US130663A - Improvement in treating asbestus and obtaining useful products therefrom - Google Patents

Improvement in treating asbestus and obtaining useful products therefrom Download PDF

Info

Publication number
US130663A
US130663A US130663DA US130663A US 130663 A US130663 A US 130663A US 130663D A US130663D A US 130663DA US 130663 A US130663 A US 130663A
Authority
US
United States
Prior art keywords
asbestus
fibers
treating
improvement
products therefrom
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.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US130663A publication Critical patent/US130663A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02Treatment
    • C04B20/08Defibrillating asbestos

Definitions

  • the object of my invention is to utilize asbestus or amianthus by disintegrating the crude mineral, extracting the fibers the'etrom, and finally pulping the fibers.
  • the fibers should be separated from the earthy and other non fibrous portions of the mineral before the said fibers are pulped.
  • the crude asbestus or amianthus may be treated in the manner described in the Letters Patent for asbestus fiber allowed to me on the 3d day'ofiAugust, 1872--that is to say, bya strong lye-which has a tendency to open and disintegrate the crude mass, and, at the same time, strengthen the fibers and render them more flexible.
  • the fibers may be still further disintegrated by careful manipulation or by suitable mechanical appliances, and then washed preparatory to being pulped by the rubbing and tearing action of the well-known pulping-engine.
  • Theasbestus pulp made in accordance with my invention may be molded or otherwise converted into many useful fire-proof articles, or into slabs or thin paper or pasteboard-like sheets, the pulp having self-adhesive properties which retain it in shape after being molded or otherwise formed, although it is advisable, in most cases, to add a little size or other adhesive substance to the pulp to render the alent hydrocarbons have the effect of disintegrating the crude mineral; and other sub stances may be employed for the same purpose.
  • the preliminary disintegration of the crude asbestus or amianthns forms no part of my present invention, a thorough separation of the fibers from the earthy matter by any chemical and mechanical appliances being the main preliminary necessity.
  • Alum may also be used in treating the fibers or the pulp with other substances, and in a manner which the nature of the mineral may suggest, for it should be understood that the charac' teristics of asbestus and amianthus differ in different localities, the mineral, consequently, demanding Variable treatment.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)

Description

UNITED STATES PATENT QFFIcE.
IMPROVEMENT IN TREATING ASBESTUS ANDOBTAINING USEFUL PRODUCTS THEREFROM.
Specification forming part of Letters Patent No. 130,663, dated August 20, 1872.
Specification describing a Mode or Process of Utilizing Asbestus and Products of the same, invented by JOHN S. ROSENTHAL, of Philadelphia, Pennsylvania.
The object of my invention is to utilize asbestus or amianthus by disintegrating the crude mineral, extracting the fibers the'etrom, and finally pulping the fibers.
In carrying out my invention it is essential, in the first instance, that the fibers should be separated from the earthy and other non fibrous portions of the mineral before the said fibers are pulped. In order to attain this preliminary object the crude asbestus or amianthus may be treated in the manner described in the Letters Patent for asbestus fiber allowed to me on the 3d day'ofiAugust, 1872--that is to say, bya strong lye-which has a tendency to open and disintegrate the crude mass, and, at the same time, strengthen the fibers and render them more flexible. After this preliminary treatment the fibers may be still further disintegrated by careful manipulation or by suitable mechanical appliances, and then washed preparatory to being pulped by the rubbing and tearing action of the well-known pulping-engine. I
It should be here understood that I do not propose to convert the longer fibers of asbes tns or amianthus into pulp, for they atl'ord a. more valuable productnamely, an available fiber for yarn and textile fabrics; but in quarrying the mineral a great portion consists of fragments too short for conversion into fibers for textile fabrics, but long enough for pulping, the long fibers being twisted into the yarn for which I have this day applied for Letters Patent.
Many attempts have been made to utilize asbestus by making it into pulp; Without much success, however, owing, it is believed, to imperfect preliminary disintegration and the retention of those earthy portions of the mineral Whichrender the fiber brittle, and to the fracturing of the fibers by grinding the mineral prior to pulping the same for 1 consider it essential to the production of a good asbestus pulp to first obtain the pure fiber and then to disintegrate it by the rubbing and tearing operation adopted in pulping rags, 8w.
Theasbestus pulp made in accordance with my invention may be molded or otherwise converted into many useful fire-proof articles, or into slabs or thin paper or pasteboard-like sheets, the pulp having self-adhesive properties which retain it in shape after being molded or otherwise formed, although it is advisable, in most cases, to add a little size or other adhesive substance to the pulp to render the alent hydrocarbons have the effect of disintegrating the crude mineral; and other sub stances may be employed for the same purpose. In fact, the preliminary disintegration of the crude asbestus or amianthns forms no part of my present invention, a thorough separation of the fibers from the earthy matter by any chemical and mechanical appliances being the main preliminary necessity.
Much of the asbestus found in this and other countries is of a brown color; but this can be removed by subjecting the fibers, prior or subsequent to pulping, to a solution of sul' phuric or other equivalent acid, or to any bleaching material or composition. Alum may also be used in treating the fibers or the pulp with other substances, and in a manner which the nature of the mineral may suggest, for it should be understood that the charac' teristics of asbestus and amianthus differ in different localities, the mineral, consequently, demanding Variable treatment. Whatever treatment is adopted, however-Whether chemical or mechanical-the fibers should be effectually separated from foreign matter prior to pulping, and the pulping should be accomplished not by the preliminary fracture of the fibers while they form a part of the crude mineral, but by rubbing and tearing while they are in a condition of pure fibers.
1 claim as my invention .1. The utilizing of asbestus and amianthns by disintegrating the fibers, separating the same from earthy and other foreign matter, and converting the cleansed fibers into pulp, all substantially as set forth.
2. A pulp made of the within-described disintegrated and cleansed fibers of asbestus or amianthus.
3. Slabs, sheets, and other objects made by Witnesses:
H. HowsoN, WM. A. STEEL.
US130663D Improvement in treating asbestus and obtaining useful products therefrom Expired - Lifetime US130663A (en)

