CN104003430B - A kind of preparation method of polymerize aluminum chloride - Google Patents

A kind of preparation method of polymerize aluminum chloride Download PDF

Info

Publication number
CN104003430B
CN104003430B CN201410269034.0A CN201410269034A CN104003430B CN 104003430 B CN104003430 B CN 104003430B CN 201410269034 A CN201410269034 A CN 201410269034A CN 104003430 B CN104003430 B CN 104003430B
Authority
CN
China
Prior art keywords
catalyst
hydrochloric acid
cracking petroleum
aluminum chloride
sulfuric 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.)
Active
Application number
CN201410269034.0A
Other languages
Chinese (zh)
Other versions
CN104003430A (en
Inventor
王文泽
路庆超
王开宝
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.)
Sanfeng Environmental Group Co.,Ltd.
Original Assignee
SHANDONG SANFENG GROUP 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 SHANDONG SANFENG GROUP CO Ltd filed Critical SHANDONG SANFENG GROUP CO Ltd
Priority to CN201410269034.0A priority Critical patent/CN104003430B/en
Publication of CN104003430A publication Critical patent/CN104003430A/en
Application granted granted Critical
Publication of CN104003430B publication Critical patent/CN104003430B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

A preparation method for polymerize aluminum chloride, belongs to aluminum chloride flocculant production technical field.It is characterized in that, concrete preparation process is: mixed by the mixing acid scrapping catalyst of cracking petroleum and hydrochloric acid and sulfuric acid and carry out normal temperature and pressure acidolysis, scraps catalyst of cracking petroleum, to add proportioning be 80g:250 ~ 350mL:12 ~ 20mL for pure material meter between hydrochloric acid and sulfuric acid; React after the above-mentioned material of acidolysis is left standstill synthesis under normal pressure 50min ~ 60min, obtained polymeric aluminium reaction liquid, the drying of filtrate Direct spraying has been obtained PAC solid articles by reaction solution press filtration.The dissolution time that the present invention makes to scrap unit aluminum oxide in catalyst of cracking petroleum shortens to 50 min from more than 2h, and solubility rate is up to more than 93%.

