Shifa WEI

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Chengdu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Device and process for fluorine recovery from smoke after phosphoru...
- Patent number 10,232,312
- Issue date Mar 19, 2019
- SICHUAN KO CHANG TECHNOLOGY CO., LTD.
- Yonghe Hou
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Phosphorus absorption by hydration and fluorine recovery for fume e...
- Patent number 10,023,463
- Issue date Jul 17, 2018
- SICHUAN KO CHANG TECHNOLOGY CO., LTD.
- Yonghe Hou
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for mass production of phosphoric acid with rotary kiln
- Patent number 10,005,669
- Issue date Jun 26, 2018
- SICHUAN KO CHANG TECHNOLOGY CO., LTD.
- Yonghe Hou
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Rotary kiln for reducing phosphate ore in kiln phosphoric acid proc...
- Patent number 9,982,947
- Issue date May 29, 2018
- SICHUAN KO CHANG TECHNOLOGY CO., LTD.
- Yonghe Hou
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Apparatus for preparing phosphoric acid from fume exiting the kiln...
- Patent number 9,776,868
- Issue date Oct 3, 2017
- SICHUAN KO CHANG TECHNOLOGY CO., LTD.
- Yonghe Hou
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MASS PRODUCTION OF PHOSPHORIC ACID WITH ROTARY KILN
- Publication number 20160152472
- Publication date Jun 2, 2016
- SICHUAN KO CHANG TECHNOLOGY CO., LTD
- Yonghe HOU
- C01 - INORGANIC CHEMISTRY
Information Patent Application
APPARATUS FOR PREPARING PHOSPHORIC ACID FROM FUME EXITING THE KILN...
- Publication number 20160152474
- Publication date Jun 2, 2016
- SICHUAN KO CHANG TECHNOLOGY CO., LTD
- Yonghe HOU
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PHOSPHORUS ABSORPTION BY HYDRATION AND FLUORINE RECOVERY FOR FUME E...
- Publication number 20160152475
- Publication date Jun 2, 2016
- SICHUAN KO CHANG TECHNOLOGY CO., LTD
- Yonghe HOU
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
ROTARY KILN FOR REDUCING PHOSPHATE ORE IN KILN PHOSPHORIC ACID PROC...
- Publication number 20160153717
- Publication date Jun 2, 2016
- SICHUAN KO CHANG TECHNOLOGY CO., LTD
- Yonghe HOU
- C01 - INORGANIC CHEMISTRY
Information Patent Application
DEVICE AND PROCESS FOR FLUORINE RECOVERY FROM SMOKE AFTER PHOSPHORU...
- Publication number 20160082388
- Publication date Mar 24, 2016
- SICHUAN KO CHANG TECHNOLOGY CO., LTD
- Yonghe HOU
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL