CN101838004A - Method for removing iron from solution of aluminum chloride - Google Patents

Method for removing iron from solution of aluminum chloride Download PDF

Info

Publication number
CN101838004A
CN101838004A CN201010161899A CN201010161899A CN101838004A CN 101838004 A CN101838004 A CN 101838004A CN 201010161899 A CN201010161899 A CN 201010161899A CN 201010161899 A CN201010161899 A CN 201010161899A CN 101838004 A CN101838004 A CN 101838004A
Authority
CN
China
Prior art keywords
resin
hydrochloric acid
aluminum chloride
solution
liquor alumini
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.)
Pending
Application number
CN201010161899A
Other languages
Chinese (zh)
Inventor
吕子剑
蒋引珊
郭昭华
魏存弟
李楠
李晓兵
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.)
China Shenhua Energy Co Ltd
Shenhua Zhungeer Energy Co Ltd
Original Assignee
China Shenhua Energy Co Ltd
Shenhua Zhungeer Energy 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 China Shenhua Energy Co Ltd, Shenhua Zhungeer Energy Co Ltd filed Critical China Shenhua Energy Co Ltd
Priority to CN201010161899A priority Critical patent/CN101838004A/en
Publication of CN101838004A publication Critical patent/CN101838004A/en
Priority to CN 201110104081 priority patent/CN102249277B/en
Pending legal-status Critical Current

Links

Landscapes

  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

The invention relates to a method for removing iron from solution of aluminum chloride. The method comprises the following steps of: introducing iron-containing solution of aluminum chloride into a resin column; and removing iron by using the iron-adsorbing capacity of the resin to obtain refined solution of aluminum chloride, wherein the pH value of the solution of aluminum chloride is 1.0 to 3.0, the processing temperature is between the room temperature and 90 DEG C, and the flow velocity of the solution of aluminum chloride is 1 to 4-time resin volume per hour. The method has the characteristics of simple process, easily controlled production process and stable product quality; and by adopting the method, the source of raw materials of the solution of aluminum chloride and the following products is widened, and the production cost is lowered.

