CN103450054B - The preparation method of BDO gemini di-sec-octyl succinate sodium sulfonate - Google Patents

The preparation method of BDO gemini di-sec-octyl succinate sodium sulfonate Download PDF

Info

Publication number
CN103450054B
CN103450054B CN201310375651.4A CN201310375651A CN103450054B CN 103450054 B CN103450054 B CN 103450054B CN 201310375651 A CN201310375651 A CN 201310375651A CN 103450054 B CN103450054 B CN 103450054B
Authority
CN
China
Prior art keywords
sec
bdo
octyl
gemini
double
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201310375651.4A
Other languages
Chinese (zh)
Other versions
CN103450054A (en
Inventor
华平
李建华
喻红梅
施磊
鞠剑峰
戴宝江
方略韬
张海滨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANTONG HONGSHEN CHEMICAL CO Ltd
Original Assignee
Nantong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nantong University filed Critical Nantong University
Priority to CN201310375651.4A priority Critical patent/CN103450054B/en
Priority to CN201610835064.2A priority patent/CN106431996B/en
Priority to CN201610840146.6A priority patent/CN106431997B/en
Publication of CN103450054A publication Critical patent/CN103450054A/en
Application granted granted Critical
Publication of CN103450054B publication Critical patent/CN103450054B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/32Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of salts of sulfonic acids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/02Sulfur, selenium or tellurium; Compounds thereof
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00Preparation of carboxylic acid esters
    • C07C67/08Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00Use of substances as emulsifying, wetting, dispersing, or foam-producing agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

The invention discloses a kind of 1, the preparation method of 4 butanediol gemini di-sec-octyl succinate sodium sulfonate, comprise the following steps: maleic anhydride and 1, two hydroxy combinings on 4 butanediols carry out single-esterification and generate 1, the double maleic mono-ester of 4 butanediols, 1, the double maleic mono-ester of 4 butanediols carries out double esterification reaction with sec-octyl alcohol again and obtains 1, the double maleic acid di-sec-octyl of 4 butanediols, the double maleic acid di-sec-octyl of last Isosorbide-5-Nitrae butanediol carries out conjugate addition sulfonating reaction with sodium sulfite again and prepares product;Wherein, the catalyst of double esterification reaction is carbon-based solid acid catalyst.The present invention easily operates, method easy, the feature of environmental protection is good.