Publications (1)

Publication Number Publication Date
US130663A true US130663A (en) 1872-08-20

Family

ID=2200081

Family Applications (1)

Application Number Title Priority Date Filing Date
US130663D Expired - Lifetime US130663A (en) Improvement in treating asbestus and obtaining useful products therefrom

Country Status (1)

Country Link
US (1) US130663A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458393A (en) * 1965-03-01 1969-07-29 Fmc Corp Modified colloidal chrysotile and method of preparing same
US3547669A (en) * 1966-04-18 1970-12-15 Fmc Corp Stable liquid compositions of matter
US3652382A (en) * 1969-07-29 1972-03-28 Fmc Corp High surface area chrysotile and method of making same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458393A (en) * 1965-03-01 1969-07-29 Fmc Corp Modified colloidal chrysotile and method of preparing same
US3547669A (en) * 1966-04-18 1970-12-15 Fmc Corp Stable liquid compositions of matter
US3652382A (en) * 1969-07-29 1972-03-28 Fmc Corp High surface area chrysotile and method of making same

Similar Documents

Publication Publication Date Title
US10704197B2 (en) Nanocellulose
DE60208034T2 (en) METHOD FOR PRODUCING A BLEACHED TMP OR CTMP PULP
WO1999037834A1 (en) Process for the production of elementary vegetable bast fibres
US3620911A (en) Wet depithing of a nonwoody lignocellulosic plant material
US130663A (en) Improvement in treating asbestus and obtaining useful products therefrom
US223670A (en) Manufacture of paper-pulp from wood
US1881419A (en) Fiber derivative
US53247A (en) Improved process for disintegrating fibers
US610957A (en) Karl andreas zschorner
US346887A (en) William winslow bennett
US2018938A (en) Apparatus for and method of treating and handling paper pulp and similar fibrous materials
US2099400A (en) Preparation of paper pulp
CA1272354A (en) Methods for producing low fines content pulp
US430516A (en) Hermann endemann
US151662A (en) Improvement in the processes for making paper-pulp from varieties of palm
US1890179A (en) Preparing refined bleached pulp
US2164192A (en) Method of making paper from wheat, oat, or rye straw
US1203511A (en) Process of producing pulp for paper or the like.
US997064A (en) Process for the production of mechanical wood-pulp.
US47301A (en) Improvement in separating gummy and silicious matters from vegetable fibers
US1602253A (en) Method of producing half stuffs and cellulose from vegetable fibers
US151345A (en) Improvement in the processes of treating asbestus
Kishor et al. Extraction and characterization of cattail fibre and lignin recovery from retting bath
US921502A (en) Chemical process for the treatment of the straw of flax or other plants.
US2018490A (en) Method of producing paper pulp from fibrous material