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Poly silicon phosphorus aluminum ferrous chloride and preparation method thereof

A technology of polysilicon phosphoaluminum chloride and phosphate rock powder, which is applied in the treatment of water, sewage or sludge, and wastewater fields, can solve problems such as failure to detect technical solutions, and achieve the best effect of stable performance

Active Publication Date: 2015-04-22
浙江嘉灵环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After being searched by the national first-level search unit, the same technical solution could not be detected

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1, take 95kg of industrially synthesized hydrochloric acid converted into a mass concentration of 100%, add it to the reaction tank, add 50kg of phosphate rock powder under constant stirring, then add 80kg of gibbsite, steam heating to control the temperature of the reaction tank at 100-110°C In between, after 2 hours of reaction, pressure filtration is carried out. After pressure filtration, the semi-finished product is added to the reaction tank again, cooled to 50-70°C, and 140kg of calcium aluminate powder is added under constant stirring, and 635kg of water is gradually added. Timely control the flow rate so that the temperature of the solution is controlled in the range of 80-100°C. At this time, the amount of water converted from the amount of steam should be deducted from the total amount of water. React for 1 hour to separate the liquid and slag. In this example, natural sedimentation is used to obtain 920 kg of finished filtrate.

Embodiment 2

[0038] Example 2, take 145kg of industrially synthesized hydrochloric acid converted into a mass concentration of 100%, add it to the reaction tank, add 100kg of phosphate rock powder under constant stirring, then add 120kg of gibbsite, steam heating to control the temperature of the reaction tank at 100-110°C In between, press filter after 2 hours of reaction, add the semi-finished product to the reaction tank after the press filter, cool to 50-70°C, add 110kg of calcium aluminate powder under constant stirring, and gradually add 525kg of water, add water Timely control the flow rate so that the temperature of the solution is controlled in the range of 80-100°C. At this time, the amount of water converted from the amount of steam should be deducted from the total amount of water. React for 3 hours to separate the liquid and slag. In this example, pressure filtration is used to obtain 890kg of finished filtrate.

Embodiment 3

[0039] Example 3, take 100kg of industrially synthesized hydrochloric acid converted into a mass concentration of 100%, add it to the reaction tank, add 60 kg of phosphate rock powder under constant stirring, then add 85 kg of gibbsite, and steam heating to control the temperature of the reaction tank at 100-110 ° C In between, after 2 hours of reaction, pressure filtration is carried out. After pressure filtration, the semi-finished product is added to the reaction tank again, cooled to 50-70°C, and 135kg of calcium aluminate powder is added under constant stirring, and 620kg of water is gradually added. Timely control the flow rate, so that the solution temperature is controlled in the range of 80-100 ° C. At this time, the amount of water converted from the amount of steam should be deducted from the total amount of water. React for 2 hours to separate the liquid and slag. In this example, centrifugation is used to obtain 910 kg of finished filtrate.

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Abstract

The invention relates to a water treatment coagulant-poly silicon phosphorus aluminum ferrous chloride mainly applied to surface water treatment of drinking water. A liquid finished product is prepared through reaction by taking industrial synthetic hydrochloric acid, powdered rock phosphate, gibbsite, calcium aluminate powder and water as main raw materials and reasonably controlling reaction conditions and raw material proportion after liquid-residue separation. The poly silicon phosphorus aluminum ferrous chloride is cheap and easily available in raw materials, simple in process, good in stability and easy to store, and the coagulation performance of the product is improved by 40-50% than that of common poly aluminum chloride through reasonable ferrous aluminum ratio.

Description

technical field [0001] The invention belongs to the treatment of water, waste water, sewage or sludge. In particular, it relates to a treatment agent for drinking water and a manufacturing method thereof. Background technique [0002] As the largest producer of polyaluminum chloride in the world, my country is a widely used drinking water treatment agent. However, with economic development, water pollution is also becoming more and more serious, and traditional polyaluminum chloride cannot meet the requirements of various water treatment. Water treatment coagulants are also developed from traditional polyaluminum chloride to composite inorganic polymer coagulants, such as polynuclear aluminum-polysilicon aluminum phosphate chloride, polyphosphorus aluminum chloride, polysilicon aluminum sulfate, polyaluminum chloride iron etc. The applicant found that by grafting silicon, phosphorus, iron ions, etc. onto polyaluminum chloride at the same time, a new product with a star an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
CPCC02F1/5236C02F1/5263
Inventor 沈烈翔徐鑫英沈敬贤沈萍
Owner 浙江嘉灵环保科技有限公司