Description

A kind of preparation method of polymerize aluminum chloride
Technical field
A preparation method for polymerize aluminum chloride, belongs to aluminum chloride flocculant production technical field.
Background technology
Polymerize aluminum chloride is called for short PAC, is a kind of water-soluble inorganic high molecular polymer, has stronger bridge formation adsorptive power.Its purifying water effect is obvious, not only uses pH value range wide, also to pipe-line equipment non-corrosiveness.Be widely used in tap water, trade effluent and sanitary sewage disposal field.At present, the technique that China produces polymerize aluminum chloride is mostly take calcium aluminate powder as main raw material, Al in commercially available calcium aluminate powder 2o 3content is about 55%, but its cost is higher, complex process, filter residue not easily process, cause solid contaminant, and traditional technology is to the Al in calcium aluminate 2o 3solubility rate is also lower, generally about 80%.
Research staff constantly seeks various raw material to prepare polymerize aluminum chloride to reduce production cost all the time.The catalyst of cracking petroleum scrapped is that a kind of solid waste of petroleum industry is extremely difficult.This kind of waste material that common oil refining enterprise produces every year just reaches more than 3000 tons.Scrapping catalyst of cracking petroleum main component mass percent is Al 2o 3account for about 54%, SiO 2account for about 43%.But scrap the unrecovered oil composition that catalyst of cracking petroleum adheres to, and catalyst of cracking petroleum self Al 2o 3and SiO 2between combining form, making to scrap catalyst of cracking petroleum simply cannot utilize hydrochloric acid by Al by traditional method 2o 3composition stripping.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provides that a kind of cost is low, Al 2o 3the preparation method of the polymerize aluminum chloride that solubility rate is high.
The technical solution adopted for the present invention to solve the technical problems is: the preparation method of this polymerize aluminum chloride, is characterized in that, concrete preparation process is:
1) mixing acid 80g being scrapped catalyst of cracking petroleum and 250 ~ 350mL hydrochloric acid and 12 ~ 20mL sulfuric acid mixes and carries out normal temperature and pressure acidolysis; Described composition mass percent of scrapping catalyst of cracking petroleum is Al 2o 345 ~ 65%, SiO 238 ~ 49%, surplus is impurity;
2) after normal pressure acidolysis reaction leaves standstill 50min ~ 60min, obtain polymeric aluminium reaction liquid, the drying of filtrate Direct spraying is obtained PAC solid articles by reaction solution press filtration.
Principal reaction equation is:
Al 2O 3+6 HC 2AlCl 3+3H 2O
AlCl 3+12H 2O Al 2（OH) nCl (6-n)+(12-n) H 2O +nHCl
mAl 2(OH) nCl (6-n)+mH 2O [ Al 2(OH) nCl (6-n).xH 2O] m
Wherein add rear H 2sO 4can REINFORCED Al 2o 3its principal reaction of stripping be:
Al 2O 3+ H 2SO 4 Al 2(SO4) 3+H 2O
H 2O + Al 2(SO4) 3+ 6 HCl AlCl 3+3 H 2SO 4
The H added in the present invention 2sO 4complete katalysis, H appropriate in real reaction 2sO 4add the pH value that not only have adjusted reaction system, also really greatly accelerate speed of reaction.The dissolution time making to scrap unit aluminum oxide in catalyst of cracking petroleum shortens to 50 min from 2h, and successfully solves the unrecovered oil composition scrapped and catalyst of cracking petroleum adheres to, and catalyst of cracking petroleum self Al 2o 3and SiO 2between combining form, make hydrochloric acid simply to be utilized Al by traditional method 2o 3the problem of composition stripping.
Described hydrochloric acid to be mass concentration be 20 ~ 25% hydrochloric acid soln.Select the hydrochloric acid soln of then this concentration, mainly buy preparation convenient, and after joining reaction system, dispersion more rapidly, makes reaction start faster.
Described sulfuric acid to be mass concentration be 98% the vitriol oil.Adding of sulfuric acid mainly accelerates extent of reaction as catalyzer; Preferentially select the vitriol oil of 98% can also improve temperature of reaction after joining reaction system, not only improve speed of reaction, solution convection current can also be accelerated, reaction system is mixed within the shortest time, improves reaction efficiency further.
Being specially by reaction solution press filtration and by the drying of filtrate Direct spraying described in step 2 pumps into diaphragm type plate-and-frame filter press by disposable for reaction solution, press filtration is forced to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate pump is delivered to solution finished product storage tank or is delivered into spray-drying tower and carries out drying, obtained solid articles polymerize aluminum chloride.Production sodium silicate enterprise is transported to outside filter residue.
Described composition mass percent of scrapping catalyst of cracking petroleum is Al 2o 3account for 45 ~ 65%, SiO 2account for 38 ~ 49%, surplus is impurity.The Residual petroleum composition of impurity mainly after the volatilization of short alkene, is attached to catalyst surface and forms protective layer, very difficult.Hydrochloric acid is made to be difficult to the Al with catalyzer 2o 3composition reacts, so when not adding sulfuric acid, simple hydrochloric acid and catalyst of cracking petroleum react, and react away Al 2o 3time needed for composition will far away higher than the dissolving 2h of common aluminum oxide, and solubility rate is very low, reaches 75% at most.After the present invention adds concentrated sulfuric acid catalyst, not only as catalyzer, speed of reaction is improved greatly; Also creating is the heating and the sulphuric acid environment that have cracking, under the effect that catalyst of cracking petroleum grows, has rapid cleavage to remove constantly, and hydrochloric acid is able to and catalyst of cracking petroleum comprehensive engagement.
Because the filtrate of gained PAC material of the present invention is slight alkalinity, the PAC basicity that it reflects, about 70 ~ 80%, meets spray-dired top condition.
