Esta es nuestra última selección de publicaciones y patentes mundiales en inglés sobre Zeolitas, entre muchas revistas científicas en línea, clasificadas y centradas en zeolita, aluminosilicato microporoso, relación Si/Al, tamiz molecular, sitio abierto de metal, capacidad de intercambio catiónico, aluminosilicato, Zeolita A (LTA), ZSM-5, Faujasita, Clinoptilolita, sustitución isomorfa y facies de zeolita.
Light olefin and method for preparing low-carbon carboxylic acid by alcohol carbonylation of light olefin
Patent published on the 2026-05-21 in WO under Ref WO2026102605 by DALIAN INST CHEM & PHYSICS CAS [CN] (Ni Youming [cn], Qi Liang [cn], Sheng Yingying [cn], Zhu Wenliang [cn], Liu Zhongmin [cn], Liu Hongchao [cn], Chen Zhiyang [cn], Fang Xudong [cn])
Abstract: The present application relates to the field of catalytic chemistry, and discloses light olefin and a method for preparing a low-carbon carboxylic acid by alcohol carbonylation of light olefin. The method comprises: enabling starting materials including light olefin, an alcohol thereof and carbon monoxide to react in a reactor loaded with an acidic molecular sieve catalyst, so as to obtain a product containing a low-carbon carboxylic acid, wherein the light olefin and the alcohol thereof are at [...]
Our summary: The method utilizes light olefin and alcohol for carbonylation to produce low-carbon carboxylic acid. An acidic molecular sieve catalyst is employed, eliminating the need for noble metals. This process minimizes waste emissions and is suitable for large-scale production.
catalytic chemistry, light olefin, carbonylation, low-carbon carboxylic acid
Patent
Protective sulfur removal system for enhanced methane slip catalysts in sulfur-containing exhaust
Patent published on the 2026-05-21 in US under Ref US20260138084 by CDTI ADVANCED MAT INC [US] (Michl Jason C [us], Hermann Blake [us], Lee Edward J [us], Mcconnell Campbell [us], Liu Ru-fen [us])
Abstract: [0000] A sulfur trap system is provided for protecting methane oxidation catalysts (MOC) from sulfur poisoning in sulfur-containing exhaust. The trap is positioned upstream of the MOC and includes a washcoat comprising zeolite, cerium-based oxygen-storage material, and alumina, and an overcoat containing copper, manganese, and cerium oxides. The mixed metal oxide and support formulation delivers high sulfur adsorption at engine exhaust temperatures, reducing sulfur to safe levels and extending t[...]
Our summary: A sulfur trap system protects methane oxidation catalysts from sulfur poisoning. It includes a washcoat with zeolite and cerium-based materials, and an overcoat with mixed metal oxides. This system enhances sulfur adsorption, prolongs catalyst life, and improves methane conversion efficiency.
sulfur removal, methane oxidation catalysts, zeolite, exhaust treatment
Patent
One-sack geopolymer compositions
Patent published on the 2026-05-14 in AU under Ref AU2024373058 by SCHLUMBERGER TECH B V (Pernites Roderick, Yakovlev Andrey)
Abstract: Alkali activated precursor compositions are presented that are useful for cementing a subterranean well, among other uses. The precursor compositions are dry mixtures that have an aluminosilicate source and an activator consisting of a metal carbonate, metal silicate, or combination thereof. A precursor is formed by adding water to the dry precursor compositions. Such precursors have suitable characteristics for use in cementing applications that use pumpable mixtures.[...]
Our summary: One-sack geopolymer compositions are alkali activated precursor compositions for cementing subterranean wells. These dry mixtures contain an aluminosilicate source and a metal carbonate or silicate activator. Water is added to form precursors suitable for pumpable cementing applications.
geopolymer, alkali activation, cementing, aluminosilicate
Patent
Catalyst for accelerated establishment of the temperature-dependent equilibrium of ortho-para hydrogen mixtures
Patent published on the 2026-05-14 in AU under Ref AU2024377969 by C&CS CATALYSTS AND CHEMICAL SPECIALTIES GMBH (Eberle Hans-jÜrgen, Tissler Arno)
Abstract: The invention provides a highly active iron-containing zeolite catalyst (advantageously for accelerated establishment of the temperature-dependent ortho/para equilibrium of hydrogen). The present invention additionally relates to methods of transforming ortho-hydrogen to para-hydrogen, wherein an iron-containing zeolite as described herein is used as catalyst, and to the use of an iron-containing zeolite catalyst in the production of liquid hydrogen and to the storage and/or transport thereof.[...]
