KR100385580B1 - Dispersant from Lignin - Google Patents

Dispersant from Lignin Download PDF

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Publication number
KR100385580B1
KR100385580B1 KR10-2000-0012903A KR20000012903A KR100385580B1 KR 100385580 B1 KR100385580 B1 KR 100385580B1 KR 20000012903 A KR20000012903 A KR 20000012903A KR 100385580 B1 KR100385580 B1 KR 100385580B1
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KR
South Korea
Prior art keywords
dispersant
hours
black liquor
lignin
stirring speed
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KR10-2000-0012903A
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Korean (ko)
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KR20010091350A (en
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조성웅
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조성웅
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Priority to KR10-2000-0012903A priority Critical patent/KR100385580B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F17/00Use of substances as emulsifying, wetting, dispersing or foam-producing agents

Abstract

본 발명은 펄프 제조 공정시 발생되는 흑액(Black Liquor)을 이용해서 약품 처리하여 분산 염료용 분산제, 시멘트, 레미콘 품질 향상 및 균일화를 위한 분산제 제조 및 사용을 위한 발명이다.The present invention is an invention for producing and using a dispersant for improving and homogenizing a dispersant for a disperse dye, cement, and ready-mixed concrete by chemical treatment using black liquor generated during the pulp manufacturing process.

