JPS63190711A - Method for purifying raw material for filler - Google Patents

Method for purifying raw material for filler

Info

Publication number
JPS63190711A
JPS63190711A JP2116587A JP2116587A JPS63190711A JP S63190711 A JPS63190711 A JP S63190711A JP 2116587 A JP2116587 A JP 2116587A JP 2116587 A JP2116587 A JP 2116587A JP S63190711 A JPS63190711 A JP S63190711A
Authority
JP
Japan
Prior art keywords
acid
shell
shells
filler
raw material
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.)
Granted
Application number
JP2116587A
Other languages
Japanese (ja)
Other versions
JP2668357B2 (en
Inventor
Shigeki Kio
茂樹 木尾
Nobumasa Tanaka
信正 田中
Kazuo Sasaoka
笹岡 一男
Masahiro Nishida
正宏 西田
Kyoichi Nagatsuka
永塚 恭一
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.)
NICHIDEN KAGAKU KK
Nippon Starch Chemical Co Ltd
Original Assignee
NICHIDEN KAGAKU KK
Nippon Starch Chemical Co Ltd
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 NICHIDEN KAGAKU KK, Nippon Starch Chemical Co Ltd filed Critical NICHIDEN KAGAKU KK
Priority to JP62021165A priority Critical patent/JP2668357B2/en
Publication of JPS63190711A publication Critical patent/JPS63190711A/en
Application granted granted Critical
Publication of JP2668357B2 publication Critical patent/JP2668357B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63Inorganic compounds
    • D21H17/67Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675Oxides, hydroxides or carbonates
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00Coated paper; Coating material
    • D21H19/36Coatings with pigments
    • D21H19/44Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/64Inorganic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Paper (AREA)

Abstract

PURPOSE:To purify a raw material for filler for paper industry with low cost by dipping a shell into an acid having oxidizing power and removing an organic substance stuck to the shell. CONSTITUTION:The shell of scallop, oyster or pearl oyster, etc., is dipped into the acid having oxidizing power such as conc. sulfuric acid or conc. phosphoric acid and then an organic impurity stuck to the shell such as algae is removed by agitating at about 20-90 deg.C for a necessary time. Then the shell is drawn up from the acid, washed with water, dried and crushed, and the organic substance stuck to the outer surface of the shell is damaged by pre-treating with an alkali such as sodium hydroxide before treating with the acid.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、製紙工業におけるフィラー(充填剤)原料の
精製方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for purifying filler raw materials in the paper manufacturing industry.

(従来の技術) フィラーとして一般には、クレーや炭酸カルシウム、カ
オリン等が用いられている。これらは、はとんどが国外
より輸入されている。ところが、ホタテ貝やカキ、真珠
貝等の養殖により、多量に出る廃棄物となっている。
(Prior Art) Clay, calcium carbonate, kaolin, etc. are generally used as fillers. Most of these are imported from overseas. However, the cultivation of scallops, oysters, pearl oysters, etc. produces a large amount of waste.

貝殻を利用してフィラーを安価に製造することができる
のである。しかし、これらの貝殻は有機物を多量に付着
しているため不純物となり、フィラーとして利用するこ
とができなかった。
Fillers can be manufactured at low cost using shells. However, these shells had a large amount of organic matter attached to them, which resulted in impurities and could not be used as fillers.

貝殻から有機物を除去する方法としては、(1)貝殻を
高温で焼<、(2)水酸化アルカリ水溶液中で1昼夜煮
沸し有機物を溶解し、流水中でブラシでこする、という
方法があった。
There are two methods for removing organic matter from shells: (1) baking the shells at high temperatures; (2) boiling the shells in an aqueous alkaline hydroxide solution for a day and night to dissolve organic matter, and then scrubbing the shells with a brush under running water. Ta.

(発明が解決しようとする問題点) 貝殻から有機物を除去゛するために、貝殻を高温で焼く
という方法は、大きな熱エネルギーを必要とするため高
価なものとなっている。また、アルカリ剤による有機物
の除去はブラシでこするという操作が加わるためこれも
また高価なものとなっている。
(Problems to be Solved by the Invention) The method of baking seashells at high temperatures in order to remove organic matter from them requires a large amount of thermal energy and is therefore expensive. Furthermore, removing organic matter using an alkaline agent requires scrubbing with a brush, which is also expensive.

上記の問題点より、未だ安価なフィラー原料の精製方法
がないのが現状である。
Due to the above-mentioned problems, there is currently no inexpensive method for purifying filler raw materials.

(問題点を解決するための手段) 上記の問題点を解決するため鋭意研究した結果、貝殻を
酸化力のある酸に浸すことにより、安価に貝殻に付着し
た有機物を除けることが見出された。
(Means for solving the problem) As a result of intensive research to solve the above problem, it was discovered that organic matter attached to the shells could be removed inexpensively by soaking the shells in oxidizing acid. .

貝殻は内側より、真珠層、接柱層、外殻皮より形成され
ているが、この外殻皮の表面に藻類、ふじつぼ等の付着
生物やフタボケムシ等の種々の生物が共生ないし寄生し
ている。これらがフィラーとして用いる際の有機不純物
となっている。本発明はこれらの有機不純物を除去し、
フィラー原料を得るために、貝殻を酸化力のある酸に浸
し20℃から90℃で所要の時間撹拌した後、酸から引
上げて水洗し、乾燥、粉砕する。酸につける時に超音波
洗浄装置を用いてもよい、また、撹拌時の温度は、酸の
濃度にもよるが、処理時間を短くするために60〜90
’Cが望ましい。
Shells are made up of nacre, trabecular layer, and outer shell from the inside, and on the surface of this outer shell, various organisms such as algae, barnacles, and other organisms live symbiotically or parasitically. There is. These are organic impurities when used as fillers. The present invention removes these organic impurities,
In order to obtain a filler raw material, shells are immersed in an oxidizing acid and stirred at 20 to 90°C for a required period of time, then taken out of the acid, washed with water, dried, and crushed. An ultrasonic cleaning device may be used when soaking in the acid, and the temperature during stirring is 60 to 90℃ to shorten the treatment time, depending on the concentration of the acid.
'C is preferable.

必要であるならば、酸で処理する前にアル・カリにより
前処理することも本発明に含まれる。貝殻を10〜50
%の濃度のアルカリ金属塩に20〜90℃、好ましくは
60〜90℃カ所要の時間浸し、外殻皮表面の有機物に
ダメージを与えた後、軽く水洗してから酸処理を行なう
1本発明のアルカリ金属塩とは、水酸化ナトリウム、水
酸化カリウム、水酸化リチウムのことである。
If necessary, pretreatment with alkali before treatment with acid is also included in the present invention. 10-50 shells
% concentration of an alkali metal salt for the required time at 20 to 90°C, preferably 60 to 90°C to damage the organic matter on the surface of the outer skin, and then lightly washing with water and then acid treatment. The alkali metal salts include sodium hydroxide, potassium hydroxide, and lithium hydroxide.

本発明に使用できる酸としては、硝酸、リン酸、硫酸、
亜硝酸等があげられる。使用時の酸の濃度はIN”co
nc、であり酸及び貝殻の種類により変化するが、処理
時間を短くするためにできるだけ高濃度のものが望まし
い。
Acids that can be used in the present invention include nitric acid, phosphoric acid, sulfuric acid,
Examples include nitrous acid. The concentration of acid during use is IN”co
nc, and varies depending on the acid and the type of shell, but it is desirable to have as high a concentration as possible in order to shorten the treatment time.

粉砕処理後の貝殻をフィラー原料として使用する際に篩
則することも可能である。通常、フィラーとして用いら
れる粉の粒径は0.01〜10μmであるが、必要に応
じた篩別をすることができる。
It is also possible to sieve the crushed shells when using them as filler raw materials. Usually, the particle size of the powder used as a filler is 0.01 to 10 μm, but it can be sieved if necessary.

(作用) 貝殻を酸に浸すことにより、貝殻に付着した有機不純物
を除き、安価にフィラー原料を得ることができる。
(Function) By soaking the shells in acid, organic impurities adhering to the shells can be removed and filler raw materials can be obtained at low cost.

(実施例および発明の効果) (実施例1) ホタテ貝殻を60〜80℃に加熱した濃リン酸に浸し、
1時間撹拌した。その後、引き上げ流水で洗浄し、乾燥
後、外殻皮表面を観察し、付着物の有無を表1に示した
。これを粉砕、篩則し、白色の良質なフィラー原料を得
た。
(Examples and effects of the invention) (Example 1) Soak scallop shells in concentrated phosphoric acid heated to 60 to 80°C,
Stirred for 1 hour. Thereafter, the shells were washed with running water, and after drying, the surface of the outer skin was observed, and the presence or absence of deposits is shown in Table 1. This was crushed and sieved to obtain a white high quality filler raw material.

(実施例2) 真珠貝殻を濃硝酸に浸し、60〜80℃で1時間撹拌し
た。真珠層が傷つく前に引き出し、流水で洗浄し、乾燥
後、外殻皮表面を観察し、付着物の有無を表1に示した
。これを粉砕、篩則し、ラン母のようにキラキラした虹
色の良質なフィラー原料を得た。
(Example 2) A pearl shell was immersed in concentrated nitric acid and stirred at 60 to 80°C for 1 hour. It was pulled out before the nacre layer was damaged, washed with running water, and after drying, the outer skin surface was observed, and the presence or absence of deposits is shown in Table 1. This was crushed and sieved to obtain a high-quality filler material with a rainbow color that sparkled like orchid mother.

(実施例3) カキ殻を80〜90℃の40%水酸化ナトリウム水溶液
に1時間浸した後、引き出して水洗した。
(Example 3) Oyster shells were immersed in a 40% sodium hydroxide aqueous solution at 80 to 90° C. for 1 hour, then taken out and washed with water.

