子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Joint production of a soda lye, poor in sodium chloride, and of glauber salt | US73931234 | 1934-08-10 | US2034999A | 1936-03-24 | KARL STAIB; HERMANN HERES |
| 162 | Manufacture of potassium salts from potassium chloride | US51084231 | 1931-01-23 | US1892341A | 1932-12-27 | LOUIS HACKSPILL; DOMINIQUE CLAUDE; EMILE ANDRES LOUIS; ANTOINE ROLLET PIERRE ALEXANDR |
| 163 | Process of producing alumina, alkali, and dicalcium silicate | US38206720 | 1920-05-17 | US1591364A | 1926-07-06 | COWLES ALFRED H |
| 164 | Process of making alkaline-metal oxid. | US1902133891 | 1902-12-04 | US798103A | 1905-08-29 | HUTZLER RUDOLF |
| 165 | Gael lowig | US274619D | US274619A | 1883-03-27 | ||
| 166 | Improvement in the production of caustic alkalies from carbonates | US152845D | US152845A | 1874-07-07 | ||
| 167 | Preparation method of 4-(4-amino-3-fluorophenoxy)-N-methylpyridine-2-formamide | US15532374 | 2015-11-09 | US10081599B2 | 2018-09-25 | Guan Wang; Xufeng Yu; Guo Wei; Jian Chai; Zhiqing Yang |
| The present invention relates to a preparation method of 4-(4-amino-3-fluorophenoxy)-N-methylpyridine-2-formamide capable of enabling 4-chlorine-N-methylpyridine-2-formamide to react with 4-amino-3-fluorophenol in the presence of an inorganic base. The present invention employs the inorganic base to replace potassium t-butoxide in the prior art, thus effectively solving the problem of a potential safety hazard of the potassium t-butoxide in industrial production. In addition, after the reaction is completed, the present invention employs a crystallization method for separation to obtain a reaction product; thus compared with the methods of extraction, concentration and column isolation and purification employed in the prior art, the present invention has a simpler operation and a lower cost, results in less environment pollution and a higher yield, and is very suitable for industrial production. | ||||||
| 168 | Chemical solution production | US15850922 | 2017-12-21 | US20180214584A1 | 2018-08-02 | Stanley Marcinkowski; David Owens, JR.; David Bryant Snaith |
| Solution production devices, systems, and methods. The system includes a base portion configured to receive a vessel containing a liquid. Upon the base portion receiving the vessel, liquid is transferred from the vessel and into the base portion where it undergoes an electrochemical reaction to produce a cleaning solution. The cleaning solution is then circulated back into the vessel. | ||||||
| 169 | PROCESS FOR MAKING MIXTURES OF CHELATING AGENTS | US15573155 | 2016-05-03 | US20180105486A1 | 2018-04-19 | Armin STAMM; Thomas SCHMIDT; Christopher ORR; Jeremy MANNING |
| Process for making a chelating agent according to the general formula (I), R1—CH(COOX1)—N(CH2COOX1)2 wherein R1 is selected from hydrogen, C1-C4-alkyl, phenyl, benzyl, CH2OH, and CH2CH2COOX1, X1 is (MχH1-χ), M being selected from alkali metal, x is in the range of from 0.6 to 1, said process comprising the following steps: (a) providing a solid, a slurry or a solution of a compound according to general formula (II a) R1—CH(COOX2)—N(CH2CN)2 wherein X2 is (MyH1-y), M being selected from alkali metal, y is in the range of from zero to 1, (b) contacting said solid or slurry or solution with an aqueous solution of alkali metal hydroxide, wherein the molar ratio of alkali metal ions to nitrile groups is in the range of from 0.6:1 to 0.95:1, (c) reacting said compound according to general formula (II a) with said alkali metal hydroxide. | ||||||
| 170 | METHOD OF PREPARING OXALIC ACID | US15548110 | 2016-02-03 | US20170370011A1 | 2017-12-28 | Jan Hermen Hendrik MEURS |
