US700602A

US700602A - Process of making detergents.

Info

Publication number: US700602A
Application number: US7520901A
Authority: US
Inventors: Godfrey Bamberg
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-09-12
Filing date: 1901-09-12
Publication date: 1902-05-20
Anticipated expiration: 1919-05-20

Description

UNITED STATES PATENT OEETCE.

GODFREY BAMBERG, OF LONDON, ENGLAND.

PROCESS OF MAKING DETERGENTS.

SPECIFICATION forming part of Letters Patent No. 700,602, dated May 20, 1902.

Application filed September 12,1901. Serial No. 75,209. (No specimens.)

To all 2072,0111, it may concern.-

Be it known that I, GODFREY BAMBERG, a subject of the King of GreatBritain, residing at Boswell House, Bolt Court, Fleet street, London, England, have invented certain new and useful Improvements in Processes of Making Detergents, of which the following is a specification.

My invention has for its object the manufacture of a dry detergent powder,which shall be instantly and completely soluble in cold water, from oatmeal or the meal of other suitable cereal, olein, (commercial oleic acid,) and caustic soda of density sufficient to cause the chemical change in the oatmeal and combination between the oleic acid and soda,which by subsequent absorption of carbonic acid shall produce a dry detergent powder of exceptional cleansing properties and the whole of which manufacture and chemical reactions shall be carried on without the application of heat.

In carrying out my invention I put into a powerful mixer a charge of oatmeal or the meal of other suitable cereal and add onehalf of the entire charge of olein and run the mixer for about five minutes to thoroughly incorporate the meal and oil and then mix with it the remaining half of the oil. A charge of caustic alkali in .solution of density 1.375 to 1.4 specific gravity is now poured into the mixer and run for fifteen minutes, at the end of which time the whole of the charges are converted into a friable solid ma-' terial, which can be readily run through machine-sieves and granulated. Considerable heat is evolved during the several chemical reactions which take place. The granules are placed on trays, and the free alkali thereof absorbs carbonic-acid gas from the atmosphere, forming carbonate of soda, which carbonate takes up the water of the mixture as water of crystallization, the mixture becoming in the course of a weeks exposure a dry powder, which has increased in weight by its exposure from eight to ten per-cent. The oatmeal hulls are decorticated during the operation of the process, and the caustic alkali decomposes them to asoluble mass. The powder when desired can now be ground and perfumed or an antiseptic, such as thymol, be added. This powder is completely soluble in cold water and is far more cleansing than soap, the oatmeal being entirely changed in composition.

I find one of the best proportions in the charges for insuring the product shall be properly available for after process is as follows: oatmeal, eighteen pounds; olein, thirteen pounds; caustic soda, twelve pounds, dissolved in water to be of density 40 Baum. The weight of the water mixed with twelve pounds of caustic soda is twenty-two pounds, equal to two gallons and one quart. This will produce after the Weeks exposure to the atmosphere and taking up carbonic acid seventy-two pounds of dry soap powder.

When it is desired that sodium carbonate should not be present in the powder, before turning the product from the mixer a charge of ammonium sulfate may be run in, so as to produce some sulfate of soda instead by the reaction with the free alkali. present in the mixture before carbonation. A soap powder for toilet purposes can also be made by mixing with the oleine a dextrinized meal in suitable proportions and the alkali in proportion to exactly combine with the olein added and after working the mixer adding some odorless dextrine to bring the material to a condition suitable for granulation and drying.

Instead of olein, cotton-seed or other oils, as free as possible from stearin or stearic acid, may be used; but the olein is the best suited for this purpose.

I declare that what I claim is 1. A process of manufacturing a detergent powder consisting in mixing olein and a suitable cereal, then adding caustic alkali of suitable strength, and then exposing said mass to the atmosphere until the free alkali be-v comes carbonated.

2. Aprooess of manufacturing a detergent powder consisting in mixing in Water olein and a cereal, adding an alkali thereto, and then exposing the mass to the atmosphere for the purpose set forth.

3. A process of manufacturing a detergent powder consisting in thoroughly mixing a suitable cereal and olein, then adding to the mixture and thoroughly incorporating therewith caustio alkali, and then suitably expos ing the said mixture to the atmosphere.

4. A process of manufacturing a detergent powder consisting in suitably mixing oatmeal and olein, then adding to the mixture and thoroughly incorporating therewith caustic alkali of a sufficient strength, and then suitably exposing the mixture to the atmosphere until the free alkali becomes carbonated.

5. A process of manufacturing adetergent powder consisting of mixing olein and oatmeal together, incorporating in the said miX-