King Fahd University of Petroleum and Minerals

Saudi Arabian Oil Company

Saudi Basic Industries Corporation

King Abdulaziz City for Science and Technology

Muhammad Atiqullah

Anwar Hossaen

Wei Xu

Abdullah Raddad Al-Malki

Faisal Mohammed Al-Thenayan

Abdel Salam Al-Sarkhi

Syriac J Palackal

Akhlaq A Moman

Mohammad Mozahar Hossain

Atieh Abu-Raqabah

Mamdouh Ahmad Al-Harthi

Anwar Ul-Hamid

Faizur Rahman

Muhammad A Al-Saleh

Muhammad Naseem Akhtar

Siripon Anantawaraskul

Abdul-Hamid M Emwas

Muhammad Ibrahim

Javaid H Khan

A catalyst consisting essentially of at least one tertiary monophenyl amine having a formula RRN-aryl, where Rand Rare the same or different, and each is a hydrogen, an alkyl, or a cycloalkyl group, where at least one of Rand Rcontain at least one carbon atom; at least one titanium halide having a formula TiX, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlRYwhere R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-3. Further, the catalyst is absent of a carrier or support.

Catalyst composition for making ultra high molecular weight poly (alpha-olefin) drag reducing agents

A method of reducing drag in a conduit. The method includes producing ultra high molecular weight (UHMW) C-C&#x3b1;-olefin drag reducing agent (DRA) and introducing the UHMW C-C&#x3b1;-olefin polymer DRA into the conduit to reduce drag in the conduit. The catalyst consists essentially of at least one tertiary monophenyl amine selected from the group consisting of N,N-diethylaniline, N-ethyl-N-methylparatolylamine, N,N-dipropylaniline, N,N-diethylmesitylamine, and combinations thereof; at least one titanium halide having a formula TiX, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlRYwhere R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-20. Further, the catalyst is absent of a carrier or support.

Method of reducing drag in a conduit

A method of producing ultra high molecular weight (UHMW) C-C&#x3b1;-olefin drag reducing agent (DRA). The method includes polymerizing in a reactor a first &#x3b1;-olefin monomer in the presence of catalyst and hydrocarbon solvent to produce the DRA. The catalyst consists essentially of at least one tertiary monophenyl amine having a formula RRN-aryl, where Rand Rare the same or different, and each is a hydrogen, an alkyl, or a cycloalkyl group, where at least one of Rand Rcontain at least one carbon atom; at least one titanium halide having a formula TiX, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlRYwhere R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-20. Further, the catalyst is absent of a carrier or support.

Catalyst composition and a process for making ultra high molecular weight poly (alpha-olefin) drag reducing agents

A method for quantitative determination of nonisothermal thermooxidative degradation effects of a polyolefin material containing a residual catalyst. The method includes determining a first thermooxidative degradation by obtaining a thermogravimetric analysis spectrum of polyolefin, and then modifying the first thermooxidative degradation based on a structure of the residual catalyst to obtain final thermooxidative degradation properties of the polyolefin.

Method of quantitative determination of nonisothermal thermooxidative degration effects of a polyolefin material comprising a residual catalyst

The supported metallocene catalyst for olefin polymerization is (BuCp)ZrClimpregnated onto a silica support having MAO tethered thereon. The catalyst is made by dehydroxylating silica, adding MAO dropwise to a slurry of the silica in toluene, heating the mixture for several hours, reacting (BuCp)ZrClin toluene solvent with the MAO/silica support, and drying the catalyst under vacuum. The catalyst may be used, e.g., to catalyze copolymerization of ethylene with 1-hexene.

Supported metallocene catalyst for olefin polymerization

The present invention relates to a supported catalyst system for olefin polymerization which comprises at least one metallocene component and a support of an inorganic oxide of silica, aluminum or a polymer containing hydroxyl groups. The support is modified with an organogermane and/or organotin compound. The inventive catalyst system produces minimal reactor fouling, has excellent productivity and good hydrogen responsiveness. The present invention also relates to a process for preparing the catalyst system and to the slurry/suspension or gas-phase polymerization of olefins using the catalytic system, optionally with a small amount of aluminoxane cocatalyst.

Supported metallocene catalyst system for olefin polymerization, method for making and using the same

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Dhahran, Saudi Arabia

Muhammad Atiqullah