Method for preparing precipitated barium sulphate from petrochemical barium residues and reclaiming polyisobutylene

A technology for precipitating barium sulfate and polyisobutylene, applied in calcium/strontium/barium sulfate, plastic recycling, recycling technology, etc., can solve the problems of resource waste and environmental pollution

Inactive Publication Date: 2010-05-12
王嘉兴
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a method for preparing precipitated barium sulfate and recovering polyisobutylene by using petrochemical ...

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  • Method for preparing precipitated barium sulphate from petrochemical barium residues and reclaiming polyisobutylene
  • Method for preparing precipitated barium sulphate from petrochemical barium residues and reclaiming polyisobutylene

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Embodiment 1

[0013] Embodiment one: at first 300kg of petrochemical barium slag containing about 30% polyisobutylene was added with industrial water according to 1:0.5 in a closed leaching tank (1) and stirred with normal temperature water for five to ten minutes, then centrifugally filtered (2) The barium slag filter cake and leached organic water are obtained by separation. Obtained the barium slag (barium hydroxide meter) filter cake of 210kg and industrial hydrochloric acid with the mass ratio 1: 0.17 of pure substance and react in purifier (7) under agitation, reaction obtains relatively pure barium chloride 101.72kg solution . And the polyisobutylene organic aqueous solution of leaching needs further processing.

[0014] The barium chloride 101.71kg solution obtained above is treated with a small amount of barium sulfate to remove the chloride inside, and then reduced to barium chloride again, and the barium chloride solution at this time has become very pure. Continue to react wit...

Embodiment 2

[0016] Embodiment Two: First, 300kg of petrochemical barium slag containing about 30% polyisobutylene is stirred with normal temperature industrial water according to 1:1.5 in a closed leaching tank (1) for five to ten minutes, and then separated by centrifugal suction filtration (2) Obtain barium residue filter cake and leached aqueous solution. Obtained the barium slag (barium hydroxide meter) filter cake of 210kg reacts in purifier (7) with the mass ratio 1: 0.37 of pure substance again with industrial hydrochloric acid, reacts to obtain relatively pure barium chloride (221.39 kg) solution. And the polyisobutylene organic aqueous solution of leaching needs further processing.

[0017] The barium chloride 221.39kg solution obtained above is treated with a small amount of barium sulfate to remove the chloride inside, and then reduced to barium chloride again, and the barium chloride solution at this time has become very pure. Continue to react in the reactor (8) with the ma...

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Abstract

The invention discloses a method for preparing precipitated barium sulphate from petrochemical barium residues and reclaiming polyisobutylene. The main technical scheme is that the method comprises the following steps: performing physical purification and chemical purification on the petrochemical barium residues to obtain a pure barium chloride solution; performing chemical reaction between the barium chloride and sulfuric acid in certain proportion to obtain a mixed solution of the precipitated barium sulphate and hydrochloric acid; and filtering the mixed solution to obtain a hydrochloric acid solution for reuse, and washing, dehydrating, drying and crushing a filter cake to obtain the precipitated barium sulphate. In order to thoroughly solve the problem, the invention develops a set of methods specially used for treating petrochemical waste residues. The method not only can take out valuable substances from the waste residues, but also generates no secondary pollution. The method aims to change wastes into valuable and benefit the mankind.

Description

Technical field: [0001] The invention belongs to the technical field of petrochemical waste slag treatment and comprehensive utilization, in particular to a method for preparing precipitated barium sulfate and recovering polyisobutene by using petrochemical barium slag. technical background: [0002] At present, the treatment and utilization of petrochemical barium slag are only means of blast furnace incineration and underground burial, and have not been completely solved and utilized fundamentally. This treatment and solution not only brings secondary pollution, but also wastes valuable substances in the waste residue. In order to completely solve this problem, the present invention develops a set of methods for specially treating petrochemical waste residues. Not only can the valuable things in the waste residue be taken out, but also no secondary pollution will be generated. Its purpose is to turn waste into wealth and benefit mankind! ! ! Invention content: [00...

Claims

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Application Information

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IPC IPC(8): C01F11/46C08J11/08C08L23/22B09B3/00
CPCY02W30/62
Inventor 王嘉兴
Owner 王嘉兴
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