Conveyor lubricants for use in the food and beverage industries

a technology for conveyors and food and beverage industries, applied in the field of conveyors, can solve the problems of clogging of nozzles, subsequent loss of lubricant flow to conveyor surfaces, and pitting of concrete floor surfaces, and achieve the effect of providing water hardness compatibility

Inactive Publication Date: 2004-08-26
ECOLAB USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

0074] The lubricants according to the present invention function excellently in hard water, and thus require no chelating or sequestering agents to prevent precipitates from forming in hard water environments. The ether carboxylate based lubricant according to the present invention has been found to provide water hardness compatibility for the lubricant solution with water containing as much as 20 grains per gallon of water hardness without any chelating or seque

Problems solved by technology

These precipitates can cause clogging of nozzles and subsequent loss of lubricant flow to conveyor surfaces.
However, strong chelating agents such as EDTA are also known for leaching calcium out of concrete which causes pitting in the concrete floor surfaces which are commonly found in beverage plants and dairy operations.
However, amine based lubricants tend to form precipitates with polyvalent anions such as carbonates and sulfates which are also present in hard water.
This can lead to clouding of the lubricant solution.
Furthermore, a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0117] The following lubricant concentrate was prepared.

1TABLE 1 Raw Material Tradename Function Wt-% Oleyl ether EMULSOGEN .RTM. Lubricant 7.5 carboxylate, COL 100 10 moles ethoxylation Sodium alkyl PETRO .RTM. LBA Coupling agent 7.0 naphthalene Sulfonate; 50% active C.sub.9-C.sub.11 Alkoxylated DEGRESSAL .RTM. Defoamer / surfactant 5.0 alcohol SD20 Chloralyl triaza DOWICIL .RTM. 75 Biocide / preservative 0.13 azoniaadamentane Dodecyl / TOMAH .RTM. DA 1618 Corrosion inhibitor 2.85 tetradecyloxypropyl-1,3-diaminopropane Phosphated BURCOTERGE .RTM. Corrosion inhibitor 0.50 amine oxide PAO-35 Dicarboxylic SOKALON .RTM. DCS Corrosion inhibitor 0.85 acid mixture Sodium gluconate, Sodium Gluconate Chelates iron; 2.00 granular FCC / USP rust inhibitor Water, zeolite Soft water 73.41 softened Sodium NaOH 50% pH adjuster 0.76 hydroxide; 50%

[0118]

2TABLE 2 Chemical description Tradename Function A B C D Sulfo methyl ester ALPHA-STEP Lubricant --27.00 27.0 MC-38 Alkyl dimethyl benzyl ammonium Barquat...

examples 3 and 4

and Comparative Example E, Conade.RTM. 2001

[0133] Examples 3 and 4 were prepared for milk coagulation testing. Example 3 is essentially the same formulation as example 1, while example 4 has an increased level of ether carboxylate lubricant. The formulas are shown in Table 13.

13TABLE 13 Raw Material Tradename Function Ex 3 Ex 4 Oleyl ether carboxylate, EMULSOGEN .RTM. Lubricant 7.50 9.00 10 moles ethoxylation COL 100 Sodium alkyl naphthalene PETRO .RTM. LBA Coupling agent 7.00 7.00 Sulfonate; 50% active C.sub.9-C.sub.11 Alkoxylated alcohol DEGRESSAL .RTM. Defoamer / surfactant 3.50 5.00 SD 20 Chloralyl triaza azoniaadamentane DOWICIL .RTM. 75 Biocide / preservative 0.20 0.130 Dodecyl / tetradecyloxypropyl-1,3- TOMAH .RTM. DA 1618 Corrosion inhibitor 2.85 2.85 diaminopropane Phosphated amine oxide BURCOTERGE .RTM. Corrosion inhibitor 0.50 0.50 PAO-35 Dicarboxylic acid mixture SOKALON .RTM. DCS Corrosion inhibitor 0.85 0.85 Sodium gluconate, granular Sodium gluconate Chelates iron; 2.00 2.0...

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Abstract

A lubricant concentrate comprising an effective lubricating amount of at least one ether carboxylate and at least one foam destabilizer, and methods of using the same. The lubricant concentrate may be diluted with water prior to use.

Description

[0001] This application is a continuation-in-part of copending U.S. patent application Ser. No. 10 / 294851 filed Nov. 14, 2002, now allowed.[0002] The present invention relates to lubricant concentrates and lubricant use compositions, and in particular to lubricant compositions which are employed as conveyor lubricants for use in the food and beverage industries, and to methods of using the same.[0003] In most packaging operations, including beverage operations, containers are moved along mechanized conveyor systems in an upright position from station to station wherein various operations including filling, labeling, sealing, capping, and the like are performed on the containers. During some of the operations, the containers are open. In particular in the beverage industry, it is important that the containers move without hindrance along the conveyor such that no liquid is spilled onto the conveyor. This is particularly important for dairy based beverages such as milk because milk ca...

Claims

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Application Information

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IPC IPC(8): C10M141/08C10M173/02
CPCC10M141/08C10M173/025C10M2207/122C10M2207/123C10M2207/127C10N2270/02C10M2209/109C10M2215/04C10M2219/044C10N2240/52C10M2209/108C10N2040/38C10N2070/02
Inventor RUHR, RICHARD O.WICHMANN, GERALDMALVEY, MEGANJOHNSON, RICHARD D.HALSRUD, DAVID
Owner ECOLAB USA INC
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