UNIVERSIDAD DEL VALLE Patent applications |
Patent application number | Title | Published |
20140166220 | METHOD TO PRODUCE HIGH-RESISTANCE CELLULOSE AND HEMICELLULOSE FIBERS FROM LIGNOCELLULOSIC BIOMASS OF SUGARCANE LEAVES AND BUDS - Method for production of cellulose and hemicellulose fibers from lignocellulose biomass obtained from sugarcane leaves and buds by applying a process comprising the stages of: a) Diminishing the particle size of the lignocellulose biomass to a range between 3 and 15 mm, b) Subjecting the product obtained to treatment with one or more solvents and/or a mixture of specific catalysts, c) Carry out sudden decompression to an atmospheric pressure, d) Collecting the pretreated material in a cyclone, e) Optionally separating the liquid and solid fractions through washing and filterung f) Optionally, treating the solid fraction in a reactor with a mixture of ethanol and chlorine dioxide, d) Wash the product obtained to achieve cellulose efficiency above 50% and of lignin of 5 to 7%, fiber lengtht in a range to 1.5 to 2.7 mm, breaking length (km) of 7.0 -8.9, Burst index (kPam | 06-19-2014 |
20140114310 | EXTERNAL FIXATION DEVICE ADAPTABLE FOR BONE FRACTURES - The current request reports an external fixation device to stabilize bone fractures with adaptable configuration during different stages of surgery or during treatment, through the generation of six degrees of freedom among the bone fragments. The device comprises numerous press-connector means, numerous cylindrical bars, numerous osteosynthesis screws and optionally from one to several rigid rings and one or more extension elements that permit generating diverse stable configurations to treat bone fractures. | 04-24-2014 |
20130224279 | PROCESS FOR THE PREPARATION OF CALCIUM SALT SUSPENSIONS - The current invention is related to a novel process for the production of aqueous suspensions of micro and nanoparticles of calcium salts smaller than 10 μm particle size, along with a method to enrich nutritional, nutraceutical, and pharmaceutical beverages with calcium salts. In the process, an aqueous suspension of calcium salt is subjected to pressurization with critical, subcritical, or supercritical carbon dioxide to increase the solubility of the calcium salt, which has a particle size greater than 30 μm. The resulting solution is expanded through a nozzle to generate a calcium salt suspension of micro and nanoparticles that is imperceptible to sight and taste. | 08-29-2013 |
20120223024 | PHOTO-CATALYSIS PROCESS APPLIED IN ELIMINATING RECALCITRANT COMPOUNDS IN INDUSTRIAL RESIDUAL WATERS - The present invention relates to the application of a heterogeneous photocatalysis process for the treatment of industrial wastewater contaminated with recalcitrant compounds and the operating conditions of a pilot plant for implementing said process. | 09-06-2012 |
20110299563 | DEVICE FOR DETERMINING THERMAL CONDUCTIVITY AND METHODS FOR THE USE THEREOF - The application relates to a device based on the electrothermal method for determining thermal conductivity, which allows the examiniation of various phenomena, with a high level of reliability, through the study of the thermal behaviour of materials. The device is constitated by a sample-carrying cylinder surrounded by a resistance element that creates a radial heat flow in the sample, a cooling system based on a spiral-form heat exchanger incorporated into the thermal device, means for the storage of a fluid and a data-storage device. Furthermore, the present application describes the use of the device in processes for determining the productive potential of the soil (“PPS”) and the examination of the nutritional quality of agro-ecological produce and foods. | 12-08-2011 |
20110272347 | HIGH-RATE ANAEROBIC POOL BIOREACTOR - The present application related to a high-rate anaerobic pool bioreactor (“BLAAT”) as an improved processing unit for treating biodegradable wastewater, which allows the conversion of a low-performance rate traditional system, such as the anaerobic pool, into an efficient, compact system that enables clean energy to be recovered in the from of biogas. The application also describes a process for the anaerobic treatment of wastewater that uses said bioreactor, which optimizes the processes of mixing and contact between the biomass and the substrate and presents a novel process for separating out the biomass by means of improved sedimentation in horizontal laminar flow. | 11-10-2011 |
20110237857 | PROCESS FOR THE DESTRUCTION OF TOXIC RESIDUES VIA OXIDATION IN PRESENCE OF WATER AND OXYGEN AND CONTINUOUS MOBILE UNIT TO TREAT HAZARDOUS COMPOUNDS - Process for the destruction of toxic residues via oxidation in the presence of water and oxygen developed in homogenous phase at temperatures over 374° C. and pressure of at least 220 atmospheres and a continuous mobile unit easily transferred to treat effluents or contaminated media. This mobile unit is composed of a reactor, which includes pressurization, reaction, cooling, depressurization and sampling zones for the destruction of toxic residues like polychloride biphenyls (PCBs), pyridines, and other hazardous compounds. | 09-29-2011 |
20110233070 | PROCESS TO REDUCE THE CHEMICAL OXYGEN DEMAND, TOTAL ORGANIC CARBON, AND TOTAL SOLIDS IN VINASSE BY ELECTRO-FLOTATION/OXIDATION - The invention relates to a novel process for reducing the chemical oxygen demand (COD), total organic carbon (TOC) and total solids of non-contaminating residues from ethanol distilleries, by means of electro-flotation/oxidation techniques using an electrolytic cell outfitted with galvanized steel electrodes as a function of the initial pH of the medium, the current density and the concentration of H | 09-29-2011 |