Modified sulfur particles and its preparation method and application

Abstract

The invention relates to the technical field of sulfur, and relates to a modified sulfur granule and its preparation method and application; the raw material of the modified sulfur granule contains 80 to 100 parts of sulfur and 1 to 10 parts of hydrogen sulfide inhibitor in parts by weight; The modified sulfur granules are obtained according to the following steps: in the first step, add the required amount of sulfur and hydrogen sulfide inhibitor into the reaction vessel and mix them uniformly, then place the uniformly mixed sulfur and hydrogen sulfide inhibitor at 130°C to Heating in an oil bath at 140°C, the sulfur and hydrogen sulfide inhibitors are melted and reacted for 25 to 35 minutes before turning into bright gray black. In the present invention, sulfur and hydrogen sulfide inhibitors are heated and reacted in an oil bath, and the reacted mixture is poured into cold water and filtered to obtain modified sulfur particles; the present invention has the advantages of easy-to-obtain raw materials, stable physical and chemical properties, convenient storage and transportation, and The combination of asphalt and hydrogen sulfide has a good suppression effect, which reduces the production cost and improves the production efficiency.

Description

technical field [0001] The invention relates to the technical field of sulfur, and relates to a modified sulfur particle, a preparation method and application thereof. Background technique [0002] In order to meet the ever-increasing needs of road traffic, improve the design and construction quality of the road surface, especially the quality of the asphalt surface layer, so that it can meet the requirements of bearing capacity, durability, comfort, and safety within the design period, road scientific and technological personnel work in A lot of research has been done on the surface layer binder, various formulations of modified asphalt have been widely used, and some new modification methods are also being studied continuously. As early as a century ago, people knew that sulfur has the characteristics of improving the quality of asphalt. Sulfur modification was widely used in the United States and Canada in the 1970s, but the suppression effect of hydrogen sulfide was not ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a modified sulfur particle and its preparation method and application, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the existing problem of sulfur asphalt The production cost of adding free radical inhibitors to the mixture is high, and the mixing is uneven, resulting in poor inhibition effect