Location Matters: a Novel Methodology for Patent’s National Phase Process

Ethylene glycol and propylene glycol are important representatives of polyols. On an industrial scale, they are obtained from petrochemical raw materials. Within a decade, significant efforts were made for the producing of polyols from biologically renewable raw materials - carbohydrates. The general trend for carbohydrate hydrogenolysis includes application of liquid-phase process with the use of modified metal-oxide catalysts, at 120-120 ° C and pressure of 3MPa or above. So high pressure is used for the reason to increase hydrogen solubility, and also due to the high partial pressure of low boiling solvents. We supposed that usage of high boiling solvents could allow hydrogenolysis to be performed at the lower pressure. Ethylene glycol and propylene glycol are of particular interest as such kind of solvent since they are both the main products of glucose hydrogenolysis. In this work, the process of hydrogenolysis of glucose and fructose over Cu / MgO-ZrO2 catalyst have been studied at temperature range of 160-200 °C and a pressure of 0.1-0.3 MPa in a flow reactor. The solvents were simultaneously the target products of the reaction - ethylene glycol and / or propylene glycol. Gas chromatography and 13C NMR were used for the reaction products identification. It was found that the solubility of glucose in propylene glycol is 21 % by weight, and in ethylene glycol 62% by weight. It was pointed out that the process of hydrogenolysis can take place at a pressure close to atmospheric. Under these conditions, the conversion of hexoses reaches 96-100 %. The reaction products are preferably propylene glycol and ethylene glycol. The total selectivity for C3-2 polyols is 90-94 %, that is higher than in the hydrogenolysis of glucose in aqueous solution.

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Glycolysis of Polyurethanes Composites Containing Nanosilica

Polymers ◽

10.3390/polym13091418 ◽

2021 ◽

Vol 13 (9) ◽

pp. 1418

Author(s):

Jesus del Amo ◽

Ana Maria Borreguero ◽

Maria Jesus Ramos ◽

Juan Francisco Rodríguez

Keyword(s):

Diethylene Glycol ◽

Vacuum Distillation ◽

Crude Glycerol ◽

Single Phase ◽

Chemical Recycling ◽

Foam Properties ◽

Polyurethane Composites ◽

Pu Foams ◽

Phase Process

Rigid polyurethane (RPU) foams have been successfully glycolyzed by using diethylene glycol (DEG) and crude glycerol (CG) as transesterification agents. However, DEG did not allow to achieve a split-phase process, obtaining a product with low polyol purity (61.7 wt %). On contrary, CG allowed to achieve a split-phase glycolysis improving the recovered polyol purity (76.5%). This is an important novelty since, up to now, RPUs were glycolyzed in single-phase processes giving products of low polyol concentration, which reduced the further applications. Moreover, the nanosilica used as filler of the glycolyzed foams was recovered completely pure. The recovered polyol successfully replaced up to 60% of the raw polyol in the synthesis of RPU foams and including the recovered nanosilica in the same concentration than in glycolyzed foam. Thus, the feasibility of the chemical recycling of this type of polyurethane composites has been demonstrated. Additionally, PU foams were synthesized employing fresh nanosilica to evaluate whether the recovered nanosilica has any influence on the RPU foam properties. These foams were characterized structurally, mechanically and thermally with the aim of proving that they met the specifications of commercial foams. Finally, the feasibility of recovering the of CG by vacuum distillation has been demonstrated.

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High-efficiency catalytic performance over mesoporous Ni/beta zeolite for the synthesis of quinoline from glycerol and aniline

RSC Advances ◽

10.1039/c6ra26736j ◽

2017 ◽

Vol 7 (16) ◽

pp. 9551-9561 ◽

Cited By ~ 15

Author(s):

An Li ◽

Chen Huang ◽

Cai-Wu Luo ◽

Wen-Jun Yi ◽

Zi-Sheng Chao

Keyword(s):

Catalytic Activity ◽

Vapor Phase ◽

High Efficiency ◽

Zeolite Catalyst ◽

Catalytic Performance ◽

Beta Zeolite ◽

Phase Process

Quinoline was synthesized via the typical Skraup approach with a vapor-phase process. The mesoporous Ni/beta zeolite catalyst exhibited high-efficiency catalytic activity and an enhanced ability of anti-deactivation.

