Patents by Inventor Zuolin Zhu
Zuolin Zhu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230357125Abstract: Disclosed is a process for the catalytic reduction of nitro compounds to their corresponding amine products with bisulfite as the reductant or chemicals that can be converted into bisulfite under reaction condition. This novel process uses non-Noble metal catalysts and affords quantitative conversion for numerous different kinds of nitro compounds under mild reaction conditions.Type: ApplicationFiled: May 6, 2022Publication date: November 9, 2023Inventor: Zuolin Zhu
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Patent number: 9617487Abstract: A process for converting organic MSW into liquid fuels or chemical products in almost quantitative yield via catalytic one-pot hydrolytic depolymerization of organic MSW. The organic MSW comprises all organic materials that exists in municipal solid waste, such as paper and paperboard, food scraps, yard trimmings, rubber, leather, textiles, wood, plastics, etc. The process is the first one over the world for resourcing municipal solid waste.Type: GrantFiled: September 22, 2014Date of Patent: April 11, 2017Inventors: Zuolin Zhu, Jonathan Zhu
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Patent number: 9517435Abstract: The present invention discloses a formaldehyde absorbent and a method for using the same, the chemical composition of the formaldehyde absorbent by weight percentage is, amino acid: 0.1-99.9%; DNA and RNA base 99.9-0.1%. The method comprises the following steps: a. dissolving the formaldehyde absorbent in solvent to form a solution or dissolving the formaldehyde absorbent in solvent and mixing the same onto a solid carrier; b. placing the solution or solid carrier in indoor space that contains formaldehyde; and c. contacting and reacting the formaldehyde-containing air with the solution or the solid carrier and then absorbing the same. The present invention not only achieves not only excellent performance in absorbing hazard gases in the air, but also features low-cost, and further causes no secondary pollution, which therefore creates great social and economical significance in improving quality of human life, safeguarding human health, and protecting environment.Type: GrantFiled: September 29, 2013Date of Patent: December 13, 2016Assignee: NINGBO YUCHEN ENVIROCLEAN TECH CO., LTD.Inventors: Zuolin Zhu, JiaBao Zhao, Meng Sun, Zhenji Zhu, Kangfu Gu, Shanqing Sun, Tongxing Xie, Wenhai Wang
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Publication number: 20160213003Abstract: The present invention relates to an application of polyoxometalates with good water solubility in the preparation of disinfectant for sterilizing or removing formaldehyde. The present invention provides a sterilizing and disinfecting system utilizing oxygen in the air as an oxidizing agent, killing microorganisms via catalysis and oxidation, and particularly suitable for an air purification system. If the air is constantly introduced in, the disinfectant of the present invention can be used for a long time, without need of anti-viral drugs or peroxides having potential safety hazard, and without use of irritant substances containing halogen and alcohol having explosive hazard. Without using precious metals, the disinfectant system is easy to prepare and has low cost, dose not cause secondary pollution, and has a good application prospect.Type: ApplicationFiled: May 22, 2014Publication date: July 28, 2016Inventors: ZUOLIN ZHU, MENG SUN, ZHENJI ZHU, KANGFU GU, SHANQING SUN, TONGXING XIE, JIABAO ZHAO, WENHAI WANG
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Publication number: 20160198705Abstract: The present invention relates to an application of bisphenol salts in preparing a disinfectant used for sterilization or formaldehyde removal. The present invention provides a sterilization and disinfection system that uses oxygen in the air as oxidizer, kills microorganisms via catalyzed oxidation, and is particularly suitable in an air purification system. The disinfectant of the present invention can be used for an extended period of time insofar that air is continuously introduced, obviates the need for an anti-viral agent, also obviates the need for a peroxide that is potentially hazardous to safety, uses no halogen-containing irritating substance, and use no alcohol having risk of explosion. This disinfectant system that uses no precious metal is easy to prepare, low in use cost, and free of secondary pollution, and provides a good application prospect.Type: ApplicationFiled: May 22, 2014Publication date: July 14, 2016Inventors: ZUOLIN ZHU, MENG SUN, ZHENJI ZHU, KANGFU GU, SHANQING SUN, TONGXING XIE, JIABAO ZHAO, WENHAI WANG
