CN105949823A - Method for coating titanium dioxide by using chloride by-product hydrochloric acid - Google Patents

Method for coating titanium dioxide by using chloride by-product hydrochloric acid Download PDF

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CN105949823A
CN105949823A CN201610362539.0A CN201610362539A CN105949823A CN 105949823 A CN105949823 A CN 105949823A CN 201610362539 A CN201610362539 A CN 201610362539A CN 105949823 A CN105949823 A CN 105949823A
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titanium dioxide
slurry
hydrochloric acid
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salt
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CN105949823B (en
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陈洪
颜华
雷丹
万立
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Yibin Tianyuan Haifeng Hetai Co., Ltd.
Yibin Tianyuan Group Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3692—Combinations of treatments provided for in groups C09C1/3615 - C09C1/3684
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3653—Treatment with inorganic compounds
    • C09C1/3661—Coating
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3669—Treatment with low-molecular organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06—Treatment with inorganic compounds
    • C09C3/063—Coating
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds

Abstract

The invention discloses a method for coating titanium dioxide by using chloride by-product hydrochloric acid. The method comprises the steps of removing impurities of coarse hydrochloric acid for later use, wherein the coarse hydrochloric acid is recycled by washing chlorinated tail gas with water; inorganically coating the titanium dioxide by using zircon salt, silicon salt and aluminum salt, and then coating by using an organic coating agent to obtain a coated titanium dioxide product with good quality. According to the method for coating the titanium dioxide, the acid used by the method is the coarse hydrochloric acid recycled by washing chlorinated tail gas with water, and an inorganic and organic composite coating process is adopted, so that the hydrophilia, pulverization resistance, lightening power and color retention of the titanium dioxide are greatly improved; furthermore, the wetting property, dispersity and covering power of the titanium dioxide in a dispersion medium are improved.

Description

A kind of chlorination by-product hydrochloric acid is for the method for titanium dioxide peplos
Technical field
The present invention relates to the preparation method of a kind of peplos titanium dioxide, be specifically related to a kind of chlorination by-product hydrochloric acid for The method of titanium dioxide peplos.
Background technology
Titanium dioxide formal name used at school is titanium dioxide it is considered to be performance is best in the world a kind of Chinese white, tool There are higher covering power, weatherability, reducing power etc., are widely used in coating, plastics, papermaking, printing The Fine Chemicals such as ink, chemical fibre, rubber, pottery, cosmetics, food and medicine.Produce at present The method of titanium dioxide mainly has sulfuric acid process and two kinds of techniques of chloridising.
Sulfuric acid process is titanium-iron powder and concentrated sulphuric acid to be carried out acidolysis reaction produce titanium sesquisulfate, generates partially through hydrolysis Metatitanic acid, more i.e. obtain titanium dioxide product through calcination, pulverizing.The advantage of this technique can be easy to get so that valency is low Ilmenite and sulphuric acid are raw material, and technology is more ripe, and equipment is simple, and anticorrosive easily solves.Its shortcoming It is long flow path, can only be based on intermittently operated, wet bench, sulphuric acid, water consumption height, refuse and by-product Thing is many, big for environment pollution.
Chloridising be rutile, ilmenite concentrate or high-titanium slag powder are mixed with coke after carry out high-temp chlorination Produce refined titanic chloride, rectification, except vanadium after, carry out high-temperature oxydation, classification, surface process, then pass through Filter, wash, be dried, pulverize and obtain titanium dioxide product.Its advantage is that flow process is short, and production capacity easily expands, The advantages such as continuous and automatic degree is high, and energy consumption is relatively low, and " three wastes " are few, owing to it is in environmental protection and product quality On advantage, chloridising becomes the direction of domestic titanium dioxide industry industrial upgrading.Produce at Titanium Dioxide Produced by Chloride Procedure In, often along with the generation of chlorinated exhaust, condensation afterchlorinate tail gas is containing TiCl4、SiCl4With sour gas such as HCl Body, in order to recycle the HCl gas in chlorinated exhaust, according to TiCl4、SiCl4Facile hydrolysis generates respectively TiOCl2、H4SiO4Colloidal sol and hydrochloric acid, removed by two grades of pickling towers and one-stage water wash tower respectively by chlorinated exhaust TiCl4、SiCl4Deng sour gas, subsequently into Chlorine Scrubber, utilize fresh water (FW) respectively through one-stage water wash Tower and two grades of pickling towers with tail gas countercurrently, generate 20% crude salt acid at one-level pickling tower.