Compared with prior art, the beneficial effect that the preparation method of polymerize aluminum chloride of the present invention has: it is to scrap catalyst of cracking petroleum as main raw material that polymerize aluminum chloride of the present invention is produced, adds sulfuric acid in process of production and strengthens Al in slag 2o 3stripping, H 2sO 4complete katalysis, H appropriate in real reaction 2sO 4add the pH value that not only have adjusted reaction system, also really greatly accelerate speed of reaction.The dissolution time making to scrap unit aluminum oxide in catalyst of cracking petroleum shortens to 50 min from 2h, and solubility rate is up to more than 93%.And successfully solve the unrecovered oil composition scrapped and catalyst of cracking petroleum adheres to, and catalyst of cracking petroleum self Al 2o 3and SiO 2between combining form, make hydrochloric acid simply to be utilized Al by traditional method 2o 3the problem of composition stripping.This kind of technique is simple, belong to synthesis under normal pressure, become instinct effectively to control.Reacted filter residue seldom can be transported to cement mill or as the main raw material producing water glass, can not cause any pollution directly outward.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described, and wherein embodiment 1 is most preferred embodiment.Use the catalyst of cracking petroleum of scrapping of same batch to carry out following embodiment and comparative example, detect a point mass percent of scrapping catalyst of cracking petroleum and consist of Al 2o 3account for 45%, SiO 2account for 49%, surplus is impurity.The composition scrapping catalyst of cracking petroleum has catalyzer self-acting to determine, there will not be too large gap, the embodiment of the present invention selects Al 2o 3content is tested substantially when minimum.Work as Al 2o 3reaction efficiency can only be made when content is higher higher.
Embodiment 1
1) mixing acid scrapping catalyst of cracking petroleum and hydrochloric acid and sulfuric acid is mixed carry out normal temperature and pressure acidolysis, scrap catalyst of cracking petroleum, to add proportioning be 80g:300mL:15mL for pure material meter between hydrochloric acid and sulfuric acid; Hydrochloric acid to be mass concentration be 24% hydrochloric acid soln; Sulfuric acid is the vitriol oil of mass concentration 98%.
2) reacted after the above-mentioned material of acidolysis being left standstill synthesis under normal pressure 48min, obtain polymeric aluminium reaction liquid, diaphragm type plate-and-frame filter press is pumped into by disposable for reaction solution, press filtration is forced to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate delivers into spray-drying tower and carries out drying, obtained solid articles polymerize aluminum chloride.The alumina content detected in filter residue obtains Al 2o 3solubility rate is 95.0%, and all the other filter residues are transported outward.
Embodiment 2
1) mixing acid scrapping catalyst of cracking petroleum and hydrochloric acid and sulfuric acid is mixed carry out normal temperature and pressure acidolysis, scrap catalyst of cracking petroleum, to add proportioning be 80g:280mL:13mL for pure material meter between hydrochloric acid and sulfuric acid; Hydrochloric acid to be mass concentration be 20% hydrochloric acid soln.Sulfuric acid is the vitriol oil of mass concentration 98%.
2) reacted after the above-mentioned material of acidolysis being left standstill synthesis under normal pressure 51min, obtain polymeric aluminium reaction liquid, diaphragm type plate-and-frame filter press is pumped into by disposable for reaction solution, press filtration is forced to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate delivers into spray-drying tower and carries out drying, obtained solid articles polymerize aluminum chloride.The alumina content detected in filter residue obtains Al 2o 3solubility rate is 94.3%, and all the other filter residues are transported outward.
Embodiment 3
1) mixing acid scrapping catalyst of cracking petroleum and hydrochloric acid and sulfuric acid is mixed carry out normal temperature and pressure acidolysis, scrap catalyst of cracking petroleum, to add proportioning be 80g:320mL:18mL for pure material meter between hydrochloric acid and sulfuric acid; Hydrochloric acid to be mass concentration be 25% hydrochloric acid soln.Sulfuric acid is the vitriol oil of mass concentration 98%.
2) reacted after the above-mentioned material of acidolysis being left standstill synthesis under normal pressure 50min, obtain polymeric aluminium reaction liquid, diaphragm type plate-and-frame filter press is pumped into by disposable for reaction solution, press filtration is forced to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate delivers into spray-drying tower and carries out drying, obtained solid articles polymerize aluminum chloride.The alumina content detected in filter residue obtains Al 2o 3solubility rate is 94.6%, and all the other filter residues are transported outward.
Embodiment 4
1) mixing acid scrapping catalyst of cracking petroleum and hydrochloric acid and sulfuric acid is mixed carry out normal temperature and pressure acidolysis, scrap catalyst of cracking petroleum, to add proportioning be 80g:250mL:20mL for pure material meter between hydrochloric acid and sulfuric acid; Hydrochloric acid to be mass concentration be 30% hydrochloric acid soln.Sulfuric acid is the sulphuric acid soln of mass concentration 40%.
2) reacted after the above-mentioned material of acidolysis being left standstill synthesis under normal pressure 58min, obtain polymeric aluminium reaction liquid, diaphragm type plate-and-frame filter press is pumped into by disposable for reaction solution, press filtration is forced to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate delivers into spray-drying tower and carries out drying, obtained solid articles polymerize aluminum chloride.The alumina content detected in filter residue obtains Al 2o 3solubility rate is 93.6%, and all the other filter residues are transported outward.
Embodiment 5
1) mixing acid scrapping catalyst of cracking petroleum and hydrochloric acid and sulfuric acid is mixed carry out normal temperature and pressure acidolysis, scrap catalyst of cracking petroleum, to add proportioning be 80g:350mL:12mL for pure material meter between hydrochloric acid and sulfuric acid; Hydrochloric acid to be mass concentration be 25% hydrochloric acid soln.Sulfuric acid is the sulphuric acid soln of mass concentration 35%.
