Matches 1 - 38 out of 38


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US20110044883 METHOD OF PURIFYING GYPSUM  
A method of purifying flue gas desulfurization (FGD) gypsum. The method includes the steps of a) providing an aqueous slurry containing said FGD gypsum, b) passing the aqueous slurry to a magnetic...
US20110198285 Zero Discharge Water Desalination Plant With Minerals Extraction Integrated With Natural Gas Combined Cycle Power Generation  
A desalination and minerals extraction process includes a desalination facility fluidly coupled to a minerals extraction facility. The desalination facility includes a nanofiltration membrane...
US20130022533 METHOD OF MANUFACTURING GYPSUM FOR THE PRODUCTION OF A GYPSUM MOLDED PRODUCT FROM GYPSUM BOARD WASTE  
A method of manufacturing hemihydrate gypsum powders for the production of a gypsum molded product from gypsum board waste, comprising at least the following two steps in a random order: a...
US20150158735 CALCIUM SULFATE CRYSTALS AND METHODS FOR MAKING THE SAME  
A composition of matter is provided, including anhydrite calcium sulfate whiskers having a mean aspect ratio of at least 30. Another composition of matter is provided, including alpha-derived...
US20140377162 Method of Forming a Gypsum Based Product  
A method of forming a gypsum based product is disclosed. The method comprises the steps of: calcining a mixture of water and gypsum under conditions of raised temperature and pressure within a...
US20110150750 CALCINATION METHOD AND SYSTEM  
A method for the calcination of powdery or fine-particled plaster includes steps in which the plaster is subjected to a flash-calcination in a calcinator and then post-calcinated in a reaction...
US20110165059 PRODUCTION OF ZINC SULPHATE CONCENTRATES FROM A DILUTE ZINC SULPHATE SOLUTION  
In an embodiment, the present invention relates to an apparatus and a process for producing a concentrated form of basic zinc sulphate from a, typically dilute, acidic zinc sulphate-bearing...
US20140206614 Compositions for Achieving a Therapeutic Effect in an Anatomical Structure  
Compositions and methods of using the compositions are provided for forming an embolus within a region of an anatomical lumen for a transitory period in order to achieve a therapeutic effect.
US20120035107 COMPOSITIONS FOR ACHIEVING A THERAPEUTIC EFFECT IN AN ANATOMICAL STRUCTURE  
Compositions and methods of using the compositions are provided for forming an embolus within a region of an anatomical lumen for a transitory period in order to achieve a therapeutic effect.
US20150004249 INSULIN-MIMETIC LOCAL THERAPEUTIC ADJUNCTS FOR ENHANCING SPINAL FUSION  
Bone tissue materials comprising insulin-mimetic agents, such as suitable zinc, vanadium, tungsten, molybdenum, niobium, selenium, and manganese compounds, for facilitating spinal fusion of...
US20110011311 CALCIUM SULFATE HEMIHYDRATE TREATMENT PROCESS  
A process for treating beta calcium sulfate hemihydrate is disclosed. The process comprises exposing beta calcium sulfate hemihydrate to steam at a pressure above atmospheric pressure.
US20110135930 PROCESS FOR CONTINUOUS MODIFICATION OF DIHYDRATE GYPSUM AND MODIFIED DIHYDRATE GYPSUM OBTAINED BY THE PROCESS  
Disclosed is a process for the continuous modification of dihydrate gypsum. The process includes a hemihydration step of calcining the dihydrate gypsum as a raw material into hemihydrate gypsum...
US20080250982 High Resistance Gypsum Parts and Preparation Method to Obtain These Parts  
The preparation of gypsum parts (dihydrate calcium sulfate) with high mechanical resistance is obtained with the aid of water layers with nanometric thickness. Calcium sulfate is used, dihydrate...
US20090208392 PROCESS FOR PRODUCING ALPHA-HEMIHYDRATE GYPSUM  
A process for producing alpha-hemihydrate gypsum from dihydrate gypsum includes feeding a slurry comprising the dihydrate gypsum and water into a heating tube, heating the heating tube at a...
US20100034727 PROCESS FOR PRODUCING GYPSUM  
The invention relates to a process for the preparation of a gypsum product wherein calcium sulphate hemihydrate and/or calcium sulphate anhydrite and water are contacted so that the calcium...
US20080148998 CALCIUM SULFATE HEMIHYDRATE TREATMENT PROCESS  
A process for treating beta calcium sulfate hemihydrate is disclosed. The process comprises exposing beta calcium sulfate hemihydrate to steam at a pressure above atmospheric pressure.
US20100111821 GYPSUM STABILISATION METHOD  
The invention relates to a method for reducing or eliminating the soluble content of pollutants in gypsum or in compounds containing gypsum, wherein the gypsum or gypsum-containing compound is...
US20080206126 Higher than 30% concentration lime slurries, preparation and uses thereof  
The present invention relates to a composition comprising water, more than 30% w/w of calcium hydroxide, and >0.2% w/w dispersant. A process for preparing such a composition is also disclosed. The...
US20050067082 Reduced manufacturing cost of gypsum board  
Typically in modern gypsum board manufacturing plants, the gypsum slurry is separated into two slurries. One slurry containing more air in the form of foam, relatively low density gypsum, is used...
US20100062255 GYPSUM PRODUCT AND PROCESS FOR ITS PREPARATION  
The invention relates to a gypsum product which consists of essentially intact crystals having a size of between 0.1 and below 2.0 μm. The product is especially suitable as a coating pigment or...
