comprises a first electron transport layer, a first hole transport layer, and a first light emitting layer provided between the first hole transport layer and the first electron transport layer, and—a driving circuit configured to separately driving the pixels of the plurality of OLED pixels, wherein, for the plurality of OLED pixels, the first hole transport layer is provided in the stack of organic layers as a common hole transport layer shared by the plurality of OLED pixels, and the first hole transport layer comprises (i) at least one first hole transport matrix compound consisting of covalently bound atoms and (ii) at least one electrical p-dopant selected from metal salts and from electrically neutral metal complexes comprising a metal cation and at least one anion and/or at least one anionic ligand consisting of at least 4 covalently bound atoms, wherein the metal cation of the electrical p-dopant is selected from alkali metals; alkaline earth metals, Pb, Mn, Fe, Co, Ni, Zn, Cd; rare earth metals in oxidation state (II) or (III); Al, Ga, In; and from Sn, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W in oxidation state (IV) or less, a method for preparing the display device and a chemical compound for use therein.