The most surface treated TiO2Pigment has photochemical activity, and Organic substance about can be made to drop Solve, produce powder phenomenon-tion.The TiO of actual application2Pigment must carry out surface process, i.e. at TiO2Granule Surface forms the film of cladding continuously, makes TiO2Barrier together with being formed between granule and Organic substance about. High-quality titanium dioxide is mainly by import, owing to external core technology is blocked, causes domestic titanium dioxide enterprise to produce The rutile conversion ratio of titanium dioxide relatively low, titanium white combination property is poor, in quality and cannot in price The titanium dioxide competition produced with the transnational enterprise such as U.S.,
Summary of the invention
The problem that it is an object of the invention to exist for above-mentioned prior art, it is provided that a kind of chlorination by-product hydrochloric acid is used for The method of titanium dioxide peplos.
A kind of chlorination by-product hydrochloric acid, for the method for titanium dioxide peplos, comprises the following steps:
Chlorination by-product hydrochloric acid refers to the crude salt acid utilizing chlorinated exhaust to obtain after washing, purification, by chlorination tail After gas obtains, by washing, the hydrochloric acid solution that mass concentration is 20%, described crude salt acid solution is entered just deep gouge Carrying out preliminary sedimentation, supernatant enters hydrochloric acid storage tank；Just the bottom underflow in deep gouge enters a membrane filtration system, Filter TiOCl therein2, filtrate hydrochloric acid enters hydrochloric acid storage tank；As the TiOCl that membrane filtration system filters2Reach During limit, carry out backwash operation, with water by TiOCl2Sweeping away, filter membrane enters next filter cycle；When TiOCl is rinsed with water2Time, TiOCl2React with water, generate TiO2With HCl, HCl are dissolved in water shape Hydrochloric acid solution；Containing TiO2The hydrochloric acid solution of solid enters secondary membrane filtration system, filters TiO therein2, Filtrate hydrochloric acid enters hydrochloric acid storage tank；Then the hydrochloric acid pure water that hydrochloric acid storage tank is collected being diluted to mass concentration is 5%～10%, standby；
(1), by crude salt acid pure water being diluted to mass concentration is 5%～10%, standby；
(2) it is, to concentration the tio_2 suspension of 10-30wt%, adds titanium dioxide powder weight The sodium hexameta phosphate of 0.02-0.3%, regulates pH to 8-12 with sodium hydroxide, is stirred for 2-4h, obtains titanium White lead slurry；
(3), in the Titanium dioxide slurry of step (2) gained, regulation temperature is 60-90 DEG C, adds salt Acid for adjusting pH is 7-9, is subsequently adding and adds zirconates, and the addition of zirconates accounts for titanium dioxide powder weight 0.5-2%, 30-100min followed by aging, again with salt acid for adjusting pH to 7-9, recurring 50-90min；
(4), above-mentioned steps (3) gained slurry is regulated temperature to 60-80 DEG C, add water solublity silication Compound, is 7.5-8.6 with salt acid for adjusting pH value, and inactive slurry 30-120min makes silicon with the shape of silicon oxide Formula is deposited in titanium dioxide powder particle surface, wherein, with SiO2The addition of meter water soluble silicon compound For the 0.5-8% of titanium dioxide powder weight, obtain mixed slurry；
(5), in the mixed slurry of above-mentioned steps (4) gained, add water-soluble aluminum salt, be configured to The solution of 20-100g/L, regulates temperature to 60-90 DEG C, and adds sodium hydroxide and make the pH of mixed slurry protect Hold at 8-10, stirring, be subsequently adding hydrochloric acid regulation the most neutral, and be kept stirring for 1-3 Hour, make aluminium salt complete hydrolysis；Wherein, with A12O3The addition of meter water-soluble aluminum salt is titanium dioxide The 1-6% of powder quality, obtains slurry；
(6) sucking filtration, washing, by step (5) gained serosity are carried out, gained filter cake drying, grinding, Obtain the titanium dioxide granule of surface modification；
(7), in step (6) gained titanium dioxide granule, add titanium dioxide granular mass 0.2-1.5wt%'s Organic substance, stirs 30-100min at 40-70 DEG C, obtains Titanium dioxide slurry；
(8), step (7) gained Titanium dioxide slurry is filtered, washing, dry at 100-130 DEG C Dry, size-reduced, i.e. obtain inorganic and organic coated titanium dioxide.