2) reacted after the above-mentioned material of acidolysis being left standstill synthesis under normal pressure 60min, obtain polymeric aluminium reaction liquid, diaphragm type plate-and-frame filter press is pumped into by disposable for reaction solution, press filtration is forced to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate delivers into spray-drying tower and carries out drying, obtained solid articles polymerize aluminum chloride.The alumina content detected in filter residue obtains Al 2o 3solubility rate is 93.1%, and all the other filter residues are transported outward.
Comparative example 1
1) will scrap catalyst of cracking petroleum and mixed in hydrochloric acid carries out normal temperature and pressure acidolysis, it is 80g:350mL that the pure material meter scrapped between catalyst of cracking petroleum and hydrochloric acid adds proportioning; Hydrochloric acid to be mass concentration be 25% hydrochloric acid soln.
2) do not reacting after the above-mentioned material of acidolysis being left standstill synthesis under normal pressure 153min, obtain polymeric aluminium reaction liquid, diaphragm type plate-and-frame filter press is pumped into by disposable for reaction solution, press filtration is forced to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate delivers into spray-drying tower and carries out drying, obtained solid articles polymerize aluminum chloride.The alumina content detected in filter residue obtains Al 2o 3solubility rate is 72%, and all the other filter residues are transported outward.
Comparative example 2
1) catalyst of cracking petroleum will be scrapped with alkaline solution in advance to clean up, my obvious unrecovered oil of surface, scrap catalyst of cracking petroleum and mixed in hydrochloric acid carries out normal temperature and pressure acidolysis, it is 80g:350mL that the pure material meter scrapped between catalyst of cracking petroleum and hydrochloric acid adds proportioning; Hydrochloric acid to be mass concentration be 25% hydrochloric acid soln.
2) do not reacting after the above-mentioned material of acidolysis being left standstill synthesis under normal pressure 124min, obtain polymeric aluminium reaction liquid, diaphragm type plate-and-frame filter press is pumped into by disposable for reaction solution, press filtration is forced to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate delivers into spray-drying tower and carries out drying, obtained solid articles polymerize aluminum chloride.The alumina content detected in filter residue obtains Al 2o 3solubility rate is 81%, and all the other filter residues are transported outward.
Comparative example 3
1) mixing acid scrapping catalyst of cracking petroleum and hydrochloric acid and sulfuric acid is mixed carry out normal temperature and pressure acidolysis, scrap catalyst of cracking petroleum, to add proportioning be 80g:350mL:4mL for pure material meter between hydrochloric acid and sulfuric acid; Hydrochloric acid to be mass concentration be 25% hydrochloric acid soln; Sulfuric acid is the vitriol oil of mass concentration 98%.
2) do not reacting after the above-mentioned material of acidolysis being left standstill synthesis under normal pressure 102min, obtain polymeric aluminium reaction liquid, diaphragm type plate-and-frame filter press is pumped into by disposable for reaction solution, press filtration is forced to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate delivers into spray-drying tower and carries out drying, obtained solid articles polymerize aluminum chloride.The alumina content detected in filter residue obtains Al 2o 3solubility rate is 86%, and all the other filter residues are transported outward.
Comparative example 4
1) mixing acid scrapping catalyst of cracking petroleum and hydrochloric acid and sulfuric acid is mixed carry out normal temperature and pressure acidolysis, scrap catalyst of cracking petroleum, to add proportioning be 80g:350mL:4mL for pure material meter between hydrochloric acid and sulfuric acid; Hydrochloric acid to be mass concentration be 20 ~ 25% hydrochloric acid soln; Sulfuric acid is the sulphuric acid soln of mass concentration 40%.
2) do not reacting after the above-mentioned material of acidolysis being left standstill synthesis under normal pressure 113min, obtain polymeric aluminium reaction liquid, diaphragm type plate-and-frame filter press is pumped into by disposable for reaction solution, press filtration is forced to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate delivers into spray-drying tower and carries out drying, obtained solid articles polymerize aluminum chloride.The alumina content detected in filter residue obtains Al 2o 3solubility rate is 84%, and all the other filter residues are transported outward.
The specific performance Testing index of the PAC product of each embodiment and comparative example gained and the results are shown in Table 1.
The specific performance Testing index of each embodiment of table 1 and comparative example PAC and result
Utilize the polymerize aluminum chloride of this kind of explained hereafter to detect by analysis, indices all meets required by GB/22627-2008.
As can be seen from the reaction process of each embodiment of table 1 and comparative example, in process in leaching, add the effect that appropriate sulfuric acid can play catalyzer, speed of reaction is accelerated greatly, Al 2o 3solubility rate improves greatly.Can finding out when there is no sulfuric acid catalysis from comparative example 1, scrapping catalyst of cracking petroleum and being very difficult to utilize hydrochloric acid stripping, not only stripping slowly and also solubility rate very low, agree with very large waste.Can find out from comparative example 2 and carry out cleaning can accelerate speed of reaction to a certain extent by scrapping catalyst of cracking petroleum, improve solubility rate, but there is no the raising of essence.Can find out that catalytic effect is not very desirable, may be that sulfuric acid is consumed by unrecovered oil when sulphuric acid is not enough from comparative example 3,4, but the vitriol oil add better effects if.As can be seen from Table 1 the performance of PAC that finally obtains of the present invention comparatively comparative example be also significantly improved, and indices all meets required by GB/22627-2008.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.

