US 2021/0032161 A1

Cement manufacture using latex residual material

(22) 31.07.2019

(43) 04.02.2021

(57) A method of recycling latex paint residual material, such as unused latex paint, includes the step of mixing with cement precursor material, thermally treating the mixture in a kiln to produce clinker, and mixing the clinker with gypsum to product cement. The cement may be used in conventional ways, such as to produce concrete.

(71) KBL Environmental (AB) Ltd., Leduc (CA)

Issue 10/2019 WO 2019/142387 A1

Method for treating sludge and cement manufacturing system

(22) 27.08.2018 (43) 25.07.2019 (57) This method for treating sludge comprises: mixing dewatered sludge and cement raw material to make a mixture; drying the mixture with a dryer which brings the...

Issue 8/2021 US 2021/0292229 A1

Apparatus and method for treating gypsum

(22) 14.07.2017 (43) 23.09.2021 (57) A fluidized-bed-type apparatus and method for treating gypsum, which activates or improves fluidity of gypsum powder to promote an effect of treatment of gypsum,...

Issue 7/2022 US 2022/0235933 A1

Method and apparatus for treating combustible substance

(22) 06.08.2019 (43) 28.07.2022 (57) A treatment method and apparatus is provided to effectively use a combustible waste such as waste plastic, waste tires, rice husk, wood shavings, PKS, RDF and...

Issue 1/2022 WO 2021/204725 A1

Method for calcining lime or dolomite and annular shaft furnace used

(22) 02.04.2021 (43) 14.10.2021 (57) Method for calcination in an annular shaft furnace comprising a supply of material to be calcined at the top of an annular space (3) of the furnace into which the...

Issue 9/2018 US 2018/0148374 A1

Method and device for treating and utilizing bypass dusts

(22) 20.05.2016 (43) 31.05.2018 (57) A method for treating and utilizing bypass dusts from a cement production process involves a) contacting the bypass dust with an aqueous phase and mixing the same...

ZKG 3/2021