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CN1024542C - Method for preparing polycarbonate-grade bisphenol A - Google Patents

Method for preparing polycarbonate-grade bisphenol A Download PDF

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Publication number
CN1024542C
CN1024542C CN 92106030 CN92106030A CN1024542C CN 1024542 C CN1024542 C CN 1024542C CN 92106030 CN92106030 CN 92106030 CN 92106030 A CN92106030 A CN 92106030A CN 1024542 C CN1024542 C CN 1024542C
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washing
phenol
chloride
kilograms
dihydroxyphenyl propane
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CN1062720A (en
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王志仁
陈步高
王振宇
荣捷
王欢
付晓拓
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SHENYANG CHEMICAL COMPREHENSIVE UTILIZATION INST
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SHENYANG CHEMICAL COMPREHENSIVE UTILIZATION INST
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Abstract

A process for preparing polycarbonate-grade bisphenol A from phenol and acetone features that the sulfuric acid, metal chloride or hydrochloric acid is used as main catalyst, the mercapto-contained carboxylic acid or its carboxylate is used as auxiliary catalyst, and the phenol and acetone are condensed in the solvent of aromatic hydrocarbon or its derivative to obtain bisphenol A.

Description

Making method of polycarbonate level bisphenol A
The invention relates to a kind of phenol, acetone of adopting is the productive method of chemical engineering that raw material is produced polycarbonate-grade bis phenol A.
Dihydroxyphenyl propane, formal name used at school 2, two [4-the hydroxy phenyl]-propane of 2-.The dihydroxyphenyl propane of present industrial production generally is to be raw material with phenol, acetone, forms through condensation under an acidic catalyst effect.Dihydroxyphenyl propane is owing to use the catalyzer difference, divide sulfuric acid process, hydrogen chloride, cation exchange resin processes etc., it is 91106075.8 " a kind of dihydroxyphenyl propane method of producing " that the shortcoming that the present inventor once existed at aforementioned production method is developed number of patent application, this patent application is improved primary sulfuric acid process dihydroxyphenyl propane technology, keeping its flow process short, equipment is few, under the prerequisite of characteristics such as technology is simple, produce the high quality dihydroxyphenyl propane that meets the polycarbonate production service requirements, but still having, this technology need improve part, in the technology after making crude bisphenol, need and to put into the aromatic hydrocarbon solvent of crystallization reaction jar after the dihydroxyphenyl propane washing, dissolving, cooling, crystallization, isolated aromatic hydrocarbon mother liquor is put in the alkali cleaning retort again, leaves standstill regeneration after alkali cleaning.So not only make complex technical process, and need to consume important chemical material sodium hydroxide.The nascent state hydrogenchloride that utilizes sulfuric acid and Repone K or sodium-chlor to produce in condensation reaction is separately made main catalyzer, and setting-up point is higher, and the reaction times is longer.
The purpose of this invention is to provide a kind of improved method of producing dihydroxyphenyl propane, it has widened the variety range of catalyzer, solvent, and technology is simpler, reduced setting-up point, reduce the reaction times, further improved the quality and the yield of product, reduced material cost.
The object of the present invention is achieved like this, adopt sulfuric acid and metal chloride or hydrochloric acid as main catalyzer, the carboxylate salt that contains the carboxylic acid of sulfydryl or contain sulfydryl is a cocatalyst, in the solvent of aromatic hydrocarbons or derivatives thereof, make phenol and acetone chemical equivalent according to 1: 0.5 mol ratio, under 5-30 ℃ of temperature, carry out generating in condensation reaction 1-6 hour dihydroxyphenyl propane, the crude bisphenol that generates is through the dilution washing, crystallization, the washing back is flooded with methylene dichloride once more, obtains meeting the dihydroxyphenyl propane of polycarbonate production service requirements.
The present invention is because employing sulfuric acid and metal chloride or hydrochloric acid are main catalyzer, under hydrogenchloride that in its condensation reaction, takes place and the effect of vitriolic dual catalytic, strengthened the main reaction of condensation, speed is fast, and the time is short, and temperature of reaction is low, so further suppressed the generation of by product, the quality of product is good, and yield height, dihydroxyphenyl propane meet the requirement that polycarbonate production is used.Technology of the present invention is simpler, compare with hydrogen chloride, base exchange method have that flow process is short, equipment is few, characteristics such as reduced investment, production cost are low.With the sulfuric acid of formerly applying for a patent, nascent state hydrogen chloride relatively, realized the chemical equivalent proportioning of phenol and acetone, the use kind of catalyzer has been widened in the low temperature condensation reaction, is easier to apply.
