Title of Invention

A PROCESS FOR THE PREPARATION OF A CLEANING COMPOSITION FOR UTENILS AND THE LIKE FROM INDUSTRIAL WASTE/BYPRODUCTS

Abstract 1. A process of preparation of a cleaning composition for utensils and the like from industrial waste/by products, comprising the steps of neutralising linear alkyl benzene sulphonic acid (LAB) with sodium carbonate available as an Industrial by product, to a pH of 7; uniformly mixing upto 4.5% by wt. of the said neutralised LAB along with dried phosphogypsum obtained as industrial waste and 0.5 to 2 parts by wt. of at least one additive selected from sodium carbonate, sodium hypochlorite, sodium perborate, sodium silicate, sodium sulphate, sodium trlpolyphosphate and trisodium phosphate.
Full Text This invention relates to a process of preparation of a cleaning composition for utensils and the like from industrial waste/by products; and a cleaning preparation prepared by the said process.
An object of this invention is to propose a process for the preparation of a cleaning composition which is cost saving and which at the same time yields a value added product.
Another object of this invention is to propose a process for the preparation of a cleaning composition which is ecologically friendly, since industrial waste/by products which otherwise would have constituted pollutants are gainfully utilised, on a commercial scale, in producing a useful product for the common man.
Yet another object of this invention is to propose

a process as aforesaid which is simple and yet effective.
Various other features of this invention will be apparent from the description thereof given hereunder.
The process, according to this Invention, for the preparation of a cleaning composition for utensils and the like from Industrial waste/by products, comprises the steps of neutralising linear alkyl benzene sulphonlc acid (LAB) with sodium carbonate available as an industrial by product, to a pH of 7; uniformly mixing upto 4.5% by wt. of the said neutralised LAB along with dried phosphogypsum obtained as industrial waste and 0.5 to 2 parts by wt. of at least one additive selected from sodium carbonate, sodium hypochlorite, sodium perborate, sodium silicate, sodium sulphate, sodium trlpolyphosphate and trlsodlum phosphate.
EXAMPLE Linear alkyl benzene sulphonlc acid (LAB) is

neutralised to pH 7 by the addition of sodium carbonate which is obtained as a byproduct of the caprolactum/caustlc lye Industry.
3.5 parts by wt. of the neutralised LAB is uniformly mixed in a zigma blender with dried phosphogypsum which is a waste material formed during the reaction of trlcalclum phosphate with sulphuric acid to yield phosphoric acid.
Actually, the waste phosphogypsum is available in the washed form having 20% to 25% water. The moist phosphogypsum is dried in tray/rotary driers or sundrled before blending the same with the neutralised LAB in the zlgma blender.
Additives selected from sodium carbonate, sodium hypochlorite, sodium perborate, sodium silicate, sodium sulphate, sodium trlpolyphosphate and trisodium phosphate are also blended.
In the abovementloned Example 0.5 to 2 parts by

wt. of sodium carbonate and trisodium phosphate are also blended in the mix.
The resulting composition has good cleaning and scouring properties useful in cleaning utensils and the like.
The terms and expressions in this specification are of description and not of limitation having regard to the scope and ambit of this invention.


We Claim:
1. A process of preparation of a cleaning
composition for utensils and the like from
industrial waste/by products, comprising the steps
of neutralising linear alkyl benzene sulphonic
acid (LAB) with sodium carbonate available as an
Industrial by product, to a pH of 7; uniformly
mixing upto 4.5% by wt. of the said neutralised
LAB along with dried phosphogypsum obtained as
industrial waste and 0.5 to 2 parts by wt. of at
least one additive selected from sodium carbonate,
sodium hypochlorite, sodium perborate, sodium
silicate, sodium sulphate, sodium
trlpolyphosphate and trisodium phosphate.
2. A process of preparation of a cleaning
composition for utensils and the like from
industrial waste/by products substantially as
herein described.

3. A cleaning composition for utensils and the like whenever prepared by a process as claimed in any one of the preceding Claims.

Documents:

1871-mas-1996 claims duplicate.pdf

1871-mas-1996 claims.pdf

1871-mas-1996 correspondencne po.pdf

1871-mas-1996 description (complete) duplicate.pdf

1871-mas-1996 description (complete).pdf

1871-mas-1996 form-1.pdf


Patent Number 197906
Indian Patent Application Number 1871/MAS/1996
PG Journal Number 30/2009
Publication Date 24-Jul-2009
Grant Date 29-Jun-2006
Date of Filing 25-Oct-1996
Name of Patentee M/S. THE FERTILISERS & CHEMICALS TRAVANCORE LIMITED
Applicant Address RESEARCH AND DEVELOPMENT CENTRE, UDYOGAMANDAL 683 501 , COCHIN,
Inventors:
# Inventor's Name Inventor's Address
1 JANARDANA KURUP NANDAKISHORE RESEARCH AN DEVELOPMENT CENTRE, THE FERTILISERS & CHEMICALS TRAVANCORE LIMITED, UDYOGAMANDAL 683 501, COCHIN,
2 RAMAN NAIR RAJAGOPALAN NAIR RESEARCH AN DEVELOPMENT CENTRE, THE FERTILISERS & CHEMICALS TRAVANCORE LIMITED, UDYOGAMANDAL 683 501, COCHIN,
3 DR. ALOK KUMAR BHATTACHARYA RESEARCH AN DEVELOPMENT CENTRE, THE FERTILISERS & CHEMICALS TRAVANCORE LIMITED, UDYOGAMANDAL 683 501, COCHIN,
PCT International Classification Number C11D11/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA