ES437358A3 - Procedure for purifying the wastewater formed in the obtaining of styrene pearl polymers. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for purifying the wastewater formed in the obtaining of styrene pearl polymers. (Machine-translation by Google Translate, not legally binding)

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Publication number
ES437358A3
ES437358A3 ES437358A ES437358A ES437358A3 ES 437358 A3 ES437358 A3 ES 437358A3 ES 437358 A ES437358 A ES 437358A ES 437358 A ES437358 A ES 437358A ES 437358 A3 ES437358 A3 ES 437358A3
Authority
ES
Spain
Prior art keywords
purifying
translation
machine
legally binding
google translate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES437358A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Priority to ES437358A priority Critical patent/ES437358A3/en
Publication of ES437358A3 publication Critical patent/ES437358A3/en
Expired legal-status Critical Current

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Abstract

Process for purifying the wastewater formed in the preparation of polystyrenes in styrene beads, in the presence of polymers of vinylpyrrolidone as a suspension stabilizer, characterized in that, at 100 parts of the wastewater, 0.05 to 5.0 are added. Parts, more especially from 0.1 to 3.0 parts, of macromolecular compounds soluble or dispersible in water containing at least 10% by weight of acrylic acid in polymerized state or its alkali or ammonium salts and the ph is regulated to a value less than 3 by the addition of mineral acids. (Machine-translation by Google Translate, not legally binding)
ES437358A 1975-04-30 1975-04-30 Procedure for purifying the wastewater formed in the obtaining of styrene pearl polymers. (Machine-translation by Google Translate, not legally binding) Expired ES437358A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES437358A ES437358A3 (en) 1975-04-30 1975-04-30 Procedure for purifying the wastewater formed in the obtaining of styrene pearl polymers. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES437358A ES437358A3 (en) 1975-04-30 1975-04-30 Procedure for purifying the wastewater formed in the obtaining of styrene pearl polymers. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES437358A3 true ES437358A3 (en) 1977-02-16

Family

ID=8469233

Family Applications (1)

Application Number Title Priority Date Filing Date
ES437358A Expired ES437358A3 (en) 1975-04-30 1975-04-30 Procedure for purifying the wastewater formed in the obtaining of styrene pearl polymers. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES437358A3 (en)

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