Kunming University of Science and Technology

Yixing Ma

Ping Ning

Kai Li

Senlin Tian

Xin Sun

Xin Song

Yingjie Zhang

Fei Wang

Xueqian Wang

Chi Wang

Langlang Wang

Yaxi Zhang

Rui Cao

Peng Chen

Qian Li

A gas-solid separating method and a gas-solid separating system for simple substance sulphur in sulphur-containing exhaust are provided. The gas-solid separating method for simple substance sulphur in sulphur-containing exhaust comprises the following steps: first, cooling sulphur-containing exhaust at an extremely high speed; then, separating dust; finally, recycling a heavy liquid phase solvent and simple substance sulphur. The system comprises a quick cooling system, a low-temperature washing and purifying system, a light liquid phase and heavy liquid phase separating system, a washing liquid recycling system and a simple substance sulphur recycling system.

Gas-solid separating method and system for simple substance sulphur in sulphur-containing exhaust

A method for production of ammonium phosphate from phosphate rock slurry. The method includes: introducing flue gas containing SOinto a phosphate rock slurry, to yield an absorption solution; evaporating waste ammonia water containing 10-20 wt. % ammonia to yield ammonia gas; introducing the ammonia gas into the absorption solution at a temperature of 110-135&#xb0; C. until a neutralization degree of the absorption solution reaches 1.5-1.6, thus yielding an ammonium phosphate solution and calcium sulfate; separating the calcium sulfate from the ammonium phosphate solution; and introducing the ammonium phosphate solution to a granulator for granulation to yield ammonium phosphate granules; drying and sieving the ammonium phosphate granules, thereby yielding ammonium phosphate.

Method for production of ammonium phosphate from phosphate rock slurry

The present disclosure relates to the technical field of industrial waste gas purification, in particular to a core-shell structured catalyst, a preparation method and use thereof. The present disclosure provides a core-shell structured catalyst including a metal oxide-molecular sieve as a core and porous silica (SiO) as a shell, where the metal oxide-molecular sieve includes a molecular sieve and a metal oxide loaded on the molecular sieve, the metal oxide includes an oxide of a first metal and an oxide of a second metal, the first metal is Fe, Cu, Ti, Ni or Mn, and the second metal is Ce or La. The core-shell structured catalyst of the present disclosure can enable effective removal of HCN and AsHat the same time with a stable effect, and no secondary pollution.

Core-shell structured catalyst, preparation method thereof and method for treating industrial tail gas

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Kunming, China

Yixing Ma