CN106566275A - Production process of vat olive R - Google Patents

Production process of vat olive R Download PDF

Info

Publication number
CN106566275A
CN106566275A CN201611031540.1A CN201611031540A CN106566275A CN 106566275 A CN106566275 A CN 106566275A CN 201611031540 A CN201611031540 A CN 201611031540A CN 106566275 A CN106566275 A CN 106566275A
Authority
CN
China
Prior art keywords
water
hours
tank
pot
temperature
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.)
Granted
Application number
CN201611031540.1A
Other languages
Chinese (zh)
Other versions
CN106566275B (en
Inventor
徐岳平
徐秀珍
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.)
Jiangyin Great Wall Chemical Co Ltd
Original Assignee
Jiangyin Great Wall Chemical Co Ltd
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 Jiangyin Great Wall Chemical Co Ltd filed Critical Jiangyin Great Wall Chemical Co Ltd
Priority to CN201611031540.1A priority Critical patent/CN106566275B/en
Publication of CN106566275A publication Critical patent/CN106566275A/en
Application granted granted Critical
Publication of CN106566275B publication Critical patent/CN106566275B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B5/00Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/24Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
    • C09B5/26Carbazoles of the anthracene series
    • C09B5/28Anthrimide carbazoles
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D209/00Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/56Ring systems containing three or more rings
    • C07D209/80[b, c]- or [b, d]-condensed

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Cosmetics (AREA)
  • Medicinal Preparation (AREA)

Abstract

The invention discloses a production process of vat olive R. The production process of the vat olive R is characterized by comprising the following specific steps: S1, dehydrogenation condensation; S, acylation loop closing; S3, oxidization and filtering; and S4, grinding, spraying drying, sample making, mixing, quality inspection, preparation of a finished product and warehouse entry. According to the production process, sodium chlorate replaces manganese dioxide to carry out production, so that the production process is greatly simplified; therefore, the production process is more simplified and more convenient to operate; and the production process of the vat olive R is higher in practicability.