Description

A kind of method of removing iron from solution of aluminum chloride
Technical field
The present invention relates to a kind of method of removing iron from solution of aluminum chloride, be specifically related to a kind of method that adopts resins exchange is carried out degree of depth deironing to liquor alumini chloridi method.
Background technology
Liquor alumini chloridi is the important liquid starting material of products such as preparation polymerize aluminum chloride, aluminium chlorohydroxide and crystal aluminum chloride.Liquor alumini chloridi is in production or storage and transport process, because the pollution of material purity deficiency or pipeline, container contains a certain amount of iron sometimes.These iron exist in solution with the ionic form.In the process of products such as preparation polymerize aluminum chloride, aluminium chlorohydroxide or crystal aluminum chloride, these iron can enter product inevitably, cause the pollution of iron.Therefore, the iron contamination of removing liquor alumini chloridi is to producing highly purified liquor alumini chloridi, and products such as preparation low iron polymerize aluminum chloride, aluminium chlorohydroxide and low iron crystal aluminum chloride are significant.
But, because there be general being difficult to its removal in iron with highly stable ionic condition in liquor alumini chloridi.Usually adopting aluminium hydroxide or the aluminum oxide handled through deironing in the industrial production is that raw material is produced low iron liquor alumini chloridi.This has limited and has produced the raw material sources of aluminum chloride, and has increased production cost.For because material purity is not enough or be subjected to the iron content liquor alumini chloridi of iron pollution, there is not suitable method for removing iron at present.
Summary of the invention
At the deficiencies in the prior art, the purpose of this invention is to provide a kind of method that adopts resins exchange is carried out degree of depth deironing to liquor alumini chloridi method.
The method of the invention comprises: by resin column, utilize resin that the adsorptive power of iron is carried out deironing ferruginous liquor alumini chloridi, the pH value of wherein said liquor alumini chloridi is 1.0~3.0; Treatment temp is room temperature~90 ℃, and preferable range is 60~80 ℃, the liquor alumini chloridi flow velocity be 1~4 times of resin volume/hour, preferable range be 2~3 times of resin volumes/hour, at last refined crystalline aluminium chloride solution.
As preferred implementation of the present invention, the resin in the resin column is the macroporous type resin cation (R.C.).
Described macroporous type resin cation (R.C.) can be selected D001,732,742,7020H, 7120H, JK008 or SPC-1 etc. for use.
As preferred implementation of the present invention, resin column can adopt the mode of single-column or twin columns polyphone.
As preferred implementation of the present invention, when liquor alumini chloridi was handled through resin column, the mode that goes out on advancing below the liquor alumini chloridi was passed through resin column.
As preferred implementation of the present invention, wash-out and regeneration are carried out to resin in the saturated back of resin absorption, make resin recover adsorptive power.Elution requirement is: eluting temperature is room temperature~60 ℃, preferable range is 30~50 ℃, eluent employing water or mass concentration are 2~10% hydrochloric acid, preferable range is that mass concentration is 3~5% hydrochloric acid, the eluent consumption is 1~3 times of resin volume, the eluent flow velocity be 1~3 times of resin volume/hour.Temperature is room temperature~60 ℃ during regeneration, and adopting mass concentration is 2~10%, and preferable range is that mass concentration is 3~5% hydrochloric acid, and the hydrochloric acid consumption is 1~2 times of resin volume, the hydrochloric acid flow velocity be 1~3 times of resin volume/hour.
As preferred implementation of the present invention, during wash-out, eluent passes through resin column in the enterprising mode that goes out down.
As preferred implementation of the present invention, during regeneration, hydrochloric acid passes through resin column in the enterprising mode that goes out down.
After deironing, the concentration of iron can be reduced to below 0.3 mg/litre (in ferric oxide) in the solution.
Usefulness of the present invention is that production technique is simple, and production process is easy to control, the characteristics of constant product quality.Adopt this method, can enlarge the raw material sources of liquor alumini chloridi and subsequent product thereof, reduce production costs.
Embodiment
Below in conjunction with embodiment explanation the present invention, but the present invention is not restricted to this.
Embodiment 1
To contain aluminium 98 grams per liters (in aluminum oxide), iron content 1.5 grams per liters (in ferric oxide), the pH value is 1.5, temperature is 65 ℃ a liquor alumini chloridi, is pressed into the resin column of adorning D001 (Wan Dong chemical plant, Anhui) resin with noncorrosive pump, carries out deironing with the mode of single-column.During processing the liquor alumini chloridi flow velocity be 2 times of resin volumes/hour.After deironing was handled, the refined crystalline aluminium chloride liquid that obtains contained aluminium 96 grams per liters (in aluminum oxide), and iron content 0.25 mg/litre (in ferric aluminum oxide), pH value are 1.5, and temperature is 55 ℃.
After resin absorption is saturated, make resin recover adsorptive power through wash-out and regeneration, elution requirement is: eluent adopts water, 40 ℃ of eluting temperatures, flow velocity be 1 times of resin volume/hour, adopt the water of 3 times of resin volumes during wash-out altogether; Adopting mass concentration during regeneration is 5% hydrochloric acid, and temperature is a room temperature, the hydrochloric acid flow velocity be 3 times of resin volumes/hour, adopt the hydrochloric acid of 2 times of resin volumes during regeneration altogether.
Embodiment 2
To contain aluminium 80 grams per liters (in aluminum oxide), iron content 1.3 grams per liters (in ferric oxide), pH value are 1.9, and temperature is 75 ℃ a liquor alumini chloridi, be pressed into the resin column of adorning 732 (Anhui Samsung resin Science and Technology Ltd.) resin with noncorrosive pump, carry out deironing with the mode of twin columns polyphone.During processing the liquor alumini chloridi flow velocity be 4 times of resin volumes/hour.After deironing was handled, the refined crystalline aluminium chloride liquid that obtains contained aluminium 78 grams per liters (in aluminum oxide), and iron content 0.20 mg/litre (in ferric oxide), pH value are 1.9, and temperature is 65 ℃.
After resin absorption is saturated, make resin recover adsorptive power through wash-out and regeneration, elution requirement is: eluent employing mass concentration is 2% hydrochloric acid, 30 ℃ of eluting temperatures, the hydrochloric acid flow velocity be 1 times of resin volume/hour, adopt the hydrochloric acid of 2 times of resin volumes during wash-out altogether; Adopting mass concentration during regeneration is 2% hydrochloric acid, and temperature is a room temperature, the hydrochloric acid flow velocity be 2 times of resin volumes/hour, adopt the hydrochloric acid of 1 times of resin volume during regeneration altogether.
Embodiment 3
To contain aluminium 90 grams per liters (in aluminum oxide), iron content 1.4 grams per liters (in ferric oxide), pH value are 1.0, and temperature is 90 ℃ a liquor alumini chloridi, be pressed into the resin column that JK008 (Wan Dong chemical plant, Anhui) resin is housed with noncorrosive pump, carry out deironing with the mode of twin columns polyphone.During processing the liquor alumini chloridi flow velocity be 3 times of resin volumes/hour.After deironing was handled, the refined crystalline aluminium chloride liquid that obtains contained aluminium 87 grams per liters (in aluminum oxide), and iron content 0.22 mg/litre (in ferric oxide), pH value are 1.0, and temperature is 78 ℃.
After resin absorption is saturated, make resin recover adsorptive power through wash-out and regeneration, elution requirement is: eluent employing mass concentration is 8% hydrochloric acid, 60 ℃ of eluting temperatures, the hydrochloric acid flow velocity be 3 times of resin volumes/hour, adopt the hydrochloric acid of 2 times of resin volumes during wash-out altogether; Adopting mass concentration during regeneration is 8% hydrochloric acid, and temperature is 50 ℃, the hydrochloric acid flow velocity be 2 times of resin volumes/hour, adopt the hydrochloric acid of 1 times of resin volume during regeneration altogether.

