CN101337658A - Method for synthesizing sodium percarbonate of high stability - Google Patents
Method for synthesizing sodium percarbonate of high stability Download PDFInfo
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- CN101337658A CN101337658A CNA2008101410224A CN200810141022A CN101337658A CN 101337658 A CN101337658 A CN 101337658A CN A2008101410224 A CNA2008101410224 A CN A2008101410224A CN 200810141022 A CN200810141022 A CN 200810141022A CN 101337658 A CN101337658 A CN 101337658A
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- production method
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- synthesizing high
- hydrogen peroxide
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- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title abstract description 8
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 title abstract 4
- 229940045872 sodium percarbonate Drugs 0.000 title abstract 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 14
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 13
- 235000017550 sodium carbonate Nutrition 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000003381 stabilizer Substances 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 8
- 150000002894 organic compounds Chemical class 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical group [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 5
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 5
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 5
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical group OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 230000036571 hydration Effects 0.000 claims description 4
- 238000006703 hydration reaction Methods 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 235000019359 magnesium stearate Nutrition 0.000 claims description 4
- -1 polyoxyethylene Polymers 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000005185 salting out Methods 0.000 claims description 4
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000005352 clarification Methods 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 239000012047 saturated solution Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims 2
- 238000001816 cooling Methods 0.000 claims 1
- 230000029087 digestion Effects 0.000 claims 1
- 238000009826 distribution Methods 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000007670 refining Methods 0.000 abstract description 3
- 239000007844 bleaching agent Substances 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract 2
- 239000012452 mother liquor Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000001447 alkali salts Chemical class 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
A production method for synthesizing sodium percarbonate of high stability is a technology for producing an oxygen containing bleaching agent, and overcomes the shortcoming existing in other methods. The method comprises the following procedures: the first step, refining raw materials; the second step, preparing hydrogen peroxide; the third step, reacting and crystallizing; the forth step, centrifuging; the fifth step, coating with films and baking; the sixth step, packaging finished products; and measuring and separately packaging baked and qualified sodium percarbonate according to requirements of a user. The sodium percarbonate of high stability has main properties as follows: the content of active oxygen is 13.0 to 14.2 percent; the bulk density is 900 to 1100g/L; the moisture content is less than or equal to 2.0 percent; iron is less than or equal to 15ppm; the thermal stability is higher than or equal to 94.0%; and the moisture stability is higher than or equal to 65.0%.
Description
One, technical field:
The present invention relates to a kind of production technology of oxygen-bearing bleaching agent, especially the production method of synthesizing high-stability SPC-D.
Two, background technology:
In recent years, along with people to the continuous intensification of SPC-D awareness and the expansion day by day of SPC-D range of application, research and development and produce are all developing rapidly.Particularly SPC-D shows powerful growth momentum in the application of detergent applications.But the wet less stable of SPC-D, when being applied to the family type washing composition, the moisture content in the washing composition and other washing auxiliary detergent can promote its decomposition, cause the product stock time shorter, have limited its application.So, select suitable stabilising method, improve the wet stability of product, keeping high active o content is the problem that expectation solves.
Three, summary of the invention:
The production method that the purpose of this invention is to provide the synthesizing high-stability SPC-D, it has overcome the shortcoming that other method exists.The object of the present invention is achieved like this, it is made by following operation, the first step feed purification: industrial sodium carbonate is dissolved in the dissolution kettle that fills deionized water, keep the hydration solvent temperature at 35-36 ℃, make carbonate content and be 31% saturated solution, internal stabilizer (inclined to one side silicon of five water and sal epsom mass ratio are 8: the 3) complex-precipitation that adds yellow soda ash total amount 2%-3% simultaneously goes out impurity, and clear liquor is standby; The hydrogen peroxide preparation of second step: (hydrogen peroxide and yellow soda ash mass ratio are 1.6-1.7: 1) in the header tank that the hydrogen peroxide adding band with a certain amount of 27.5% stirs, the internal stabilizer (ATMP and EDTA mass ratio are 4: 1) that under agitation adds hydrogen peroxide total amount 0.5%-1%, the crystalline substance that adds hydrogen peroxide total amount 0.6%-0.8% is practised morphology Control agent Sodium hexametaphosphate 99, and the back that stirs is standby; The three-step reaction crystallization: a certain amount of mother liquor adds in the reactor, opens and stirs and ice maker, with hydrogen peroxide and refining Na
2CO
3Solution stream simultaneously is added in the reactor, control the adding speed of two materials, control reaction temperature is between 15--30 ℃, progressively improving mixing speed along with the increase gradually of reaction mass is 30--100r/min, to control the product particle degree in 10-80 order scope, after reaction finishes, add the NaCL salting-out agent of yellow soda ash total amount 25%, cool to 10-15 ℃ again and stir 30min; The 4th step is centrifugal: the SPC-D product that reactive crystallization is finished is put in the whizzer, gets rid of 30 minutes, removes mother liquor, and mother liquor flows in the settling bath static, and part is delivered to the utilization of reactor internal recycle, and remaining evaporation concentration is to reclaim alkali salt; The 5th step coating oven dry: the SPC-D after the centrifuge dehydration is delivered in the vibrating bed dryer, control feeding speed and bake out temperature 80-100 ℃, the organic compound film former (mass ratio of polyoxyethylene glycol: Magnesium Stearate: OP-15 is 3: 2: 1, and organic compound film former is 0.5%-1% with the butt ratio of SPC-D) that sprays into aqueous solution solid content 5%-10% carries out coating, moisture is removed in oven dry; The 6th step: finished product packing: dry after qualified SPC-D by customer requirements measure, packing.