Description

A kind of Vat Olive R production technology
Technical field
The present invention relates to Vat Olive R technical field, specially a kind of Vat Olive R production technology.
Background technology
Nineteen ninety builds up 50 tons of Vat Olive Rs of annual output(Vat Olive R is " Vat Black 27 100 ")Workshop, then formally Go into operation, waken up with 1- amino anthracenes by the production technology of FIATBB and 1-chloroanthraquinone is contracted as primary raw material in nitro benzene solvent Close, then Jing is nitrified, reduced, o-dichlorohenzene makees the Benzenecarbonyl chloride. acylation of solvent and closed loop is aoxidized, in order to get rid of poisonous Nitrobenzol Solvent replaced liquid phase condensations in 1993 using solid phase condensation, but the shortcoming of this process route is that operation is long, is related to primary product Plant many.
After 1997, it is referred from written by Japanese thin Tian Feng《Dyestuff chemistry manufacture is theoretical》Data, with Isosorbide-5-Nitrae diaminoanthraquinone- Wake up and 1- amino anthraquinones are primary raw material, and with manganese dioxide make oxidant respectively, sodium hydrosulfite is compiled for the glue oxygen of reducing agent and closes work Skill, and make enemy's agent for Benzenecarbonyl chloride. with benzoic acid in oleum medium with reference to United States Patent (USP), thus make enemyization and close Ring is incorporated in one procedure and carries out.
After 2009, through technological innovation, and manganese dioxide and sodium hydrosulfite is replaced to define current existing using sodium chlorate The easy production process route of comparison employed in production.
The content of the invention
It is an object of the invention to provide a kind of Vat Olive R production technology, the Vat Olive R production technology concrete steps It is as follows:
S1:Dehydrogenative condensation, pot press-in sodium chlorate measuring tank is standby by preparing for the sodium chlorate solution for preparing, and the sulphuric acid that tank car comes is put into Sulphuric acid geosyncline, sample analysis are qualified(>98%), squeeze into sulphuric acid storage tank with submerged pump, then to squeeze into sulfuric acid gauge tank with submerged pump standby With by sulfuric acid gauge tank by 98% sulphuric acid(370L) slowly it is put into condensation pot and put into 1- amino anthracenes in order with 1 hour in the case where companion is stirred Quinone and Isosorbide-5-Nitrae-diamino-anthraquinone, maintain at room temperature 2.5 hours, then by water measuring tank lentamente Deca water in 2-3 hours (480L), water finishes sample analysis condensation acidity, and temperature is less than 62 DEG C, uniform Deca sodium chlorate solution again after maintaining 1 hour (330L), at 58-62 DEG C, after maintaining 2 hours, it is in blackish green or bluish violet to sample and material is observed on sheet glass to temperature control For terminal, in case dilution, add water 3000L in dilution pot, and above-mentioned reaction mass is slowly put under stirring, half an hour is stirred, with pressure Diluted material is pressed into pressure filter by contracting air, presses complete centrifugal pump that hot water in hot water storgae is pumped into into pressure filter washing material, is washed till Neutrality, then material is dried up with compressed air, the laggard rake type dryer of discharging is dried, and is dried to moisture content and is less than 1%, and blowing barrelling is pressed Filter filter, washing liquid enter condensation sedimentation tank, and supernatant overflows into acidproof sewer and processed to three wastes workshop;
S2:Acylated closed loop, oleum is put into oleum storage tank, oleum is squeezed into into oleum with submerged pump by tank car Measuring tank, sample analysis(Sulfur trioxide content 17-22%)It is standby, 20% oleum 280L is slowly put into into acylation by measuring tank In closed loop pot, point 4-5 time plus condensation substance and benzoic mixture in 2 hours(Stirring should be stopped during charging, temperature is less than 55 ℃), in 55-62 DEG C, stirring is maintained 3 hours, is then cooled to 30 DEG C, and by water juice measuring tank Deca water, temperature control is 32 ± 2 DEG C, addition hydroquinone is finished, and maintained at this temperature, until temperature rises to peak, sample on sheet glass Observation material is reaction end in brownish red, is stirred half an hour in cooling, standby;