Claims (10)

1. the method for a removing iron from solution of aluminum chloride comprises: by resin column, the pH value of wherein said liquor alumini chloridi is 1.0~3.0 with ferruginous liquor alumini chloridi; Treatment temp is room temperature~90 ℃; The liquor alumini chloridi flow velocity be 1~4 times of resin volume/hour, at last refined crystalline aluminium chloride solution.
2. method according to claim 1 is characterized in that, liquor alumini chloridi is 60~80 ℃ by the treatment temp of resin column.
3. method according to claim 1 and 2 is characterized in that, the flow velocity of liquor alumini chloridi be 2~3 times of resin volumes/hour.
4. method according to claim 1 is characterized in that, resin column adopts the mode of single-column or twin columns polyphone.
5. method according to claim 1 is characterized in that, resin is the macroporous type resin cation (R.C.) in the resin column.
6. method according to claim 5 is characterized in that, resin is D001,732,742,7020H, 7120H, JK008 or SPC-1.
7. method according to claim 1, it is characterized in that, wash-out and regeneration are carried out to resin in the saturated back of resin absorption in the resin column, wherein elution requirement is: eluting temperature is room temperature~60 ℃, eluent employing water or mass concentration are 2~10% hydrochloric acid, the eluent consumption is 1~3 times of resin volume, the eluent flow velocity be 1~3 times of resin volume/hour; Temperature is room temperature~60 ℃ during regeneration, and adopting mass concentration is 2~10% hydrochloric acid, and the hydrochloric acid consumption is 1~2 times of resin volume, the flow velocity of hydrochloric acid be 1~3 times of resin volume/hour.
8. method according to claim 7 is characterized in that, the resin elution temperature is 30~50 ℃.
9. according to claim 7 or 8 described methods, it is characterized in that eluent is that water or mass concentration are 3~5% hydrochloric acid.
10. method according to claim 7 is characterized in that, the employing mass concentration is 3~5% hydrochloric acid during regeneration.
CN201010161899A 2010-04-27 2010-04-27 Method for removing iron from solution of aluminum chloride Pending CN101838004A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201010161899A CN101838004A (en) 2010-04-27 2010-04-27 Method for removing iron from solution of aluminum chloride
CN 201110104081 CN102249277B (en) 2010-04-27 2011-04-25 Method for deironing aluminum chloride solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010161899A CN101838004A (en) 2010-04-27 2010-04-27 Method for removing iron from solution of aluminum chloride

Publications (1)

Publication Number Publication Date
CN101838004A true CN101838004A (en) 2010-09-22

Family

ID=42741716

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201010161899A Pending CN101838004A (en) 2010-04-27 2010-04-27 Method for removing iron from solution of aluminum chloride
CN 201110104081 Active CN102249277B (en) 2010-04-27 2011-04-25 Method for deironing aluminum chloride solution