Wherein, in step (2), the effect of sodium hexameta phosphate mainly improves the titanium dioxide dispersibility at slurry, Improve grinding efficiency；
One or more in Disulfatozirconic acid., zirconium oxychloride, zirconium chloride of zirconates described in step (3)；
Water soluble silicon compound described in step (4) is selected from one or both in sodium silicate, sodium metasilicate；
The one in aluminum sulfate, aluminum chloride, the sodium metaaluminate of the water-soluble aluminum salt described in step (5) or Multiple；
Organic substance described in step (7) selected from trimethylolpropane, trimethylolethane, triethanolamine, Neopentyl glycol, silicone oil etc. one or more.
Beneficial effect
The present invention carries out the preparation of titanium dioxide peplos, with often by chlorinated exhaust washing is reclaimed the crude salt acid obtained Rule utilize NaOH alkali liquor directly to wash chlorinated exhaust technique and compare, and have both saved production cost, have created for enterprise again Make new value.
The present invention uses the inorganic titanium dioxide preparing excellent performance with organic composite coating process simultaneously, and it hides Gai Li, weatherability, dispersibility and resistance to chalking etc. are greatly improved.Wherein, aluminum peplos is main Effect is to improve titanium dioxide anti-grinded hardness index, improves glossiness and whiteness, reduces titanium dioxide photochemical activity, Improve weatherability；Silicon peplos is with silica modified titanium dioxide, after it shows to form fine and close thin film, The weatherability of titanium dioxide is especially good, strong covering power；Zirconium peplos can improve the weatherability of titanium dioxide, light Pool degree and durability；Organic coated Main Function is to improve titanium dioxide dispersibility in media as well, different Inorganic agent improves pigment lipophile or hydrophilic, improves coating bin stability, improves gloss of film and titanium White lead reducing power and covering power.Therefore inorganic and organic composite peplos agent is used to greatly improve titanium dioxide Hydrophilic, resistance to chalking, reducing power and colour retention, improve titanium dioxide moistening in disperse medium simultaneously Property, dispersibility and covering power, compared with single organic and inorganic peplos agent, its combination property is more excellent.
Detailed description of the invention
Below in conjunction with embodiments of the invention, the invention will be further elaborated
Embodiment 1
(1), by crude salt acid pure water being diluted to mass concentration is 5%～10%, standby；
(2) it is, to concentration the tio_2 suspension of 10wt%, adds titanium dioxide powder weight The sodium hexameta phosphate of 0.02%, regulates pH to 8 with sodium hydroxide, is stirred for 2h, obtains Titanium dioxide slurry；
(3), in step (2) gained Titanium dioxide slurry, addition salt acid for adjusting pH is 9, is warmed up to 60 DEG C, The most slowly adding Disulfatozirconic acid., the addition of Disulfatozirconic acid. accounts for the 0.5% of titanium dioxide powder weight, followed by aging 30min, again with salt acid for adjusting pH to 7, recurring 50min；
(4), in the mixed powder slurry of step (3) gained, it is warmed up to 70 DEG C, addition sodium silicate (with SiO2Meter) it is the 0.5% of titanium dioxide powder weight, obtain mixed slurry, be 7.5 with salt acid for adjusting pH value, Inactive slurry 30min, makes silicon be deposited in titanium dioxide powder particle surface with the form of silicon oxide；
(5), in the mixed slurry of above-mentioned steps (4) gained, adding aluminum chloride, addition is dioxy Change the 1% of titanium valve weight, be configured to 20g/L (with A12O3Meter) solution, be warmed up to 80 DEG C, and add Entering sodium hydroxide makes the pH of mixed slurry be maintained at 8, stirring, is subsequently adding mineral acid Regulation is to neutral, and when being kept stirring for 1, makes aluminium salt complete hydrolysis, obtain slurry；
(6) sucking filtration, washing, by step (5) gained serosity are carried out, gained filter cake drying, grinding, Obtain the titanium dioxide granule of surface modification；
(7) in step (6) gained titanium dioxide granule, add three hydroxyls of titanium dioxide granular mass 0.2wt% Methylpropane, stirs 30min at 40 DEG C, obtains Titanium dioxide slurry；
(8), step (7) gained Titanium dioxide slurry is filtered, washing, dry at 50 DEG C, warp Pulverizing, i.e. obtain inorganic and organic coated titanium dioxide, the titanium dioxide performance indications after peplos are shown in Table 1.