S3:Oxidation and filtration, add water 200L in oxidation pot, opens stirring and adds 20 kilograms of sodium chlorate, after 15 minutes, receives acylation Closed loop pot material, temperature is less than 55 DEG C, by complete sample analysis acidity, is warming up to 80 DEG C, maintains 2 hours, takes every 15 minutes Sample checks that oxidant whether there is, and such as oxidant is not enough, should every time add 2 kilograms of sodium chlorates, until meeting the requirements, maintains knot Beam, by material mortejus is put into, and with compressed air pressure filter is pressed into, and reusable heat water washing is to neutrality, then dries up discharging barrelling, claims Post processing, sample analysis coloured light, intensity, moisture content etc. are sent into after weight, diafiltration liquid enters acidproof pond, under supernatants after precipitation overflow is entered Water channel, is processed to three wastes workshop;
S4:Sand milling, be spray-dried, draw a design, blending, quality inspection, finished product and warehouse entry, start sanding-pan stirring, add former dyestuff and three The diffusant of/mono- amount of calculation, adds water in right amount, carries out sand milling, and the diffusant of its surplus is added after 20 hours, continues sand milling Sand milling slurry diffusion and pH value is surveyed in 1-2 hours, sampling, it is qualified after use vacuum suction material feeding pot, then with compressed air by sand Defibrination is depressed into grinding machine groove, and material flows into underground groove Jing after sand mill sand milling, material Jing after grinding machine grinds three times to spray drying groove, It is to be spray dried, spray drying tower is preheated, when column bottom temperature rises to 100-110 DEG C, open reciprocating diaphragm pump and related system Pipe valve, by material be delivered to tower top spray gun atomization, during material spray control 85-95 DEG C of column bottom temperature, hot-air from spray tower tower Jacking enter it is parallel with the dyestuff sand milling slurry of atomization in tower and under, into microballon shape dry powder, most of dry powder is from tower for material wink-dry Bottom outlet loads in charging basket, and a small amount of fine powder is fitted in charging basket Jing after cyclone separator, has sprayed from bottom of towe, cyclone separator per criticizing Sampling in charging basket send analysis room to survey moisture content(≤5%), and quality supervision section analysis coloured light, intensity are sent in sampling.With quality supervision section data during blending It is that foundation is allocated, is mixed in blender after crushed, analyzes qualified rear packaging and be commercial dye, after finished product Warehouse entry is preserved.
Preferably, the sodium chlorate solution Wei 30g/L in step S1.
Preferably, the hydroquinone purity in step S2 is that, more than or equal to 99%, addition is 0.8 kilogram, condensation Thing consumption is 80 kilograms, and benzoic acid consumption is 60 kilograms.
Preferably, the sand milling slurry diffusion in step S4 is 5 grades, pH value 7-8.
Compared with prior art, the invention has the beneficial effects as follows:The present invention replaces manganese dioxide to be given birth to using sodium chlorate Produce, greatly simplified production technology so that production technology more simplifies, it is more convenient to operate so that Vat Olive R Production technology has more practicality.
Description of the drawings
Fig. 1 is production technological process of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, to this Invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not For limiting the present invention.
Embodiment 1
A kind of Vat Olive R production technology, the Vat Olive R production technology is comprised the following steps that:
S1:Dehydrogenative condensation, pot press-in sodium chlorate measuring tank is standby by preparing for the sodium chlorate solution for preparing, and the sulphuric acid that tank car comes is put into Sulphuric acid geosyncline, sample analysis are qualified(>98%), squeeze into sulphuric acid storage tank with submerged pump, then to squeeze into sulfuric acid gauge tank with submerged pump standby With by sulfuric acid gauge tank by 98% sulphuric acid(370L) slowly it is put into condensation pot and put into 1- amino anthracenes in order with 1 hour in the case where companion is stirred Quinone and Isosorbide-5-Nitrae-diamino-anthraquinone, maintain at room temperature 2.5 hours, then by water measuring tank lentamente Deca water in 2-3 hours (480L), water finishes sample analysis condensation acidity, and temperature is less than 62 DEG C, uniform Deca sodium chlorate solution again after maintaining 1 hour (330L), at 58-62 DEG C, after maintaining 2 hours, it is in blackish green or bluish violet to sample and material is observed on sheet glass to temperature control For terminal, in case dilution, add water 3000L in dilution pot, and above-mentioned reaction mass is slowly put under stirring, half an hour is stirred, with pressure Diluted material is pressed into pressure filter by contracting air, presses complete centrifugal pump that hot water in hot water storgae is pumped into into pressure filter washing material, is washed till Neutrality, then material is dried up with compressed air, the laggard rake type dryer of discharging is dried, and is dried to moisture content and is less than 1%, and blowing barrelling is pressed Filter filter, washing liquid enter condensation sedimentation tank, and supernatant overflows into acidproof sewer and processed to three wastes workshop;
