RO97779B1 - Process for the purification of phosphoplaster - Google Patents

Process for the purification of phosphoplaster

Info

Publication number
RO97779B1
RO97779B1 RO127288A RO12728887A RO97779B1 RO 97779 B1 RO97779 B1 RO 97779B1 RO 127288 A RO127288 A RO 127288A RO 12728887 A RO12728887 A RO 12728887A RO 97779 B1 RO97779 B1 RO 97779B1
Authority
RO
Romania
Prior art keywords
phosphogypsum
phosphoplaster
purification
neutralizing
crushing
Prior art date
Application number
RO127288A
Other languages
Romanian (ro)
Inventor
Alexandru Romanescu
Cristina Dumitrescu
Original Assignee
INSTITUTUL DE CERCETARE SI PROIECTARE îN INDUSTRIA LIANTILOR SI AZBOCIMENTULUI
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 INSTITUTUL DE CERCETARE SI PROIECTARE îN INDUSTRIA LIANTILOR SI AZBOCIMENTULUI filed Critical INSTITUTUL DE CERCETARE SI PROIECTARE îN INDUSTRIA LIANTILOR SI AZBOCIMENTULUI
Priority to RO127288A priority Critical patent/RO97779B1/en
Publication of RO97779B1 publication Critical patent/RO97779B1/en

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  • Processing Of Solid Wastes (AREA)

Abstract

Prezenta inventie se refera la un procedeu de purificare a fosfoghipsului, utilizat ca adaos la macinarea cimentului pentru reglarea timpului de priza a acestuia, prin spalarea, neutralizarea, filtrarea, eventual, tratarea termica si granularea în final a fosfoghipsului. Fosfoghipsul care se purifica rezulta ca deseu din industria chimica.The present invention relates to a phosphogypsum purification process used as an addition to crushing the cement to adjust its sink time by washing, neutralizing, possibly filtering the heat treatment and finally granulating phosphogypsum. The phosphorus which is purified results as waste from the chemical industry.

RO127288A 1987-03-06 1987-03-06 Process for the purification of phosphoplaster RO97779B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO127288A RO97779B1 (en) 1987-03-06 1987-03-06 Process for the purification of phosphoplaster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO127288A RO97779B1 (en) 1987-03-06 1987-03-06 Process for the purification of phosphoplaster

Publications (1)

Publication Number Publication Date
RO97779B1 true RO97779B1 (en) 1989-07-03

Family

ID=40905914

Family Applications (1)

Application Number Title Priority Date Filing Date
RO127288A RO97779B1 (en) 1987-03-06 1987-03-06 Process for the purification of phosphoplaster

Country Status (1)

Country Link
RO (1) RO97779B1 (en)

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