CN1303053C - Method for realizing cleansing production of sebacic acid by using clearing resin - Google Patents

Method for realizing cleansing production of sebacic acid by using clearing resin Download PDF

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Publication number
CN1303053C
CN1303053C CNB200510038999XA CN200510038999A CN1303053C CN 1303053 C CN1303053 C CN 1303053C CN B200510038999X A CNB200510038999X A CN B200510038999XA CN 200510038999 A CN200510038999 A CN 200510038999A CN 1303053 C CN1303053 C CN 1303053C
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China
Prior art keywords
resin
sebacic acid
tower
phenol
group
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Expired - Fee Related
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CNB200510038999XA
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Chinese (zh)
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CN1686996A (en
Inventor
李爱民
蒋珍茂
蔡建国
张晓�
石洪雁
周家艳
张全兴
龙超
刘福强
陈金龙
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Jiangsu Nju Gede Environmental Protection Technology Co Ltd
Nanjing University
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Jiangsu Nju Gede Environmental Protection Technology Co Ltd
Nanjing University
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Priority to CNB200510038999XA priority Critical patent/CN1303053C/en
Publication of CN1686996A publication Critical patent/CN1686996A/en
Application granted granted Critical
Publication of CN1303053C publication Critical patent/CN1303053C/en
Expired - Fee Related legal-status Critical Current
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  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

The present invention discloses a method for realizing the clean production of sebacic acid by using removing resin, which comprises the steps that neutralization water which is generated by the neutralization of sulfuric acid in sebacic acid producing technology and contains sebacic acid monosodium salt passes through two groups of adsorption towers in sequence, and each group of the adsorption towers is filled with one kind of removing resin; the color in feed liquid is removed firstly, and then, phenol used as diluting agents in the producing technology is separated; impurities are gradually removed in the producing process, substances are separated and purified, and the pollution discharge is reduced, so that the traditional tail treatment is replaced. The resin of saturated adsorption is desorbed for regeneration. After distilled, high concentration desorbed eluent can be used for recovering phenol, and low concentration eluent is used for the next desorbing operation. The method can make the product quality of sebacic acid reach the primary standard, most of phenol in the technology can be recovered for cyclic utilization, and the phenol content of finally discharged waste water conforms to the state standard of effluent discharge. The present invention has obvious environmental economical and social benefits.