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Publication number: 20160083326Abstract: A process for converting lignocelluloses selectively into liquid fuels and fine chemicals uses one step of reaction and one step of isolation and separation. The process has the fewest steps of operation for converting biomass into products compared with all known biorefining processes.Type: ApplicationFiled: September 22, 2014Publication date: March 24, 2016Inventors: Zuolin Zhu, Jonathan Zhu
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Publication number: 20160083663Abstract: A process for converting organic MSW into liquid fuels or chemical products in almost quantitative yield via catalytic one-pot hydrolytic depolymerization of organic MSW. The organic MSW comprises all organic materials that exists in municipal solid waste, such as paper and paperboard, food scraps, yard trimmings, rubber, leather, textiles, wood, plastics, etc. The process is the first one over the world for resourcing municipal solid waste.Type: ApplicationFiled: September 22, 2014Publication date: March 24, 2016Inventors: Zuolin Zhu, Jonathan Zhu
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Patent number: 9181166Abstract: Lignocelluloses are selectively hydrolyzed into only two kinds of products in an one-pot, quantitative reaction. Lignin is reduced into small molecular aromatics without using reductants. Simultaneously, cellulose and hemicellulose are oxidized into small organic acids without using oxidants. A catalytic method is invented for oxygen-transfer from lignin to cellulose or hemicellulose. There is neither gasification nor black tar formation observed during the hydrolytic depolymerization.Type: GrantFiled: September 22, 2014Date of Patent: November 10, 2015Inventors: Zuolin Zhu, Jonathan Zhu Zhu
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Publication number: 20150086458Abstract: The present invention discloses a formaldehyde absorbent and a method for using the same, the chemical composition of the formaldehyde absorbent by weight percentage is, amino acid: 0.1-99.9%; DNA and RNA base 99.9-0.1%. The method comprises the following steps: a. dissolving the formaldehyde absorbent in solvent to form a solution or dissolving the formaldehyde absorbent in solvent and mixing the same onto a solid carrier; b. placing the solution or solid carrier in indoor space that contains formaldehyde; and c. contacting and reacting the formaldehyde-containing air with the solution or the solid carrier and then absorbing the same. The present invention not only achieves not only excellent performance in absorbing hazard gases in the air, but also features low-cost, and further causes no secondary pollution, which therefore creates great social and economical significance in improving quality of human life, safeguarding human health, and protecting environment.Type: ApplicationFiled: September 29, 2013Publication date: March 26, 2015Applicant: NINGBO YUCHEN ENVIROCLEAN TECH CO., LTD.Inventors: Zuolin Zhu, JiaBao Zhao, Meng Sun, Zhenji Zhu, Kangfu Gu, Shanqing Sun, Tongxing Xie, Wenhai Wang
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Patent number: 8859795Abstract: The invention discloses a technology for producing ester of carboxylic acid using cellulosic biomass as starting material. This technology comprises the following key steps: converting all of the organic polymers, including such high molecular-weight polymers as carbohydrate components and lignin, in cellulosic biomass into water soluble, small molecular organics completely in relatively short time under relatively mild conditions; separating the resultant water soluble compounds containing aromatic rings by adjusting the acidity/basicity of the reaction solution or by using adsorption resin; and converting the water soluble compounds containing aromatic rings into ester of carboxylic acid by hydrogenation and esterification in a corresponding alcohol solution.Type: GrantFiled: September 22, 2009Date of Patent: October 14, 2014Assignee: Sun Pharmaceuticals, Inc.Inventors: Zuolin Zhu, Meg M. Sun, Chungao Su, Hongping Ye
