Method for producing precipitated barium sulfate and co-producing manganese chloride

A technology for precipitating barium sulfate and manganese chloride, which is applied in the direction of manganese halide, calcium/strontium/barium sulfate, etc., can solve the problems of low added value and economic benefits of products, high impurity content of products, complicated process flow, etc., and achieve cost Low cost, reduced product cost, rich raw material resources

Active Publication Date: 2015-08-19
河北日新化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this process: the process is complicated, the reaction time is long, and there is a lot of waste liquid
It does not involve the removal of impurities in manganese chloride products, so this process only achieves the purpose of resource recovery, but the product has high impurity content, low output, low added value and economic benefits of the product

Method used

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  • Method for producing precipitated barium sulfate and co-producing manganese chloride
  • Method for producing precipitated barium sulfate and co-producing manganese chloride
  • Method for producing precipitated barium sulfate and co-producing manganese chloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A. Prepare barium chloride solution: dissolve solid barium chloride in water, prepare barium chloride solution with a concentration of 0.6mol / L, take out 500mL, add 0.83g of P5040, stir evenly, and set aside;

[0044] B. Prepare manganese sulfate solution: dissolve solid manganese sulfate in water, prepare manganese sulfate solution with a concentration of 0.6mol / L, take out 500mL, adjust the pH to 2.5 with sulfuric acid or hydrochloric acid, and set aside;

[0045] C, metathesis reaction: the manganese sulfate solution prepared by step B is stirred and dripped into the barium chloride solution prepared by step A, and the excessive 3% of manganese sulfate solution is controlled, and the stirring speed is controlled to be 200r / min. Carry out metathesis reaction under;

[0046] D, filter the product after step C metathesis reaction, collect filtrate and filter cake respectively;

[0047] E, carry out SO with the filtrate collected in step D 4 2- Removal of impurities, ...

Embodiment 2

[0050] A. Prepare barium chloride solution: dissolve solid barium chloride in water, prepare barium chloride solution with a concentration of 0.1mol / L, take out 500mL, add 0.14g of P5040, stir evenly, and set aside;

[0051] B. Prepare manganese sulfate solution: dissolve solid manganese sulfate in water, prepare a manganese sulfate solution with a concentration of 0.1mol / L, take out 500mL, adjust the pH to 1 with hydrochloric acid, and set aside;

[0052] C, metathesis reaction: the manganese sulfate solution prepared by step B is stirred and dripped into the barium chloride solution prepared by step A, and the excessive 3% of manganese sulfate solution is controlled, and the stirring speed is controlled to be 200r / min. Carry out metathesis reaction under;

[0053] D, filter the product after step C metathesis reaction, collect filtrate and filter cake respectively;

[0054] E, carry out SO with the filtrate collected in step D 4 2- Removal of impurities, specifically: the...

Embodiment 3

[0057] A. Prepare barium chloride solution: dissolve solid barium chloride in water, prepare barium chloride solution with a concentration of 0.5mol / L, take out 500mL, add 4.16g of P5040, stir evenly, and set aside;

[0058] B. Prepare manganese sulfate solution: dissolve solid manganese sulfate in water, configure manganese sulfate solution with a concentration of 0.5mol / L, take out 500mL, adjust the pH to 1.5 with hydrochloric acid, and set aside;

[0059] C, metathesis reaction: the manganese sulfate solution prepared by step B is stirred and dripped into the barium chloride solution prepared by step A, and the excessive 3% of manganese sulfate solution is controlled, and the stirring speed is controlled to be 200r / min. Carry out metathesis reaction under;

[0060] D, filter the product after step C metathesis reaction, collect filtrate and filter cake respectively;

[0061] E, carry out SO with the filtrate collected in step D 4 2- Impurity removal is specifically: the ...

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Abstract

The invention discloses a method for producing precipitated barium sulfate and co-producing manganese chloride. The method comprises the following steps: A, preparing a barium chloride solution; B, preparing a manganese sulfate solution; C, dipping the manganese sulfate solution prepared by the step B into the barium chloride solution prepared by the step A to perform replacement reaction; D, filtering the product after performing the replacement reaction by the step C, and respectively collecting filtrate and filter cakes; E, performing SO4<2-> decontamination on the filtrate collected by the step D, filtering the decontaminated filtrate, and distilling to obtain manganese chloride; F, rinsing the filter cakes collected by the step D till no chloride ion, baking the rinsed filter cakes in an oven, grinding and sieving to obtain barium sulfate. When precipitated barium sulfate is prepared, simultaneously a byproduct, namely manganese chloride is recovered. The byproduct is high in added value, the utilization rate of the energy is effectively increased, and relatively high economical benefits can be obtained.

Description

technical field [0001] The invention belongs to the technical field of filler preparation, in particular to a method for producing precipitated barium sulfate and co-producing manganese chloride. Background technique [0002] Precipitated barium sulfate, as a high-quality filler and white pigment, is widely used in rubber, plastics, paint, ink, paper, textile, ceramics, medicine and other industries. The traditional production method of barium sulfate is Glauber's salt-black ash method, which uses barite as raw material, reduces and roasts with coal powder, and then reacts with sodium sulfate to produce barium sulfate. Because of the high sulfur content in the product and the large particle size and wide particle size distribution, its application range is limited. [0003] The preparation of precipitated barium sulfate with barium chloride as a raw material has been extensively studied by researchers, among which the process of preparing precipitated barium sulfate by-prod...

Claims

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Application Information

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IPC IPC(8): C01F11/46C01G45/06
Inventor 李占远李怀玉张卓标韩恒朝尹书成钱斌
Owner 河北日新化工有限公司
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