F26B1/00

Process for drying polymeric materials

The invention relates to a process for drying a moist polymeric material to obtain a dried polymeric material, comprising the steps of: mixing the moist polymeric material with an aqueous solution of a carbohydrate to afford a mixture of the moist polymeric material with the carbohydrate; and heating and/or filtering the mixture of the moist polymeric material with the carbohydrate to remove an amount of volatiles to obtain a predried polymeric material having a volatiles content VC.sub.pre-dried (pre-drying step); fluidizing the pre-dried material in a fluidized bed in order to further remove an amount of volatiles to obtain the dried polymeric material having a volatiles content VC.sub.dried (fluidized bed drying step); and withdrawing and collecting the dried polymeric material from the fluidized bed; wherein VC.sub.pre-dried is higher than VC.sub.dried and the moist polymeric material comprises at least a polymeric material, said polymeric material comprises fluorine permanently bonded to said polymeric material. The invention further relates to a dried polymeric material obtainable by the process of the invention. Furthermore, the invention relates to various uses of the process of the invention as well as to various uses of the dried polymeric materials.

Process for drying polymeric materials

The invention relates to a process for drying a moist polymeric material to obtain a dried polymeric material, comprising the steps of: mixing the moist polymeric material with an aqueous solution of a carbohydrate to afford a mixture of the moist polymeric material with the carbohydrate; and heating and/or filtering the mixture of the moist polymeric material with the carbohydrate to remove an amount of volatiles to obtain a predried polymeric material having a volatiles content VC.sub.pre-dried (pre-drying step); fluidizing the pre-dried material in a fluidized bed in order to further remove an amount of volatiles to obtain the dried polymeric material having a volatiles content VC.sub.dried (fluidized bed drying step); and withdrawing and collecting the dried polymeric material from the fluidized bed; wherein VC.sub.pre-dried is higher than VC.sub.dried and the moist polymeric material comprises at least a polymeric material, said polymeric material comprises fluorine permanently bonded to said polymeric material. The invention further relates to a dried polymeric material obtainable by the process of the invention. Furthermore, the invention relates to various uses of the process of the invention as well as to various uses of the dried polymeric materials.

System and method for dry material fractionation using accelerators
09968936 · 2018-05-15 · ·

A method includes introducing at least one of a whole product or a milled product (e.g., corn) to an airflow (e.g., using a gravity hopper), directing the airflow into one or more accelerators, separating a first fraction of the at least one of the whole product or the milled product from a second fraction of the at least one of the whole product or the milled product in the one or more accelerators. For example, corn germ, starch, and bran components can be separated from one another.

Methods for preparing highly porous microfibrous media with functional particles immobilized inside

Improved methods for preparing highly porous mesh media and loading functional particles into the media are described herein. The highly porous media can be used as supports for catalyst materials for a variety of applications, such as desulfurization. Pre-manufactured catalyst can be loaded into the sintered open media. Thus, the contamination issues associated wetlay paper making and pre-oxidation, the deactivation issues associated with the sintering and pre-oxidation steps, and the corrosion issues associated with the catalyst formation step can be avoided. The methods described herein result in the formation of highly porous media with functional particles immobilized inside.

Methods for preparing highly porous microfibrous media with functional particles immobilized inside

Improved methods for preparing highly porous mesh media and loading functional particles into the media are described herein. The highly porous media can be used as supports for catalyst materials for a variety of applications, such as desulfurization. Pre-manufactured catalyst can be loaded into the sintered open media. Thus, the contamination issues associated wetlay paper making and pre-oxidation, the deactivation issues associated with the sintering and pre-oxidation steps, and the corrosion issues associated with the catalyst formation step can be avoided. The methods described herein result in the formation of highly porous media with functional particles immobilized inside.

Drier apparatus
09964356 · 2018-05-08 · ·

A drier apparatus includes a cylindrical chamber in which a pair of screw conveyers each including a tubular shaft in which heat medium is able to flow, and carrier blades arranged on an outer surface of the tubular shaft is housed, a motor for rotating the screw conveyers, an input path connected to the cylindrical chamber at a proximal end of each of the screw conveyers, and an output path connected to the cylindrical chamber at a distal end of each of the screw conveyers. The input path and the output path include a device for opening and closing a path. Each of the screw conveyers includes a pair of tubular shafts arranged substantially in parallel with each other, and a plurality of semicircular carrier blades such that the carrier blades form a part of an imaginary spiral plane about the tubular shaft on an outer surface of the tubular shaft, the carrier blade being partially made of a material having a resistance to abrasion.

Method for drying spent filter media
09873640 · 2018-01-23 · ·

Disclosed is a process of stabilizing spent filter material that comprises mixing the filter media with a dry media to produce a composition having a moisture content that is sufficiently low to retard microbial growth. The composition comprises spent filter media and a dry material, and preferably comprises diatomaceous earth. Soil is treated by adding the composition as a top dressing, soil amendment, or the like.

Bioprocessing of harvested plant materials for extraction of biopolymers and related materials and methods
09873813 · 2018-01-23 · ·

Methods are provided for rapid and efficient removal and separation of leaves and bark from harvested plant material for use in extraction and purification of plant products, and in particular, the removal of leaves and bark from Guayule for the extraction of latex for use in latex and rubber products.

Bioprocessing of harvested plant materials for extraction of biopolymers and related materials and methods
09873813 · 2018-01-23 · ·

Methods are provided for rapid and efficient removal and separation of leaves and bark from harvested plant material for use in extraction and purification of plant products, and in particular, the removal of leaves and bark from Guayule for the extraction of latex for use in latex and rubber products.

Sludge drying method and installation

This sludge drying device is characterised in that a gas entraining a mix of sludge and sand is recycled after drying (6) and separation (8) to be compressed (10) and circulate again through the dryer (6) acting as a heat exchange fluid. Compression has been performed to increase the dew point temperature of the gas containing the evaporated moisture, such that the latent heat of evaporation can be recovered by the drying gas. The required operating power can then be much lower than the required power for evaporating the moisture contained in the sludge, because most of this power is recovered.