| Entries |
| Document | Title | Date |
|---|
| 20090078616 | Sieving media from planar arrays of nanoscale grooves, method of making and method of using the same - Disclosed herein are an apparatus and a method for separating molecules on the basis of size and or structure, and to a method of making the apparatus. Generally, the separation method includes passing a fluid comprising particles having different effective molecular diameters through a plurality of open, nanoscale channels disposed in surfaces of substrates. The method also includes obtaining a plurality of fractions of the passed fluid such that each of the fractions includes a major portion containing particles having similar size and shape and substantially free of particles having larger size and shape. The apparatus includes first and second substrates each of which has a surface containing a plurality of open, nanoscale channels disposed therein. The surfaces are bonded together such that each of the channels of the first substrate is in fluid communication with at least two of the channels of the second substrate and is misaligned relative to the channels of the second substrate. Interferometric lithography and anodic bonding or flip-chip bonding techniques can be used to make the apparatus. | 03-26-2009 |
| 20100000912 | Method Of And Apparatus For Separating Out Materials Heavier Than Plastic, In Particular Metals, By Flotation In A Water Bath, In A Separation Of Plastics Of Different Densities - A process and device for separation of plastic material from other stuff of a various density by a flotation process in a liquid bath. The process involves discharging heavier stuff that settles on the screen bottom by a movable screen bottom slowly moves in the direction of reducing a slot that exists between one edge of screen bottom and the wall of the flotation tank and then after having reached a final position too quickly and abruptly move in the counter-direction. That movement occurs in intervals. This abrupt motion of screen bottom initiates that kinetic energy accumulated in the heaps of metal and other heavy stuff moves this stuff towards the slot-edge and through the slot into a collection-container underneath the screen bottom to be discharged. | 01-07-2010 |
| 20110203975 | Mixture of an Amine Alkoxylate Ester and a Quaternary Ammonium Compound as a Collector for Minerals Containing Silicate - The invention relates to the use of a composition of A) at least one quaternary ammonia compound comprising at least one organic radical bonded to the ammonia nitrogen atom and optionally comprising heteroatoms and having 1 to 36 carbon atoms, and B) at least one amine alkoxylate ester of formula (1) or a salt thereof, | 08-25-2011 |
| 20140197077 | METHOD AND SYSTEM FOR RELEASING MINERAL FROM SYNTHETIC BUBBLES AND BEADS - A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attaching mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment. | 07-17-2014 |
| 20160038948 | PROCESS AND CHEMISTRY FOR REDUCING DOLOMITE CONCENTRATIONS IN PHOSPHATE PROCESSING - A magnesium suppressant/flocculant for use in separating dolomite from calcium phosphate. The magnesium suppressant/flocculant may be applied at a mine site prior to subjecting ore fractions to phosphate flotation or at a chemical plant after grinding. | 02-11-2016 |
| 20170232451 | RECOVERY MEDIA FOR MINERAL PROCESSING, USING OPEN CELL OR RETICULATED FOAM HAVING 3-DIMENSIONAL FUNCTIONALIZED OPEN-NETWORK STRUCTURE FOR SELECTIVE SEPARATION OF MINERAL PARTICLES IN AN AQUEOUS SYSTEM | 08-17-2017 |