S2:Acylated closed loop, oleum is put into oleum storage tank, oleum is squeezed into into oleum with submerged pump by tank car Measuring tank, sample analysis(Sulfur trioxide content 17-22%)It is standby, 20% oleum 280L is slowly put into into acylation by measuring tank In closed loop pot, point 4-5 time plus condensation substance and benzoic mixture in 2 hours(Stirring should be stopped during charging, temperature is less than 55 ℃), in 55-62 DEG C, stirring is maintained 3 hours, is then cooled to 30 DEG C, and by water juice measuring tank Deca water, temperature control is 32 ± 2 DEG C, addition hydroquinone is finished, and maintained at this temperature, until temperature rises to peak, sample on sheet glass Observation material is reaction end in brownish red, is stirred half an hour in cooling, standby;
S3:Oxidation and filtration, add water 200L in oxidation pot, opens stirring and adds 20 kilograms of sodium chlorate, after 15 minutes, receives acylation Closed loop pot material, temperature is less than 55 DEG C, by complete sample analysis acidity, is warming up to 80 DEG C, maintains 2 hours, takes every 15 minutes Sample checks that oxidant whether there is, and such as oxidant is not enough, should every time add 2 kilograms of sodium chlorates, until meeting the requirements, maintains knot Beam, by material mortejus is put into, and with compressed air pressure filter is pressed into, and reusable heat water washing is to neutrality, then dries up discharging barrelling, claims Post processing, sample analysis coloured light, intensity, moisture content etc. are sent into after weight, diafiltration liquid enters acidproof pond, under supernatants after precipitation overflow is entered Water channel, is processed to three wastes workshop;
S4:Sand milling, be spray-dried, draw a design, blending, quality inspection, finished product and warehouse entry, start sanding-pan stirring, add former dyestuff and three The diffusant of/mono- amount of calculation, adds water in right amount, carries out sand milling, and the diffusant of its surplus is added after 20 hours, continues sand milling Sand milling slurry diffusion and pH value is surveyed in 1-2 hours, sampling, it is qualified after use vacuum suction material feeding pot, then with compressed air by sand Defibrination is depressed into grinding machine groove, and material flows into underground groove Jing after sand mill sand milling, material Jing after grinding machine grinds three times to spray drying groove, It is to be spray dried, spray drying tower is preheated, when column bottom temperature rises to 100-110 DEG C, open reciprocating diaphragm pump and related system Pipe valve, by material be delivered to tower top spray gun atomization, during material spray control 85-95 DEG C of column bottom temperature, hot-air from spray tower tower Jacking enter it is parallel with the dyestuff sand milling slurry of atomization in tower and under, into microballon shape dry powder, most of dry powder is from tower for material wink-dry Bottom outlet loads in charging basket, and a small amount of fine powder is fitted in charging basket Jing after cyclone separator, has sprayed from bottom of towe, cyclone separator per criticizing Sampling in charging basket send analysis room to survey moisture content(≤5%), and quality supervision section analysis coloured light, intensity are sent in sampling.With quality supervision section data during blending It is that foundation is allocated, is mixed in blender after crushed, analyzes qualified rear packaging and be commercial dye, after finished product Warehouse entry is preserved.
Sodium chlorate solution Wei 30g/L in step S1.
Hydroquinone purity in step S2 is that, more than or equal to 99%, addition is 0.8 kilogram, and condensation substance consumption is 80 kilograms, benzoic acid consumption is 60 kilograms.
Sand milling slurry diffusion in step S4 is 5 grades, pH value 7-8.
The present invention replaces manganese dioxide to be produced using sodium chlorate, greatly simplified production technology so that production work Skill more simplifies, and it is more convenient to operate so that the production technology of Vat Olive R has more practicality.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto, Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.

