The present invention relates to a method for preparing a polyether amine catalyst, and polyether amine. A polyether amine catalyst is a supported metal catalyst; γ-Al.sub.2O.sub.3 is used as a carrier; basic cupric carbonate, basic nickel carbonate and basic cobalt carbonate are used as precursors of supported metals; and the polyether amine catalyst is prepared by performing twice adsorption roasting and once reduction by means of an equivalent-volumetric impregnation method. Easier decomposition is achieved by using basic carbonate, and only water and carbon dioxide are generated, such that processes and costs for treating waste gases can be saved. By using the polyether amine catalyst to prepare polyether amine, a conversion rate and primary amine selectivity can be improved, and the color of products can be reduced. Therefore, the obtained polyether amine can have higher activity and wider application.

The present disclosure relates to a method for regenerating a waste organic zinc catalyst by performing surface modification using a dicarboxylic acid and a zinc compound. When using the method for regenerating an organic zinc catalyst according to the present disclosure, the organic zinc catalyst can be regenerated using a convenient method which modifies the dicarboxylic acid and the zinc compound in an alternately repeated manner.

An article of manufacture includes a three-dimensional (3D) printed object for chemical reaction control. The 3D printed object includes a chemical reactant to be released to control a chemical reaction according to a chemical reactant release profile. The chemical reactant release profile is determined based on a shape of the 3D printed object.

Compositions and methods for selective olefin (e.g., ethylene) polymerization comprising metal organic frameworks (MOFs) are generally provided. In some embodiments, a MOF comprises a plurality of metal ions, each coordinated with at least one ligand comprising at least two unsaturated N-heterocyclic aromatic groups arranged about an organic core.

An article of manufacture includes a three-dimensional (3D) printed object for chemical reaction control. The 3D printed object includes a chemical reactant to be released to control a chemical reaction according to a chemical reactant release profile. The chemical reactant release profile is determined based on a shape of the 3D printed object.

An article of manufacture includes a three-dimensional (3D) printed object for chemical reaction control. The 3D printed object includes a chemical reactant to be released to control a chemical reaction according to a chemical reactant release profile. The chemical reactant release profile is determined based on a shape of the 3D printed object.

The present invention is directed to catalysts and processes for catalyzing two or more chemical reactions with a multifunctional catalyst in a reaction vessel. The processes include steps for introducing one or more reagents to a reaction vessel containing a multifunctional catalyst; contacting the one or more reagents with a first portion of the multifunctional catalyst to produce an intermediate; contacting the intermediate with a second portion of the multifunctional catalyst to produce a product; and removing the product from the reaction vessel. In certain embodiments, the multifunctional catalyst may have a first portion with carbonylation functionality for catalyzing the production of a beta-lactone intermediate from an epoxide reagent and a carbon monoxide reagent. In certain embodiments, the multifunctional catalyst may have a second portion with a functionality suitable for polymerization, co-polymerization, and/or modification of a beta-lactone intermediate. In preferred embodiments, the first portion and second portion are bonded to a heterogenous support.

An article of manufacture includes a three-dimensional (3D) printed object for chemical reaction control. The 3D printed object includes a chemical reactant to be released to control a chemical reaction according to a chemical reactant release profile. The chemical reactant release profile is determined based on a shape of the 3D printed object.

An article of manufacture includes a three-dimensional (3D) printed object for chemical reaction control. The 3D printed object includes a chemical reactant to be released to control a chemical reaction according to a chemical reactant release profile. The chemical reactant release profile is determined based on a shape of the 3D printed object.

Compositions and methods for selective olefin (e.g., ethylene) polymerization comprising metal organic frameworks (MOFs) are generally provided. In some embodiments, a MOF comprises a plurality of metal ions, each coordinated with at least one ligand comprising at least two unsaturated N-heterocyclic aromatic groups arranged about an organic core.