The manufacturing method includes a granulation step. The granulation step is a step of forming a plurality of granules by performing extrusion granulation on a granulation material using a granulation machine. The granulation machine includes a die and a roller. A through hole that allows the granulation material to pass therethrough is formed in the die. The roller pushes the granulation material into the through hole while rolling on the surface of the die. In the granulation step, low-speed pushing in which the granulation material is pushed while the roller rolls at a first speed, and high-speed pushing in which the granulation material is pushed while the roller rolls at a second speed that is higher than the first speed are executed.

Method for solidifying a chemical product (10) which is in melt form, comprising the following steps: subjecting a first stream (10a) of said chemical product to a prilling stage, with production of prills (12) of varying diameter; feeding said prills (12) to a screening device, which separates them according to their diameter into at least a first fraction (13) and a second fraction (14), the average diameter of the prills of said first fraction (13) being smaller than the average diameter of the prills of said second fraction (14); subjecting a second stream (10b) of said chemical product and the first fraction (13) of prills to a granulation stage, with the production of granules (16).

A method of fabricating an electrically conductive loaded powder of thermoplastic polymers. The method comprises the steps of making an original powder containing cores made of thermoplastic polymers and of making the loaded powder by using electrically conductive submicrometer filaments and wax, forming a plurality of particulate compounds each comprising one of the cores together with at least one of the filaments and a protective membrane of the wax.

Methods and system for increasing the water solubility and availability of zinc in granular fertilizers using acid treatments. The treatment of granular fertilizers with an acidic solution increases an amount of water-soluble zinc, which in turn, increases the efficiency of zinc uptake and reduces the costs and equipment otherwise needed to mitigate zinc deficiencies.

A method of making a thermoplastic road marking material includes using a flaking device to form thermoplastic flakes from a cooled mixture. A method of marking a pavement includes melting the thermoplastic flakes and applying the melted composition to a roadway by screeding, extruding or spraying.

Described herein are compositions and methods relating to thermoplastic pavement marking flake or flakes.

Methods for forming multiphasic microparticles by using wettability engendered template self-assembly (WETS) techniques are provided. A template is used that defines wettable regions to polar and non-polar liquids and non-wettable regions to polar and non-polar liquids. A first liquid is applied to the template and forms a solid or semi-solid release layer. A second liquid is applied over the release layer to form a solid or semi-solid first layer and a third liquid is applied over the first layer to form a solid or semi-solid second layer. The first layer and the second layer can be released from the template by removing the release layer from the template with a treatment agent to form multiphasic microparticles. Methods for making the templates and multiphasic micro particles are also provided.

A method of manufacturing a composite granular grouting material according to the present invention comprises: mixing bentonite and auxiliary component; forming spherical composite granules by agglomerating the mixture of bentonite and auxiliary component; drying the formed composite granules; and forming bentonite layer having lower density for forming slurry outside the composite granules by mixing bentonite with the spherical composite granules and agglomerating the same. The grouting material according to the present invention has excellent thermal conductivity and water blocking capability.

A process for the finishing of urea comprising: (a) removing water from an aqueous urea solution in a first evaporation and condensation section, obtaining a urea melt; (b) subjecting said urea melt to a finishing treatment comprising granulation and resulting in solid urea and air contaminated with urea dust and ammonia; (c) subjecting said contaminated air to acid scrubbing, producing an aqueous solution comprising urea and ammonium salts; (d) subjecting at least part of said aqueous solution to evaporation in a second evaporation section, obtaining a liquid stream comprising urea and ammonium salts and a gaseous stream; (e) condensing said gaseous stream in a second condensation section, obtaining a recycle aqueous stream; (f) using at least a part of said recycle aqueous stream for the scrubbing of contaminated air; (g) converting at least a portion of said liquid stream comprising urea and ammonium salts into solid particles, and (h) using said solid particles as seeds for the granulation; a corresponding urea plant and method of revamping a urea plant are also disclosed.

Methods and system for increasing the water solubility and availability of zinc in granular fertilizers using acid treatments. The treatment of granular fertilizers with an acidic solution increases an amount of water-soluble zinc, which in turn, increases the efficiency of zinc uptake and reduces the costs and equipment otherwise needed to mitigate zinc deficiencies.