Description

A kind of method that resin is realized the sebacic acid cleaner production of removing of utilizing
One, technical field
The present invention relates to a kind of production method of sebacic acid, particularly, a kind of method that resin is realized the sebacic acid cleaner production of removing of utilizing.
Two, technical background
Sebacic acid is a kind of important Organic Chemicals, about 30,000 tons of China's annual production.Most widely used in the sebacic acid production technique in the world at present is ricinolic acid high temperature alkali cracking, because this technology is thinner with phenol (or cresols), therefore, produces a large amount of processing wastewaters aborning, and 1 ton of product of every production produces 35 tons of processing wastewaters approximately.Phenol in wastewater content is 2000~4000mg/L, COD CrReach 7000~10000mg/L, also contain 8~12% sodium sulfate in the waste water, and a spot of raw material Viscotrol C and intermediate.Domestic existing manufacturing enterprise without good improvement, has caused severe contamination to environment and rivers to its factory effluent majority.
Three, summary of the invention
1, goal of the invention: the purpose of this invention is to provide a kind of method that resin is realized the sebacic acid cleaner production of removing of utilizing, this method is removed absorption process by increasing in existing manufacturing technique, utilize the complex function adsorption resin of resistant to elevated temperatures decolorizing resin and high adsorption capacity, progressively separate in process of production and remove impurity, thereby can make high-quality sebacic acid product, phenol that again can the Separation and Recovery overwhelming majority, make the wastewater reduction, innoxious of final discharge, realize the target of recycling economy.
2, technical scheme: for achieving the above object, a kind of utilization of the present invention removed the method that resin is realized the sebacic acid cleaner production, may further comprise the steps:
(1) in the sebacic acid production technique in sulfuric acid and after, to contain sebacic acid list sodium salt in and water under the condition of 5~20 ℃ and flow 1~6BV/h (per hour bed volume), successively by two groups of adsorption towers, respectively fill a kind of removing Resin A and B in two groups of adsorption towers, absorb colourity and separating phenol in the feed liquid respectively;
(2) use alkaline solution and water as desorbing agent, will adsorb organic removing resin desorption and regeneration in the adsorption tower, desorption temperature is 40~90 ℃, and the flow of desorbing agent is 0.5~4BV/h;
(3) the high density elutriant that desorption is got off reclaims phenol through distillation, and lower concentration elutriant cover is used for following batch desorption manipulation.
In step (1), described removing Resin A is the high temperature resistant strong anion-exchange resin that has chain alkyl or pyridine group, as NDA280 or NDA288 resin, preferred NDA288 pyridine highly basic decolorizing resin (being Jiangsu Nanda Gede Environmental Protection Technology Co., Ltd produces).Remove resin B on the high-specific surface area resin, having the composite function resin that forms hydrogen bond and complexing group with phenolic hydroxyl group, as NDA7, NDA150, NDA88 or NDA99, preferred NDA99 composite function resin (being Jiangsu Nanda Gede Environmental Protection Technology Co., Ltd produces).
At the alkaline solution described in the step (2) is the sodium hydroxide solution of concentration (quality) 5~20%.
In step (1), the adsorption operations of resin can adopt double-column in series absorption, the operation scheme of single tower desorption, be that every kind of resin is provided with I, II, three adsorption towers of III, with I, II tower series connection following current absorption, the I tower is as first post earlier, the II tower is as stern post, after the absorption of I tower is saturated, switch to II, III tower series connection following current absorption, the II tower is as first post, the III tower is as stern post, the I tower carries out the following current desorption simultaneously, and so cyclical operation can guarantee the operation continuously all the time of whole device.
3, beneficial effect: the present invention compared with prior art, its remarkable advantage is: after one-level was removed resin decolorization, colourity reduced greatly, and makes final sebacic acid product colourity reach the first class product standard (1).(2) phenol content<0.5mg/L in the feed liquid after secondary is removed resin absorption has reduced the impurity in the product in subsequent technique, and makes final factory effluent contain the phenol amount to reach discharging standards, and COD Cr<2000mg/L is for further handling the good condition of having created.(3) phenol of the overwhelming majority in the recyclable production technique is realized changing waste into resources.(4) remove a grade resins ability high temperature that is used to decolour in the resin, long service life, and the same with the complex function adsorption resin that is used for separating phenol all to have regenerability good, reusable advantage.
Four, specific implementation method
Further specify the present invention by the following examples.
Embodiment 1: the NDA288 of each 10mL and NDA99 resin are respectively charged into (Ф 32 * 250mm) in the glass adsorption column of strap clamp cover.Neutralizer after filtering, under 5 ℃ of conditions, at first by the NDA288 resin bed, treatment capacity is that 800mL/ criticizes, one-level effluent color dilution<20 with the flow of 1BV/h with it #(platinum cobalt standard colorimetry) is collected in it in container of clean dried.The one-level water outlet is carried out secondary absorption through the NDA99 resin, and treatment capacity is that 400mL/ criticizes, water outlet phenol content<0.5mg/L.Transfer this material liquid pH to 1~2 with sulfuric acid again, suction filtration, oven dry obtain sebacic acid product 9.3815g/ and criticize, and its quality reaches the first grade standard.The phenol in wastewater content of discharging after the acid out crystallization is lower than discharging standards, COD Cr<2000mg/L is for further handling the good condition of having created.
After one-level is removed resin NDA288 absorption 800mL, do not reach saturatedly yet, can need not desorption.Remove resin to adsorbing saturated secondary, using 50mL concentration (quality) successively is that 8% sodium hydroxide solution and 60mL water are under 80 ℃ of conditions, flow with 0.5BV/h carries out desorption by the NDA99 resin bed, the high density elutriant (20mL) that desorption gets off is through distilling recyclable phenol 76%, and lower concentration elutriant cover is used for following batch desorption manipulation.
Embodiment 2: the NDA288 of each 100mL and NDA99 resin are respectively charged into (Ф 96 * 800mm) in the glass adsorption column of strap clamp cover.Neutralizer after filtering, under 10 ℃ of conditions, at first by the NDA288 resin bed, treatment capacity is that 8000mL/ criticizes, one-level effluent color dilution<20 with the flow of 1BV/h with it #, it is collected in the container of clean dried.The one-level water outlet is carried out secondary absorption through the NDA99 resin, and treatment capacity is that 4000mL/ criticizes, water outlet phenol content<0.5mg/L.Transfer this material liquid pH to 1~2 with sulfuric acid again, suction filtration, oven dry obtain sebacic acid product 91.7216g/ and criticize, and its quality reaches the first grade standard.The phenol in wastewater content of discharging after the acid out crystallization is lower than discharging standards, COD Cr<2100mg/L is for further handling the good condition of having created.
After one-level is removed resin NDA288 absorption 8000mL, do not reach saturatedly yet, can need not desorption.Remove resin to adsorbing saturated secondary, using 500mL concentration (quality) successively is that 8% sodium hydroxide solution and 600mL water are in 80 ℃, flow with 0.5BV/h carries out desorption by the NDA99 resin bed, the high density elutriant (200mL) that desorption gets off is through distilling recyclable phenol 75%, and lower concentration elutriant cover is used for following batch desorption manipulation.
Embodiment 3: the one-level among the embodiment 1 is removed decolorizing resin replace with the NDA88 resin with the replacement of NDA280 resin, secondary removing separating phenol resin, other operational conditions remain unchanged, and every batch processing amount and effluent quality all slightly are inferior to NDA288 and NDA99 two-stage absorption method for combined use.
Embodiment 4: the one-level among the embodiment 1 is removed decolorizing resin replace with the NDA150 resin with the replacement of NDA280 resin, secondary removing separating phenol resin, other operational conditions remain unchanged, and every batch processing amount and effluent quality all slightly are inferior to NDA288 and NDA99 two-stage absorption method for combined use.
Embodiment 5: the one-level among the embodiment 1 is removed decolorizing resin replace with the NDA7 resin with the replacement of NDA280 resin, secondary removing separating phenol resin, other operational conditions remain unchanged, and every batch processing amount and effluent quality all slightly are inferior to NDA288 and NDA99 two-stage absorption method for combined use.
Embodiment 6: the adsorption temp among the embodiment 1 is substituted with 20 ℃, and desorption temperature substitutes with 40 ℃, and other operational conditions remain unchanged, and every batch processing amount and effluent quality all slightly are inferior to embodiment 1.
Embodiment 7: the absorption flow among the embodiment 1 is substituted with 6BV/h, and the desorption flow substitutes with 4BV/h, and other operational conditions remain unchanged, and every batch processing amount and effluent quality all slightly are inferior to embodiment 1.