Our summary: The invention introduces an iron-containing zeolite catalyst for accelerating the ortho-para hydrogen equilibrium. It details methods for converting ortho-hydrogen to para-hydrogen using this catalyst. Additionally, it covers applications in liquid hydrogen production and its storage or transport.
Iron-containing zeolite, Ortho-para hydrogen, Catalyst, Hydrogen production
Patent
Electromechanical machine for transforming animal skin into leather
Patent published on the 2026-05-14 in AU under Ref AU2024355492 by CASTRO HERVAS MAURICIO A (Do Rego Fernandez JosÉ Luis)
Abstract: The present invention relates to an electromechanical machine for transforming animal skin into leather that consists of a machine intended to be involved in one or more steps of the transformation process for transforming any animal skin into leather. The machine is characterised in that it comprises a main tank, where the skins are submerged in a liquid with one or more additives, which is referred to as syrup, an impeller-suction motor pump, which circulates the syrup through an outlet pipe, [...]
Our summary: The invention describes an electromechanical machine designed for transforming animal skin into leather. It features a main tank for submerging skins in a syrup with additives, and an impeller-suction motor pump for circulating the syrup through various filtration systems. The machine includes a programmable central computer for controlling the process based on specific skin characteristics.
Electromechanical, Leather Processing, Syrup Circulation, Programmable Control
Patent
A catalyst for the production of acetic acid and methyl acetate from co2 and ch4 based on zeolites with controlled distribution of aluminum atoms
Patent published on the 2026-05-13 in EP under Ref EP4741054 by CZECH ACAD OF SCIENCES [CZ] (Tarach Karolina [pl], GÓra-marek Kinga [pl], Sobalska Julia [pl], Tabor Edyta [cz], Dedecek Jiri [cz], Mlekodaj Kinga [cz], KauckÝ Dalibor [cz])
Abstract: [0001] A catalyst based on zeolite with a controlled distribution of aluminium atoms in the zeolite structure and with a specific location of divalent transition metal cations, such as iron and zinc cations, in the zeolite and a method for producing acetic acid and methyl acetate from carbon dioxide and methane using such a catalyst are disclosed. The structure of the zeolite is selected from CHA, FER, MOR and *BEA.[...]
Our summary: A zeolite-based catalyst with controlled aluminum distribution and specific divalent metal cations is developed. This catalyst facilitates the production of acetic acid and methyl acetate from CO2 and CH4. The zeolite structures utilized include CHA, FER, MOR, and *BEA.
catalyst, zeolite, acetic acid, carbon dioxide
Patent
A Viable Supplementary Pathway Toward Low-Carbon Concrete Production
Published on 2026-01-30 by Tu?ba zdemir Mazlum, Nihat Atmaca @MDPI
Abstract: Amid growing environmental concerns, resource depletion, and the pressing challenges of industrial waste management, this study investigates the potential of magnesium slag (MS) as a sustainable alternative binder in the production of one-part geopolymer concretes (OPGCs). The objective is to reduce reliance on conventional cementitious materials while promoting the valorization of industrial by-products in construction practices. For this purpose, ten different mixtures were designed by replaci[...]
Our summary: This study explores magnesium slag as a sustainable binder alternative for one-part geopolymer concretes. Ten mixtures were tested, replacing conventional materials with varying levels of magnesium slag. Results indicate that up to 30% replacement maintains acceptable mechanical performance, promoting sustainable construction practices.
magnesium slag, low-carbon concrete, geopolymer, industrial by-products
Publication
Mechanical and Microstructural Properties
Published on 2026-01-29 by Yu Yin, Shijiao Yang, Yan He, Rong Yang, Qian Kang @MDPI
Abstract: Cemented tailings backfill (CTB) is widely used in mining operations due to its operational simplicity, reliable performance, and environmental benefits. However, the poor consolidation of fine tailings with ordinary Portland cement (OPC) remains a critical challenge, leading to excessive backfill costs. This study addresses the utilization of modified manganese slag (MMS) as a supplementary cementitious material (SCM) for fine tailings from an iron mine in Anhui, China. Sodium silicate (Na2SiO3[...]
Our summary: This study investigates the use of modified manganese slag as a supplementary cementitious material for fine tailings in cemented tailings backfill. Sodium silicate modification enhances the pozzolanic reactivity of manganese slag, leading to improved mechanical properties. Characterization techniques reveal significant microstructural changes, contributing to better flowability and strength of the composite slurry.
Cemented tailings backfill, Manganese slag, Pozzolanic reactivity, Microstructural analysis
Publication