Description

The preparation method of BDO gemini di-sec-octyl succinate sodium sulfonate
Technical field
The present invention relates to the preparation method of a kind of BDO gemini di-sec-octyl succinate sodium sulfonate.
Background technology
BDO gemini di-sec-octyl succinate sodium sulfonate is to design strand surfactant sulfo group in the molecule Succinic acid Zhong Xin ester sodium salt, as the ion head of parents' molecule, is formed by connecting by chemical bond through linking group BDO Gemini surface active agent.Its surface activity, in addition to all advantages with strand surfactant, also has lower surface The most higher surface activity of tension force.Owing to its special structural table reveals the performance of uniqueness, thus it is more widely applied.With Isosorbide-5-Nitrae- Butanediol, maleic anhydride and sec-octyl alcohol are that BDO gemini di-sec-octyl succinate sodium sulfonate prepared by raw material, this product Report without document before items.
Summary of the invention
It is an object of the invention to provide a kind of easy operation, the BDO Shuangzi succinum that method is easy, the feature of environmental protection is good The preparation method of acid di-sec-octyl sodium sulfonate.
The technical solution of the present invention is:
The preparation method of a kind of BDO gemini di-sec-octyl succinate sodium sulfonate, is characterized in that: include following step Rapid: maleic anhydride and two hydroxy combinings on BDO carry out single-esterification and generate the double maleic acid list of BDO Ester, the double maleic mono-ester of BDO carries out double esterification reaction again with sec-octyl alcohol, and to obtain the double maleic acid di-secondary of BDO pungent Ester, the double maleic acid di-sec-octyl of last BDO carries out conjugate addition sulfonating reaction with sodium sulfite again and prepares product; Wherein, the catalyst of double esterification reaction is carbon-based solid acid catalyst.
During single-esterification, maleic anhydride and BDO mol ratio are 2.15:1.0.
During double esterification reaction, sec-octyl alcohol addition is 1.00 1.05 by the mol ratio of maleic anhydride Yu sec-octyl alcohol.
During sulfonating reaction, the consumption of sodium sulfite presses maleic anhydride and NaHSO3Mol ratio be 1.00 1.05.
Reaction equation:
The present invention easily operates, method easy, the feature of environmental protection is good.
1, BDO gemini di-sec-octyl succinate sodium sulfonate is a kind of new Gemini surface active agent, currently without Directly related document was reported.
2, the present invention uses carbon-based solid acid (the immobilized p-methyl benzenesulfonic acid of starch) to make catalyst for esterification reaction, catalyst manufacture Simply, cheap, and esterification products only need to be carried out simple filtration just can separating catalyst, the catalyst of separation is repeatable Use.Avoiding liquid acid catalyst to be difficult to separate with product, etching apparatus, the catalyst such as metal solid is sour make trouble and valency The shortcomings such as lattice are high.
3, this technique need not when double esterification reaction additional make water entrainer and double esterification reaction often such as toluene equal solvent Pressure carries out being esterified dehydration.Avoiding existing Shuangzi sulphosuccinates of preparing needs additional water entrainer maybe to need to use decompression The method of dehydration, decreases the requirement to equipment of reducing pressure, the consumption decreasing raw material and distillation except the operation of toluene.
4, this technique is when esterification, directly ethylene glycol and cis-butenedioic anhydride is reacted, is not required to added acetone etc. and makees cosolvent, keep away Having exempted from original technique needs added acetone to make cosolvent, needs distillation except the work of acetone at the end of decreasing the consumption of raw material and reaction Sequence, it also avoid environmental pollution.
5, the single, double reaction time of esterification of the present invention is short, has effectively contained the phenomenon that double ester hydrolysis and product color are deepened.
6, the most additional phase transfer catalyst of sulfonating reaction, utilizes and controls double esterification reaction esterification yield, by double esterification reaction Monoesters in become salt as phase transfer catalyst.Decrease the impurity of product and the utilization rate of equipment.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the infrared spectrogram of BDO gemini di-sec-octyl succinate sodium sulfonate.
Fig. 2 is the mass spectrum of BDO gemini di-sec-octyl succinate sodium sulfonate.
Detailed description of the invention
The preparation method of a kind of BDO gemini di-sec-octyl succinate sodium sulfonate, comprises the following steps: the first step Single-esterification (I), weighs BDO and horse in the ratio that maleic anhydride and BDO mol ratio are 2.15:1.0 Carrying out anhydride to add in the reactor being furnished with agitator, thermometer and reflux condensing tube, be passed through nitrogen, in 10min, stirring is warming up to 110 DEG C and timing, maintain the temperature at 110 DEG C ± 2 DEG C reaction 2.0h, and single-esterification terminates.Second step double esterification reaction (II), Adding sec-octyl alcohol on same table apparatus, addition is claimed in the ratio that mol ratio is 1.00 1.05 of maleic anhydride with sec-octyl alcohol Take, add and account for the carbon-based solid acid catalyst of cis-butenedioic anhydride quality 1% and (add by m (p-methyl benzenesulfonic acid): m (starch)=1 2 in beaker Entering soluble starch and p-methyl benzenesulfonic acid, heating distilled water dissolves.Treat solution clear, be cooled to room temperature, steam with rotating Send out instrument and flash to sticky shape colloid, insert in Muffle furnace carbonization 8h at 200 DEG C.Grind, cross 80 mesh sieves, i.e. obtain carbon-based solid Acid catalyst), to load onto water knockout drum, continue to be passed through nitrogen, in 10min, be warming up to 200 ± 2 DEG C and timing, period constantly separates life The water become, reacts 3h, and double esterification reaction terminates (esterification yield is 94%-96%).Product is cooled to 50 ± 10 DEG C, is recovered by filtration and urges Agent, reusable after recovery.Filtrate is neutralized to pH=7 ± 0.5 with the NaOH aqueous solution of 30%.3rd step sulfonating reaction (III), adding aqueous solution of sodium bisulfite on same table apparatus, the amount of sodium sulfite presses maleic anhydride and NaHSO3Rub You weigh than the ratio being 1.00 1.05, and aqueous solution of sodium bisulfite quality presses the 1.0 of double esterification product theory yield extraordinarily Enter.Being passed through nitrogen, in the lower 10min of stirring, oil bath is warmed up to 120 ± 2 DEG C of insulations, is stirred vigorously, and system azeotropic at 104 DEG C is anti- Answer 2.5h, i.e. obtain product.Sulfonated tail gas SO2Absorb with sig water.
Surface tension γ is surveyed with Zibo Zi Fen Instrument Ltd. CL-3 type automatic tension analyzerCMCDense with critical micell Degree CMC;Nicolet company of U.S. AVATAR-370 Fourier transformation infrared spectrometer surveys infrared spectrum;Thermo company of the U.S. Trace DSQ-GC/MS type list quadrupole rod gas chromatograph-mass spectrometer (GC-MS) surveys mass spectrum.
Product structure is verified
1) infrared analysis
The infrared spectrogram of BDO gemini di-sec-octyl succinate sodium sulfonate is as shown in Figure 1.
In figure, 2956.44.cm-1For-CH3Antisymmetric stretching vibration, 2931.27cm-1For-CH2Antisymmetry flexible shake Dynamic 2859.18cm-1For-CH3Symmetrical stretching vibration, 1732.09cm-1For the stretching vibration of C=O, 1378.76cm-1Left and right is C-CH3Deformation vibration, 1224.53cm-1Asymmetric stretching vibration 1047.67cm for C-O-C-1Shake for the symmetry of C-O is flexible Dynamic, 500~600cm-1Stretching vibration for C-S.Prove the functional group having target product structure in the product of synthesis.
2) mass spectral analysis
The mass spectrum of BDO gemini di-sec-octyl succinate sodium sulfonate is as shown in Figure 2.
In figure, m/z335.98 is that target product sloughs two Na+The fragment ion formed;M/z257.72 is target product Slough two-SO3The fragment ion that Na is formed;M/z81.03 is that target product sloughs functional group's fragment ion.
According to above characterization result, the product of synthesis is target product BDO Shuangzi succinic acid di-sec-octyl sulphur Acid sodium.
The surface property of product and application performance
The product BDO gemini di-sec-octyl succinate sodium sulfonate of synthesis under optimum process condition is carried out table Face performance and application performance measure, and result is as shown in table 1.
Table 11,4-butanediol gemini di-sec-octyl succinate sodium sulfonate surface property and application performance
The toxicity testing result of product
The toxicity testing result of BDO gemini di-sec-octyl succinate sodium sulfonate is as shown in table 2.
The toxicity testing result of table 2:1,4-butanediol gemini di-sec-octyl succinate sodium sulfonate
As can be seen from Table 2: it is little, weak that BDO gemini di-sec-octyl succinate sodium sulfonate belongs to low toxicity, zest The material of sensitization.

