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1. WO2020068525 - METHODS FOR MAKING SUPPORTED CHROMIUM CATALYSTS WITH INCREASED POLYMERIZATION ACTIVITY

Publication Number WO/2020/068525
Publication Date 02.04.2020
International Application No. PCT/US2019/051809
International Filing Date 19.09.2019
IPC
C08F 110/02 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
110Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
02Ethene
B01J 23/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
CPC
B01J 21/12
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
21Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
12Silica and alumina
B01J 23/002
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
002Mixed oxides other than spinels, e.g. perovskite
B01J 23/26
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
16of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
24Chromium, molybdenum or tungsten
26Chromium
B01J 2523/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2523Constitutive chemical elements of heterogeneous catalysts
B01J 27/047
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
02Sulfur, selenium or tellurium; Compounds thereof
04Sulfides
047with chromium, molybdenum, tungsten or polonium
B01J 27/132
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
06Halogens; Compounds thereof
132with chromium, molybdenum, tungsten or polonium
Applicants
  • CHEVRON PHILLIPS CHEMICAL COMPANY LP [US]/[US]
Inventors
  • MCDANIEL, Max P.
  • CLEAR, Kathy S.
Agents
  • WALTER, Chad E.
Priority Data
62/735,21824.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHODS FOR MAKING SUPPORTED CHROMIUM CATALYSTS WITH INCREASED POLYMERIZATION ACTIVITY
(FR) PROCÉDÉS DE FABRICATION DE CATALYSEURS AU CHROME SUPPORTÉ AYANT UNE ACTIVITÉ DE POLYMÉRISATION ACCRUE
Abstract
(EN)
Methods for making a supported chromium catalyst are disclosed, and can comprise contacting a silica-coated alumina containing at least 30 wt. % silica with a chromium-containing compound in a liquid, drying, and calcining in an oxidizing atmosphere at a peak temperature of at least 650 °C to form the supported chromium catalyst. The supported chromium catalyst can contain from 0.01 to 20 wt. % chromium, and typically can have a pore volume from 0.5 to 2 mL/g and a BET surface area from 275 to 550 m2/g. The supported chromium catalyst subsequently can be used to polymerize olefins to produce, for example, ethylene-based homopolymers and copolymers having high molecular weights and broad molecular weight distributions.
(FR)
L'invention concerne des procédés de fabrication d'un catalyseur au chrome supporté et peut comprendre la mise en contact d'une alumine revêtue de silice contenant au moins 30 % massiques de silice avec un composé contenant du chrome dans un liquide, le séchage et la calcination dans une atmosphère oxydante à une température de crête d'au moins 650 °C en vue de former le catalyseur au chrome supporté. Le catalyseur au chrome supporté peut contenir de 0,01 à 20 % massiques de chrome et peut typiquement présenter un volume de pores de 0,5 à 2 mL/g et une surface BET de 275 à 550 m2/g. Le catalyseur au chrome supporté peut ensuite être utilisé pour polymériser des oléfines afin de produire, par exemple, des homopolymères et des copolymères à base d'éthylène ayant des poids moléculaires élevés et des distributions de poids moléculaire large.
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