The present invention relates to sorbants such as metal-organic frameworks (MOFs), covalent organic frameworks (COFs), porous aromatic frameworks (PAFs) or porous polymer networks (PPNs) for separations of gases or liquids, gas storage, cooling, and heating applications, including, but not limited to, adsorption chillers.

The invention relates to a process for preparing a salt from diamine and dicarboxylic acid, the process comprising contacting a diamine gas, having a gas temperature T-gas, with a dicarboxylic acid, thereby forming a reaction mixture comprising diamine/dicarboxylic acid salt, wherein the dicarboxylic acid and the reaction mixture are kept at a temperature T-mixture of at least 10 C. below the lowest of the melting temperature of the dicarboxylic acid (Tm-acid) and the melting temperature of the resulting diamine/dicarboxylic acid salt (Tm-salt). The invention also relates to a process for preparing a polyamide comprising preparing a salt from diamine and dicarboxylic acid.

The invention relates to a process for preparing a salt from diamine and dicarboxylic acid, the process comprising contacting a diamine gas, having a gas temperature T-gas, with a dicarboxylic acid, thereby forming a reaction mixture comprising diamine/dicarboxylic acid salt, wherein the dicarboxylic acid and the reaction mixture are kept at a temperature T-mixture of at least 10 C. below the lowest of the melting temperature of the dicarboxylic acid (Tm-acid) and the melting temperature of the resulting diamine/dicarboxylic acid salt (Tm-salt). The invention also relates to a process for preparing a polyamide comprising preparing a salt from diamine and dicarboxylic acid.

A composition comprising: a substance (A) comprising at least one metal atom selected from the group consisting of zinc, cobalt, niobium, zirconium, cadmium, copper, nickel, chromium, vanadium, titanium, molybdenum, magnesium, iron and aluminum, with the proviso that a metal organic framework is excluded; an organic substance (B) having at least two metal coordination sites capable of being coordinated to the metal atom to form a crystal, wherein the metal coordination sites are of at least one type selected from the group consisting of a carboxy group and a metal organic framework; and a coordination promoter (C) that undergoes a reaction or a phase transition upon stimulation to promote the coordination of the metal coordination sites of the organic substance (B) to the metal atom of the substance (A).

Processes are disclosed for preparing a diamine/dicarboxylic acid salt, wherein the dicarboxylic acid includes an aromatic dicarboxylic acid and is provided in a powder form. The diamine is provided in a liquid form gradually dosed to the dicarboxylic acid powder, while keeping the dicarboxylic acid powder in constant movement; the processing temperature is above 0 C. and below the boiling temperature of the diamine and the melting temperature of the acid and the salt, and the reaction mixture comprises at most 5 wt. % of water. An anhydrous diamine/dicarboxylic acid salts obtained by the process are also provided.

Processes are disclosed for preparing a diamine/dicarboxylic acid salt, wherein the dicarboxylic acid includes an aromatic dicarboxylic acid and is provided in a powder form. The diamine is provided in a liquid form gradually dosed to the dicarboxylic acid powder, while keeping the dicarboxylic acid powder in constant movement; the processing temperature is above 0 C. and below the boiling temperature of the diamine and the melting temperature of the acid and the salt, and the reaction mixture comprises at most 5 wt. % of water. An anhydrous diamine/dicarboxylic acid salts obtained by the process are also provided.

An organic salt of the present disclosure contains terephthalic acid and at least one kind of primary alkylamine. An alkyl group constituting the primary alkylamine has 6 or more and 17 or less carbon atoms. The organic salt of the present disclosure can be used to detect a hydroxy radical contained in a gas, for example. The present disclosure provides: an organic salt that makes it possible to detect a hydroxy radical more easily as well as to detect a hydroxy radical generated in a living body; and a hydroxy-radical sensor adopting the organic salt.

An organic salt of the present disclosure contains terephthalic acid and at least one kind of primary alkylamine. An alkyl group constituting the primary alkylamine has 6 or more and 17 or less carbon atoms. The organic salt of the present disclosure can be used to detect a hydroxy radical contained in a gas, for example. The present disclosure provides: an organic salt that makes it possible to detect a hydroxy radical more easily as well as to detect a hydroxy radical generated in a living body; and a hydroxy-radical sensor adopting the organic salt.

The present invention relates to a method for the recycling of a textile waste (ST) comprising a cellulosic component and a polyester component, comprising the following steps: a depolymerization step (110), comprising submitting the textile waste (ST) to a depolymerization reaction of the polyester component by basic hydrolysis by means of a solvolytic mixture (MS) comprising an alkali metal hydroxide (IMA) and at least one water-soluble organic reaction solvent (SOIR) until obtaining a biphasic mixture (MB) comprising an initial solid phase (ESI), containing a terephthalic acid salt (SAT) and cellulosic fibres, and an initial liquid phase (ELI), containing the water-soluble organic reaction solvent (SOIR): a first step of solid-liquid separation (210), comprising the removal of at least a part of the initial liquid phase (ELI) from the biphasic mixture (MB); a step of treatment with organic solvent (220), wherein said initial solid phase (ESI), following the first step of solid-liquid separation (210), is treated with an organic washing solvent (SOL) until removing, from the initial solid phase (ESI), one or more possible contaminants present therein and obtaining a solid purified phase (ESP) containing the terephthalic acid salt (SAT) and the cellulosic fibres; a second step of solid-liquid separation (230), wherein the solid purified phase (ESP) is separated from the organic washing solvent (SOL) and from the one or more possible contaminants dissolved therein: a step of treatment with water (240)), comprising bringing the solid purified phase (ESP) into contact with washing water (AL) until solubilizing the terephthalic acid salt (SAT) contained therein and obtaining, by the removal of the later, a final solid phase (FSF) comprising said cellulosic fibres.

The present invention relates to a method for the recycling of a textile waste (ST) comprising a cellulosic component and a polyester component, comprising the following steps: a depolymerization step (110), comprising submitting the textile waste (ST) to a depolymerization reaction of the polyester component by basic hydrolysis by means of a solvolytic mixture (MS) comprising an alkali metal hydroxide (IMA) and at least one water-soluble organic reaction solvent (SOIR) until obtaining a biphasic mixture (MB) comprising an initial solid phase (ESI), containing a terephthalic acid salt (SAT) and cellulosic fibres, and an initial liquid phase (ELI), containing the water-soluble organic reaction solvent (SOIR): a first step of solid-liquid separation (210), comprising the removal of at least a part of the initial liquid phase (ELI) from the biphasic mixture (MB); a step of treatment with organic solvent (220), wherein said initial solid phase (ESI), following the first step of solid-liquid separation (210), is treated with an organic washing solvent (SOL) until removing, from the initial solid phase (ESI), one or more possible contaminants present therein and obtaining a solid purified phase (ESP) containing the terephthalic acid salt (SAT) and the cellulosic fibres; a second step of solid-liquid separation (230), wherein the solid purified phase (ESP) is separated from the organic washing solvent (SOL) and from the one or more possible contaminants dissolved therein: a step of treatment with water (240)), comprising bringing the solid purified phase (ESP) into contact with washing water (AL) until solubilizing the terephthalic acid salt (SAT) contained therein and obtaining, by the removal of the later, a final solid phase (FSF) comprising said cellulosic fibres.