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Patent number: 8759596Abstract: A liquid fuel production process from Cellulosic biomass and coal comprises providing a mixture of Cellulosic biomass and coal, subjecting the mixture to gasification to obtain synthesis gas and converting the synthesis gas to a liquid fuel under the presence of catalyst. The catalyst includes molybdenum sulfide, alkali metal compound and a component activating the C—H bond in alkanes product, wherein the alkali metal compound is selected from the group of salts of Li, Na, K, Rb and Cs, the component activating the C—H bond in alkanes product is selected from Mo, V, Os, Re, Ir, Pt, Pd, Co, Rh, Ni and their mixture. Additionally, co-gasification of Cellulosic biomass and coal can reduce the ash fusion temperature of coal.Type: GrantFiled: April 6, 2007Date of Patent: June 24, 2014Assignee: China Fuel (Huaibei) Bioenergy Technology Development Co., LtdInventors: Hongping Yie, Meg M. Sun, Zuolin Zhu
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Patent number: 8618341Abstract: A liquid fuel production process from cellulosic biomass comprises the following steps: (1) providing a mixture of cellulose and water; (2) subjecting the obtained mixture to hydrolysis and catalytic hydrogenation under the presence of acid to obtain mono-sugar alcohol and optional solid material lignin, or subjecting the obtained mixture to hydrolysis to obtain monosaccharide; (3) esterifying the obtained mono-sugar with C2-C5 organic acid to obtain a liquid fuel II, or subjecting the obtained mono-sugar alcohol or monosaccharide to dehydration/hydrogenation to obtain an organic liquid fuel I consisting of alkanes. This process avoids the loss of organic carbon atoms during fermentation, and the sugar derived from cellulosic biomass can be converted to organic carbon in the liquid fuel. The lignin produced by the process can be used for preparing aromatics.Type: GrantFiled: August 3, 2009Date of Patent: December 31, 2013Assignee: China Fuel (Huaibei) Bioenergy Technology Development Co. LtdInventors: Hongping Yie, Meg M. Sun, Zuolin Zhu
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Publication number: 20130123547Abstract: A method of refining cellulosic biomass, including synchronous hydrolyzation of at least 85 wt % organic polymers, based on the total weight of the cellulosic biomass, in the cellulosic biomass into small molecular organic compounds. The synchronous hydrolyzation is catalytic hydrolyzation for which the catalyst used is a substance represented by L-M-S-H or L-M=S, wherein “M” represents metal, carbon or silicon, “S” represents a heteroatom, “L” represents one or more ligands, and “H” represents hydrogen.Type: ApplicationFiled: September 24, 2012Publication date: May 16, 2013Inventors: Zuolin Zhu, Meg M. Sun, Chungao Su, Hongping Ye
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Publication number: 20130092602Abstract: A continuous reaction system is provided, which specifically relates to a continuous reaction system comprising subcritical and/or supercritical liquid as solvents and a reactant as solid. The invention can effectively prevent cavitations in the reaction system effectively, and realize maximum conversion of the solid reactant material.Type: ApplicationFiled: September 24, 2012Publication date: April 18, 2013Inventors: Zuolin Zhu, Meg M. Sun, Chungao Su, Kangfu Gu, Hongmei Zhao, Xuemei Ma, Weiguo Yu, Daochuang Liu, Zuodong Zhu, Hongping Ye
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Patent number: 8372608Abstract: The invention provides novel processes for making ethyl-4-cyano-3-hydroxybutyrate, e.g., (R)-ethyl 4-cyano-3-hydroxybutyric acid, and 4-cyano-3-hydroxybutyric acid. The invention provides protocols for making and 4-cyano-3-hydroxybutyric acid and ethyl-4-cyano-3-hydroxybutyrate by whole cell processes, cell lysate processes, “one pot processes” and “multi-pot” processes using a variety of parameters.Type: GrantFiled: March 22, 2011Date of Patent: February 12, 2013Assignee: Verenium CorporationInventors: Mark J. Burk, Grace DeSantis, Brian Morgan, Zuolin Zhu