Below the invention will be further described:
1. condensation
The main catalyzer of condensation reaction is sulfuric acid and hydrogenchloride, and hydrogenchloride is that the sulfuric acid and the metal chloride that drop into take place through chemical reaction in condensation course, and perhaps sulfuric acid of Tou Ruing and hydrochloric acid take place through chemical analytic function in condensation reaction.Metal chloride is meant that chlorine lithium, calcium chloride, magnesium chloride, zinc chloride, lead chloride, bariumchloride, iron(ic) chloride, aluminum chloride, titanium aluminum chloride, titanium tetrachloride and ammonification ammonium or other contain the metallic compound of chlorion, and the action effect of these metal chlorides all is better than Repone K, sodium-chlor.Cocatalyst is the metal carboxylate that contains the carboxylic acid of sulfydryl or contain sulfydryl, the carboxylic acid that contains sulfydryl is meant the carboxylic acid that has been replaced hydrogen atom on the carbon bond by sulfydryl, the number that sulfydryl replaced is 1-2, the carbonatoms of carboxylic acid is 1-8, and the hydroxy acid salt that contains sulfydryl is meant potassium, sodium, calcium, barium, the ammonium salt of above-mentioned carboxylic acid.The solvent of condensation reaction is the aromatic hydrocarbons or derivatives thereof, arene derivatives is meant that hydrogen atom on the carbon bond of benzene,toluene,xylene, ethylbenzene is by derivative that halogen replaced, halogen is fluorine, chlorine, bromine, substituted radical is 1-3, has widened the variety range of catalyzer, solvent.
Phenol and the acetone amount according to 1: 0.5 mol ratio is joined in the retort, and according to phenol and sulfuric acid 1: the amount of 0.1-1.5 mol ratio adds sulfuric acid, according to sulfuric acid and metal chloride or hydrochloric acid 1: the amount of 0.0025-0.25 mol ratio adds metal chloride or hydrochloric acid, 0.04-4% according to the phenol input amount adds the carboxylate salt that contains the carboxylic acid of sulfydryl or contain sulfydryl, 1-4 according to the phenol input amount extraordinarily goes into the aromatic hydrocarbons or derivatives thereof, under 5-30 ℃ of temperature stirring reaction 1-6 hour, after condensation reaction finishes, add 2-6 doubly to the water of resultant crude bisphenol, dilute washing at 70-100 ℃, washing time 0.1-2 hour, crude bisphenol is dissolved in the organic phase of aromatic hydrocarbons or derivatives thereof, sulfuric acid and corresponding salt or hydrochloric acid, be soluble in the aqueous phase, two are separated, lower floor is a water, tell as by-product and be used, form the method reclaim(ed) sulfuric acid of putting as employing and produce vitriolate of tartar or ammonium sulfate, upper organic phase adds the water of 2-6 times of resultant crude bisphenol again, still under 70-100 ℃, washed 0.1-2 hour, so washing is 1-3 time, then organic phase is stirred and be cooled to 10-25 ℃ in 0.1-4 hour, the crude bisphenol crystallization is separated out, obtain crude bisphenol after extracting aromatic hydrocarbons or derivatives thereof solvent out, the aromatic hydrocarbons or derivatives thereof leaves standstill told moisture content in 1-24 hour, dropped into condensation reaction again and recycled.
2. washing
With the crude bisphenol in the condensation jar, by the 4-10 of its weight extraordinarily entry wash once more, wash temperature 70-100 ℃, washed time 0.1-2 hour, the washing back solid-liquid separation that finishes obtains wet dihydroxyphenyl propane, washing water are the recyclable processing of phenolic wastewater.
3. refining
To contain wet dihydroxyphenyl propane joins in the impregnating autoclave, 0.2-1 according to the dihydroxyphenyl propane quantum of output extraordinarily goes into methylene dichloride, flooded 0.1-4 hour down at 5-35 ℃, after finishing, dipping leaches the methylene dichloride mother liquor, and drying gets the finished product dihydroxyphenyl propane, methylene dichloride mother liquor distillation recycling use, distillation residue can be used for synthetic adhesive.
