A process for producing polyaluminium chloride - Google Patents
the present invention relates to a process for production of polyaluminium chloride solution, which process comprises mixing hydrogen chloride with, and bringing it to react with, under...
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EP 0884278 A1 19981216 - A process for producing ...
A process for production of polyaluminium chloride solution, which process comprises mixing hydrogen chloride with, and bringing it to react with, under heating, aluminium hydroxide and a sulphate-containing press cake, whereby at least part of said reaction is
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Continuous production process for polyaluminium chloride and ...
The method comprises the steps of preparing uniform mushy slurry with a solid material and water; inputting the slurry and hydrochloric acid into a reactor for hybrid reaction; maintaining the...
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CN111908491A - Process for producing polyaluminum chloride ...
The invention relates to the technical field of polyaluminium chloride production methods, in particular to a process for producing polyaluminium chloride by using waste aluminium slag and...
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A process for producing polyaluminium chloride - AKZO NOBEL NV
The method comprises the steps of preparing uniform mushy slurry with a solid material and water; inputting the slurry and hydrochloric acid into a reactor for hybrid reaction; maintaining the reaction and a proper reaction temperature during the maturing process
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PROCESS FOR THE PRODUCTION OF POLYALUMINIUM SALTS
The present invention relates to a process for the production of polyaluminium salts, preferably polyaluminium sulphate and polyaluminium chloride, and derivatives thereof, from aluminium containing raw materials and acids, wherein microwaves are used for partial heating of the reaction mixture.
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A process for producing polyaluminium chloride - Google ...
the present invention relates to a process for production of polyaluminium chloride solution, which process comprises mixing hydrogen chloride with, and bringing it to react with, under heating, aluminium hydroxide and a sulphate-containing press cake, whereby at least part of said reaction is carried out at overpressure, and that said part is heated to a temperature above the upper limit of ...
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A process for producing polyaluminium chloride - Google ...
EP0884278A1 - A process for producing polyaluminium chloride - Google Patents A process for producing polyaluminium chloride Download PDF Info Publication number EP0884278A1 EP0884278A1 EP97201763A EP97201763A EP0884278A1 EP 0884278 A1 ...
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Method for producing polyaluminium chloride - Google Patents ...
The invention relates to a method for producing polyaluminium chloride, which comprises the following steps: adding aluminum-containing waste residue into solution of hydrochloric acid and reacting at 90 to 120 DEG C and under a normal pressure for 3 to 5 hours ...
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Production process of polyaluminum chloride - Google Patents ...
The invention discloses a production process of polyaluminium chloride, which comprises the steps of taking aluminium hydroxide, calcium aluminate powder and hydrochloric acid as main raw materials to produce polyaluminium chloride, adding the aluminium ...
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PROCESS FOR THE PRODUCTION OF POLYALUMINIUM SALTS - Justia ...
The present invention relates to a process for the production of polyaluminium salts, preferably polyaluminium sulphate and polyaluminium chloride, and derivatives thereof, from aluminium containing raw materials and acids, wherein microwaves are used for partial ...
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Production process of high-concentration polyaluminium chlor ...
The invention relates to a production process of high-concentration polyaluminium chloride. Polyaluminium chloride is prepared from aluminum hydroxide, calcium aluminate powder and industrially synthesized hydrochloric acid as main raw materials. The production ...
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Polyaluminium Chloride | PDF | Water Purification - Scribd
This document provides information about a polyaluminum chloride (PAC) production process. It describes the advantages of the proposed improved PAC process over conventional processes, including producing PAC with higher concentrations and basicity. The key products are an 18% Al2O3 PAC and a 9% Al2O3 PAC. A typical plant would produce 30,000 tons of PAC per year. The process involves reacting ...
Get PriceMethod for producing polyaluminium chloride - Google Patents ...
The invention relates to a method for producing polyaluminium chloride, which comprises the following steps: adding aluminum-containing waste residue into solution of hydrochloric acid and reacting at 90 to 120 DEG C and under a normal pressure for 3 to 5 hours ...
Get PriceAuthor's personal copy - ResearchGate
Author's personal copy Alternative cost-effective preparation method of polyaluminium chloride (PAC) coagulant agent: Characterization and comparative application for water/wastewater treatment A ...
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Process for the production of polyaluminium salts - Google ...
the present invention relates to a process for the production of polyaluminium salts and derivatives thereof, wherein an aluminium containing material is mixed with an acidic compound, and the mixture is heated to a temperature of 150-250 C. and maintained at that temperature using micro-waves, optionally in combination with another heat source, said mixture maintained at said temperature is ...
Get Price... - New process for directly producing poly aluminum ... ...
A kind of novel process with bauxite direct production poly aluminium chloride, its process step is following: 0.8 ton of water is placed 5M 3 Withstand voltage acid tolerance response pot in, then with 1.2 tons of alumina content Al 2 O 3 The bauxite powder that>=37wt.%, fineness 60 orders 80% sieve adds in the reactor, begins to stir, and 60 rev/mins of stirring velocitys add 2.4M again in ...
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Production process of high-concentration polyaluminium ...
The invention relates to a production process of high-concentration polyaluminium chloride. Polyaluminium chloride is prepared from aluminum hydroxide, calcium aluminate powder and industrially synthesized hydrochloric acid as main raw materials. The production ...
Get PriceProcess for preparing polyaluminium chloride - Google ...
A process for preparing polyaluminium chloride from gaolin or coal-series gaolin by one-step method includes breaking raw material, calcining, reaction of raw material witt hydrochloric acid and regulator, solid-liquid separation to obtain liquid of polyaluminium ...
Get PriceCN101037212A - Technical process for producing ... - Google ...
Production method of polyaluminium chloride CN102372299A (en) * 2010-08-08 2012-03-14 嘉善绿野环保材料厂 Preparation method of poly aluminum chloride in high purity CN101531389B (en) * 2009-03-26 2012-06-27 Method for
Get PriceA process for producing polyamminium chloride - Google ...
A process for production of polyaluminium chloride solution, which process comprises mixing hydrogen chloride with, and bringing it to react with, under heating, aluminium hydroxide and a sulphate-containing press cake, whereby at least part of said reaction is ...
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— Illl INI II III II I III 1 1 II II I II OJII ...
(54) A process for producing polyaluminium chloride (57) A process for production of polyaluminium chloride solution, which process comprises mixing hydrogen chloride with, and bringing it to react with, under heating, aluminium containing press cake ...
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EP0383736A1 - Process for the preparation of polyaluminium c ...
The present invention relates to a process for the preparation of polyaluminium hydroxychloride complexes having the general formula Al(OH) x Cl y in solution or in solid form and intended to be used as flocculants and coagulants at water purification, sludge dewatering, plant dewatering and paper production, whe reby one reacts aluminium chloride in solution with aluminium hydroxide, or ...
Get PriceWO2008150211A1 - Process for the production of polyaluminium ...
the present invention relates to a process for the production of polyaluminium salts and derivatives thereof, wherein an aluminium containing material is mixed with an acidic compound, and the mixture is heated to a temperature of 150-250 0 C and maintained at that temperature using microwaves, optionally in combination with another heat source, said mixture maintained at said temperature is ...
Get PriceEP2158160A4 - Process for the production of polyaluminium sa ...
Process for the production of polyaluminium salts Info Publication number EP2158160A4 EP2158160A4 ... Authority EP European Patent Office Prior art keywords production polyaluminium salts polyaluminium salts Prior art date 2007-06-08 Legal status (The ...
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CN101784485A - Process for the production of polyaluminium s ...
The present invention relates to a process for the production of polyaluminium salts, preferably polyaluminium sulphate and polyaluminium chloride, and derivatives thereof, from aluminium containing raw materials and acids, wherein microwaves are used for partial ...
Get PriceDifferences in behaviour of three biopolymer constituents in ...簡
Differences in behaviour of three biopolymer constituents in coagulation with polyaluminium chloride: Implications for the optimisation of a coagulation-membrane filtration process. Water Research ( IF 11.4 ) Pub Date : 2018-02-07 , DOI: 10.1016/j.watres.2018.01.034
Get PriceCN112408442A - Process for producing polyaluminum chloride ...
The invention belongs to the technical field of polyaluminium chloride production, in particular to a process for producing polyaluminium chloride by using regenerated waste alumina, which solves the problems of resource waste, environmental pollution, low recycling ...
Get PricePOLYALUMINIUM CHLORIDE - Ataman Kimya A.Ş.
PolyAluminium Chloride production is one of the most exigent process for glass-lined equipement due to its high corrosive and abrasive effect. That's why, the experience and the qualification of De Dietrich Process Systems allow to meet qualitatively those
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EP2158160A1 - Process for the production of polyaluminium ...
The present invention relates to a process for the production of polyaluminium salts, preferably polyaluminium sulphate and polyaluminium chloride, and derivatives thereof, from aluminium containing raw materials and acids, wherein microwaves are used for partial ...
Get PriceAuthor's personal copy - ResearchGate
Author's personal copy Alternative cost-effective preparation method of polyaluminium chloride (PAC) coagulant agent: Characterization and comparative application for water/wastewater treatment A ...
Get Price
Procedure : Specification for Water Treatment Chemical ...
7.2.1 Labelling requirements (written in both Bahasa Malaysia and English) shall apply to Polyaluminium Chloride and shall comply with the requirements of the Regulation 6,7,8,9,10,11,12 of the Occupational Safety and Health (Classification, Labelling and Safety
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CN110194474B - Process for producing polyaluminium chloride ...
The process method for producing the polyaluminium chloride and the calcium aluminate by utilizing the aluminum ash comprises the following steps: (1) frying ash, and recovering metal aluminum to obtain secondary aluminum ash; (2) carrying out deamination
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CN114084896A - Process for directly producing polyaluminium ...
The invention discloses a process for directly producing polyaluminium chloride by hydrolyzing organic silicon high-boiling residues, and relates to the technical field of organic silicon high-boiling residue treatment. The method comprises the following steps: s1, filling ...
Get PriceHow PAC is used in pulp & paper industry?
PAC:s are also used in the pulp and paper industry. The problem to be solved by the present invention is thus to provide a process for production of a stable PAC from aluminum hydroxide, press cake and hydrogen chloride, which PAC contains more than about 6 % by weight of aluminum, and to provide such a stable PAC.
How much sulphate is added to a polyaluminium chloride reaction?
A process according to claim 10, characterised in that the reaction mixture is supersaturated into the metastable region, and the added amount of sulphate to the reaction mixture is kept belowabout 1.0 weight percent, calculated on the total weight of the produced polyaluminium chloride solution.
What is polyaluminium chloride (PAC)?
According to EP 181 847, the finished product obtained is a saturated solution of polyaluminium chloride containing about 5.5-6 % by weight of aluminum at the most.; it is indicated in the patent specification that PAC containing more than about 6 % by weight of aluminum gives an unstable product that easily crystallises.
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