Yangzhou Princechem Co., Ltd.
 

Patent number / application number

Patent name

Authorization time

Stage

20111002013.2

Thionyl chloride Chlorination tail gas treatment method

 

Qualified first instance

2009100954752

N- methyl formyl aniline preparation method

 

Qualified first instance

200710075875

3- alkoxy -1- chloro propane and preparation method

 

Qualified first instance

2006100972653

Methoxy methylene malonic acid two ester preparation method

 

Qualified first instance

201010101735.5

Multiple fluoroalkyl methacrylate ester preparation method

 

Substantive examination

200910153013.1

2- ( 2- Chloroethoxy ) ethanol preparation method

 

Substantive examination

200910153011.2

2- ethyl methyl ether preparation method

 

Substantive examination

ZL20090153012.7

2,2 ' - two benzothiazolyl sulfone preparation method

2011.06.01

Patent of invention

ZL200710157165.X

4- alkoxy -1- butyl chloride preparation method

2010.12.29

Patent of invention

ZL200710070038.6

Thionyl chloride Chlorination tail gas treatment method

2010.09.22

Patent of invention

ZL200710192563.0

Hydrogen chloride and sulfur dioxide emission of complete sets of processing equipment

2008.11.12

Utility model patent

 
     
     
 
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