Claims (2)

1. a preparation method for polymerize aluminum chloride, is characterized in that, concrete preparation process is:
1) mixing acid 80g being scrapped catalyst of cracking petroleum and 250 ~ 350mL hydrochloric acid and 12 ~ 20mL sulfuric acid mixes and carries out normal temperature and pressure acidolysis; Described composition mass percent of scrapping catalyst of cracking petroleum is Al 2o 345 ~ 65%, SiO 238 ~ 49%, surplus is impurity;
2) after normal pressure acidolysis reaction leaves standstill 50min ~ 60min, obtain polymeric aluminium reaction liquid, the drying of filtrate Direct spraying is obtained solid polyaluminium chloride finished product by reaction solution press filtration;
Described hydrochloric acid to be mass concentration be 20 ~ 25% hydrochloric acid soln;
Described sulfuric acid to be mass concentration be 98% the vitriol oil.
2. the preparation method of a kind of polymerize aluminum chloride according to claim 1, it is characterized in that: step 2) in by reaction solution press filtration by the detailed process of filtrate Direct spraying drying be: pump into diaphragm type plate-and-frame filter press by disposable for reaction solution, force press filtration to obtain filtrate for clarification polymeric aluminum chlorides solution through pressure filter, filtrate pump is delivered to solution finished product storage tank or is delivered into spray-drying tower and carries out drying.
CN201410269034.0A 2014-06-17 2014-06-17 A kind of preparation method of polymerize aluminum chloride Active CN104003430B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410269034.0A CN104003430B (en) 2014-06-17 2014-06-17 A kind of preparation method of polymerize aluminum chloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410269034.0A CN104003430B (en) 2014-06-17 2014-06-17 A kind of preparation method of polymerize aluminum chloride

Publications (2)

Publication Number Publication Date
CN104003430A CN104003430A (en) 2014-08-27
CN104003430B true CN104003430B (en) 2015-09-09

Family

ID=51364375

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410269034.0A Active CN104003430B (en) 2014-06-17 2014-06-17 A kind of preparation method of polymerize aluminum chloride

Country Status (1)

