Abstract: A method of recycling plastic waste by feeding a quantity of PET-containing dry fines from the plastic waste to a chemical recycling facility; and depolymerizing in the chemical recycling facility at least a portion of the PET-containing dry fines; wherein the chemical recycling facility comprises a solvolysis facility for depolymerization and the solvolysis facility is a methanolysis facility, and wherein the dry fines are recovered from a solid-liquid separator and/or dust collector in a PET reclaimer facility and/or a manufacturer of PET articles, in which dust is generated from conveying, drying, densification, centrifugation processes, and/or grinding PET-containing plastic material.

Abstract: Processes and facilities for using one or more PET-containing materials as a feedstock to a chemical recycling facility, and in particular a solvolysis facility, are provided herein. The PET-containing materials used as feedstock may comprise a quantity of PET-containing dry fines. The PET-containing dry fines may be derived from various processes and facilities, including PET reclaimer facilities and/or manufacturers of PET articles. For example, the dry fines may be collected from solid-liquid separators and/or dust collectors from processes that include conveying, drying, densification, centrifugation processes, and/or grinding PET-containing plastic material. Such dry fines are generally undesirable or unusable to mechanical PET recycling facilities, and typically are sent to landfills and/or incinerators. However, the processes and facilities described herein make use of the PET and other plastics present in these otherwise undesirable or unusable dry fines.

Abstract: Densified textile aggregates are co-fed with a fuel into a partial oxidation gasifier. High solids concentrations in the feedstock composition can be obtained without significant impact on the feedstock composition stability and pumpability. A consistent quality of syngas can be continuously produced, including generation of carbon dioxide and a carbon monoxide/hydrogen ratio while stably operating the gasifier and avoiding the high tar generation of fluidized bed or fixed bed waste gasifiers and without impacting the operations of the gasifier. The syngas quality, composition, and throughput are suitable for produce a wide range of chemicals.

Abstract: Processes and facilities for using one or more PET-containing materials as a feedstock to a chemical recycling facility, and in particular a solvolysis facility, are provided herein. The PET-containing materials used as feedstock may comprise a quantity of PET-containing solidified purge material. The PET-containing solidified purge material may be derived from various processes and facilities, including PET reclaimer facilities, manufacturers of PET articles, and/or a polymer manufacturing facilities. For example, the purge material may be the solidified purge material from an extrusion and/or pelletization process. Such solidified purge materials are generally undesirable or unusable to mechanical PET recycling facilities, and typically are sent to landfills and/or incinerators. However, the processes and facilities described herein make use of the PET and other plastics present in these otherwise undesirable or unusable solidified purge materials.

Abstract: A method of recycling plastic waste by feeding a quantity of a PET-containing reclaimer colored plastic-containing mixture and/or MRF colored plastic-containing mixture separated from the plastic waste to a chemical recycling facility; and depolymerizing in the chemical recycling facility at least a portion of the PET-containing reclaimer colored plastic-containing mixture and/or MRF colored plastic-containing mixture, and further feeding at least a portion of the quantity of colored plastic-containing mixture to at least one density separation stage before depolymerizing, thereby producing a PET-enriched stream that is fed into a solvolysis facility within the chemical recycling facility, and wherein the solvolysis facility is a methanolysis facility.

Abstract: A method of recycling plastic waste by feeding a quantity of PET and metal-containing reclaimer co-product separated from the plastic waste to a chemical recycling facility, the quantity of metal-containing co-product comprises plastic flakes and at least 0.1 weight percent metals; and depolymerizing in the chemical recycling facility at least a portion of the plastic flakes; or depolymerizing in the chemical recycling facility at least a portion of the plastic articles, wherein the chemical recycling facility comprises a solvolysis facility for the depolymerization and the solvolysis facility is a methanolysis facility, and wherein the plastic articles are in the form of compressed bales; which further comprises processing at least a portion of the compressed bales to thereby produce a debaled quantity of plastic articles and the metals; and wherein the processing comprises reducing the size of the bales to form a quantity of plastic particulate solids having a D90 particle size of less than 2.