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Generic application of an aqueous two-phase process for protein recovery from animal blood

Process Biochemistry ◽

10.1016/s0032-9592(99)00119-3 ◽

2000 ◽

Vol 35 (7) ◽

pp. 665-673 ◽

Cited By ~ 27

Author(s):

Marco Rito-Palomares ◽

Christopher Dale ◽

Andrew Lyddiatt

Keyword(s):

Protein Recovery ◽

Two Phase ◽

Animal Blood ◽

Phase Process

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Determination of parameters of a heterogeneous liquid-phase process in a plug-flow reactor

Chemical and Petroleum Engineering ◽

10.1007/s10556-006-0107-0 ◽

2006 ◽

Vol 42 (7-8) ◽

pp. 357-360

Author(s):

A. V. Zheranin ◽

A. G. Ovcharenko

Keyword(s):

Liquid Phase ◽

Flow Reactor ◽

Plug Flow ◽

Plug Flow Reactor ◽

Determination Of Parameters ◽

Phase Process

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Queueing system with a phase process of query arrival in session

Automatic Control and Computer Sciences ◽

10.3103/s0146411609030018 ◽

2009 ◽

Vol 43 (3) ◽

pp. 113-122

Author(s):

S. A. Dudin ◽

V. I. Klimenok

Keyword(s):

Queueing System ◽

Phase Process

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FORMULATION AND EVALUATION OF ORMELOXIFENE FAST DISSOLVING TABLETS

Asian Journal of Pharmaceutical Research and Development ◽

10.22270/ajprd.v6i3.373 ◽

2018 ◽

Vol 6 (3) ◽

pp. 17-31

Author(s):

Abdul Hasan Sathali ◽

Ramanathan M

Keyword(s):

Solid Dispersion ◽

Research Work ◽

Solvent Evaporation ◽

Water Soluble ◽

Two Phase ◽

Evaporation Technique ◽

Co Precipitation ◽

Phase Process

The objective of the present work was to enhancedissolution and solubility of slightly water soluble ormeloxifene hydrochloride and formulate fast dissolving tablets. The research work was two-phase process, the first phase was to enhance the solubility and dissolution of ormeloxifene. For this object drugwas processed with different solid dispersion techniques like kneading, co precipitation, melting and solvent evaporation technique with

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Control integral del PRRSv mediante el concepto de las 5 fases: revisión crítica

Anales de Veterinaria de Murcia ◽

10.6018/analesvet.466321 ◽

2021 ◽

Vol 35 ◽

Author(s):

Ruben Sala Echave ◽

Rebeca López-Úbeda ◽

Guillermo Ramis ◽

Iván Hernández Caravaca

Keyword(s):

Respiratory Disease ◽

Semen Quality ◽

Viral Disease ◽

Porcine Respiratory ◽

Phase Process

El Síndrome Reproductivo y Respiratorio Porcino (PRRSV) es una enfermedad viral que causa importantes pérdidas económicas y productivas, afectando la reproducción en cerdas gestantes, la calidad del semen en verracos y, ocasionando enfermedad respiratoria en lechones en transición y cebo, reduciendo el crecimiento de los cerdos y provocando un aumento de la mortalidad. Este síndrome cuenta con diversas cepas patógenas, muchas de ellas no incluidas en las actuales vacunas. En consecuencia, los cerdos nunca estarán completamente protegidos frente a esta enfermedad, debido a la capacidad permanente de recombinación y mutación propia del virus. El proceso de las 5 fases surge fruto de la experiencia y la búsqueda de desarrollar metodologías que unifiquen criterios y herramientas de diagnóstico, prevención y bioseguridad para el control de esta enfermedad. En conclusión, la plataforma de las 5 fases hace posible el abordaje en conjunto de la enfermedad, sirviendo como herramienta integral de utilidad para el control exitoso de esta enfermedad. Porcine Respiratory and Reproductive Syndrome is a viral disease, which causes important economic and productive losses, affecting reproduction in pregnant sows, semen quality in boars and, causing respiratory disease in growing and fattening piglets, reducing pig growth and causing increased mortality. This syndrome is caused by several pathogenic strains, many of which are not included in current vaccines. Consequently, pigs will never be completely protected against this disease, due to the permanent recombination and mutation capacity of the virus. The five-phase process is the result of experience and the search to develop methodologies that unify criteria and tools for diagnosis, prevention and biosecurity for the control of this disease. In conclusion, the 5-phases platform makes it possible to approach the disease as a whole, providing it as an integral tool for success on this disease.

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