| The present invention provides a method of preparing oxalic acid (H2C2O4), the method at least comprising the steps of: (a) providing a metal formate (HCO2M) containing stream, wherein the metal (M) of the metal formate (HCO2M) is a monovalent metal selected from the group consisting of Li, Na, K, Cs, Rb and a mixture thereof; (b) heating the metal formate (HCO2M) containing stream thereby obtaining a metal oxalate (M2C2O4) containing stream; (c) subjecting the metal oxalate (M2C2O4) containing stream to electrodialysis, thereby obtaining at least oxalic acid (M2C2O4) and a metal hydroxide (MOH). | ||||||
| 171 | METHOD FOR PREPARING 3-CARBAMOYMETHYL-5-METHYLHEXANOIC ACID IN RECYCLING WAY | US15521021 | 2015-10-13 | US20170334836A1 | 2017-11-23 | Shudong Wang; Xuehai You; Wenling Zhang |
| The present invention provides a method for recycling 3-carbamoymethyl-5-methylhexanoic acid from 3-carbamoymethyl-5-methylhexanoic acid chiral resolving mother liquor. The method comprises the following steps: (a) distilling 3-carbamoymethyl-5-methylhexanoic acid chiral resolving mother liquor, adding aromatic hydrocarbon, heating to dissolve, keeping the temperature and stirring; (b) after completing the reaction in step (a), cooling the reaction solution to 30-60° C., then adding alkali liquor dropwise, keeping the temperature and reacting; and (c) after completing the reaction in step (b), cooling the reactant to 20-30° C., layering, adjusting the pH of the separated water layer to 1 to 2, performing extraction by using an organic solvent, distilling an organic phase under a reduced pressure, and crystallizing at 0±5° C. to obtain 3-carbamoymethyl-5-methylhexanoic acid. The method provided in the present invention is convenient to operate, and the recycled product is high in purity (≧99.8%) and yield. | ||||||
| 172 | METHOD FOR INACTIVATING SODIUM METAL | US15313667 | 2015-05-29 | US20170209905A1 | 2017-07-27 | Hideaki ITO; Toru ARAKAWA; Takahiro AIBA |
| A method for cleaning a storage tank to which sodium metal is adherent, the method containing: filling, with an inert oil, the storage tank to which sodium metal is adherent; subsequently adding water, water vapor, or a humidified inert gas to the inert oil; providing a gas discharge line to the storage tank and measuring the hydrogen gas concentration in the gas discharge line; regulating the amount of the water, water vapor, or humidified inert gas to be added per hour in accordance with the level of the hydrogen gas concentration; regulating the temperature of the inert oil to 0-98° C.; and converting the sodium metal into caustic soda while changing the liquid surface level of the inert oil in parallel with addition of the water, water vapor, or humidified inert gas to the inert oil. | ||||||
| 173 | PURIFICATION OF BRINE SOLUTION | US15305699 | 2015-04-29 | US20170044313A1 | 2017-02-16 | Ahmed A. YOUSSEF |
| Systems and methods for treatment of an effluent stream are disclosed. In an aspect, a system can comprise an input configured to receive a brine solution, a purification component in communication with the input and configured to receive the brine solution therefrom, the purification component comprising activated carbon, wherein the brine solution is caused to pass through the activated carbon to produce a purified solution, and an output in communication with the purification component to receive the purified solution therefrom. | ||||||
| 174 | SANITIZING PRODUCT CREATION SYSTEM | US15013429 | 2016-02-02 | US20160330968A1 | 2016-11-17 | David Owens; Pat Lucci; Michael Marcinkowski; Sandy Posa; John Gentile; Ronald H. Haag; Mike Brody; Tayler Kaiserman; Terrance Z. Kaiserman; Steven Martin Cohen |
| A sanitizing product creation system employing electricity to produce products useful for sanitizing and disinfecting surfaces. | ||||||
| 175 | Sodium-nano liquid reactivity experiment apparatus | US14382538 | 2012-03-20 | US09346031B2 | 2016-05-24 | Moo Hwan Kim; Ho Seon Ahn; Gunyeop Park; Soojae Kim |