Abstract: A method of recycling plastic waste by feeding a quantity of PET and PVC-containing reclaimer flake reject separated from the plastic waste to a chemical recycling facility; and depolymerizing in said chemical recycling facility at least a portion of said PET- and PVC-containing reclaimer flake reject which further comprises feeding at least a portion of the flake reject into at least one density separation stage before depolymerizing, in which a PET-enriched stream and a polyolefins-enriched stream are produced from a waste plastic stream comprising the flake reject; wherein the flake reject comprises at least 1 weight percent of PVC on a dry basis, and wherein the flake reject comprises at least 0.1 weight percent and/or not more than 20 weight percent polyolefins on a dry basis, wherein the flake reject is fed directly into a solvolysis facility within the chemical recycling facility and the solvolysis facility is a methanolysis facility.

Abstract: Chemical recycling facilities for processing mixed waste plastic are provided herein. Such facilities have the capability of processing mixed plastic waste streams and utilize a variety of recycling facilities, such as, for example, solvolysis facility, a pyrolysis facility, a cracker facility, a partial oxidation gasification facility, an energy recovery facility, and a solidification facility. Streams from one or more of these individual facilities may be used as feed to one or more of the other facilities, thereby maximizing recovery of valuable chemical components and minimizing unusable waste streams.

Abstract: Efficient carbonylative synthesis of alkenes to form anhydrides using transition metal catalysts such as palladium-phosphine catalysts.

Abstract: Disclosed are improved catalytic carbonylation methods. In general, the methods are suitable for carbonylating a variety of esters in the presence of carbon monoxide or a source thereof and a catalyst system comprising a transition metal-carbene complex; or a neutral carbene or salt thereof together with a transition metal compound; and a halide source for use as a halide promoter.

Abstract: The present application discloses mixed ester terephthalate plasticizer compositions comprising: a compound of formula (I):, a compound of formula (II):, and a compound of formula (III):, wherein R1, R2, and n are defined herein. The present application also discloses resin compositions, insulation layers and cables comprising the plasticizer compositions.

Abstract: High concentrations of recycle polymer are gasified in a partial oxidation gasifier to make a syngas useful to make a variety of chemicals and polymers, such as cellulose ester. Polymers such as cellulose esters can be made that are obtained from sustainable sources, recycle sources, and are biodegradable. Circularity in the manufacture of textiles and/or plastics made from the fibers of such cellulose esters can now be achieved. The process of making such a syngas from high concentrations of recycle polymer (e.g. textiles and/or plastics) includes campaigning for the production of syngas.

Abstract: Processes for recovering dialkyl terephthalates. The processes can include exposing a polyester composition to one or more glycols to depolymerization conditions thereby providing one or more depolymerization products. The one or more glycols can include diethylene glycol (DEG), triethylene glycol (TEG), 1,4-cyclohexanedimethanol (CHDM), poly(ethylene glycol) (PEG), neopentyl glycol (NPG), propane diol (PDO), butanediol (BDO), 2-methyl-2,4-pentanediol (MP diol), poly(tetramethylene ether)glycol (PTMG), or a combination thereof. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate. Optionally, ethylene glycol (EG) produced from the depolymerization process can be recovered and re-used in a subsequent dialkyl terephthalate recovery or other process.

Abstract: Densified textile aggregates are co-fed with a fuel into a partial oxidation gasifier. High solids concentrations in the feedstock composition can be obtained without significant impact on the feedstock composition stability and pumpability. A consistent quality of densified textile derived syngas can be continuously produced, including generation of carbon dioxide and a carbon monoxide/hydrogen ratio while stably operating the gasifier and avoiding the high tar generation of fluidized bed or fixed bed waste gasifiers and without impacting the operations of the gasifier. The densified textile derived syngas quality, composition, and throughput are suitable for produce a wide range of chemicals and polymers, including methanol, acetic acid, methyl acetate, acetic anhydride, and cellulose esters through a variety of reaction schemes in which at least a portion of the chemical or polymer originates with densified textile derived syngas.