Country Link
CN (1) CN104003430B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107010705A (en) * 2017-05-05 2017-08-04 中国科学院生态环境研究中心 A kind of preparation method of rare earth aluminium polychloride water treatment agent
CN107285355B (en) * 2017-08-01 2019-01-04 广西新晶科技有限公司 A method of aluminium polychloride is prepared using discarded anthraquinone regenerative agent
CN108946841A (en) * 2018-08-03 2018-12-07 河北泽世康环保科技有限公司 The method and water quality cleansing agent of water quality cleansing agent are prepared using waste catalyst after Friedel-Crafts reaction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152506A (en) * 1979-05-18 1980-11-27 Asahi Glass Co Ltd Recovery method for valuable substance from waste acid
CN87103009A (en) * 1987-05-06 1987-09-30 德阳市孝泉化工厂 The production method of poly aluminum chloride compound
CN1342779A (en) * 2000-12-29 2002-04-03 张方宇 Process for recovering metals Pt, Re and Al from waste reforming catalyst
CN101591032A (en) * 2009-06-29 2009-12-02 同济大学 The method for preparing modified polyaluminium chloride flocculating agent with the depleted molecular sieve
CN103833060A (en) * 2014-03-24 2014-06-04 南通科纯化工有限公司 Method for producing pure poly aluminum chloride

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152506A (en) * 1979-05-18 1980-11-27 Asahi Glass Co Ltd Recovery method for valuable substance from waste acid
CN87103009A (en) * 1987-05-06 1987-09-30 德阳市孝泉化工厂 The production method of poly aluminum chloride compound
CN1342779A (en) * 2000-12-29 2002-04-03 张方宇 Process for recovering metals Pt, Re and Al from waste reforming catalyst
CN101591032A (en) * 2009-06-29 2009-12-02 同济大学 The method for preparing modified polyaluminium chloride flocculating agent with the depleted molecular sieve
CN103833060A (en) * 2014-03-24 2014-06-04 南通科纯化工有限公司 Method for producing pure poly aluminum chloride

Also Published As

Publication number Publication date
CN104003430A (en) 2014-08-27

Similar Documents

Publication Publication Date Title
CN103420430B (en) Polyaluminum ferrous chloride purifier and production method thereof
US20100155337A1 (en) Process of treating sewage in ternary combination flooding
CN103342406B (en) Polymeric silicic acid-polyferric sulfate titanium inorganic macromolecular composite flocculant and preparation method and application thereof
CN102689999A (en) Resourceful treatment method for silica gel waste water
CN103043759B (en) Method for preparing polyaluminium ferric chloride flocculating agent by pickling waste liquid and waste aluminium material
CN103332666B (en) Sinking agent in a kind of wet-process phosphoric acid concentration treating processes
CN104003430B (en) A kind of preparation method of polymerize aluminum chloride
CN102653411B (en) Process for preparing light-weight calcium carbonate by recycling white mud by alkali
CN103755061B (en) Comprehensive utilization method of phosphoric acid and phosphate industrial wastewater
CN105585179A (en) Recycling method for mold release waste liquor of aluminum profile factory
CN103950991A (en) Waste acid and wastewater treatment process in processes of pickling and purifying quartz or feldspar
CN103288091A (en) Method for preparing white carbon black by utilizing water glass with low modulus through carbonizing method of precipitation
CN100465091C (en) Method for preparing modified silicon oxide using coal series kaolin rock or flyash
CN104512951A (en) Method for co-production of ploysilicate aluminium ferric sulphate and waste water treatment powder by PAC (poly aluminum chloride) residues
CN108455642A (en) A method of it is prepared without slag PAC using efficiently emulsification shear agitation technology
CN102689956A (en) Silicon removing method for silicone waste water
CN102583675A (en) Method for producing poly-silicone sulfuric acid rare earth ferroaluminum with Byer process red mud and sludge containing rear earth
CN102826560A (en) Red mud resource utilization method
CN104593867A (en) Method for preparing in-situ modified nano-magnesium hydroxide whiskers by taking phosphate tailings as raw materials
CN104445330B (en) A kind of production method of ammonia-alum
CN109663392A (en) A kind of process that carbide slag slurries are separated by solid-liquid separation
CN1994881A (en) Method for preparing polysilicate aluminium molten iron processing agent using bauxite gangue
CN101417870B (en) Method for producing architectural materials by using white slime
CN104261539B (en) The method of water purification agent is prepared with waste
CN105540778A (en) Polymeric aluminum ferric chloride flocculant preparation method

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
CP01 Change in the name or title of a patent holder

Address after: No. 693, Yanbei Road, Boshan District, Zibo City, Shandong Province 255200

Patentee after: Sanfeng Environmental Group Co.,Ltd.

Address before: No. 693, Yanbei Road, Boshan District, Zibo City, Shandong Province 255200

Patentee before: SHANDONG SANFENG GROUP Co.,Ltd.

CP01 Change in the name or title of a patent holder