The salient features of the high stability SPC-D of gained of the present invention: active o content 13.0%-14.2%; Bulk density 900--1100g/L; Moisture≤2.0%; Iron≤15ppm; Thermostability 〉=94.0%; Wet stability 〉=65.0%.
Four, embodiment:
Further specify the present invention in conjunction with following embodiment.
(1) example 1
1, proportioning raw materials:
(1) industrial sodium carbonate: 500 kilograms
(2) 27.5% hydrogen peroxide: 850 kilograms
(3) industrial sodium-chlor: 125 kilograms
(4) internal stabilizer: the 1. inclined to one side silicon of five water: 10.5 kilograms; 2. sal epsom: 4 kilograms; 3. ATMP:6.5 kilogram; 4. EDTA:1.6 kilogram
(5) brilliant habit morphology Control agent: 6 kilograms of Sodium hexametaphosphate 99s
(6) organic compound film former: 1. polyoxyethylene glycol: 2.5 kilograms; 2. Magnesium Stearate: 1.65 kilograms; 3. OP-15:0.85 kilogram; Three kinds of membrane-forming agents drop in 60 kg of water successively, and stirring gets final product.
2, production technique:
(1) molten alkali: at 2M
3Add 1100 kilograms of deionized waters in the stainless steel still, when being heated to 32 ℃, start stirring, drop into 10.5 kilograms of the inclined to one side silicon of five water, 4 kilograms in sal epsom, slowly drop into industrial sodium carbonate and open cooling water temperature simultaneously then, with holding temperature between 35-36 ℃, after the yellow soda ash hydration has been dissolved, stop stirring, it is standby in other stainless steel still that the clarification back is extracted supernatant liquor out.
(2) hydrogen peroxide preparation: in the header tank that the 1000L band stirs, 850 kilograms in the hydrogen peroxide of adding 27.5% starts stirring, adds internal stabilizer ATMP6.5 kilogram, EDTA1.6 kilogram, adds brilliant 6 kilograms of the morphology Control agent Sodium hexametaphosphate 99s of practising, and the back that stirs is standby.
(3) reactive crystallization: the 500L mother liquor is joined 3M
3In the stainless steel cauldron, open and stir and ice maker, hydrogen peroxide and refining Na
2CO
3Solution stream simultaneously is added in the reactor, control the adding speed of two materials, control reaction temperature is between 15--30 ℃, progressively improving mixing speed along with the increase gradually of reaction mass is 30--100r/min, to control the product particle degree in 10-80 order scope, reaction adds 125 kilograms of NaCL salting-out agent after finishing, and cools to 10-15 ℃ again and stirs 30min.
(4) centrifugal: the SPC-D product that reactive crystallization is finished is put in the whizzer, gets rid of 30 minutes, removes mother liquor, and mother liquor flows in the settling bath static, and part is delivered to the utilization of reactor internal recycle, and remaining evaporation concentration is to reclaim alkali salt.
(5) coating oven dry: the SPC-D after the centrifuge dehydration is delivered to the vibrating bed dryer, and control feeding speed and bake out temperature 80-100 ℃ spray into simultaneously that 65 kilograms of coating liquids that contain 5 kilograms of organic compound film formers carry out coating, moisture is removed in oven dry.
