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Method for preparing polymerized aluminum-iron diacid water purifying agent and production thereof

A technology for polymerizing aluminum ferric diacid and iron water purifier, which is applied in the fields of alumina/aluminum hydroxide, flocculation/sedimentation water/sewage treatment, etc. It can solve the problem of low effective content and salinity, which cannot meet the requirements of purification treatment. And other issues

Inactive Publication Date: 2008-02-20
张国平
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Problems solved by technology

However, due to its relatively low effective content of alumina, iron oxide, etc. and basicity, its water purification effect still cannot meet the requirements of modern domestic and industrial water purification treatment.

Method used

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  • Method for preparing polymerized aluminum-iron diacid water purifying agent and production thereof

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Experimental program
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Embodiment Construction

[0042] One of the specific implementation methods.

[0043] A kind of preparation method of polymeric bis-aluminum iron water purifying agent, is the water purifying agent prepared with ferrous sulfate, hydrochloric acid, sulfuric acid, sodium metasilicate, calcium aluminate and bauxite as raw materials, and its preparation steps are :

[0044] a. Add ferrous sulfate, sodium metasilicate and sulfuric acid into a clean reaction kettle for synthesis reaction to prepare material A spare liquid.

[0045] b. While preparing the stock solution of material A, add calcium aluminate, bauxite and hydrochloric acid into another clean reactor for synthesis reaction to prepare the stock solution of material B.

[0046] c. Add the standby solution of material A and the standby solution of material B into the third clean reaction kettle, and synthesize and react to obtain a finished polymeric aluminum-iron bis-acid scavenger that coexists in liquid and solid states.

[0047] The second spe...

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Abstract

The invention discloses a preparation method of a polymeric dual-acid aluminum iron water purifying agent and a product thereof. The preparation method is that: ferrous sulfate, hydrochloride, sulfate, sodium metasilicate, calcium aluminate and bauxite are taken as raw materials. The preparation procedures are that: reserved A liquid is made out of the ferrous sulfate, sodium metasilicate and sulfate which are added into a reactor for synthetic reaction; reserved B liquid is made out of the calcium aluminate, bauxite and sulfate which are added into a reactor for synthesis and reaction; the reserved A liquid and the reserved B liquid are added into the reactor for synthesis and reaction, therefore, the finished polymeric dual-acid aluminum iron water purifying agent is acquired. The product is characterized in that the weight portion of alumina is more than or equal to 10 percent, the weight portion of iron oxide is within 1.0-8 percent and the basicity is 55.0-85.0 percent. The preparation method is characterized by simple technique, low energy consumption and non-three wastes during the whole process. The product has the advantages of high contents of the effective components, high basicity and polymerization, non-toxic, non-corrosive, low dosing mass percentage during water processing and good water purifying effect, etc.

Description

technical field [0001] The invention relates to a preparation method and a product thereof of a polymerized aluminum-iron bis-acid water purifying agent, belonging to the technology of polymer inorganic water treatment agents. Background technique [0002] Existing inorganic water purifiers have experienced a development process from simple low molecular weight to polymeric high molecular weight, and from single-component type to composite type for more than 100 years, and their water purification performance has been gradually enhanced. In recent years, composite polymer inorganic polymeric water purifiers, such as aluminum-iron composites, aluminum-magnesium composites, and polyphosphorus aluminum chloride, have become research and development hotspots. [0003] Existing aluminum-iron copolymerized water purifiers, such as Chinese patent announcement numbers CN1160253C and CN1179890C, etc. Although it combines the advantages of polyaluminum (PAC) and polyferric (PFC), its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C01F7/02
Inventor 张国平
Owner 张国平
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