Now describe technological process of the present invention in conjunction with the embodiments in detail.
Embodiment 1
47.5 kilograms of phenol with 99%, 14.8 kilograms in 98% acetone, 49 kilograms of 98% industrial sulphuric acids, 9.2 kilograms of 98% Aluminum Chloride Hexahydrates, 103.4 kilograms of toluene, 0.5 kilogram of Thiovanic acid, 30 kilograms of methylene dichloride, get 51.6 kilograms of finished product dihydroxyphenyl propanes through condensation, dilution washing, crystal refining, product yield is 90.6%; Reclaim 96.5 kilograms of toluene, the rate of recovery 93.4%; Reclaim 27.2 kilograms of methylene dichloride, the rate of recovery 90.7%.
The main technique condition of present embodiment is:
(1), condensation
The condensation mol ratio, phenol: acetone=1: 0.5
Phenol: sulfuric acid=1: 1
Sulfuric acid: Aluminum Chloride Hexahydrate=1: 0.075
Condensation weight ratio: phenol: toluene=1: 2.2
Phenol: Thiovanic acid=1: 0.01
Setting-up point: 15-30 ℃
Condensation churning time: 6 hours.
Dilution washing temperature: 95 ℃
Dilution washing times: 3 times
Each dilution washing time: 1 hour
Temperature is separated out in the dihydroxyphenyl propane crystallization: 10-25 ℃
The dihydroxyphenyl propane cooling and stirring time: 1 hour
The toluene mother liquor leaves standstill the branch water time: 16 hours
(2), washing
Wash water consumption: 6 times/crude bisphenol
Washing temperature: 90 ℃
The washing time: 2 hours
(3), refining
Methylene dichloride consumption: 0.58 times/dihydroxyphenyl propane
Dipping temperature: 25-30 ℃
Dipping time: 1.5 hours
Embodiment 2
189.9 kilograms of phenol with 99%, 59.2 kilograms in 98% acetone, 180 kilograms of 98% industrial sulphuric acids, 20 kilograms of Calcium Chloride Powder Anhydrouss (content 95%), 376 kilograms of toluene, 3 kilograms of barium thioglycolates, 92 kilograms of methylene dichloride, through condensation, dilution washing, crystal refining gets 201.1 kilograms of finished product dihydroxyphenyl propanes, and product yield is 88.2%; Reclaim 352.7 kilograms of toluene, the rate of recovery 93.8%; Reclaim 84.1 kilograms of methylene dichloride, the rate of recovery 91.4%.
The main technique condition of present embodiment is:
(1), condensation
Condensation mol ratio: phenol: acetone=1: 0.5
Phenol: sulfuric acid=1: 0.9
Sulfuric acid: Calcium Chloride Powder Anhydrous=1: 0.1
Condensation weight ratio: phenol: toluene=1: 2
Phenol: barium thioglycolate=1: 0.015
Setting-up point: 20-30 ℃
Condensation churning time: 1 hour.
Dilution washing temperature: 92 ℃
Dilution washing times: 4 times
Each dilution washing time: 1 hour
Temperature is separated out in the dihydroxyphenyl propane crystallization: 10-25 ℃
The dihydroxyphenyl propane cooling and stirring time: 1.5 hours
The toluene mother liquor leaves standstill the branch water time: 24 hours
(2), washing
Wash water consumption: 6.5 times/crude bisphenol
Washing temperature: 90 ℃
The washing time: 2 hours
(3), refining
Methylene dichloride consumption: 0.45 times/dihydroxyphenyl propane
Dipping temperature: 20-25 ℃
Dipping time: 2.5 hours
Embodiment 3
166.2 kilograms of phenol with 99%, 44.4 kilograms in 98% acetone, 154.3 kilograms of 98% industrial sulphuric acids, 24.3 kilograms of Magnesium Chloride Anhydrouss (content 98%), 427.7 kilograms of benzene, 2.3 kilograms of calcium mercaptoacetates, 72.2 kilograms of methylene dichloride, through condensation, dilution washing, crystal refining gets 150.5 kilograms of finished product dihydroxyphenyl propanes, and product yield is 88%; Reclaim 394.8 kilograms of toluene, the rate of recovery 92.3%; Reclaim 65.8 kilograms of methylene dichloride, the rate of recovery 91.1%.
