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Method for preparing liquid aluminium sulphate

A production method and technology of aluminum sulfate, applied in aluminum sulfate, aluminum sulfur compounds and other directions, can solve the problems of high production cost of aluminum sulfate, strict temperature and pressure requirements, etc., and achieve the effects of low production cost and abundant raw material sources.

Inactive Publication Date: 2006-10-11
朱炳金
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] What the present invention aims to solve is the problem that the existing aluminum sulfate has high production cost and strict requirements on temperature and pressure

Method used

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Embodiment Construction

[0007] The production steps of the present invention are as follows: firstly, waste sulfuric acid is put into an acid-resistant tank, and then aluminum ash is gradually added to make it react, and the temperature during the reaction is controlled between 50C and 90C. After the reaction is completed, observe the color of the reaction liquid. If it is colored, put in the decolorizing agent activated carbon for decolorization, and filter the decolorized reaction liquid with a multilayer filter cloth; if it is colorless, use a multilayer filter directly The cloth can be filtered; the resulting filtrate is liquid aluminum sulfate.

[0008] Before the waste sulfuric acid used in the present invention is added to the aluminum ash reaction, the waste sulfuric acid water should be adjusted to an appropriate concentration according to the sulfuric acid content in the waste sulfuric acid, and then the corresponding aluminum ash should be reasonably proportioned according to the adjusted wast...

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PUM

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Abstract

The invention discloses a method for preparing liquid aluminum sulfate, comprising following steps: putting waste sulfuric acid into reactor; regulating its concentration with water; adding aluminum ash gradually for reaction, the temperature for reaction is controlled between 50 Deg.C to 90 Deg. C; adding decolourant to remove color if necessary; filtering and getting liquid aluminum sulfate. The production cost is low.

Description

Technical field [0001] The invention relates to a method for producing chemical products, in particular to a method for producing liquid aluminum sulfate. Background technique [0002] The use of existing chemical raw materials to produce aluminum sulfate has the problems of high production costs and strict requirements on temperature and pressure conditions. Summary of the invention [0003] The purpose of the present invention is to develop a production method of liquid aluminum sulfate, in which industrial leftover aluminum ash and waste sulfuric acid are used as raw materials for the production of alum. [0004] The present invention solves the problems of high production cost of the existing aluminum sulfate and strict requirements on temperature and pressure. [0005] The production steps of the present invention are: put the waste sulfuric acid into the reactor, then adjust the concentration of the waste sulfuric acid wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/74
Inventor 朱炳金
Owner 朱炳金
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