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN 201110104081 Active CN102249277B (en) 2010-04-27 2011-04-25 Method for deironing aluminum chloride solution

Country Status (1)

Country Link
CN (2) CN101838004A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103288115A (en) * 2013-05-08 2013-09-11 中国神华能源股份有限公司 Method for removing metal ion impurities in aluminium chloride solution by multistage resin columns
CN103435080A (en) * 2013-08-22 2013-12-11 中国神华能源股份有限公司 Method for extracting and de-ironing aluminum chloride slurry

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106119555B (en) * 2016-06-23 2018-10-12 中国神华能源股份有限公司 A method of extracting scandium from flyash
CN112811468B (en) * 2020-12-25 2023-05-23 四川省绵阳市华意达化工有限公司 Method for improving quality of chromic anhydride

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652433A (en) * 1986-01-29 1987-03-24 Florida Progress Corporation Method for the recovery of minerals and production of by-products from coal ash
CN86100720B (en) * 1986-02-05 1988-05-11 中国科学院化工冶金研究所 Extraction of iron from aluminium sulfate solution with tertiary amine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103288115A (en) * 2013-05-08 2013-09-11 中国神华能源股份有限公司 Method for removing metal ion impurities in aluminium chloride solution by multistage resin columns
CN103288115B (en) * 2013-05-08 2016-03-16 中国神华能源股份有限公司 The method of impurity metal ion in multistage resin column removing liquor alumini chloridi
CN103435080A (en) * 2013-08-22 2013-12-11 中国神华能源股份有限公司 Method for extracting and de-ironing aluminum chloride slurry
CN103435080B (en) * 2013-08-22 2015-12-09 中国神华能源股份有限公司 A kind of method of aluminum chloride slurry extraction deironing

Also Published As

Publication number Publication date
CN102249277B (en) 2013-04-17
CN102249277A (en) 2011-11-23

Similar Documents

Publication Publication Date Title
CN102730721B (en) Recovering method of by-product sodium chloride in polyphenylene sulfide production
CN102249277B (en) Method for deironing aluminum chloride solution
CN102417194A (en) Method for deeply removing magnesium through chelating resin for extracting lithium from salt lake brine
CN110885147B (en) Ion exchange defluorination method for efficiently complexing fluorine-containing wastewater
CN103288115B (en) The method of impurity metal ion in multistage resin column removing liquor alumini chloridi
CN102701465B (en) Method for decalcifying sea water by using flue gas
CN104673872A (en) Method for recycling DCPC (deacetyl cephalosporin C) from cephalosporin C resin adsorption waste liquor
CN102092754A (en) Method for removing impurity iron in aluminum sulfate solution through ion exchange
CN105085318A (en) Purification method of acetonitrile for high performance liquid chromatographic analysis
WO2012149182A3 (en) Automated synthesis of small molecules using chiral, non-racemic boronates
CN101274899A (en) Purification desalination process in L-carnitine production by electrodialysis
CN103012186B (en) Method for recycling paracetamol from refined mother liquor by using adsorption resin
CN106086405A (en) A kind of purifying and impurity-removing method of high salt Chloride System
WO2008129757A1 (en) Process for production of bisphenol a
CN105669511B (en) A kind of hydroxyproline refining methd
CN102153118A (en) Method for producing metallurgical-grade aluminum oxide by using iron-containing aluminum chloride solution
CN110128467A (en) A kind of process of purification of glycerol phosphatidyl choline crude product and its obtained glycerolphosphocholine
Li et al. Separation of Cs+ from Rb+ and Cs+ co-existing solution by Cs3Bi2I9 precipitation to produce CsI
JP4696333B2 (en) Boron recovery method
CN103572062A (en) Method for recovering vanadium from desilication slag
CN108484423A (en) A method of isolating and purifying l-Alanine from l-Alanine zymotic fluid
CN105668601A (en) Method for preparation of polyaluminum chloride from aluminum-containing waste residue
CN111303002B (en) Method for treating fosinopril intermediate mother liquor
CN101085731B (en) Method for reclaiming oxalic acid from terramycin purification liquid
CN101085749A (en) Method for separating terramycin

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20100922