Embodiment 2
(1), by crude salt acid pure water being diluted to mass concentration is 5%～10%, standby；
(2) it is, to concentration the tio_2 suspension of 20wt%, adds the 0.2% of titanium dioxide powder weight Sodium hexameta phosphate, with sodium hydroxide regulate pH to 10, be stirred for 3h, obtain Titanium dioxide slurry；
(3), in the Titanium dioxide slurry of step (2) gained, it is warmed up to 80 DEG C, adds salt acid for adjusting pH Being 8, the most slowly add zirconium oxychloride, the addition of zirconium oxychloride accounts for the 1% of titanium dioxide powder weight, 60min followed by aging, again with salt acid for adjusting pH to 8, recurring 60min；
(4), by the mixed slurry of above-mentioned steps (3) gained, 70 DEG C are cooled to, addition sodium metasilicate (with SiO2Meter) it is the 3% of titanium dioxide powder weight, it is 8.2 with salt acid for adjusting pH value, inactive slurry 60min, Make silicon be deposited in titanium dioxide powder particle surface with the form of silicon oxide, obtain mixed slurry；
(5) adding aluminum sulfate in the slurry, after step (4) complete hydrolysis, addition is titanium dioxide The 5% of powder quality, is configured to 80g/L (with A12O3Meter) solution, be warmed up to 80 DEG C, and add hydrogen Sodium oxide makes the pH of mixed slurry be maintained at 9, stirring, is subsequently adding hydrochloric acid and regulates extremely Neutrality, and be kept stirring for 2 hours, make aluminium salt complete hydrolysis, obtain slurry；
(6) sucking filtration, washing, by step (5) gained serosity are carried out, gained filter cake drying, grinding, Obtain the titanium dioxide granule of surface modification；
(7) in step (6) gained titanium dioxide granule, add three hydroxyls of titanium dioxide granular mass 1wt% Methyl ethane and neopentyl glycol mixed liquor, stir 90min at 65 DEG C, obtain Titanium dioxide slurry；
(8), step (7) gained Titanium dioxide slurry is filtered, washing, dry at 85 DEG C, warp Pulverizing, i.e. obtain inorganic and organic coated titanium dioxide, the titanium dioxide performance indications after peplos are shown in Table 1.
Embodiment 3
(1), by crude salt acid pure water being diluted to mass concentration is 5%～10%, standby；
(2) it is, to concentration the tio_2 suspension of 30wt%, adds the 0.3% of titanium dioxide powder weight Sodium hexameta phosphate, with sodium hydroxide regulate pH to 12, be stirred for 4h, obtain Titanium dioxide slurry；
(3), in the Titanium dioxide slurry of step (2) gained, it is warmed up to 85 DEG C, adds salt acid for adjusting pH Being 9, the most slowly add zirconium chloride, the addition of zirconium chloride accounts for the 2% of titanium dioxide powder weight, then Ripening 30-100min, again with salt acid for adjusting pH to 9, recurring 90min；
(4), by the mixed slurry of above-mentioned steps (3) gained, 70 DEG C are cooled to, the addition of sodium silicate Amount is (with SiO2Meter) it is the 2% of titanium dioxide powder weight, it is 8.6 with salt acid for adjusting pH value, inactive slurry 120min, makes silicon be deposited in titanium dioxide powder particle surface with the form of silicon oxide, obtains mixed slurry；
(5) adding sodium metaaluminate in the slurry, after step (4) complete hydrolysis, addition is titanium dioxide The 6% of titanium valve weight, is configured to 100g/L (with A12O3Meter) solution, be warmed up to 80 DEG C, and add Sodium hydroxide makes the pH of mixed slurry be maintained at 10, stirring, is subsequently adding hydrochloric acid regulation To neutral, and it is kept stirring for 1.5 hours, makes aluminium salt complete hydrolysis obtain slurry；
(6) sucking filtration, washing, by step (5) gained serosity are carried out, gained filter cake drying, grinding, Obtain the titanium dioxide granule of surface modification；
(7) in step (6) gained titanium dioxide granule, add three hydroxyls of titanium dioxide granular mass 1.5wt% Methyl ethane and silicone oil, stir 100min at 70 DEG C, obtain Titanium dioxide slurry；
(8), step (7) gained Titanium dioxide slurry is filtered, washing, dries at 50-100 DEG C, Size-reduced, i.e. obtain inorganic and organic coated titanium dioxide, the titanium dioxide performance indications after peplos are shown in Table 1.
