최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0400617 (1973-09-25) |
우선권정보 | FR-0034872 (1972-10-02) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 11 인용 특허 : 0 |
The purification of the raw phosphogypsum issued from the fabrication of phosphoric acid by reaction between phosphate rock and sulphuric acid consists of removing the extreme grain size fractions therefrom. This method has been developed after it has been found that a large part of the undesirable
A method for the treatment of phosphogypsum, which consists essentially of subjecting a pulp, obtained from mixing phosphogypsum and water, to a wet screening step by passing the pulp through a sieve to remove the coarse grain fractions, subjecting the pulp passing through the sieve to a flotation p
※ AI-Helper는 부적절한 답변을 할 수 있습니다.