(6) finished product packing: dry after qualified SPC-D by customer requirements measure, packing.
The prepared high stability SPC-D of the present invention, its salient features is after testing: active o content 14.1%; Bulk density 980g/L; Moisture is 1.5%; Iron level 10ppm; Thermostability 96.0%; Wet stability 67.0%.
(2) example 2
1, proportioning raw materials:
(1) industrial sodium carbonate: 500 kilograms
(2) 27.5% hydrogen peroxide: 800 kilograms
(3) industrial sodium-chlor: 125 kilograms
(4) internal stabilizer: the 1. inclined to one side silicon of five water: 7.5 kilograms; 2. sal epsom: 2.8 kilograms; 3. ATMP:5 kilogram; 4. EDTA:1.25 kilogram
(5) brilliant habit morphology Control agent: 5.5 kilograms of Sodium hexametaphosphate 99s
(6) organic compound film former: 1. polyoxyethylene glycol: 2.4 kilograms; 2. Magnesium Stearate: 1.6 kilograms; 3. OP-15:0.8 kilogram; Three kinds of membrane-forming agents drop in 60 kg of water successively, and stirring gets final product.
2, production technique:
Identical with example 1.
By the prepared high stability SPC-D of the present invention, yield reduces by 4%, and product performance are after testing: active o content 13.9%; Bulk density 970g/L; Moisture is 1.6%; Iron level 11ppm; Thermostability 95.0%; Wet stability 68.0%.
Claims (9)
1, the production method of synthesizing high-stability SPC-D is characterized in that: add deionized water and internal stabilizer in the molten alkali still of stainless steel, keep constant temperature, slowly drop into yellow soda ash, after the yellow soda ash hydration has been dissolved, stop stirring, it is standby in other stainless steel still that the clarification back is extracted supernatant liquor out; In the hydrogen peroxide Preparation tank, also add internal stabilizer and also add the brilliant morphology Control agent of practising simultaneously; The mass ratio of yellow soda ash and 27.5% hydrogen peroxide is normal-temperature reaction crystallization in 1: 1.6～1: 1.7 in stainless steel cauldron, control the particulate size-grade distribution by the control rotating speed, reaction finishes to add salting-out agent, the cooling ageing, centrifuge dehydration, product under 80-100 ℃ of condition, sprays into organic compound film former simultaneously and carries out coating, oven dry removal moisture in vibrating bed, and metering, packing promptly get the high stability SPC-D; Product active o content 13.0%-14.2%; Bulk density 900--1100g/L; Moisture≤2.0%; Iron≤15ppm; Thermostability 〉=94.0%; Wet stability 〉=65.0%.
2, a kind of production method of the SPC-D of synthesizing high-stability according to claim 1 is characterized in that: the internal stabilizer in the molten alkali still of stainless steel is inclined to one side silicon of five water and sal epsom, and it forms mass ratio is 8: 3, and consumption is the 2%-3% of yellow soda ash quality.
3, a kind of production method of the SPC-D of synthesizing high-stability according to claim 1 is characterized in that: the molten alkali of hydration must remain between 35-36 ℃, is made into 31% saturated solution.
4, a kind of production method of the SPC-D of synthesizing high-stability according to claim 1 is characterized in that: the internal stabilizer that adds in the hydrogen peroxide Preparation tank is ATMP and EDTA, and it forms mass ratio is 4: 1, and consumption is hydrogen peroxide total amount 0.5%-1%; It is Sodium hexametaphosphate 99 that the crystalline substance that adds is practised the morphology Control agent, and consumption is hydrogen peroxide total amount 0.6%-0.8%'s.
5, a kind of production method of the SPC-D of synthesizing high-stability according to claim 1 is characterized in that: temperature of reaction is 15--30 ℃, and the ageing temperature is 10-15 ℃, and digestion time is 30min.
6, a kind of production method of the SPC-D of synthesizing high-stability according to claim 1 is characterized in that: during reactive crystallization, along with the increase gradually of reaction mass need progressively improve mixing speed 30--100r/min, with control product particle degree in 10-80 order scope.
7, a kind of production method of the SPC-D of synthesizing high-stability according to claim 1 is characterized in that: the salting-out agent of adding are industrial sodium-chlor, and consumption is 25% of a yellow soda ash total amount.