Claims (4)

1. a kind of Vat Olive R production technology, it is characterised in that:The Vat Olive R production technology is comprised the following steps that:
S1:Dehydrogenative condensation, pot press-in sodium chlorate measuring tank is standby by preparing for the sodium chlorate solution for preparing, and the sulphuric acid that tank car comes is put into Sulphuric acid geosyncline, sample analysis are qualified(>98%), squeeze into sulphuric acid storage tank with submerged pump, then to squeeze into sulfuric acid gauge tank with submerged pump standby With by sulfuric acid gauge tank by 98% sulphuric acid(370L) slowly it is put into condensation pot and put into 1- amino anthracenes in order with 1 hour in the case where companion is stirred Quinone and Isosorbide-5-Nitrae-diamino-anthraquinone, maintain at room temperature 2.5 hours, then by water measuring tank lentamente Deca water in 2-3 hours (480L), water finishes sample analysis condensation acidity, and temperature is less than 62 DEG C, uniform Deca sodium chlorate solution again after maintaining 1 hour (330L), at 58-62 DEG C, after maintaining 2 hours, it is in blackish green or bluish violet to sample and material is observed on sheet glass to temperature control For terminal, in case dilution, add water 3000L in dilution pot, and above-mentioned reaction mass is slowly put under stirring, half an hour is stirred, with pressure Diluted material is pressed into pressure filter by contracting air, presses complete centrifugal pump that hot water in hot water storgae is pumped into into pressure filter washing material, is washed till Neutrality, then material is dried up with compressed air, the laggard rake type dryer of discharging is dried, and is dried to moisture content and is less than 1%, and blowing barrelling is pressed Filter filter, washing liquid enter condensation sedimentation tank, and supernatant overflows into acidproof sewer and processed to three wastes workshop;
S2:Acylated closed loop, oleum is put into oleum storage tank, oleum is squeezed into into oleum with submerged pump by tank car Measuring tank, sample analysis(Sulfur trioxide content 17-22%)It is standby, 20% oleum 280L is slowly put into into acylation by measuring tank In closed loop pot, point 4-5 time plus condensation substance and benzoic mixture in 2 hours(Stirring should be stopped during charging, temperature is less than 55 ℃), in 55-62 DEG C, stirring is maintained 3 hours, is then cooled to 30 DEG C, and by water juice measuring tank Deca water, temperature control is 32 ± 2 DEG C, addition hydroquinone is finished, and maintained at this temperature, until temperature rises to peak, sample on sheet glass Observation material is reaction end in brownish red, is stirred half an hour in cooling, standby;
S3:Oxidation and filtration, add water 200L in oxidation pot, opens stirring and adds 20 kilograms of sodium chlorate, after 15 minutes, receives acylation Closed loop pot material, temperature is less than 55 DEG C, by complete sample analysis acidity, is warming up to 80 DEG C, maintains 2 hours, takes every 15 minutes Sample checks that oxidant whether there is, and such as oxidant is not enough, should every time add 2 kilograms of sodium chlorates, until meeting the requirements, maintains knot Beam, by material mortejus is put into, and with compressed air pressure filter is pressed into, and reusable heat water washing is to neutrality, then dries up discharging barrelling, claims Post processing, sample analysis coloured light, intensity, moisture content etc. are sent into after weight, diafiltration liquid enters acidproof pond, under supernatants after precipitation overflow is entered Water channel, is processed to three wastes workshop;
S4:Sand milling, be spray-dried, draw a design, blending, quality inspection, finished product and warehouse entry, start sanding-pan stirring, add former dyestuff and three The diffusant of/mono- amount of calculation, adds water in right amount, carries out sand milling, and the diffusant of its surplus is added after 20 hours, continues sand milling Sand milling slurry diffusion and pH value is surveyed in 1-2 hours, sampling, it is qualified after use vacuum suction material feeding pot, then with compressed air by sand Defibrination is depressed into grinding machine groove, and material flows into underground groove Jing after sand mill sand milling, material Jing after grinding machine grinds three times to spray drying groove, It is to be spray dried, spray drying tower is preheated, when column bottom temperature rises to 100-110 DEG C, open reciprocating diaphragm pump and related system Pipe valve, by material be delivered to tower top spray gun atomization, during material spray control 85-95 DEG C of column bottom temperature, hot-air from spray tower tower Jacking enter it is parallel with the dyestuff sand milling slurry of atomization in tower and under, into microballon shape dry powder, most of dry powder is from tower for material wink-dry Bottom outlet loads in charging basket, and a small amount of fine powder is fitted in charging basket Jing after cyclone separator, has sprayed from bottom of towe, cyclone separator per criticizing Sampling in charging basket send analysis room to survey moisture content(≤5%), and quality supervision section analysis coloured light, intensity are sent in sampling, with quality supervision section data during blending It is that foundation is allocated, is mixed in blender after crushed, analyzes qualified rear packaging and be commercial dye, after finished product Warehouse entry is preserved.
2. a kind of Vat Olive R production technology according to claim 1, it is characterised in that:Chloric acid in step S1 Sodium solution Wei 30g/L.
3. a kind of Vat Olive R production technology according to claim 1, it is characterised in that:In step S2 to benzene Diphenol purity is that, more than or equal to 99%, addition is 0.8 kilogram, and condensation substance consumption is 80 kilograms, and benzoic acid consumption is 60 kilograms.
4. a kind of Vat Olive R production technology according to claim 1, it is characterised in that:Sand milling in step S4 Slurry diffusion is 5 grades, pH value 7-8.
CN201611031540.1A 2016-11-22 2016-11-22 A kind of Vat Olive R production technology Active CN106566275B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611031540.1A CN106566275B (en) 2016-11-22 2016-11-22 A kind of Vat Olive R production technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611031540.1A CN106566275B (en) 2016-11-22 2016-11-22 A kind of Vat Olive R production technology

