Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for producing iron oxide red by using concussive sludge

A technology of iron oxide red and sludge, applied in the direction of iron oxide, chemical instruments and methods, iron oxide/iron hydroxide, etc., can solve environmental pollution and other problems, and achieve the effect of simple steps

Active Publication Date: 2014-11-19
郑培学
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, a large amount of vibration waste will be generated, which will easily pollute the environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for producing red iron oxide using vibrating sludge, comprising the following steps:

[0026] a. Heating the vibrating sludge to remove the moisture in the vibrating sludge; the heating temperature is 120 degrees, and the heating time is 2 hours;

[0027] b. Put the vibrating sludge treated in step a into a non-closed container for electric heating, the heating temperature is 150 degrees, and the heating time is 2 hours, and the oxalic acid and sodium oxalate in the vibrating sludge are removed;

[0028] c. Put the vibrating sludge treated in step b into a non-closed container for heating, the heating temperature is 600 degrees, and the heating time is 2 hours, and then naturally cooled to obtain a red iron oxide product.

[0029] Among them, the main components of the shock sludge are: sodium oxalate, ferric hydroxide, oxalic acid.

[0030] Wherein, the shaking sludge is obtained through the following steps:

[0031] (1) Add the 200kg rough parts to be polis...

Embodiment 2

[0037] A method for producing red iron oxide using vibrating sludge, comprising the following steps:

[0038] a. Heating the vibrating sludge to remove the moisture in the vibrating sludge; the heating temperature is 100 degrees, and the heating time is 2 hours;

[0039] b. Put the vibrating sludge treated in step a into a non-closed container for electric heating, the heating temperature is 160 degrees, and the heating time is 1.5 hours, and the oxalic acid and sodium oxalate in the vibrating sludge are removed;

[0040] c. Put the vibrating sludge treated in step b into a non-closed container for heating, the heating temperature is 800 degrees, and the heating time is 2 hours, and then naturally cooled to obtain a red iron oxide product.

[0041] Among them, the main components of the shock sludge are: sodium oxalate, ferric hydroxide, oxalic acid.

[0042] Wherein, the shaking sludge is obtained through the following steps:

[0043] (1) Add the 200kg rough parts to be pol...

Embodiment 3

[0049] A method for producing red iron oxide using vibrating sludge, comprising the following steps:

[0050] a. Heating the vibrating sludge to remove the moisture in the vibrating sludge; the heating temperature is 100 degrees, and the heating time is 2.5 hours;

[0051] b. Put the vibrating sludge treated in step a into a non-closed container for electric heating, the heating temperature is 200 degrees, and the heating time is 2 hours, and the oxalic acid and sodium oxalate in the vibrating sludge are removed;

[0052] c. Put the vibrating sludge treated in step b into a non-closed container for heating, the heating temperature is 700 degrees, and the heating time is 3 hours, and then naturally cooled to obtain a red iron oxide product.

[0053] Among them, the main components of the shock sludge are: sodium oxalate, ferric hydroxide, oxalic acid.

[0054] Wherein, the shaking sludge is obtained through the following steps:

[0055] (1) Add the 200kg rough parts to be pol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for producing iron oxide red by using concussive sludge. The method comprises the following steps of: preparing a blank piece into concussive sludge through a concussion process, heating the concussive sludge to remove moisture out of the concussive sludge; electrically heating the treated concussive sludge into an un-sealed container to remove organic substances out of the concussive sludge; and heating the treated concussive sludge in the un-sealed container, and then naturally cooling to obtain an iron oxide red product with purity of over 90%. Compared with many methods for producing the iron oxide red, having the problems of complicated operation and high raw material cost, the method provided by the invention has the beneficial effect that waste substances including raw edges, burrs and the like in blank piece processing are effectively utilized, the steps of the method are simple, and the iron oxide red can be obtained through effective treatment.

Description

technical field [0001] The invention relates to a method for producing red iron oxide, in particular to a method for producing red iron oxide by using shock sludge. Background technique [0002] Iron oxide red, also known as ferrite red, iron dan, rust red, is an important chemical raw material, which is widely used in coatings, building materials, electronics, ceramics, textiles, paper, ink and other industries, and is in great demand. . At present, there are two types of methods for producing red iron oxide: dry method and wet method, such as green vitriol calcination method, iron yellow, iron black calcination method, sulfate, nitrate wet method and mixed acid method are being used in production. The raw materials are iron phosphorus, steel rolling pickling waste liquid, and ferrous sulfate formed from titanium dioxide production. This kind of method has long process and high cost, and requires a large amount of acid or alkali solution for dissolution, precipitation, cl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/06C02F11/00
Inventor 郑培学
Owner 郑培学