KR920016652A - Process for producing recycled pulp - Google Patents

Process for producing recycled pulp Download PDF

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Publication number
KR920016652A
KR920016652A KR1019910002519A KR910002519A KR920016652A KR 920016652 A KR920016652 A KR 920016652A KR 1019910002519 A KR1019910002519 A KR 1019910002519A KR 910002519 A KR910002519 A KR 910002519A KR 920016652 A KR920016652 A KR 920016652A
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KR
South Korea
Prior art keywords
pulp
weight
recycled pulp
wasteland
producing
Prior art date
Application number
KR1019910002519A
Other languages
Korean (ko)
Inventor
황병우
Original Assignee
김인호
전주제지 주식회사
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.)
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Publication date
Application filed by 김인호, 전주제지 주식회사 filed Critical 김인호
Priority to KR1019910002519A priority Critical patent/KR920016652A/en
Publication of KR920016652A publication Critical patent/KR920016652A/en

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Abstract

내용 없음No content

Description

재생펄프의 제조 방법Process for producing recycled pulp

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

도면은, 본 발명의 재생펄프의 제조 공정을 설명하기 위한 개략 공정흐름도 이다.The figure is a schematic process flowchart for demonstrating the manufacturing process of the recycled pulp of this invention.

Claims (3)

고지를 해리하고 크리닝, 스크리닝 한 후 탈묵하고 재차 스크린, 크리닝 처리한 후 농축하여 재생펄프를 제조하는 방법에 있어서, 고지로서 코팅 잡지 고지를 사용하고, 이 고지를 고농도 펄퍼를 사용하여 해리와 표백을 동시에 실시한 후, 이 펄프가 탈묵 공정에 유입되기 전에액의 pH를 8.0~8.5로 조절되고, 칼슘 경도를 200~250ppm으로 유지되게 한 후 부상조로 유입되는 펌프 입구측에서 완전 용해된 지방산 비누를 투입하는 것을 특징으로 하는 재생펄프의 제조 방법.In the method of dissociating wasteland, cleaning, screening, deinking, screening, cleaning, and concentrating to produce recycled pulp, coated magazine wasteland is used as wasteland, and dissociation and bleaching is carried out using high concentration pulp. At the same time, before the pulp is introduced into the deinking process, the pH of the liquid is adjusted to 8.0 to 8.5, the calcium hardness is maintained at 200 to 250 ppm, and the fully dissolved fatty acid soap is introduced at the pump inlet side into the flotation tank. Method for producing a recycled pulp, characterized in that. 제1항에 있어서, 상기한 고지의 해리 및 표백 공정이, 농도10~20중량%, 온도 50~60℃, pH 9~11인 조건하에서 가성 소오다 0.4~0.6중량%, 규산 소오다 2~4중량% 및 과산화 수소 0.5~1중량%를 펄프액에 투여하고 20~40분간 처리함으로써 행해지는 것을 특징으로 하는 재생펄프의 제조 방법.The dissociation and bleaching process of the used paper as described above is a caustic soda 0.4 to 0.6% by weight, sodium silicate 2 ~ under the conditions of 10 to 20% by weight, a temperature of 50 to 60 ℃, pH 9-11 A process for producing recycled pulp, which is carried out by administering 4% by weight and 0.5% to 1% by weight of hydrogen peroxide to the pulp solution and treating for 20 to 40 minutes. 제1항에 있어서, 상기한 탈묵 보상조의 조건은, 공기 유입량 50~60%/지료량, 온도 40~50℃체류시간 5~10분 인 것을 특징으로 하는 재생펄프의 제조 방법.The process for producing recycled pulp according to claim 1, wherein the conditions for the deoiling compensating tank are air inflow rate of 50 to 60% / paper amount and temperature of 40 to 50 ° C. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910002519A 1991-02-13 1991-02-13 Process for producing recycled pulp KR920016652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910002519A KR920016652A (en) 1991-02-13 1991-02-13 Process for producing recycled pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910002519A KR920016652A (en) 1991-02-13 1991-02-13 Process for producing recycled pulp

Publications (1)

Publication Number Publication Date
KR920016652A true KR920016652A (en) 1992-09-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910002519A KR920016652A (en) 1991-02-13 1991-02-13 Process for producing recycled pulp

Country Status (1)

Country Link
KR (1) KR920016652A (en)

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