Abstract: Pre-ground plastics of small particle size not more than 2 mm are co-fed into a solid fossil fuel fed entrained flow partial oxidation gasifier. High solids concentrations in the feedstock stream can be obtained without significant impact on the feedstock stream stability and pumpability. A consistent quality of syngas can be continuously produced, including generation of carbon dioxide and a carbon monoxide/hydrogen ratio while stably operating the gasifier and avoiding the high tar generation of fluidized bed or fixed bed waste gasifiers and without impacting the operations of the gasifier. The subsequent syngas produced from this material can be used to produce a wide range of chemicals.

Abstract: Pre-ground plastics of small particle size not more than 2 mm are co-fed into a solid fossil fuel fed entrained flow partial oxidation gasifier. High solids concentrations in the feedstock stream can be obtained without significant impact on the feedstock stream stability and pumpability. A consistent quality of syngas can be continuously produced, including generation of carbon dioxide and a carbon monoxide/hydrogen ratio while stably operating the gasifier and avoiding the high tar generation of fluidized bed or fixed bed waste gasifiers and without impacting the operations of the gasifier. The subsequent syngas produced from this material can be used to produce a wide range of chemicals.

Abstract: Densified textile aggregates are co-fed with a fuel into a partial oxidation gasifier. High solids concentrations in the feedstock composition can be obtained without significant impact on the feedstock composition stability and pumpability. A consistent quality of densified textile derived syngas can be continuously produced, including generation of carbon dioxide and a carbon monoxide/hydrogen ratio while stably operating the gasifier and avoiding the high tar generation of fluidized bed or fixed bed waste gasifiers and without impacting the operations of the gasifier. The densified textile derived syngas quality, composition, and throughput are suitable for produce a wide range of chemicals and polymers, including methanol, acetic acid, methyl acetate, acetic anhydride, and cellulose esters through a variety of reaction schemes in which at least a portion of the chemical or polymer originates with densified textile derived syngas.

Abstract: Pre-ground plastics of small particle size not more than 2 mm are co-fed into a solid fossil fuel fed entrained flow partial oxidation gasifier. A syngas composition can be made by charging an oxidant and a feedstock composition comprising recycle plastics and a solid fossil fuel to a gasification zone within a gasifier; gasifying the feedstock composition together with the oxidant in said gasification zone to produce said syngas composition; and discharging at least a portion of said syngas composition from said gasifier; wherein the recycled plastics are added to a feed point comprising a solid fossil fuel belt feeding a grinder after the solid fossil fuel is loaded on the belt, a solid fossil fuel belt feeding a grinder before the solid fossil fuel is loaded onto the belt, or a solid fossil fuel slurry storage tank containing a slurry of said solid fossil fuel ground to a size as the size fed to the gasification zone.

Abstract: Processes and facilities for using one or more PET-containing materials as a feedstock to a chemical recycling facility, and in particular a solvolysis facility, are provided herein. The PET-containing materials used as feedstock may comprise colored plastic-containing mixtures derived as products or co-products from plastic reclaimer facilities and/or municipal recycling facilities. Such mixtures are generally undesirable or unusable to mechanical PET recycling facilities, and typically are sent to landfills and/or incinerators. However, the processes and facilities described herein make use of the PET and other plastics present in these otherwise undesirable or unusable colored plastic-containing mixtures.

Abstract: Processes and facilities for using one or more PET-containing materials as a feedstock to a chemical recycling facility, and in particular a solvolysis facility, are provided herein. The PET-containing materials used as feedstock may comprise a quantity of PET-containing solidified purge material. The PET-containing solidified purge material may be derived from various processes and facilities, including PET reclaimer facilities, manufacturers of PET articles, and/or a polymer manufacturing facilities. For example, he purge material may be the solidified purge material from an extrusion and/or pelletization process. Such solidified purge materials are generally undesirable or unusable to mechanical PET recycling facilities, and typically are sent to landfills and/or incinerators. However, the processes and facilities described herein make use of the PET and other plastics present in these otherwise undesirable or unusable solidified purge materials.