Claims (5)

1, a kind of utilization removed the method that resin is realized the sebacic acid cleaner production, it is characterized in that this method may further comprise the steps:
(1) in the sebacic acid production technique in sulfuric acid and after, to contain sebacic acid list sodium salt in and water under the condition of 5~20 ℃ and flow 1~6BV/h, successively by two groups of adsorption towers, be filled with the removing resin of absorbing colourity in the feed liquid in one group of adsorption tower, be filled with the removing resin of separating phenol in another group adsorption tower;
(2) use alkaline solution and water as desorbing agent, will adsorb organic removing resin desorption and regeneration in the adsorption tower, desorption temperature is 40~90 ℃, and the flow of desorbing agent is 0.5~4BV/h;
(3) the high density elutriant that desorption is got off reclaims phenol through distillation, and lower concentration elutriant cover is used for following batch desorption manipulation;
The removing resin of colourity is the strong anion-exchange resin of high temperature resistant belt length alkyl group or pyridine group in the absorption feed liquid described in the step (1), and the removing resin of separating phenol is for having the composite function resin that forms hydrogen bond and complexing group with phenolic hydroxyl group on the high-specific surface area resin.
2, a kind of utilization according to claim 1 removed the method that resin is realized the sebacic acid cleaner production, and the strong anion-exchange resin that it is characterized in that high temperature resistant belt length alkyl group or pyridine group is NDA280 or NDA288 resin.
3, a kind of utilization according to claim 1 removed the method that resin is realized the sebacic acid cleaner production, it is characterized in that the composite function resin that has on the high-specific surface area resin with phenolic hydroxyl group formation hydrogen bond and complexing group is NDA7, NDA150, NDA88 or NDA99.
4, a kind of utilization according to claim 1 removed the method that resin is realized the sebacic acid cleaner production, it is characterized in that the mass percent concentration at the alkaline solution described in the step (2) is the sodium hydroxide solution of 5-20%.
5, a kind of method that resin is realized the sebacic acid cleaner production of removing of utilizing according to claim 1, it is characterized in that every group of adsorption tower adopts the operation scheme of double-column in series absorption, single tower desorption, I, II, three adsorption towers of III promptly are set, earlier with I, II tower series connection following current absorption, the I tower is as first post, the II tower is as stern post, after the absorption of I tower is saturated, switch to II, III tower series connection following current absorption, the II tower is as first post, the III tower is as stern post, and the I tower carries out the following current desorption simultaneously, so cyclical operation.
CNB200510038999XA 2005-04-21 2005-04-21 Method for realizing cleansing production of sebacic acid by using clearing resin Expired - Fee Related CN1303053C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101362620B (en) * 2007-08-09 2010-09-22 谢建中 Phenolic waste water treatment technology from hydroxyphenylglycine synthesis process
CN113354532B (en) * 2020-04-02 2023-04-07 丰益高分子材料(连云港)有限公司 Method for preparing high-purity sebacic acid
CN112724010B (en) * 2020-12-26 2023-01-24 衡水京华化工有限公司 Production method of refined sebacic acid

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1142485A (en) * 1995-08-04 1997-02-12 河北省环境保护研究所 Circulation use of production of phenol from sebacic acid
CN1490296A (en) * 2002-10-15 2004-04-21 上海焦化有限公司 Refining method for decanedioic acid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1142485A (en) * 1995-08-04 1997-02-12 河北省环境保护研究所 Circulation use of production of phenol from sebacic acid
CN1490296A (en) * 2002-10-15 2004-04-21 上海焦化有限公司 Refining method for decanedioic acid

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Granted publication date: 20070307

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