| A sodium-nanoliquid reactivity experiment apparatus includes: a storage tank that stores liquid sodium; a mixing tank that is connected to the storage tank through a first transport line to receive supply of the liquid sodium and that injects nanoparticles to mix the nanoparticles with the liquid sodium; and a reactor that is connected to the mixing tank through a second transport line to receive supply of a sodium-nanoparticle mixture and that injects water to react the water with the sodium-nanoparticle mixture. | ||||||
| 176 | CHEMICAL SOLUTION AND METHOD OF UNCLOGGING STOPPED TOILETS | US14793336 | 2015-07-07 | US20160002575A1 | 2016-01-07 | Steve KAYLOR |
| A method for employing a particular chemical compound formed with sodium hydroxide to rapidly clear clogs in drains, such as clogs caused by organic debris in toilet drains. A user may dispense this chemical compound in solid or powder form into the drain, following which the chemical will attack the source of the clog and potentially clear the drain. | ||||||
| 177 | PROCESSES FOR TREATING FLY ASHES | US14388285 | 2013-03-11 | US20150075328A1 | 2015-03-19 | Richard Boudreault; Joël Fournier; Denis Primeau |
| There are provided processes for treating fly ash. For example, the processes can comprise leaching fly ash with HCl so as to obtain a leachate comprising aluminum ions and a solid, and separating the solid from the leachate; reacting the leachate with HCl so as to obtain a liquid and a precipitate comprising the aluminum ions in the form of AlCl3, and separating the precipitate from the liquid; and heating the precipitate under conditions effective for converting AlCl3 into Al2O3 and optionally recovering gaseous HCl so-produced. | ||||||
| 178 | METHOD AND A SYSTEM FOR ISOLATING XYLAN FROM PLANT MATERIAL, AS WELL AS XYLAN | US14389183 | 2013-03-26 | US20150064331A1 | 2015-03-05 | Björn Krogerus; Agneta Fuhrmann; Christiane Laine |
| A method and a system for preparing xylan and calcium carbonate, xylan, a cellulose fibre, and precipitated calcium carbonate. The method includes extracting xylan from cellulose fibres with sodium hydroxide to form a mixture containing cellulose fibres and an extract solution containing xylan; removing the cellulose fibres from the mixture to isolate the extract solution; adding carbon dioxide to the isolated extract solution to form a mixture containing a liquid brightener and precipitated xylan; separating the brightener from the mixture to isolate the precipitated xylan; adding calcium hydroxide to the separated brightener to form a mixture of precipitated calcium carbonate and liquid sodium hydroxide; and removing the sodium hydroxide from the mixture to isolate the calcium carbonate. | ||||||
| 179 | Production of carboxylic acid and salt co-products | US13039913 | 2011-03-03 | US08829237B2 | 2014-09-09 | Robert J. Hanchar; Susanne Kleff; Michael V. Guettler |
| This invention provide processes for producing carboxylic acid product, along with useful salts. The carboxylic acid product that is produced according to this invention is preferably a C2-C12 carboxylic acid. Among the salts produced in the process of the invention are ammonium salts. | ||||||
| 180 | PRODUCTION OF CARBOXYLIC ACID AND SALT CO-PRODUCTS | US13039913 | 2011-03-03 | US20120225095A1 | 2012-09-06 | Robert J. Hanchar; Susanne Kleff; Michael V. Guettler |
| This invention provide processes for producing carboxylic acid product, along with useful salts. The carboxylic acid product that is produced according to this invention is preferably a C2-C12 carboxylic acid. Among the salts produced in the process of the invention are ammonium salts. | ||||||
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