CN1022558C - 从稀盐酸法金红石废母液中提制超细微氧化铁 - Google Patents
从稀盐酸法金红石废母液中提制超细微氧化铁 Download PDFInfo
- Publication number
- CN1022558C CN1022558C CN 90105886 CN90105886A CN1022558C CN 1022558 C CN1022558 C CN 1022558C CN 90105886 CN90105886 CN 90105886 CN 90105886 A CN90105886 A CN 90105886A CN 1022558 C CN1022558 C CN 1022558C
- Authority
- CN
- China
- Prior art keywords
- iron oxide
- ultrafine iron
- iron
- ultrafine
- hydrochloric acid
- 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.)
- Expired - Fee Related
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002699 waste material Substances 0.000 title claims abstract description 23
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000012452 mother liquor Substances 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000002245 particle Substances 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 17
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000001354 calcination Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- 229960004887 ferric hydroxide Drugs 0.000 claims description 11
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 10
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- 239000000460 chlorine Substances 0.000 claims description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052801 chlorine Inorganic materials 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 238000004176 ammonification Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 2
- 239000013543 active substance Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 239000012266 salt solution Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 150000002505 iron Chemical class 0.000 claims 1
- 238000000247 postprecipitation Methods 0.000 claims 1
- 239000010936 titanium Substances 0.000 abstract description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052719 titanium Inorganic materials 0.000 abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011575 calcium Substances 0.000 abstract description 8
- 229910052791 calcium Inorganic materials 0.000 abstract description 8
- 238000007670 refining Methods 0.000 abstract description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052748 manganese Inorganic materials 0.000 abstract description 5
- 239000011572 manganese Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 5
- 230000001590 oxidative effect Effects 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 3
- 238000000227 grinding Methods 0.000 abstract description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 2
- 208000001840 Dandruff Diseases 0.000 abstract 2
- 230000003113 alkalizing effect Effects 0.000 abstract 2
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 abstract 2