Description

펄프 제조시 발생된 흑액을 이용한 염료, 시멘트 및 레미콘용 분산제 제조와 사용방법{Dispersant from Lignin}Preparation and use of dispersants for dyes, cement and ready-mixed concrete using black liquor generated during pulp production {Dispersant from Lignin}
본 발명은 폴리에스터, 아세테이드, 나이론을 염색하는 분산염료 제조시 사용되는 분산제와 시멘트 및 레미콘의 품질향상을 위하여 사용되는 분산제 등을 알카리법인 크라프트 펄프 제조시 발생되는 리그닌 축출액인 흑액을 이용하여 제조하는 방법이며 상세히 설명하면 다음과 같다.The present invention uses a black liquor, which is a lignin leachate produced in the production of kraft pulp, which is an alkali dispersant used in the manufacture of disperse dyes for dyeing polyester, acetate and nylon, and a dispersant used for improving the quality of cement and ready-mixed concrete. It is a method of manufacturing and described in detail as follows.
일반적으로 크라프트 펄프 제조 방법을 대별하면, 목재를 잘게 썰어 목편(Chip)을 만든 뒤 증해액으로 증해공정을 거치면 나무의 18 ∼ 32%를 차지하는 고분자 물질인 리그닌(목당)이 녹아 나오고 셀루로우스 등이 남게 된다. 이때 리그닌 함유 축출액을 흑액(Black Liquor)이라 하며 이는 이미 증해액으로 사용된 약품에 의하여 분산제로서의 기능을 갖게 되는데 일반적으로 추가 공정을 거치지 않고 태워서 열원과 증발 잔류 약품을 회수하여 증해액으로 재이용한다.In general, the kraft pulp manufacturing method is divided into chopped wood to make a chip (Chip) and then the cooking process with a cooking liquor melts lignin (wood sugar), which accounts for 18 to 32% of the wood, cellulose, etc. Will remain. In this case, lignin-containing leachate is called black liquor, which has a function as a dispersant by a drug already used as a cooking liquid. Generally, it is burned without further processing to recover a heat source and evaporated residual chemicals and reused as a cooking liquid. .
그러나, 본 발명에서는 이 흑액을 필요에 따라 과산화수소, 차아염소산소다등으로 탈색과 묽은 황산 및 연한 기타 산으로 필요한 산, 알카리 수준을 조정하고 증발 및 수분 첨가로 필요한 수준의 농도를 조정한 뒤 분산제 자체가 목당인 관계로 외부 박테리아에 의해 장기 방치시 부패되어 분산기능을 상실하기 때문에 방부제를 중량대비 0.1 ∼ 1% 첨가하여 사용한다.In the present invention, however, the black liquor is decolorized with hydrogen peroxide, sodium hypochlorite, etc., and the required acid and alkali levels are adjusted with dilute sulfuric acid and light other acids, and the necessary concentration is adjusted by evaporation and water addition. Because it is molasses, it is decayed when left for a long time by external bacteria and loses dispersing function. Therefore, 0.1 ~ 1% by weight of preservative is used.
<제 1실시예><First Embodiment>
분산 염료용, 시멘트 및 레미콘 품질 향상용 분산제 제조방법Dispersant for Dispersing Dye, Cement and Ready-mixed Concrete Quality Improvement Method
제 2도는 분산제 제조 공정이며 알카리크라프트법에 의해 발생된 흑액을 저장조(2-A)에 저장한 뒤 필요에 따라 알카리 조정조(2-B)에서 온도를 100℃ 이상 유지시키면서 이산화탄소나 묽은 황산(20% 이하)으로 교반속도 60RPM, 2∼4시간 동안 pH를 14에서 pH10.5로 조절한다. 다음 30℃∼5℃로 내려 72시간∼148시간 방치하면 염이 석출되어 밑에 가라앉고 분산제는 상등액으로 남는다. 이를 밑으로 제거하든지, 상등액을 펌프로 분리하여 농도저장조(2-C)로 보내어 이곳에서 수분 증발 및 수분 첨가하여 분산제 농도를 조정하고 방부제 투입조(2-D)로 보내어 온도를 20℃∼30℃로 유지하면서 방부제(상품명 TROYSAN174, TROY Co. 등)를 무게대비 1%내 첨가하고 교반속도 60RPM 교반시간 10분간 유지한 뒤, 필요에 따라 액체 분산제, 건조하여 고체분산제 등을 만들어 사용한다.2 is a dispersing agent manufacturing process, and the black liquor generated by the alkaline craft method is stored in a storage tank (2-A), and carbon dioxide or dilute sulfuric acid (20 % Or less) to adjust the pH from 14 to pH10.5 for a stirring speed of 60 RPM for 2 to 4 hours. When the temperature is then lowered to 30 ° C. to 5 ° C. and left for 72 hours to 148 hours, salts precipitate and sink to the bottom. The dispersant remains as a supernatant. Remove it from underneath, or separate the supernatant with a pump and send it to the concentration storage tank (2-C) where water evaporates and adds water to adjust the dispersant concentration and sends it to the preservative input tank (2-D) to bring the temperature to 20 ℃ ~ 30. Preservatives (trade names TROYSAN174, TROY Co., etc.) are added within 1% of the weight while maintaining at a temperature, and the stirring speed is 60RPM, and the stirring time is maintained for 10 minutes, and then used as a liquid dispersant and dried to make a solid dispersant.
..
도 1은 일반적인 펄프 제조 공정도.1 is a general pulp manufacturing process.
도 2는 본 발명 염료, 시멘트 및 레미콘용 분산제 제조 공정도.Figure 2 is a manufacturing process of the dispersant for the dye, cement and ready-mixed concrete of the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1-A : 목편 1-B : 증해공정 1-C : 세척공정1-A: Wood 1-B: Cooking process 1-C: Cleaning process
1-D : 정선공정 1-E : 표백공정 1-F : 건조공정1-D: Selection process 1-E: Bleaching process 1-F: Drying process
1-G : 제품(Pulp)1-G: Product
2-A : 흑액(Black Liquor) 저장조 2-B : 산, 알카리(pH) 조정조2-A: Black Liquor Storage Tank 2-B: Acid, Alkaline (pH) Conditioning Tank
2-C : 농도 조정조 2-D : 방부제 투입조2-C: concentration adjusting tank 2-D: preservative input tank
2-E : 건조공정2-E: drying process
..
..

