Rare-earth polymeric ferrophosphorus sulfate and preparation method thereof

A technology for polymerizing ferric sulfate and rare earth, which is applied in chemical instruments and methods, water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve the problems of slow processing speed and achieve fast purification and flocculation speed and large alum flowers Effect

Inactive Publication Date: 2015-04-29
乔占印
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a sewage treatment agent, polymerized ferric phosphate sulfate has a wide application prospect in the treatment of surface water with hi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] (1) Put 1.0 ton of mass concentration of 30% ferrous sulfate solution into the reactor and slowly add mass concentration of 0.1 ton of 98% sulfuric acid and 0.05 ton of 31% phosphoric acid and 5 kg of lanthanum oxide, and feed oxygen into the reactor. React at 50-90°C for 2-3 hours to make a dark brown rare earth polyphosphorus ferric sulfate solution.

Embodiment 2

[0011] (1) Put 1.3 tons of ferrous sulfate solution with a mass concentration of 40% into the reactor and slowly add 0.2 tons of sulfuric acid with a mass concentration of 98% and 0.08 tons of phosphoric acid with a mass concentration of 31% and 8 kg of lanthanum chloride, and introduce oxygen , react at 50-90°C for 2-3 hours to make a dark brown rare earth polyphosphorus ferric sulfate solution.

Embodiment 3

[0013] (1) Put 1.5 tons of mass concentration of 50% ferrous sulfate solution into the reaction kettle and slowly add 0.3 tons of 98% sulfuric acid and 0.1 tons of phosphoric acid and 10 kilograms of lanthanum sulfate with a mass concentration of 31%, and feed oxygen. React at 50-90°C for 2-3 hours to make a dark brown rare earth polymerized ferric sulfate solution.

[0014] The products of the above examples are used for purification and flocculation treatment of surface water with high turbidity and high suspended solids, ore washing water, and coal washing water according to the conventional treatment method, which has the remarkable advantages of large alum flowers and fast speed.

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Abstract

The invention discloses rare-earth polymeric ferrophosphorus sulfate. The rare-earth polymeric ferrophosphorus sulfate comprises polymeric ferrophosphorus sulfate which is rare-earth polymeric ferrophosphorus sulfate, and rare earth is one or a mixture of lanthanum oxide, lanthanum chloride and lanthanum sulfate. A preparation method comprises steps as follows: placing 1.0-1.5 t of a ferrous sulfate solution with the mass concentration of 30-50% into a reaction kettle, slowly adding 0.1-0.3 t of sulfuric acid with the mass concentration of 98%, 0.05-0.1 t of phosphoric acid with the mass concentration of 31% and 5-10 kg of the lanthanum oxide, the lanthanum chloride or the lanthanum sulfate, and feeding oxygen for reactions at the temperature of 50-90 DEG C for 2-3 h to prepare a dark brown lanthanum rare-earth polymeric ferrophosphorus sulfate liquid. The rare-earth polymeric ferrophosphorus sulfate has the significant advantages of high purification and flocculation speed and large alum floccule.

Description

[0001] Technical field: [0002] The invention relates to a sewage treatment agent, in particular to a rare earth polyphosphorus ferric sulfate and a preparation method thereof. Background technique: [0003] As a sewage treatment agent, polymerized ferric phosphate sulfate has a wide application prospect in the treatment of surface water with high turbidity suspended solids, ore washing, and coal washing water to purify flocs, but the slow treatment speed is restricted by its application. Invention content: [0004] The object of the present invention is to propose a kind of rare earth polyphosphorus ferric sulfate with fast purification and flocculation speed and large alum flower and its preparation method. [0005] The technical solution for realizing the object of the present invention is a rare earth polymeric ferric sulfate, including polymeric ferric sulfate, characterized in that: the polymeric ferric sulfate is rare earth polymeric ferric sulfate, and the rare ea...

Claims

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Application Information

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IPC IPC(8): C02F1/52
CPCC02F1/5236
Inventor 乔占印乔宇
Owner 乔占印
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