The main technique condition of present embodiment is:
(1), condensation
The condensation mol ratio, phenol: acetone=1: 0.5
Phenol: sulfuric acid=1: 0.85
Sulfuric acid: Magnesium Chloride Anhydrous=1: 0.15
Condensation weight ratio: phenol: benzene=1: 2.6
Phenol: calcium mercaptoacetate=1: 0.014
Setting-up point: 10-25 ℃
Condensation churning time: 4 hours.
Dilution washing temperature: 88 ℃
Dilution washing times: 3 times
Each dilution washing time: 1.5 hours
Temperature is separated out in the dihydroxyphenyl propane crystallization: 10-25 ℃
The dihydroxyphenyl propane cooling and stirring time: 2 hours
The benzene mother liquor leaves standstill the branch water time: 18 hours
(2), washing
Wash water consumption: 5.5 times/crude bisphenol
Washing temperature: 80 ℃
The washing time: 1.5 hours
(3), refining
Methylene dichloride consumption: 0.48 times/dihydroxyphenyl propane
Dipping temperature: 10-20 ℃
Dipping time: 2.5 hours
Embodiment 4
118.7 kilograms of phenol with 99%, 37.4 kilograms in 98% acetone, 150 kilograms of 98% industrial sulphuric acids, 18.7 kilograms of 98% barium chlorides, 329 kilograms of dimethylbenzene, 1.5 kilograms of Thioglycolic acid sodium salts, 69.8 kilograms of methylene dichloride, through condensation, dilution washing, crystal refining gets 126.8 kilograms of finished product dihydroxyphenyl propanes, and product yield is 89%; Reclaim 312.9 kilograms of dimethylbenzene, the rate of recovery 95.1%; Reclaim 64.4 kilograms of methylene dichloride, the rate of recovery 92.2%.
The main technique condition of present embodiment is:
(1), condensation
The condensation mol ratio, phenol: acetone=1: 0.5
Phenol: sulfuric acid=1: 1.2
Sulfuric acid: barium chloride=1: 0.05
Condensation weight ratio: phenol: dimethylbenzene=1: 2.8
Phenol: Thioglycolic acid sodium salt=1: 0.013
Setting-up point: 10-20 ℃
Condensation churning time: 6 hours.
Dilution washing temperature: 95 ℃
Dilution washing times: 3 times
Each dilution washing time: 2 hours
Temperature is separated out in the dihydroxyphenyl propane crystallization: 10-25 ℃
The dihydroxyphenyl propane cooling and stirring time: 2.5 hours
The dimethylbenzene mother liquor leaves standstill the branch water time: 8 hours
(2), washing
Wash water consumption: 6 times/crude bisphenol
Washing temperature: 85 ℃
The washing time: 1 hour
(3), refining
Methylene dichloride consumption: 0.55 times/dihydroxyphenyl propane
Dipping temperature: 5-15 ℃
Dipping time: 4 hours
Embodiment 5
71.2 kilograms of phenol with 99%, 22.2 kilograms in 98% acetone, 97.5 kilograms of 98% industrial sulphuric acids, 10.4 kilograms of 99% ammonium chlorides, 211.5 kilograms in ethylbenzene, two mercaptos are for 0.35 kilogram of oxalic acid, 52.4 kilograms of methylene dichloride, through condensation, dilution washing, crystal refining gets 74.9 kilograms of finished product dihydroxyphenyl propanes, and product yield is 87.6%; Reclaim 203.7 kilograms in ethylbenzene, the rate of recovery 96.3%; Reclaim 48.6 kilograms of methylene dichloride, the rate of recovery 92.7%.
The main technique condition of present embodiment is:
(1), condensation
The condensation mol ratio, phenol: acetone=1: 0.5
Phenol: sulfuric acid=1: 1.3
Sulfuric acid: ammonium chloride=1: 0.2
Condensation weight ratio: phenol: ethylbenzene=1: 3
Phenol: dithio oxalic acid=1: 0.005
Setting-up point: 10-25 ℃
Condensation churning time: 4 hours.
