Disclosed are methods for dehydrating a water containing source of formaldehyde in which water is separated from the water containing source of formaldehyde using a zeolite membrane. In certain aspects, the water containing source of formaldehyde includes a separation enhancer having a relative static permittivity ranging from 2.5 to 20, and the water containing source of formaldehyde may further include methanol. In certain aspects, (meth)acrylic acid alkyl ester may be produced using the dehydrated source of formaldehyde.

There is disclosed a method for manufacturing an organic processing fluid for patterning of a chemical amplification type resist film, comprising a step of causing a fluid containing an organic solvent to pass through a filtration device having a fluid input portion, a fluid output portion, and a filtration filter film provided in a flow path that connects the fluid input portion and the fluid output portion with each other, wherein an absolute value (|T.sub.IT.sub.o|) of a difference between a temperature (T.sub.I) of the fluid in the fluid input portion and a temperature (T.sub.o) of the fluid in the fluid output portion is 3 C. or lower, a filtration speed of the fluid in the filtration device is 0.5 L/min/m.sup.2 or greater, and a filtration pressure by the fluid in the filtration device is 0.10 MPa or lower.

The present invention relates to a process for the direct synthesis of acetone from synthesis gas and a solid multicomponent catalyst; wherein said multicomponent catalyst integrates at least one carbonylation active component and one ketonisation active component; wherein said carbonylation component comprises a zeotype material having a network structure comprising 8-membered ring units; wherein said ketonisation component comprises a hydroxide, oxide or any combination thereof selected from the list of yttrium, zirconium, titanium, aluminium, silicon, vanadium, niobium, tantalum, chromium, molybdenum, manganese, zinc, gallium, indium, tin, bismuth, lanthanide elements, or any combination thereof.

The present invention relates to a process for the direct synthesis of acetone from synthesis gas and a solid multicomponent catalyst; wherein said multicomponent catalyst integrates at least one carbonylation active component and one ketonisation active component; wherein said carbonylation component comprises a zeotype material having a network structure comprising 8-membered ring units; wherein said ketonisation component comprises a hydroxide, oxide or any combination thereof selected from the list of yttrium, zirconium, titanium, aluminium, silicon, vanadium, niobium, tantalum, chromium, molybdenum, manganese, zinc, gallium, indium, tin, bismuth, lanthanide elements, or any combination thereof.

Embodiments of the present disclosure include a metal-organic framework (MOF) composition comprising one or more metal ions, a plurality of organic ligands, and a solvent, wherein the one or more metal ions associate with the plurality of organic ligands sufficient to form a MOF with kag topology. Embodiments of the present disclosure further include a method of making a MOF composition comprising contacting one or more metal ions with a plurality of organic ligands in the presence of a solvent, sufficient to form a MOF with kag topology, wherein the solvent comprises water only. Embodiments of the present disclosure also describe a method of capturing chemical species from a fluid composition comprising contacting a MOF composition with kag topology and pore size of about 3.4 to 4.8 with a fluid composition comprising two or more chemical species and capturing one or more captured chemical species from the fluid composition.

The method for coating a substrate with silver nanoparticles includes reducing a silver nitrate solution with an ethanol extract of the traditional Indian medicinal plant (Curcuma Longa L.), a naturally abundant antioxidant, to form a final solution, and contacting the final solution with the substrate to provide the silver nanoparticle coating. Formation of the silver nanoparticle coating on the substrate can be determined when a mirror in the final solution is observed. The thickness of the coating layer can be less than 125 nm. The coated substrates can be highly conductive.

A method for the preparation of a poly(ether ether ketone) (PEEK) includes: preparing the PEEK by aromatic nucleophilic substitution in the presence of: a) particulate sodium carbonate (Na.sub.2CO.sub.3), wherein said particulate sodium carbonate has a particle size distribution as follows: D.sub.9045 m and D.sub.90250 m and D.sub.99.5710 m, wherein said particle size distribution is measured by mechanical sieving in accordance with ASTM E 359-00 (reapproved 2005), wherein said measurement is based on the mechanical separation of various fractions on a series of superimposed sieves which are superimposed by descending order of opening mesh of 1000 m, 500 m, 250 m, 180 m, 125 m, 90 m, 63 m, and 45 m; and b) potassium carbonate (K.sub.2CO.sub.3) in an amount ranging from 0.001 to about 0.05 mol K/mol Na.

A method for the preparation of a poly(ether ether ketone) (PEEK) includes: preparing the PEEK by aromatic nucleophilic substitution in the presence of: a) particulate sodium carbonate (Na.sub.2CO.sub.3), wherein said particulate sodium carbonate has a particle size distribution as follows: D.sub.9045 m and D.sub.90250 m and D.sub.99.5710 m, wherein said particle size distribution is measured by mechanical sieving in accordance with ASTM E 359-00 (reapproved 2005), wherein said measurement is based on the mechanical separation of various fractions on a series of superimposed sieves which are superimposed by descending order of opening mesh of 1000 m, 500 m, 250 m, 180 m, 125 m, 90 m, 63 m, and 45 m; and b) potassium carbonate (K.sub.2CO.sub.3) in an amount ranging from 0.001 to about 0.05 mol K/mol Na.

The invention relates to a method for producing alcohols by homogeneously catalyzed hydroformylation of olefins to aldehydes and subsequent hydration of the aldehydes. The invention further relates to a system for carrying out the method. The main focus is on the separation technique for work-up of the hydroformylation mixture. The problem addressed by the invention is that specifying a work-up method for hydroformylation mixtures that utilizes the specific advantages of known separation technologies but at the same time largely avoids the specific disadvantages of said separation technologies. The most important objective is to create a catalyst separation system that is as complete and at the same time conservative as possible and that operates in a technically reliable manner and entails low investment and operating costs. The method should be unrestrictedly suitable for processing the reaction output from oxo systems in world scale format. The problem is solved by combining membrane separation units and a thermal separation unit, the thermal separation unit being operated in such a manner that 80% to 98% of the mass introduced with the product stream into the thermal separation unit exits the thermal separation unit again as a head product.

A process for preparing 2,6-dimethyl-5-heptenal, comprising oxidizing citral of which more than 50% are present as geranial with hydrogen peroxide in the presence of a catalyst comprising a Baeyer-Villiger oxidation catalyst, preferably a tin-containing molecular sieve.