Table 1, embodiment gained titanium dioxide performance Testing index

Claims (5)

1. the method that a chlorination by-product hydrochloric acid is used for titanium dioxide peplos, it is characterised in that: comprise the following steps:
(1), by crude salt acid pure water being diluted to mass concentration is 5%～10%, standby；
(2) it is, to concentration the tio_2 suspension of 10-30wt%, adds titanium dioxide powder weight The sodium hexameta phosphate of 0.02-0.3%, regulates pH to 8-12 with sodium hydroxide, is stirred for 2-4h, obtains titanium White lead slurry；
(3), in the Titanium dioxide slurry of step (2) gained, regulation temperature is 60-90 DEG C, adds salt Acid for adjusting pH is 7-9, is subsequently adding and adds zirconates, and the addition of zirconates accounts for titanium dioxide powder weight 0.5-2%, 30-100min followed by aging, again with salt acid for adjusting pH to 7-9, recurring 50-90min；
(4), above-mentioned steps (3) gained slurry is regulated temperature to 60-80 DEG C, add water solublity silication Compound, is 7.5-8.6 with salt acid for adjusting pH value, and inactive slurry 30-120min makes silicon with the shape of silicon oxide Formula is deposited in titanium dioxide powder particle surface, wherein, with SiO2The addition of meter water soluble silicon compound For the 0.5-8% of titanium dioxide powder weight, obtain mixed slurry；
(5), in the mixed slurry of above-mentioned steps (4) gained, add water-soluble aluminum salt, be configured to The solution of 20-100g/L, regulates temperature to 60-90 DEG C, and adds sodium hydroxide and make the pH of mixed slurry protect Hold at 8-10, stirring, be subsequently adding hydrochloric acid regulation the most neutral, and be kept stirring for 1-3 Hour, make aluminium salt complete hydrolysis；Wherein, with A12O3The addition of meter water-soluble aluminum salt is titanium dioxide The 1-6% of powder quality, obtains slurry；
(6) sucking filtration, washing, by step (5) gained serosity are carried out, gained filter cake drying, grinding, Obtain the titanium dioxide granule of surface modification；
(7), in step (6) gained titanium dioxide granule, add titanium dioxide granular mass 0.2-1.5wt%'s Organic substance, stirs 30-100min at 40-70 DEG C, obtains Titanium dioxide slurry；
(8), step (7) gained Titanium dioxide slurry is filtered, washing, dry at 100-130 DEG C Dry, size-reduced, i.e. obtain inorganic and organic coated titanium dioxide.
A kind of chlorination by-product hydrochloric acid the most according to claim 1 is for the method for titanium dioxide peplos, and its feature exists In: one or more in Disulfatozirconic acid., zirconium oxychloride, zirconium chloride of the zirconates described in step (3).
A kind of chlorination by-product hydrochloric acid the most according to claim 1 is for the method for titanium dioxide peplos, and its feature exists In: the one or two in sodium silicate, sodium metasilicate of the water soluble silicon compound described in step (4) Kind.
A kind of chlorination by-product hydrochloric acid the most according to claim 1 is for the method for titanium dioxide peplos, and its feature exists In: the one in aluminum sulfate, aluminum chloride, sodium metaaluminate of the water-soluble aluminum salt described in step (5) Or it is multiple.