これを、6N硫酸に浸し60〜80℃で2時間撹拌した
。その後、引き出し、水洗、乾燥後、外殻皮表面を観察
し、付着物の有無を表1に示した。
This was immersed in 6N sulfuric acid and stirred at 60 to 80°C for 2 hours. Thereafter, after being pulled out, washed with water, and dried, the surface of the outer skin was observed, and the presence or absence of deposits is shown in Table 1.

これを粉砕、篩則し、白色のフィラー原料を得た。This was crushed and sieved to obtain a white filler raw material.

(実施例4) アワビの殻を80〜90℃の50%水酸化ナトリウム水
溶液に1時間浸した後、引き出して水洗した。これを濃
リン酸に浸し10分間撹拌した。
(Example 4) Abalone shells were immersed in a 50% sodium hydroxide aqueous solution at 80 to 90°C for 1 hour, then taken out and washed with water. This was immersed in concentrated phosphoric acid and stirred for 10 minutes.

その後、引き出し水洗、乾燥後、外殻皮表面を観察し、
付着物の有無を表1に示した。これを、粉砕、篩別して
虹色の良質のフィラーを得た。
After that, the drawer was washed with water, dried, and the surface of the outer shell was observed.
Table 1 shows the presence or absence of deposits. This was crushed and sieved to obtain a rainbow-colored, high-quality filler.

(実施例5) ホタテ貝殻を60〜80℃に加熱した濃硝酸に浸し、3
0分間超音波洗浄を行なった。その後。
(Example 5) Scallop shells were immersed in concentrated nitric acid heated to 60 to 80°C.
Ultrasonic cleaning was performed for 0 minutes. after that.

引き出し、水洗、乾燥後、外殻皮表面をamし、付着物
の有無を表1に示した。これを粉砕、篩則し、白色のフ
ィラー原料を得た。
After being pulled out, washed with water, and dried, the surface of the outer skin was ambushed, and the presence or absence of deposits is shown in Table 1. This was crushed and sieved to obtain a white filler raw material.

Claims (2)

【特許請求の範囲】[Claims] (1)貝殻を酸化力のある酸に浸すことにより、貝殻に
付着した有機物を除くことを特徴とするフィラー原料の
精製方法。
(1) A method for purifying filler raw materials, which comprises removing organic substances attached to shells by immersing the shells in an oxidizing acid.
(2)貝殻をアルカリにより前処理を行なった後酸化力
のある酸に浸す、特許請求の範囲第(1)項記載の方法
(2) The method according to claim (1), wherein the shells are pretreated with an alkali and then immersed in an oxidizing acid.
JP62021165A 1987-01-30 1987-01-30 Refining method for filler material Expired - Lifetime JP2668357B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62021165A JP2668357B2 (en) 1987-01-30 1987-01-30 Refining method for filler material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62021165A JP2668357B2 (en) 1987-01-30 1987-01-30 Refining method for filler material

Publications (2)

Publication Number Publication Date
JPS63190711A true JPS63190711A (en) 1988-08-08
JP2668357B2 JP2668357B2 (en) 1997-10-27

Family

ID=12047299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62021165A Expired - Lifetime JP2668357B2 (en) 1987-01-30 1987-01-30 Refining method for filler material

Country Status (1)

Country Link
JP (1) JP2668357B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01245037A (en) * 1988-03-28 1989-09-29 Naoji Kosugi Fine scallop shell powder for filler
JPH02221117A (en) * 1989-02-20 1990-09-04 Hisanao Zenno Method for refining natural calcium base material
EP1088859A1 (en) * 1999-09-28 2001-04-04 Geopolimeri S.r.l. Process for producing inorganic flours from natural waste products and their use
KR100334654B1 (en) * 1999-12-06 2002-04-27 박정수 Admixure synthesizing method for construction materials by using oyster shell
KR100394604B1 (en) * 2000-11-21 2003-08-27 (주) 금영 A filler manufacturing method for cement by using the shells of oysters and filler made thereby

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62278122A (en) * 1986-05-26 1987-12-03 Miyagi Pref Gov Surface-treatment of shell

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62278122A (en) * 1986-05-26 1987-12-03 Miyagi Pref Gov Surface-treatment of shell

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01245037A (en) * 1988-03-28 1989-09-29 Naoji Kosugi Fine scallop shell powder for filler
JPH02221117A (en) * 1989-02-20 1990-09-04 Hisanao Zenno Method for refining natural calcium base material
JPH0818829B2 (en) * 1989-02-20 1996-02-28 久直 禅野 Method for producing calcium material mainly composed of natural calcium compound
EP1088859A1 (en) * 1999-09-28 2001-04-04 Geopolimeri S.r.l. Process for producing inorganic flours from natural waste products and their use
KR100334654B1 (en) * 1999-12-06 2002-04-27 박정수 Admixure synthesizing method for construction materials by using oyster shell
KR100394604B1 (en) * 2000-11-21 2003-08-27 (주) 금영 A filler manufacturing method for cement by using the shells of oysters and filler made thereby

Also Published As

Publication number Publication date
JP2668357B2 (en) 1997-10-27

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