Claims (3)

  1. 삭제delete
  2. 알카리 크라프트 제조시 발생된 흑액을 이용하여 온도를 100℃ 이상 유지하면서 이산화탄소나 20% 이하의 황산으로 적가하면서 교반속도 60RPM, 2∼4시간 동안 pH 14에서 pH 10.5로 조절하고 30℃∼5℃로 내려 72∼148시간 방치한 뒤 염과 상등액 (분산제)를 분리하고 유지온도 20℃∼30℃에서 교반속도 60RPM 교반시간 10분간 방부제(TROYSAN174, TROY Co. 등)를 무게대비 1% 이내로 투입하여 필요에 따라 액체 분산제, 고체분산제를 제조하는 방법Using the black liquor produced during the production of alkaline kraft, dropwise with carbon dioxide or sulfuric acid of 20% or less while maintaining the temperature at 100 ° C. or higher, and the stirring speed was adjusted to pH 10.5 at pH 14 for 2 to 4 hours at 30 ° C. to 5 ° C. After leaving for 72 to 148 hours, the salt and the supernatant (dispersant) are separated, and the preservative (TROYSAN174, TROY Co., etc.) is added within 1% of the weight for 10 minutes at a stirring speed of 60 RPM at a holding temperature of 20 ° C to 30 ° C. According to the method for preparing a liquid dispersant, a solid dispersant
  3. 제 2항에 있어서 pH를 조절하기 전 과산화수소, 차염소산소다 등 탈색제로 탈색하는 단계를 포함하는 분산제 제조방법The method for preparing a dispersant according to claim 2, comprising the step of decolorizing with a bleaching agent such as hydrogen peroxide and sodium hypochlorite before adjusting the pH.
KR10-2000-0012903A 2000-03-14 2000-03-14 Dispersant from Lignin KR100385580B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100963822B1 (en) 2008-06-30 2010-06-16 (주)정흥케미칼 An admixture for concrete, prepared using black liquor from pulping process, and a method for preparation of the same
KR101562193B1 (en) 2014-10-08 2015-10-23 한경대학교 산학협력단 Method for improving concentration of degradation products of black liquor
KR102279823B1 (en) * 2020-10-06 2021-07-20 김광호 Mulberry fiber pigment composition and preparation thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551151A (en) * 1984-04-16 1985-11-05 Westvaco Corporation Dyestuff composition: disperse or vat dye and lignin sulphonate
US4764597A (en) * 1987-06-15 1988-08-16 Westvaco Corporation Method for methylolation of lignin materials
CN1108978A (en) * 1994-03-22 1995-09-27 湖南大学 Lignin dispersing agent and its application
KR19980024583A (en) * 1996-09-12 1998-07-06 불톤 쉐이너 Processes for preparing high activity sulfonated lignin dye dispersants and dye mixtures containing the same high activity sulfonated lignin dye dispersants and the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551151A (en) * 1984-04-16 1985-11-05 Westvaco Corporation Dyestuff composition: disperse or vat dye and lignin sulphonate
US4764597A (en) * 1987-06-15 1988-08-16 Westvaco Corporation Method for methylolation of lignin materials
CN1108978A (en) * 1994-03-22 1995-09-27 湖南大学 Lignin dispersing agent and its application
KR19980024583A (en) * 1996-09-12 1998-07-06 불톤 쉐이너 Processes for preparing high activity sulfonated lignin dye dispersants and dye mixtures containing the same high activity sulfonated lignin dye dispersants and the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100963822B1 (en) 2008-06-30 2010-06-16 (주)정흥케미칼 An admixture for concrete, prepared using black liquor from pulping process, and a method for preparation of the same
KR101562193B1 (en) 2014-10-08 2015-10-23 한경대학교 산학협력단 Method for improving concentration of degradation products of black liquor
KR102279823B1 (en) * 2020-10-06 2021-07-20 김광호 Mulberry fiber pigment composition and preparation thereof

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