8, a kind of production method of the SPC-D of synthesizing high-stability according to claim 1 is characterized in that: controlled temperature is 80-100 ℃ when coating, oven dry.
9, a kind of production method of the SPC-D of synthesizing high-stability according to claim 1, it is characterized in that: organic compound film former is polyoxyethylene glycol, Magnesium Stearate, OP-15, it forms mass ratio is 3: 2: 1, the solid content that is made into the aqueous solution is 5%-10%, and consumption is for generating the 0.5%-1% of SPC-D siccative quality.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141022A CN100588607C (en) | 2008-08-14 | 2008-08-14 | The production method of synthesizing high-stability SPC-D |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141022A CN100588607C (en) | 2008-08-14 | 2008-08-14 | The production method of synthesizing high-stability SPC-D |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101337658A true CN101337658A (en) | 2009-01-07 |
| CN100588607C CN100588607C (en) | 2010-02-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2361604A1 (en) * | 2010-02-19 | 2011-08-31 | Hoyu Co., Ltd. | Powder hair dye composition based on sodium percarbonate and package therefor |
| CN102839533A (en) * | 2012-09-15 | 2012-12-26 | 濮阳宏业汇龙化工有限公司 | Short-process pre-treatment scouring agent for textile and preparation method thereof |
| CN105016307A (en) * | 2015-06-30 | 2015-11-04 | 湖州周吴鼎盛化工有限公司 | Preparation method of stable quick-dissolving sodium percarbonate |
| CN104129760B (en) * | 2014-07-30 | 2016-06-29 | 濮阳宏业环保新材料股份有限公司 | A kind of low-density SODIUM PERCARBONATE production system and technique |
| CN108483406A (en) * | 2018-04-19 | 2018-09-04 | 周大凯 | A kind of method that nanometer highly reactive form of oxygen stable sodium percarbonate is prepared under room temperature |
| CN117208855A (en) * | 2023-09-06 | 2023-12-12 | 浙江金科日化新材料股份有限公司 | Light sodium percarbonate and preparation method thereof |
-
2008
- 2008-08-14 CN CN200810141022A patent/CN100588607C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2361604A1 (en) * | 2010-02-19 | 2011-08-31 | Hoyu Co., Ltd. | Powder hair dye composition based on sodium percarbonate and package therefor |
| CN102839533A (en) * | 2012-09-15 | 2012-12-26 | 濮阳宏业汇龙化工有限公司 | Short-process pre-treatment scouring agent for textile and preparation method thereof |
| CN104129760B (en) * | 2014-07-30 | 2016-06-29 | 濮阳宏业环保新材料股份有限公司 | A kind of low-density SODIUM PERCARBONATE production system and technique |
| CN105016307A (en) * | 2015-06-30 | 2015-11-04 | 湖州周吴鼎盛化工有限公司 | Preparation method of stable quick-dissolving sodium percarbonate |
| CN108483406A (en) * | 2018-04-19 | 2018-09-04 | 周大凯 | A kind of method that nanometer highly reactive form of oxygen stable sodium percarbonate is prepared under room temperature |
| CN117208855A (en) * | 2023-09-06 | 2023-12-12 | 浙江金科日化新材料股份有限公司 | Light sodium percarbonate and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100588607C (en) | 2010-02-10 |
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Owner name: PUYANG HONGYE HUILONG CHEMICAL INDUSTRY CO., LTD. Free format text: FORMER OWNER: HENAN HONGYE CHEMICAL INDUSTRY CO., LTD. Effective date: 20091023 |
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Address after: Nanle County of Puyang City, the 457400 industrial agglomeration area in Henan province people's Road North Patentee after: PUYANG HONGYE ENVIRONMENTAL PROTECTION NEW MATERIAL CO., LTD. Address before: North South County in Henan province 457400 two km Puyang Hongye Chemical Co. Ltd. Huilong Patentee before: Puyang Hongye Huilong Chemical Co., Ltd. |
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Address after: 457400 East Road, 600m north of the intersection of national highway 106 and Minsheng Road, Nanle County, Puyang City, Henan Province Patentee after: Puyang Shengkai environmental protection new material technology Co.,Ltd. Address before: 457400 north of Minsheng Road, Nanle County, Puyang City, Henan Province Patentee before: PUYANG HONGYE ENVIRONMENTAL PROTECTION NEW MATERIAL Co.,Ltd. |