A composite fireproof board easy for processing, splicing and installation is disclosed. The structure thereof includes, from top to bottom, a bottom layer, a lower reinforcement mesh layer, a middle layer, an upper reinforcement mesh layer, and a surface layer. The middle layer includes an organic frame and an inorganic fireproof material filled within the frame. The frame is provided with fixed grooves on edges adjacent to the fireproof material, and is further provided with through holes. A preparation method of the composite material fireproof board is also disclosed. The present invention adopts the inorganic material as a major material of the board, which has good fireproof performance and waterproof performance, is capable of phase-change energy storage, and achieves high stability and strength. The organic frame disposed on the periphery of the inorganic material enables the board to have good processability. Providing fixed grooves and through holes on the frame can achieve a firmer combination between the fireproof material and the frame, and prevent the frame from stripping off or cracking. Covering a reinforcement mesh layer and a thin-bedded inorganic material above and below the middle layer can increase the tenacity and strength, prevent cracking at the joint, and achieve a fireproof effect.

The present disclosure relates to an engineered flooring product suitable for indoor or outdoor flooring applications, and a method of manufacturing thereof. The engineered flooring product comprises a core layer, the core layer comprising: (i) a hydrate compound comprising magnesium hydroxide and magnesium chloride; (ii) one or more hydrate compounds each comprising magnesium hydroxide and magnesium sulfate; and (iii) one or more stabilizing agents. The hydrate compounds are derived at least in part from magnesium oxide. The core layer has a composition that is free of PVC and other plastic-based materials and is selected to provide one or more desired physical properties such as, but not limited to, a desired degree of water resistance, durability, and thermal expansion and contraction. The core layer preferably has a composition that provides a thermal expansion coefficient equivalent to or comparable to concrete.

A method for preparing a ceramic composition while simultaneously reducing the quantity of carbon dioxide from municipal solid waste that would discharge into environment includes decomposing the municipal solid waste to generate a carbon dioxide-water vapor mixture, providing a matrix, the matrix containing a reactant; and contacting the carbon dioxide-water vapor mixture with the matrix to promote a reaction between the carbon dioxide of the carbon dioxide-water vapor mixture and the reactant of the matrix. The reaction forms a product, thereby producing the ceramic composition.

A method for preparing a ceramic composition while simultaneously reducing the quantity of carbon dioxide from municipal solid waste that would discharge into environment includes decomposing the municipal solid waste to generate a carbon dioxide-water vapor mixture, providing a matrix, the matrix containing a reactant; and contacting the carbon dioxide-water vapor mixture with the matrix to promote a reaction between the carbon dioxide of the carbon dioxide-water vapor mixture and the reactant of the matrix. The reaction forms a product, thereby producing the ceramic composition.

According to some embodiments, a curable mixture configured to set in the presence of water, wherein the mixture comprises magnesium oxide, a primary cementitious component and at least one accelerant. A proportion by weight of the primary cementitious component is 80% to 120% of a proportion of magnesium oxide by weight.

A synthetic stone for decorative purposes, countertops, flooring, and the like comprises, as a major component, magnesium compounds, and includes diamond or quartz sand. It is formed via a vibro-compression process that is conducted under vacuum and at ambient temperature. The synthetic stone slab is very hard, waterproof, mildew-proof, insect-proof, environmentally friendly, and low cost.

A synthetic stone for decorative purposes, countertops, flooring, and the like comprises, as a major component, magnesium compounds, and includes diamond or quartz sand. It is formed via a vibro-compression process that is conducted under vacuum and at ambient temperature. The synthetic stone slab is very hard, waterproof, mildew-proof, insect-proof, environmentally friendly, and low cost.

The present invention provides an apparatus and a method for producing cement through flue gas desulfurization, and specifically provides an apparatus and a method for simultaneously producing magnesium sulfate cement during a magnesium oxide based flue gas desulfurization process. The apparatus of the present invention includes a flue gas desulfurization equipment, a concentration equipment, a crystallization equipment, a centrifugation equipment, a drying equipment, a waste ash supplying equipment, a slag material supplying equipment, a mixing equipment, etc. By adopting the apparatus and method of the present invention, the problems in the present conventional cement production such as high energy cost, severe damage to the environment and so on can be solved, and the problems like high production cost of ordinary magnesium sulfate cement and high transportation cost of supplies thereby causing incapability in a large scale market spreading and application can also be solved.

The present invention provides an apparatus and a method for producing cement through flue gas desulfurization, and specifically provides an apparatus and a method for simultaneously producing magnesium sulfate cement during a magnesium oxide based flue gas desulfurization process. The apparatus of the present invention includes a flue gas desulfurization equipment, a concentration equipment, a crystallization equipment, a centrifugation equipment, a drying equipment, a waste ash supplying equipment, a slag material supplying equipment, a mixing equipment, etc. By adopting the apparatus and method of the present invention, the problems in the present conventional cement production such as high energy cost, severe damage to the environment and so on can be solved, and the problems like high production cost of ordinary magnesium sulfate cement and high transportation cost of supplies thereby causing incapability in a large scale market spreading and application can also be solved.

According to some embodiments, a curable mixture configured to set in the presence of water, wherein the mixture comprises magnesium oxide, a primary cementitious component (e.g., slag cement) and at least one accelerant. A proportion by weight of the primary cementitious component is 80% to 120% of a proportion of magnesium oxide by weight.