- 239000002250 absorbent Substances 0.000 abstract 1
- 230000002745 absorbent Effects 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 239000004411 aluminium Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 7
- 239000000084 colloidal system Substances 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 7
- 229910052749 magnesium Inorganic materials 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 5
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 2
- 101710134784 Agnoprotein Proteins 0.000 description 2
- 229910018626 Al(OH) Inorganic materials 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 2
- 229910010415 TiO(OH) Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 239000004141 Sodium laurylsulphate Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000002801 charged material Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 229910001447 ferric ion Inorganic materials 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- BYGOPQKDHGXNCD-UHFFFAOYSA-N tripotassium;iron(3+);hexacyanide Chemical compound [K+].[K+].[K+].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] BYGOPQKDHGXNCD-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- 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
- C09C1/22—Compounds of iron
- C09C1/24—Oxides of iron
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
从稀盐酸法金红石废母液中提制超细微氧化铁的方法,是以稀盐酸浸取含钛矿石直接生产金红石的废母液为原料,经精制、氧化、加碱(氨水)、过滤干燥、研磨、煅烧制得超细微氧化铁。本发明采用细铁屑一聚丙烯酰胺法精制,即加入粒径2~25毫米的铁屑100~500PPM的聚丙烯酰胺,一个工序钛除去率达99%以上,铝除去率达89%以上。采用半连续式加碱(氨水)法,钙、酸和锰除去率达90%以上。采用本发明方法制得的超细微氧化铁黄和铁红,产品成本低,质量高,色相纯正,色泽鲜艳,可作透明颜料,紫外线吸收剂,作铁酸盐的中间原料。
Description
一种从稀盐酸法金红石废母液中提制超细微氧化铁的方法,适用于含钛矿石生产金红石的废母液为原料提制氧化铁,尤其适用于稀盐酸法浸取钛精矿石直接制取金红石的废母液提制超细微氧化铁。
盐酸法浸取钛精矿石制取金红石废母液排放量大,每生产一吨金红石,排放废母液6立方以上。母液中含有铁、钛、铝、钙、镁、锰等金属元素的氯化物和盐酸,不加处理地排放,既污染环境,又造成资源的浪费。目本专利昭56~37175曾介绍了利用1000cm2/g~3000cm2/g的还原铁粉处理绿矾溶液中的钛的方法,但这种方法只能除去七水硫酸亚铁溶液中的钛,不能除去锰、铝元素,且还原铁粉成本太高,不经济。
本发明的目的在于将盐酸浸取钛精矿石制取金红石的废母液,通过精制,氧化使母液中的钛除去率达99%以上,铝除去率89%以上,成本为上述方法的十分之一,产品质量达到超细微氧化铁标准,使废母液的污染问题得到综合治理。
本发明的方法包括四个部份,即金红石废母液的精制、氧化、氢氧化铁胶体的制备,超细微氧化铁黄的制备,超细微氧化铁红的制备。
1.金红石废母液的精制、氧化
将粒径为2~25毫米的铁屑,加入金红石废母液中,除去盐酸,将Fe3+还原成Fe2+,铁屑中铁含量应高于98%,碳含量应低于0.1%。反应式为:
反应以碘化钾-淀粉试纸检验不变蓝为终点。通过固液分离,取清液用铁屑在50~100℃的温度条件下,处理至PH3.8以上,加入聚沉剂-聚丙烯酰胺,析出TiO(OH)2和Al(OH)3,达到除去钛、铝杂质的目的。聚丙烯酰胺加入量以100~500PPM为宜,添加方式必须在强搅拌下加入,保证聚丙烯酰胺充分被TiO(OH)2Al(OH)3的胶体粒子吸附。反应式为:
将此絮状溶液静置10~120分钟,取上层清液放入氧化塔通入氯气氧化。氧化塔为公知的圆柱形塔,内填40~80%的填料,氯气用99.9%的工业液氯,通气速度为0.5~2.5升/分。以赤血盐溶液检验不呈蓝色为终点。反应式为:
2.氢氧化铁胶体的制备
将上述制得的氧化液加水稀释成FeCl3溶液浓度为0.5~3M(摩尔浓度),在温度为25~70℃强搅拌条件下加入1~5M(摩尔浓度)的氨水,至终点PH值为5~8为止。反应式为:
钙、镁、锰等离子沉淀所需的PH值远远高于三价铁离子的沉淀PH值,当三价铁完全形成氢氧化铁沉淀后,实现了铁与钙、镁、锰等元素的分离,达到除去杂质钙、镁、锰的目的。