Claims (1)

1. a BDO gemini di-sec-octyl succinate sodium sulfonate, is characterized in that:
BDO gemini di-sec-octyl succinate sodium sulfonate surface property and application performance
The toxicity testing result of BDO gemini di-sec-octyl succinate sodium sulfonate
Preparation method comprises the following steps: first step single-esterification, is 2.15 by maleic anhydride and BDO mol ratio: The ratio of 1.0 weighs BDO and maleic anhydride adds in the reactor being furnished with agitator, thermometer and reflux condensing tube, Being passed through nitrogen, in 10min, stirring is warming up to 110 DEG C and timing, maintains the temperature at 110 DEG C ± 2 DEG C reaction 2.0h, single-esterification Terminate;Second step double esterification reaction, adds sec-octyl alcohol on same table apparatus, addition press maleic anhydride and sec-octyl alcohol mole Weigh than the ratio being 1.00 1.05, add the carbon-based solid acid catalyst accounting for cis-butenedioic anhydride quality 1%, load onto water knockout drum, continue Being passed through nitrogen, be warming up to 200 ± 2 DEG C and timing in 10min, period constantly separates the water of generation, reacts 3h, and double esterification reaction is tied Bundle, esterification yield is 94%-96%;Product is cooled to 50 ± 10 DEG C, catalyst is recovered by filtration, reusable after recovery;Filter Liquid is neutralized to pH=7 ± 0.5 with the NaOH aqueous solution of 30%;3rd step sulfonating reaction, adds sulfurous acid on same table apparatus Hydrogen sodium water solution, the amount of sodium sulfite presses maleic anhydride and NaHSO3The ratio that mol ratio is 1.00 1.05 weigh, sulfurous Acid hydrogen sodium water solution quality presses 1.0 times of additions of double esterification product theory yield;It is passed through nitrogen, oil bath liter in the lower 10min of stirring Temperature, to 120 ± 2 DEG C of insulations, is stirred vigorously, and system is azeotropic reaction 2.5h at 104 DEG C, i.e. obtains product;Sulfonated tail gas SO2With Sig water absorbs;
The preparation method of described carbon-based solid acid catalyst: press p-methyl benzenesulfonic acid in beaker: the mass ratio of starch=1 2 adds Soluble starch and p-methyl benzenesulfonic acid, heating distilled water dissolves;Treat solution clear, be cooled to room temperature, use rotary evaporation Instrument flashes to sticky shape colloid, inserts in Muffle furnace carbonization 8h at 200 DEG C;Grind, cross 80 mesh sieves, i.e. obtain carbon-based solid acid Catalyst.
CN201310375651.4A 2013-08-26 2013-08-26 The preparation method of BDO gemini di-sec-octyl succinate sodium sulfonate Active CN103450054B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201310375651.4A CN103450054B (en) 2013-08-26 2013-08-26 The preparation method of BDO gemini di-sec-octyl succinate sodium sulfonate
CN201610835064.2A CN106431996B (en) 2013-08-26 2013-08-26 The preparation method of 1,4 good butanediol gemini di-sec-octyl succinate sodium sulfonates of the feature of environmental protection
CN201610840146.6A CN106431997B (en) 2013-08-26 2013-08-26 The preparation method of easy-operating 1,4 butanediol gemini di-sec-octyl succinate sodium sulfonate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310375651.4A CN103450054B (en) 2013-08-26 2013-08-26 The preparation method of BDO gemini di-sec-octyl succinate sodium sulfonate