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Patent number: 8329710Abstract: This disclosure is directed to compound having the formula (A) and a method of treatment using the compound. Compared with metformin, the disclosed compound has the same clinic curative effect, such as lowering blood sugar, curing poly-cystic ovary syndrome (PCOS), losing weight and so on, without resulting in the increase of homocysteine concentration, even with a little decrease of homocysteine concentration in some cases.Type: GrantFiled: May 11, 2007Date of Patent: December 11, 2012Assignee: Sino-Us Pficker Pharmaceuticals Co.Inventors: Hongping Yie, Meg M. Sun, Zuolin Zhu
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Publication number: 20120245367Abstract: The invention discloses a technology for producing ester of carboxylic acid using cellulosic biomass as starting material. This technology comprises the following key steps: converting all of the organic polymers, including such high molecular-weight polymers as carbohydrate components and lignin, in cellulosic biomass into water soluble, small molecular organics completely in relatively short time under relatively mild conditions; separating the resultant water soluble compounds containing aromatic rings by adjusting the acidity/basicity of the reaction solution or by using adsorption resin; and converting the water soluble compounds containing aromatic rings into ester of carboxylic acid by hydrogenation and esterification in a corresponding alcohol solution.Type: ApplicationFiled: September 22, 2009Publication date: September 27, 2012Applicants: China Fuel (Huaibei) Bioenergy Technology Development Co., Ltd., SUN PHARMACEUTICALS, INC.Inventors: Zuolin Zhu, Meg M. Sun, Chungao Su, Hongping Ye
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Patent number: 8124139Abstract: The present invention discloses a compound preparation for quickly reducing oxidative stress, which contains small molecules and mineral trace elements that can remove or help removing free radicals, can regulate the function of endocrine and circulatory digestive system, as well as other components that can rebuild inner harmony. The compound preparation is in solid dosage form, preferably effervescent tablet or effervescent granules. The preparative method of the compound preparation is also disclosed. Animal experiment and clinical trial show that the invention has strong effect in reducing oxidative stress and disease prevention.Type: GrantFiled: April 23, 2007Date of Patent: February 28, 2012Assignee: Sino-US Pficker Pharmaceuticals Co., Ltd.Inventors: Hongping Yie, Meg M. Sun, Zuolin Zhu, Wei Sun, Zhongquan Zhao, Jinyuan Wang, Feng Zheng
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Publication number: 20110223643Abstract: A bionic catalyst for hydrolyzing cellulose and hemicellulose and its preparation method. The catalyst comprises double acid radical catalytic portions and cellulose-linking portions, and can be used under room temperature and high temperature. The catalyst can hydrolyze cellulose and hemicellulose simultaneously, while not decompose glucose and xylose, and may be recycled efficiently. The catalyst can be combined with the process in the prior art to produce liquid fuel.Type: ApplicationFiled: November 23, 2007Publication date: September 15, 2011Applicant: China Fuel (Huaibei) Bioenergy Technology DevelopmInventors: Meg M. Sun, Zuolin Zhu, Hongping Yie
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Publication number: 20110180752Abstract: The invention provides a process for direct liquification of cellulosic biomass, which may be used to liquefy all of the organics in cellulosic biomass, including all high molecular polymeric components such as carbohydrates and lignins, into small molecular organics in a short time under mild conditions. In other words, there is provided a technology capable of converting cellulosic biomass into oil. The resultant renewable high-quality oil may be converted into liquid fuels such as gasoline etc., or used as starting materials in chemical engineering industry. The technology for direct liquification of cellulosic biomass as disclosed in the invention is the first one-step process in the world for direct liquification of cellulosic biomass without black tar formation and gasification.Type: ApplicationFiled: July 28, 2008Publication date: July 28, 2011Applicant: SUN PHARMACEUTICALS, INC.Inventors: Zuolin Zhu, Meg M. Sun, Hongping Yie, Chungao Su