A kind of chlorination by-product hydrochloric acid the most according to claim 1 is for the method for titanium dioxide peplos, and its feature exists In: the Organic substance described in step (7) selected from trimethylolpropane, trimethylolethane, triethanolamine, Neopentyl glycol, silicone oil etc. one or more.
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CN107216686A (en) * 2017-06-01 2017-09-29 宁海仁元电子材料有限公司 A kind of conductive titanium dioxide production technology
CN107868490A (en) * 2017-11-29 2018-04-03 攀钢集团攀枝花钢铁研究院有限公司 The method of titanium white sial coating
CN109853067A (en) * 2019-03-01 2019-06-07 华东理工大学 A kind of preparation method of viscose rayon delustring titanium dioxide
CN110003687A (en) * 2019-04-26 2019-07-12 龙蟒佰利联集团股份有限公司 Preparation method of special titanium dioxide for high-gloss outdoor coating
CN110484026A (en) * 2019-08-26 2019-11-22 中东金润新材料有限公司 High dispersive chemical-fiber-grade titanium dioxide production technology
CN114149698A (en) * 2021-12-18 2022-03-08 中信钛业股份有限公司 Preparation method of special titanium dioxide for outdoor building coating
CN115651426A (en) * 2022-10-24 2023-01-31 攀钢集团研究院有限公司 Method for preparing titanium white special for printing ink by using hydrochloric acid as chlorination byproduct
CN115651425A (en) * 2022-10-24 2023-01-31 攀钢集团研究院有限公司 Method for using chlorination by-product hydrochloric acid for titanium dioxide mono-aluminum coating
CN115746583A (en) * 2022-12-08 2023-03-07 龙佰禄丰钛业有限公司 Method for producing titanium dioxide by composite parallel flow coating
CN115820001A (en) * 2022-11-28 2023-03-21 攀钢集团研究院有限公司 Method for coating titanium dioxide by using hydrochloric acid as chlorination by-product
CN117089226A (en) * 2023-10-17 2023-11-21 成都先进金属材料产业技术研究院股份有限公司 Coating method for improving weather resistance of titanium dioxide for coating

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CN107216686A (en) * 2017-06-01 2017-09-29 宁海仁元电子材料有限公司 A kind of conductive titanium dioxide production technology
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CN109853067A (en) * 2019-03-01 2019-06-07 华东理工大学 A kind of preparation method of viscose rayon delustring titanium dioxide
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CN110003687A (en) * 2019-04-26 2019-07-12 龙蟒佰利联集团股份有限公司 Preparation method of special titanium dioxide for high-gloss outdoor coating
CN110484026A (en) * 2019-08-26 2019-11-22 中东金润新材料有限公司 High dispersive chemical-fiber-grade titanium dioxide production technology
CN110484026B (en) * 2019-08-26 2020-07-14 中东金润新材料有限公司 Production process of chemical fiber grade titanium dioxide
CN114149698A (en) * 2021-12-18 2022-03-08 中信钛业股份有限公司 Preparation method of special titanium dioxide for outdoor building coating
CN115651426A (en) * 2022-10-24 2023-01-31 攀钢集团研究院有限公司 Method for preparing titanium white special for printing ink by using hydrochloric acid as chlorination byproduct
CN115651425A (en) * 2022-10-24 2023-01-31 攀钢集团研究院有限公司 Method for using chlorination by-product hydrochloric acid for titanium dioxide mono-aluminum coating
CN115820001A (en) * 2022-11-28 2023-03-21 攀钢集团研究院有限公司 Method for coating titanium dioxide by using hydrochloric acid as chlorination by-product
CN115746583A (en) * 2022-12-08 2023-03-07 龙佰禄丰钛业有限公司 Method for producing titanium dioxide by composite parallel flow coating
CN117089226A (en) * 2023-10-17 2023-11-21 成都先进金属材料产业技术研究院股份有限公司 Coating method for improving weather resistance of titanium dioxide for coating
CN117089226B (en) * 2023-10-17 2024-02-02 成都先进金属材料产业技术研究院股份有限公司 Coating method for improving weather resistance of titanium dioxide for coating

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