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CN201610835064.2A Division CN106431996B (en) 2013-08-26 2013-08-26 The preparation method of 1,4 good butanediol gemini di-sec-octyl succinate sodium sulfonates of the feature of environmental protection
CN201610840146.6A Division CN106431997B (en) 2013-08-26 2013-08-26 The preparation method of easy-operating 1,4 butanediol gemini di-sec-octyl succinate sodium sulfonate

Publications (2)

Publication Number Publication Date
CN103450054A CN103450054A (en) 2013-12-18
CN103450054B true CN103450054B (en) 2016-12-28

Family

ID=49732948

Family Applications (3)

Application Number Title Priority Date Filing Date
CN201610835064.2A Active CN106431996B (en) 2013-08-26 2013-08-26 The preparation method of 1,4 good butanediol gemini di-sec-octyl succinate sodium sulfonates of the feature of environmental protection
CN201610840146.6A Active CN106431997B (en) 2013-08-26 2013-08-26 The preparation method of easy-operating 1,4 butanediol gemini di-sec-octyl succinate sodium sulfonate
CN201310375651.4A Active CN103450054B (en) 2013-08-26 2013-08-26 The preparation method of BDO gemini di-sec-octyl succinate sodium sulfonate

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CN201610835064.2A Active CN106431996B (en) 2013-08-26 2013-08-26 The preparation method of 1,4 good butanediol gemini di-sec-octyl succinate sodium sulfonates of the feature of environmental protection
CN201610840146.6A Active CN106431997B (en) 2013-08-26 2013-08-26 The preparation method of easy-operating 1,4 butanediol gemini di-sec-octyl succinate sodium sulfonate

Country Status (1)

Country Link
CN (3) CN106431996B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106431996B (en) * 2013-08-26 2017-10-31 南通大学 The preparation method of 1,4 good butanediol gemini di-sec-octyl succinate sodium sulfonates of the feature of environmental protection
CN105566505B (en) * 2015-12-16 2017-09-22 中铁十二局集团有限公司 A kind of preparation method of starch sulphonic acid ester
CN109627168A (en) * 2019-01-02 2019-04-16 江苏理工学院 A kind of preparation method of tributyl citrate
CN110563867B (en) * 2019-09-25 2020-06-02 清华大学 Preparation method of high molecular weight high cis content polybutylene maleate
CN113637153B (en) * 2021-10-18 2022-03-22 常熟耐素生物材料科技有限公司 Multi-block polyether type high-molecular surfactant and preparation method and application thereof
CN114736144B (en) * 2022-04-27 2023-10-13 武汉百科药物开发有限公司 Industrial preparation method of docusate calcium

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3720000A1 (en) * 1987-06-15 1988-12-29 Henkel Kgaa FATTY ACID POLYOXYALKYLESTER SULFONATES, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE AS A SURFACTANT
JPH10245370A (en) * 1997-03-04 1998-09-14 Daikin Ind Ltd Fluorine-containing polymerizable surfactant and its production
CN101747193A (en) * 2008-12-11 2010-06-23 浙江杭州鑫富药业股份有限公司 Method for preparing butylene dibutyl maleate
CN102001975A (en) * 2010-10-29 2011-04-06 南通大学 Ethylene glycol bi-sulpho succinic acid bi(2-methyl amyl) artesunate and production method thereof
CN102351745B (en) * 2011-09-08 2013-05-15 南通大学 Method for preparing disodium ethylene glycol bis(2-ethyl-1-butyl)sulfosuccinate
CN102351747B (en) * 2011-09-08 2013-05-15 南通大学 Method for preparing disodium ethylene glycol dihexyl sulfosuccinate
CN102351746A (en) * 2011-09-08 2012-02-15 南通大学 Method for preparing glycol sodium di-sulpho succinate di(2-methyl1-amyl) ester
CN103086928A (en) * 2013-02-04 2013-05-08 南通大学 Sodium 1,4-butanediol bissulfosuccinate laurylpolyoxyethene (3) isooctyl sulfonate and its preparation method
CN106431996B (en) * 2013-08-26 2017-10-31 南通大学 The preparation method of 1,4 good butanediol gemini di-sec-octyl succinate sodium sulfonates of the feature of environmental protection

Also Published As

Publication number Publication date
CN106431997A (en) 2017-02-22
CN106431996A (en) 2017-02-22
CN106431996B (en) 2017-10-31
CN106431997B (en) 2018-04-13
CN103450054A (en) 2013-12-18

Similar Documents

Publication Publication Date Title
CN103450054B (en) The preparation method of BDO gemini di-sec-octyl succinate sodium sulfonate
CN102351745B (en) Method for preparing disodium ethylene glycol bis(2-ethyl-1-butyl)sulfosuccinate
CN102351747B (en) Method for preparing disodium ethylene glycol dihexyl sulfosuccinate
CN103788034B (en) The preparation method of a kind of 5 hydroxymethyl furfural
CN103086928A (en) Sodium 1,4-butanediol bissulfosuccinate laurylpolyoxyethene (3) isooctyl sulfonate and its preparation method
CN103232497B (en) A kind of preparation method of alkyl glycoside
CN102351746A (en) Method for preparing glycol sodium di-sulpho succinate di(2-methyl1-amyl) ester
CN103435519A (en) Preparation method of ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate
CN105348351A (en) Method for preparing tetraene methyl CAS
CN112047883A (en) Preparation method of cisatracurium besylate
CN102659088B (en) Water-phase synthesis method of sodium azide
CN109824466B (en) Method for preparing 2-methyl-1, 3-pentadiene
CN102267913B (en) Synthetic method of 2,3-dimethyl-2,3-dinitrobutane
CN103435521A (en) Preparation method of ethylene glycol gemini di-n-octyl phthalate sodium sulfosuccinate
CN103450053A (en) Preparation method of ethylene glycol gemini di-isooctyl succinate sodium sulfonate
CN111518861B (en) Novel process for preparing D-calcium pantothenate
CN110835296B (en) Preparation process of 2,2, 4-trimethyl-3-hydroxypentanoic acid
CN105622408A (en) Method for preparing bi (2-micristin) calcium urea compound
CN103435520A (en) Preparation method of 1,4-butanediol gemini dioctyl sodium sulfosuccinate
CN106117039B (en) A method of preparing sodium acetate using humin
CN108440270A (en) A kind of synthetic method of 2,3,3,3- tetrafluoros propionic acid
CN103450049A (en) Preparation method of 1,3-propylene glycol gemini di-n-octyl succinate sodium sulfonate
CN103450052A (en) Preparation method of 1,3-propylene glycol gemini di-sec-octyl succinate sodium sulfonate
CN102351741A (en) Method for preparing and purifying paired ion chromatography reagent sodium hexanesulfonate
CN103435522A (en) Preparation method of 1,3-propanediol gemini dioctyl sodium sulfosuccinate

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20191106

Address after: 226600 fine chemical industry park, Haian Development Zone, Jiangsu Province (Nanyang Village, Chengdong town)

Patentee after: Nantong Hongshen Chemical Co., Ltd.

Address before: 226019 Jiangsu city of Nantong province sik Road No. 9

Patentee before: Nantong University