---
title: "Deliming Bath"
industry: "Leather and Related Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DELIMING_BATH"
  data_integrity_hash: "4a01e73b8feab05b86193571b0477b0b"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:DELIMING_BATH"
  data_source_uri: "https://cnfx.com/llms/industry/leather-and-related-product-manufacturing/product/deliming-bath.md"
  official_resource_url: "https://cnfx.com/industry/leather-and-related-product-manufacturing/product/deliming-bath"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "pH 3.5-5.0 at 25-35°C, 0.1-0.3 bar pressure"
    unit: "L"
engineering_limits:
  max_safe_operating_point:
    value: 2.8
    unit: "or"
    consequence: "Acid-base equilibrium disruption (H+ ion concentration exceeding 10^-2.8 M or below 10^-6.2 M) leading to collagen hydrolysis"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Sulfuric acid concentration exceeding 15% w/w"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrated conductivity sensors with automated acid dosing cutoff at 12% concentration"
  - node_2:
      trigger: "Mechanical agitator imbalance exceeding 0.05 mm vibration amplitude"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual-axis vibration monitoring with automatic shutdown at 0.04 mm amplitude"
bom_nodes:
  bath-tank:
    type: "part"
    urn: "URN:CNFX:ME:BATH_TANK"
    interface_type: "physical-logic-coupled"
  agitation-system:
    type: "part"
    urn: "URN:CNFX:ME:AGITATION_SYSTEM"
    interface_type: "physical-logic-coupled"
  temperature-control-unit:
    type: "part"
    urn: "URN:CNFX:ME:TEMPERATURE_CONTROL_UNIT"
    interface_type: "physical-logic-coupled"
  ph-monitoring-probe:
    type: "part"
    urn: "URN:CNFX:ME:PH_MONITORING_PROBE"
    interface_type: "physical-logic-coupled"
  drain-valve:
    type: "part"
    urn: "URN:CNFX:ME:DRAIN_VALVE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING - DIRECTIVE 2014/68/EU FOR PRESSURE EQUIPMENT"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/leather-and-related-product-manufacturing/product/deliming-bath.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "94b60f2721de9b1f521b98166741d9c1564bd9ef5ddd618b584fea5dfe48461c"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Deliming Bath

## 1. Technical Definition
A chemical treatment vessel used in leather processing to remove lime and adjust pH after liming operations.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **pH 3.5-5.0 at 25-35°C, 0.1-0.3 bar pressure**. Failure boundary: **pH &lt; 2.8 or &gt; 6.2 causes protein denaturation, temperature &gt; 45°C accelerates chemical degradation**, Mechanism: **Acid-base equilibrium disruption (H+ ion concentration exceeding 10^-2.8 M or below 10^-6.2 M) leading to collagen hydrolysis**.

### 2.1 Analytical Physics Model
Governed by the **Hansen Solubility Distance (HSP)**:

> **Primary Equation**: $R_a = \sqrt{4\Delta\delta_d^2 + \Delta\delta_p^2 + \Delta\delta_h^2}$  
> **Engineering Impact**: Predicts seal/gasket swelling when exposed to CIP chemicals.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| \delta_d | Dispersive | Engineering Constant |
| \delta_p | Polar | Engineering Constant |
| \delta_h | Hydrogen | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Sulfuric acid concentration exceeding 15% w/w | 8 | Polypropylene lining delamination and tank wall corrosion | Integrated conductivity sensors with automated acid dosing cutoff at 12% concentration |
| Mechanical agitator imbalance exceeding 0.05 mm vibration amplitude | 8 | Shaft seal failure causing chemical leakage | Dual-axis vibration monitoring with automatic shutdown at 0.04 mm amplitude |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | L | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Bath Tank](https://cnfx.com/llms/industry/leather-and-related-product-manufacturing/product/bath-tank.md) `(Standalone System)`
- [Agitation System](https://cnfx.com/llms/industry/food-manufacturing/product/agitation-system.md) `(Standalone System)`
- [Temperature Control Unit](https://cnfx.com/llms/industry/chemical-manufacturing/product/temperature-control-unit.md) `(Standalone System)`
- [pH Monitoring Probe](https://cnfx.com/llms/industry/leather-and-related-product-manufacturing/product/ph-monitoring-probe.md) `(Standalone System)`
- [Drain Valve](https://cnfx.com/llms/industry/rubber-and-plastic-product-manufacturing/product/drain-valve.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Chemical Mixing System**, **pH Monitoring and Control System**, **Wastewater Treatment System**  
**Downstream Applications**: Finished Leather Hides, Automotive Upholstery Leather, Footwear Leather  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What is the primary function of a deliming bath in leather manufacturing?
**A**: A deliming bath neutralizes and removes residual lime from hides after the liming process, adjusting pH levels to prepare the leather for subsequent tanning operations.

### Q: Why are materials like stainless steel and chemical-resistant polymers used in deliming baths?
**A**: Stainless steel offers corrosion resistance against acidic deliming chemicals, while chemical-resistant polymers prevent degradation from harsh solutions, ensuring durability and safety in industrial leather processing.

### Q: How does the agitation system in a deliming bath improve leather processing efficiency?
**A**: The agitation system ensures uniform chemical distribution and consistent contact with hides, enhancing lime removal and pH adjustment while reducing processing time and improving leather quality.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- CE MARKING - DIRECTIVE 2014/68/EU FOR PRESSURE EQUIPMENT

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Deliming Bath](https://cnfx.com/industry/leather-and-related-product-manufacturing/product/deliming-bath)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **5** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: DELIMING_BATH | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: f6042933