US20090293772 METHOD FOR STABILISING SOLUBLE METASTABLE SOLUBLE ANHYDRITE III, METHOD FOR PREPARING STABILISED SOLUBLE ANHYDRITE III HYDRAULIC BINDER, THE OBTAINED HYDRAULIC BINDER, USE OF THIS BINDER AND INDUSTRIAL FACILITY FOR CARRYING OUT SUCH A METHOD  
The invention relates to a method for stabilising a metastable soluble anhydrite III, to a method for producing a hydraulic binder based thereon, to the thus obtainable hydraulic binder, to a...
US20100166640 METHOD FOR THE PRODUCTION OF ALPHA-CALCIUM SULFATE HEMIHYDRATE FROM CALCIUM SULFATE DIHYDRATE  
Disclosed is a method for producing alpha-calcium sulfate hemihydrate from calcium dihydrate. Said method has the following features: a) calcium dihydrate is fed to an agitated autoclave (1); b)...
US20090011448 PRETREATMENT AGENT FOR LIMULUS TEST  
A pretreatment agent for a sample to be subjected to Limulus assay comprising an alkali metal sulfate and/or an alkaline earth metal sulfate wherein the sulfate(s) has a final concentration of 20...
US20150114268 SYNTHESIS AND USE OF GYPSUM SEEDING MATERIAL  
The invention relates to a process for producing calcium sulphate dihydrate by reacting a water-soluble calcium compound with a water-soluble sulphate compound in the presence of water and a...
US20120316340 USE OF METAL-ACCUMULATING PLANTS FOR THE PREPARATION OF CATALYSTS THAT CAN BE USED IN CHEMICAL REACTIONS  
The use of metal-accumulating plants for implementing chemical reactions.
US20090257946 METHOD AND APPARATUS FOR PRESSURIZED CALCINATION OF GYPSUM  
A method for calcining gypsum in a pressurized reactor by injecting combustion gases and air into the pressurized reactor to create a fluidized bed of gypsum, and heating the fluidized bed of...
US20100202990 POWDER COSMETIC AND PROCESS FOR PRODUCTION OF FLAKY CALCIUM SULFATE DIHYDRATE TO BE USED IN THE COSMETIC  
The invention aims at providing a powder cosmetic which does not suffer from the aggregation of powder even when it contains a large amount of oily component and in which no caking of powder on...
US20110034318 PROCESS AND PLANT FOR THE HEAT TREATMENT OF FINE-GRAINED MINERAL SOLIDS  
A process for heat treatment of fine-grained mineral solids includes passing fine-grained mineral solids through a flash reactor so as to contact the fine-grained mineral solids with hot gases in...
US20150072389 PROCESS FOR THE STEPWISE TREATMENT OF LIGNOCELLULOSIC MATERIAL TO PRODUCE REACTIVE CHEMICAL FEEDSTOCKS  
A method for the fractionation of lignocellulosic materials into reactive chemical feedstock in a batch or semi continuous process by the stepwise treatment with aqueous aliphatic alcohols in the...
US20090220405 Systems and Methods for Generating Sulfuric Acid  
Methods and systems for generating sulfuric acid (102) are disclosed. In some embodiments, the method includes combusting a sulfur-containing material (114) with a gas including oxygen (116) to...
US20100143236 Preparation of hydrogen fluoride from calcium fluoride and sulfuric acid  
Calcium fluoride fines or residues comprising calcium fluoride fines, e.g. residues from treating waste water or waste gas, e.g. originating from HF or fertilizer production, with calcium oxide or...
US20060051286 Double replacement cation neutralization of high alkalinity waste materials  
A method of treating hydroxide alkaline waste and by-products to render the material neutralized or reduced in pH from near 14 to a minimum lower limit of about 5.3 based on aluminum poly cation...
US20090291037 METHOD OF INERTISING THE IMPURITIES IN PHOSPHOGYPSUM  
The invention pertains to a method of inertising free soluble impurities of phosphates and/or fluoride ions, in phosphogypsum, for use in commercial and industrial applications. The Phosphogypsum...
US20150190750 FLUE GAS DESULFURIZATION APPARATUS  
An apparatus is provided for removing sulfur oxides from a flue gas stream. That apparatus includes an absorber tower having an upper section and a lower section. A packed bed unit is provided in...
US20110190446 Three-dimensional modeling apparatus, method of manufacturing a three-dimensional object, and three-dimensional object  
Provided is a three-dimensional modeling apparatus including a supply mechanism, a deposition area, a variable mechanism, a discharge mechanism, and a control means. The supply mechanism supplies...
US20160122197 MICROWAVE HEATING FOR GYPSUM MANUFACTURING PROCESSES  
Methods of making calcium sulfate whiskers are provided. In one aspect, a method includes autoclaving a slurry of calcium sulfate hemihydrate and water to form calcium sulfate hemihydrate whiskers...
US20160002106 LOWER HEAT PROCESSED CALCIUM SULPHATES FOR EARLY STRENGTH CEMENTS AND GENERAL USE  
The Invention is related to increasing of early strength and final strengths of cements classified under EN and ASTM as Portland or CEM cements and also related to all clinker employing cements...
US20150328645 Method for separating calcium carbonate and gypsum  
A method for separating a suspension containing gypsum granules and calcium carbonate granules and an aqueous solution, wherein the aqueous solution comprises at least one sodium salt, wherein the...

Matches 1 - 38 out of 38