Dilution washing temperature: 98 ℃
Dilution washing times: 2 times
Each dilution washing time: 1.5 hours
Temperature is separated out in the dihydroxyphenyl propane crystallization: 10-25 ℃
The dihydroxyphenyl propane cooling and stirring time: 3 hours
The ethylbenzene mother liquor leaves standstill the branch water time: 12 hours
(2), washing
Wash water consumption: 6 times/crude bisphenol
Washing temperature: 90 ℃
The washing time: 0.5 hour
(3), refining
Methylene dichloride consumption: 0.7 times/dihydroxyphenyl propane
Dipping temperature: 10-25 ℃
Dipping time: 2.5 hours
Embodiment 6
23.7 kilograms of phenol with 99%, 7.4 kilograms in 98% acetone, 35 kilograms of 98% industrial sulphuric acids, 0.67 kilogram of titanium tetrachloride, 42.2 kilograms of chlorinated benzene, 0.28 kilogram of sulfydryl butyric acid, 20.5 kilograms of methylene dichloride, through condensation, dilution washing, crystal refining gets 25.7 kilograms of finished product dihydroxyphenyl propanes, and product yield is 90.1%; Reclaim 40.4 kilograms of chlorinated benzene, the rate of recovery 95.8%; Reclaim 18.6 kilograms of methylene dichloride, the rate of recovery 90.6%.
The main technique condition of present embodiment is:
(1), condensation
The condensation mol ratio, phenol: acetone=1: 0.5
Phenol: sulfuric acid=1: 1.4
Sulfuric acid: titanium tetrachloride=1: 0.025
Condensation weight ratio: phenol: chlorinated benzene=1: 1.8
Phenol: sulfydryl butyric acid=1: 0.012
Setting-up point: 5-20 ℃
Condensation churning time: 2 hours.
Dilution washing temperature: 100 ℃
Dilution washing times: 2 times
Each dilution washing time: 1 hour
Temperature is separated out in the dihydroxyphenyl propane crystallization: 10-25 ℃
The dihydroxyphenyl propane cooling and stirring time: 4 hours
The chlorinated benzene mother liquor leaves standstill the branch water time: 4 hours
(2), washing
Wash water consumption: 6.5 times/crude bisphenol
Washing temperature: 100 ℃
The washing time: 0.5 hour
(3), refining
Methylene dichloride consumption: 0.8 times/dihydroxyphenyl propane
Dipping temperature: 20-35 ℃
Dipping time: 0.5 hour
Embodiment 7
94.9 kilograms of phenol with 99%, 29.6 kilograms in 98% acetone, 110 kilograms of 98% industrial sulphuric acids, 10.7 kilograms of 34% hydrochloric acid, 228 kilograms of toluene, 1.2 kilograms of Thiovanic acids, 45 kilograms of methylene dichloride, through condensation, dilution washing, crystal refining gets 102.5 kilograms of finished product dihydroxyphenyl propanes, and product yield is 89.9%; Reclaim 215 kilograms of toluene, the rate of recovery 94.3%; Reclaim 41 kilograms of methylene dichloride, the rate of recovery 91.1%.
The main technique condition of present embodiment is:
(1), condensation
The condensation mol ratio, phenol: acetone=1: 0.5
Phenol: sulfuric acid=1: 1.1
Sulfuric acid: hydrogenchloride=1: 0.09
Condensation weight ratio: phenol: toluene=1: 2.4
Phenol: Thiovanic acid=1: 0.0125
Setting-up point: 20-30 ℃
Condensation churning time: 3 hours.
Dilution washing temperature: 90 ℃
Dilution washing times: 2 times
Each dilution washing time: 1.5 hours
Temperature is separated out in the dihydroxyphenyl propane crystallization: 10-25 ℃
The dihydroxyphenyl propane cooling and stirring time: 0.5 hour
The toluene mother liquor leaves standstill the branch water time: 12 hours
(2), washing
Wash water consumption: 7.5 times/crude bisphenol
Washing temperature: 85 ℃
The washing time: 1.5 hours
(3), refining
Methylene dichloride consumption: 0.45 times/dihydroxyphenyl propane
Dipping temperature: 20-25 ℃
Dipping time: 2 hours
The dihydroxyphenyl propane of embodiment one, two, three, four, five, six, seven all meets following product quality indicator:
Quality project quality index
156 ± 1 ℃ of fusing points
Content of bisphenol A 〉=99.5%
Colourity≤molten the method for 30APHA(alcohol)
≤ 130APHA(scorification)
Phenol content≤0.1%
Iron level≤3PPm
Moisture content≤0.1%
The appearance white crystalline powder is transparent inorganic tool impurity liquid after 180 ℃ of fusions.

