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Acid activated bentonite and application thereof

A technology of bentonite and acid activation, which is applied in the field of deep processing of bentonite, and can solve the problems of modified bentonite alkali content, low activity index, short thermal stability time, etc.

Inactive Publication Date: 2017-12-15
广西汇智生产力促进中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved in the present invention is to provide an acid-activated bentonite and its application to solve the problems of low alkali content, low activity index and short thermal stability time of modified bentonite in the prior art

Method used

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  • Acid activated bentonite and application thereof
  • Acid activated bentonite and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A preparation method of modified bentonite heat-resistant agent, comprising the following steps:

[0036] S1: Mix bentonite and activated clay wastewater with a concentration of 2.4% at a weight ratio of 1:2.51, and stir evenly at a rotating speed of 300r / min to obtain slurry material A;

[0037] S2: The slurry material A prepared in step S1 is added to a mixed acid with a concentration of 7.2%, and the mixed acid is oxalic acid with a concentration of 14.3wt%, tartaric acid with a concentration of 30-36.2wt%, and citrate with a concentration of 21.7wt%. A mixed acid composed of rafter acid in a volume ratio of 1.8:2.5:1.2, the weight ratio of the slurry material A to the mixed acid is 1:3.6, adding ferrous ammonium sulfate, molecular sieve catalyst and diethylene triethylene oxide under the condition of 300r / min at a rotating speed Sodium amine pentacarboxylate is stirred, and the weight ratio of described ferrous ammonium sulfate, molecular sieve catalyst, sodium diet...

Embodiment 2

[0048] A preparation method of modified bentonite heat-resistant agent, comprising the following steps:

[0049] S1: Mix bentonite and activated clay wastewater with a concentration of 12.2% in a weight ratio of 1.8:9.3, and stir evenly at a rotating speed of 400r / min to obtain slurry material A;

[0050] S2: the slurry material A that step S1 makes is joined in the mixed acid that concentration is 15%, and described mixed acid is the oxalic acid of concentration 17.2wt%, the tartaric acid of concentration 34.5wt%, the citrate of concentration 22wt%. A mixed acid composed of a volume ratio of 4.1:3.6:1.8, the weight ratio of the slurry material A to the mixed acid is 1.9:10, adding ferrous ammonium sulfate, molecular sieve catalyst and diethylene triamine pentacarboxylate under the condition of 400r / min Sodium acid is stirred, and the weight ratio of described ferrous ammonium sulfate, molecular sieve catalyst, sodium diethylenetriamine pentacarboxylate and slurry material A i...

Embodiment 3

[0061] A preparation method of modified bentonite heat-resistant agent, comprising the following steps:

[0062] S1: Mix bentonite and activated clay wastewater with a concentration of 20.2% in a weight ratio of 2.6:16, and stir evenly at a rotating speed of 500r / min to obtain a slurry material A;

[0063] S2: the slurry material A that step S1 makes is joined in the mixed acid that concentration is 22.4%, and described mixed acid is the oxalic acid of concentration 19.6wt%, the tartaric acid of concentration 36.2wt%, the citrate of concentration 22.3wt% A mixed acid composed of a volume ratio of 6.3:5.2:2.6, the weight ratio of the slurry material A to the mixed acid is 2.8:17, and the ferrous ammonium sulfate, molecular sieve catalyst and diethylenetriaminepenta Sodium carboxylate is stirred, and the weight ratio of described ferrous ammonium sulfate, molecular sieve catalyst, sodium diethylenetriamine pentacarboxylate and slurry material A is 1.5-4.2:1-2.4:0.7-1.5:49-158.5,...

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Abstract

The invention discloses acid activated bentonite and an application thereof and belongs to the technical field of deep processing of bentonite. The acid activated bentonite is prepared through steps of blending, slurry mixing, acid activating reaction, press filtering and the like. A modified bentonite heat-resisting agent prepared from the acid activated bentonite is non-toxic, odorless, safe, environmentally friendly and excellent in performance, the alkali content reaches 47wt%-55wt%, the activity index is 98%-99%, and the heat-stable time is 172-181 min.

Description

【Technical field】 [0001] The invention belongs to the technical field of bentonite deep processing, and in particular relates to an acid-activated bentonite and its application. 【Background technique】 [0002] Bentonite is called natural nano material and universal clay. The quality of bentonite in my country is excellent, and its ore reserves rank second in the world. Except for a small amount of exports as raw materials for organic bentonite, the rest are sold domestically in the form of bentonite powder and activated clay. These products are primary products with low economic benefits and low resource utilization levels. . In order to obtain greater economic benefits, it is necessary to develop serialized new products with high-tech content and expand new areas of application. [0003] PVC (polyvinyl chloride) is a thermoplastic polymer produced by the polymerization of vinyl chloride. Because its products have the advantages of easy control of hardness, good mechanical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/06C08K9/00C08K9/02C08K9/04C08K9/08C08K3/34C08K3/30C08K5/17C08L27/06
CPCC08K13/06C08K3/30C08K3/346C08K5/17C08K9/00C08K9/02C08K9/04C08K9/08C08K2003/3045C08L2201/08C08L27/06
Inventor 梁胜仁
Owner 广西汇智生产力促进中心有限公司
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