Patent classifications
C08L2555/34
ASPHALT SHINGLE WASTE ROOFING MATERIALS AND RELATED METHODS
Non-limiting embodiments of the present disclosure relate to a method comprising: obtaining asphalt shingle waste (ASW) and performing grinding, screening, and separating steps on the ASW. In some embodiments, granules are removed from the ASW. In some embodiments, the method transforms ASW into ASW powder. In some embodiments, the ASW powder is formed into a plurality of briquettes. In some embodiments, at least one of: the ASW powder, the plurality of briquettes, or any combination thereof is fed into a mixing process that results in an ASW powder filled coating.
Methods of forming an asphalt shingle waste powder from asphalt shingle waste
Non-limiting embodiments of the present disclosure relate to a method comprising: obtaining asphalt shingle waste (ASW) and performing grinding, screening, and separating steps on the ASW. In some embodiments, granules are removed from the ASW. In some embodiments, the method transforms ASW into ASW powder. In some embodiments, the ASW powder is formed into a plurality of briquettes. In some embodiments, at least one of: the ASW powder, the plurality of briquettes, or any combination thereof is fed into a mixing process that results in an ASW powder filled coating.
LECITHIN DRYING USING FATTY ACIDS
Aspects of the present invention provide methods of drying lecithin in a batch reaction, comprising the steps of obtaining a lecithin-containing material (derived from a crude refining stream) comprising 15-50% water, 10-30% acetone insoluble matter, and 10-20% free fatty acid; adding a fatty acid source (also derived from a crude refining stream) to the lecithin-containing material composition to obtain a lecithin/fatty acid reaction mixture; and blowing dry gas through the gum/fatty acid reaction mixture to obtain a resultant dried lecithin fatty acid blend having a water content of less than 2%. The resultant dried lecithin fatty acid blend may be used in asphalt or oil field applications.
BIOBASED ASPHALT REJUVENATING EMULSION
A polymer-modified emulsion used for rejuvenating or repairing deteriorated asphalt pavement includes an asphalt phase containing an asphalt and a biobased rejuvenating agent, and an aqueous phase including water and an emulsifying agent, and one or more polymers included in the asphalt phase, the aqueous phase or both.
Bitumen solid at ambient temperature
Bitumen that is solid at ambient temperature in the form of granules that include a core made of a first bituminous material and a coating made of a second bituminous material, the second bituminous material having a total content of asphaltenes, extracted using n-alkane, of 30% to 50% by weight in relation to the total weight of the bitumen in the coating.
Asphalt composition comprising humins obtained from dehydration of carbohydrates
An asphalt composition comprising aggregates and a binder material, wherein the binder material comprises humins, which humins comprise carbonaceous water-insoluble by-products of the dehydration of carbohydrates and/or 5-hydroxymethylfurfural and/or ethers or esters of 5-hydroxymethylfurfural. The invention also provides a binder material for use in asphalt compositions comprising from 1 to 95% wt, preferably from 5 to 60% wt of such humins, based on the weight of the binder material. The invention further provides for the use of such humins in the manufacture of binder material for asphalt compositions and the use of such humins as binder material in asphalt compositions.
Rubber-Modified Bitumen, Process for Production Thereof and Use Thereof in Asphalt
The present invention relates to novel rubber-modified bitumen, to improved processes for producing rubber-modified bitumen using vulcanized rubber and to the use thereof in asphalt.
Enhanced alkyl ester containing oil compositions and methods of making and using the same
Vegetable oil compositions, as an example, corn oil, having an elevated lower alkyl ester content above about 7% weight percent of the total weight of the oil composition, and uses thereof are provided.
GRANULATED ADDITIVE BASED ON TEXTILE FIBRES FROM END-OF-LIFE TYRES (ELT), TYRE POWDER AND ASPHALT BINDER AND METHOD FOR OBTAINING THE PRODUCT AND USE
A solution to the two major problems that exist today, on the one hand, by recovering the textile fibers extracted from the recycling and Processing of ELTs and, on the other hand, by providing the asphalt paving industry with an alternative mixture with superior performance to that of existing conventional mixtures. More specifically, a granulated additive based on textile fibers and rubber powder from end-of-life tires, having (a) 20% to 30% of textile fiber composed mainly of polyamide or polyester fibers, which together are of the order of 10% by weight of an ELT, (b) 20% to 50% of asphalt binder, (c) 25% to 45% of rubber powder from end-of-life tires in a fraction smaller than 0.5 mm, and (d) 3% to 10% of rubber powder from end-of-life tires in a fraction smaller than 0.18 mm. In addition, the method for obtaining same and its use in asphalt mixtures.
METHOD FOR RECYCLING ASPHALT
A method and an apparatus for processing and recovering bitumen (42) and aggregate (41) from asphalt (40), in which: a) the asphalt (40) is mechanically comminuted; b) the comminuted asphalt is introduced into an evacuated or evacuatable processing chamber (1); c) the processing chamber (1) is evacuated by adjusting the pressure in the processing chamber (1) to a pressure lower than ambient pressure, preferably 200 mbar or lower; d) the processing chamber (1) is then charged at least once with a liquid organic solvent; e) the liquid organic solvent is then extracted from the processing chamber (1); and then f1) the organic solvent is fed into the evacuated processing chamber (1) in the vapor phase at the reduced pressure, at a temperature at or above the flash point of the organic solvent; and/or f2) liquid organic solvent is fed into the treatment chamber (1).