氨水加入方式对氢氧化铁胶体和钙、镁、锰等杂质的分离有很大影响。间歇式加氨水,有利于形成细小,均匀的氢氧化铁胶体,但杂质除去率低,连续式加氨水,有利于杂质去除,但形成的氢氧化铁胶体颗粒较大。本发明采用半连续式加氨水,即把所需加氨水分成4~15份,每份连续加入,在停止加氨水后再搅拌相同的时间。这样可保证氢氧化铁胶体粒子细小,均匀和较高的钙、镁、锰离子的除去率。
3.超细微氧化铁黄的制备
将上述所得的无定形氢氧化铁加水,在强烈搅拌下制成铁含量为0.5~15%的浆料,将此浆料放入反应器内,加热至60~95℃,加入铁屑和三价铁盐溶液,反应至体系的PH值为2.5~4,浆料颜色从棕红色变成黄色为止。反应式为:
将反应终止的浆料过滤分离,滤饼用水洗两次后,加水在强搅拌下制成浆,加热到70~90℃,按氧化铁含量的1~8%(重量计)添加阴离子表面活性剂如十二烷基硫酸钠,在中速搅拌下处理1~4小时,按表面活性剂加入量的20~50%(重量计)添加带正电荷的物质如二苯胍处理10~120分钟,使细小的超细微氧化铁黄粒子聚集成大的颗粒,以改善沉淀过滤性能和在树脂中的分散性能。静置、沉降过滤后,将此滤饼反复用水洗至AgNO3检验,不产生白色沉淀为止。再移至40~80℃温度下干燥5~10小时,经研磨后制得超细微氧化铁黄。其粒子外形多为仿垂状,长轴平均粒径0.04~0.06μ,短轴平均粒径0.005~0.015μ,其杂质含量:
TtiO2<0.009%
MnO2<0.02%
Al2O3<0.05%
MgO<0.002%
CaO(%)无
4.超细微氧化铁红的制备
将上述所得的超细微氧化铁黄粉末放入温度为250~400℃的煅烧炉中加热10~120分钟,超细微铁黄发生脱水反应:
煅烧温度过高,过低将使产品的色相、粒径受到影响,而降低产品质量。随着脱水过程进行,颜色由黄变红,冷却后得到超细微氧化铁红。其粒子的外形为仿垂状,长轴平均粒径0.04~0.06μ,短轴平均粒径0.01~0.015μ,杂质含量:
TiO2<0.012%,
Al2O3<0.06%,
MnO2<0.022%,
MgO<0.003%,
CaO(%)无
本发明制超细微氧化铁具有如下特点和优点:
1.以含有大量杂质和还原性盐酸的钛精矿稀盐酸法金红石废母液为原料制取超细微氧化铁、原料易得,价廉。既解决了钛精矿石综合利用中的废液污染,又利用了废水为资源,化害为室,提高了资源的利用率。
2.采用细铁屑-聚丙烯酰胺法精制盐酸法金红石废母液,一个工序可以使母液中的钛去除率99%以上,铝去除率89%以上,成本低,产品质量高。
3.采用半连续式加氨水法,即可使母液中的钙、镁去除率90%以上和部分锰元素。同进又能控制无定形氢氧化铁胶体粒子的粒径。
实施例
稀盐酸法金红石废母液中的化学物质及含量见表1。(表1见文后)
取废母液2升倒入装有铁屑的反应槽,室温下反应96小时,过滤除去未反应的铁屑和机械杂质后,装入反应器,在搅拌下加热到85℃,加粒径不同的细铁屑480克,反应2.5小时,冷却至40~50℃,过滤,倒入沉降槽,在强烈搅拌下添加浓度为10%的聚丙烯酰胺水溶液52毫升,静置90分钟取上层清液,其钛和铝去除率见表2。(表2见文后)
将经平均粒径为3.5毫米的细铁屑处理过的废母液放入填料体积为50%的氧化塔内,以0.55升/分的速度通氯气2.5小时,将氧化后的溶液加水稀释成三氯化铁含量为0.8M(摩尔浓度)的溶液,然后迅速放入反应器,在35℃和高速搅拌下,按连续和半连续式加入浓度为2N(当量)的氨水至终点PH值6.0,其结果见表3。(表3见文后)。
过滤,滤液浓缩后可得氯化铵。滤饼水洗两次后,加水制成铁含量11克/升的浆料,倒入反应器,加热到85℃,添加不同量的硫酸铁和细铁屑125克,维持反应温度1.5小,其结果见表4。(表4见文后)
将硫酸铁用量54.22%处理所得的黄色浆料过滤水洗一次后,用含20克的十二烷基硫酸钠水溶液于80℃下处理40分钟,再用含5克二苯胍水溶液处理15分钟,静置、沉降分层后倾析掉上层清液,再加水洗涤,如此反复操作至洗水用AgNO3检验无白色沉淀为止。过滤、干燥研磨得410克超细微氧化铁黄。其杂质成份和形状见表5。(表5见文后)
将超细微氧化铁黄在320℃下脱水45分钟,制得超细微氧化铁红364克。
表1 废母液中化学物质及含量
化学物质 FeCl3FeCl2MnCl2C2Cl2MgCl2AlCl3TiO2Cl2HCl
含量(g/l) 45.45 214.45 3.48 5.48 45.44 18.80 3.82 103.7
表2 不同粒径的细铁屑的钛、铝去除情况
平均粒径(毫米) 3.5 10 25 45
钛除去率(%) 100 100 98.6 40.4
铝除去率(%) 91.6 90.2 87.4 10.8
表3 加氨水方式对超细微铁黄粒径的影响
加氨水方式 氢氧化铁胶体状态、颜色 超细微铁黄的粒径(μ)
长轴:0.08~0.15
连续加入 粘稠、棕红色、有粗粒子 短轴:0.01~0.02
半连续加入 粘稠、棕红色、颗粒均匀 长轴:0.04~0.06
短轴:0.008~0.015
表4 硫酸铁用量对晶型转化的影响
硫酸铁用量(按铁 晶型转化情况
颜色
的摩尔百分数计)% X-衍射峰 结论
18.02 棕黄色 110、111峰很弱 无定型和α型混合物
26.91 土黄色 110、111峰较强 主要为α型
36.14 黄色 110、111峰很锐 α型
54.22 亮黄色 110、111峰很锐 α型
表5 超细微氧化铁黄杂质成份和形状
形状 仿垂形 长轴粒径0.04~0.06μ
短轴粒径0.01~0.015μ
杂质成份 TiO2:0.007%,Al2O3:0.04%
及含量 MnO2:0.017%,MgO:0.001%
CaO:无
Claims (7)
1、一种由稀盐酸金红石废母液中提出超细微氧化铁的方法,其特征是:在母液中加入粒径2~25毫米的细铁屑,在30~100℃下处理到PH3.8时,加聚丙稀酰胺后沉淀,清液通入氯气氧化后,调为0.5~3M的氯化铁溶液,在25~70℃,强搅拌下半连续式加入氨水至PH5~8,生成氢氧化铁沉淀,制成含铁0.5~15%浆后,依次加入铁屑,三价铁盐,表面活性剂和带正电荷的物质处理,过滤干燥,研磨而得超细微铁黄。
2、根据权利要求1所述的方法,其特征是细铁屑中含铁量应高于98%,含碳量应低于0.1%。
3、根据权利要求1所述的方法,其特征是氧化所用氯气含氯99.9%的工业液氯,通气速度为0.5~2.5升/分。
