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No. Patent Title Patent No. Application Date
(Year/Month/Day)
Type Date of Authorized Announcement
(Year/Month/Day)
1 Method for removing sulfate radical from underground brine ZL02138308.1 2002/9/20 Invention 2005/3/23
2 Method for producing wet process phosphoric acid from low-grade phosphate rock ZL200510022547.2 2005/12/23 Invention 2007/5/23
3 Method for two-stage concentration of wet process phosphoric acid ZL200610039937.5 2006/4/27 Invention 2009/4/22
4 Two-effect evaporation process of wet process phosphoric acid ZL200810236248.2 2008/11/27 Invention 2011/4/13
5 Method for producing high-purity concentrated hydrochloric acid from hydrogen chloride gas containing chlorosilane ZL200910183870.6 2009/8/3 Invention 2011/1/26
6 Method and unit for preparing raw material needed for preparation of acetic anhydride by carbonylation ZL200910035876.9 2009/9/28 Invention 2012/11/28
7 Method for treating iodomethane-containing combustible gas emitted to the flare system from oxo-synthesis unit ZL200910232255.x 2009/12/10 Invention 2012/7/4
8 Tube heating furnace for oxygen-deficient combustion of high temperature air ZL201020578850.7 2010/10/27 Utility model 2011/7/27
9 Flexibly-adjusted energy-saving 4-in-1 reforming furnace ZL201020578970.7 2010/10/27 Utility model 2011/6/1
10 Horizontal half cross-flow packed desulfurizing scrubber ZL201020672451.7 2010/12/21 Utility model 2011/8/3
11 Boiling calciner  ZL201120204722.0 2011/6/17 Utility model 2012/3/14
12 Column for washing and purifying sulfur-containing tail gas by the ammonia process ZL201120322549.4 2011/8/31 Utility model 2012/5/23
13 Yellow phosphorus tail gas waste heat recovery system with a stand-alone combustion chamber  ZL201120414865.4 2011/10/27 Utility model 2012/7/4
14 New efficient chemical incinerator ZL201120414860.1 2011/10/27 Utility model 2012/6/20
15 High-efficiency gas-liquid self-mixing reactor ZL201110405030.7 2011/12/8 Invention 2014/9/24
16 Slag waste heat recovery and slag dust classification system in acid production by pyrites ZL201220339112.6 2012/7/12 Utility model 2013/1/16
17 New yellow phosphorus storage and metering device ZL201220553152.0 2012/10/26 Utility model 2013/8/28
18 Unit for washing and purifying sulfur-containing tail gas by the ammonia process ZL 201220556039.8 2012/10/26 Utility model 2013/4/10
19 Method for deeply purifying yellow phosphorus tail gas by oxidation and alkali washing ZL201210417461.x 2012/10/26 Invention 2015/10/28
20 System for deeply purifying yellow phosphorus tail gas by oxidation and alkali washing ZL201220553135.7 2012/10/26 Utility model 2013/8/28
21 Automatic packaging system for solid with poor fluidity ZL201220547672.0 2012/10/24 Utility model 2013/3/27
22 Flame cutting device for thinning thick plate groove ZL201220541971.3 2012/10/22 Utility model 2013/4/10
23 Production unit for continuous phosphorus filtration by the press filtering method ZL201320004540.8 2013/1/6 Utility model 2013/6/26
24 Silicon powder drying system ZL201320004330.9 2013/1/6 Utility model 2013/6/26
25 Mixer  ZL201320234970.9 2013/5/3 Utility model 2013/9/25
26 Method for phosphoric acid defluorination through tower-type air stripping 201310205676.x 2013/5/27 Invention 2016/6/22
27 Method and unit for treating sulfuric acid tail gas sulfur dioxide 201310235223.1 2013/6/14 Invention 2015/2/11
28 Unit for treating sulfuric acid tail gas sulfur dioxide 2013203399372 2013/6/14 Utility model 2013/12/4
29 Combined unit for lightening residual oil/medium and low temperature coal tar 201320369968.2 2013/6/25 Utility model 2013/12/25
30 Combined process method for lightening residual oil/medium and low temperature coal tar 201310260514.6 2013/6/25 Invention 2015/10/21
31 Unit for producing high-quality coke from residual oil/medium and low temperature coal tar 201320368062.9 2013/6/25 Utility model 2013/12/25
32 Process method for producing high-quality coke from residual oil/medium and low temperature coal tar 201310256266.8 2013/6/25 Invention 2015/4/15
33 Unit for producing high-grade lubricant base oil through hydrogenation of hydrocracking tail oil 201320373631.9 2013/6/25 Utility model 2013/12/25
34 Method for producing high-grade lubricant base oil through hydrogenation of hydrocracking tail oil 201310257219.5 2013/6/25 Invention 2015/10/21
35 Combined unit for producing high-grade lubricant base oil through hydrogenation of hydrocracking tail oil 201320370624.3 2013/6/25 Utility model 2013/12/25
36 Combined method for producing high-grade lubricant base oil through hydrogenation of hydrocracking tail oil 201310260515.0 2013/6/25 Invention 2015/10/28
37 Unit for  producing gasoline and diesel through direct hydrogenation of medium and low temperature coal tar 201320368087.9 2013/6/25 Utility model 2013/12/25
38 Method for  producing gasoline and diesel through direct hydrogenation of medium and low temperature coal tar 201310256855.6 2013/6/25 Invention 2015/7/22
39 Combined unit for heavy oil hydrotreating-catalytic cracking-PSA purification 201320374004.7 2013/6/25 Utility model 2013/12/25
40 Combined process method for heavy oil hydrotreating-catalytic cracking-PSA purification 201310256196.6 2013/6/25 Invention 2015/4/15
41 Method for efficient recovery of sulfur from hydrogen sulfide-containing waste gas 201310284844.9 2013/7/8 Invention 2016/6/15
42 Unit for efficient recovery of sulfur from hydrogen sulfide-containing waste gas 201320405152.0 2013/7/8 Utility model 2013/12/25
43 Unit for treating sulfur recovery tail gas  201320427687.8 2013/7/18 Utility model 2014/2/26
44 Reusable spreader system for integral lifting of slender and thin-walled equipment 201320453694.5 2013/7/26 Utility model 2014/1/8
45 Reusable mounted box-shaped tailing spreader system 201310331096.5 2013/8/1 Invention 2015/1/14
46 Cyclone separation system 201320466573.4 2013/8/1 Utility model 2014/1/8
47 System for oxidization of mother liquor for treatment of industrial tail gas of sulfuric acid 201320497580.0 2013/8/14 Utility model 2014/2/26
48 System for efficient recycling of cyclohexanone waste lye 201320538944.5 2013/8/31 Utility model 2014/3/12
49 Method for overturning hoisting of large-diameter overweight gland 201310431526.0 2013/9/22 Invention 2015/2/11
50 Spreader system for overturning hoisting of large-diameter overweight gland 201320583810.5 2013/9/22 Utility model 2014/3/12
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