Claims (4)

1, a kind of with phenol, acetone is the method that raw material is produced polycarbonate-grade bis phenol A, it is characterized in that adopting sulfuric acid and metal chloride or hydrochloric acid as main catalyzer, the carboxylate salt that contains the carboxylic acid of sulfydryl or contain sulfydryl is a cocatalyst, in the solvent of aromatic hydrocarbons or derivatives thereof, make phenol and acetone chemical equivalent according to 1: 0.5 mol ratio, under 5-30 ℃ of temperature, carry out generating in condensation reaction 1-6 hour dihydroxyphenyl propane, the crude bisphenol that generates is through the dilution washing, crystallization, the washing back is flooded with methylene dichloride once more, obtain meeting the dihydroxyphenyl propane of polycarbonate production service requirements, used metal chloride is meant lithium chloride, calcium chloride, magnesium chloride, zinc chloride, lead chloride, bariumchloride, iron(ic) chloride, aluminum chloride, titanium aluminum chloride, titanium tetrachloride and ammonium chloride or other contain the metallic compound of chlorion; The used carboxylic acid that contains sulfydryl is meant the carboxylic acid that has been replaced hydrogen atom on carbon bond by sulfydryl, and the number that sulfydryl replaced is 1-2, and the carbonatoms of carboxylic acid is 1-8, and the carboxylate salt that contains sulfydryl is meant the potassium of above-mentioned carboxylic acid, sodium, calcium, barium, ammonium salt; Used arene derivatives is meant hydrogen atom on the carbon bond of benzene,toluene,xylene, ethylbenzene by the derivative that halogen replaced, and halogen is fluorine, chlorine, bromine, and substituted radical is 1-3; Wherein condensation reaction phenol and vitriolic mol ratio are 1: 0.5-1.5, the mol ratio of sulfuric acid and metal chloride or hydrochloric acid is 1: 0.0025-0.25, the input amount that contains the carboxylic acid of sulfydryl or contain mercaptan carboxylic acid's salt is the 0.04-4% of phenol weight, the input amount of aromatic hydrocarbons or derivatives thereof be phenol weight 1-4 doubly.
2, the method for producing dihydroxyphenyl propane according to claim 1 is characterized in that the resultant dilute with water and the washing of condensation reaction, tells sulfuric acid and its esters or hydrochloric acid, dilutes and washing temperature 70-100 ℃, and the time is 0.1-2 hour.
3, the method for producing dihydroxyphenyl propane according to claim 1, it is characterized in that stirring 0.1-4 hour down at 10-25 ℃, its crystallization is separated out through diluting and washing the crude bisphenol that is dissolved in the aromatic hydrocarbons or derivatives thereof, the crude bisphenol that Crystallization Separation is come out, through washing is refining once more, washing temperature 70-100 ℃, washed time 0.1-2 hour, the methylene dichloride dipping is adopted in the washing back, the methylene dichloride consumption is 0.2-1 a times of dihydroxyphenyl propane quantum of output, dipping temperature 5-35 ℃, and dipping time 0.1-4 hour.
4, the method for producing dihydroxyphenyl propane according to claim 1 is characterized in that the aromatic hydrocarbons or derivatives thereof solvent through condensation reaction, after telling the crude bisphenol crystallization, leaves standstill and tells moisture in 1-24 hour, drops into condensation reaction again and recycles.
CN 92106030 1992-01-22 1992-01-22 Method for preparing polycarbonate-grade bisphenol A Expired - Fee Related CN1024542C (en)

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Application Number Priority Date Filing Date Title
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CN1024542C true CN1024542C (en) 1994-05-18

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CN102491879B (en) * 2011-11-14 2014-05-14 湘潭大学 Preparation method for bisphenol F
JP6635575B2 (en) * 2014-04-25 2020-01-29 日鉄ケミカル&マテリアル株式会社 Phenolic compound having good stability and method for producing the same

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