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Preparation method of activated clay

An activated clay and active technology, applied in separation methods, chemical instruments and methods, other chemical processes, etc., can solve problems such as affecting product quality, large acid and water consumption, and achieve simplified production process flow, simple production process, and improved production efficiency. effect of benefit

Inactive Publication Date: 2019-07-02
金昌红泉膨润土有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method reduces the amount of acid used and the amount of water used for washing by adding a dispersant, the additional addition of a dispersant will affect the quality of the product, and the amount of water used for acid is still relatively large

Method used

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  • Preparation method of activated clay
  • Preparation method of activated clay
  • Preparation method of activated clay

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The first activated clay acid reducer consists of the following components by weight percentage: SiO 2 Content 36.12%, Al 2 o 3 Content 19.26%, Fe 2 o 3 content 8.58%, MgO content 9.86%, CaO content 10.26%, K 2 O content 4.0%, TiO 2 Content 1.2%, Na 2 The O content is 7.65%, other impurities are 3.07%, and the pH value is 7.2.

[0045] The preparation method of the first activated clay acid reducer comprises the steps:

[0046] Step 1: raw material selection, select 90 parts of gray attapulgite, 5 parts of bentonite, 3 parts of kaolinite, 1 part of illite and 1 part of quartz as basic raw materials to make granular materials;

[0047] Step 2: mixing the raw materials, mixing and stirring the gray attapulgite, bentonite, kaolinite, illite and quartz in the step 1 to form a mixture A;

[0048] Step 3: acidification treatment, the mixture A in the step 2 is acidified at room temperature with 3 parts of 38% hydrochloric acid and 15 parts of water to form mixture B, ...

Embodiment 2

[0057] The second activated clay acid reducer consists of the following components by weight percentage: SiO 2 Content 59.62%, Al 2 o 3 Content 14.53%, Fe 2 o 3 content 2.82%, MgO content 9.17%, CaO content 5.26%, K 2 O content 0.17%, TiO 2 Content 2.39%, Na 2 The O content is 4.45%, other impurities are 1.59%, and the pH value is 8.4.

[0058] The preparation method of the second activated clay acid reducer comprises the steps:

[0059] Step 1: raw material selection, select 90 parts of gray-green attapulgite, 5 parts of bentonite, 2 parts of kaolinite, 2 parts of quartz and 1 part of dolomite as basic raw materials to make granular materials;

[0060] Step 2: mixing the raw materials, mixing and stirring the gray-green attapulgite, bentonite, kaolinite, quartz and dolomite in step 1 to form a mixture A;

[0061] Step 3: acidification treatment, the mixture A in the step 2 is acidified at room temperature with 5 parts of 36% hydrochloric acid and 15 parts of water to ...

Embodiment 3

[0070] The third activated clay acid reducer is composed of the following components by weight percentage: SiO 2 Content 47.62%, Al 2 o 3 Content 9.53%, Fe 2 o 3 content 0.82%, MgO content 9.17%, CaO content 4.26%, K 2 O content 0.19%, TiO 2 Content 2.64%, Na 2 The O content is 3.45%, other impurities are 22.32%, and the pH value is 7.6.

[0071] The preparation method of the 3rd active clay acid reducer, comprises the steps:

[0072] Step 1: raw material selection, select 90 parts of off-white attapulgite, 5 parts of bentonite, 3 parts of kaolinite, 1 part of quartz and 1 part of feldspar as basic raw materials to make granular materials;

[0073] Step 2: mixing the raw materials, mixing and stirring the off-white attapulgite, bentonite, kaolinite, quartz and feldspar in step 1 to form a mixture A;

[0074] Step 3: acidification treatment, the mixture A in the step 2 is acidified at room temperature with 10 parts of 37% hydrochloric acid and 15 parts of water to form ...

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Abstract

The invention relates to the technical field of activated clay, and particularly relates to a preparation method of activated clay. The preparation method comprises the following steps: firstly, carrying out beneficiation, activation, pressure filtration and drying on clay minerals to prepare a prefabricated material with an free acid content of 0.30-2.5%, then adding the activated clay acidity-reducing agent into the prefabricated material, carrying out grinding, and then carrying out standing for 8 hours to obtain a finished product, wherein the content of free acid in the prefabricated material is 0.30-2.5%, and 1-20 parts of the activated clay acidity-reducing agent is added into every 100 parts of the prefabricated material. The method disclosed by the invention can be used for preparing an activated clay finished product meeting the national standard or specified standards of consumers, a conventional wet process production process flow is simplified, production water consumptionand electricity consumption are greatly reduced, acid water treatment and emission load are reduced, and production cost of enterprises is reduced.

Description

technical field [0001] The invention relates to the technical field of activated clay, in particular to a preparation method of activated clay. Background technique [0002] Activated clay is an adsorption decolorizing agent made of clay (mainly bentonite) as raw material, treated with inorganic acid or salt or other impurities, rinsed with water, and dried. The appearance is powdery, odorless, tasteless, and non-toxic. , strong adsorption performance, can adsorb colored substances, organic substances, widely used in petroleum, chemical, food, national defense or medical and other fields. [0003] The production techniques of activated clay mainly include suspension method (wet method), aging method (wet method), extrusion method (semi-dry method), ultrasonic and microwave method (dry method). The production process of full dry method and semi-wet method is difficult to operate, and the stability of product quality is poor, which limits the use of activated clay, and is rar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/34B01J20/12
CPCB01J20/3433B01J20/12
Inventor 雍积全李文明王志梅王惠善程晓霞
Owner 金昌红泉膨润土有限责任公司
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