Publications (2)

Publication Number Publication Date
CN106566275A true CN106566275A (en) 2017-04-19
CN106566275B CN106566275B (en) 2019-10-11

Family

ID=58542107

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611031540.1A Active CN106566275B (en) 2016-11-22 2016-11-22 A kind of Vat Olive R production technology

Country Status (1)

Country Link
CN (1) CN106566275B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023220A (en) * 1959-10-22 1962-02-27 Gen Aniline & Film Corp Process of preparing anthramid vat dyestuff
US3079398A (en) * 1959-08-08 1963-02-26 Hoechst Ag Process for preparing leuco sulfuric acid esters of vat dyestuffs
GB981041A (en) * 1960-10-28 1965-01-20 Ciba Ltd New anthraquinone dyestuffs and process for their manufacture and use
US3230232A (en) * 1959-12-17 1966-01-18 I C I Organics Inc Process for the preparation of certain anthraquinone-carbazole dyestuffs
US4520202A (en) * 1981-12-09 1985-05-28 Bayer Aktiengesellschaft Process for preparing 4,4'-dibenzoylaminodianthrimidecarbazole

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079398A (en) * 1959-08-08 1963-02-26 Hoechst Ag Process for preparing leuco sulfuric acid esters of vat dyestuffs
US3023220A (en) * 1959-10-22 1962-02-27 Gen Aniline & Film Corp Process of preparing anthramid vat dyestuff
US3230232A (en) * 1959-12-17 1966-01-18 I C I Organics Inc Process for the preparation of certain anthraquinone-carbazole dyestuffs
GB981041A (en) * 1960-10-28 1965-01-20 Ciba Ltd New anthraquinone dyestuffs and process for their manufacture and use
US3338904A (en) * 1960-10-28 1967-08-29 Ciba Ltd Anthraquinone dyestuffs
US4520202A (en) * 1981-12-09 1985-05-28 Bayer Aktiengesellschaft Process for preparing 4,4'-dibenzoylaminodianthrimidecarbazole

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
上海市染化十一厂: ""还原橄榄R新工艺试验成功"", 《染料与染色》 *
刘云 主编: "《日用化学品原材料技术手册》", 31 October 2003, 化学工业出版社 *

Also Published As

Publication number Publication date
CN106566275B (en) 2019-10-11

Similar Documents

Publication Publication Date Title
CN101817989A (en) Method for preparing disperse blue 60 and homologues thereof
CN105967161A (en) Method for continuously preparing low-cost battery grade ferric phosphate by utilizing iron filings
CN101817791B (en) Method for directly producing water soluble aniline black
CN101284949B (en) New process for synthesizing reduced olive T dye
CN111253261A (en) Preparation method of 3, 5-dinitrobenzoic acid
CN106566275A (en) Production process of vat olive R
CN101475487A (en) Recycling use method of nitration acid
CN110229164A (en) Heatproof α type phthalocyanine blue production technology
CN106810412A (en) A kind of production method of the method and Dispersant MF for improving sulfonating reaction efficiency
CN106045813A (en) Ball milling method for preparation of sodium ethoxide
CN108947871A (en) A kind of preparation method of 3- chlorine para-totuidine -6- sulfonic acid
CN211226975U (en) Production device of vinyl sulfate
CN111909061B (en) Production process of 2-amino-3, 6, 8-naphthalene trisulfonic acid
CN104556243B (en) The technique that pigment iron oxide red is prepared in the iron oxide red post processing of a kind of steel mill
CN108752271A (en) A kind of synthetic method of oxyquinoline
CN107033038B (en) The preparation method of probenecid
CN101148658A (en) Double aqueous phase method for extracting superoxide dismutase from animal blood
CN103937769A (en) Method for extracting and recovering papain from waste residue extracted from papain
CN105085333B (en) The preparation method of first sulfanilamide (SN)
CN108623502A (en) A kind of preparation process of 2- naphthylamine sulfonic acids mixture
CN106129441A (en) The cleaning fast preparation method of a kind of vanadium oxysulfate solution and purposes
CN1318512A (en) Method for preparing white carbon uisng kaolin decomposing process
CN102993049A (en) Environment-friendly method for preparing 1,4-diamido-2,3-dicyano anthraquinone
CN1110665A (en) Production of ferrous sulfate monohydrate with liquid-phase forced dewatering method
CN106749304B (en) A kind of method of superacid catalysis hydrolysis 3,4,9,10- tetracarboxylic acid dianhydrides of preparation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant