Class / Patent application number | Description | Number of patent applications / Date published |
423430000 |
Alkaline earth metal containing (Mg, Ca, Sr, or Ba)
| 66 |
423421000 |
Alkali metal containing (Li, Na, K, Rb, or Cs)
| 30 |
423420200 |
Plural metal containing
| 10 |
423420000 |
Ammonium containing | 5 |
20110110841 | METHOD AND APPARATUS FOR PRODUCING AMMONIUM CARBONATE FROM UREA - A method for producing ammonium carbonate from urea having the steps of providing a urea solution; hydrolyzing the urea solution to produce NH | 05-12-2011 |
20110171105 | System and Process for Capturing, Concentrating, or Crystallizing a Target Compound from a Mixture - The invention concerns a capture tank for capturing a captive target compound from a gaseous and/or vaporous mixture comprising at least the captive target compound and one other material, or for capturing, concentrating or crystallising a target compound from a liquid mixture or solution comprising the target compound and at least one other material, the capture tank comprising an enclosure having a top region, a bottom region and at least one side defining the enclosure, the enclosure being at least partly open in its top region in order to communicate in use of the capture tank with the gaseous and/or vaporous mixture and for permitting ingress of a gaseous and/or vaporous mixture into the enclosure; the enclosure communicating in its bottom region with a reservoir for receiving the captured captive target compound; having means associated with its at least one side and/or its bottom region for permitting egress from the enclosure of the gaseous and/or vaporous mixture in at least partially captive target compound-depleted form; and having means for sparging at least partially through the enclosure from top to bottom a liquid mixture or solution for entraining the gaseous and/or vaporous mixture in the enclosure and carrying the entrained gaseous and/or vaporous mixture towards the bottom region of the enclosure, and a process for its operation. | 07-14-2011 |
20130028827 | AMMONIUM RECOVERY FROM WASTE WATER USING CO2 ACIDIFIED ABSORPTION WATER - The processes are utilized to recover ammonium from waste water using CO | 01-31-2013 |
20140050651 | System and process for trapping sulfur dioxide and carbon dioxide by ammonia absorption at atmospheric pressure - A system and a process for capture and absorption of sulfur dioxide and carbon dioxide by an ammonia method at normal pressure are disclosed. The system has a dilute ammonia water supply device connected with sulfur dioxide and carbon dioxide absorption devices; an induced draft fan is connected with a heat exchanger connected with the sulfur dioxide absorption device; a sulfur dioxide absorption tower is connected with a carbon dioxide absorption tower; cooling devices in the sulfur dioxide and carbon dioxide absorption towers share a cooling water inlet and outlet pipe; the sulfur dioxide and carbon dioxide absorption devices respectively restore ammonia concentration to original ammonia water concentration by supplementing concentrated ammonia water; the sulfur dioxide and carbon dioxide absorption devices respectively pump solutions into the heat exchangers, then the solutions enter crystallization tanks; solid-liquid separation is performed through centrifuges, and the liquid continues to circulate in the system. | 02-20-2014 |
20160200613 | PROCESS TO RECOVER AMMONIUM BICARBONATE FROM WASTEWATER | 07-14-2016 |
Entries |
Document | Title | Date |
20090169461 | Mixture For Recovery Utilization Or Transfer Of Carbon Dioxide - It is an object of the present invention to provide a mixture for recovery utilization or transfer of carbon dioxide gas. According to the present invention, disclosed is a mixture containing carbon dioxide and an alkyltin alkoxide composition containing carbon dioxide complex of an alkyltin alkoxide, the mixture having a composition with a specified ratio. | 07-02-2009 |
20090246115 | Process for reaction of limestone with sulfate solution - The present invention is a process to react limestone with sulfate and/or sulfuric acid solutions and/or other solutions containing sulfates, in order to neutralize the solutions and precipitate the sulfates, in such a way that the limestone is used with an efficiency that makes the use of limestone economic. In the present invention, the limestone is reacted with the solution continuously, in a high intensity reactor, which is designed to provide efficient high-energy input and continuous renewal of the limestone surface. | 10-01-2009 |
20090324481 | LOW ENERGY METHOD OF PREPARING BASIC COPPER CARBONATES - A method of forming basic copper carbonates includes providing an aqueous solution comprising copper (II) ammonia, and carbonic acid; and adding sufficient carbon dioxide to precipitate a basic copper carbonate from the aqueous solution. | 12-31-2009 |
20090324482 | LOW ENERGY METHOD OF PREPARING BASIC COPPER CARBONATES - A method of forming basic copper carbonates includes providing an aqueous solution comprising copper (II), ammonia, and carbonic acid; and adding sufficient carbon dioxide to precipitate a basic copper carbonate from the aqueous solution. | 12-31-2009 |
20100028241 | Hydrogen Production and Carbon Sequestration in Coal and Natural Gas-Burning Power Plants - This invention describes a system of reactions for a partial sequestration of carbon (CO | 02-04-2010 |
20100143233 | METHOD FOR PREPARING CERIUM CARBONATE POWDER - In a method for preparing cerium carbonate powder by mixing a cerium precursor solution with a carbonate precursor solution and carrying out a precipitation reaction, wherein cerium carbonate is controlled to have an orthorhombic crystal structure, a hexagonal crystal structure or an orthorhombic/hexagonal mixed crystal structure, by using at least one type of organic solvent comprising at least two hydroxyl groups (OH) in molecular formula as a solvent for either or both the cerium precursor solution and the carbonate precursor solution, and varying a number of carbons or hydroxyl groups (OH) included in the molecular formula of the organic solvent. The method can easily and inexpensively obtain cerium carbonate powder with a desired crystal structure without the danger by high-temperature high-pressure and the need for an expensive system in hydrothermal synthesis. | 06-10-2010 |
20110311428 | NICKEL COMPOSITIONS FOR PREPARING NICKEL METAL AND NICKEL COMPLEXES - Nickel compositions for use in manufacturing nickel metal compositions, and specifically to methods of making basic nickel carbonates used to produce nickel metal compositions are disclosed. By varying the molar ratios of carbonates and bicarbonates to nickel salts, the methods provide basic nickel carbonates that produce superior nickel-containing solids that react more effectively with phosphorous-containing ligands. The phosphorous containing ligands can be both monodentate and bidentate phosphorous-containing ligands. | 12-22-2011 |
20120213688 | METHODS OF SEQUESTERING CO2 - Methods of sequestering carbon dioxide (CO | 08-23-2012 |
20120269713 | PROCESS FOR PRODUCTION OF NICKEL CARBONATE - Aspects of the present invention refers to a process for production of nickel carbonate including preparing a magnesium salt solution, contacting the solution with a stream of gaseous CO | 10-25-2012 |
20130272949 | TRANSITION METAL COMPOUND PARTICLES AND METHODS OF PRODUCTION - A method of preparing insoluble transition metal compound particles is described, comprising: providing a transition metal salt solution having the formula (TM)(S) wherein TM is one or more of Mn, Ni, Co, Mg, Zn, Ca, Sr, Cu, Zr, P, Fe, Al, Ga, In, Cr Ge or Sn; providing a source of a carbonate-, hydroxide-, phosphate-, oxyhydroxide- or oxide-based anionic compound wherein the anionic component, represented by S′, is reactive with TM to form the particles; adding the transition metal salt solution and anionic compound to a reaction chamber; and subjecting the chamber to sonication at an intensity of about 0.1 to about 50 W/mL. In an exemplary embodiment, MnCO | 10-17-2013 |
20150298979 | CARBON DIOXIDE CAPTURE AND STORAGE SYSTEM - A system for capturing and storing carbon dioxide. The CO | 10-22-2015 |
20160090311 | Method for forming Basic Nickel Carbonate - The present disclosure provides a novel method to fabricate the basic nickel carbonate particulates. The nickel content in the basic nickel carbonate particulates fabricated by this invention (51-53 mass %) is higher than the present commercialized products (44-46 mass %). Basic nickel carbonate is an important intermediate to prepare NiO and pure Ni particles, and NiO and pure Ni particles are important materials in electronic industrial. Therefore, basic nickel carbonate has its potential market. | 03-31-2016 |