4、根据权利要求1所述的方法,其特征是半连续式加氨水是把需加入的氨水分成4~15份,每份连续加入,在停止加氨后再搅拌相同的时间。
5、根据权利要求1所述的方法,其特征是氢氧化铁浆料加入铁屑和三价铁盐溶液反应终止PH值为2.5~4,温度为60~95℃。
6、根据权利要求1所述的方法,其特征是聚丙稀酰胺的浓度为100~500ppm的溶液。
7、根据权利要求1所述的方法,所得的超细微氧化铁黄置于250~400℃的锻烧炉中锻烧10~120分钟,可以制得细微氧化铁红。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 90105886 CN1022558C (zh) | 1990-09-17 | 1990-09-17 | 从稀盐酸法金红石废母液中提制超细微氧化铁 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 90105886 CN1022558C (zh) | 1990-09-17 | 1990-09-17 | 从稀盐酸法金红石废母液中提制超细微氧化铁 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1049486A CN1049486A (zh) | 1991-02-27 |
CN1022558C true CN1022558C (zh) | 1993-10-27 |
Family
ID=4879684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 90105886 Expired - Fee Related CN1022558C (zh) | 1990-09-17 | 1990-09-17 | 从稀盐酸法金红石废母液中提制超细微氧化铁 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1022558C (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100336742C (zh) * | 2005-08-10 | 2007-09-12 | 攀钢集团攀枝花钢铁研究院 | 脱除人造金红石母液中钙、镁和铝的方法 |
CN104528834B (zh) * | 2014-12-15 | 2016-02-03 | 宜宾天原集团股份有限公司 | 人造金红石母液资源化利用新方法 |
CN109384263A (zh) * | 2018-11-08 | 2019-02-26 | 中国神华能源股份有限公司 | 一种利用含氯化铁的废酸溶液制备铁黄的方法 |
CN113184917A (zh) * | 2021-04-25 | 2021-07-30 | 湖南雅城新材料有限公司 | 一种钛白副产物中硫酸铁的回收方法 |
CN113184820A (zh) * | 2021-04-25 | 2021-07-30 | 湖南雅城新材料有限公司 | 一种利用钛白副产物硫酸亚铁制备磷酸铁的方法 |
-
1990
- 1990-09-17 CN CN 90105886 patent/CN1022558C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1049486A (zh) | 1991-02-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1106347C (zh) | 一种制备电子管金属氧化物或其水合物的方法以及五氧化铌和五氧化钽粉末 | |
CN101054201A (zh) | 一种除去四氯化钛中钒杂质的方法 | |
CN1193106C (zh) | 从低品位含锌物料制备纳米活性氧化锌的方法 | |
CN112875733A (zh) | 一种黑滑石矿提镁制备纳米级氢氧化镁的方法 | |
CN1415665A (zh) | 钛白废副硫酸亚铁生产氧化铁红颜料的方法 | |
US4268422A (en) | Titanium dioxide hydrate of a particular structure and process of manufacture thereof | |
CN1165488C (zh) | 连续无污染液相二氧化钛制备方法 | |
CN1022558C (zh) | 从稀盐酸法金红石废母液中提制超细微氧化铁 | |
CN1055909A (zh) | 用于制造砷酸铜的方法 | |
CN101497453B (zh) | 由菱镁矿制备六水硫酸镁铵的方法 | |
CN1334782A (zh) | 石灰处理 | |
CN1386710A (zh) | 一种超细氧化铁的生产方法 | |
RU2458945C1 (ru) | Способ получения смешанного коагулянта дигидроксохлорида алюминия и флокулянта кремниевой кислоты | |
CN1024528C (zh) | 氯化镁的生产方法 | |
CN104724740A (zh) | 一种高纯超细氢氧化铝粉的制备方法 | |
CN1333382A (zh) | 从花岗岩生产活性矿液的方法 | |
CN1275874C (zh) | 一种聚合氯化铝净水剂的制备方法 | |
CN1657409A (zh) | 以高岭石为原料制备超纯超细硅粉和硫酸铝的方法 | |
CN1048531A (zh) | 稀土氟化物的制取方法 | |
CN110921805B (zh) | 一种凹凸棒粘土还原-磁分离耦合连续除铁转白提纯方法 | |
CN1506474A (zh) | 含钒熟料浸出液的除磷净化方法 | |
CN1056820C (zh) | 超微重晶石特级粉制造工艺中的制氟防腐方法 | |
CN1102126C (zh) | 用粘土矿物制备白炭黑的煅烧转化反应工艺 | |
CN1133822A (zh) | 氯化铁水溶液的制备方法 | |
CN113072159A (zh) | 一种循环除氯工艺及系统 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |